Desa CB36N - Manual (Page 16)

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FIREPLACE INSTALLATION
Continued
IMPORTANT:.Install.main.gas.valve.(equip-
ment.shutoff.valve).in.an.accessible.location..
The.main.gas.valve.is.for.turning.on.or.shutting.
off.gas.to.appliance.
Check. your. building. codes. for. any. special.
requirements.for.locating.equipment.shutoff.
valve to fireplaces.
Apply pipe joint sealant lightly to male NPT
threads..This.will.prevent.excess.sealant.from.
going.into.pipe..Excess.sealant.in.pipe.could.
result in clogged fireplace valves.
WARNING: Use pipe joint
sealant that is resistant to liquid
petroleum (LP) gas.
We. recommend. that. you. install. a. sediment.
trap/drip.leg.in.supply.line.as.shown.in.Figure.
23, page 15. Locate sediment trap/drip leg
where. it. is. within. reach. for. cleaning.. Install.
in. piping. system. between. fuel. supply. and.
fireplace. Locate sediment trap/drip leg where
trapped matter is not likely to freeze. A sedi-
ment.trap.traps.moisture.and.contaminants..
This keeps them from going into fireplace
gas.controls..If.sediment.trap/drip.leg.is.not.
installed or is installed wrong, fireplace may
not.run.properly.
CONNECTING FIREPLACE TO GAS
SUPPLY
Installation Items Needed
• 3/4" and a 7/8" open end wrench or adjust-
able.wrench
• sealant (resistant to propane/LP gas, not
provided)
1.. Remove.lower.louver.door.panel.by.lifting.
up.until.disengaged..Swing.forward.and.
out.of.locating.slots.at.bottom.
2. Route flexible gas line (provided by in-
staller). from. equipment. shutoff. valve. to.
fireplace. Route flexible gas supply line
through.one.access.hole.on.each.side.of.
fireplace cabinet.
3. Attach flexible gas line from gas supply
to the 1/2" flare fitting provided on control
valve.(see.Figure.4).
4.. Check.all.gas.connections.for.leaks.(see.
Checking Gas Connections).
Figure 24 - Connecting Flexible Gas Line
to Millivolt Valve
Flexible.Gas.Line.
Do.NOT.Kink
Equipment.
Shutoff.Valve
To.Gas.Supply.
(Natural)
To.External.
Regulator.
(Propane/LP)
Control.Valve
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
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 fireplace and its individual
equipment.shutoff.valve.from.gas.supply.
piping.system..Pressures.in.excess.of.1/.
psig (3.5 kPa) will damage fireplace gas
regulator.
.. 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 fireplace or opening
main.gas.valve.located.on.or.near.gas.
meter for natural gas fireplace or using
compressed.air.
4. Check all joints of gas supply piping sys-
tem..Apply. noncorrosive. leak. detection.
fluid to all joints. Bubbles forming show a
leak..Correct.all.leaks.at.once.
5.. Reconnect. fireplace. and. equipment.
shutoff.valve.to.gas.supply..Check.recon-
nected fittings for leaks.