Desa GL36CRP - Manual (Page 9)

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FIREPLACE
INSTALLATION
Continued
This unit has been tested for installation at high
altitude in accordance with Canadian test stan-
dard CAN/CGA-2.17. Higher altitudes affect the
atmospheric pressure and heat valve of gaseous
fuels. When installing this unit at high altitudes,
the rated input will be lower than at sea level. The
lowered oxygen content in the air and the lowered
gas density require installation of a different size
orifice in order to achieve clean combustion of
the unit. Consult the unit data plate for the proper
high-altitude orifice size. Fill out the information
sticker attached to the unit when field converting.
See Specifications, page 14, when derating.
Figure 12 - Millivolt Control Valve
Figure 13 - Electronic Control Valve
ON/OFF
Knob
Pilot
Adjustment
Cap
Pilot Gas Line
Do Not Kink
Inlet
Pressure Outlet
Pressure
To Main
Burner
To Pilot
Burner
E A
From
Gas
Supply
To
Main
Burner
Inlet
Pressure
Outlet
Pressure
A manual shutoff valve has been included in the
appliance’s gas supply system. You may consider
installing an extra gas shutoff valve outside the
appliance’s enclosure (check with local codes)
where it can be accessed more conveniently with a
key through a wall as shown in Figure 14.
Route a 1/2" NPT gas line towards appliance
coming in from back of appliance. If installation
permits, you may alternately route your incoming
gas line from bottom of appliance toward either
end. It is recommended to route gas pipe from back
of fireplace if possible.
CAUTION: Do not kink flex-
ible gas line.
CAUTION: Compounds used
on threaded joints of gas piping
shall be resistant to the action of
Liquefied Petroleum (propane/
LP) and should be applied lightly
to ensure excess sealant does
not enter the gas line.
1. Install a sediment trap between incoming gas
line and gas control valve (see Figure 15).
Sediment trap should extend down center of
pipe. Refer to your local codes.
Key
Extension
Shutoff
Valve
Figure 14 - Typical Exterior Wall Gas
Shutoff Installation
GAS LINE HOOK-UP
WARNING: Gas line hookup
should be done by your gas
supplier or a qualified service
person.
WARNING: Before you pro-
ceed, make sure your gas supply
is OFF.
Figure 15 - Sediment Trap
3" Min.
(76 mm)
Side W
all
Of Appliance
Incoming 1/2" Gas Line
Permitted by Local Codes
Sediment
Trap (Not
Supplied)