31
General
INSTALLATION INSTRUCTIONS
NOTICE:
The National Fuel Gas Code (NFGC) and CAN/CSA B149.1 mandate a manual gas
shut-off valve. See NFGC/B149.1 for complete instructions. Local codes or plumbing authority
requirements may vary from the instructions or diagrams provided and take precedence over
these instructions.
Typical Installation of Direct-Vent Water Heater (Venting Required)
Relief
Valve
Service
Valve
Service
Valve
To Hot Water
Faucet(s)
Drain Valve
Wall
Plate
Vent Termination
With Protective
Screen
Water
Filter
Cold Water Supply
Shut-Off Valve
Discharge Line
(To Suitable Drain)
Power
Supply
Cord
Manual Gas
Supply Line
Shut-Off Valve
1/4" Per Foot Downward Slope
(recommended)
Manual Gas
Shut-Off Valve
Union
Cap
Sediment Trap
Outside
Wall
90˚
Elbow
6"
(150 mm)
Air Gap
Condensate Trap
To Drain: Dispose of condensate
in accordance to local codes.
Union
Built In
Condensate Collector
Water Heater Installation (cont.)