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Capacity, Gas and Electrical Characteristics
Model Approx. Capacity Input Gas
Type
Gas Supply Pressure Manifold Pressure Electrical Characteristics
U.S. Gals. Litres BTU/hr Max.
in. WC (kPa)
Min.
in. WC (kPa)
in. WC (kPa) Volts/Hz Amperes
GH-90N 25 94.6 100,000 Nat. 14.0 (3.49) 5.0 (1.25) 4.2 (1.05) 120/60 2.5
Minimum gas supply pressure must be maintained under both load and no load (dynamic and static) conditions.
Manifold Pressure is preset on the gas valve by the manufacturer; DO NOT ATTEMPT TO ADJUST!
Thermal effi ciency is 90%.
If the hardness of your water supply is more than of 12 grains per gallon (200 mg/L), if your water supply is acidic or otherwise impure,
the water supply must be treated with approved methods in order to ensure full warranty coverage. Problems resulting from the forma-
tion of scale are not covered by the warranty.
Minimum Clearance To Combustibles Service Clearance
Test Pressure
P.S.I.
Top Front Vent Back Sides Floor Front Sides
00000021” (53.3 cm) 12” (30.5 cm) 300
This appliance must be installed in accordance with local codes or, in the absence of local codes, the “National Fuel Gas Code” ANSI
Z223.1/NFPA 54 or the “Natural Gas and Propane Installation Code” CAN/CSAB149.1.
Not for installation in a Manufactured Home (Mobile Home).
This water heater is suitable for water (potable) heating only.
This water heater is suitable for installation in a closet or alcove.
ROUGH IN DIMENSIONS
FIGURE 2
INSTALLATION CONSIDERATIONS
Left Side View
Top View