Wall Mounted Space Heating Gas Boiler and Water Heater

Durable Natural Gas Liquid Propane Gas Dual Purpose Combi Boilers for CH &DHW HWB-A15

A15 Combi Boiler is renowned for high reliability by utilizing tried and time-tested components. It comes with 4 capacity sizes 24kW, 28Kw，32kW, 40kW, available with two versions, bithermal exchanger version and double heat exchangers version.

Item NO.:
HWB-A15
Payment:
T/T, LC at sight
Product Origin:
China
Color:
White
Shipping Port:
Zhongshan, Guangzhou
Order(MOQ):
1

Product Detail

FEATURES AND BENEFITS

The unit features compact and sleek design with reliable componets for easy operation and low maintenance.
Simple boiler control knobs with clear temperature display.
Designed with stable outlet temperature in mind, stepless gas proportional valve paired with water flow are used to stabilize effectively temperature fluctuation due to water pressure changes.
Superior burner paired with excellent air distribution ensure fully mixture of gas and air for combustion, good to environment.
Programmed controlled system renders benefits of energy-saving, stable outlet temperature, safe operation and self-diagonsis.
Sealed heating system, isolated from DHW circulation, effectively prevents corrosion and scale build-up.
Multiple protections for peace of mind including two levels of frost prevetion, false flame supervision, ultimate temperature protection etc.
Quiet operation makes warmth delivered more enjoyable.

TECHNCIAL DATA

Model	HWB-A15-24P HWB-A15-24D	HWB-A15-28P HWB-A15-28D	HWB-A15-32P HWB-A15-32D	HWB-A15-40P HWB-A15-40D
Fuel Type	Natural gas /LPG /Town gas
Rated gas pressure(Pa)	2000(Natural gas) /2800(LPG) /1000(Town gas)
Rated heat load(kW)	24	28	32	40
Heat efficiencty at rated heat load	≧90%	≧90%	≧90%	≧90%
Power supply	AC220-50Hz	AC220-50Hz	AC220-50Hz	AC220-50Hz
Rated electric power (W)	110	120	120	150
Water proof protection	IPX4	IPX4	IPX4	IPX4
Central Heating
Rated output capacity (kW)	21.6	25.2	28.8	36
Water temperature range (℃)	Radiator: 30-80; Underfloor heating: 30-60
Heating area (sq.M）	80-180	120-220	160-260	250-380
Water pump lift（m)	5	6	6	7
Water pressure for heating system (MPa)	0.1-0.3	0.1-0.3	0.1-0.3	0.1-0.3
Expansion tank volume (L)	6	6	6	8
Expansion tank preload （MPa）	0.1	0.1	0.1	0.1
Heating system circuit	Sealed and forced
Domestic hot water
Flow rate △T=25℃(kg/min)	12	14	16	20
Flow rate △T=30℃(kg/min)	10	11.7	13.7	16.7
DHW temperature range(℃)
Applicable water pressure(MPa)	0.03-0.8	0.03-0.8	0.03-0.8	0.03-0.8
Min.Startup flow rate(L/min)	2.5	2.5	2.5	2.5
Min.turnoff flow rate(L/min)	2	2	2	2
Connector	Heating/gas inlet: G3/4; DHW connector: G1/2
Flue spec (mm)	Coxial double pipes Φ60-Φ100
Flue pipe length (m)	1	1	1	1
Net weight (kg)	33	35	35	39.5
Normal working noise (dB)	<45	<45	<45	<45
Exhaust type	Balanced forced draught
Ignition	Pulse automatic ignition
Temperature control method	Gas proportional modulating
Dimension (mm)	740410310	740410310	740410310	740460321

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Subject : Durable Natural Gas Liquid Propane Gas Dual Purpose Combi Boilers for CH &DHW HWB-A15

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