nc 20100114 e · application typesncar ecompactpressure independentvavandcavair...

NC series

Compact VAV and CAV air volume control terminals

Description

Type designation

Technical data

- General

- Specification

- Installation instruction

Model overview dimensios

Sound data

Sound data

Sound data

Sound data

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NCOA...

NCOC...

NCOG... / NCON...

NCOJ... / NCOQ...

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Table of contents

Changes w/o notice or obligationRev 100422

1

N - C - O - N - E - O - BPosition 1 : Product group Ordering example :

N = air volume control terminals N C O N E O B 1 6 0 R 1 0 0 0

O Position 3 : ( )Controls manufacturerO without controls

For controls contact our sales staff =

,

N Position 4 : Outlet

N

C Position 2 : Function

A single wall circular volume control terminal = , B = double wall circular volume control terminal ,

C = compact type

E Position 5 : Reheat coil

O Position 6: & Controls type function( )

B Positon 7: Sensor

Handingcontrols

Heater

&

Electric heatercapacity (Watt)

Model 100-400

Ordering codes Specials " "

N..1... - 3010 = 4 balancing dampers in Octopus’ outlet

'

N..1... - 3006 = ‘Octopus’ with 6 outlets instead of 4

N..1... - 3016 = ‘Octopus’ with 6 outlets incl. balancing dampers

N..1... - FL = Flange connection 30mm for rectangularoutlet

Ordering information :

Standard terminals:

- quantity of terminals- complete 7 digit code- terminal size or model- air volume setting (V , V etc)- control handing (standard right side)- if applicable, electric reheat coil

capacity- supply or return air

max min

Non standard terminals:

- for non standard terminals a fulldescription and / or drawing arerequested

.

1 = non standard specify separately ,

rectangular outletcircular outlet4 circular outlets Octopusrectangular outlet and provision for integral hot water reheat coil4 circular outlets and provision for integral hot water reheat coilrectangular outlet and provision for integral electric reheat coil4 circular outlets and provision for integral electric reheat coilnon standard specify separately

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ABCGJNQ1

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without reheat coil1-row hot water reheat2-row hot water reheat4-row hot water reheat1-stage 230VAC/1-phase electric reheat coil2-stage 230VAC/1-phase electric reheat coil3-stage 230VAC/1-phase electric reheat coil1-stage 400VAC/3-phase electric reheat coil2-stage 400VAC/3-phase electric reheat coilnon standard specify separately

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OABDEFGHJ1

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O without controlsFor controls, contact our sales staff

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OB

1

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=

not applicableFlo-cross, 2 x 12 point averaging and signal amplifying air flow sensor (standard)non standard, specify separately

See above

2Changes w/o notice or obligation

Rev 100422

Composition type designation:


Type designationNC.....

Application

Types NC are compact pressureindependent VAV and CAV airvolume control terminals With round inlet and rectangular outlet. The terminals are designed for the accurate measurement and control of air volumes courtesy of the patented airflow sensor.In CAV application, the terminals maintain the required constant airflow independent of the inlet static pressure.In VAV application, the terminals control the air volume to the room, depending on the cooling load required thus saving energy in both cooling and heating applications.The VAV or CAV terminals can be used either for supply or return air applications in new or refurbishment projects. The terminals can be delivered with a distribution plenum and a built-in hot water or electric reheat coil.

Pressure independent controlfunctions

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Flo-Cross

Volume control range 100% to10%Low pressure loss over theterminalFactory fitted distributionplenum with built in hot wateror electric reheat coilOval shaped damper blade forlinear control characteristicsLow leakage damper, less than 1% of Vnom at 750 PaLow noise levelSuitable for all control functions (VAV, CAV, shut-off, etc.) To maximise system energy savings

Features: ●

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Flo-Cross, 2 x 12 points averaging and signal amplifying airflow sensor, better than 2.5% accuracy even with irregular duct approachMaintenance free

The rectangular discharge section is internally insulated

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Technical information

Casing

Insulation

Damper

Flo-Cross

Distribution plenum

Reheat coil

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Air-tight construction made of galvanized sheet steel with low casing leakage rate.

Damper blade made of steelsandwich construction with twinblades and a neoprene gasket withlow leakageDamper shaft aluminium,Φ12mm with self lubricating nylon bearings.

Extruded aluminium construction with nylon core and feet

Made of galvanised sheet steel with 13 mm internal isolation. Plenum with standard rectangular or multiple (4 x circular) outlet construction. Optional 1,2,3 or 6 circular outlets are possibleOutlet spigots are made ofgalvanised steel and optionally can be provided with volume control dampers

Choice of 1, 2 or 4-row hot water reheat coil or electric reheat coil (230VAC/1-phase or 400VAC/3-phase).

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Controls:Suitable for use with pneumatic, analogue electronic or DDC controllers. Controls can be factory fitted, wired and calibratedControls enclosure galvanisedsheet steel can be providedoptionally

The VAV or CAV terminal will be supplied as a single mounting assembly.

Controls location and hot water or electric connections are as standard fitted on the right hand side of the terminal when looking in the direction of the airflow

On request, the terminal can be delivered with connections on the left hand side.

When terminals are orderedwith controls, these will befactory fitted, wired andcalibrated upon request

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Delivery format:

Delivery format:●

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Optional ordered distribution plenum, reheat coil and/or controls are factory fitted, wired and calibrated. The terminal can be directly installed and commissioned when delivered to site.

Changes w/o notice or obligation3

Rev 100422

Technical dataType (NC.....)


Specify as:

Example:Supply and install, variable air volume terminals with distribution plenum and 4 circular outlets, constructed from galvanized sheet steel. The casing leakage rate shall be classified according to class II, VDI3803/DIN24194. The VAV terminals shall have oval shaped damper blade with neoprene gasket and an aluminium damper shaft with self lubricating nylon bearings.

A centre averaging airflow sensor with at least 2 x 12 test points and amplified signal, type Flo-Cross shall control the airflow with an accuracy better than 2.5%. The terminals shall be supplied with 1-row hot water reheat coil.

Max. radiated sound index < NC30 (@250Pa Δp)

Ordering example type - model -handing= NCOJAOB - 200R

Manufacturer: HC Barcol-Air

The controller shall be I A Series, DDC controller LonMark compatible, type MNL-V2RVx orBACnet, type MNB-V2.

Controls must be factory fitted, wired and calibrated according to the following requirements:

Miximum air volume 250 l/sMinimum air volume 60 l/sMinimum air volume 120 l/s (in case of reheat)Terminal size 200 mmMax. pressure loss 38 PaMax. discharge sound index < NC30 (@250Pa Δp)

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Installation Instructions :

The HC Barcol-Air VAV terminalsshall be installed using at leasttwo support channels, with anti-vibration rubber under theterminal as shown in the drawing below). Each of these channelsshall be fixed with two threadedrods to the ceiling slababove Alternatively 4 duct fixinghooks can be privided forsuspending the units

The installation method1 Shall prevent the body of the

VAV terminal from highmechanical tension, which could damage the constructionand performance of the terminal

2 Shall prevent torsion on the VAVterminals, which could causemalfunction of the damperblades

3 Provides some flexibility to thefinal location of the VAVterminals

4 Use at least one diameterstraight duct length before theVAV inlet

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5 Additional manual volume control dampers VCD s before the unit inlet should not be used.

6 All connections shall bethermally isolated

7 Pressure sensing tubes ofFloCross airflow sensor shallnot be kinked or otherwiseobstructed by the externalduct insulation

See drawing below.

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" "

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“slip & Drive connections”

suspension bracket for duct (with anti-vibrotion rubber against vibration and to avoid thermal bridge)

STANDARD MOUNTING OPTIONAL MOUNTING

anti-vibration rubber inlaymounting rail M8ring M8

hexagonal nut M8theroded end M8

optional: 4 x duct fixing hook contact HC Barcol-Air for futther details


Rev 100422



Type NCOAOOB Type NCOG.OB Type NCON.OB

Type NCOP.OBType NCOH.OBType NCOCOOB

Type NCOJ.OB Type NCOQ.OB

Other dimensions are avaliable upon request .

Dimensions NC terminals


Rev 100422

Kv values


：

1.

Sound data is determined in a reverberationroom at an independent sound laboratory, according to ISO3741 and ISO 5135 standards.

2. Lw in dB/Oct.(re 1pW) are sound power levels for discharge sound and case radiated sound. Figures less than 17 dB are indicated by “-”.

3. The discharge sound pressure levels are determined with the assumptions as mentioned in table 1 for downstream ductwork including a diffuser with insulated plenum box.

4. The radiated sound pressure levels are determined

with the assumptions as mentioned in table 1 for ceiling plenum and suspended ceiling absorption.

5. Lp values are including a room absorption of 10 dB/Oct.

6. DB(A), NC and NR index figures are sound pressure levels. Figures less than 20 are indicated by “- -”.

7. Δps is static pressure drop across VAV airvolume control terminal with damper fully open.

8. For non standard applications and/or selections, please contatct our technical staff.

HzDischarge dBRadiated dB

( )

( )

12552

250105

5002010

1K3015

2K3015

4K2520

Sound data p = 125 Pa Δ


Type NCOAOOB

Table 1 : Assumptions for additional attenuation


Rev 100422

data refering toinlet spigot

air volume

minPs

. Δ

discharge sound

Lp values

Δp = 125 Paradiated sound

Lp values

1.




4. The radiated sound pressure levels are determined

with the assumptions as mentioned in table 1 for ceiling plenum and suspended ceiling absorption.






( )

( )

12552

250105

5002010

1K3015

2K3015

4K2520



Rev 100422



Type NCOAOOB


air volume

minPs

. Δ

discharge sound

Lp values

radiated sound Lp values



Type NCOCOOB

1.




4. The radiated sound pressure levels are determined with the assumptions as mentioned in table 1 for ceiling plenum and suspended ceiling absorption.






( )

( )

12552

250105

5002010

1K3015

2K3015

4K2520



Rev 100422

Model100125160200250315355400

12598887777

250109988888

50011101099999

1K1312121111111111

2K1514141313131313

4K1514141313131313

HzdBdBdBdBdBdBdBdB

Table 2 Insertion Loss :


air volume

minPs

. Δ

discharge sound

Lp values


1.










( )

( )

12552

250105

5002010

1K3015

2K3015

4K2520



Rev 100422

Model100125160200250315355400

12598887777

250109988888

50011101099999

1K1312121111111111

2K1514141313131313

4K1514141313131313

HzdBdBdBdBdBdBdBdB




Type NCOCOOB


air volume

minPs

. Δ

discharge sound

Lp values




Type NCOG. OB NCON. OB

1.










( )

( )

12552

250105

5002010

1K3015

2K3015

4K2520



Rev 100422

Model100125160200250315355400

12598887777

250109988888

50011101099999

1K1312121111111111

2K1514141313131313

4K1514141313131313

HzdBdBdBdBdBdBdBdB



air volume

minPs

. Δ

discharge sound

Lp values


Model100125160200250315355400

12533222111

25044655443

50066

101010998

1K1111101011101010

2K1010101010101010

4K1212111110101010

HzdBdBdBdBdBdBdBdB

1.










( )

( )

12552

250105

5002010

1K3015

2K3015

4K2520



Rev 100422




Type NCOG OB NCON OB. .


air volume

minPs

. Δ

discharge sound

Lp values


Model100125160200250315355400

1251312121111888

2501715151515111111

5002322222121212121

1K2625252424242424

2K2827272626262626

4K3029292828262626

HzdBdBdBdBdBdBdBdB


air volume

minPs

. Δ

discharge sound

Lp values




Type NCOJ OB NCOQ OB. .

1.










( )

( )

12552

250105

5002010

1K3015

2K3015

4K2520



Rev 100422


Model100125160200250315355400

1251312121111888

2501715151515111111

5002322222121212121

1K2625252424242424

2K2827272626262626

4K3029292828262626

HzdBdBdBdBdBdBdBdB

1.










( )

( )

12552

250105

5002010

1K3015

2K3015

4K2520



Rev 100422



air volume

minPs

. Δ

discharge sound

Lp values




Type NCOJ OB NCOQ OB. .

HC Barcol-Air

No 16 Changhong Road Fengxiang Industrial AreaDaliang Shunde Foshan Guangdong China P S 528300Tel 0757 22382867Fax 0757 22382857www.barcolair.netwww.barcolair.cn

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http://www.barcolair.net

http://www.barcolair.cn

nc 20100114 e · application typesncar ecompactpressure independentvavandcavair...

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