Appliance details
2Appliance details
2.1GWH 425 PN specifications (Technical data)
Approved in US/Canada
Capacity
GWH 425 PN: 4.3 GPM
Maximum output
GWH 425 PN: 91 525 Btu/hr
Maximum input
GWH 425 PN: 117 000 Btu/hr
Efficiency in %
Recovery efficiency 78%
Min. Output
GWH 425 PN: 23 906 Btu/hr
Gas Requirement
Gas connection (inches) - ¾” NPT
Inlet gas pressure under maximum operation* Propane: 10.5” - 14” water column Natural Gas: 5.7” - 14” water column.
*To measure Gas Pressure, see Measuring Gas Pressure, chapter 3.8.
Venting Natural Draft
Vent diameter (inches) - 5”
Minimum height (feet) - 6’ with no elbows Vertical termination
Sidewall termination only with AQ4 power vent kit.
Water
Hot water connection (inches) - ½” NPT Cold water connection (inches) - ½” NPT
Water valve material: Polymer (PPS) (Polypropylene Sulfid)
Minimum water flow: 0.5 gallon/minute (1.9 l/m)
Minimum recommended water pressure: 30 PSI (2.07 bar)
Connections:
– Bottom of heater
Dimensions
GWH 425 PN:
Depth (in): 8.66” (220 mm)
Width (in): 18.11” (460 mm)
Height (in): 25.79” (655 mm)
Weight: 35 pounds (16 kg).
Gas types
Natural Gas.
LP Gas
Safety devices
Flame failure device (ionization flame rod sensor) Pressure relief valve (supplied with heater)
Over heat prevention (temperature limiter).
Water resistant
IP X4.
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