ANDREWS DIRECT FIRED WALL HUNG WATER HEATERS

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Features & Benefits
  • One unit can supply up to 3 showers at the same time
  • Up to six units can be installed in cascade to meet system requirements
  • Only available in natural gas
  • Vertical or horizontal concentric flue options for easy siting and installation
  • Auto ignition as standard that modulates dependant on demand for simple management
  • Remote controller that can be purchased at time of installation with unique built in maintenance monitor
  • Meets forthcoming Energy-related Products directive (ErP)
  • The fan shuts down when not in use to conserve energy
  • Can be linked to additional storage vessel such as the ST range to meet peak hot water demand
Technical Specifications
Model (Natural Gas) WH42 WH56 WHX56 WHC56
Model** (Propane) LWH42 LWH56 LWHX56 N/A
Heat input net kW 49.0 62.3 62.3 54.0
Heat output net kW 42.0 55.8 55.8 55.8
Gas rate natural m3/hr 5.1 6.5 6.5 5.1
Gas rate propane m3/hr 1.9 2.5 2.5 N/A
NOx emissions ppm 52 52 N/A 60
NOx emissions mg/kWh 92 92 N/A 105.84
NOx emissions (propane) ppm N/A N/A 72 N/A
NOx emissions (propane) mg/kWh N/A N/A 128 N/A
Noise level dB(A) 49 49 49 49
Water connection ¾ BSP ¾ BSP ¾ BSP ¾ BSP
Gas connection (gas cock supplied) ¾ BSP ¾ BSP ¾ BSP ¾ BSP
Efficiency % 86 90 90 103
Max water pressure bar 10.0 10.0 10.0 10.0
Min water pressure*** bar 1.0 1.0 1.0 1.0
Electric supply V 230 230 230 230
Frequency Hz 50 50 50 50
Fuse 5A 5A 5A 5A
Max flow rate @ 25ºC rise ltrs/min 24 32 32 32
Min flow rate ltrs/min 3.5 3.5 3.5 3.5
Flue type Concentric 100mm Concentric 100mm External no flue required Concentric 100mm

** L prefix propane models must be specified when ordering

*** Note: although the heaters operate at low water pressure, maximum performance is not attained unless incoming pressure is 2 bar or more. On pumped circulation systems a minimum flow of 8 litres/min through each heater is required for optimum performance.

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