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HeatMaster® 35TC–85TC...

Condensing Range

Total condensing storage combination boiler -
complies with Part L.

With the high levels of building insulation now in place in most properties, the requirements for heating output are reducing – and this trend is set to continue with some experts predicting a drop in the boiler load due to heating from around 75% to as low as 45%. At
the same time, hot water usage is increasing year-by year as demand rises for luxury bathing facilities such as high performance showers and spa baths. If hot
water demand has risen to 55% of the boiler load, the natural next step is to gain as much efficiency in hot water mode as possible.

MCBA electronic control fitted as standard. Managing boiler and burner functions, this helps reduce the stop/start cycle significantly, ultimately saving fuel and component wear and tear.

Additional controls available, please discuss your requirements with our technical department.

Dimensions

Technical Data	HM35-85	HM35TC			HM85TC
		NAT GAS	LPG		NAT GAS	LPG
Input max/min	kW	34.9/10.0	30.6/10.0		85.0/17.2	85.0/17.2
Output max/min	kW	34.1/9.8	29.9/9.8		82.5/16.5	82.5/16.5
Efficiency hot water mode	%	105.9	105.9		105.0	105.0
Efficiency heating mode	%	108.5	108.5		108	108
SAP seasonal efficiency	%	90.9	92.6		-	-
Total capacity	L	189	189		315	315
Primary capacity	L	108.5	108.5		125	125
Gas connection (male)	Æ	3/4"	3/4"		1"	1"
Primary flow & return connection	Æ	1"	1"		1 1/2"	1 1/2"
Secondary hot water Connection	Æ	1"	1"		1 1/4"	1 1/4"
Flue connection	Æ mm	80/125	80/125		100/150	100/150
Max length concentric flue	mtr	20	20		20	20
Nox class (EN483)		class 5	class 5		class 5	class 5
Weight empty	kg	174	174		284	284
Natural gas flow rate - 20mbar	m³/h	3.7			8.99
Pressure drop	mbar	30	30		200	200
Maximum operating temperature	°C	90	90		90	90

Performance Data		HM 35TC	HM 85TC

Litres in first 10 minutes	40°C	419	850
Litres in first 10 minutes	45°C	381	722
Litres in first 10 minutes	60°C	224	459
Litres in first hour	40°C	1312	3177
Litres in first hour	45°C	1080	2717
Litres in first hour	60°C	692	1778
Continuous flow 40°C	Ltrs/hr	1057	2793
Continuous flow 45°C	Ltrs/hr	898	2394
Continuous flow 60°C	Ltrs/hr	578	1583

Heating
The heating return enters the lower
circuit 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

Hot Water
With the upper circuit maintained at a
high temperature, the HeatMaster TC
is always ready to supply hot water on
demand. The cold water enters
through the dual coil at the base of
the heat exchanger and is pre-heated
before entering the hot water tank.
The low temperature of the bottom
circuit results in continuous
condensation of the flue gases in hot
water mode.

Heating and Hot Water
Once up to temperature, the
HeatMaster TC is capable of producing
heating and hot water simultaneously.

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