Installation Considerations; Rough In Dimensions - A.O. Smith POWER VENT GAS Installation And Operating Manual

ROUGH IN DIMENSIONS

Capacity, Gas and Electrical Characteristics
Model Approx. Capacity
U.S. Gals. Litres
HYB-90N 25 94.6
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
Top Front Vent
0 0 0
This appliance must be installed in accordance with local codes or, in the absence of local codes, CAN/CSA-B149.1, the Natural Gas and
Propane Installation Code and CSA C22.1, the Canadian Electrical Code.
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.
8

INSTALLATION CONSIDERATIONS

Left Side View
Input Gas Gas Supply Pressure
Type
BTU/hr Max.
in. WC (kPa)
100,000 Nat. 14.0 (3.49)
Back Sides
0 0
FIGURE 2
Manifold Pressure
Min. in. WC (kPa)
in. WC (kPa)
5.0 (1.25) 4.2 (1.05)
Service Clearance
Floor Front
0 533mm (21 in.) 300mm (12 in.)
www.hotwater.com
Top View
Electrical Characteristics
Volts/Hz Amperes
120/60 2.5
Test Pressure
P.S.I.
Sides
300
316888-001 Rev. 00 dRaFt Jun 28 245