Design Dynamics VTD-24N-JHB - Manual (Page 7)

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INSTALLATION
Continued
CONNECTING TO GAS SUPPLY
WARNING: A qualified ser-
vice person must connect heater
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.
Installation Items Needed
Before installing log set, make sure you have
the items listed below.
• piping (check local codes)
• sealant (resistant to propane/LP gas)
•. equipment.shutoff.valve*
•. test.gauge.connection*
• adjustable (crescent) wrench or pliers
•. sediment.trap
• tee joint
• pipe wrench
* A CSA design-certified equipment shutoff
valve with 1/8" NPT tap is an acceptable al-
ternative.to.test.gauge.connection..Purchase.
the optional CSA design-certified equipment
shutoff.valve.from.your.dealer..
CAUTION: Use only new,
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" diameter or greater to allow
proper gas volume to heater. 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.log.set.(see.
Figure 4).
IMPORTANT:.Install.equipment.shutoff.valve.
in. an. accessible. location.. The. equipment.
shutoff.valve.is.for.turning.on.or.shutting.off.
the.gas.to.the.appliance.
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.heater.valves.
WARNING: Use pipe joint
sealant that is resistant to liquid
petroleum (LP) gas.
We. recommend. that. you. install. a. sediment.
trap in supply line as shown in Figure 4.
Locate sediment trap where it is within reach
for cleaning. Install in piping system between
fuel.supply.and.appliance..Locate.sediment.
trap where trapped matter is not likely to
freeze. A sediment trap traps moisture and
contaminants.. This. keeps. them. from. going.
into. heater. controls.. If. sediment. trap. is. not.
installed or is installed wrong, heater may
not.run.properly.
CAUTION: Avoid damage to
gas control. Hold gas control
with wrench when connecting it
to gas piping and/or fittings.
Figure 4 - Gas Connection
* Purchase the optional CSA design-certified
shutoff.valve.from.your.dealer..
**.Minimum.inlet.pressure.for.purpose.of.input.
adjustment.
Approved.Flexible.
Gas.Hose.(If.
allowed by local
codes)
CSA Design-Certified
Equipment.Shutoff.
Valve with 1/8" NPT
Tap*
From.Gas.
Meter (5" W.C.**
to 10.5" W.C.
Pressure)
3" Min.
Pipe. Cap. Tee
Nipple
Joint
Sediment.Trap