Rheem RTG-3 Series Use And Care Manual page 18

INSTALLATION INSTRUCTIONS
Water Heater Installation
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)
To Hot Water
Faucet(s)
Drain
Valve
18
1/4" Per Foot Downward
Slope (recommended)
90° Elbow
Power
Supply
Cord
Water
Filter
Union
Relief
Valve
Service
Valve
6"(150 mm)
Air Gap
Discharge Line (To Suitable Drain)
Built In Condensate Collector
Condensate
Trap
To Drain: Dispose of condensate in
accordance to local codes.
Manual Gas
Manual Gas Supply
Shut-Off Valve
Line Shut-Off Valve
Union
Sediment Trap
Cap
Cold Water Supply
Shut-Off Valve
Wall Plate
Vent Termination
With Protective
Screen
Outside Wall