Warning, Gas supply, Gas requirements – Whirlpool UG1H5040T3NOV User Manual

Page 6: Gas pressure

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6

Gas Supply

Gas Requirements

IMPORTANT: Read the data plate to be sure the water

heater is made for the type of gas you will be using in

your home. This information will be found on the data

plate located near the gas control valve/thermostat. If the

information does not agree with the type of gas available,

do not install or light. Call your dealer.
NOTE: An odorant is added by the gas supplier to the gas

used by this water heater. This odorant may fade over an

extended period of time. Do not depend upon this odorant

as an indication of leaking gas.

Gas Piping

The gas piping must be installed according to all local and

state codes or, in the absence of local and state codes, the

“National Fuel Gas Code”, ANSI Z223.1(NFPA 54)-latest

edition.
Table 1 on the following page is provided as a sizing

reference for commonly used gas pipe materials. Consult

the “National Fuel Gas Code” for the recommended gas

pipe size of other materials.
Refer to Figure 3
NOTE: When installing gas piping, apply approved pipe

joint compound.
1. Install a readily accessible manual shut-off valve in the

gas supply line as recommended by the local utility.

Know the location of this valve and how to turn off the

gas to this unit.

2. Install a drip leg (if not already incorporated as part of

the water heater) as shown. The drip leg must be no

less than three inches long for the accumulation of dirt,

foreign material, and water droplets.

3. Install a ground joint union between the gas control

valve/thermostat and the manual shut-off valve. This

is to allow easy removal of the gas control valve/

thermostat.

4. Turn the gas supply on and check for leaks. Test all

connections by brushing on an approved noncorrosive

leak-detection solution. Bubbles will show a leak.

Correct any leak found.

Figure 3

Gas Piping

Manual Gas

Shut-off Valve

Ground

Joint

Union

3” minimum

Check with

local utility

for minimum height

Drip leg

Gas Pressure

IMPORTANT: The gas supply pressure must not exceed
the maximum supply pressure as stated on the water
heater’s data plate. The minimum supply pressure is for
the purpose of input adjustment.

Gas Pressure Testing

IMPORTANT: This water heater and its gas connection
must be leak tested before placing the appliance in
operation.

If the code requires the gas lines to be tested at a
pressure exceeding 14” W.C., the water heater and its
manual shut-off valve must be disconnected from the
gas supply piping system and the line capped.

If the gas lines are to be tested at a pressure less than
14” W.C., the water heater must be isolated from the
gas supply piping system by closing its manual shut-off
valve.

U.L. recognized fuel gas and carbon monoxide (CO)
detectors are recommended in all applications and should
be installed using the manufacturer’s instructions and local
codes, rules, or regulations.
NOTE: Air may be present in the gas lines and could
prevent the pilot from lighting on initial start-up. The gas
lines should be purged of air by a qualified person after
installation of the gas piping system.

Explosion Hazard

Use a new CSA approved gas supply line.

Install a shut-off valve.

Do not connect a natural gas water heater to
an L.P. gas supply.

Do not connect an L.P. gas water heater to a
natural gas supply.

Failure to follow these instructions can
result in death, explosion, or
carbon monoxide poisoning.

WARNING

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