Table of Contents
Advertisement
INSTALLATION
14
Connecting Equipment Shutoff Valve to Heater Control (Cont.)
Checking Gas Connections
INSTALLATION
Continued
NOTICE : Most building codes do not permit con-
cealed gas connections. A flexible gas line is pro-
vided to allow accessibility from the fireplace (see
Figure 23). The flexible gas supply line connection to
the equipment shutoff valve should be accessible.
2.
Apply pipe joint sealant lightly to male threads of gas connec-
tor attached to flexible gas line (see Figure 23).
3.
Check all gas connections for leaks. See Checking Gas Con-
nections.
4.
Feed flexible gas line into fireplace base area. Make sure the
entire flexible gas line is in fireplace mantel base area.
CAUTION: Avoid damage to regulator. Hold gas
regulator with wrench when connecting it to gas
piping and/or fittings.
To Fireplace
Gas Regulator
Flexible Gas Line from
Fireplace Gas Regulator
Figure 23 - Attaching Flexible Gas Lines Together
CHECKING GAS CONNECTIONS
WARNING: Test all gas piping and connections
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.
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 (con-
trol valve) and equipment shutoff valve from gas supply pip-
ing system. Pressures in excess of 1/2 psig will damage fire-
place regulator.
Equipment Shutoff Valve
Provided by Installer
Propane/LP
To External
Regulator
Natural Gas
To Gas Meter
For more information, visit www.desatech.com
For more information, visit www.desatech.com
2. Cap off open end of gas pipe where equipment shutoff valve
was connected.
3. Pressurize supply piping system by either opening propane/LP sup-
ply 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 a non-
corrosive leak detection fluid to gas joints. Bubbles forming
show a leak.
5. Correct all leaks at once.
6. Reconnect heater 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 24).
2. Pressurize supply piping system by either opening propane/LP sup-
ply 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 to equipment shutoff valve
(see Figures 25 or 26, page 15). Apply a noncorrosive leak
detection fluid to gas joints. Bubbles forming show a leak.
4. Correct all leaks at once.
Pressure Testing Fireplace Gas Connections
1. Open equipment shutoff valve (see Figure 24).
2. Open main gas valve located on or near gas meter.
3. Make sure control knob of fireplace is in the OFF position.
4.
Check all joints from equipment shutoff valve to thermostat gas
valve (see Figures 25 or 26, page 15). Apply a noncorrosive
leak detection fluid to gas joints. Bubbles forming show a leak.
5. Correct all leaks at once.
6. Light fireplace (see Operating Fireplace, pages 17 through
19). Check all other internal joints for leaks.
7.
Turn off fireplace (see To Turn Off Gas to Appliance, page 18).
8. Replace front panel.
Equipment
Shutoff
Valve
Figure 24 - Equipment Shutoff Valve
Open
ON
POSITION
OFF
Closed
POSITION
109774
Advertisement
Table of Contents
