Desa BVDR18 - Manual (Page 7)

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INSTALLATION
Continued
CONNECTING TO GAS SUPPLY
WARNING: A qualified ser-
vice person must connect log
set to gas supply. Follow all
local codes.
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
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 log set. If
pipe is too small, undue loss of
volume will occur.
Installation must include an equipment shutoff
valve, union, and a 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
gas to 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 a clogged burner injector.
WARNING: Use pipe joint
sealant that is resistant to liquid
petroleum (LP) gas.
We recommend that you install a sediment
trap in the 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 heater. Locate sediment
trap where trapped matter is not likely to
freeze. A sediment trap traps moisture and
contaminants. This keeps them from going
into log set controls. If sediment trap is not
installed or is installed wrong, log set may
not run properly.
Figure 4 - Gas Connection
* Purchase the optional CSA design-certified
equipment shutoff valve from your dealer.
** Minimum inlet pressure for purpose of input
adjustment.
3" Minimum
From Gas
Meter (5"
W.C.** to
10.5" W.C.
Pressure)
CSA Design-Certified
Equipment Shutoff Valve
With 1/8" NPT Tap*
Approved Flexible
Gas Hose (if allowed
by local codes)
Tee Pipe Cap
Joint Nipple
Sediment Trap