Local Codes - Desa HGC23TON Owner's Manual

4. Attach flexible gas line to fireplace gas
regulator..See.Connecting to Gas Supply,.
page.14.
5.. Check.all.gas.connections.for.leaks..See.
Checking Gas Connections,.page.14..
CONNECTING TO GAS SUPPLY
WARNING: This appliance re-
quires a 45° male flare fitting 5/8"-
18 UNF (Unified National Fine
Thread) inlet connection and the
flexible gas line provided.
WARNING: A qualified ser-
vice person must connect fire-
place to gas supply. Follow all

local codes.

WARNING: Never connect
natural gas fireplace to private
(non-utility) gas wells. This
gas is commonly known as
wellhead gas.
IMPORTANT: For natural gas, check gas line
pressure before connecting fireplace to gas
line.. Gas. line. pressure. must. be. no. greater.
than 14" of water. If gas line pressure is higher,
heater.regulator.damage.could.occur.
CAUTION: Never connect
propane/LP fireplace directly to
propane/LP supply. This fireplace
requires an external regulator
(not supplied). Install external
regulator between fireplace and
propane/LP supply.
For propane/LP units, installer must supply
an.external.regulator..External.regulator.will.
reduce. incoming. gas. pressure.. You. must.
reduce. incoming. gas. pressure. to. between.
11". and. 14". of. water.. If. you. do. not. reduce.
incoming gas pressure, fireplace regulator
damage.could.occur..Install.external.regulator.
with.vent.pointing.down.as.shown.in.Figure.8..
Pointing the vent down protects it from freez-
ing.rain.or.sleet.
12
INSTALLATION
Continued
black iron or steel pipe. Inter-
nally-tinned copper tubing may
be used in certain areas. Check
your local codes. Use pipe of
1/2" or greater diameter to allow
proper gas volume to fireplace.
If pipe is too small, undue loss
of volume will occur.
Installation must include an equipment shutoff
valve, union and plugged 1/8" NPT tap. Locate
NPT.tap.within.reach.for.test.gauge.hook.up..
NPT.tap.must.be.upstream.from.heater.(see.
Figure 9, page 13).
IMPORTANT: Install equipment shutoff valve
in an accessible location. Equipment shutoff
valve.is.for.turning.on.or.shutting.off.gas.to.
the.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.
sealant that is resistant to liquid
petroleum (LP) gas.
Propane/
LP.Supply.
Tank
Figure 8 - External Regulator With Vent
www.desatech.com
CAUTION: Use only new,
WARNING: Use pipe joint
Pointing Down
External.
Regulator.
with.Vent.
Pointing.
Down
121623-01A