Installation – Desa GWP6 User Manual

Page 10

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117001-01A

10

WARNING: For natural

gas, never connect heater to

private (non-utility) gas wells.

This gas is commonly known

as wellhead gas.

IMPORTANT:

For natural gas, check gas line

pressure before connecting heater to gas line. Gas

line pressure must be no greater than 10.5 inches of

water. If gas line pressure is higher, heater regula-

tor damage could occur.

CAUTION: For propane/LP

gas, never connect heater di-

rectly to the propane/LP supply.

This heater requires an external

regulator (not supplied). Install

the external regulator between the

heater and propane/LP supply.

For propane/LP gas, the installer must supply an

external regulator. The external regulator will

reduce incoming gas pressure. You must reduce

incoming gas pressure to between 11 and 14 inches

of water. If you do not reduce incoming gas pres-

sure, heater regulator damage could occur. Install

the external regulator with the vent pointing down

as shown in Figure 12. Pointing the vent down

protects it from freezing rain or sleet.

CAUTION: Use only new,

black iron or steel pipe. Inter-

nally-tinned copper tubing may

be used in certain areas. Check

your local codes. Use pipe of

large enough diameter to allow

proper gas volume to heater. If

pipe is too small, undue loss of

volume will occur.

INSTALLATION

Continued

Figure 12 - External Regulator With Vent

Pointing Down (Propane/LP only)

External
Regulator

Propane/LP
Supply Tank

Vent
Pointing
Down

Figure 11 - Installing Bottom Mounting

Screw

Installing Bottom Mounting Screw
1. Locate bottom mounting hole. This hole is

near bottom on back panel of heater (see

Figure 11).

2. Mark screw location on wall.
3. Remove heater from wall.
4. If installing bottom mounting screw into hol-

low or solid wall, install wall anchor. Follow

steps 1 through 5 under Attaching To Wall

Anchor Method, page 9. If installing bottom

mounting screw into wall stud, drill hole at

marked location using 9/64" drill bit.

5. Replace heater on wall.
6. Insert bottom anchor screw through back

panel into bottom anchor or drilled hole (see

Figure 11).

7. Tighten screw until heater is firmly secured to

wall. Do not over tighten.

Note:

Do not replace front panel at this time.

Replace front panel after making gas connec-

tions and checking for leaks (see pages 10

through 12).

CONNECTING TO GAS SUPPLY

WARNING: This appliance

requires a 3/8" NPT (National

Pipe Thread) inlet connection to

the pressure regulator.

WARNING: A qualified ser-

vice person must connect heater

to gas supply. Follow all local

codes.

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