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INSTALLATION
16
Checking Gas Connections
INSTALLATION
Continued
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 external regulator has been
installed between propane/LP supply and fireplace.
See guidelines under Connecting to Gas Supply ,
pages 14 and 15.
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 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 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 23).
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.
Equipment
Shutoff Valve
Figure 23 - Equipment Shutoff Valve
For more information, visit www.desatech.com
For more information, visit www.desatech.com
Open
ON
POSITION
OFF
Closed
POSITION
3. Check all joints from gas meter to equipment shutoff valve for
natural gas or propane/LP supply to equipment shutoff valve
for propane/LP (see Figures 24 or 25). Apply noncorrosive
leak detection fluid to all joints. Bubbles forming show a leak.
4. Correct all leaks at once.
Pressure Testing Fireplace Gas Connections
1. Open equipment shutoff valve (see Figure 23).
2. Open main gas valve located on or near gas meter for natural
gas or open propane/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 regulator
(Thermostat-Controlled Models), or to gas control valve (Remote-
Ready Models) (see Figures 24 or 25). Apply noncorrosive leak
detection fluid to all joints. Bubbles forming show a leak.
5. Correct all leaks at once.
6. Light fireplace (see Operating Fireplace, pages 19 through 23).
Check all other internal joints for leaks.
7.
Turn off fireplace (see To Turn Off Gas to Appliance, page 20
for Thermostat-Controlled Models or page 22 for Remote-
Ready Models).
Gas Regulator or
Gas Control Valve
Figure 24 - Checking Gas Joints (Propane/LP Only)
Gas Regulator or
Gas Control Valve
Figure 25 - Checking Gas Joints (Natural Gas Only)
Equipment
Shutoff Valve
Propane/LP
Supply
Tank
Equipment
Shutoff Valve
Gas Meter
111244-01A
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