Desa SL30NT/SL30PT - Manual (Page 8)

111487-01B
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8
CONNECTING TO GAS SUPPLY
WARNING: A qualified service person must con-
nect heater to gas supply. Follow all local codes.
Installation Items Needed
Before installing heater, make sure you have the items listed below.
• external regulator [propane/LP only] (supplied by installer)
• piping to stove location (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. Purchase
the optional CSA design-certified equipment shutoff valve from
your dealer. See Accessories, page 17.
The gas inlet connection for the stove heater is located on the lower
right-hand side of the stove when viewed from the front of the unit.
The gas connection can be made either through the bottom right side
or through the lower back opening as illustrated in Figure 6. Make
sure gas log heater is secured to the stove cavity assembly.
For propane/LP units, the installer must supply an external regulator.
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 7. Pointing the vent down protects it from freezing
rain or sleet.
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.
WARNING: This appliance requires a 1/2" NPT
(National Pipe Thread) inlet connection to the pres-
sure regulator.
INSTALLATION
Continued
Figure 6 - Gas Regulator Location and Gas Line Access Into
Stove Cabinet
Back
Stove
Panel
Front
of
Stove
Unit
Gas Inlet
Connection
Access
Product
Identification
Label
Gas Log Heater
Back View Side View
Figure 7 - External Regulator For Propane/LP Gas With Vent
Pointing Down
Propane/LP
Supply Tank
Vent Pointing
Down
CAUTION: For propane/LP units, use only new,
black iron or steel pipe. Internally-tinned copper tub-
ing 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 heater (see Figure 8, page 9).
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 heater valves.
External Regulator
INSTALLATION
Connecting To Gas Supply
WARNING: Never connect natural gas heater to
private (non-utility) gas wells. This gas is commonly
known as wellhead gas.