Installation Instructions

CONNECTING THE WATER HEATER TO THE WATER SUPPLY

Hot Outlet

Shut-Off Valve

Pressure Relief

Cold Inlet

Shut-Off Valve

Valve

 

Water connections to the tankless water heater should follow all state and local plumbing codes.

If this is a standard installation, refer to the diagram on the following page under

RECOMMENDED PIPING FOR BASIC INSTALLATION. If freeze protection valves are being installed, refer to the diagram under FREEZE PROTECTION FOR EXTERNAL PIPING on page 15.

1.Plumb water supply to the tankless water heater on the 3/4″ MNPT connection at the bottom of the unit marked WATER INLET.

2.Plumb the home hot water supply to the 3/4″ MNPT connection marked WATER OUTLET

at the bottom of the unit.

NOTE: Make sure water lines to the water heater fit in the diagram shown on page 7. This is essential if a pipe cover accessory (model number AGTPCM) is to be installed.

SUPPLEMENTAL FREEZE PROTECTION

If the unit is installed in an environment that can freeze, follow state and local codes and apply heat trace to ALL water pipe and fittings located outside (attic, crawl space or building structure).

It is highly recommended in areas where freezing temperatures occur to install automatic drain valves that work in the event of a power loss. Refer to the diagram in the FREEZE PROTECTION FOR EXTERNAL PIPING section (page 15). These valves should be wired to a supply current.

In the event of a power loss, the system will drain automatically. Be sure to test this system after installation by turning off power to ensure the system drains properly.

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GE GN94ENSRSA, GP94ENSRSA, GN75ENSRSA Supplemental Freeze Protection, Connecting the Water Heater to the Water Supply

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