Installation manual

111285-01A
For more information, visit www.desatech.com
For more information, visit www.desatech.com
11
11
INSTALLATION
Continued
NOTICE: If your installation does not meet the mini-
mum clearances shown, you must do one of the
following:
• raise the mantel to an acceptable height
• remove the mantel
Mantel Clearances for Insert Installation
If there is a mantel above masonry fireplace, you must meet
minimum clearance between mantel shelf and top of fireplace
opening.
NOTICE: Surface temperatures of adjacent walls and
mantels become hot during operation. Walls and
mantels above the firebox may become hot to the
touch. If installed properly, these temperatures meet
the requirements of the national product standard.
Follow all minimum clearances shown in this manual.
INSTALLING GAS PIPING TO FIREPLACE
LOCATION
Installation Items Needed
Before installing fireplace insert, make sure you have the items
listed below.
• external regulator (supplied by installer)
• piping (check local codes)
• sealant (resistant to propane/LP gas)
• equipment shutoff valve *
• test gauge connection *
• sediment trap
• tee joint
• pipe wrench
• approved flexible gas line with gas connector (if allowed by lo-
cal codes) (not provided)
WARNING: A qualified service person must con-
nect fireplace Insert to gas supply. Follow all local
codes.
WARNING: Never connect natural gas fireplace
insert to private (non-utility) gas wells. This gas is
commonly known as wellhead gas.
CAUTION: Use only new, black iron or steel pipe.
Internally-tinned copper tubing may be used in cer-
tain areas. Check your local codes. Use pipe of 1/2"
diameter or greater to allow proper gas volume to
fireplace insert. If pipe is too small, undue loss of
volume will occur.
WARNING: Use pipe joint sealant that is resistant
to liquid petroleum (LP) gas.
CONNECTING FIREPLACE INSERT TO GAS
SUPPLY
Installation must include an equipment shutoff valve, and plugged 1/8"
NPT tap. Locate NPT tap within reach for test gauge hook up. NPT tap
must be upstream from fireplace insert (see Figure 18, page 12).
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.
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.
INSTALLATION
Fireplace Insert Installation Into Framed-In Enclosure (Cont.)
Installing Gas Piping To Fireplace Location
Connecting Fireplace Insert To Gas Supply
CAUTION: Never connect propane/LP heater di-
rectly to the propane/LP supply. This heater requires an
external regulator (not supplied). Install the external
regulator between the heater and propane/LP supply.
* A CSA design-certified equipment shutoff valve with 1/8" NPT
tap is an acceptable alternative to test gauge connection. Purchase
the optional CSA design-certified equipment shutoff valve from
your dealer. See Accessories, page 28.
For propane/LP units, the installer must supply an external regula-
tor. The external regulator will reduce incoming gas pressure. You
must reduce incoming gas pressure to between 11 and 14 inches of
water. If you do not reduce incoming gas pressure, heater regulator
damage could occur. Install external regulator with the vent
pointing down as shown in Figure 17. Pointing the vent down
protects it from freezing rain or sleet.
Figure 17 - External Regulator with Vent Pointing Down
Propane/LP
Supply
Tank
External
Regulator
Vent
Pointing
Down