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107032-01H
For more information, visit www.desatech.com
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INSTALLATION
Continued
INSTALLATION
Connecting Equipment shutoff Valve To Heater Control (Cont.)
Checking Gas Connections
2. Route flexible gas line, included, from fireplace control to
equipment shutoff valve through side or rear access holes in
outer casing.
3. Apply pipe joint sealant lightly to male threads of gas connec-
tor attached to flexible gas line/equipment shutoff valve (see
Figure 32).
Figure 32 - Attaching Flexible Gas Line to Equipment Shutoff
Valve
Flexible Gas Line
from Fireplace
Gas Regulator
Provided With
Fireplace
To Gas Regulator (Thermostat-
Controlled Models) or Control
Valve (Remote-Ready Models)
Equipment
Shutoff Valve
PROPANE/LP
To External
Regulator
NATURAL
To Gas Supply
WARNING: Test all gas piping and connections,
internal and external to unit, for leaks after installing
or servicing. Correct all leaks at once.
WARNING: Never use an open flame to check for
a leak. Apply a noncorrosive leak detection fluid to all
joints. Bubbles forming show a leak. Correct all leaks
at once.
CAUTION: Make sure external regulator has been
installed between propane/LP supply and fireplace.
See guidelines under
Connecting to Gas Supply
,
pages 17 and 18.
Pressure Testing gas Supply Piping system
Test Pressures In Excess Of 1/2 PSIG (3.5 kPa)
1. Disconnect appliance with its appliance main gas valve (control
valve) and equipment shutoff valve from gas supply piping sys-
tem. Pressures in excess of 1/2 psig will damage heater regulator.
2. Cap off open end of gas pipe where equipment shutoff valve
was connected.
3. Pressurize supply piping system by either opening propane/LP sup-
ply tank valve for propane/LP gas or opening main gas valve lo-
cated on or near gas meter for natural gas, or using compressed air.
4. Check all joints of gas supply piping system. Apply noncorrosive
leak detection fluid to all joints. Bubbles forming show a leak.
5. Correct all leaks at once.
6. Reconnect fireplace and equipment shutoff valve to gas sup-
ply. Check reconnected fittings for leaks.
Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa)
1. Close equipment shutoff valve (see Figure 33).
2. Pressurize supply piping system by either opening propane/LP sup-
ply tank valve for propane/LP gas or opening main gas valve lo-
cated on or near gas meter for natural gas, or using compressed air.
CHECKING GAS CONNECTIONS
Figure 33 - Equipment Shutoff Valve
ON
POSITION
OFF
POSITION
Open
Closed
Equipment
Shutoff Valve
CAUTION: Avoid damage to regulator. Hold gas
regulator with wrench when connecting it to gas
piping and/or fittings (Thermostat-Controlled Mod-
els Only).
CAUTION: Avoid damage to gas control. Hold gas
control with wrench when connecting it to gas piping
and/or fittings (Remote-Ready Models Only).
4. Check all gas connections for leaks. See Checking Gas Con-
nections.
5. Replace branch support back into fireplace. Feed flexible gas
line into fireplace base area while replacing branch support. Make
sure the entire flexible gas line is in fireplace base area. Reat-
tach branch support to fireplace with screws removed in step 1.
➞
➞