Desa HGC23TON Owner's Manual page 14

CHECKING GAS CONNECTIONS
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 exter-
nal regulator has been installed
between propane/LP supply
and fireplace. See guidelines
under Connecting to Gas Sup-
ply, page 12.
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 equip-
ment.shutoff.valve.from.gas.supply.piping.
system..Pressures.in.excess.of.1/2.psig.
will.damage.heater.regulator.
2. Cap off open end of gas pipe where equip-
ment.shutoff.valve.was.connected.
3. Pressurize supply piping system by either
opening. propane/LP. supply. tank. valve.
for.propane/LP.gas.or.opening.main.gas.
valve. located. 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.supply..Check.recon-
nected fittings for leaks.
14
INSTALLATION
Continued
Test Pressures Equal To or Less Than
1/2 PSIG (3.5 kPa)
1. Close equipment shutoff valve (see Fig-
ure.11).
2. Pressurize supply piping system by either
opening. propane/LP. supply. tank. valve.
for.propane/LP.gas.or.opening.main.gas.
valve. located. on. or. near. gas. meter. for.
natural.gas.or.using.compressed.air.
3. Check all joints from gas meter to equip-
ment. shutoff. valve. for. natural. gas. or.
propane/LP supply to equipment shutoff
valve. for. propane/LP. (see. Figures. 12. or.
Figure 13, page 15). Apply noncorrosive
leak detection fluid to all joints. Bubbles
forming.show.a.leak.
4.. Correct.all.leaks.at.once.
Equipment
Shutoff.Valve
Figure 11 - Equipment Shutoff Valve
Propane/LP.
Supply.Tank
www.desatech.com
Equipment
Shutoff.Valve
Gas.Valve
Figure 12 - Checking Gas Joints
(Propane/LP Only)
Open
Closed
121623-01A