Connecting To Gas Supply - Desa CGG3324N Owner's Operation And Installation Manual

OWNER'S MANUAL
INSTALLATION
Continued
CONNECTING TO GAS
SUPPLY
4. Remove heater base from fireplace.
5. Drill holes at marked locations using
3/16" drill bit. Drill at a 45 ° angle.
6. Attach base to fireplace floor using
masonry screws in hardware
package (see Figure 12).
7. Connect to gas supply. See Connect-
ing To Gas Supply.
Heater Gas
Figure 11 - Attaching Flexible Gas Hose
to Heater Gas Regulator
NOTICE: A qualified service per-
son must connect heater to gas
supply. Follow all local codes.
Installation Items Needed
Before installing heater, make sure you have
the items listed below.
piping (check local codes)
sealant (resistant to propane/LP gas)
manual shutoff valve *
test gauge connection *
sediment trap
tee joint
pipe wrench
• An A.G.A. design-certified manual shutoff
valve with 1/8" NPT tap is an acceptable
alternative to test gauge connection. Pur-
Masonry {_
Figure 12- Attaching Heater to Fireplace
Floor
chase the optional A.G.A. design-certified
manual shutoff valve from your dealer. See
Accessories, page 22.
WARNING: Never connect
heater to private (non-utility) gas
wells. This gas is commonly
known as wellhead gas.
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 1/2"
diameter or greater to allow
proper gas volume to heater. If
pipe is too small, undue loss of
pressure will occur.
Installation must include a manual 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 13).
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.
Install sediment trap in supply line as shown
in Figure 13. 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.
_1= CAUTION: Avoid damage to
regulator. Hold gas regulator with
wrench when connecting it to gas
piping and/or fittings.
A.G.A. Design-Certified
Manual ShutoffValve
From Gas With1/8" NPT Tap*
Meter \ Approved
(5"W.C.** to
10.5" W.C. _ \ Flexible Gas
Pressure) _ K-,_t_,_Hose (if allowed
\ PiPe I Gas t"
[]eie ap Ni;ple I Regulator
I
SedimentTrap
Figure 13 - Gas Cont_ectlon
* Purchase the optional A.G.A. design-cer-
tiffed manual shutoffvalve from your dealer.
See Accessories, page 22.
** Minimum inlet pressure for purpose of
input adjustment.
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