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Home Wall-hung Combination Boiler Superior Natural Gas Wall Mounted Combi Tankless Water Heater Boiler HWB-A17

Superior Natural Gas Wall Mounted Combi Tankless Water Heater Boiler HWB-A17

HWB-A17 gas space heating wall mount combination boiler features simple operation with user friendly LED display and endurability.

The unit is availabe in bithermic exchanger type and double exchangers type with 4 capacity sizes, 18kW, 20kW, 24kW and 28kW.

  • Item NO.:

    HWB-A17
  • Payment:

    T/T, LC at sight
  • Product Origin:

    China
  • Color:

    White
  • Shipping Port:

    Zhongshan, Guangzhou
  • Product weight:

    32.800~39.5kg
  • Product Detail

KEY FACTS AND BENEFITS

    • Sealed heating system, neatly separated from domestic hot water circulation, prevent heating system from scaling and corrosion.
    • Hot water instantly heated from cold mains
    • User-friendly LED and icon-based displays for ease of use
    • 9 level of protections ensure a reliable and safe boiler.
    • Sealed combustion and forced draught, no impact on air quality in the room, safe for human. 
    • Hot water temperature can be fine tuned and automatically stabilized. Highly sensitive sensor enables immediate and precise feedback of real-time water temperature. 
    • Special insulation ensures ultra-quiet operation. 
    • High efficent combustion chamber, senior insulation panel, along with anti-corrosion copper heat exchanger, excel in insulation and heat conductivity,collectively improve efficiency. This not only save fuel but help reducing surface temperature of adjacent components which in result prolong boiler longevity.
    • Convenient access to all components for quick installation and easy maintenance.
    • Blackout memory capable. Once power restored, the unit gets back to the state before power failure to ensure boiler proper operation. 


TECHNICAL DATA

Model HWB-A17-18P
HWB-A17-18D
HWB-A17-20P
HWB-A17-20D
HWB-A17-24P
HWB-A17-24D
HWB-A17-28P
HWB-A17-28D
Fuel Type Natural gas /LPG /Town gas
Rated gas pressure(Pa) 2000(Natural gas) /2800(LPG) /1000(Town gas)
Rated heat load(kW) 18 20 24 28
Heat efficiencty at rated heat load ≧90% ≧90% ≧90% ≧90%
Power supply AC220-50Hz AC220-50Hz AC220-50Hz AC220-50Hz
Rated electric power (W) 110 110 110 120
Water proof protection IPX4 IPX4 IPX4 IPX4
Central Heating
Rated output capacity (kW) 16.2 18 21.6 25.2
Water temperature range (℃) Radiator: 30-80; Underfloor heating: 30-60
Heating area (sq.M) 50-120 70-140 80-180 120-220
Water pump lift(m) 5 5 5 6
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 6
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) 9 10 12 14
Flow rate △T=30℃(kg/min) 7.5 8.3 10 11.7
DHW temperature range(℃) 30-60
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) 32.8 32.8 33 35
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) 740*410*310 740*410*310 740*410*310 740*410*310


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