Typical installation, Relief valve – GE Series User Manual

Page 7

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Typical Installation

Recommended

heat trap

6

minimum

Hot water outlet

to fixtures

6

air gap

Suitable open drain

6

Union

Temperature &

pressure relief

valve

Cold water supply

To cold water

supply

Shut-off valve

Relief
valve
discharge
line to
suitable
open
drain

Unions

*The drain valve is located below and to the right of jacket access panel and is

not visible in this view.

Anode

Jacket
access
panel

Water
Heater
Jacket

Water
Heater
Jacket

Power supply
cord 2

1

/

2

gal.

models only

Temperature &
pressure relief
valve

Opening
for 1/2

or 3/4

electrical
fitting

(use only copper
conductors)

Auxiliary catch pan

Relief
valve
discharge
line

Shut-off valve

Drain valve*

Jacket access
panel

Hot water
outlet
(to fixtures)

Auxiliary
catch pan

Auxiliary catch
pan drain line

Auxiliary catch pan
drain line

Suitable open drain

7

WARNING: The pressure

rating of the relief valve
must not exceed 150 PSI,
the maximum working
pressure of the water
heater as marked on
the rating plate.

Relief Valve

The Btuh rating of the relief valve must
not be less than the input rating of the
water heater as indicated on the rating
label located on the front of the heater
(1 watt=3.412 Btuh).

Connect the outlet of the relief valve to a
suitable open drain so that the discharge
water cannot contact live electrical parts
or persons and to eliminate potential
water damage.

Piping used should be of a type approved
for hot water distribution. The discharge
line must be no smaller than the outlet
of the valve and must pitch downward
from the valve to allow complete drainage
(by gravity) of the relief valve and discharge
line. The end of the discharge line should
not be threaded or concealed and should
be protected from freezing. No valve of
any type, restriction or reducer coupling
should be installed in the discharge line.

A new combination temperature and pressure relief valve, complying with the Standard for Relief Valves
and Automatic Gas Shut-Off Devices for Hot Water Supply Systems, ANSI Z21.22, is supplied and must
remain installed in the opening provided and marked for the purpose on the water heater. No valve of any
type should be installed between the relief valve and the tank. Local codes shall govern the installation of
relief valves.

Safety Instructions

Installation Instructions

Operating Instructions

Care and Cleaning

T

roubleshooting Tips

Customer Service

Drain valve

(not supplied)

Vacuum Relief Valve

(Not Supplied)

If required, install per local codes

and valve manufacturer’s

instructions.

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