sting - technical catalogue 8210gb 200902

STING – Compact Air Handling UnitTechnical data

Fläkt Woods 8210 GB 2009.02 2 Specifications are subject to alteration without notice

STING CATALOGUESTING CATALOGUE

Contents

Sheet

Contents ........................................................................ 2

Unit Description .............................................................. 3

Delivery Configuration ............................................ 4

Quick Selection .......................................................... 5

Design ........................................................................ 6

Technical Details ....................................................... 8

Size 10 .................................................................... 8

20 .................................................................... 9

20 Top .......................................................... 11

30 .................................................................. 12

30 Top .......................................................... 14

35 .................................................................. 15

35 Top .......................................................... 17

40 .................................................................. 18

50 .................................................................. 19

65 .................................................................. 20

80 .................................................................. 21

85 .................................................................. 22

Cooler ...................................................................... 23

Sizing ...................................................................... 28

Controls ...................................................................... 29

Accessories ..................................................................... 37

Space required ............................................................... 46

Ordering Codes ............................................................. 47


STING CATALOGUESTING CATALOGUE

The STING is a compact air handling unit produced in 9 sizes. The STING is the flexible unit that is easy to install and commission.The air handling unit is supplied with direct-driven, supply air and extract air fans, supply air and ex-tract air filters and rotary heat exchanger.

The STING has a wide range of air-handling acces-sories for installation in the ducting; these include dampers, air heaters, air coolers, sound attenuators, etc.The control system is integrated into the unit and is

prepared for a wide range of external functions. The cables of the temperature sensor and actuators have easy-to-connect quick connectors.

Typical applicationsSTING is a compact one-piece unit that is well-suit-ed for installation in public buildings such as day nurseries, schools, offices, shops etc. The STING is designed for indoor or outdoor installation.

Unit Description

0 0,5

85

80

65

60

50

40

30

20

10

1 1,5 2 2,5 3 3,5 4 4,5 5 5,5 6 6,5 7 7,5 8 8,5m3/s

m3/s

0

10

20

30

35

40

50

65

80

85

0,5 1 1,5 2 2,5 3 3,5 4 4,5 5 5,5 6 6,5 7 7,5 8 8,5

Flödesområde

Sto

rlek

Flödesområde

STING 35

STING 30

STING 20

STING 10

STING 85

STING 80

STING 65

STING 50

STING 40

STING 85

80

65

50

40

35

30

20

10

A darker area indicates flow at SFPv >2,5 at 250 Pa external pressure.

Flow range

Siz

e


STING CATALOGUE

Unit Description

The units are always supplied with an indivisible cas-ing as standard. The units are supplied with a bottom right-hand supply air fan and can be changed with ease to a top left-hand supply air fan. This is done by means of a simple switching operation in the control system.For available configurations, see table below. The units can be installed horizontally or vertically. A stand is available as an accessory for installation in a vertical configuration.The size 10 unit has dimensions that makes it possible to transport them through a 900 mm wide door with-out having to dismantle them.

Delivery configuration, sizes 10-20The units can be supplied with customized fan ar-rangement. The standard configuration is a top or bottom right-hand supply air fan. The unit can be changed with ease to a configuration with a top or bottom left-hand supply air fan. This is done by means of a simple switching operation in the control system.The unit can be ordered with an outlet and/or inlet for upward air discharge. To be specified when order-ing.The size 30-85 units can only be installed horizontally.STING Top size20-35 is available with all connections on top.

Delivery configuration, sizes 30-85

Split casing sections for transport within the siteFor simple transport through narrow doorways within the building site, the size 20 – 85 units can be ordered in a divisible version. The size 30 – 50 units are always di-visible. The size 20, 65 – 85 units are also available in the one-piece version.The unit sections are bolted together and most of the cables are fitted with a quick connector.

= Exhaust air = Outdoor air = Extract air = Supply air = Delivery version

Size

10 • •

20 • • • • •

30 • • • •

35 • • • •

40 • • •

50 • • •

65 • • •

80 • • •

85 • • •


STING CATALOGUE

Duct connec-tion

Dimension sketch, Size 10-20 Dimension sketch, Size 30-85

Technical Details, Quick Selection

Pressure flow chart, for STING Sizes 10-85

0.2 0.4 0.6 0.8 1.0 2 3 4 5 6 7 8 9 1050

100

200

500

100012001400

q vm 3/h

m 3/s

pex

tern

, Pa

STING 10 - 85

10-04-2005 / STING10D.FIL

2000 3000 40005000 10000 20000 30000q v

m 3/h

m 3/s

pex

tern

, Pa

10-04-2005 / STING10D.FIL

2559 2279 2001

2010 30 35 40 50 858065

∆

Duct connec-tion

Width

Height

Length

Height

Length

Width

Duct connec-tion

Duct connec-tion

Size

Exte

rnal

. Pa

Size Width Height Length Max. length of Weight Duct Duct connection (mm) (mm) (mm) block (mm) (kg) connection /STING Top

10 836 875 1270 – 238 ø 315 –

20 1036 1075 1600 550 352 ø 400 ø 400

30 1186 1225 1900 700 424 800 x 400 ø 500

35 1186 1225 1900 700 442 800 x 400 ø 500

40 1436 1475 2200 750 646 1000 x 500 –

50 1736 1775 2400 850 858 1200 x 600 –

65 2004 2074 2712 1104 1441 1600 x 800 –

80 2604 2674 2912 (3112) *) 1204 (1404) *) 2230 2000 x 1000 –

85 2604 2674 3112 (3212) *) 1304 (1404) *) 2278 2000 x 1000 –

*) the dimensions within brackets are for an inlet in the top panel. **) split casing version

**)


STING CATALOGUE

Components inside the casing

FilterSupply and extract airfilters made of glassfibre. Filter class F7(EU7).An easy-to-operateclamping device isused to press the filteragainst sealing strips inside thecasing.The complete filter wall can be pulledout to ease cleaning and changing of the filters.STING Top has so called extensible ultra compact filter.

Rotary heat exchangerThe rotary heat exchanger is used for recycling and transferring of heat (at summertime sometimes chilled air) and eventual moist out of exhaust air into the input air. The rota-ry heat exchanger is deliv-ered as an non-hygroscopic (only heat transferring)and as hygroscopic ( heat and moisture transferring). It is made out of aluminium, equipped with a purging sector, electronic speed control and Rotation monitor. Defrosting is not necessary with normal comfort ventilation. If the relative humidity of the exhaustair is higher than 30% and the outside temperature is less than -15 celsius there might be a risk of FREEZE UP. Check with Fläkt Woods if there is a need for defrosting.

Adjustment panelsFlow adjustment panels are supplied with the unit size 10-50 to create the correct pressure balance across the rotor so that purging air flow will pass in the right direc-tion. The panels should be placed upstream of the extract air filter, if their use is nec-essary.(Not STING Top).

Unit casingThe unit casing is made of double-skin galvanizedsheet steel with an intervening layer of insulationconsisting of 50 mm thick mineral wool; sturdy longi-tudinal edge sections.Service doors with adjustable hinges, handle andlock for access to fans and filters.Unit size 10-20 is supplied with stable base feet.Unit sizes 30-85 are supplied with base frame.

•EnvironmentalClass:Thecasingconforms to Class C3

•TightnesstoCENClassL3 •TensilestrengthtoCENClassD2 •ThermalinsulationtoCENClassT3 •CondensationinsulationtoCENClassTB3

Unit Description – Design

Size 10-20

Size 30-85


STING CATALOGUE

FanThe STING fans have been selected with focus on their best all-round economy. The size 10 units have double-inlet centrifugal fans with forward-curved blades. This allows for a very short unit; and this is advantageous where space for installation is limited.The size 20-85 units have newly developed efficient Centriflow Plus plug fans that offer up to 77% efficien-cy. The fans are driven by efficient motors that make the air handling units extremely energy-saving.The speed of the fans is variably controlled by means of integral or EC-motors. Connections

The duct mountings fitted on the circular with a rub-ber ring and the rectangular with PG joint.The size 20-85 units can be ordered with fan and/or filter inlet for upward discharge/suction, respectively. To be specified when ordering.For the size 20-85 units, it is possible to connect exter-nal functional sections such as an air heater or cooler, silencers, etc., directly to the air handling unit.

Unit Description – Design

Environmental DeclarationMaterials that are part of the unit Material Quantity Reusable Recyclable Energy recyclable Refuse material material material material

Metals 91 % x

Polymer materials 2.5 % x x

Mineral wool insulation 6 % x

Other 0.5 % x

Size 20-85

Size 10 Size 20-35


STING CATALOGUE

Fan performance chartThe chart is intended for use as a general survey chart. Precise data can be obtained in our air handling unit selection program, ACON. The diagram shows avail-able external pressure drops for duct systems and external functional sections. It can be used on both the supply air and the extract air sides and is valid for the dimensioning pressure drop of the filter.TheindicatedsoundpowerlevelindB(A)referstonoise in the ducting on the fans exhaust side.The SFPv figures have been calculated according to themethod described in Swedish Association of Air Han-dlingIndustriesPublication1995:1(Revised2000edition), i.e. the pressure drop of clean filters and thebalancing pressure are included. The figures require that even the air flow and external pressure drop is the same on both the supply air and the extract air sides.

Technical data, size 10

Dimensions, Weights and Electrical Specifications

Unit viewed from the rear.

Electrical specifications Unit weight Filter

Size 10

Integral motor Electrical connections Total (kg) Type (mm) Filter length (mm) Direct-driven 3 x 400 VAC, centrifugal

IP 55 50/60 Hz

238

1 pc 592 x 287 300

fan with forward- max 16 A (25 A) *, curved blades max 4 mm2

*) The unit can also be wired to a single-phase 230 V supply.

0.1 0.2 0.3 0.4 0.5 0.6 0.750

100

200

500

1000

1400

1000 1500 2000 2500qv

m3/h

m3/s

∆p

exte

rn,

Pa

STING-1

06-18-2004 / STING17D.FIL

3310 3138

2861

2559

2279

2001

r/min

LwA,dB 75 80 85

2.5

2

SFPv

3

40 Hz

50 Hz

35 Hz

55 Hz 58 Hz

45 Hz

Centrifugal fan

Exte

rnal

, Pa


STING CATALOGUE

Fan performance chartThe chart is intended for use as a general survey chart. Precise data can be obtained in our air handling unit selection program, ACON. The chart shows for plenum fans with integral motor, available external pressure drops for duct systems and external functional sections. For plenum fans with EC motor the diagram shows available external pressure drop for “nude” fan.They can be used on both the supply air and the extract air sides and is used when dimensioning pressure drop of the filter.

Technical data, size 20 & 20 Top

Plenum fan with integral motor, 20 Plenum fan with EC-motor, 20 & 20 Top STING-20

03-31-2005 / STING20D.FIL

STING-20

03-31-2005 / STING20D.FIL

TheindicatedsoundpowerlevelindB(A)referstonoise in the ducting on the fans exhaust side.The SFPv figures have been calculated according to the method described in Swedish Association of Air HandlingIndustriesPublication1995:1(Revised2000edition), i.e. the pressure drop of clean filters and thebalancing pressure have been included in the calcula-tion. The figures require that even the air flow and external pressure drop is the same on both the supply air and the extract air sides.

GPEB-3-031STING storlek 20

2007-03-20/GPEB1031

Plenum fan with integral motor, 20 Top

Charts below shows available external pressure drops for duct systems and external functional sections.

Chart shows available external pressure drop for “nude” fan. When the fan is assembled in a air hand-ling unit a ”built in pressure loss” will arise.

Reduced air flow operation is alowable within the coloured area.

Exte

rnal

, Pa

Exte

rnal

, Pa


STING CATALOGUE


1600500

550

550

1076

150

1035

35

Dimensions, Weights and Electrical specifications, size 20 Top

Electrical specifications Unit weight (divided into blocks) Unit weight (hole) Filter

Storlek 20

EC-motor Electrical Fan/filter Filter length Top

Integral motor1) connection Total (kg) section (kg) Rotordel (kg) Total (kg) Type (mm) (mm)

3 x 400 VAC, 50/60 Hz Direct-driven

IP55 max 16 A 390 125 105 352 2 st 450 x 450 80 Plenum fan

(25 A)1), max 4 mm2

1) The unit can also be wired to a single-phase 230 V supply.Applies only for integral motors.

271

280 ø 400

494

Vy uppifrån

150

16005502)

5502)

5002)

1076

300518

35

40

Ø 400

500

288

Ø 400

293743

1036

500

288

Dimensions, Weights and Electrical specifications, size 20

Electrical specifications Unit weight (divided into blocks) Unit weight (hole) Filter

Size 20 EC-motor Electrical Fan/filter Filter length Integral motor1) connection Total (kg) section (kg) Rotordel (kg) Total (kg) Type (mm) (mm)

3 x 400 VAC, 50/60 Hz

Direct-driven IP55 max 16A 390 125 105 352 1 st 392 x 792 360

Plenum fan

(25 A)1), max 4 mm2

1) The unit can also be wired to a single-phase 230 V supply.Applies only for integral motors.

2) Applicable to the split version

Unit viewed from the rear.


STING CATALOGUE

GPEB-3-035/1,7 kWSTING storlek 30

0.2 0.4 0.6 0.8 1.0 1.2 1.450

100

200

500

1000

1100

3000 4000 5000qv

m3/h

m3/s

∆pex

tern

, Pa

STING-2

06-18-2004 / STING27D.FIL

2696

2594

2322

2040

1755

r/min

LwA,dB 78 82

86

2.5

2

SFPv

40 Hz

35 Hz

30 Hz

47 Hz

1.5

45 Hz

0.2 0.4 0.6 0.8 1.0 1.2 1.450

100

200

500

1000

1100

78L wAdB

82

86

2696

2594

2322

2040

1755

r/min

STING-30 TOP

2007-03-26/GPEB1035

qv

m3/s

∆p

exte

rn, P

a

2000 3000 4000 5000 m3/h

2.5

2

SFPv

1.5

40 Hz

35 Hz

30 Hz

47 Hz

45 Hz



Plenum fan with integral motor, 30 Plenum fan with EC-motor, 30 & 30 Top






Exte

rnal

, Pa

Exte

rnal

, Pa


STING CATALOGUE


Dimensions, Weights and Electrical specifications, size 30

View from above

Dimensions, Weights and Electrical specifications, size 30 Top

1900500

700

700

1225

150

1186

35

307

340 ø 500

572

1900500

700

700

20

1225

150

800

1186

195

400

35

400

105

720

Electrical specifications Unit weight Filter Storlek 30 EC-motor Electrical Fan-/filter- Rotor Filter Integral motor connections Total (kg) section (kg) section (kg) Type (mm) length (mm)

3 x 400 VAC, Direct-driven 50/60 Hz Plenum fan

IP55 max 16 A,

424 137 116 1 st 892 x 490 547 (380)1)

max 4 mm2


Size 30 EC-motor Electrical Fan-/filter- Rotor Filter

Top

Integral motor connections Total (kg) section (kg) section (kg) Type (mm) length (mm)


IP55 max 16 A,

424 137 116 2 st 520 x 520 80

max 4 mm2

1) If the unit has a top inlet, the filter is shorter than standard.


STING CATALOGUE

0.2 1 1.850

100

200

500

1000

1100

3000 5000qv

m3/h

m3/s

∆pex

tern

, Pa

STING-3

06-18-2004 / STING37D.FIL

1192

1490

1780

2061

2451 r/min

LwA,dB 80 84 88

2.5

2

SFPv

40 Hz

50 Hz

60 Hz

70 Hz

85 Hz

1.5

GPEB-3-040STING storlek 35

0.2 1 1.850

100

200

500

1000

1100

80L wAdB

84

88

1192

1490

1780

2061

2451 r/min

STING-35 TOP

2007-03-23/GPEB-1-040

qv

m3/s

∆p

exte

rn, P

a

3000 5000 m3/h

2.5

2

SFPv

1.5 40 Hz

50 Hz

60 Hz

70 Hz

85 Hz



Plenum fan with integral motor, 35 Plenum fan with EC-motor, 35 & 35 Top






Exte

rnal

, Pa

Exte

rnal

, Pa


STING CATALOGUE


Dimensions, Weights and Electrical Specifications, size 35

Dimensions, Weights and Electrical Specifications, size 35 Top

307

340 ø 500

572

1900500

700

700

1225

150

1186

35

1900500

700

700

20

1225

150

800

1186

195

400

35

400

105

720

Electrical specifications Unit weight Filter Size 35 EC-motor Electrical Fan-/filter- Rotor Filter Integral motor connections Total (kg) section (kg) section (kg) Type (mm) length (mm)


IP55 max 20 A,

442 146 116 1 st 892 x 490 547 (380)1)

max 4 mm2


Size 35 EC-motor Electrical Fan-/filter- Rotor Filter

Top

Integral motor connections Total (kg) section (kg) section (kg) Type (mm) length (mm)


IP55 max 20 A,

442 148 116 2 st 520 x 520 80

max 4 mm2

1) If the unit has a top inlet, the filter is shorter than standard.

View from above


STING CATALOGUE


Fan performance chartThe chart is intended for use as a general survey chart. Precise data can be obtained in our air handling unit selection program, ACON. The chart shows available external pressure drops for duct systems and external functional sections. This diagram shows available external pressure drop for the duct system and duct fitted components. It can be used on both the supply air and the extract air sides and is used when dimensioning pressure drop of the filter.TheindicatedsoundpowerlevelindB(A)referstonoise in the ducting on the fans exhaust side.The SFPv figures have been calculated according to themethod described in Swedish Association of Air Han-dlingIndustriesPublication1995:1(Revised2000edition), i.e. the pressure drop of clean filters and thebalancing pressure have been included in the calcula-tion. The figures require that even the air flow and external pressure drop is the same on both the supply air and the extract air sides.

0.4 1 2 2.450

100

200

500

1000

2000 4000 6000 8000qv

m3/h

m3/s

∆pex

tern

, Pa

STING-4

06-18-2004 / STING47D.FIL

1190

1488

1776

2053

2435 r/min

LwA,dB 80 84 88

92 2.5

2

SFPv

40 Hz

50 Hz

60 Hz

70 Hz

85 Hz

1.5

1400

Dimensions, Weights and Electrical Specifications Electrical specifications Unit weight Filter

Size 40

Integral motor Electrical connections Total (kg) Fan/filter section (kg) Rotor section (kg) Type (mm) Filter length (mm) Direct-driven

IP 55 3 x 400 VAC,

646 195 221

2 pc 592 x 592 547

Plenum fan 50/60 Hz max 25 A

Exte

rnal

, Pa

2200700

750

750

20

1475

150

1000

1436

220

500

35

500

120

855

Plenum fan with integral motor


STING CATALOGUE


Fan performance chartThe chart is intended for use as a general survey chart. Precise data can be obtained in our air handling unit selection program, ACON. The chart shows available external pressure drops for duct systems and external functional sections. This diagram shows available ex-ternal pressure drop for the duct system and duct fit-ted components. It can be used on both the supply air and the extract air sides and is used when dimension-ing pressure drop of the filter.TheindicatedsoundpowerlevelindB(A)referstonoise in the ducting on the fans exhaust side.The SFPv figures have been calculated according to themethod described in Swedish Association of Air Han-dlingIndustriesPublication1995:1(Revised2000edition), i.e. the pressure drop of clean filters and thebalancing pressure have been included in the calcula-tion. The figures require that even the air flow and external pressure drop is the same on both the supply air and the extract air sides.

0.5 1 1.5 2 3 3.550

100

200

500

1000

1100

6000 8000 10000 12000qv

m3/h

m3/s

∆pex

tern

, Pa

STING-5

06-18-2004 / STING57D.FIL

1740

1609

1471

1323

1172

1022

r/min

LwA,dB 80 84 88

2.5

2

SFPv 40 Hz

50 Hz

55 Hz

60 Hz

35 Hz

1.5

45 Hz

Dimensions, Weights and Electrical Specifications Electrical specifications Unit weight Filter

Size 50

Integral motor Electrical connections Total (kg) Fan/filter section (kg) Rotor section (kg) Type (mm) Filter length (mm) Direct-driven

IP 55 3 x 400 VAC,

858 270 273 2 pc 592 x 592 547

Plenum fan 50/60 Hz max 25 A 1 pc 287 x 592

Exte

rnal

, Pa

2400700

850

850

20

1775

150

1200

1736

270

600

35

600

145

1030



STING CATALOGUE


Fan performance chartThe chart is intended for use as a general survey chart. Precise data can be obtained in our air handling unit selection program, ACON. The chart shows available external pressure drops for duct systems and external functional sections. This diagram shows available ex-ternal pressure drop for the duct system and duct fit-ted components. It can be used on both the supply air and the extract air sides and is used when dimension-ing pressure drop of the filter.TheindicatedsoundpowerlevelindB(A)referstonoise in the ducting on the fans exhaust side.The SFPv figures have been calculated according to themethod described in Swedish Association of Air Han-dlingIndustriesPublication1995:1(Revised2000edition), i.e. the pressure drop of clean filters and thebalancing pressure have been included in the calcula-tion. The figures require that even the air flow and external pressure drop is the same on both the supply air and the extract air sides.

1 1.5 2 3 4 5 650

100

200

500

1000

1200

1400

qvm3/h

m3/s

pex

tern

, Pa

STING-65

09-23-2005 / STING65D.FIL

6000 10000 14000 18000qv

m3/h

m3/s

∆p

exte

rn, Pa

STING-65

1470

1305

1160

1015

870

r/min

LwA,dB 80 84 88 92

2.5

2

SFPv

1.5

40 Hz

51 Hz

35 Hz

30 Hz

45 Hz

Dimensions, Weights and Electrical Specifications Electrical specification Unit weight [divided into blocks] Unit weight (hole) Filter

Size 65

Integral motor Total (kg) Total (kg) Type (mm) Filter length (mm) Direct-driven

IP 55 3 x 400 VAC,

1441 506 429

1373 3 pc 592 x 592 547

Plenum fan 50/60 Hz max 45 A 3 pc 287 x 592

Exte

rnal

, Pa

Electrical connections

Fan/filter section [kg]

Rotor section [kg]

2712

5041104

1104

137

1600

800

1137

800



STING CATALOGUE



1.5 2 3 4 5 6 7 7.550

100

200

500

1000

1200

qvm3/h

m3/s

∆p

exte

rn, Pa

STING-80

09-23-2005 / STING80D.FIL

8000 12000 16000 20000 24000qv

m3/h

m3/s

pex

tern

, Pa

STING-80

09-23-2005 / STING80D.FIL

1235

1162

1016

871

726

r/min

LwA,dB 80 84 88

2.5

2

SFPv

1.5

40 Hz

35 Hz

30 Hz

43 Hz

25 Hz

Dimensions, Weights and Electrical Specifications Electrical specification Unit weight [divided into blocks] Unit weight (hole) Filter

Size 80

Integral motor Total (kg) Total (kg) Type (mm) Filter length (mm) Direct-driven

IP 55 3 x 400 VAC,

2230 735 760

2150

8 pc 592 x 592 547

Plenum fan 50/60 Hz max 45 A

*) The dimensions within brackets apply to inlets in the top panel.

Exte

rnal

, Pa



Rotor section [kg]

2912 (3112) *) 504

1204

(1404) *)

1204

2674

202

2000 2604

10

00

1

48

7

10

00

1

87



STING CATALOGUE



3112 (3212) *) 504

1304

(1404) *)

1304

2674

302

2000 2604

1000

1487

1000

187

1.5 2 3 4 5 6 7 8 950

100

200

500

1000

1200

1400

1600

qvm3/h

m3/s

pex

tern

, Pa

STING-85

09-23-2005 / STING85D.FIL

8000 12000 16000 20000 24000 28000 32000qv

m3/h

m3/s

∆p

exte

rn, Pa

STING-85

09-23-2005 / STING85D.FIL

1398

1307

1162

1016

871

726

r/min

LwA,dB 80 84 88 92

40 Hz

25 Hz

35 Hz

30 Hz

48 Hz

45 Hz

2.5

2

SFPv

1.5

Dimensions, Weights and Electrical Specifications Electrical specifications Unit weight [divided into blocks] Unit weight (hole) Filter Size 85 Total (kg) Total (kg) Type (mm) Filter length (mm)

Direct-driven IP 55 3 x 400 VAC, 2278 759 760 2198 8 pc 592 x 592 547 Plenum fan 50/60 Hz max 63 A

*) The dimensions within brackets apply to inlets in the top panel.

Motor with frequency inverter

Exte

rnal

, Pa



Rotor section [kg]



STING CATALOGUE

DescriptionThe ETKC cooling unit is a complete unit section, which is fully installed in the EC air handling unit. The cooling unit is available in seven sizes for air flowsranging from 0.6 to 8.0 m3/s. The cooling unit is cost effective, environment friendly and easy to use. The cooling unit is a reliable, high quality product which is simple to engineer and install, and requires a mod-est amount of service.The cooling unit has the same casing and frame as other unit sections, and has an evaporator and con-denser with copper tubing and aluminium fins.The cooling unit cools the supply air by means of type R407C refrigerant. The supply air is cooled by an air cooler (evaporator) in which the heat is absorbed by the refrigerant which then transfers the heat to the condenser. The condenser is located in the exhaust air flow path. The heat from the supply air is thus transferred to the exhaust air. The cooling unit can be equipped with a water-cooled condenser connected upstream of the ordinary air-cooled condenser and in series with it. The water-cooled condenser is cooled by means of mains water.

Thefunctionofthewater-cooledcondenseris:– to allow for heat recovery for heating the domestic

hot water, for instance– to allow for operation with an exhaust air flow

which is lower than the supply air flow– to safeguard the performance of the cooling unit

even at extremely high outdoor temperatures.

The water-cooled condenser is an option which is integrated into the unit at the factory. It is equipped with a water connection and water-saving valve. The water cooled condenser has sufficient capacity

to handle about 50% of the total condenser rating of the corresponding output variant. The water-cooled condenser must be connected to the mains water supply (cold water) and drain. The condenser is self-regulating and provides cooling when the condensa-tion temperature is higher than the preset set point. No adjustments need be made.

LocationThe cooling unit should be located so that the con-denser is always nearest to and upstream of the ex-haust air fan. See Figure.

Technical dataThe cooling unit is controlled by an external 0–10 V control signal. The cooling unit contains 2 or 3 com-pressors, depending on the unit size, and these are switched in three output stages. Detailed particulars are given under each size.If the cooling unit is equipped with a water-cooled condenser, this is switched in as necessary. A me-chanical pressure-controlled water-saving valve, which senses the condensation pressure, opens to ad-mit cooling water to the water-cooled condenser

Project designIn the project design work, it is normally assumed that the exhaust air flow is higher than or equal to the supply air flow, in order to guarantee satisfac-tory cooling of the condenser. The product selection computer program is used for more accurate project design work.The cooling unit is designed for outdoor air tempera-tures between +20 °C – +32 °C and a min. supply air temperature of +12 °C. The lowest permissible air flow is specified below each unit size.The cooling unit is not suitable for use in conjunction with supply air temperature control.

Cooling – ETKC Cooler


STING CATALOGUE


Size Capacity Rated Rated Rec. Rated Rec. Circuit Circuit Circuit Circuit Total (a) Variant Cooling Input fuse Input fuse 1 2 3 4 (c) power (kW) current (A) (A) current (A) (A)

20 2 13 8,2 16 19 25 1 1 2

20 3 18 11,2 16 23 32 1 2 3

30 1 13 8,2 16 19 25 1 2 3

30 2 18 11,2 16 23 32 1 2 3

30 3 26 16,2 20 33 40 2 3 5

35 1 13 8,2 16 19 25 1 2 3

35 2 18 11,2 16 23 32 1 2 3

35 3 26 16,2 20 33 40 2 3 5

40 1 18 11,2 16 50 63 2 3 5

40 2 26 16,2 20 33 40 2 3 5

40 3 43 24,6 35 50 63 3 4 7

50 1 43 26,2 35 83 100 4 5 9

50 2 56 32,9 50 67 80 4 5 9

50 3 68 41,6 50 83 100 5 7 12

65 1 56 32,9 50 67 80 5 6 12

65 2 68 41,6 63 83 100 5 6 12

65 3 91 55,8 63 112 125 5 5 5 16

80 1 92 55,8 63 103 125 7 7 7 21

80 2 138 81,0 100 N.A. N.A. 7 7 7 21

80 3 183 97,4 125 N.A. N.A. 9 9 9 27

85 1 92 55,8 63 103 125 7 7 7 21

85 2 138 81,0 100 N.A. N.A. 7 7 7 21

85 3 183 97,4 125 N.A. N.A. 7 7 7 7 27

3 x 400 V Approximate Refrigerant charge, kg

Constructions data

Dimensions and weights

3 x 230 V

Sting Difference in width Length Difference in height Output variant 1 Output variant 2 Output variant 3 Min. flow Size (mm) (mm) (mm) Weight (kg) Weight (kg) Weight (kg) m3/s

10 - - - - - - -

20 +268 +1074 +1 - 198 213 0,3

30 +318 +1074 +1 221 226 252 0,5

35 +318 +1074 +1 221 226 252 0,5

40 +4181) +1074 +1 258 268 346 0,7

50 +450 +1074 +101 299 356 463 1,2

65 +450 +1074 +1 441 504 643 1,6

80 +450 +1074 +74 1064 2009 1292 3,3

85 +450 +1074 +74 1064 2009 1292 3,3

1) At output variant 3 and 230 V (Norwegian version)


STING CATALOGUE

Description of operation, two compressors

OperationThe cooling unit is started and stopped by an ex-ternal 0–10 V control signal. When the first cooling stageistostart,thesolenoidvalve(MV:1)willfirstopen.Thelowpressurepressureswitch(GP2:1)closes on an increase in evaporator pressure, and thecontrollerwillthenstartthecompressor(KK:1),depending on the control signal. In order to switch out each cooling stage, the controller closes the sole-noidvalve(MV:x),andtherefrigerantwillthenbedrawn out of the evaporator to the condenser, and the compressor will stop when the low-pressure in-servicepressureswitch(GP2:x)hastripped.GP2:xhas automatic reset.After a compressor has stopped, a restarting delay of 5 min will be switched in.

Survey of ComponentsSymbols usedEV:1, EV:2, EV:3 = EvaporatorFT:1, FT:2, FT3 = Filter-dryerGP1:1, GP1:2, GP1:3 = Protective pressure switch - high pressureGP1 a:1 = In-service pressure switch - high pressureGP2:1, GP2:2, GP2:3 = In-service pressure switch - low pressureKD:1, KD:2, KD:3 = CondenserKD-W = Water-cooled condenser (option)KK:1, KK:2, KK:3 = CompressorMU1:1, MU1:2, MU1:3 = Measurement tapping – high pressure MU2:1, MU2:2, MU2:3 = Measurement tapping – low pressureMV:1, MV:2, MV:3 = Solenoid valveRK = Refrigerant receiverSG:1, SG:2, SG:3 = Sight glassSÄV = Safety valveVAA:1, VAA:2, VAA:3 = Shut-off valve - low pressureVAB:1, VAB:2, VAB:3 = Shut-off valve - high pressureVAC:1, VAC:2, VAC:3 = Shut-off valveVAD:1, VAD:2 = Shut-off valveVAE:1, VAE:2 = Shut-off valveVS:1, VS:2, VS:3 = Expansion valveVW = Pressure-controlled water-saving valve (op-

tion)x = Circuit 1, 2 or 3

VW

KD-W

Cold water inlet

1) Option: code suffix -d Water-cooled condenser


Fan section

Fan section

Water-cooled condenser 1)

Design pressure: 29.3 bar (e) = effectiveTest pressure: 33.0 bar (e) = effective

Direction of flow

Applicable to ECKA-08 only


STING CATALOGUE

Inkommandematning 3x400VAnsluts på huvudbrytarei kylenhet.

L1

L2 L3

N

PE PE

PE

N

QO1.6

QO1.4

QO1.2

Utgående summalarm (slutning vid larm)

58 NO

57 C 2

1

2

PE PE

1

2

3

PE

1

2

3

4 4

PE

1

PE

54

53 2

1

2

PE PE

1 C

NC

PE

56

55 2

1

2

PE PE

1 C

NO

52

51 2

1

2 0-10V

1 +

–

Förregling över ev. utetermostat, GT (annars byglas)

Förregling över frånluftsfläkt

0-10V DC styrsignal

Electrical connectionsCheck that the power supply to the cooling unit is iso-lated at the main circuit breaker. The electrical connec-tions are made at the main circuit breaker located on the control panel or on the outside of the unit.Important note! The cable glands supplied must be used to achieve the correct enclosure class. The direc-tion of rotation of the compressors is dependent on the phase sequence. Phase error relays are included in the control panel and a error signal is displayed on the PLCscreenshouldtheincomingpowerbeincorrectlyphase sequenced.


Power supply:3 x 400 VTo be connected on the main circuit break-er on the control panel on the Cooler

Groupe alarm output signal

Interlock from outdoor sensor, if any, GT

Interlock from extract fan

0-10 V DC control signal from external controller

Wiring diagram

The alarm circuit of the unit provides a group alarm signal, which can be connected to an external control-ler. This group alarm can be obtained as potential-free contacts at pins 57, 58 at the terminal board. To pre-vent unnecessary stops and alarms from the cooling unit, it should be interlocked from the extract air fan FF. Connect the unit as shown in the diagram below.


STING CATALOGUE

ControlThe external control signal should be adapted to suit a minimum temperature sensor (minimum temperature limiter) located in the supply air duct, as far as pos-sible from the unit, but upstream of the first supply air device, and a temperature sensor located in the premises or in the exhaust air stream. The cooling unit controller includes an input for controlling with the exhaust air fan and outdoor sensor as interlocks.

Overheating of the condenser (KD)If the condenser heat cannot be absorbed by the ex-haust air and the condensation temperature rises to approx. 57 °C (corresponds to an exhaust air tem-peratureofapprox.53-55°CdownstreamofKD:x),GP1a:1(highpressurein-servicepressureswitch)willstopcompressorKK:1inordertoreducetheload.Ifthe condensation temperature should increase to the maximumpermissible(+65°C),GP1:xwillstopthecorresponding compressor and an alarm will be initi-ated.GP1:xhasmanualreset.

AlarmThe cooling unit has a group alarm for motor protec-tion, phase sequence, 3-phase indicator, high and low pressure alarms. The high pressure switch is reset by pressing the ”button” on the appropriate pressure switchGP1:x.afterappropriatecorrectiveaction.If necessary, reset the motor protection breakers. Trip the power supply and then switch it back on again at the main circuit breaker in order to reset the control-ler. The group alarm can be connected to an external controllerorBMS

Water-cooled condenser (KD-W)The water-cooled condenser is used for heat recovery or when the exhaust air flow rate is too low for cool-ing the refrigerant upstream of the air-cooled con-denser (it should therefore be located upstream of the ordinary air-cooled condenser in refrigerant circuit 2 if the system has 2 circuits or in refrigerant circuit 3 if the system has 3 circuits). The water-cooled condenser KD-W is equipped with a pressure-controlled water-saving valve VW, which enables the condenser to come into service automatically to cool whenever the need arises.SizingThe project design work on the cooling unit is basical-ly the same as that for other unit sections. The cooling unit is fully integrated into the Sting and is equipped with complete control equipment.The following information is necessary for selecting theappropriateoutputvariantofthecoolingunit:Manual sizing presupposes knowledge on how a

Mollier Chart is used. For simple and quick sizing usetheStingCOOLERproductselectionprogram.For optimum performance of the cooling unit, the exhaust flow rate should be the same or higher than the supply air flow rate. If they are not, check that the condensation temperature t1 is <57 °C when the unit is operating at maximum capacity

Necessary information for sizingOutdoor air temperature ............................................ °CRelative humidity .......................................................... %Supply air flow ....................................................... m3/sExhaust air flow ...................................................... m3/sExhaust air temperature(upstream of the cooling unit .................................... °C

Connection of KD-W water-cooled con-denser to mains water supplyIf the cooling unit is equipped with a water-cooled condenser, it must be connected to a mains water sup-ply having a min. pressure of 50 kPa and max. pres-sureof1000kPa(0.5–10Bar).

Important! The water must flow through the con-denser in the flow direction specified in order to ob-tain the best efficiency.

The water-cooled condenser includes a factory-adjust-ed water-saving valve that regulates the water flow through the condenser. The inlet mains water flow must not be shut off.

Important! If the unit is located outdoors, a heating medium containing a suitable mixture of anti-freeze agent must always be used.



STING CATALOGUE

To enable you to access to the program, you need a user ID and a password.You can obtain these by contacting our nearest sales representative.To find the nearest sales representative, visit out

home page at www.flaktwoods.com.

Unit Sizing via the WebAirhandlingconfiguration - ACON is the name of the new generation of web-based product selection programs. With ACON, the STING can be sized quickly and easily. The program offers an air han-dling unit specification and all the facts needed, such as dimensions, efficiencies, acoustic levels, etc. The program also provides product specific documentation concerning installation, mounting and maintenance.

•Youalwaysworkwiththelatestversionofthesoftware

•Requiresnoinstallation•AlwaysavailableontheInternet•Fanperformancecurveswithdutypoints,etc.•TheunitdrawingcanbeexportedtoCAD•Youobtaincurrentdeliverytimesfromtheor-

dering function.

Sizing


STING CATALOGUE

GeneralThe control equipment for the STING is developed with focus on making it simple to install, easy to use and easy to supervise.

The control equipment can be supplied in two ver-sions. The air handling unit can be delivered in two versions:oneversionisdeliveredcompletewithmicroprosessor and all the necessary equipment sup-plied with the unit, and the other version is delivered with a terminal block solution inwhich the air han-dling unit is supplied without controlunit and sensors, though with fan drive equipment androtary heat ex-changer wired to a terminal block inter-face.The control equipment is supplied for a 3 x 400 VAC,50 Hz, 5-conductor system.

Controls

Control equipment with display

Installation

If it is desirable to switch from right-hand to left-handconfiguration or vice versa, it is easy to adapt the con-trol equipment for this switch. If it becomes necessary to split the air handling unit for transport to thebuilding’s plant room, the quick connectors usedsimplify unit division into blocks. The most commonexternal components are supplied with all the neces-sary wiring for connection via quick connector to theappropriate socket in the electrical equipment cubicle.

Operation

The STING is supplied as standard with control unitand this includes a control panel for operating the airhandling unit. All the functions are displayed in plaintext. All the settings can be entered and readings can beviewed via the control panel.


STING CATALOGUE

Component explanationCP1 Circulation pump, air heatingCP2 Circulation pump, air coolingFF1 Extract air fanTF1 Supply air fanU1 Integral motor, supply air fanU2 Integral motor, extract air fanKM1 CoolerGT1 Supply air temperature sensorGT2 Room temperature sensorGT3 Outside air temperature sensor

GT5 Frost protection sensorGT6 Overheating electric air heater

sensorGT7 Thermostat, electric air heaterGT12 Duct sensor, extract air controlGF1 Flow transmitter, supply airGF2 Flow transmitter, extract airGP5 Pressure transmitter, supply airGP6 Pressure transmitter, extract airGN1 Presence detector

GS1 Rotation sensorST1 Damper actuator, outside airST2 Damper actuator, extract airSV1 Valve actuator, air heaterSV2 Valve actuator, air coolerSK1 Step controller, electric air

heaterSU1 Timer/push-buttonVVX Control unit, rotary heat

exchanger

Flow chart

Technical data •Controlcircuitforpumps,max2A(notapplicabletoterminalblocksolution).•Auxiliarytransformerfor24VAC(notapplicabletoterminalblocksolution).•Integralmotorsforfanoperation.•Speedcontrollerforregulatingthespeedoftheheatexchangerrotor.•Timeswitchfor24-hour/one-weekoperationincorporatedintothecontrolunit.Batterybackupfor72-hour

power failure (not applicable to terminal block solution). The air handling unit is equipped with a system of quick connectors for connecting the peripheral equipment in the immediate vicinity of the STING; damper actuators, sensors, valve actuators, display for the control unit, RJ-45 (Ethernet)1) and serial communication, RS232 (not applicable to terminal block solution). The STING models that are divided into blocks are also equipped with quick connectors for simple installation.

Controls

Flow Chart for air handling units without controller


STING CATALOGUE

Connection data Electrical data: The power supply is connected to theunit via the junction box on top of the unit. The main switch is situated in the control panel. The power supply cable must be fitted with an external load interrupter that is capable of opening the supply to the entire air handling unit. Load interrupters are available as accessories.The air handling unit must be supplied with 3-phase,400 V AC 50/60 Hz. Size 10 and 20 can be connected to 1-phase 230 V.Recommended short-circuit protection is tabulated below. TestingEvery unit is isolation and performance tested prior todelivery. The insulation and performance of the control equipment in each air handling unit is tested before de-livery.

Environmental demandsPermissible ambient temperature range while the unitis operating: 0 –40 °C.

StandardsThe cubicle with control equipment complies with the following standards and regulations:EU Machinery Directive 98/37/EG, electrical equip-ment in machinery, EN 60204-1.EMC Directive: 89/336/EEC, EN 61800-3 (Emissions EN61000-6-3:2001and Immunity EN61000-6-2:2001)Low Voltage Directive 72/23/EEC[DF2], (EN50178).

TransformerTo enable the use of STING units in Norway, where3-phase 400 V power isn’t available, a transformer thatconverts 3-phase 230V power till 3-phase 400V + N isrequired. Norway: 3-phase 230 V for indirectly earthed (IT) mains power supply.

Controls

Size Power Voltage Constant current1) Rec.1) STYZ-39 kVA Trafo kW V A Fuse, AT A kVA

10 2x1.4 1x230 26,3 32 32 6,512,5

10 2x1.4 3x400 <9,9 16 16

20 2x1.4 1x230 26,3 32 32 6,4 12,5

20 2x1.4 3x400 <9,7 16 16

30 2x1.5 3x230 21,3 40 45 8,5 12,5

30 2x1.5 3x400 12,9 16 16

35 2x2.2 3x230 25,9 50 63 10,3 16

35 2x2.2 3x400 15,7 20 25

40 2x4.0 3x230 36,8 50 63 14,7 16

40 2x4.0 3x400 22,3 25 25

50 2x4.0 3x230 36,8 80 80 14,7 20

50 2x4.0 3x400 22,3 25 25

65,80 2x7.5 3x230 61,6 100 125 24,6 25

65,80 2x7.5 3x400 37,3 45 45

85 2x11 3x230 91,0 160 160 34,4 40

85 2x11 3x400 52,3 63 63

Fuse and fuse load interrupter (STYZ-39)Integral motor

6,5 12,5

6,4 12,5

8,5 12,5

10,3 16

14,7 16

14,7 20

24,6 25

34,4 40

1) Magnetising of the transformer at 3 x 230 V has been taken into consideration.

EC-motorSize Power Voltage Constant current*) Rec.*) STYZ-39 kVA Trafo kW V A Fuse, AT A kVA

20 2x1.7 3x230 26,3 32 32 6,512,5

20 2x1.7 3x400 <9,7 16 16

30 2x1.7 3x230 21,3 40 45 6,4 12,5

30 2x1.7 3x400 12,9 16 16

35 2x3.0 3x230 25,9 50 63 8,5 12,5

35 2x3.0 3x400 15,7 20 25

6,4 12,5

8,5 12,5

10,3 16


STING CATALOGUE

Speed control

Flow controlThe preset values for the supply air fan and the extractair fan are set using the control panel. Two preset values for each fan make switching fan speed possibleusing a time switch, timer, push-button, presence detector or via a preset comfort control.Function:Tokeepaconstantflowintheductsystem.

Pressure controlThe preset values for the supply air fan and the extractair fan are set using the control panel. Two presetvalues for each fan make switching fan speed possibleusing a time switch, timer, push-button, presencedetector or via a preset comfort control.Function:Tokeepaconstantpressureintheductsystem. NB! It is not possible to supply the unit with pressure

control on one fan and flow control on the other.

Prolonged or forced operation Via timer, push-button or presence detector.

Timer, low speed for fitting externally or recessed.Setting:0-2hours.Function:Tostarttheunitatlowspeedorswitchoverto low speed when running high speed.

Timer, high speed for fitting externally or recessed.Setting:0-2hours.Function:Tostarttheunitathighspeedorswitchover to high speed when running low speed.

Presence detector for mounting externally. Delaysetting:2-15minutes.Function:Tostarteitherhighorlowspeedaccordingto the timer function high or low speed.

To set the integral motors The integral motors of the supply air fan and the extractair fan have been preset prior to delivery.Air flow/pressure set point corrections can be enteredvia the control panel of the control unit. Air handlingunits ordered and supplied without control unit haveterminal blocks inside the electrical equipment cubiclefor start signals (potential-free) control signals (0-10 V)and in-operation indicating signals. Temperature controlThe following methods of temperature control areavailable:

Supply air temperature control Function:keepsthesupplyairtemperatureconstantatthe set point setting.

Extract air control Function:keepstheextractairtemperatureconstantatthe preset value through cascade control of the supplyair temperature with max/min limiting.

Room control Function:keepsroomtemperatureconstantatthepreset value through cascade control of the supply airtemperature with max/min limiting.

Controls

Full transformerThe full transformer must be used at locations with net-work structure of type IT (indirectly earthed). The trans-former forms a TN system on its secondary side which means that no modification from the Swedish version is required.

Primary protectionThe transformer must be equipped with primary pro tec-tion. The primary protection consists of a conventional micro circuit breaker that is connected to the incoming supply to the transformer on the 230 V side to protect the same against overloading. No micro circuit breaker is supplied by us. The electrical contractor should pro-vide the necessary equipment.

StandardsThe transformers comply with the following standards andregulations:LowVoltageDirective:LVD73/23/EEC,93/68/EECEN61558-2-4:1997EMC Directive 89/336/EEC, 91/263/EECEN61000-3-2:1995,EN61000-3-3:1995 Enclosure The transformer is supplied enclosed in a standard sheet-metal casing to IP23, max. permissible ambienttemperature:30°C.


STING CATALOGUE

Flow compensation

Conventional sequential control

The heat exchanger will start if heat is necessary, theheater starts when full heat recovery is given and heatis required. When both the heat exchanger and theheater are at maximum effect and there is a need forextra heat the supply air temperature will drop. Thiscan be prevented with comfort control. Summer / winter compensated flow /pressure (STYZ-01, h=2)One way to prevent a temperature drop in a room isto reduce the flow / pressure when the outdoortemperature drops.To prevent a temperature increase in a room the flow/ pressure is increased when the outdoor temperatureincreases. The preset values for flow / pressureare adjusted independently with the help of a fourpoint graph coupled to the outdoor temperature ifthe heat exchanger and heater gives full effect.Regulating fan speed on both fans is done to preventnegative pressure in the building.Setting:Adjustthefourpointbreakpointsalsothemax and min flow / pressure using the control unit.

Outdoor temperature controlled fan speed(STYZ-01, h=1)Asimple way of preventing temperature drop in aroom is to prevent forced fan operation when theoutdoor temperature drops below the preset value.Setting:Adjustthebreakpointforoutdoortempera-tures using the control unit.

Comfort control (Heat exchanger- heatflow reduction)(STYZ-01, h=5)It is advantageous to utilize this function in places withextremely low outdoor temperatures. When theoutdoor temperature is so low that even with full heatrecovery and full effect on heating, more heat isrequired, the fan speed is decreased so that the desiredsupply air temperature is obtained.Adjusting fan speed on both fans is done to preventnegative pressure in the building.Setting:Adjustthemaximumflow/pressurelimitusing the control unit.

Controls

120Fu

Fn

Fl

Tlw Tuw Tls Tus

110

10090

80

-30 -20 -10 0 10 20 30

Relative flow / pressure (100% = preset value)

°C Out-door tempera-ture

%

Fu Flow compensation, upper limitFn Flow, normalFl Flow compensation, lower limit

Tlw Temperature break point, lower winter limitTuw Temperature break point, upper winter limitTls Temperature break point, lower summer limitTus Temperature break point, upper summer limit

CoolerEnergy recoveryHeater

– +Outdoor air temperature

Flow / control signal

CoolerEnergy recoveryHeaterChange in flow

Flow / control signal

– +Outdoor air temperature


STING CATALOGUE

Other – Night-time ventilation

Nightpurging (Night free cooling)The nightpurging setting is used during the summerperiod. Cool outdoor night air is used to cool the roomduring the night. Used outside the ordinary operatingperiod.Function:Startstheunittocooltheroomwithfreshairwhen the room temperature and outside temperatureexceed the preset values and the difference betweenthese values exceeds the preset difference. Cooler is notactivated.

Unoccupied heating modeUnoccupied heating mode is used to prevent the roomtemperature dropping too much outside ordinary oper-ating time.Function:Startstheunitforfullheatrecoveryandopensfor full effect from air heater if room temperature dropsbelow the preset value. Cooling recoveryFunction:Startstherotaryheatexchangerforfullrecovery for cooling the outdoor air when the extract air temperature is lower than the outdoor temperature andcooling is necessary.

Outdoor temperature compensation(Summer and winter compensation)Function:Offsetsthepresetvalueforsupplyair,extractair or room temperature.

External components

Control of air heaterControlsignal:0-10Vforvalveactuatorsorforelectricairheaters with built-in thyristor and stepping switch, ifused.Freezeprotectiondevice:Whentheairhandlingisn’toperating, the water temperature is kept constant at 25 °C. When the unit is operating, in response to controlsignals the valve regulates the water flow so that thereturn temperature won’t drop below 12 °C. Should thewater temperature drop below 7 °C, the control unit willstop the air handling unit and initiate an alarm.

Circulation pump for air heaterMaxpermissiblecurrent:approx2A,1-phase,230V.Thecontrol unit is programmed to exercise the pump when-ever the unit isn’t operating. The design of the pumpprevents it from clogging. Should the built-in thermo-contact trip, it will initiate an alarm. Valve actuator for air heaterThe valve actuators are designed for a valve for 5.5 mmheight of lift and G 3/4” threaded connections. Control of air cooler Controlsignal:0-10Vforaircoolersforchilledwater.Control signal for coolers for direct expansion, DX,normally-open contacts or 0-10V signals.

Circulation pump for air coolerMaxpermissiblecurrent:approx2A,1-phase,230V.Thedesign of the pump prevents it from clogging. Shouldthe built-in thermo-contact trip, it will initiate an alarm. Valve actuator for air coolerThe valve actuators are designed for a valve for 5.5 mmheight of lift and G 3/4” threaded connections.

Controls

Tlw

TowTos

Tuw Tls Tus

-5

5

0

30-20 -10 0 10 20

Relative temperature preset value

°C Out-door tempera-tureTow Temperature preset value, offset, winter

Tos Temperature preset value, offset, summerTLS Temperature break point, lower winter limitTuw Temperature break point, upper winter limitTlw Temperature break point, lower summer limitTus Temperature break point, upper summer limit

°C


STING CATALOGUE

Fire/smoke controller Afire/smoke controller can be wired to the unit.Operation: Stops the air handling unit and initiates agroup alarm.The fire dampers are exercised every 48 hours.

Control and monitoring unit for fire/ fire gasThe unit is incorporated into a plastic enclosure with aglazed front panel that conforms to Enclosure ClassIP66 and is CE labelled.In the event of a tripped alarm, the air handling unitwill shut down.

Technical Data:• Damper blade position indicator• Detector indication of service alarms/tripped detec-

tor/malfunction alarms• Automatic performance test• Group alarm• Reset button• Performance test button• I nput for signals from external fire alarm equipment• Output for controlling the combustion gas fan• 24 V AC power supply to damper actuator• Permissible ambient temperature range: 0 °C to +30 °C• Voltage measurement in the unit, 230 V AC. Operation: The air handling unit will be interlocked if the airhandling unit’s group alarm is wired to the appropriateterminal inside the unit cubicle. The air handling unitfans will stop when an alarm is initiated.

Junction box for fire/fire gas damperThe junction box makes it easier to route wiring to thecontrol and monitoring unit. Technical Data• Power supply: Designed for 24 V AC actuators.• Enclosure Class: IP54• Permissible ambient temperature range: -30 °C to

+70 °C• Inputs (max. cable cross-sectional area of 2. 5 mm 2)• Heat detector input, opens the circui,t potential free,

in the event of a malfunction.• Dimensions: 85 x 85 x 38 mm (W x H x D)Smoke detectorThe smoke detector is of a make with ionizing actionfor connection to the control and monitoring unit.The smoke detector is designed for duct installation.The insertion section (venturi tube) must be cut to theappropriate length.

Technical Data:

• Cable for 24 V power supply and should be connected to the monitoring unit.

• Permissible ambient temperature range: -10 to +50 °C.

In-operation indication/Group alarmoutputs Supply air fan and extract air fan in-operation indica-tions and separate Aand B alarms can be obtained viaterminal block connections.

CommunicationThe STING unit offers a variety of communicationpossibilities: Among others, communications circuitcards for connection to intelligent-building monitoringsystems, to the Internet and to mobile telephones.

BACnetThe Sting can be equipped with a communication circuit card for integration into the BACnet System. BACnet is an open world-wide standard, especially developed for the building automation field.BACnet is connected via the TCP/IP Network.

OPCThe Sting can be fitted with a card with OPC server thatcommunicates via TCP/IP. OPC has a few more features than Lon Works: it is possible, for instance toalter the internal time channels.

LonWorksThe Sting can be fitted with a communication card forconnection to LonWorks. The Lon card provides auto-matic transmission of all SNVTs and this facilitatescommissioning. The LonWorks card has 64 SNVTs andstandard SNVT.

ModbusThe Sting can be equipped with a communication circuit card for connection to a Modbus computer substation or to a Modbus supervisory system.Modbus is an open industrial defacto standard and is connected via RS 485.The Modbus card can be config-ured either as a master or a slave.

Controls


STING CATALOGUE

Controls

Modem

Modem

PC linked via intranet/network

PC direct online link

PC linked via modem

PC linked to intranet/ network with internet connection

Hand held PC with web browser

INTERNETTCP/IP

PPP

Web CommunicationA web application that offers you the same functionality as a conventional supervisory system although at consider-ably lower cost is available as an optional extra for STING units. Since the web server is integrated into the unit, there are no extra hidden costs or subscription fees.

HINT!BecauseaGSMmoduleisused,itisadvantageoustoutilise a so-called refill card which spares you from having to pay subscription fees. At present, cell phone users have to refill their accounts once every year in Sweden to avoid blockage. This can be done when changing the air filters, for example.

The web application is completely independent of opera-tive systems in PCs, i.e. no special software is necessary - only a web browser and an ordinary computer. The web server can be connected to a common local TCP/IP network. In this way you can communicate with the air handling unit from an optional computer in its local network. If no network is available, then it is possible to either connect a cable between the unit and the computer, or utilise a modem.


STING CATALOGUE

Shut-off damper for duct mounting, ETVADamper for duct mounting. Conforms to tightness Class CEN 3. The damper is made of galvanized sheet steel and fitted with an on/off actuator and has spring-return action. The damper actuator cable has a quick connector for connection to the appropri-ate socket inside the electrical equipment cubicle. Supplied without actuator if air handling unit with-out control unit is supplied. Duct connections for round dampers are with a rubber seal ring.Rectangular dampers are designed for PG-jointing to the ducting and if requested can be mounted directly to the unit. The damper vanes are coupled via externally mounted gears that are manufactured in PP-plastic. For unit sizes 65 – 85, the outdoor air damper and the extract air damper are mounted inside the air handling unit.The design can accommodate up to 50 mm thick ductinsulation.At air velocities below 10 m/s, the sound power levelofafullyopendamperislowerthan20dB.

Accessories

Duct sound attenuator, ETLDCircular connections, sizes10-20 and STING Top 30-35Suited to size 10-20 the straight circular duct sound attenuator is filled with 100 mm rock wool and a baffle. The duct connections are equipped with a rubber ring. The sound attenuator consists of a perforated sheet metal tube enclosed by a mantle and end walls made of galvanized sheet metal. The space between is filled with rock wool that is covered by staple fibre fabric to prevent fibre entrainment. Fire class EI30.Connection straight, 300 mm from fan outlet.

Duct sound attenuator, rectangularconnections, size 30-85 The sound attenuator suited to size 30-85 is a rectan-gular baffle sound attenuator. The casing is made of galvanized sheet metal. The baffles are filled with glass fibre with staple fibre fabric as protection against fibre entrainment. The duct connections are designed for PG-jointing to ducting. The baffle sound attenuators are not fire classified. Connection of sound attenuators can be made directly onto the fan outlet.

ETLD-aa-b

Size Connection Outer dim., mm Length, mm Wgt., kg

10 ø 315 ø 515 900 28

20 ø 400 ø 630 1200 42

20 Top ø 400 ø 630 1200 42

30,35 800 x 400 800 x 400 1200 32

30,35 Top ø 500 ø 711 1200 71

40 1000 x 500 1000 x 500 1200 44

50 1200 x 600 1200 x 600 1200 55

65 1600 x 800 1600 x 800 1200 93

80,85 2000 x 1000 2000 x 1000 1200 129

ETVA-aa-b-c-2

Size aa Connection Length Weight

10 ø 315 130 4

20 ø 400 130 5

20 Top ø 400 130 5

30 800 x 400 120 15

30 Top ø 500 130 9

35 800 x 400 120 15

35 Top ø 500 130 9

40 1000 x 500 120 20

50 1200 x 600 120 25

65 1600 x 800 220 38

80 2000 x 1000 220 55

85 2000 x 1000 220 55


STING CATALOGUE

Accessories

Electric air heater, For in-duct mounting, ETKKCircular connection, sizes 10-20, 20-35 STING TOP

Electric in-duct air heater with integrated thyristor. Casing made of galvanized sheet steel and heating elements made of grade SS2337 stainless steel. Degree of protection IP43. Connections with rubber seal ring.

The air heater should be installed at least 600 mm from a fan or duct bend. The air heater can be installed either horizontally or vertically. If installed horizontally the terminal box must not face downwards. The air heater is equipped with 2 overheating circuit breakers, one that resets automatically and one that has to be reset manu-ally which is done via the cover on the heater. The air heater is controlled by means of a 0-10 V signal from the units controlpanel.The air heater is CE labelled. Minimum air velocity is 1,5 m/s. Maximum permissible operating temperature is 40 °C. The air heater is interlocked across the supply air fan via circuitry inside the electrical equipment cubicle.Power must be supplied separately; the power supplycable is not included in the delivery. Signal cable for alarms, and operating the air heater has a quick connec-tor for connection to the appropriate socket inside the electrical equipment cubicle in the STING.

ETKK-aa-b-c-d-e-1 Size Output variant Connection Effect Outside dimension Weight Min.air flow aa b mm kW (BxHxL) kg m3/s

10 1 ø 315 3 1) 317x400x375 11 0,12 13.1 1)/7.5 1)

10 2 ø 315 6 317x400x375 11 0,12 15/9

10 3 ø 315 9 317x400x375 11 0,12 23/13

20 1 ø 400 6 405x480x375 12 0,19 15/9

20 2 ø 400 9 405x480x375 12 0,19 23/13

20 Top 1 ø 400 6 405x480x375 12 0,19 15/9

20 Top 2 ø 400 9 405x480x375 12 0,19 23/13

30 Top 1 ø 500 12 540x720x730 20 0,16 31/18

30 Top 2 ø 500 17 540x720x730 21 0,16 43/25

35 Top 1 ø 500 17 540x720x730 21 0,16 43/25

35 Top 2 ø 500 24 540x720x730 23 0,16 61/35

1) 3 kW Air heater connected to 1-phase (230 V) or 2-phase (400 V)

Max.consumption of current, A 230 V/ 400 V


STING CATALOGUE

Accessories

Electric air heater, For in-duct mounting, ETKKRectangular connections, sizes 30-85

Air heater, electric in-duct heater with integrated thyris-tor. Casing made of aluminium-zinc plated sheet steel and heating elements made of grade SS2337 stainless steel. Degree of protection IP43. Duct connections are designed for PG jointing to ducting. For the STING 65 – 85, the coil is built into the air handling unit casing and is mounted together with the possible cooling coil inside

the same casing. Can be connected directly to the unit or out in the duct system. Specify this when ordering because the end connections in the heater casing vary depending on how it is connected. On the size 20 – 50 STING units, the air heater can be mounted directly to the air discharge connection of the unit. The distance from the bend to the air heater should be at least a distance equal to the diagonal distance across the duct. The air heater can be installed either horizontally or vertically. If installed horizontally the terminal box must only be on the side, not on the top or the underside. The air heater is equipped with 2 overheating circuit breakers, one that resets automatically and one that has to be reset manually which is done via the cover on the heater. The air heater is controlled from the unit’s elec-trical equipment cubicle by means of a 0–10 V signal. The air heater bears the CE label. Min permissible air velocity:1.5m/s.Maxpermissibleoperatingtempera-ture:40°C.Theairheaterisinterlockedviaterminalblock inside unit’s electrical equipment cubicle. Power must be supplied separately; the power supply cable is not included in the delivery. Signal cable for alarms, and operating the air heater has a quick connector for connection to the appropriate socket inside the electrical equipment cubicle in the STING.

ETKK-aa-b-c-d-e-1 Size Output variant Connection Effect Outside dimension Weight Min.air flow aa b mm kW (BxHxL) kg m3/s

30 1 800x400 12 1019x438x600 20 0,48 30/17

30 2 800x400 17 1019x438x600 21 0,48 43/25

35 1 800x400 17 1019x438x600 21 0,48 43/25

35 2 800x400 24 1019x438x600 23 0,48 60/35

40 1 1000x500 24 1219x538x600 26 0,75 60/35

40 2 1000x500 30 1219x538x600 29 0,75 75/43

50 1 1200x600 27 1419x638x600 35 1,1 68/39

50 2 1200x600 35 1419x638x600 36 1,1 88/51

65 1 1600x800 1) 40 2004x1074x400 2) 75 3) 2,2 101/58

65 2 1600x800 1) 80 2004x1074x400 2) 90 3) 2,2 201/116

80,85 1 2000x1000 1) 64 2604x1374x400 2) 110 3) 4 161/93

80,85 2 2000x1000 1) 128 2604x1374x400 2) 145 3) 4 322/185

1) The connection dimensions of the coil casing, 2) The outer dimensions and functional length of the coil casing3) Weight of the function

Max.consumption of current, A 230 V/ 400 V


STING CATALOGUE

Air heater, water, for duct mounting, ETKECircular connection, sizes 10-20Air heater for hot water; consists of copper tubing and aluminium fins. The air heater is incorporated into a casing made of galvanized sheet steel. The casing has a removable cover for cleaning and spigots with rubber seal ring for connection to the ducting. The air heater for size 10 should be installed at least 600 mm from a fan or duct bend upstream of the air heater.The air heater is reversible for right-hand or left-hand connection.An anti-frosting sensor (strap-on sensor) is included in the control equipment.Venting and drainage should be carried out from the pipe work. The pipe connections are smooth and designed for clamp coupling.Maximum operating pres-sure:1.0MPaMaximum operating temper-ature:100°C

Rectangular connection, sizes 30-85Air heater for hot water; consists of copper tubing and aluminium fins. The air heater has exposed head-ers. Duct connections are designed for PG-jointing to ducting. The air heater for sizes 30-85 can be mounted directly onto the units outlet.The air heater is reversible for right-hand or left-hand connection.The coil for the size STING 65-85 units can be ordered as a duct-mounted coil without casing or as a coil incorporated into the casing of the air handling unit. Can be mounted together will a possible cooling coil in the same casing. Can be connected directly onto the air handling unit or out in the duct system. This must be specified when ordering, since the end walls of the casing differ.The anti-frosting sensor (insertion sensor) is included in the control equip-ment. The headers are equipped with plugged connections for vent-ing and drainage. The headers are fitted with plugged outlets for venting and drainage, joint number 8 with female pipe threads. The pipe joints have male pipe threads.Maximum operating pressure:1.6MPaMaximumoperatingtemperature:100°C.

ETKE-aa-b-c-1

Size Output variant Fin spacing Air connection Pipe connection Outside dimension Weight

aa b mm mm (BxHxL) kg

10 1 2,5 ø 315 22 mm 460x408x380 10

10 2 2,5 ø 400 22 mm 540x483x440 14

20 1 2,5 ø 400 22 mm 540x483x440 14

20 2 2,5 ø 500 22 mm 690x533x475 17

30,35 1 2,0 800x400 DN15 908x438x150 17

30,35 2 3,0 800x400 DN25 908x438x150 21

40 1 2,0 1000x500 DN25 1108x538x150 22

40 2 3,0 1000x500 DN25 1108x538x150 27

50 1 2,0 1200x600 DN25 1308x638x150 27

50 2 3,0 1200x600 DN25 1308x638x150 34

65 1 2,0 1600x800 1) DN25 2004x1074x300 2) 70 3)

65 2 2,0 1600x800 1) DN32 2004x1074x300 2) 110 3)

80,85 1 2,0 2000x1000 1) DN32 2604x1374x300 2) 105 3)

80,85 2 2,0 2000x1000 1) DN50 2604x1374x300 2) 140 3)

1) The connection dimensions of the coil casing 2) The outer dimensions and functional length of the coil casing 3) Weight of the function

Accessories


STING CATALOGUE

Air cooler, water, for duct mounting, ETKNCircular connection, sizes 10-20Air cooler for chilled water; consists of copper tubing and aluminium fins.The air cooler is incorporated into a casing made of galvanized sheet steel with 9 mm insulation. The casing has a removable cover for cleaning and spigots with rubber seal ring for connection to the ducting.The size 10 air cooler should be installed at least 600 mm from a fan or duct bend upstream of the cooler and is available for left-hand connection only.Venting and drainage should be carried out from the pipe work. The pipe connections are smooth, located on the outlet end wall and designed for clamp coupling.The drainage tray is made of stain-less steel and has a 19 mm pipe connection.Maximumoperatingpressure: 1.0 MPaMaximumoperatingtemperature:100°C

Rectangular connection, sizes 30-50Air cooler for chilled water; consists of copper tubing and aluminium fins. The air cooler has exposed head-ers and tube bends. Duct connections are designed for PG-jointing to ducting. The air cooler for sizes 30-50 can be mounted directly onto the unit’s outlet. The coil for the size STING 65-85 units can be ordered as a duct-mounted coil without casing or as a coil incor-porated into the casing of the air handling unit.To be mounted together with possible air heater in the same casing. Can be connected directly onto the air handling unit or out in the duct system. This must be specified when ordering, since the end walls of the casing differ.The headers are fitted with plugged outlets for venting and drainage, joint number 8 female pipe threads.The pipe joints for the chilled water have external pipe threads. The drainage tray is made partially of stainless steel, 32 mm pipe connec-tion with male pipe threads and is suitable for ESAZ-30 water trap.Maximumoperatingpressure: 1.0 MPaMaximumoperatingtemperature:100°C.

Accessories

ETKN-aa-b-c-1 Size Output variant Fin spacing Air connection Pipe connection Outside dimension Weight aa b mm mm (BxHxL) kg

10 1 2,5 ø 315 22 mm 540x486x440 16

20 1 2,5 ø 400 22 mm 690x536x475 21

30,35 1 2,0 800x400 DN25 1000x489x300 26

30,35 2 2,0 800x400 DN25 1000x489x300 30

40 1 2,0 1000x500 DN25 1200x589x300 36

40 2 2,0 1000x500 DN32 1200x589x300 42

50 1 2,0 1200x600 DN32 1400x689x300 47

50 2 2,0 1400x800 DN50 1600x889x300 68

65 1 2,0 1600x800 1) DN50 2004x1074x400 2) 160 3)

65 2 2,0 1600x800 1) DN50 2004x1074x500 2) 205 3)

80,85 1 2,0 2000x1000 1) DN80 2604x1374x400 2) 230 3)

80,85 2 2,0 2000x1000 1) DN80 2604x1374x500 2) 295 3)

1) The connection dimensions of the coil casing, 2) The outer dimensions and functional length of the coil casing, 3) Weight of the function

Air velocity – Chilled water coil Size Max. flow, m3/s Max. flow, m3/s STING without droplet eliminator without droplet eliminator max.3 m/s max.4 m/s

10 0,23 –

20 0,37 –

30 0,96 –

35 0,96 –

40 1,5 –

50 2,1 –

50, b = 2 3,3 –

65 4,7 6,3

80 8,2 11,0

85 8,2 11,0


STING CATALOGUE

Air cooler, dx, for duct mounting, ETKPRectangular connectionAir cooler for direct expansion, dx, in 2 stages, 1/3 + 2/3 interlace connection. The air cooler consists of copper tubing and aluminium fins. Exposed head-ers, pipe bends and distributor. Duct connections are designed for PG jointing to ducting. The air cooler for sizes 30-50 can be mounted directly onto the unit’s outlet. The air cooler can have right-hand or left-hand connection side. The coil for the size STING 65-85 units can be ordered as a duct-mounted coil without casing or as a coil incorporated into the casing of the air handling unit. To be mounted together with possible air heater in the same casing.Can be connected directly onto the air handling unit or out in the ducting. This must be specified when ordering, since the end walls of the casing differ.The drainage tray is made partially of stainless steel, pipe connection with 32 mm male threads and ETAZ-30 water trap.

Refrigerantconnections:15and28mmrespectively.Refrigerantoptions:R221),R134a,R404aandR407c.

1) not permissible in cooling systems in Sweden.

Accessories

ETKP-aa-b-c-d-e-1 Size Output variant Output step Fin spacing Air connetion Pipe connection Outside dimension Weight aa b c mm mm mm (BxHxL) kg

10-35 1 1 2,0 800x400 1x15/1x28 1000x489x300 26

10-35 1 3 2,0 800x400 1x15,1x12/1x28,1x12 1000x489x300 26

40 1 3 2,0 1000x500 1x15,1x12/1x28,1x12 1200x589x300 36

50 1 3 2,0 1200x600 1x22,1x15/2x28 1400x689x300 46

50 2 3 2,0 1400x800 2x15/2x28 1600x889x300 54

65 1 3 2,0 1600x800 1) 2x22/2x34.9 2004x1074x500 2) 205 3)

80-85 1 3 2,0 2000x1000 1) 2x22/2x54 2604x1374x500 2) 295 3)

1) The connection dimensions of the coil casing2) The outer dimensions and functional length of the coil casing3) Weight of the function

Air velocity – Dx-coil Size Max.flow, m3/s Max.flow, m3/s STING without droplet eliminator without droplet eliminator max.3 m/s max.4 m/s

10 0,96 –

20 0,96 –

30 0,96 –

35 0,96 –

40 1,5 –

50 2,1 –

50, b = 2 3,3 –

65 4,7 6,3

80 8,2 11,0

85 8,2 11,0


STING CATALOGUE

Differential pressure gauge, ETAZ-24Pressure gauge formeasuring air flow.Can be mounted onthe end wall of theunit and connectedto measurementnipples.Supplied unmounted.

Arrangement (b)1 = size 10, inclined tube manometer

2 = size 20-85, U-tube manometer

Accessories

Adjustable foot, ETAZ-20The unit can beplaced directly ontofloor if it is smoothand horizontal. Theadjustable foot can beused for heightadjustment. Therange of adjustmentis 15-85 mm. A rubberdisc is included.

Spare filter, ETAZ-211 spare filter cassette,F7(EU7).

Flexible connection, ETAZ-22Flexible sleeve made of glass fibrefabric for flexible connection toducts.

Stainless steel mounting frame, ETAZ-23Filter mounting framemade of grade SS2333(AISI 304) stainless steelwith drip tray below theoutdoor air filter (withoutdrainage). For humidclimate applications toprotect the unit casingagainst corrosion.The filters placement , over or under floor in the unit , has to be chosen when ordering.Not STING Top.

HK Instruments OyKeihästie 7

MM ….40950 MUURAME, FINLAND Tel +358 14 337 2000 Fax +358 14 337 2020

June 2004

INCLINED TUBE MANOMETER

Model summary Model code Manometer range Accuracy Gauge fluid

MM±50 -50… 0 … +50 Pa 1 Pa Red MM100 -20… 0 … +100 Pa 1 Pa Red MM±100 -100… 0 … +500 Pa 5 Pa/25 Pa RedMM200600 0… 600 Pa 5 Pa/25 Pa RedMM5001500 0… 1500 Pa 10 Pa/50 Pa Blue

Accessories Standard accessories:2 fixing screws Gauge fluid2 m tube ∅ 4 / 7 mm Red/green stickers

Technical data

Materials Housing ABS Cover PMMA Screws PCSealings NBR

Weight 420 grams

Ambient conditions Operation -40…+60°C

Max. Pressure 200 kPa (2 bar)

Gauge fluid Red, s.g. 0,786 kg/dm³ (15 °C) Blue, s.g. 1,870 kg/dm³ (15 °C)

________________________________________________________________________________________________

Size Quantity per size

10, 20, 30 4

35, 40, 50 6

65, 80, 85 6

ETAZ-22-bb-c Connection Type of connection

bb=10 ø 315 Clamps

bb=20 ø 400 Clamps

bb=20 Top ø 400 Clamps

bb=30, 35 800 X 400 PG-joints

bb=30, 35 Top ø 500 Clamps

bb=40 1000 X 500 PG-joints



bb=80, 85 2000 X 1000 PG-joints

Size


STING CATALOGUE

Accessories

Dual-purpose cowl for wall mounting, STING 10-30, ETAZ-25The cowl is designed for wall mounting, the intake ofoutdoor air through its bottom opening and the discharge of exhaust air straight out. The cowl is madeof galvanized sheet steel and has a black epoxy paintedfinish. Ametal screen covers the inlet and outlet open-ings to prevent rodents and other small animals fromentering the system.

c/c

Pressure drop, outdoor air and extract air

Dual-purpose cowl for roof mounting, ETAZ-26The cowl is designed for roof mounting, the intake ofoutdoor air through its bottom opening and the upward discharge of exhaust air. The extract air section is equipped with a non-return damper. A metal screencovers the outdoor air openings to prevent rodents andother small animals from entering the system.The cowl is made of galvanized sheet steel. The roofcowl can be fitted to an ETAZ-27 roof duct.

C5

0

D

F

A

E

B

G

Exhaust air

ETAZ-25-b Connection Outside dimension C/C Wgt. (B x H x L) kg

bb=1 (STING 10) 2 x ø 400 1000 x 580 x 220 500 15

bb=2 (STING 20,30) 2 x ø 500 1200 x 720 x 300 600 22

Air flow, m3/s

Pre

ssur

e dr

op,

Pa

Pre

ssur

e dr

op,

Pa

0

10

30

0 0,2 0,4 0,6 0,8 1,0 1,2

ø 400 ø 500

Exhaust air Outdoor air

10

5

0 Air flow

b =

1

b =

2

b =

3

Size

Pre

ssur

e dr

op,

Pa

m3/h

m3/s

10

Outle

t velo

city,

m/s

5

200

100

50

20

10

500 1000 2000 5000

0,1 0,2 0,5 1,0 2,0

Size

Pre

ssur

e dr

op,

Pa

10

20

50

100

200300

Air flow

m3/h

m3/s

500 1000 2000 5000

0,1 0,2 0,5 1,0 2,0

b =

1

b =

2b

= 3

ETAZ-26-b A B C D E F G Vikt kg

b= 1(STING 10,20, 30) 1050 550 525 1450 850 1000 500 45

b=2 (STING 35,40) 1450 750 675 1950 1150 1400 700 75

b=3 (STING 50) 1850 950 750 2400 1400 1800 900 105

Outdoor air


STING CATALOGUE

Accessories

Roof duct, ETAZ-27The roof duct is designed for the ETAZ-26 dual-purpose cowl. The roof duct is insulated with 50 mm thick mineral wool covered by perforated sheet steel.The roof duct is equipped with angle brackets for secur-ing it to the roof structure.

A

Stand for vertical configuration, ETAZ-28

Water trap, ETAZ-30Compact water trap withoverpressure valve for aircoolers. Maximum over-pressure 1700 Pa.

255

U-tube manometer, ETAZ-31A simple manometer for measuring pressure drop across the filter. Can be fitted tothe end wall of the unit and connected tomeasurement nipples. Supplied unmounted.

ETAZ-27-b Outside dimension Duct Hole dimen- A Wgt. (B x H x L) connection sion kg bb=1

1000 x 500 x 800 2 x ø 400 1010 x 510 500 56

(STING 10, 20, 30) bb=2

1400 x 700 x 800 600 x 600 1410 x 710 700 72

(STING 35, 40) bb=3

1800 x 900 x 800 800 x 800 1810 x 910 900 92

(STING 50)

Max. 700

Max. 560

Stand for Sizes 10-20 for vertical configuration of unit.The stand, feet and doorstop to top door are included in the kit.Not STING Top.


STING CATALOGUE

Service area The area around the unit should be planned to allowfor routine service work such as changing filters andcleaning of the fan and unit casing. An open servicepath must be provided in front of the unit’s electricalequipment cubicle. The width of this path shallconform to the recommendations outlined in EL-SÄKRFS 2004:1 Electric Power Regulations drawn up by the National Swedish Electrical Safety Board. In addition, allowance should be made for future re-placement of air handling unit components. Planning of this service area is a condition that must be fulfilled before the installation can comply with requirements for CE-labelling.

Service area requirements (mm)Unit width = AChange of components= AChange of filter = B

Aggregatet sett uppifrån

A

AB

Unit viewed from above

It is advisable to allow a minimum open space of 300mm for sizes 10-50 above the unit which will facilitate the electrical installation work. The unit should be situated or arranged in a way that will provide easy access to the electrical equipment cubicle for servic-ing. This applies chiefly to the size 40 and 85 units from which the electrical wiring is routed relatively high up.

Size A B

10 840 800

20 1040 (1340*) 800

30 1190 (1490*) 900

35 1190 (1490*) 900

40 1440 (1740*) 900

50 1740 (2040*) 900

65 2010 (2310*) 900

80 2610 (2910*) 900

85 2610 (2910*) 900

*) Unit with Cooler

Version for outdoor installationThe STING can be installed outdoor if the unit is fit-ted with a roof, air intake louvre with cowl and an exhaust air cowl. The control cubicle is equipped with a heater. Outdoor version must be specified when or-dering (STET h=3) so that the heater will be included in the supply. It cannot be installed afterward. The roof can be ordered mounted on the unit or supplied as loose parts. If it is supplied mounted on the unit, its joints will have been sealed at the factory. If the roof is ordered as loose parts, the supply will include sealing compound for sealing at the building site.Not STING Top. Air intake grille with cowl, ETAZ-15Air intake grille with cowl made of galvanized sheet steel and blades made of weather-resistant poly-propylene plastic. The air intake section has space for an internal damper, if required.

Exhaust air cowl, ETAZ-16Equipped with protective screen. Circular connection for the STING 10-20 and rectangular for the STING 30-85.

Roof for outdoor installation, ETAZ-33The roof is convex for good drainage. The roof for the size 10-50 units is split in such as way that the control cubicle on the roof is easily accessible.

Accessories, Service area

ETAZ-33

ETAZ-16

ETAZ-15

Sizes 10-20

Sizes 30-85

ETAZ-16

ETAZ-15


STING CATALOGUE

STING ETAS-aa-b-c-d-1-f-2-h-1 Air handling unit

Size (aa) 10, 20, 30, 35, 40, 50, 65, 80, 85

Supply air location (b) 1 = supply air, bottom, right-hand

(standard)2 = supply air, bottom, left-hand.

Not aa = 103 = supply air, top, right-hand (standard).

Not aa = 104 = supply air, top, left-hand

Connection (c) 1 = inlet/outlet in end wall (standard)2 = outlet in top panel, not aa=103 = inlet in top panel, not aa=104 = inlet/outlet in top panel, not aa=105 = Top ( aa= 20, 30, 35, d=2, b=1,4)

One-piece, sectionalized unit (d) 1 = one-piece unit,

(applicable to sizes 10, 20, 65-85)2 = sectionalized unit (applicable to sizes 30-85)5 = divisible with Cooler (not applicable to size 10)

Rotary heat exchanger (e) 1 = non-hygroscopic (standard)2 = hygroscopic6=non-hygroscopicTURBOTERM7=hygroscopicTURBOTERM

Delivery configuration (f) 0 = without controls (applicable to size 85 only)1 = with controls2 = pre-wired for external control cubicle4 = with controls and communication

Voltage (g) 2 = 3 x 400 V

Post-treatment section (h) 0 = without (standard)1 = with, on supply air side (not size 10)2 = post-treatment section (sizes 60-85) connected

directly to air handling unit

Execution (i) i = 1 = with integral motori = 3 = with EC-motor (only a = 20, 30, 35)

Coil casing ETGA-aa-bbb-c-1

Unit size (aa) 65, 80, 85

Length,cm(bbb)

Connection variant (c) 0 = connection in ductwork2 = connection to air handling unit

Accessories

End wall for coil casing ETGV-aa-b-1 Unit size (aa) 65, 80, 85

Location(b) 1 = end wall on inlet side2 = end wall on outlet side

Empty section ETTC-aa-b-c-d-1 Unit size (aa) 60, 80, 85

Length(b) 2 = 2003 = 3004 = 400 (standard)

Inspection door (c) 1 = with door

Inspection side (d) 1 = right-hand2 = left-hand

Damper ETVA-aa-b-1 Unit size (aa) 10, 20, 30, 35, 40, 50, 65, 80, 85

Delivery configuration (b) 0 = without damper actuator

(refers to external control cubicle)1 = on/off with spring return2 = on/off

Location(c) 1 = external (delivered separately)2 = internal (extract air side) 65-85,

not for inlet in top panel3 = internal (outdoor air side) 65-85,

not for inlet in top panel5 = Top (ETAS c = 5)

Ordering Codes


STING CATALOGUE

Air cooler for chilled water ETKN-aa-b-c-d-1 Mounted in ductwork Unit size (aa) 10, 20, 30, 35, 40, 50, 65, 80, 85

Output variant (b) 1, available for size 10 - 202, Not available for the size 10 – 20 units 2, size 50 has connection dimensions 1400 x 800

Droplet eliminator (c) 0 = without (size 10-85)1 = with (size 65-85)

Connection side (d) 1 = right-hand (aa= 30-85)2 = left-hand (aa =10-85)

Air cooler, DX ETKP-aa-b-c-d-e-1 Mounted in ductwork

Unit size (aa) 10,connectiondimensions:800x400mm20,connectiondimensions:800x400mm30, 35, 40, 50, 65, 80, 85

Output variant (b) 12 = available for size 50 only,

connectiondimensions:1400x800mm

Output stages (c) 1 = 1 output stage (size 10-35)3 = 2 output stage 1/3 + 2/3 interlace

(sizes 10-85) Droplet eliminator (d) 0 = without (size 10-85)1 = with (size 65-85)

Connection side (e) 1= right-hand2= left-hand

Air heater for hot water ETKE-aa-b-c-1 Mounted in ductwork Unit size (aa) 10, 20, 30, 35, 40, 50, 65, 80, 85

Output variant (b) 12 = size 10 has a 400 mm dia. connection ,

size 20 has a 500 mm dia. connection.

Connection side (c) 1 = right-hand2 = left-hand

Electric air heater ETKK-aa-b-c-d-e-1 Mounted in ductwork

Unit size (aa) 10, 20, 30, 35, 40, 50, 65, 80, 85

Output variant (b) 1, 23, available for aa=10 only

Version (c) 1 = heating bar type (size 85)2 = heating bar type with thyristor and

stepping switch3 = heating bar type with thyristor and

stepping switch (Top size 30-35)

Power supply (d) 1 = 3 x 230 V AC, output variant 1, i.e. 3 kW heater is

to be wired to a single-phase (230 V) or 2-phase (400 V) supply.

2 = 3 x 400 V AC, output variant 1, i.e. 3 kW heater is to be wired to a single-phase (230 V) or 2-phase (400 V) supply.

Connection side (e) 1 = right-hand2 = left-hand

Ordering Codes

Sound attenuator ETLD-aa-b Unit size (aa) 10, 20, 30, 35, 40, 50, 65, 80, 85

Location(b)1 = standard (ETAS c = 1-4)2 = Top (ETAS c = 5)


STING CATALOGUE

Outlet cowl ETAZ-16-bb-1-1

Unit size (bb) 10-85

Adjustable foot ETAZ-20-b-1 (set, supplied unmounted)

Number of feet (b) 1 = 4 feet (sizes 10, 20, 30, 35))2 = 6 feet (sizes 40, 50)3 = 6 feet (sizes 65-85)

Spare filter (for one airflow path) ETAZ-21-bb-c-1 Unit size (bb) 10-85

Location(c) 1 = inlet – end connection2 = inlet in top panel3 = Top (ETAS c = 5)

Flexible connection ETAZ-22-bb-c (supplied unmounted)


Location(c) 1 = standard (ETAS c = 1-4)2 = Top (ETAS c = 5)

Stainless filter frame, accessory set ETAZ-23-bb-c-1 Unit size (bb) 10-85

Location(c) 1 = lower level and upper level, to the right of the rotor2 = lower level and upper level, to the left of the rotor3 = inlet in top panel

Differential pressure gauge, flow measurement ETAZ-24-bb-1 (For units without control unit only) Unit size (bb) 10 = sloping tube manometer20-85 = U-tube manometer

Dual-purpose cowl for wall mounting, sizes 10, 20 ETAZ-25-b

Duct connection dimensions (b) 1 = 2 x 400 mm (size 10)2 = 2 x 500 mm (sizes 20, 30)

Ordering Codes

Cooling unit Cooler ETKC-aa-b-c-dd-e-f-g-h-i-j-k-l

Unit size (aa)20-85

Capacity variant (b)1, 2, 3

Design (c)1 = supply air, down, counter-flow3 = supply air, up, counter-flow

Fin pitch (dd) (supply air) / (exhaust air)20 = 2,0 mm / 1,8 mm25 = 2,5 mm / 2,0 mm

Material, coil (e)Only supply air coil1 = Cu/Al

Water cooled condesor (f)0 = without1 = with

Droplet eliminator (g)0 = without1 = with

Refrigerent (h)1 = R407C

Capacity control (i)0 = without1 = with hot gas bypass

Voltage (j)1 = 3 x 400V, 50 Hz2 = 3 x 230V, 50 Hz (Norway)

Material (k)1 = galvanized steel sheet

Inspection side, supply air (l)1 = right2 = left

Lifting tubes, set of 2 ETAZ-05-bb

Unit size (b) 10-85

Air intake louvre with cowl ETAZ-15-bb-1-1



STING CATALOGUE

Control equipment STET-a-b-ccc-ddd-e-f-g-h-ii-j

Fan motor, TF (a) 4 = speed control, FO

Fan motor, FF (b) 4 = speed control, FO

Fan output (ccc) 014 = 1.4 kW (size 10, 20) 015 = 1.5 kW (size 30) 022 = 2.2 kW (size 35) 040 = 4.0 kW (size 40, 50) 075 = 7.5 kW (size 65, 80) 110 = 11 kW (size 85)

Air heater (ddd) 000 = without post heating003 = hot water, external shunt004 = electric, with built-in thyristor999 = unspecified(dealer’s version) (not in ACON)

Heat exchanger (e) 1 = rotary heat exchanger

Air cooler (f) 0 = no cooler1 = chilled water2 = evaporative refrigerant, 1 stage3 = evaporative refrigerant, 2 stages

Sequential mode4 = evaporative refrigerant, 2 stage

Binarymode7 = ETCK Cooler

Voltage (g) 4 = 3 x 400 V AC

Delivery option (h) 1 = built in3 = built in, outdoor version6 = terminal box

Control unit (ii) 00 = without control equipment82 = Fläkt Woods standard

Control unit display (j) 0 = without display/standard display5 = character-based, 8 lines

Ordering Codes

Dual-purpose cowl, roof mounting ETAZ-26-b Connection dimensions (b) 1 =1000 x 500 mm (sizes 10, 20, 30)2 =1400 x 700 mm (sizes 35, 40)3 =1800 x 900 mm (size 50)

Roof duct ETAZ-27-b

Connection dimensions (b) 1 =1000 x 500 mm (sizes 10, 20, 30)2 =1400 x 700 mm (sizes 35, 40)3 =1800 x 900 mm (size 50)

Stand for vertical configuration ETAZ-28-bb-1

Unit size (bb) 10, 20

Water trap for positive pressure ETAZ-30 (supplied unmounted) U-tube manometer, for filter ETAZ-31 (supplied unmounted)

Roof for outdoor installation ETAZ-33-bb-c-d-e-1 Unit size (bb) 10, 20, 30, 35, 40, 50, 65, 80, 85

Material (c) 1= galvanized sheet steel

Version (d) 0 = unmounted1 = mounted

Location(e) 1 = roof for air handling unit2 = unit with empty section Assembly instructions ETAZ-36-bb-3 Languagevariant(bb) 02 = Swedish03 = English06 = Finnish

Reinforced packaging ETAZ-37-bb-1-1 Unit size (bb) 10, 20, 30, 35, 40, 50, 65, 80, 85


STING CATALOGUE

Speed control STYZ-02-bb-c-d-e-f-1

Control unit (bb) 00 = without control equipment82 = Fläkt Woods standard

Speed control, supply air (c) 4 = airflow control 5 = CO2-control, in-duct sensor (d=7)6 = CO2-control, room sensor (d=7)7 = slave-controlled supply airflow 9 = pressure control with flow readings

Speed control, extract air (d) 4 = airflow control 5 = CO2-control, in-duct sensor (c=7)6 = CO2-control, room sensor (c=7)7 = slave-controlled extract airflow9 = pressure control with flow readings

Pressure range (e) 0 = without1 = 0-1000 Pa, designed for airflow control

size 10, and pressure control all sizes.2 = 0-3000 Pa, designed for airflow control

sizes 20-85

Delivery configuration (f) 2 = unmounted with cable and quick connector5 = mounted and connected with quick connector

Ordering Codes

Temperature control STYZ-01-bb-c-d-e-f-g-h-i-j-k-1

Control unit (bb) 00 = without control equipment82 = Fläkt Woods standard

Control situation (c) 1 = supply air control, includes

1 in-duct sensor2 = extract air control, includes

1 in-duct sensorand 1 factory-fitted extract air sensor inside air handling unit

3 = room control, includes 1 in-duct sensor and 1 room sensor

Night-time cooling (d) 0 = without1 = with, includes necessary room

sensor and façade sensor Night-time heating (e) 0 = without1 = with2 = with 100% recirculated air includes

necessary room sensor and façade sensor

Cooling energy recovery (f) 0 = without1 = with, includes necessary in-duct sensor

Set point displacement (g) 0 = without1 = outdoor air compensated temperature

set point includes necessary in-duct sensor Airflow compensation (h) 0 = none1 = blocking, high speed at low outdoor

temperatures2 = outdoor temperature compensated airflow

via transfer curve4 = summer-/winter compensated airflow/

pressure5 = comfort control, (reduced airflow

through heat exchanger) Efficiency measurement (i) 0 = without2 = supply airs measurement

Type of sensor (j) 2=NI–1000LG

Connection (k) 1 = unmounted5 = mounted and wired with quick connector


STING CATALOGUE

Fire detection STYZ-20-b Control unit (b) 1 = alarm from external fire alarm function

(for potential-free contact)2 = with control unit and alarm function

(no damper control)6 = with control unit, alarm function and exercising of

max 2 dampers7 = with control unit, alarm function and exercising of

max 4 dampers

Smoke detectors STYZ-22-b-c-dd Supply air (b) 0-9 = quantity

Extract air (c) 0-9 = quantity

Mounting shelf (dd) 00-18 = quantity

Smoke damper function STYZ-23-b-c-d-e (Two-position damper actuator, 230 VAC.) Supply air (b) 0-9 = quantity (normally open)

Extract air (c)0-9 = quantity (normally open)

Supply air evacuation (d)0-1 = quantity

Extract air evacuation (e)0-1 = quantity

Fire thermostat STYZ-24-b-c Supply air (b)0-1 = quantity

Extract air (c)0-1 = quantity

Ordering Codes

Communication STYZ-05-bb-c-d-e-2 Control unit (bb) 82 = Fläkt Woods standard

Function/protocol (c) 0 = without3=LonWorks5 = SMS in event of alarm6 = OPC server7 = Modbus RTU8=BacNet

Accessories (d) 0 = without3 = GSM modem incl. antenna

Fl@ktNET (e) 0 = without1 = web pages only3 = web pages + SMS

Communication cable STYZ-06-bb-cc-0 Extension cable, display

Control unit (bb) 82 = Fläkt Woods standard

Length(cc) 05 = 5 m 10 = 10 m

Defrosting STYZ-10-82-1-1-9-2 Frost protection sensor STYZ-11-b-c-d Type of sensor (b) 2=NI–1000LG

Version (c) 1 = insertion sensor

(rectangular air heater, ETKE-aa, aa = 30-85 except ETKE-30-1, 35-1)

2 = strap-on sensor (cirkular heating coil, ETKE-aa, aa = 10, 20, and ETKE-30-1, 35-1)

Connection (d) 2 = unmounted with cable and quick connector


STING CATALOGUE

Load interrupter STYZ-39-bbb-c-1 Max permissible current (bbb)016 = 16 A025 = 25 A032 = 32 A045 = 45 A063 = 63 A080 = 80 A125 = 125 A160 = 160 A

Auxiliary contact (c)0 = without 1 = with breaking, 1 closing switch

Delivery configuration (d)1 = unmounted

Prolonged/forced operation STYZ-40-b-c-d-0-f

Forced operation (b)1 = prolonged operation2 = forced operation3 = forced airflow, prolonged operation

Control via external timer (c)0-5 timers

Control via external push-button (d)0-5 push-buttons

Control via motion detector (f)0-5 motion detectors

Ordering Codes

Damper actuator STYZ-27-b-cc-d

Location(b)1 = outdoor air damper2 = extract air damper8 = exhaust air damper

Type of actuator (cc)31 = two-position damper with spring return,

15 Nm, 24 V AC

Delivery configuration (d)2= unmounted, with cable and quick connector

Filter monitor STYZ-28-b-c Location(b)1 = supply air2 = extract air3 = supply air and extract air

Delivery configuration (c)2 = unmounted, with cable and quick connector

Modified designations / STYZ-36-bb-4-dd-e-f-g-1Language

Control unit (bb)00 = without control equipment82 = Fläkt Woods standard

Unit size (dd)01-99

Delivery configuration (e)0 = without control unit1 = with control unit

Languageinwiringdiagram (f)1 = Swedish2 = German3 = English4 = Finnish5 = Danish

LanguageinDUCdisplay(g)0 = without1 = Swedish2 = German3 = English4 = Finnish5 = Danish


STING CATALOGUE

Service code SERV-03-b Type of service (b)1 = commissioning2 = participation during inspection3 = refurbishing

Frequency inverter STRF-a-bb-ccc-d-e-f-g-h-ii-00

Air handling unit family (a)4 = ET

Unit size (bb)10, 20, 30, 35, 40, 50, 65, 80, 85

Output (ccc)014 = 1.4 kW (sizes 10, 20)015 = 1.5 kW (size 30)017 = 1.7 kW EC-motor (size 20, 30)022 = 2.2 kW (size 35)031 = 3.0 kW EC-motor (size 35)040 = 4.0 kW (sizes 40, 50)075 = 7.5 kW (sizes 65, 80)110 = 11 kW (size 85)

Voltage (d)4 = 3x400 V AC

Number of phases (e)1 = single-phase (size 10, 20)3 = 3-phase (size 30-85)

Number of motor poles (f)2 = 2 poles (sizes 10-30)4 = 4 poles (sizes 35-85)

Version (g)1 = mounted (85)4 = included in integral motor (10-80)

Enclosure class (h)2 = IP 54

Operating frequency, high speed (ii)(Hz)Set to 00 for airflow and/pressure control

Make (jj)00 = FWG standard

Ordering Codes

Valve/Valve actuator STYZ-70-bb-c-d-e-f-ggg

Brand (bb)20 = Siemens

Scope of supply (c)1 = actuator only2 = valve with actuator

Type of valve (d)0 = without2 = 2-way3 = 3-way

Location (e)1 = heating2 = cooling

Connection (f)1 = unmounted, supplied at same time as control

equipm.2 = unmounted with cable and quick connector

Kvs-value (ggg)006 = 0.63010 = 1.0016 = 1.6025 = 2,5040 = 4.0063 = 6.3100 = 10.0160 = 16.0250 = 25.0400 = 40.0490 = 49.0

Kvs-value Siemens actuator 0.25-2.5 SQS65 4.0-6.3 SQS65 10-40 SQX62 49 SKB62 63 SKB62 78 SKB62 63-99.9 SKC62

Remote control unit STYZ-41-b Version (b) 1 = timer with in-operation LED, alarm LED

(Norwegian version)2 = switch, off/remote/hand (Finland version)

Transformer STYZ-55-b-cc-d Voltage (b)1 = 230 to 400 V AC

Output (cc)12 = 12.5 kVA(sizes 10, 20, 30)16 = 16 kVA(sizes 35-40)20 = 20 kVA(sizes 50)25 = 25 kVA(sizes 65-80)40 = 40 kVA(size 85)

Version (d)1 = full

Fläkt Woods Group SA18, avenue Louis Casaï, CH-1209 Geneva, SwitzerlandTel. +41 22 309 3800email [email protected] www.flaktwoods.com

See global website for international sales offices www.flaktwoods.com

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We Bring Air to Life

Fläkt Woods is a global leader in air management. We specialise in the design and manufacture of a wide range of air climate and air movement solutions. And our collective experience is unrivalled.

Our constant aim is to provide systems that precisely deliver required function and performance, as well as maximise energy efficiency.

Solutions for all your air climate and air movement needs

Fläkt Woods is providing solutions for ventilation and air climate for buildings as well as fan solutions for Industry and Infrastructure.

Fans

Advanced axial, centrifugal and boxed fans for general and specialist applications. Comprehensive range including high temperature and ATEX compliant options. Engineered for energy efficiency and minimised life cycle cost.

Chillers

Air-cooled and water-cooled chillers with cooling capacity up to 1800kW. Designed to minimise annual energy consumption in all types of buildings.

Controls and drives

Variable speed drives and control systems, all tested to ensure total compatibility with our products. Specialist team can advise on energy saving and overall system integration.

Air Handling Units (AHUs)

Modular, compact and small AHU units. Designed to ensure optimisation of indoor air quality, operational performance and service life.

Air Terminal Devices and Ducts

Supply and exhaust diffusers and valves for installation on walls, ceiling or floor are all included in our large range and fit all types of applications.

Chilled Beams

Active induction beams for ventilation, cooling and heating, and passive convection beams for cooling. For suspended or flush-mounted ceiling installation – and multi-service configuration.

With unique Comfort Control and Flow Pattern Control features.

Residential ventilation

A complete range of products for resi-dential ventilation. Consists of ventila-tion units, exhaust air fans and cooker hoods designed to optimise indoor comfort and save energy.

sting - technical catalogue 8210gb 200902

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