Desa CGD3018P - Manual (Page 11)

107124-01E
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Figure 12 - Attaching Flexible Gas Hose to Heater Gas Regulator
INSTALLATION
Continued
7. Mark screw locations through holes in mounting brackets (see
Figure 13 and 14). If installing in a brick-bottom fireplace, mark
screw locations in mortar joint of bricks.
8. Remove heater base from fireplace.
9. Drill holes at marked locations using 3/16" drill bit.
10. Attach base assembly to fireplace floor using two masonry
screws (in hardware package) (see Figure 13 or 14).
Figure 13 - Attaching Base Assembly to Fireplace Floor - Dual
Burner Model
Figure 14 - Attaching Base Assembly to Fireplace Floor - Single
Burner Model
Heater Gas
Regulator
Flexible Gas Hose
(if allowed by local
codes)
Fitting
Masonry
Screw
Mounting
Bracket
INSTALLATION
Installing Heater Base Assembly (Cont.)
Connecting to Gas Supply
Masonry
Screw
Mounting
Bracket
Figure 15 - External Regulator With Vent Pointing Down
CONNECTING TO GAS SUPPLY
WARNING: A qualified service person must con-
nect 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.
Installation Items Needed
Before installing heater, make sure you have the items listed below.
• external regulator (supplied by installer)
• piping (check local codes)
• sealant (resistant to propane/LP gas)
• equipment shutoff valve *
• test gauge connection *
• sediment trap
• tee joint
• pipe wrench
* A CSA design-certified equipment shutoff valve with 1/8" NPT
tap is an acceptable alternative to test gauge connection. Purchase
the optional CSA design-certified equipment shutoff valve from
your dealer. See Accessories, page 28.
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 pressure, heater regulator damage could occur. Install
external regulator with the vent pointing down as shown in Figure 15.
Pointing the vent down protects it from freezing rain or sleet.
WARNING: This appliance requires a 1/2" NPT
(National Pipe Thread) inlet connection to the pres-
sure regulator.
Propane/LP
Supply Tank
External
Regulator
Vent Pointing
Down