Desa CGEFP33PR Owner's Operation And Installation Manual page 19

INSTALLATION
Continued
WARNING: For propane/LP
units, make sure external regu-
lator has been installed between
propane/LP supply and heater.
See guidelines under Installing
Gas Piping to Fireplace Loca-
tion , page 17.
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 system.
Pressures in excess of 1/2 psig will damage
fireplace gas 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 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 supply. Check reconnected fit-
tings for leaks.
Test Pressures Equal To or Less Than 1/2
PSIG (3.5 kPa)
1. Close equipment shutoff valve (see Figure 27).
2. Pressurize supply piping system by either
opening propane/LP supply 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.
3. Check all joints from gas meter for natural or
propane/LP supply to equipment shutoff valve
(see Figures 28 or 29). Apply noncorrosive
leak detection fluid to all joints. Bubbles form-
ing show a leak.
4. Correct all leaks at once.
108117-01K
Pressure Testing Fireplace Gas
Connections
1. Open equipment shutoff valve (see Figure 27).
2. Open main gas valve located on or near gas
meter for natural gas or open propane/LP sup-
ply tank valve.
3. Place manual ignition switch in the OFF po-
sition.
4. Check all joints from equipment shutoff valve
to gas valve (see Figure 28 or 29). Apply non-
corrosive leak detection fluid to all joints.
Bubbles forming show a leak.
5. Correct all leaks at once.
6. Light fireplace (see Operating Fireplace,
)
pages 26 through 28). Check all other inter-
nal joints for leaks.
7. Turn off fireplace (see To Turn Off Gas to
Appliance, page 27 or 28).
Equipment
Shutoff
Valve
Figure 27 - Equipment Shutoff Valve
Manual Gas Valve
Figure 28 - Checking Gas Joints for
Manual Gas Valve
Figure 29 - Checking Gas Joints for
www.desatech.com
Natural Gas Fireplace
Equipment Shutoff Valve
Propane/LP Gas Fireplace
Open
O
POS
Closed
PO
Equipment
Shutoff Valve
Gas Meter
Propane/LP
Supply Tank
19