Desa VUL18NR Owner's Operation And Installation Manual page 14

1. Apply pipe joint sealant lightly to male
threads of gas fitting (provided). For
Thermostatically-Controlled Models con-
nect approved flexible gas hose to gas
regulator of heater (see Figure 11). For
Remote-Ready models connect approved
flexible gas hose to inlet side of gas con-
trol (see Figure 12).
IMPORTANT: Hold gas regulator with
wrench when connecting flexible gas
hose (Thermostatically-Controlled Models
Only).
2. Position heater base assembly in
fireplace.
3. Mark screw locations through holes in
front panel of base (see Figure 13). If
installing in a brick-bottom fireplace, mark
screw locations in mortar joint of bricks.
4. Remove heater base from fireplace.
5. Drill holes at marked locations using 3/16"
drill bit.
6. Attach base, through holes in front panel
of base, to fireplace floor using masonry
screws provided in hardware package
(see Figure 13).
7. Connect to gas supply. See Connecting
To Gas Supply.
Flexible Gas Hose (if
allowed by local codes)
Figure 11 - Attaching Flexible Gas Hose to
Heater Gas Regulator (Thermostatically-
Controlled Models Only)
Flexible Gas Hose
(if allowed by local
codes)
Figure 12 - Attaching Flexible Gas Hose
to Heater Gas Regulator
(Remote-Ready Models Only)
14
INSTALLATION
Continued
CONNECTING TO GAS SUPPLY
Heater Gas
Regulator
Gas Control
www.desatech.com
Masonry
Screw
Figure 13 - Attaching Base to Fireplace
Floor (Remote-Ready Models Only)
WARNING: This appliance
requires a 1/2" NPT (National
Pipe Thread) inlet connection to
the pressure regulator.
WARNING: A qualified ser-
vice person must connect heater
to gas supply. Follow all local
codes.
CAUTION: Never connect
propane/LP fireplace directly
to the propane/LP supply. This
heater requires an external regu-
lator (not supplied). Install the
external regulator between the
heater and propane/LP supply.
WARNING: Never connect
natural gas fireplace to private
(non-utility) gas wells. This
gas is commonly known as
wellhead gas.
122001-01C