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15
200031-01B
NG
LP
INLET GAS
PRESSURE
MAX 1/2
PSIG
(3.5 KPA)
Gas
Esté
Gas
Inlet
NG
Gas
Selector
Selector
de gas
LP
INSTALLATION
Fuel
Selector
Knob
Hex Plug
Gas Connection Fitting
For changing from natural gas supply to propane supply:
1. Remove top screw from cover plate lo-
cated on back of heater (see Figure 13).
Rotate to expose fuel selection device.
2. For propane gas, press in knob using a flat
screwdriver with a blade the thickness of
a quarter and turn knob counterclockwise
until the knob locks into the LP posi-
tion (see Figure 13). Fuel selection device
must be locked in the LP position. Do not
operate heater between locked positions.
3. Rotate and close cover over fuel selection
device and reinstall screw.
4. Remove hex plug (with wrench provided)
from propane/LP gas inlet of regulator
(see Figure 12). Install hex plug into
NG inlet of regulator. Install gas line into
propane/LP inlet of regulator. Use thread
sealant to ensure that there are no leaks.
Figure 13 - Settings for Propane/LP Gas
Selection
CONNECTING TO GAS SUPPLY
WARNING: A qualified ser-
vice technician must connect
heater to gas supply. Follow all
local codes.
WARNING: This appliance
requires a 3/8" NPT (National
Pipe Thread) inlet connection to
the pressure regulator.
WARNING: For natural gas,
Never connect heater to private
(non-utility) gas wells. This gas
is commonly known as wellhead
gas.
WARNING: Do not over-
tighten gas connections.
CAUTION: Use only new,
black iron or steel pipe. Inter-
nally 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 volume to heater. If
pipe is too small, undue loss of
pressure will occur.
CAUTION: For propane/
LP gas, never connect heater
directly to the gas supply. This
heater requires an external
regulator (not supplied). Install
the external regulator between
the heater and gas supply. Gas
supplier provides external regu-
lator for natural gas. The installer
provides the external regulator
for propane/LP gas.
Содержание MD100TBF
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