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HeatMaster 70 TC Evo

Combined gas fired condensing boiler and water heater with stainless steel heat exchanger.

5-Year Warranty
Tank-in-Tank technology
Nat Gas and LPG

label_energy_GAS
Boilers
DHW Production
Standard
Concentric
Floor installation

# GTIN : 5400891528433

# P/N : XB550004

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Heating and hot water from one unit saves space, reduces energy use and speeds up installation
Operates in most efficient mode (condensing) for both heating and hot water
Low maintenance with no anode protection required
Reduces legionella risk due to temperature stored at > 60°C
Corrosion-resistant stainless steel heat exchanger and tank reduces maintenance and increases system lifespan
Suited to high demand and critical hot water premises such as hotels and hospitals
Easy to use standardised controls using ACVMax control system
Combine with Prestige® heat only boilers or Smart cylinder for highly efficient heating and hot water performance all from one manufacturer
Suitable for vented or unvented systems (optional unvented kit required)
Supplied with LPG kit for simple on-site conversion
Improved access for service and maintenance
Supplied with factory fitted T&P relief valve

Schematic — Concentric flue gas/air inlet box

Flue gas exhaust tube

Combustion chamber

Stainless steel heat exchanger

Stainless steel “Tank-in-Tank” hot water production tank (primary + DHW)

Primary circuit separation disc

Indirect water pre-heater

Insulation

Condensate recovery dish + NTC5 sensor (flue gas)

High efficiency circulator pump

NTC2 sensor (CH return)

Electrical panel (with spare fuses at the back)

ACVMax Touch Control panel

On-Off switch

DHW tank dry well (Dip tube with temperature sensor)

Automatic air vent

Gas pressure switch

NTC1 sensor (CH supply)

Gas valve

DHW safety valve / (T & P relief valve - UK only)

Modulating air/gas premix burner with fan

Air inlet

Constructive characteristics
		HeatMaster 70 TC Evo	HeatMaster 85 TC Evo	HeatMaster 120 TC Evo
Capacity (total)	L	315	315	315	L
Capacity (primary)	L	125	125	125	L
Capacity (domestic hot water)	L	190	190	190	L
Chimney: Max pressure drop in flue pipe	Pa	150	150	170	Pa
Chimney: max length of concentric flue pipe	m	22	22	21	m
Chimney connection	Ømm	100/150	100/150	100/150	Ømm
Connection - heating	Ø"	1 ½ F	1 ½ F	1 ½ F	Ø"
Connection - DHW	Ø"	1 M	1 M	1 M	Ø"
Connection gas	Ø"	3/4 M	3/4 M	3/4 M	Ø"
Connection - safety valve	Ø"	1/2 M	1/2 M	1/2 M	Ø"
Max operating temperature	°C	87	87	87	°C
Water pressure drop boiler at Δt = 20°C	mbar	9	14	27	mbar
Max service pressure heating (primary)	bar	3	3	3	bar
Max service pressure (DHW)	bar	8,6	8,6	8,6	bar
Pressure drop (primary - ΔT10K)	mbar	9,3	-	-	mbar
Height when tilted	mm	2270	2270	2270	mm
Weight (empty)	kg	298	298	299	kg
Heating characteristics
		HeatMaster 70 TC Evo	HeatMaster 85 TC Evo	HeatMaster 120 TC Evo
Pre-heating time from 10 to 80°C (Heat source: boiler)	min	27	24	23	min
Reheat time from 40 to 90°C	min	37	36	30	min
Reheat time from 40 to 80°C	min	18	16	15	min
Heating time from 10 to 90°C	min	47	43	38	min
Combustion
		HeatMaster 70 TC Evo	HeatMaster 85 TC Evo	HeatMaster 120 TC Evo
Input max (heating) HCV	kW	77,6	94,4	127,7	kW
Input max (heating) LCV	kW	69,9	85,0	115,0	kW
Combustion efficiency	%	98,1	98	97,5	%
Efficiency at 30% load (EN15502-1)	%	109,0	108	108	%
Efficiency at 100% load (50/30°C)	%	105,8	105,8	105,8	%
Efficiency (max output) 80/60°C	%	97,3	97	97	%
Efficiency (min output) 80/60°C	%	97,3	97,5	97,1	%
Efficiency DHW mode ΔT 30K	%	103,9	103,9	102,2	%
CO emissions max output	ppm	34	51	50	ppm
CO emissions min output	ppm	7	6	4	ppm
Mass rate of combustion products (gas)	kg/h	114	111	183	kg/h
NOx weighted (GCV) (EN15502)	mg/kWh	33,1	29,3	39,8	mg/kWh
NOx class (EN15502)		6	6	6
Output power max (80/60°C)	kW	68,0	82,9	111,7	kW
Output power min (80/60°C)	kW	20,9	20,5	22,9	kW
Output power max (50/30°C)	kW	74,0	89,9	121,7	kW
Gas flow rate (min output)	m³/h	2,2	2,1	2,45	m³/h
Domestic hot water performance
		HeatMaster 70 TC Evo	HeatMaster 85 TC Evo	HeatMaster 120 TC Evo
Peak flow at 40°C	L/10’	716	783	900	L/10’
Peak flow 1st hour at 40°C	L/60’	2455	2895	3620	L/60’
Continuous flow at 40°C	L/h	2087	2534	3402	L/h
Peak flow at 45°C	L/10’	592	646	676	L/10’
Peak flow 1st hour at 45°C	L/60’	2083	2456	3098	L/60’
Continuous flow at 45°C	L/h	1789	2172	2928	L/h
Peak flow at 60°C	L/10’	348	371	440	L/10’
Peak flow 1st hour at 60°C	L/60’	1391	1638	1847	L/60’
Continuous flow at 60°C	L/h	1252	1520	1754	L/h
Electrical Characteristics
		HeatMaster 70 TC Evo	HeatMaster 85 TC Evo	HeatMaster 120 TC Evo
Voltage	V	230	230	230	V
Frequency	Hz	50	50	50	Hz
Protection IP		20	20	20
Electrical consumption	W	210	266	327	W
Electrical power requirements	A	1,4	1,7	2	A
Eco Design Fields
		HeatMaster 70 TC Evo	HeatMaster 85 TC Evo	HeatMaster 120 TC Evo
Space heating energy efficiency class		A	A	A
Seasonal space heating efficiency (35°C)	%	93	92	92	%
Declared load profile		XXL	XXL	XXL
Water heating energy efficiency class		A	A	A
Water heating energy efficiency [ηwh] (EU 814/2013 Art 2 (15) Ann.IV-3)	%	85,0	85	85	%
Sound power level indoors LWA	dB	60	61	62	dB
Energy Label EU			-	-
Product Fiche

Technical brochure
ACVMax Touch - Installer's handboek for EVO appliances (2022 ->)	8.83MB – en
Evo Range Gas Conversion Procedure	2.28MB – fr en pl it de es ru
HeatMaster 25-35-45-70-85-120 TC Evo : Installation, operation and maintenance instructions	12.54MB – en
HeatMaster 70 TC Evo Data Sheet	292.10kB – en
Technico-commercial manual - HeatMaster TC EVO - WaterMaster EVO (X)	4.91MB
Ecodesign
Energy Label EU
Product Fiche
BIM Files
BIM Files