Desa CHAM55N Safety Information And Installation Manual page 9

INSTALLATION
Continued
4. Place burner pan assembly in center of chime-
nea floor with front of pan facing chimenea
opening.
5. Attach loose end of flex connector to the 3/8"
flare fitting at rear of chimenea.
11/16"
Wrench
Flare
Fitting
Figure 7 - Installing Manual Control Valve
CONNECTING TO NATURAL GAS
SUPPLY
WARNING: A qualified ser-
vice person must connect log
set to gas supply. Follow all
local codes.
WARNING: Never connect
heater to private (non-utility)
gas wells. This gas is commonly
known as wellhead gas.
IMPORTANT: Check gas line pressure before
connecting heater to gas line. Gas line pressure
must be within the range of pressure specified in
Figure 9, page 10. If gas line pressure is higher,
damage to the control valve could occur.
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"
(13 mm) diameter or greater to
allow proper gas volume to log
set. If pipe is too small, undue
loss of volume will occur.
901918-01J
sealant that is resistant to liquid
petroleum (LP) gas.
For natural gas units, a minimum 1/2" (13 mm)
diameter or greater rigid black iron supply line
must be provided down stream from gas meter and
at above ground location of outdoor appliance.
Special code provisions apply to outdoor piping
when installed above ground and underground. All
outdoor gas piping must be installed and protected
Bulkhead
in accordance with local code and in absence of
Fitting
local code with Part 3 of the National Fuel Gas
Codes ANSI Z223.1/NFPA 54 (U.S.) or CAN/CSA
B149 Installation Codes (Canada).
A flexible gas line and an equipment shutoff
valve with pressure test point must be provided
upstream of manual control valve provided with
the chimenea.
A model GA5010 equipment shutoff valve with a
1/8" NPT pressure tap may be purchased through
your dealer. See Accessories, page 17.
A model GA5080 3/8" flexible supply line may be
purchased through your dealer. See Accessories,
page 17.
IMPORTANT: Install equipment shutoff valve at
an accessible point in the supply line ahead of the
flexible connection. The equipment shutoff valve
is for shutting off the gas to the appliance when
a leak occurs between the supply connection and
the manual control valve.
Codes require that a 3" (77 mm) minimum drip
leg or sediment trap be installed in the supply line
nearest the inlet of the appliance. If not already
provided at the outlet of gas meter, check with
local codes as to whether a drip leg or sediment
trap need be provided (see Figure 8).
From Gas Meter [5" (17 mm) W.C.
to 10.5" (67 mm) W.C. Pressure]
" (7.7 mm)
Minimum
* Purchase the optional CSA design-certified
equipment shutoff valve from your dealer. See
Accessories, page 17.
www.desatech.com
WARNING: Use pipe joint
CSA Design-Certified
Equipment Shutoff Valve
With 1/8" NPT Tap*
Cap Pipe Tee
Nipple Joint
Sediment Trap
Figure 8 - Gas Connection
Approved
Flexible Gas
Hose (if allowed
by local codes)
9