hm technical file en

HEATMASTERTECHNICAL

excellence in hot water

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HeatMaster...the solution to allHot Water needs

Large houses

Blocks of appartments

Hotels

Camp sites

Restaurants

Spas

Canteens

Schools and colleges

Sport centres

Swimming pools

Beauty parlours& fitness centres

Hospitals &senior residences

Car wash

Slaughterhouses

Breweries

Distilleries

Industrial & agriculturalapplications

...Besides, every HeatMasterhas a primary circuit andcan be used as a heatingboiler as well

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INTRODUCTION

HEATMASTER RANGE

DESIGN FEATURES

DESCRIPTION OF OPERATION

SAFETY FEATURES AND CONTROL PANEL

Description02

03

04

05

06

HOT WATER PERFORMANCE

TECHNICAL DATA

DIMENSIONS

Technical characteristics08

12

14

HEATING CONNECTION

HOT WATER CONNECTION

ELECTRICAL CONNECTION

FLUE GAS CIRCUIT

FLUE CONNECTIONS

Connections16

17

18

22

22

BURNERS OFFERED

APPROVED GAS CATEGORIES

BG 2000 PREMIX GAS BURNERS - DESCRIPTION OF OPERATION

BG 2000 PREMIX GAS BURNERS - TECHNICAL DATA

ATMOSPHERIC GAS BURNERS - TECHNICAL DATA

OIL BURNERS - TECHNICAL DATA

ACV/MCBA ELECTRONIC CONTROLLER

Burners and controller24

24

24

26

27

27

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PROJECT DESIGN

LAYOUTS: HOT WATER FUNCTION

LAYOUTS: HOT WATER & HEATING FUNCTION

Examples of systems30

31

32

HOT WATER & HEATING ACCESSORIESAccessories

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DESCRIPTION FOR SPECIFICATIONSpecification

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DESCRIPTION

A single productcatering for themost demandinghot water andheating needs

INTRODUCTION

HeatMaster71-101

HeatMaster70-100

HeatMasterJumbo

120-150

HeatMaster30-60

HeatMaster29 G - 30 G

30 GP

The HEATMASTER is a high performance hot water producer:

its annular Tank in Tank holds a limited volume of hot water

for peak demand, and becomes an indirect heat exchanger

in continuous production mode. It therefore combines

the advantages of a hot water producer with integrated

storage and of an instantaneous water heater, while avoiding

the disadvantages of space, cost and efficiency of the first

and the scaling problems of the second.

Like all ACV stainless steel Tank in Tank products, it can

operate at high temperature (over 90C) with very corrosive

water such as sea water.

Finally, the HEATMASTER has a primary circuit and can

therefore also be used as a central heating boiler.

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HEATMASTER RANGE

MODEL PERFORMANCE [1] BURNER

[1] Performance figures obtained with the following parameters: Hot water setting 90C Cold water temperature 10C Hot water temperature 45C

HeatMaster30 N60 N

Multi-fuel: version N is compatiblewith BG 2000 S/35 and S/60 burners(on/off - gas), or BM 101 or 102 Nburners (oil). Also, HM 30 and 60operate with any type of approvedburner available on the market.

FuelNatural Gas Propane Butane Oil Kerosene

Input kWFlow rate 10 L/10Flow rate 60 L/60Continuous flow L/h

30 N 60 N34.9 69.9320 378963 1656772 1573

HeatMaster29 G30 G30 GP

The HM 29, 30 G and 30 GP arefitted with atmospheric gasburners with electric ignition.



29 G 30 G 30 GP33.0 39.2 40.0326 326 326918 1016 1030710 828 845

HeatMaster70 N100 N

Multi-fuel: version N is compatiblewith BG 2000 S/70 and S/100burners (on/off - gas), or BMburners (oil). Also, HM 70 and 100operate with any type of approvedburner available on the market.



70 N 100 N69.9 107543 7771794 26801573 2379

HeatMaster71101

HM 71 and 101 are fitted with BG2000 M premix modulating burners.They are extraordinarily simple tostart, and are very quiet andenvironment friendly. The burnerhead is NIT coated with a doubleignition-ionisation electrode.



71 10120.0/69.9 25.0/107.0

543 7771794 26801573 2379

HeatMaster120 Jumbo150 Jumbo

Multi-fuel: the HM JUMBO iscompatible with BM 151 or 152 Nburners (oil) and any type ofapproved burner available on themarket.



Jumbo 120 Jumbo 150115.0 154.01289 12893450 41382593 3419

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DESCRIPTION

DESIGN FEATURES

OUTER BODYcontaining the heating circuitThe outer body containing theprimary fluid is made of thickcarbon steel.

EXCHANGER/STORAGETank-in-Tank typeThe hot water tank is annularwith a large heat exchangesurface. It is made of stainlesssteel and entirely TIG (TungstenInert Gas) welded. The tank iscorrugated over its full height(by an exclusive manufacturingprocess) giving it highmechanical strength and anextremely effective anti-scalingfunction.

FILLING VALVEwith removable hose andnon-return valve

COLD WATER INLET(secondary)

EXPANSION TANKThe expansion capacity issufficient for operation in hotwater mode only.

LOADING PUMP

PRIMARY CIRCUITfor heating the tank indirectlyThis circuit distributes the heatover the tank walls and preventsscale forming inside.

JACKETAll models have a steel outerjacket that has undergonedegreasing and phosphatingbefore being stove enamelledat 220C.

AUTOMATIC AIR VENT

FLUE REDUCTION COLLAR

HEATING FLOW PIPE(primary)

HOT WATER OUTLET(secondary)With dip tube for NTCtemperature sensor.

FLUE PIPES AND BAFFLESHeatMaster models contain avarying number of steel fluepipes, depending on output, withan internal diameter of 64 mm.Each pipe is fitted with a specialsteel baffle designed to improveheat exchange and reduce fluegas temperature.

INSULATIONThe boiler body is fully insulatedin rigid polyurethane foam witha high thermal insulationcoefficient.

HEATING RETURN

COMBUSTION CHAMBERThe combustion chamber onHeatMaster models is entirelywater cooled by the primarycircuit (except HM 29, 30 G andGP).

BURNERAll HeatMaster models can befitted with a gas burner(atmospheric, premix on/off orpremix modulating), an ACV oilburner and most approvedburners available on the market.

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DESCRIPTION OF OPERATION

Figure ATraditional water heater

Advantages of theHeatMaster

Figure BHeatMaster

TANK IN TANKThe HeatMaster series differs from traditional hot waterproducers because of its ring-shaped tank immersed in theprimary fluid contained in the outer body. The inner tank isitself a stainless steel heat exchanger with a large surfacearea that enables the water to be reheated very quickly.

SELF-DESCALINGHeatMaster technology (figure B) provides an effectivesolution to the problem of scaling affecting traditional waterheaters (figure A). In these, the burner flame and flue gasesare in direct contact with the walls containing the hot water.This direct contact produces a transfer of heat at hightemperature which favours scale formation.

As scale is a poor heat conductor, its formation can cause:- overheating of the burner chamber plates which can

eventually lead to failure of the appliance;- a significant drop in performance and combustion efficiency.

In the HeatMaster, a neutral fluid (the primary circuit) isplaced between the combustion chamber and the flue pipesand the hot water tank. Heat is therefore transferred at amoderate temperature with no significant scaling takingplace.Also, as the tank is only fixed at the top, its walls oscillatewith the changes in pressure and this prevents scale formingon the walls.

Finally, the cold water injected in the stainless steel tankstrikes against the bottom of the tank and carries allsuspended particles into the system, helping to preventdeposits forming in the tank.This unique self-descaling feature ensures that the boileralways operates with maximum efficiency.

Operatingcycle

When there is a demand for hot water or heating, theHeatMaster temperature falls until the thermostat or controllersensor, positioned for rapid detection of an energy drawoff,starts the burner. The combustion gases quickly heat up theprimary fluid, and at the same time accelerate circulationaround the hot water tank.

This circulation facilitates heat exchange between the primaryfluid and the water to be heated, which occurs all over thetank surface.The corrugations on the inner and outer shells of the ring-shaped tank further increase the area of heat exchange andspeed up the process of heating the tank.

ReheatDrawoffStandby (no drawoff)

ANTI-LEGIONELLAEThanks to the large heat exchange surface of the inner tank,which is completely immersed, the hot water can bemaintained at a uniform minimum temperature of 60C,which prevents the formation of legionellae.

ANTI-BACTERIAThe temperature of the tank can always be kept high (typicallybetween 85 and 90C).At this temperature, most bacteria presenting a threat tovulnerable people (hospital patients, the elderly, ...) areeliminated thus doing away with the need for costly processof disinfecting the domestic hot water system.

Cut-off thermostatPreset to 95C

Primary safety valve3 bar

Safety thermostatPreset to 103C

Low waterpressure switchMinimum setting0.5 bar

Control thermostatAdjustable between60 and 90C






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DESCRIPTION

SAFETY FEATURES AND CONTROL PANEL

HEATMASTER29-30 G

30 GP30-60

HEATMASTER120-150 Jumbo

Safetythermostat

Optimiser

Cut-offthermostat

Fuse

On/offswitch

Socket (230V 50Hz)

Controlthermostat

Heating circuitlow water pressure

indicator

Combinedtemp/pressure

gauge

Power outlet

Heating circuitlow water pressureindicator

On/off switch

Safety thermostat

Cut-off thermostat

Combinedtemp/pressure gauge

Hot waterpriority relay

Optimiser

FuseControl thermostat

Socket (230V 50Hz)

Primary temp. sensorsNTC 1 and 2

Hot water temp.sensor NTC 3








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HEATMASTER70-100

HEATMASTER71-101

The 71/101 series is fitted with an electronic controller whichcontrols the temperatures of the safety devices, burneroperation (ignition, safety and modulation), and providesfacilities for adapting the controller to the desired application.The controller uses 3 temperature sensors located in theprimary circuit (NTC 1-2) and the secondary circuit (NTC 3).


gauge MCBAcontroller

display

On/off switch

Summer/winterselector


gauge

Burner safetyshutdown

warning light

Safetythermostat

indicator

Controlthermostat

Optimiser

Safetythermostat

Heating circuitlow waterpressureindicator

On/off switch

Summer/winterselector

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TECHNICAL CHARACTERISTICS

HOT WATER PERFORMANCE [1]

[1] Test conditions: Hot water setting 90C Cold water temperature 10 +/- 1C Accuracy +/- 2%

HM 29 G Drawoff duration (min) Continuous output Recovery time to set temperature (min)THot Water 10 20 30 40 50 60 L/h kW From 10C to 90 After 10 min drawoff

40 382 520 658 796 934 1072 829 28.9 33

45 326 444 563 681 799 918 710 28.9 33

50 277 380 484 587 691 795 622 28.9 32

60 203 286 368 451 534 617 497 28.9 29

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HM 30 G

40 382 543 704 865 1026 1187 966 33.7 28

45 326 464 602 740 878 1016 828 33.7 28

50 277 397 518 639 760 881 725 33.7 27

60 203 299 396 493 589 686 580 33.7 25

Drawoff duration (min) Continuous output Recovery time to set temperature (min)THot Water 10 20 30 40 50 60 L/h kW From 10C to 90 After 10 min drawoff

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HM 30 GP

40 382 546 711 875 1040 1204 986 34.4 28

45 326 467 608 749 890 1030 845 34.4 28

50 277 400 523 647 770 893 740 34.4 27

60 203 301 400 499 597 696 592 34.4 25


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HM 30 N

40 380 530 680 830.2 980.2 1130 900 31.4 30

45 320 449 577 706 834 963 772 31.4 30

50 275 388 500 613 725 838 675 31.4 29

60 201 291 381 471 561 651 540 31.4 27


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HM 60 N

40 474 694 1001 1313 1629 1942 1835 64.0 19

45 378 600 862 1127 1392 1656 1573 64.0 17

50 322 510 742 974 1206 1437 1376 64.0 17

60 245 396 563 743 925 1106 1101 64.0 16

70 193 264 380 462 571 681 791 55.2 15

80 135 164 249 333 417 499 455 37.0 12


17

HM 70 N

40 646 930 1233 1530 1831 2133 1835 64.0 25

45 543 785 1028 1276 1532 1794 1573 64.0 25

50 457 664 885 1113 1339 1567 1378 64.0 24

60 346 507 683 859 1038 1219 1067 64.0 23

70 268 390 528 673 821 971 918 64.0 21

80 207 246 332 432 530 636 580 47.2 19


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HM 100 N

40 905 1358 1817 2273 2719 3172 2776 96.8 23

45 777 1153 1528 1901 2282 2680 2379 96.8 23

50 666 979 1302 1637 1973 2309 2082 96.8 23

60 514 746 1010 1275 1544 1813 1665 96.8 22

70 343 500 670 855 1040 1226 1104 77 18

80 258 382 505 631 761 893 804 65 16


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HM 71

40 646 930 1233 1530 1831 2133 1835 64.0 25

45 543 785 1028 1276 1532 1794 1573 64.0 25

50 457 664 885 1113 1339 1567 1378 64.1 24

60 346 507 683 859 1038 1219 1067 64.0 23

70 268 390 528 673 821 971 715 64.0 21

80 203 277 377 486 598 710 675 54.9 19


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[1] Test conditions: Hot water setting 90C Cold water temperature 10 +/- 1C Accuracy +/- 2%

HM 150JUMBO

40 1504 2169 2833 3498 4163 4828 3989 139.1 27

45 1289 1859 2429 2998 3568 4138 3419 139.1 27

50 1115 1614 2112 2611 3109 3608 2991 139.1 27

60 870 1269 1668 2067 2465 2864 2393 139.1 26

70 700 986 1272 1559 1845 2131 1718 119.8 25

80 540 704 869 1033 1198 1362 987 80.3 23


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HM 120JUMBO

40 1504 2008 2512 3016 3521 4025 3025 105.5 36

45 1289 1721 2153 2585 3018 3450 2593 105.5 36

50 1115 1493 1871 2249 2627 3006 2269 105.5 35

60 870 1173 1475 1777 2080 2382 1815 105.5 35

70 700 952 1204 1456 1708 1960 1513 105.5 33

80 540 704 869 1033 1198 1362 987 80.3 30


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HM 101(107 kW)

40 905 1358 1817 2273 2719 3172 2776 96.8 23

45 777 1153 1528 1901 2282 2680 2379 96.8 23

50 666 979 1302 1637 1973 2309 2082 96.8 23

60 514 746 1010 1275 1544 1813 1665 96.8 22

70 385 562 753 961 1169 1378 1241 86.6 20

80 290 429 567 709 855 1003 903 73.5 18


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HOT WATER PERFORMANCE [1]

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HIGH FLOW RATES

Thanks to their high heat output and large heat exchange surface, HeatMaster producers offer both high flow rates andshort recovery times to the set temperature.

HIGHLY CORROSIVE WATER

ACV offers tanks made of DIN 1.4462 stainless steel for applications usinghighly corrosive water such as:

- thalassotherapy - heating sea water in HeatMasters and ACV indirect waterheaters;

- water with a high chloride content (such as well water in regions near acoastline or in areas rich in phosphates) or chlorine content (when theHeatMaster fresh water supply point is very close to a disinfection andchlorination plant in the mains system);

- industrial applications using water with an acid pH and rich in free negativeions.

DIN 1.4462 stainless steel is an austenitic-ferritic alloy with a high Chromiumand Molybdenum content: this grade is commonly known as Duplex 4462 orUranus, and should not be confused with the ordinary Duplex 2304 grade.This grade of stainless steel is the only one that can withstand extremeconcentrations of chlorides (up to 2.000 mg/L). This grade also gives doublethe mechanical strength of ordinary austenitic steels (series 3xx).

The full HeatMaster range up to model 100 and 101 is available optionally inSS DIN 1.4462 steel.

min

Flow

at

t 30

C (li

tres)

HeatMaster 150 Jumbo

HeatMaster 120 Jumbo

HeatMaster 100/101

HeatMaster 70/71

HeatMaster 60 N

HeatMaster 29 G, 30 G, 30 GP, 30 N

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[1]: T setting at 90C[2]: per standards EN 656 - EN 297 - EN 483[3]: electric power consumption figures given for N boilers (combined Oil/Gas) do not take account of burner consumption[4]: the maximum operating pressure of the primary circuit is for an open (atmospheric pressure) secondary circuit (tank)

TECHNICAL DATAFuel

Input kW

Rated output kW

Efficiency at 100% %

30% %

Flue losses [1] on %

off %

Other operating losses [1] %

CO2 at rated output %

Maximum NOx [2] mg/kWh

Maximum CO mg/kWh

Water circuits

Heating connection

Hot water connection

Primary fluid temperature maximum C

minimum C

Maximum pressure loss primary circuit mbar

tank mbar

Total capacity (primary circuit and tank) L

Primary circuit capacity L

Tank capacity L

Tank heat exchange surface m2

Number and capacity of expansion (vessel calibrated at 1 bar) nxL

Maximum operating pressure primary circuit [4] bar

tank bar

Test pressure of primary circuit bar

tank bar

Electrical parameters

Power supply V/Hz

Maximum power consumption W

Electrical protection IP

HM HM HM HM HM 30 N29 G 30 G 30 GP 30 N BG2000/S35

GAS GAS PROPANE GAS/OIL GAS

33.0 39.2 40.0 34.9 34.9

28.9 34.2 34.9 31.4 31.4

87.5 87.2 87.2 90.0 90.0

85.5 85.5 85.5 89.2 95.0

10.3 10.5 10.5 8.5 8.0

1.20 1.02 1.00 0.69 0.69

2.20 2.30 2.30 1.50 2.00

4.8 4.9 5.6 9.5 9.0

174 174 209 - 60

8 21 - - 0

1 1/4'' 1 1/4'' 1 1/4'' 1 1/2'' 1 1/2''

3/4'' 3/4'' 3/4'' 3/4'' 3/4''

90 90 90 90 90

60 60 60 60 60

25 29 29 27 27

20 20 20 20 20

163.5 163.5 163.5 162.0 162.0

87.5 87.5 87.5 82.0 82.0

76.0 76.0 76 80.0 80.0

2.46 2.46 2.46 2.46 2.46

1 x 8 1 x 8 1 x 8 1 x 8 1 x 8

3 3 3 3 3

10 10 10 10 10

4.5 4.5 4.5 4.5 4.5

13 13 13 13 13

230 / 50 230 / 50 230 / 50 230 / 50 230 / 50

82 82 82 82 [3] 160

30 30 30 30 30

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HM HM 60 N HM HM 70 N HM HM HM 100 N HM HM HM60 N BG2000/S60 70 N BG2000/S70 71 100 N BG2000/S100 101 120 JUMBO 150 JUMBO

GAS/OIL GAS GAS/OIL GAS GAS GAS/OIL GAS GAS GAS/OIL GAS/OIL

69.9 69.9 69.9 69.9 20.0 / 69.9 107.0 85.0 25.0 / 107.0 115.0 154.0

62.5 63.0 63.0 63.0 63.0 96.8 77.4 96.8 105.5 139.1

89.4 90.1 90.2 90.2 90.2 90.5 91.0 90.5 91.7 90.3

88.5 96.0 90.0 96.7 96.7 89.8 9.3 96.4 91.5 90.1

8.8 8.8 8.0 8.5 8.5 8.0 7.1 7.6 7.8 8.5

0.57 0.57 0.60 0.60 0.60 0.65 0.65 0.65 0.65 0.52

1.80 1.10 1.80 1.30 1.30 1.50 1.90 1.90 0.50 1.20

9.5 9.5 9.5 9.0 9.0 9.5 9.0 9.0 9.5 9.5

- 78 - 75 75 - 50 50 - -

- 29 - 3 3 - 24 24 - -

1 1/2'' 1 1/2'' 1 1/2'' 1 1/2'' 1 1/2'' 1 1/2'' 1 1/2'' 1 1/2'' DN 50 DN 50

3/4'' 3/4'' 1'' 1'' 1'' 1'' 1'' 1'' 2'' 2''

90 90 90 90 90 90 90 90 90 90

60 60 60 60 60 60 60 60 60 60

54 54 46 46 46 83 67 83 78 120

45 45 45 45 45 180 180 180 190 190

162.0 162.0 239.0 239.0 239.0 330.0 330.0 330.0 645.0 645.0

82.0 82.0 108.0 108.0 108.0 130.0 130.0 130.0 245.0 245.0

80.0 80.0 131.0 131.0 131.0 200.0 200.0 200.0 400.0 400.0

2.46 2.46 3.14 3.14 3.14 3.95 3.95 3.95 5.30 5.30

1 x 8 1 x 8 2 x 10 2 x 10 2 x 10 2 x 10 2 x 10 2 x 10 4 x 8 4 x 8

3 3 3 3 3 3 3 3 3 3

10 10 10 10 10 10 10 10 10 10

4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5

13 13 13 13 13 13 13 13 13 13

230 / 50 230 / 50 230 / 50 230 / 50 230 / 50 230 / 50 230 / 50 230 / 50 230 / 50 230 / 50

82 [3] 160 93 [3] 160 180 93 [3] 180 200 300 [3] 300 [3]

30 30 30 30 30 30 30 30 30 30

Certification given by TECHNIGAZ (BE) number 0461

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DIMENSIONSA mm

B mm

C mm

D mm

E mm

F mm

G mm

H mm

J mm

K mm

Weight empty kg


1691 1691 1691 1698 1698

1513 1513 1513 1583 1583

538 538 538 538 538

801 801 801 625 801

540 540 540 540 540

390 390 390 390 390

150 150 150 150 150

898 898 898 898 898

281 281 281 281 281

1560 1560 1560 1560 1560

190 190 191 220 230

[1]: the widths and depths given are for the HeatMaster fully assembled and fitted with a BM burner

HEATMASTER

29 G30 G

30 GP30 N60 N

HEATMASTER

120 JUMBO150 JUMBO

Version N coupled to BG 2000 S

DGF

E

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HBK

A

C

C/2

GF

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C/2

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1698 1698 1743 1743 1743 2093 2093 2093 2124 2124

1583 1583 1630 1630 1630 2030 2030 2030 2117 2117

538 538 680 680 680 680 680 680 1020 [1] 1020 [1]

625 801 797 937 937 797 937 937 1440 [1] 1440 [1]

540 540 680 680 680 680 680 680 1020 [1] 1020 [1]

390 390 390 390 390 390 390 390 600 600

150 150 150 150 150 150 150 150 250 250

1098 1098 1289 1289 1289 1693 1693 1693 1383 1383

281 281 285 285 285 285 285 285 590 590

1665 1665 1720 1720 1720 2120 2120 2120 2226 2250

220 232 270 282 282 320 333 335 530 530

HEATMASTER

70 N100 N

HEATMASTER

71101

Version N coupled to BG 2000 S

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CONNECTIONS

HEATING CONNECTION

The HeatMaster has two couplings at the rear that can be used to connect a central heating circuit. If the heating flowtemperature needs to be less than the hot water temperature setting then a mixing valve should be fitted to the heatingcircuit.

EXPANSION TANKThe HM 29/30/60 range is fitted with an 8L expansion tank. HM 70/100 models are delivered with two 10L expansiontanks, and HM Jumbos with four 8L expansion tanks. The expansion tanks are dimensioned for hot water operationonly. If the primary circuit is connected to a heating circuit then the expansion capacity needed should be added to theconfiguration.

Example of a basic circuit configuration1. Outside temperature sensor2. ACV independent controller3. Three-way mixing valve4. Isolating valve5. Heating circulator6. Non-return valve7. Flow temperature sensor8. Heating circuit9. Room temperature sensor

10. Heating expansion tank11. Heating circuit drain

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3 3

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1 17

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HOT WATER CONNECTION

PRESSURE REDUCERIf the mains water pressure is greater than 6 bar, a pressure reducer calibrated to 4.5 bar must be fitted.

SAFETY VALVEThe safety valve is set to 7 bar and must be ACV approved. The valve discharge must be connected to the main drain.

HOT WATER EXPANSION TANKThe hot water expansion tank stops water being discharged through the safety valve when the system is warming up.It also protects the system against ordinary water hammer.

HOT WATER CIRCULATION LOOPIf the drawoff point is situated at a distance, then installing a circulation loop ensures a contstant supply of instant hotwater.

THERMOSTATIC MIXERAs a safety measure against burns, we strongly recommend installing a thermostatic mixing valve. It also providesoptimum comfort and reduces energy consumption (recommended distribution temperature: 60C).To limit line losses in applications with a recirculation loop, we recommend choosing a thermostatic mixing valve fittedwith a temperature control of the recirculation loop.

IMPORTANTThe HeatMasters hot water tank must always be filled and pressurised before the primary circuit.For the operating procedure, the installing engineer should refer to the installation and commissioning instructions.

1. Isolating valve2. Pressure reducer3. Non-return valve4. Expansion tank5. Safety valve6. Drain7. Air vent8. Thermostatic mixing valve9. Recirculation temperature

thermostatic control valve10. Circulation pump11. Drawoff point

59

2

7

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116

4

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10

103C95C

60 to 90C

6.3 A

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CONNECTIONS


POWER SUPPLYThe boiler operates with a 230 V - 50 Hz single phase supply. An on-off switch box with 6 A fuses must be fitted outsidethe boiler to allow power to be shut off during servicing and before any repairs are carried out on the boiler.

CONFORMITYBoiler installation must comply with the prevailing local standards and legislation.

SAFETYThe stainless steel tank must be earthed separately.

HEATMASTER29 G30 G

30 GP

1. 230 V Plug2. On/off switch3. Manual reset safety thermostat4. Low water pressure switch

indicator lamp5. Low water pressure switch6. Optimiser7. Loading pump8. Cut-off thermostat 95C9. Control thermostat

10. 230 V socket for measuringinstruments

11. Spill switch

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10

11

2

13

6

5

4

7 8

9

12

1415

103C

95C

10 - 100C

6.3 A

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HEATMASTER120 JUMBO150 JUMBO

1. 230 V Plug2. On/off switch3. Manual reset safety thermostat4. Low water pressure switch

indicator lamp5. Low water pressure switch6. Optimiser7. Loading pump8. Heating circulator (option)9. Burner plug connector

10. Cut-off thermostat 95C11. Control thermostat12. 230 V socket for measuring

instruments13. Hot water priority relay14. Room thermostat (option)15. Flow pressure switch (option)

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5

6

7

8

10

12 13

14

15

16

17

103C

95C

60 to 90C

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CONNECTIONS


HEATMASTER30 N60 N70 N

100 N

1. 230 V Plug2. On/off switch3. Reset safety thermostat

indicator lamp (70 - 100 N)4. Manual reset safety

thermostat5. Low water pressure switch

indicator lamp6. Low water pressure switch7. Optimiser8. Summer/winter selector9. Hot water priority thermostat

10. Burner safety shutdownwarning lamp (70 - 100 N)

11. Room thermostat12. Heating circulator13. Loading pump14. Burner plug connector15. Flow pressure switch16. Cut-off thermostat 95C17. Control thermostat

13 14 15 17

16

7 8 9 10 11 12

3

4

5 6

21

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HEATMASTER71

101

1. 7-pin burner plug connector(230 V)

2. 4-pin burner plug connector(24 V)

3. On/off switch4. Power and pump connection5. Heating circulator6. Loading pump7. Room thermostat8. Low water pressure switch9. Primary temperature sensor

NTC 110. Primary temperature sensor

NTC 211. Hot water temperature sensor

NTC 312. Summer/winter selector13. Fan 230 V power supply14. Fan PWM15. Gas valve rectifier16. Second gas valve rectifier

(HM 101)17. Gas pressure switch (option)

BA

B

F

E

> 1000 mm

> 200 mm

DD

C

> 400 mm

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CONNECTIONS

CHIMNEY CONNECTION

[1]: the data for N boilers (combined Oil/Gas) correspond to the CO2 reference values given on pages 12-13

In the absence of single European standards for B23 and B11BS connections, each system must comply with the technical regulationsapplicable in the country of installation. The following diagrams show the regulations applicable in Belgium.

A Top ventB Bottom ventCD Height and diameter

according to regulationsE Draught regulatorF Servicing hatch

FLUE GAS CIRCUITCombustion chamber volume m3

Mass rate of combustion products [1] g/sec

Flue circuit pressure loss mbar

Maximum allowable draught mbar

Chimney outlet diameter mm

Maximum net flue temperature C

Air intake and flue connections [2] B11BS

B23

C13

C33

C53


- - - 0.051 0.051

20.8 24.5 25.9 15.2 16.0

0.00 0.00 0.00 0.01 0.01

-0.10 -0.10 -0.10 -0.15 -0.15

153 153 153 150 150

106 117 125 180 163

Yes Yes Yes - -

- - - Yes Yes

- - - - -

- - - - -

- - - - -

C13

C33

C53

C53

2 m

min

.

150

min

.

120 CO

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[2]: the connection configurations indicated are applicable provided they are permitted by the prevailing regulations in the country concerned


0.051 0.051 0.075 0.075 0.075 0.075 0.075 0.075 0.15 0.15

30.6 32.1 30.6 32.1 32.1 46.9 40.8 51.4 51.0 68.0

0.6 0.6 0.6 0.6 0.6 1.4 0.9 1.4 0.3 0.6

-0.20 -0.20 -0.20 -0.20 -0.20 -0.30 -0.30 -0.30 -0.30 -0.35

150 150 150 150 150 150 150 150 250 250

195 186 170 172 172 170 145 154 165 181

- - - - - - - - - -

Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes

- Yes - Yes Yes - Yes Yes - -



C13: air intake and flue at the samepressure in a horizontal concentricconnection

C33: air intake and flue at the samepressure in a vertical or parallelconcentric connection

C53: air intake and flue in differentpressure zones

CONNECTION FOR SEALED COMBUSTION

AB C

D

E

F

G

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BURNERS AND CONTROLLER

Atmospheric

BG 2000 S/35

BG 2000 S/60

BG 2000 S/70

BG 2000 S/100

BG 2000 M/70

BG 2000 M/100

OTHERS

BMR 31

BM 101

BM 151

OTHERS

BURNERS OFFERED

GAS

OIL

HM29G

HM30GP

HM30G

HM30N

SERIES

OPTION

[1]: N boilers (combined Oil/Gas) must be approved with the corresponding gas burner

I2E+

I2E(S)B

I2Er

I2ELL

I2H

I2L

I3P

BE - FR

LU - DE

AT - DK - ES - GB - IT - PT - IE - SE

NL

BE - FR - ES - GB - IE - PT

APPROVED GAS CATEGORIES [1]HM HM HM HM HM 30 N29 G 30 G 30 GP 30 N BG2000/S35

- Yes - - -

- - - - Yes

- - - - Yes

- - - - Yes

Yes Yes - - Yes

- Yes - - Yes

- - Yes - Yes

BG 2000 PREMIX GAS BURNERS - Description of operation

ACV BG 2000 S burners belong to the air/gas premix family of gas burners.ACV burners are fitted with a Honeywell gas valve, a venturi and an electrically operated relay. The gas valve has beenspecially developed for low NOx burners with automatic ignition and ionisation flame detection.

A. AirB. VenturiC. FanD. Air-gas mixtureE. Gas flow adjustment screwF. Offset regulating screwG. Gas

The fan sucks air through the venturi producing a pressure differential, dependent on the flow rate, in the neck of theventuri. In addition, the gas pressure at the valve outlet is equal to the air pressure in the neck of the venturi, less theoffset. Gas is sucked through the venturi and is mixed thoroughly with the air in the fan. The optimised air-gas mixtureis then forced into the burner and combustion spreads evenly around the burner head.

BU

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ND

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25

HM150 JUMBO

HM120 JUMBO

HM101

HM71

HM100N

HM70N

HM60N


- - - - - - - - - -







ADVANTAGES EASY INSTALLATION AND ADJUSTMENTEasy adjustment: the gas flow (and therefore the rate of CO2) is adjusted by a regulating screw situated on the venturi;the fan rotation speed is adjusted by a potentiometer. All BG 2000-S burners are preset at the factory.

THE COMFORT OF SILENCELighting and operation are much quieter than with forced draught burners.

EASY MAINTENANCENo maintenance required. Faults are easily diagnosed. Components are standard.

MAXIMUM SAFETYThe venturi technology combined with the Honeywell gas valve ensures completely safe operation: if there is an air blockage, the pressure differential in the venturi neck falls, the gas flow diminishes, and the burner

performs a safety shutdown due to flame failure if there is a blockage in the flue outlet, the air flow diminishes, as does the pressure differential in the venturi neck,

causing the gas to be shut off and the burner to shut down in safety mode due to flame failure.

NIT BURNERHEAD

The burner head on ACV BG 2000 burners of 60 kW and over is coated with ametal fibre (NIT) that sharply reduces NOx emissions (typically less than 60mg/KWh), and also extends the life of the burner significantly.

Finally, the quantity of energy transmitted by radiation is significantly higher thanwith an ordinary burner head, which helps to improve thermal efficiency in thecombustion chamber, especially at low loads.

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BG 2000 PREMIX GAS BURNERS - Technical Data

BG 2000 S

BG 2000 M The BG 2000 M burner continually adjusts output to demand, significantly improving efficiency in heating mode. TheBG 2000 M burner fitted to the HeatMaster 71 and 101 is regulated by an ACV/MCBA (Honeywell) controller whichcontrols both the operating safety and modulation of the burner.

[1]: Propane

Input kW

Rated output kW

Combustion efficiency - natural gas %

CO2 %

Gas G20 - 20 mbar - I 2E(S)B - I 2Er - I 2H - I 2ELL

Flow rate m3/h

Gas G25 - 25 mbar - I 2L

Flow rate m3/h

Gas G31 - 37/50 mbar - I 3P

Flow rate m3/h

Net flue gas temperature C

Mass rate of combustion products g/sec

HM 71 HM 101

22.0/69.9 25.0/107.0 - 22.0/110 [1]

18.4/63.0 23.0/96.3 - 20.2/99 [1]

92.0 92.1

9.0 9.5

2.12/7.40 2.64/11.32

2.46/8.60 3.08/13.17

0.82/2.86 0.94/4.50

172 165

9.2/32.1 11.5/49.2

Input kW

Rated output kW

Combustion efficiency %

CO2 %


Flow rate m3/h


Flow rate m3/h

Gas G31 - 37/50 mbar - I 3P

Flow rate m3/h

Net flue gas temperature C

Mass rate of combustion products g/sec

HM 30 N HM 60 N HM 70 N HM 100 N(BG 2000 S/35) (BG 2000 S/60) (BG 2000 S/70) (BG 2000 S/100)

34.9 69.9 69.9 85.0

31.4 63.0 63.0 77.4

92.0 91.2 91.5 92.9

9.0 9.5 9.0 9.0

3.7 7.40 7.40 8.99

- 8.60 8.60 10.46

1.43 2.86 2.86 3.47

173 186 172 145

16 32.1 32.1 39.1

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ATMOSPHERIC GAS BURNERS - Technical Data

These atmospheric burners are fitted with a SIT gas valve and an electrically operated relay. This gas valve has beenspecially developed for atmospheric burners with automatic ignition and ionisation flame detection.

ADVANTAGE- No pilot flame, therefore no gas consumption when the boiler is off.

Input kW

Rated output kW

Injector 1/100 mm


Burner pressure mbar

Flow rate m3/h



Flow rate m3/h

Gas G31 - 37/50 mbar - I 3P


Flow rate m3/h

HM 29G HM 30G HM 30GP

33.0 39.2 40.0

29.0 34.2 39.4

470 510 3 x 190

12.8 12.3 -

3.50 4.13 -

13.4 13.4 -

3.88 4.50 -

- - 28.5

- - 1.66

BM 101BM 151

OIL BURNERS - Technical data

ACV medium output oil burners meet current environmental requirements. These burners are fitted with standard highquality components including a two-stage oil pump that permits incremental lighting.

AVANTAGES- Easy to install- Fitted with a safety shutdown device and a new burner

mounting system- The burner air pressure adjusts to the pressure in the

combustion chamber- An automatic valve shuts off the air flow when the burner

is turned off, preventing the boiler from cooling- Quiet and highly reliable

- Adjustable to the depth of the boiler combustion chamberthanks to the deflector plate adjustable bracket

- Three air adjustment points to ensure the best air/oilmixture upstream air presetting primary setting combustion head setting.

Input kW

Nozzle flow US Gal/h

Nozzle angle

Oil flow kg/h

Pump pressure bar

HM 30 N HM 60 N HM 70 N HM 100 N HM 120 J HM 150 J(BMR 31) (BM 101) (BM 101) (BM 101) (BM 151) (BM 151)

34.9 69.9 69.9 107.0 115.0 154.0

0.85 1.50 1.50 2.00 2.50 3.00

60 60 60 60 60 60

2.94 5.9 9.09 8.92 9.7 13.0

11 10.5 14 13.5 10.2 13.5

CB

A

E

H

D

G

F

MODE EAU CHAUDE MODE CHAUFFAGE

Hot Watertemperature

Loadingpump

Heatingcirculator

Setting + diff. OFF

Setting

Setting + diff. ON

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ACV/MCBA ELECTRONIC CONTROLLER

HeatMasters 71 and 101 are fitted with an ACV/MCBA (Honeywell Gasmodul) electronic controller. This controllerregulates the boiler (start-up, safety, modulation), the loading pump and the heating circulator in response to heatingand hot water demand.

This controller offers numerous advanced features: Hot water priority is extremely accurate: even very small drawoffs are immediately detected The hot water tank is always kept at a uniform maximum temperature Hot water performance (temperature of water drawn off at more than 70C) is optimum HeatMasters 71 and 101 are particularly suited to central heating thanks to their large output modulation range Energy efficiency is optimised in both operating modes - Hot Water and Heating

Location ofNTC sensors

The temperature of HeatMasters 71 and 101 is measured constantly by 3 NTC (Negative Temperature Coefficient) sensors: Sensor NTC 1 is placed at the highest point in the primary circuit and measures the temperature of the primary circuit. Sensor NTC 2 is next to sensor NTC 1 and acts as a cross-check, which makes a safety thermostat unnecessary. Sensor NTC 3 is located at the bottom of a dip tube immersed in the Hot Water tank and very quickly detects the smallest

amounts of cold water entering the tank.

The temperature mesured by sensor NTC 3 determines the operating mode of the HeatMaster: Hot Water mode when the measured temperature is lower than the Hot Water temperature setting Heating mode when the measured temperature is higher than the Hot Water temperature settingThe HeatMaster gives priority to the Hot Water mode. The Hot Water temperature setting and the operating temperature(equivalent to the temperature of the heating circuit) are set by the user.

Operation

A. MCBA controllerB. Maximum T sensor NTC1 (primary)C. Safety sensor NTC2 for checking NTC1

sensor (primary)D. Hot Water tank T sensor NTC3E. Hot Water loading loopF. Heating circulatorG. Room thermostatH. BG 2000 M burner

HOT WATER MODE HEATING MODE

Schematic section ofHeatMaster 71 and 101

When Hot Water is drawn off, coldwater enters the tank. Sensor NTC 3very quickly detects this cold waterflow and when the measuredtemperature falls below the Hot Watertemperature setting (taking intoaccount a differential), the MCBAcontroller switches to Hot Water mode:the loading pump is activated and theheating circulator is stopped.In Hot Water mode, the temperaturesetting for the primary circuit isautomatically set to 3C above the HotWater temperature setting.

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The BG 2000 M burner starts as soon as the temperature measured by sensor NTC 1 falls below this set value. Thecontroller adjusts the boiler output in accordance with the difference between the heating temperature setting and thetemperature measured by sensor NTC 1.When the temperature measured by sensor NTC 3 again reaches the Hot Water setting of the tank, the MCBA controllerswitches to heating mode: the loading pump is stopped and the heating circulator is activated. The BG 2000 M burneris controlled by the temperature measured by sensor NTC 1. When the room thermostat reaches its set temperature,the controller stops the heating circulator.

Burneroutput

Boilertemperature

Heatingcirculator

Heatingdemand

Max

Min

Setting + diff. OFF

Setting

Setting + diff. ON

The heating temperature setting is setby the user at between 60 and 90C (itmust be higher than the Hot Watertemperature setting). The burner startswhen the temperature measured bysensor NTC 1 falls below the settemperature (taking into account adifferential). Burner modulation is thencontrolled in accordance with thedifference between the temperaturemeasured by sensor NTC 1 and the settemperature. The controller operatesin Proportional Integral (PI) mode: theamplitude of fluctuation around the settemperature is small but more time isneeded to reach the set temperature.The inertia of the heating system is notsensitive to this phenomenon andburner operation and modulationstability are optimised.

HeatingMode

Burneroutput

Boilertemperature

Hot Watertemperature

Loadingpump

Hot waterdrawoff

Max

Min

Setting + diff. OFF

Setting

Setting + diff. ON

Setting + diff. OFF

Setting

Setting + diff. ON

The burner starts when thetemperature measured by NTC 1 fallsbelow the heating temperature setting(automatically set to the hot watertemperature setting + 3C in Hot Watermode). Burner modulation is thencontrolled by NTC 1. The controllerworks in Proportional IntegralDifferential (PID) operating mode: theamplitude of fluctuation around the settemperature of the primary circuit islarge but the set temperature isreached quicker, which is essential fora high performance Hot Waterproducer.

Hot WaterMode

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EXAMPLES OF SYSTEMS

PROJECT DESIGN

Your ACV contact will be pleased to demonstrate these tools for you and help you determine what is best for your needs.With ACV, project design, the installation of the hot water system and its operation are simplified immensely!

Along with this integrated tool, ACVhas developed a software programcalled Specialist on line, into whichdata on the hot water designrequirements of a project can beentered. This data is then transmittedto ACV Technical Support by e-mail,which produces a complete designspecification within 48 hours andsends it back to the design engineer.

Specialist on line

System diagramsproduced byArchimedes

From among the configurationsproposed, the engineer can chooseone that meets his criteria (connectionto an existing boiler, boiler redundancy,reserve peak capacity, reservecontinuous flow, ).

Finally Archimedes provides systemlayouts, technical data on theappliances selected and a technicaldescription for their specification.All this information can then be printedor transferred to a Word document orAutoCAD file.

Hot water production occupies an important place in most building equipmentprojects: system design includes a careful evaluation of the requirementsfollowed by the identification of sound, economically viable solutions that ensuremaximum comfort, high operating efficiency, faultless reliability and simple andcheap maintenance over the long term.

Designing such a system is not simple and a number of variables must beconsidered: the timing of drawoffs, the length and frequency of peak periods ofuse, and various parameters related with the specific nature of the application.

ArchimedesCD ROM

As a leading designer and manufacturer of hot water production systems, ACVhas special experience in system design. This has been translated into a simplebut effective computer tool, Archimedes.This tool allows engineers to calculate hot water requirements in a wide varietyof applications (hotels, hospitals, sports centres, campsites, health units,industrial processing, ), and to propose several configurations that meet thedesign requirements.

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LAYOUTS: Hot Water Function

CAUTIONThe hydraulic layouts proposed are merely functional layouts. For greater clarity, they exclude some of the safety (safety unit, expansion tank, ...) or operatingcomponents (balancing valves, filling system, ...) that may be necessary. The heating and/or installing engineer should see to it that all equipment needed forthe particular applications implemented is included.

Several HeatMasters in parallel

The HeatMasters hot water circuits areconnected in parallel and the primarycircuits are interconnected: this allowsthe whole storage volume of theHeatMasters to be used, even if one ofthe burners is down. The hot waterperformance of the configuration isequal to the sum of the individualperformances of each HeatMaster.

The Hot Water performance of thisconfiguration is: 10 peak flow = 10 peak flow of HeatMaster

+ 10 peak flow of indirect water heater 60 peak flow = 60 peak flow of HeatMaster

+ 10 peak flow of indirect water heater Continuous flow = Continuous flow of

HeatMaster

HeatMaster with indirect water heater

The indirect water heater is placedupstream of the HeatMaster because: This configuration limits the number

of burner stop/start cycles when smallquantities are drawn off, and reducesoperating costs

The indirect water heater can be themulti-energy type and use energy fromother sources (e.g. solar collectors)

HeatMaster with low or mediumtemperature indirect water heater

The indirect water heater is placedupstream of the HeatMaster and usesthe preheating energy provided by asolar collector, or by another lowtemperature source such as a heat pumpor the condensor of a cooling unit.

The HeatMaster brings the hot waterup to the set temperature during drawoffand reduces overall energy consumptionwhile giving superior hot waterperformance.

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EXAMPLES OF SYSTEMS

LAYOUTS: Hot Water & Heating Functions

HeatMaster alone and HeatMaster withan indirect water heater

The heating circuit is connected directlyto the HeatMaster primary circuit andthe heating circulator is controlled eitherby the room thermostat connected tothe HeatMaster (depending on models),or by a separate controller. TheHeatMaster operates at hightemperature (85 - 90C) to optimise itshot water performance and a three-wayvalve is used in the heating circuit if thetemperature has to be set lower thanthat of the HeatMaster. Except in aspecial application with large heatingrequirements, the design computationallows for the full output of theHeatMaster to be available for theheating function.

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The primary circuits of the HeatMasters (type 71 or 101) are connected in parallel to one balanced header. An external ACV controller (1 or moreControl Units) measures the temperature in the balanced header and adjusts the temperatures of each heating circuit.On detecting a heating demand, the controller inputs a heating demand to each HeatMaster progressively. Priority for the Hot Water function isretained by each HeatMaster.This configuration can also be adopted (without the modulation function) with HeatMasters N using the appropriate analogical controllers.

HeatMaster and high temperature boiler

One or more HeatMasters can beconnected to the same balanced headeras a high temperature boiler (for example,a high power boiler). The primary circuitsof the HeatMasters are used inconjunction with the primary circuit ofthe high temperature boiler to providemaximum output for heating; which alsoallows the system to be used even whenone of the burners is down. The hotwater performance of the configurationis equal to the sum of the individualperformances of each HeatMaster.

Several HeatMasters with indirect waterheater and HT/LT heating circuits

Pmax: 240 kW Outside temperature per the standard: tNe - 12C

HeatMaster + Prestige available output: > 240 kWPrestige 160 kW cascade available output: 20-160 kW

Hours of operation of heating system

Heat

ing

dem

and

100%

Syst

em o

utpu

t (kW

)

Outs

ide

tem

pera

ture

(C)

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EXAMPLES OF SYSTEMS


ACV offers a range of wall-mountedmedium output condensing boilers (from40 to 80 kW) - the Prestige range - whichare easily configured in cascade.

HeatMaster and condensing boiler

One or more HeatMasters bring to acascade of condensing boilers theadditional heating power necessary forthe coldest days of winter. The followingdiagram shows that the condensingcascade is operated at maximum outputfor 5400 hours and that the HeatMastercontributes the additional power neededfor the 1400 hours during which theenergy requirement exceeds the poweravailable from the condensing cascade.The Hot Water function of theHeatMasters is operated with priority toheating, as in all standard heatingcascades.

COMPACT MIX Mixing valve for all configurations with circulation loop Distribution temperature adjustable from 30 to 60C Nickel plated steel body with circulation loop temperature regulation 2 regulating valves also serving as non-return valve 3 immersion thermometers Available in 6 diameters from 1/2'' to 2'' (DN 15 to 50) and circulation loop

of 1/2'' (diameters of 1/2'' and 3/4'') and 3/4'' (diameters of 1'' to 2'')

AC

CE

SS

OR

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HOT WATER & HEATING ACCESSORIES

ACCESSORIES

SIMPLE MIX Mixing valve for all configurations without circulation loop Distribution temperature adjustable from 30 to 60C Nickel plated steel body with immersion thermometer Available in 6 diameters from 1/2'' to 2'' (DN 15 to 50)

ACV offers a wide range of accessories to take maximum advantage of the HeatMasters functions, in both hot waterproduction and heating mode.

HOT WATEREXPANSION

TANKS

The hot water expansion tank has become an important accessory in hot water systems: it stops water being dischargedthrough the safety valve when the system is warming up.

In addition, due to the growing use of quick closing mixing valves, pipes and fittings are regularly submitted to suddenrises in pressure (water hammer), which subjects systems to high stresses. In this respect also, hot water expansiontanks provide effective protection for hot water systems.

HYDRO 5 5 L

HYDRO 8 8 L

HYDRO 12 12 L

HYDRO 18 18 L

Proposed sizes

For indirect water heaters up to 150 L and HeatMaster 29/30

For indirect water heaters up to 250 L and HeatMaster 60 & 70/71

For indirect water heaters up to 360 L and HeatMaster 100/101

For indirect water heaters up to 500 L and HeatMaster Jumbo

Models offeredACV offers a broad range in various countries both in and outside Europe.The models described here are available in most countries in continental Europe.

The temperature of the water stored in the best indirect water heaters can be very high: in all cases, the entire volumeof hot water stored in the tank (including the water at the bottom of the tank) must be kept at a minimum of 60C toprevent legionella bacteria developing, or in excess of 85C for other bacteria in a hospital environment for example.

To allow high temperature storage, distribution at a minimum 60C and to prevent burn risks in the event of a suddenmajor change in flow rate, ACV recommends the use of high quality thermostatic mixing valves.

THERMOSTATICMIXING VALVES

1 bar

2 bar

3 bar

4 bar

Sizes

1/2'' 3/4'' 1'' 1 1/4'' 1 1/2'' 2''

28 43 53 82 155 212

40 63 75 118 225 300

50 76 92 145 270 370

58 90 108 167 320 430

Flow rate L/minPressure

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ACCESSORIES

HOT WATER & HEATING ACCESSORIES

Balanced headers are used to separate the flows in the primary circuit (boilers) and secondary circuits (heating circuits)and make them independent. As a result, in multiple boiler and/or circuit systems, changes in flow rates do not affectthe operation of the control devices (boiler cascade, mixing valves of heating circuit, ...).

Sizing instructions

The output of boilers connected to a balanced header determines the flow rateto be achieved in the balanced header. This rate must permit the primary (boilers)and secondary (heating) circuits to be decoupled effectively. This rate also definesthe diameter of the balanced header and all related dimensions. Tables areavailable in the technical literature for identifying sizes quickly and reliably.

Models offeredACV offers a varied range in individual countries both in and outside Europe.

Balanced headers for connections of 1 1/2'' to 4''

BALANCEDHEADER

ACV offers a variety of controllers for different heating and/or hot water applicationsusing heating cascades, hot water cascades, and multi-zone high and lowtemperature heating systems.

These controllers can be used with all HeatMaster models. In addition, HeatMasters71, 101, which come fitted with an ACV/MCBA controller, can be included in thecontrol system to improve performance both in a heating cascade (individualoutput modulation) and a hot water cascade (tank temperature control).

Our specialists are ready to help you design the type of control that suits yourneeds, and even to propose a complete HeatMaster solution, including controland accessories.

CONTROLLERS

a

a

a

a

a

2a

Boilercircuit

Boilerinflow

Boilerreturn

Heatingcircuit(s)

a= 3x

When the supply pressure is too high, a pressure reducer saves the valves frompremature wear, reduces the intensity of water hammer and the risk of leaks,lowers noise pollution (vibration, hissing), improves user comfort by preventingdrawoff sputtering and facilitates blender and mixing valve settings.

Having the correct pressure in the hot water distribution circuit also limits waterconsumption and prevents wastage.

PRESSUREREDUCERS

The hot water safety unit comprises a 7 bar safety valve, a non-return valve andan isolating valve.

HOT WATERSAFETY UNIT

SP

EC

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DESCRIPTION FOR SPECIFICATION

High performance hot water producer of the semi-instantaneous indirect heating type.

PRIMARY CIRCUIT Steel heating body completely insulated in thick rigid polyurethane foam. Steel primary circuit with combustion chamber and flue pipes entirely immersed in the primary circuit. Flue pipes fitted

with baffles of special steel. Connections for a high temperature heating circuit. Complete with (i) primary circuit filling device, (ii) expansion capacity dimensioned for hot water production, (iii) safety

valve, (iv) low water pressure switch and (v) loading pump for forced circulation of primary fluid.

HOT WATER TANK Annular tank with a large surface area totally immersed in the primary circuit: contains a sufficient volume of hot water

for peak demand and is an indirect heat exchanger in continuous production mode. Tank walls corrugated over their full length: their oscillations prevent scale forming over the whole heat exchange

surface. Stainless steel tank for hot water at high temperature (90C). No protective anode. Anti-bacteria protection (legionellae).

BOILER BURNER AND CONTROL Atmospheric gas burner, electrically lit with thermocouple safety (model 30G = Natural Gas; model 30 GP = Propane). Flue connection B11BS. Wired control panel with (i) on/off switch, (ii) summer/winter selector, (iii) daily programmer, (iv) control thermostat,

(v) automatic reset thermostat, (vi) manual reset safety thermostat, (vii) combined temp/pressure gauge, (viii) safetylamps for low water pressure, burner failure and overheating.

MAIN TECHNICAL DATA Peak flow from 10 to 45C:

HM 29 G 326 L/10 918 L/60 710 L/hHM 30 G 326 L/10 1016 L/60 828 L/hHM 30 GP 326 L/10 1030 L/60 845 L/h

Rated output:28.9 kW (HM 29 G)34.2 kW (HM 30 G)34.9 kW (HM 30 GP)

Maximum operating pressure:primary: 3 barsecondary: 10 bar

Tank heat exchange surface: 2.46 m2 Manufacturer ACV HeatMaster models 29 G or 30 G or 30 GP

RECOMMENDED HEATING AND HOT WATER ACCESSORIES Thermostatic mixing valve Pressure reducer Flow limiter Hot water expansion tank

HEATMASTER29 G30 G

30 GP

SPECIFICATION

HEATMASTERN

120 JUMBO150 JUMBO


PRIMARY CIRCUIT Steel heating body completely insulated in thick rigid polyurethane foam or 120 mm rock wool. Steel primary circuit with combustion chamber and flue pipes entirely immersed in the primary circuit. Flue pipes fitted






BOILER BURNER AND CONTROL To be fitted with an approved on/off gas burner (premix or forced draught) or oil burner. Flue connection B23. Wired control panel with (i) on/off switch, (ii) summer/winter selector, (iii) daily programmer, (iv) control thermostat,



HM 30 N 320 L/10 963 L/60 772 L/hHM 60 N 378 L/10 1656 L/60 1573 L/hHM 70 N 543 L/10 1794 L/60 1573 L/hHM 100 N 777 L/10 2680 L/60 2379 L/hHM 120 Jumbo 1289 L/10 3450 L/60 2593 L/hHM 150 Jumbo 1289 L/10 4138 L/60 3419 L/h

Rated output:31.4 kW (HM 30 N)62.5 kW (HM 60 N)63.0 kW (HM 70 N)96.8 kW (HM 100 N)105.5 kW (HM 120 Jumbo)139.1 kW (HM 150 Jumbo)


Tank heat exchange surface:2.46 m2 (HM 30 N and 60 N)3.14 m2 (HM 70 N)3.95 m2 (HM 100 N)5.30 m2 (HM 120 Jumbo and 150 Jumbo)

Manufacturer ACV HeatMaster models 30 N or 60 N or 70 N or 100 N or 120 Jumbo or 150 Jumbo


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SPECIFICATION

HEATMASTERN

BG 2000-S/xx








BOILER BURNER AND CONTROL On/off premix natural gas or propane burner with safety ionisation electrode. NIT coated burner head (on HM 60, 70, 100) low NOx. Flue connections B23, C13, C33, C53. Wired control panel with (i) on/off switch, (ii) summer/winter selector, (iii) daily programmer, (iv) control thermostat,



HM 30 320 L/10 963 L/60 772 L/hHM 60 378 L/10 1656 L/60 1573 L/hHM 70 543 L/10 1794 L/60 1573 L/hHM 100 777 L/10 2680 L/60 2379 L/h

Rated output:31.4 kW (HM 30)62.5 kW (HM 60)63.0 kW (HM 70)77.4 kW (HM 100)


Tank heat exchange surface:2.46 m2 (HM 30 and 60)3.14 m2 (HM 70)3.95 m2 (HM 100)

Manufacturer ACV HeatMaster models 30 BG 2000-S/35 or 60 BG 2000-S/60 or 70 BG 2000-S/70 or 100 BG 2000-S/100


39

SP

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IFIC

ATIO

N






for peak demand and is an indirect heat exchanger in continuous production. Tank walls corrugated over their full length: their oscillations prevent scale forming over the whole heat exchange


BOILER BURNER AND CONTROL Modulating premix natural gas or propane burner with safety ionisation electrode. NIT coated low NOx burner head. Flue connections B23, C13, C33, C53. MCBA controller with 3 NTC type temperature sensors. User, installer and manufacturer interfaces. Self-diagnostic

function. Can be used in cascade and under remote control.


HM 71 543 L/10 1794 L/60 1573 L/hHM 101 777 L/10 2680 L/60 2379 L/h

Rated output:63.0 kW (HM 71)96.8 kW (HM 101)


Tank heat exchange surface:3.14 m2 (HM 71)3.95 m2 (HM 101)

Manufacturer ACV HeatMaster models 71 or 101


HEATMASTER71

101

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SPECIFICATION

ACV accepts no responsibility for any inaccuracy intranscribing or printing the present document.As ACV is commited to continuous improvement of itsproducts, ACV reserves the right to modify the technicalspecifications and components of its products withoutprior notice.

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ACV International nv/saKerkplein, 39B-1601 RUISBROEK - BELGIUMTEL.: +32 2 334 82 20 - FAX: +32 2 378 16 49E-MAIL: [email protected] sk

eda

com

Thanks to its state-of-the-art

technology, ACV offers reliable,

powerful, cost-effective and

environment-friendly solutions for

most demanding applications in

Domestic Hot Water for both

commercial and residential users.

ACV has become a world leader

distributing engineered products

in more than 40 countries over

5 continents.

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