Desa GA3700 - Manual (Page 16)

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INSTALLATION
Continued
CAUTION: Make sure exter-
nal regulator has been installed
between propane/LP supply and
fireplace. See guidelines under
Connecting Fireplace to Gas
Supply, page 15.
pRESSURE TESTING GAS SUppLY
pIpING SYSTEM
Test Pressures In Excess Of 1/2 PSIG
(3.5 kPa)
1. Disconnect fireplace 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 fireplace 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 sys-
tem. 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.
Test Pressures Equal To or Less Than
1/2 PSIG (3.5 kPa)
1. Close equipment shutoff valve (see Fig-
ure 21).
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 22 or
23). Apply noncorrosive leak detection
fluid to all joints. Bubbles forming show a
leak.
4. Correct all leaks at once.
Figure 21 - Equipment Shutoff Valve
Open
Closed
Equipment
Shutoff
Valve
Figure 23 - Checking Gas Joints for
Propane/LP Gas
Equipment
Shutoff Valve
Gas Control Valve
Gas Meter
Figure 22 - Checking Gas Joints for
Natural Gas
Equipment Shutoff Valve
Propane/LP
Supply Tank
Gas Control Valve
pRESSURE TESTING FIREpLACE GAS
CONNECTIONS
1. Open equipment shutoff valve (see Fig-
ure 21).
2. Open main gas valve located on or near
gas meter for natural gas or open pro-
pane/LP supply tank valve.
3. Make sure control knob of fireplace is in
the OFF position.
4. Check all joints from equipment shutoff
valve to gas control valve (see Figures
22 or 23). Apply noncorrosive leak de-
tection fluid to all joints. Bubbles forming
show a leak.