Desa CGEFP33PRB - Manual (Page 19)

www.desatech.com 111245-01C 19
3. Attach the flexible gas line to gas supply (see
Figure 26). Check tightness of flexible gas
line attached to gas regulator of fireplace (see
Figure 26).
4. Check all gas connections for leaks. See
Checking Gas Connections.
5. Replace fireplace floor assembly. Feed flexible
gas line into fireplace base area while replacing
fireplace floor assembly. Make sure the entire
flexible gas line is in fireplace base area.
Note: Be careful of wires and components on
underside of fireplace floor. Reattach fireplace
floor assembly with screws removed in step
3 of Removing Fireplace Screen and Floor
Assembly, page 9.
INSTALLATION
Continued
Figure 26 - Attaching Gas Lines Together
From Gas Meter
(Natural)
From External
Regulator
(Propane/LP)
Flexible Gas Line
from Fireplace Gas
Regulator
To Fireplace
Gas Regulator
Equipment
Shutoff Valve
Provided by
Installer
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 detec-
tion fluid to all joints. Bubbles
forming show a leak. Correct all
leaks at once.
WARNING: For propane/LP
units, make sure external regula-
tor 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 equipment
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 reconnected fittings
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
located on or near gas meter for natural gas
or using compressed air.
3. Check all joints from gas meter for natural gas or
propane/LP supply to equipment shutoff valve for
propane/LP gas (see Figures 28 or 29, page 20).
Apply noncorrosive leak detection fluid to all
joints. Bubbles forming show a leak.
4. Correct all leaks at once.
Figure 27 - Equipment Shutoff Valve
Open
Closed
Equipment
Shutoff
Valve