THREE eF COMMERCIAL GAS MODELS

THREE eF COMMERCIAL GAS MODELS THIS DRAWING SHOWS A SUGGESTED PIPING CONFIGURATION AND OTHER DEVICES; CHECK WITH LOCAL CODES AND ORDINANCES FOR ADDITIONAL REQUIREMENTS.

UNION (3 PLS.)

*EXPANSION TANK RECOMMENDED TO MINIMIZE ANY PRESSURE BUILD UP IF THE WATER SUPPLY PIPING HAS A BACK-FLOW PREVENTER, CHECK VALVE OR WATER METER WITH A CHECK VALVE. **AIR INTAKE PIPE OPTIONAL.

SHUT OFF VALVE (3 PLS.)

**INTAKE VENT PIPE (3 PLS.)

HOT WATER

EXHAUST VENT PIPE (3 PLS.)

DRAIN OUTLET (3 PLS.)

TEMPERATURE AND PRESSURE RELIEF VALVE (3 PLS.)

SHUT OFF VALVE (3 PLS.)

DISCHARGE TUBE (3 PLS.) WATER SUPPLY

UNION (3 PLS.)

BACK-FLOW PREVENTER SHUT OFF VALVE EXPANSION TANK* UNION DRAIN

CONDENSATE TRAP (3 PLS.)