Comfortflame.US.com
900578-00_NC
7
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.
PRESSURE TESTING GAS SUPPLY PIPING SYSTEM
Test Pressures In Excess Of 1/2 PSIG (3.5 kPa)
1. Disconnect log set and its individual equipment shutoff valve from
gas supply piping system.
2. Cap off open end of gas pipe where equipment shutoff valve was
connected.
3. Pressurize supply piping system by either using compressed air
or opening main gas valve located on or near gas meter.
4. Check all joints of gas supply piping system. Apply noncorrosive leak
detection fluid to gas joints. Bubbles forming show a leak.
5. Correct all leaks at once.
6. Reconnect log set and equipment shutoff valve to gas supply.
Check reconnected fittings for leaks.
Figure 4 - Gas Connection
* Purchase the optional equipment shutoff valve from your dealer.
** Minimum inlet pressure for purpose of input adjustment.
3" Minimum
Sediment Trap
From Gas
Meter (5"
W.C.** to
10.5" W.C.
Pressure)
Equipment Shutoff
Valve With 1/8" NPT
Tap*
Approved Flexible Gas Hose
(if allowed by local codes)
Tee
Joint
Pipe
Nipple
Cap
Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa)
1. Close equipment shutoff valve (see Figure 5).
2. Pressurize supply piping system by either using compressed air
or opening main gas valve located on or near gas meter.
3. Check all joints from gas meter to equipment shutoff valve (see
Figure 5). Apply noncorrosive leak detection fluid to gas joints.
Bubbles forming show a leak.
4. Correct all leaks at once.
Figure 5 - Checking Gas Joints
Gas Meter
Equipment
Shutoff
Valve
HEARTH KIT ASSEMBLY AND INSTALLATION
Kit Assembly - Single and Dual-Flame Only
1. Determine which side gas line will be coming into fireplace.
NOTICE: Triple-burner models Mendocino18LZN and
Mendocino24LZN come pre-assembled with gas inlet
on right side of burner pan. DO NOT attempt to reposi-
tion burner on triple-burner models. If your fireplace
supply is on the left side, a longer 3/8" flex line should
be purchased and routed behind burner pan and away
from flame area.
2. Using a hammer and screw driver, remove knockout plug from
side of pan that corresponds to gas line (see Figure 6, page 8).
3. Unscrew burner inlet fitting from burner manifold.
4. Place burner manifold in pan with threaded opening facing open
knockout plug.
5. Using thread sealant (resistant to the action of propane/LP gas)
on larger end of fitting, screw burner inlet fitting through hole
and into burner manifold (see Figure 6, page 8). Tighten using a
wrench. If using propane/LP gas, see Propane/LP Gas Conversion,
page 10.
6. Using burner clamp, screw, and nut provided, assemble clamp
to pan (“U” style and triple burners only). This will hold burner
manifold in place.
7. If using optional GA9050A-1 (F0235) kit, go to Optional
GA9050A-1 (F0235) On/Off Safety Valve/Pilot Kit , page 8, for
installation instructions. If using optional GA9150A (F0237) kit,
follow instructions included with kit for installation and operation.
