O-TL VFF23NLM, Руководство владельца по эксплуатации и установке

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CONNECTING TO GAS SUPPLY
WARNING: A qualifi ed service
person must connect fi replace to gas
supply. Follow all local codes.
WARNING: Never connect
natural gas fi replace to private
(non-utility) gas wells. This gas is
commonly known as wellhead gas.
IMPORTANT: For natural gas, check gas line
pressure before connecting fi replace to gas
line. Gas line pressure must be no greater
than 14” of water. If gas line pressure is higher,
heater regulator damage could occur.
CAUTION: Never connect
propane/LP fi replace directly to the
propane/LP supply. This fi replace
requires an external regulator (not
supplied). Install the external regulator
between the fi replace and propane/LP
supply.
INSTALLATION
Continued
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” of water. If you do not reduce
incoming gas pressure, fi replace regulator
damage could occur. Install external regula-
tor with the vent pointing down as shown in
Figure 11. Pointing the vent down protects it
from freezing rain or sleet.
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” or greater diameter to
allow proper gas volume to fi replace.
If pipe is too small, undue loss of
volume will occur.
Figure 11 - External Regulator With Vent
Pointing Down
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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 16).
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 fi replaces.
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 fi replace valves.
WARNING: Use pipe joint
sealant that is resistant to liquid
petroleum (LP) gas.
WARNING: This appliance
requires a 5/8” UNF and 1/2” NPT
fi tting (Unifi ed National Fine Thread)
inlet connection and the fl exible gas
line provided.