ACV HeatMaster TC Service manual

HeatMaster© TC
TECHNICAL
Thanks to its state-of-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.
With the future in mind
LEGEND
ACV POLSKA sp. z o.o.
ul. Witosa 3
87-800 Włocławek
TEL.: [phone]
FAX: [phone]
E-MAIL: [e-mail]
www.acv.com

SIGN DESCRIPTION
A1 OUTSIDE TEMPERATURE SENSOR NTC4 (AF 120) for MCBA A2 OUTSIDE TEMPERATURE SENSOR AF 200 for CONTROL UNIT A3 CONTACT SENSOR NTC 6 to be mounted on the outlet of the mixed heating circuit for MCBA (when module AM3-11
is installed)
A4 POCKET SENSOR KVT
Installed in the hot water tanks and in the balanced header. Connected to the Control Unit.
A5 CONTACT SENSOR VF 202 to be mounted on the outlet of the mixed heating circuit for CONTROL UNIT (or when
module ZMC-1 installed). Allows weather dependent regulation.
A6 SENSOR KLF 1000 A7 SENSOR SPF 1000 A8 CONTACT SENSOR RAM
B AM 3-11 MODULE
Controls the second heating circuit - communicates directly with the MCBA. Operates with room thermostat.
C ZMC-1 MODULE
Controls the second heating circuit - alarm contact - operates only in cojunction with the Room Unit RSC. Needs RMCI installed directly in MCBA.
D COMMUNICATION MODULE RMCI
Enables communications between the MCBA and the Room Unit RSC.
E WEATHER DEPENDENT REGULATOR CONTROL UNIT
Regulates one or more boiler (cascade of max 8 boilers) HeatMaster TC with modulating burners. Allows control of 3 heating circuits (2 mixed, 1without mixer) and hot water production. Equipped with 2 outputs and 3 programmable inputs, allowing solar system and solid fuel boiler regulation. Installed in the wall mounting socket.
SIGN DESCRIPTION
F ROOM UNIT
Room regulator, controls heating and hot water production, installed inside of the building on the wall. Supplied with outside temperature sensor. Allows heating curve regulation, room and hot water temperature. Displays all tempera- tures. Connected to the terminals 10-11 of the boiler terminal block.
G ZONE UNIT
Shows internal temperature and allows for remote control of 1 heating circuit. Communicates with the Control Unit. For 3 heating circuits - max 3 Zone Units. Allows correction of the heating curve, temperatures and shows information from installed sensors. Connected to the Control Unit terminals 24-25. RFF Operates with the Control Unit. Can be mounted on every heating circuit. Connected to Control Unit terminals 24-25.
H ROOM THERMOSTAT
Installed inside the building on the wall. Controls room set temperature. Operates with MCBA. Connected to the boiler terminals 1-2 instead of the bridge.
I SOLAR CONTROLLER LAGO SD3
J COLLECTOR 2 or 3 CIRCUITS DN 20 or 32
Installed directly under the boiler. Allows connection of 2 heating circuits. Internal regulation of the by-pass allows it to become a balanced header.
K HIGH TEMPERATURE KIT DN 20 or 32
Installed to the collector under the boiler. Supplies high temperature circuit or water tank primaries. Includes: 1 circulation pump, 2 isolating valves, check valve, 2 thermometers.
L LOW TEMPERATURE KIT DN 20 or 32
Installed to the collector under the boiler. Supplies low temperature circuit and controls its temperature. Includes: 1 circulation pump, 2 isolating valves, check valve, 2 thermometers and the 3-way valve with the integrated by-pass.
M SOLAR PUMP GROUP
N DHW THERMOSTATIC MIXING VALVE O SOLAR PANEL
Hotel Orca Praia,
Portugal
2 HeatMaster TC, Solar
Collectors, solar tank
Forest Research
Institute
Sękocin Stary, Poland
1 HeatMaster 35 TC for
DHW only
Crieff Hydro,
UK
1 HeatMaster 35 TC
Villa House, Starowa
Góra, Poland
2 HeatMaster 35 TC,
SLME, Solar Collectors
for DHW and Heating
They chose ACV HeatMaster TC
Hotel Castle of Ordingen
Belgium
3x Heat Master 85 TC
DHW and Heating

ACV was founded in Brussels in 1922: our consistent focus over more than 85 years
has been to produce hot water and heating products that are innovative and of the
highest quality.
Through changing market conditions we have maintained our commitment to stain-
less steel as a core ingredient: in tanks, in heat exchangers and in leading edge de-
signs for our new condensing heat exchangers.
The innovation continues.
As a result of our commitment to research in engineering design we propose unique
products which are among the most efficient and reliable available. We integrate new
complementary technologies into our hot water and heating solutions as soon as they
make economic and ecological sense.
The HeatMaster TC is a fine example of how ACV puts these values into practice. In
the following pages we explain how the HeatMaster TC range is unique: why it is the
perfect choice where the demand for hot water is particularly high and yet where en-
ergy absolutely must be used responsibly. Its ground breaking design, the only model
of its kind which fully condenses during the heating and hot water modes, sets new
standards of performance for storage combination units.
You should find all you need to know as an introduction in this document about the
advanced design and superior performance of the HeatMaster TC: characteristics
which have already convinced some of the world’s largest retailers, most prestigious
hotels, prominent public buildings and residences to select its installation.
We want you and your customers to feel comfortable in choosing our products – and
we are happy to work with you to configure integrated hot water and heating systems
that will satisfy the most demanding expectations. We aim for our customer relation-
ships, like our products, to last.
Choosing an ACV product is a choice for the future.
With the future in mind

04
DESCRIPTION
INTRODUCTION
HeatMaster© TC TECHNICAL
Introducing
the total
condensing
storage
combination
boiler - the
HeatMaster TC
The HeatMaster TC - the only storage combination boiler to actually fully condense during both the hot water and
heating modes. This is thanks to the new patented stainless steel heat exchanger which advances proven Tank-in-
Tank technology. In the Kyoto era, with us all striving to reduce carbon emmissions, the HeatMaster TC is arguably
the most ecological gas boiler in the world.
Not only does the HeatMaster TC feature exceptional efficiency, but it is designed to cope with hot water demands
of larger properties and commercial applications: this means superb mains pressure hot water delivery which is
unrivalled in a boiler of this output, giving high volumes, fast recovery times and quick response to demand.
Also because HeatMaster TC is not a low water content boiler, it performs admirably when connected to older
existing heating systems, therefore making an excellent choice for upgrades.
In addition, the HeatMaster TC features a built-in full weather compensation facility,which allows the boiler to moni-
tor outside temperatures and adjust the boiler settings automatically, thus reducing energy consumption even
further. All of this is delivered by a single unit with a footprint of 60 cm by 67 cm (HM 35 TC) or of 70 cm by 73
cm (HM 85 TC).
ACV is once again leading the way and taking you close to the limits of condensing boiler technology.

05
DESCRIPTION
STAINLESS STEEL HEART
The heart of the new HeatMaster TC is ACV’s specially designed new stainless steel heat
exchanger, built on over 80 years experience in the manufacture of heating and hot water
products.
The combustion gases pass downwards through the heat exchanger tubes and condense in
the lower circuit of the HeatMaster TC, making maximum use of the energy available from
the combustion process. The result is a highly efficient combination boiler which gives excep-
tional output for its size.
Excellent resistance to corrosion
Stainless steel offers a high resistance to cor-
rosion from the internal primary water ways
which could contain system additives and
impurities. It is also resistant to the acidity
of condensate which forms in the flue ways,
and even to the presence of sulphur traces in
natural gas or propane.
Low maintenance
The stainless steel heat exchanger of the
HeatMaster TC is self-cleaning - as the con-
densate runs down the exchanger tubes, it
cleans any possible traces of combustion res-
idue. This ensures that the boiler continues
to function at maximum efficiency throughout
its life, and therefore maintenance require-
ments for the heat exchanger are reduced.
Stable boiler temperature control
Most boilers use a water tube for the combustion
process, however the stainless steel heat exchanger
of the HeatMaster TC has flue tubes running through
the sealed water jacket. Whilst this increases the
volume of water in the system, the benefit is that it
allows stable temperature control of the boiler and
minimises the risk of overheating due to varying wa-
ter flow rates.
High efficiency
The stainless steel heat exchanger flue tubes are de-
signed to reach an optimal heat exchange over their
entire length. The HeatMaster TC reaches an excep-
tional continuous output throughout the lifespan of
the boiler, since no oxidation occurs in the heat ex-
changer. Furthermore the fuel consumption of the
boiler is improved thanks to the reduced pressure
loss in the flue tubes.
The Tank-in-Tank is a DHW tank entirely immersed within an outer tank which contains the primary fluid,
with the inner tank itself being a stainless steel heat exchanger. The corrugated wall of the inner tank
forms a large heat exchange surface that can heat the domestic water in a very short time. It also pro-
vides a uniform temperature throughout the volume of the tank. Since the inner tank can move freely,
it can expand and contract under changes in pressure and prevent limescale forming on the surface.
Hot water on demand
Thanks to the large surface hot water is quickly heated up and storage volume can be kept to a minimum.
Hygienic clean DHW & Anti-Legionella
Legionellae are bacteria that are often found in the environment but also in the workplace: in domestic
hot water systems, cooling systems, air conditioning systems, etc. They can cause epidemics or isola-
ted cases of legionellosis (Legionaire’s disease). Legionellae remain in a latent state in cold water (below
20°C) and can proliferate in warm water (from 20°C up to 45°C). They can be eliminated (in a few
hours), however, at temperatures higher than 50°C – or in a few minutes above 60°C.
The “ Tank-in-Tank “ system prevents the formation of warm pockets because even the base of the in-
ner tank is a heat exchanger that remains at the temperature of the boiler (typically from 60 to 80°C):
thus, any “ Tank-in-Tank “ operating at 60°C ensures DHW that is free of legionellae and safe for the
consumer.
No anode protection
Thanks to stainless steel tank, there is no need to use an anode protection and the self descaling feature
eliminates needs of cleaning.
Self descaling
The internal tank is free to move, with its walls expanding and contracting under pressure variations
during operation.This impedes scaling on the surface of the heat exchanger: thus both efficiency and
performance remain constant throughout the lifetime of the tank

06
DESCRIPTION
HeatMaster© TC TECHNICAL
TOTAL CONDENSING: The HeatMaster TC combines the unique ACV Tank-in-Tank concept
with a dual primary circuit resulting in exceptional performance from a totally condensing
combination boiler.
Tank-in-Tank technology
ACV’s advanced implementation of thermal storage technology is tried and tested and is remarkably simple, efficient and reli-
able. At the heart of the HeatMaster TC is a stainless steel tank through which the flue tubes pass. This is surrounded by a mild
steel shell containing the primary water, which extends down to the combustion chamber and even around the flue tubes. The
burner fires onto the primary water which indirectly heats the stainless steel tank containing the hot water. As with all Tank-in-
Tanks, this is corrugated over its full height and is suspended in the HeatMaster TC by its hot and cold water connections. The
area of the heat transfer surface is therefore much greater than that of standard direct fired water heaters. A much larger
heat transfer surface means that Tank-in-Tank units recover much faster than any other kind of hot water
storage device - and keeps boiler cycling to a minimum. The high storage temperature within the inner tank also results in
exceptional hot water outputs.
Dual primary circuit technology
The HeatMaster TC primary circuit is split into two sections - a high temperature upper circuit and a low temperature lower
circuit, divided by a separation plate. The hot water storage tank is located in the upper circuit which always operates at a
temperature of between 60°C and 90°C. This is ideal for hot water production as it maintains the stored water at constantly
high temperatures, eliminating bacterial formation such as Legionellae, as well as resulting in high volume hot water produc-
tion. The down-firing flue tubes pass through the upper circuit, through the separation plate and into the lower circuit. The
primary water here operates at a temperature typically between 30°C and 60°C for heating (dependent on the heating return
temperature), perfect for condensing when working in heating mode.
Pre-heating tank technology
During hot water mode, the lower circuit operates at a much reduced temperature, typically 5°C to 20°C depending on the
cold water inlet temperature. The incoming cold water enters the lower primary circuit via a stainless steel tank which pre-
heats the domestic water prior to it passing into the upper stainless steel tank. As the pre-heating tank is wrapped around
the lower flue tubes, it is able to absorb the remaining heat from the flue gases, resulting in a fully condensing HeatMaster TC
during hot water mode either in full or part load conditions.
WORKING PRINCIPLE
cold water inlet
gas

07
WORKING PRINCIPLE
DESCRIPTION
HEATING
HOT WATER
HEATING & HOT WATER
The heating return enters the lower cir-
cuit of the boiler, which allows the boiler to
operate in condensing mode. The upper
circuit of the HeatMaster TC is kept at a
consistently high temperature due to the
internal shunt pump which ensures that
the primary water circulates around the
heat exchanger flue tubes.
With the upper circuit maintained at
high temperature, the HeatMaster TC is
always ready to supply hot water on de-
mand.
The cold water enters the lower tank [1]
and is pre-heated before entering the hot
water tank above. The low temperature
of the bottom circuit results in continu-
ous condensation of the flue gases in hot
water mode.
Once up to temperature, the HeatMas-
ter TC is capable of producing heating
and hot water simultaneously.

08
DESCRIPTION
HeatMaster© TC TECHNICAL
CONSTRUCTION - HeatMaster 35 TC
DOMESTIC HOT WATER
OUTLET
HEATING FLOW
STAINLESS STEEL
HEAT EXCHANGER
INDIRECT WATER PREHEATER
HEATING RETURN
COLD WATER INLET
MODULATING PREMIX
GAS BURNER
GAS CONNECTION
BOILER SHUNT PUMP
COMBUSTION CHAMBER
CONTROL PANEL
DRAIN COCK
POLYURETHANE
FOAM INSULATION
SEPARATION PLATE
CONDENSTRAP
PRIMARY SAFETY VALVE
(3 BAR)
FLUE CONNECTION CONCENTRIC
Ø 80/125 MM CONVERTIBLE TO
PARALLEL CONNECTION
Ø 80/80 MM.
PRIMARY HEATING CIRCUIT
STAINLESS STEEL
TANK-IN-TANK HOT WATER
STORE

CONSTRUCTION - HeatMaster 85 TC
09
DESCRIPTION
DOMESTIC HOT WATER
OUTLET
GAS CONNECTION
HEATING FLOW
AUXILIARY TANK PRIMARY
RETURN
HEATING RETURN
COLD WATER INLET
CONTROL PANEL
BOILER SHUNT PUMP
SEPARATION PLATE
PRIMARY SAFETY VALVE
(3 BAR)
FLUE CONNECTION CONCENTRIC
Ø 100/150 MM CONVERTIBLE TO
PARALLEL CONNECTION
Ø 100/100 MM
PRIMARY EXPANSION
VESSEL (2X)
COMBUSTION CHAMBER
STAINLESS STEEL
HEAT EXCHANGER
INDIRECT WATER PREHEATER
STAINLESS STEEL
TANK-IN-TANK HOT WATER
STORE
POLYURETHANE
FOAM INSULATION
PRIMARY HEATING CIRCUIT
MODULATING PREMIX
GAS BURNER
WYLOT KONDENSATU DRAIN COCK

10
DESCRIPTION
HeatMaster© TC TECHNICAL
GAS BURNER
THE INTELLIGENT
ACV BURNER
The innovative gas premix burner in the HeatMaster TC has been designed to
provide high efficiency and clean combustion. Premix technology makes it pos-
sible to perfectly mix gas and air before combustion, in all operating conditions
and to guarantee optimal efficiency with no hazardous emissions. In addition,
the burner modulates from about 25% to 100% of nominal capacity to adapt
power continuously to the current heat requirement: operating cycles are lon-
ger resulting in less starts and stops, less harmful emissions, less maintenance
and longer lifetime of the burner. Moreover, the burner head is covered with
a metallic fibre engineered both to withstand high thermal loads and to reach
near perfect radiant combustion mode at low load.
ECONOMIC OPERATION The HeatMaster TC is equipped with an inlet temperature sensor, an outlet tem-
perature sensor and a flue gas temperature sensor. All the sensors information
is transmitted to the MCBA that will precisely adapt the power of the burner for
the most efficient operation possible.
QUIET OPERATION OF THE
PREMIX BURNER
ACV has adopted BG 2000 M burners for HeatMaster TC boilers. This is a safe
and quiet air/gas premix burner that limits polluting emissions (Nox and CO) to
incredibly low levels. Although thoroughly modern, the ACV BG 2000 M burner
uses proven technology and widely distributed standard components.
The casing of the HeatMaster TC is made from insulated steel that completely
encloses the burner, guaranteeing extremely quiet operation. Also, the heat
emitted by the heat exchanger is recovered from the combustion gases, which
improves efficiency and prevents heat radiation.
Working principle of the
BG 2000M burnner
A. Air
B. Venturi tube
C. Fan
D. Air - gas mix
E. Gas flow rate adjustment screw
F. Offset adjustment screw
G. Gas

11
DESCRIPTION
MICROPROCESSOR CONTROL SYSTEM MCBA
HeatMaster TC is equipped with an integrated MicroproCessor Burner
Automate (MCBA) that controls the safety-functions of the boiler and of-
fers a wide band of built-in temperature controls, which can be selected
and adapted through a number of parameters, with different access
levels (end-user, service engineer, ...)
If an outside sensor is connected to the MCBA it becomes a complete
weather-dependent control, with the possibility of having night set-back
if an external clock is used.
An outside sensor connected to the MCBA will determine the basic flow
temperature. If the room thermostat contact remains closed for a lon-
ger period, the flow temperature setting will be increased by 10oC until
the desired room temperature is achieved. In this way an auto-adaptive
heating curve is achieved which combines the advantages of a fast heat-
up curve with the temperature stability of a standard weather-depen-
dent control.
CONTROL PANEL
bar
2
1
O
3
4
Summer/Winter switch
ON/OFF switch
Pressure gauge
MCBA display
Pre-cut for an optional
Control Unit controller
High quality
insulation
The HeatMaster TC is
insulated with 50 mm
of CPC/HFC/HCFC and
ozone depletion free poly-
urethane insulation.
Modulating premix gas burner
The HeatMaster TC benefits from hav-
ing the advanced air/gas modulating
pre-mix gas burner as standard.
• Very easy to install, adjust and
maintain
• Low NOx emissions
• Safe and quiet

12
TECHNICAL CHARACTERISTICS
DIMENSIONS AND CONNECTIONS
HeatMaster© TC TECHNICAL
G
H
F
bar
2
1
O
3
4
A
B
CD
E
O
N
M
L
K
J
I
DIMENSIONS A B C D E F G H I J K L M N O
mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm
HeatMaster 35 TC 1720 600 500 80 125 140 1700 670 110 100 200 960 - 170 230
HeatMaster 85 TC 2145 690 580 100 150 160 2095 725 125 105 270 1210 200 235 240
CONNECTIONS
Heating connection (F) DHW connection (M) Gas connection (M)
Ø Ø Ø
HeatMaster 35 TC 1” 1” 3/4”
HeatMaster 85 TC 1 1/2” 1 1/2” 3/4”
HeatMaster TC: unic boiler with
the efficiency 106% in hot water
production mode!
More than 3070 L of domestic hot
water (in first hour)
with condensation using about
1 m2 of space.
67 cm
60 cm 69 cm
72,5 cm

13
TECHNICAL DATA
TECHNICAL CHARACTERISTICS
HeatMaster 35 TC HeatMaster 85 TC
Natural gas Propane Natural gas Propane
Central heating
Max. Input 80/600C kW 34.9 30.6 85.0 (92.0) 85.0 (92.0)
Min. Input 80/600C kW 10.0 10.0 17.2 17.2
Max. Output 80/600C kW 34.1 29.9 82.5 82.5
Min. Output 80/600C kW 9.8 9.8 16.7 16.7
Efficiency 30% load (EN677) % 108.5 108.5 107.8 107.8
Efficiency domestic hot water mode (Dt=300C) % 105.9 105.9 104.0 104.0
Loudness (max output) db (A) <55 <55 <55 <55
Flue gases
CO emissions max./min. Input mg/kWh 70/6 105/17 59/4 89/45.0
NOx emissions max./min. Input mg/kWh 59/29 72/31 72.4/19 85/27
NOx classification (EN483) 5 5 5 5
Flue gas temperature - max. Input 80/600C0C 60 60 61.6 61.6
Flue gas temperature - max. Input 50/300C0C 32 32 35.1 35.1
Mass flow rate of combustion products kg/h 55 46.5 137 (148) 134 (145)
Flue gas pipe - Max. pressure drop Pa 130 130 150 150
Concentric flue gas channel maximum lenght m 20 20 20 20
Gas
Gas pressure mbar 20/25 30/37/50 20/25 30/37/50
G20 gas flow rate m3/h 3.7 - 8.99 (9.73) -
G25 gas flow rate m3/h 4.3 - 10.46 (11.32) -
G31 gas flow rate m3/h - 1.25 - 3,5 (3,8)
CO2 max. Input %CO29.4 10.5 9.3 10.9
CO2 min. Input %CO29.0 10.1 8.6 10
Hydraulic parameters
Max. operating temperature 0C 90 90 90 90
Total capacity L 189 189 315 315
Heating circuit capacity L 108.5 108.5 125 125
Maximum operating pressure central heating bar 3 3 3 3
Heat exchanger pressure drop (DT=200C) mbar 30 30 200 200
Electrical connection
Class IP 30 30 30 30
Supply voltage V/Hz 230/50 230/50 230/50 230/50
Maximum absorbed electrical power A 0.8 0.8 1.0 1.0
Weight empty kg 174 174 284 284
(...) = DHW mode only

14
TECHNICAL CHARACTERISTICS
DOMESTIC HOT WATER PERFORMANCES - Operating conditions: 700C
HeatMaster© TC TECHNICAL
DHW
T0Peak flow [liters/min.] Continuous flow Preheating time [min]
10 min 20 min 30 min 40 min 50 min 60 min l/h kW 10 - 700C
40 377 533 690 847 1004 1161 940 37,3 { 25 }
45 312 436 561 686 811 936 748 37,3
50 263 363 462 561 660 759 600 37,3
55 223 303 384 464 544 624 481 37,3
60 191 254 317 380 443 506 380 37,3
Operating conditions 700C - Cold water 100C
HM 35 TC
HM 85 TC
DHW
T0Peak flow [liters/min.] Continuous flow Preheating time [min]
10 min 20 min 30 min 40 min 50 min 60 min l/h kW 10 - 700C
40 606 983 1360 1737 2114 2491 2264 94,6 { 20 }
45 501 801 1102 1402 1702 2002 1801 94,6
50 422 663 903 1143 1383 1623 1445 94,6
55 358 551 744 937 1130 1323 1158 94,6
60 306 458 611 763 915 1067 914 94,6
2 x HM 85 TC
DHW
T0Peak flow [liters/min.] Continuous flow Preheating time [min]
10 min 20 min 30 min 40 min 50 min 60 min l/h kW 10 - 700C
40 1212 1966 2720 3474 4228 4982 4528 189,2 { 20 }
45 1002 1602 2204 2804 3404 4004 3602 189,2
50 844 1326 1806 2286 2766 3246 2890 189,2
55 716 1102 1488 1874 2260 2646 2316 189,2
60 612 916 1222 1526 1830 2134 1828 189,2
3 x HM 85 TC
DHW
T0Peak flow [liters/min.] Continuous flow Preheating time [min]
10 min 20 min 30 min 40 min 50 min 60 min l/h kW 10 - 700C
40 1818 2949 4080 5211 6342 7473 6792 283,8 { 20 }
45 1503 2403 3306 4206 5106 6006 5403 283,8
50 1266 1989 2709 3429 4149 4869 4335 283,8
55 1074 1653 2232 2811 3390 3969 3474 283,8
60 918 1374 1833 2289 2745 3201 2742 283,8

15
TECHNICAL CHARACTERISTICS
DIAGRAMS OF THE HIGH PEAK FLOWS
Thanks to the high temperature of storage and large heating surface, HeatMaster TC offers really high peak flows.
HM 35 TC
Operating
conditions 700C
HM 85 TC
Operating
conditions 700C
Temperature [0C]
Temperature [0C]
DHW [liters] DHW [liters]

16
TECHNICAL CHARACTERISTICS
DOMESTIC HOT WATER PERFORMANCES - Operating conditions: 800C
HeatMaster© TC TECHNICAL
DHW
T0Peak flow [liters/min.]] Continuous flow Preheating time [min]
10 min 20 min 30 min 40 min 50 min 60 min l/h kW 10 - 800C
40 437 615 794 972 1150 1328 1069 37,3 { 30 }
45 375 528 680 833 986 1139 917 37,3
50 322 450 579 707 835 963 770 37,3
55 277 383 489 595 701 807 637 37,3
60 241 328 416 504 592 680 527 37,3
HM 35 TC
HM 85 TC
DHW
T0Peak flow [liters/min.] Continuous flow Preheating time [min]
10 min 20 min 30 min 40 min 50 min 60 min l/h kW 10 - 800C
40 721 1173 1625 2077 2529 2981 2712 94,6 { 25 }
45 610 986 1363 1740 2117 2494 2260 94,6
50 517 827 1136 1445 1754 2063 1855 94,6
55 445 701 956 1212 1468 1724 1534 94,6
60 386 598 809 1021 1233 1445 1270 94,6
2 x HM 85 TC
DHW
T0Peak flow [liters/min.] Continuous flow Preheating time [min]
10 min 20 min 30 min 40 min 50 min 60 min l/h kW 10 - 800C
40 1442 2346 3250 4154 5058 5962 5424 189,2 { 25 }
45 1220 1972 2726 3480 4234 4988 4520 189,2
50 1034 1654 2272 2890 3508 4126 3710 189,2
55 890 1402 1912 2424 2936 3448 3068 189,2
60 772 1196 1618 2042 2466 2890 2540 189,2
3 x HM 85 TC
DHW
T0Peak flow [liters/min.]] Continuous flow Preheating time [min]
10 min 20 min 30 min 40 min 50 min 60 min l/h kW 10 - 800C
40 2163 3519 4875 6231 7587 8943 8136 283,8 { 25 }
45 1830 2958 4089 5220 6351 7482 6780 283,8
50 1551 2481 3408 4335 5262 6189 5565 283,8
55 1335 2103 2868 3636 4404 5172 4602 283,8
60 1158 1794 2427 3063 3699 4335 3810 283,8
Operating conditions 800C - Cold water 100C

17
TECHNICAL CHARACTERISTICS
DIAGRAMS OF THE HIGH PEAK FLOWS
Thanks to the high temperature of storage and large heating surface, HeatMaster TC offers really high peak flows.
HM 35 TC
Operating
conditions 800C
HM 85 TC
Operating
conditions 800C
Temperature [0C]
Temperature [0C]
DHW [liters] DHW [liters]

18
TECHNICAL CHARACTERISTICS
DOMESTIC HOT WATER PERFORMANCES - Operating conditions: 900C
HeatMaster© TC TECHNICAL
DHW
T0Peak flow [liters/min.] Continuous flow Preheating time [min]
10 min 20 min 30 min 40 min 50 min 60 min l/h kW 10 - 900C
40 472 652 809 984 1154 1322 1070 37,3 { 35 }
45 389 532 678 823 970 1116 917 37,3
50 333 453 577 701 830 958 802 37,3
60 243 335 431 530 629 731 642 37,3
70 178 246 324 407 493 581 533 37,2
80 125 136 181 233 327 397 416 33,9
HM 35 TC
HM 85 TC
DHW
T0Peak flow [liters/min.] Continuous flow Preheating time [min]
10 min 20 min 30 min 40 min 50 min 60 min l/h kW 10 - 900C
40 868 1267 1696 2156 2616 3076 2713 94,6 { 25 }
45 718 1039 1343 1757 2126 2513 2325 94,6
50 597 842 1148 1477 1814 2149 2034 94,6
60 413 572 807 1060 1324 1594 1617 94,0
70 305 381 536 726 922 1119 1219 85,0
80 229 263 335 446 572 702 776 63,2
2 x HM 85 TC
DHW
T0Peak flow [liters/min.] Continuous flow Preheating time [min]
10 min 20 min 30 min 40 min 50 min 60 min l/h kW 10 - 900C
40 1736 2534 3392 4312 5232 6152 5426 189,2 { 25 }
45 1436 2078 2686 3514 4252 5026 4650 189,2
50 1194 1684 2296 2954 3628 4298 4068 189,2
60 826 1144 1614 2120 2648 3188 3234 189,2
70 610 762 1072 1452 1844 2238 2438 170
80 458 526 670 892 1144 1404 1552 126,4
3 x HM 85 TC
DHW
T0Peak flow [liters/min.] Continuous flow Preheating time [min]
10 min 20 min 30 min 40 min 50 min 60 min l/h kW 10 - 900C
40 2604 3801 5088 6468 7848 9228 8139 283,8 { 25 }
45 2154 3117 4029 5271 6378 7539 6975 283,8
50 1791 2526 3444 4431 5442 6447 6102 283,8
60 1239 1716 2421 3180 3972 4782 4851 283,8
70 915 1143 1608 2178 2766 3357 3657 255
80 687 789 1005 1338 1716 2106 2328 189,6
Operating conditions 900C - Cold water 100C

19
TECHNICAL CHARACTERISTICS
DIAGRAMS OF THE HIGH PEAK FLOWS
Thanks to the high temperature of storage and large heating surface, HeatMaster TC offers really high peak flows.
HM 35 TC
Operating
conditions 900C
HM 85 TC
Operating
conditions 900C
Temperature [0C]
Temperature [0C]
DHW [liters] DHW [liters]

20
CONNECTIONS
DOMESTIC HOT WATER CONNECTIONS
HeatMaster© TC TECHNICAL
HEATING CONNECTIONS
LEGEND:
1. Cold water supply tap
2. Non-return valve
3. Pressure reducing valve
4. Safety group
5. Hot water expansion vessel
6. Thermostatic mixer
7. Drawoff tap
LEGEND:
1. Isolating valve, heating system
2. Primary safety valve with pressure gauge
2’.Internal primary safety valve calibrated to 3 bar
3. System filling valve
4. Expansion vessel
5. Drain cock
6. Condensation trap
7. Heating pump
3
4
2
5
6
7
1 2 3 4
ATTENTION:
HeatMaster TC must be filled with water at both
sides: hot water and heating and properly secured
with safety valves and expansion vessels.
Remember to fill domestic hot water tanks before
filling heating circuit.
,