Installation Considerations; Rough In Dimensions - A.O. Smith Power Vent Gas Series Installation And Operating Manual

INSTALLATION CONSIDERATIONS

ROUGH IN DIMENSIONS

Top View
Left Side View
FIGURE 2
Capacity, Gas and Electrical Characteristics
Model Approx. Capacity Input Gas Gas Supply Pressure Manifold Pressure Electrical Characteristics
Type
U.S. Gals. Litres BTU/hr Max. Min. in. WC (kPa) Volts/Hz Amperes
in. WC (kPa) in. WC (kPa)
HYB-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
0 0 0 0 0 0 21" (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.
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