Installing the water heater:

Typical Installation of Water Heater (Venting Required for Indoor Models Only)

1/4" Per Foot Downward Pitch

90û Elbow

Vent Adapter

To Hot Water

Faucet(s)

 

 

 

Manual

 

Manual

 

Gas Supply Line

 

Gas Supply Line

To Hot Water

Shut-off

 

Shut-off

Valve

Power

Faucet(s)

Supply

Valve

 

 

 

Cord

 

 

 

 

 

 

 

Water Filter

 

 

 

 

 

 

 

Drain Valve

 

 

Manual Gas

 

 

 

 

 

 

 

 

 

 

Manual Gas

 

 

 

Appliance

Water Filter

 

 

Appliance

 

 

 

Shut-off

 

 

 

Shut-off

 

 

Check

(supplied)

Drain Valve

 

Check

(supplied)

On/Off

 

Valve

Union

 

 

 

 

 

 

Valve

 

 

 

 

 

 

Union

Switch

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Union

Relief

 

 

Union

Relief

 

 

Valve

 

 

 

 

 

 

 

 

Valve

 

 

 

 

Sediment

 

 

 

 

 

 

 

 

 

Sediment

 

 

 

Trap

 

 

 

 

Drain Valve

 

 

Drain Valve

 

 

Trap

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cap

 

 

 

Cap

 

 

 

 

 

 

 

 

 

 

Discharge

 

 

 

Discharge

 

 

 

Line

 

 

 

 

 

 

 

 

 

 

Line

 

Cold Water

(To Suitable Drain)

 

Cold Water

 

(To Suitable Drain)

 

Supply

 

 

 

 

 

 

 

6" (15 cm) Air Gap

Supply

 

6" (15 cm) Air Gap

Shut-off

 

 

 

 

 

Shut-off

 

 

 

Valve

Drain

 

 

Valve

Drain

 

 

 

 

 

 

 

 

Hose

 

 

 

 

 

 

 

 

 

Hose

 

 

 

 

 

 

 

 

 

(To Suitable Drain)

 

 

 

(To Suitable Drain)

 

 

 

 

 

 

Indoor Models

Outdoor Models

Vacuum Relief Valve

(Not Supplied)

If required, install per local codes

and valve manufacturer’s

instructions.

PRIORITY

F

POWER

ON/OFF

Remote

Control

Install indoors only.

Alternate Water Piping Arrangement with Optional Valve Kit

Hot Water Service

Valve

Cold Water

Service Valve

Pressure Relief

Valve

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Drain

 

Water

 

 

 

Water Inlet

 

 

 

Outlet

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NOTICE: The National Fuel Gas Code (NFGC) and B149 mandates a manual gas shut-off valve: See NFGC/B149 for complete instructions. Local codes or plumbing authority requirements may vary from the instructions or diagrams provided and take precedent over these instructions.

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Rheem RMTG2-53(PVN)(PVP)(XN)(XP), PTG53-(PVN)(PVP)(XN)(XP), RUTG2-53(PVN)(PVP)(XN)(XP) warranty Indoor Models, Outdoor Models

RMTG2-53(PVN)(PVP)(XN)(XP), RTG2-53(PVN)(PVP)(XN)(XP), RUTG2-53(PVN)(PVP)(XN)(XP), PTG53-(PVN)(PVP)(XN)(XP) specifications

Rheem PTG53-(PVN)(PVP)(XN)(XP), RUTG2-53(PVN)(PVP)(XN)(XP), RTG2-53(PVN)(PVP)(XN)(XP), and RMTG2-53(PVN)(PVP)(XN)(XP) are an impressive lineup of tankless water heaters that exemplify efficiency, technology, and convenience. These models represent Rheem's commitment to innovation in water heating solutions, appealing to both residential and commercial users.

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