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107553
OWNER’S MANUAL
For more information, visit www.desatech.com
CAUTION: Avoid damage to
regulator. Hold gas regulator with
wrench when connecting it to gas
piping and/or fittings.
INSTALLATION
Continued
Continued
CONNECTING TO GAS
SUPPLY
WARNING: A qualified service
person must connect heater to
gas supply. Follow all local codes.
Installation Items Needed
Before installing heater, make sure you have
the items listed below.
• piping (check local codes)
• sealant (resistant to propane/LP gas)
• equipment shutoff valve *
• test gauge connection *
• sediment trap
• tee joint
• pipe wrench
* A CSA design-certified equipment shutoff
valve with 1/8" NPT tap is an acceptable
alternative to test gauge connection. Pur-
chase the optional CSA design-certified
equipment shutoff valve from your dealer.
See Accessories, page 27.
CAUTION: Use only new, black
iron or steel pipe. Internally-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 vol-
ume 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 heater (see Figure 13).
WARNING: Use pipe joint seal-
ant that is resistant to liquid pe-
troleum (LP) gas.
We recommend that you install a sediment
trap in supply line as shown in Figure 12.
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 contami-
nants. This keeps them from going into heater
controls. If sediment trap is not installed or is
installed wrong, heater may not run properly.
WARNING: Never connect
heater to private (non-utility) gas
wells. This gas is commonly
known as wellhead gas.
Figure 13 - Gas Connection
* Purchase the optional CSA design-certified equipment shutoff valve from your dealer. See
Accessories, page 27.
** Minimum inlet pressure for purpose of input adjustment.
Figure 11 - Attaching Flexible Gas Hose
to Heater
Figure 12 - Attaching Base Assembly to
Fireplace Floor
Flexible Gas Hose (if
allowed by local codes)
Fitting
Masonry Screw
Mounting
Flanges
Tee
Joint
Pipe
Nipple
Cap
3" Minimum
Sedi-
ment
Trap
Gas
Control
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)
WARNING: This appliance re-
quires a 1/2" NPT (National Pipe
Thread) inlet connection to the
pressure regulator.
IMPORTANT:
Install equipment shutoff
valve in an accessible location. The equip-
ment shutoff valve is for turning on or
shutting off the gas to the appliance.
Check your building codes for any special
requierments 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 heater valves.
7. Attach base assembly to fireplace floor
using two masonry screws (in hardware
package) (see Figure 12).
8. Connect to gas supply. See Connect-
ing To Gas Supply.