Connecting To Gas Supply - Desa Glo-Warm FB-10BA Owner's Operation And Installation Manual

INSTALLATION
Continued
4. If installing bottom mounting screw into
hollow or solid wall, install wall anchor.
Follow steps 1 through 4 under Attach-
ing To Wall Anchor Method, page 8. If
installing bottom mounting screw into
wall stud, drill holes at marked loca-
tions using 9/64" drill bit.
5. Replace heater onto mounting bracket.
6. Place spacer between bottom mount-
ing hole and wall anchor or drilled hole.
7. Hold spacer in place with one hand.
With other hand, insert mounting screw
through bottom mounting hole and
spacer. Place tip of screw in opening
of wall anchor or drilled hole.
8. 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 connections
and checking for leaks. (see page 10).
Figure 12 - Installing Bottom Mounting
Screw
CONNECTING TO GAS
SUPPLY
WARNING: This appliance re-
quires a 3/8" NPT (National Pipe
Thread) inlet connection to the
pressure regulator.
WARNING: A qualified service
person must connect heater to
gas supply. Follow all local codes.
CAUTION: Never connect heater
directly to the propane/LP supply.
This heater requires an external
regulator (not supplied). Install the
external regulator between the
heater and propane/LP supply.
105565
The installer must supply an external regulator.
The external regulator will reduce incoming
gas pressure. You must reduce incoming gas
pressure between 11 and 14 inches of water. If
you do not reduce incoming gas pressure, heater
regulator damage could occur. Install external
regulator with the vent pointing down as shown
in Figure 13. Pointing the vent down protects it
from freezing rain or sleet.
Propane/LP
Supply
Tank
Figure 13 - External Regulator With Vent
Pointing Down
3/8" NPT
Pipe Nipple
Ground Joint Union
Equipment
Shutoff
Valve *
From
External
Regulator
(11" W.C. to
14" W.C.
3" Min.
Pressure)
Figure 14 - Gas Connection
* An CSA/AGA design-certified equipment shutoff valve with 1/8" NPT tap is an
acceptable alternative to test gauge connection. Purchase the optional CSA/AGA design-
certified equipment shutoff valve from your dealer. See Accessory, page 18.
9
OWNER'S MANUAL
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 3/8"
diameter or greater to allow
proper gas volume to heater. If
pipe is too small, undue loss of
pressure will occur.
Installation must include an equipment
shutoff valve, union, and plugged 1/8" NPT
tap. Locate NPT tap within reach for test
gauge hook up. NPT tap must be upstream
from heater (see Figure 14).
External
Regulator
IMPORTANT: Install an equipment shutoff
valve in an accessible location. The equip-
ment shutoff valve is for turning on or
Vent
shutting off the gas to the appliance.
Pointing
Down
Apply pipe joint sealant lightly to male
threads. This will prevent excess sealant
from going into pipe. Excess sealant in pipe
could result in clogged heater valves.
CAUTION: Use pipe joint seal-
ant that is resistant to liquid pe-
troleum (LP) gas.
Pressure
Regulator
Install sediment trap in supply line as shown
in Figure 14. Locate sediment trap where it
is within reach for cleaning. Locate sedi-
ment trap where trapped matter is not likely
to freeze. A sediment trap traps moisture
and contaminants. This keeps them from
going into heater controls. If sediment trap
is not installed or is installed wrong, heater
may not run properly.
Heater
IMPORTANT: Hold pressure regulator with
Cabinet
wrench when connecting it to gas piping
Tee Joint
and/or fittings
Reducer
Bushing to
Test
1/8" NPT
Gauge
1/8" NPT Connection *
Plug Tap
Tee Joint
Sediment
Pipe Nipple
Trap
Cap
Continued