Installation manual

www.usaprocom.com
11200020-01A
NG
LP
Left Side of HeaterBack of Heater
NG
LP
Gas Inlet
Gas esté
NG
LP
Back Side of Heater
INSTALLATION
GAS SELECTION
This appliance is factory
preset for propane/LP gas.
No changes are required for
connecting to propane/LP.
Only a qualified installer or
service technician can perform
gas selection and connecting to
gas supply.
CAUTION: Two gas line in-
stallations at the same time are
prohibited. The access plate
to the simple switching means
shall not be opened while the
heater is in operation.
CAUTION: To avoid gas
leakage at the inlet of regulator,
a qualied installer or service
technician must use supplied
hex plug with sealant.
WARNING: Do not attempt to
access or change the setting of
the fuel selection means.
Access to and adjustment of the fuel selection
means must only be performed by a qualied
service person when connecting this appliance to
a specied fuel supply at the time of installation.
Change of the selector setting to other than
the fuel type specied at the time of installa-
tion could damage this appliance and render
it inoperable.
The installer shall replace the access cover
before completing the installation and operat-
ing this appliance.
For changing from propane to
natural gas supply:
1. Remove bottom screw from cover plate
located on back side of heater (see Figure
4). Rotate to expose fuel selection device.
2. For NATURAL GAS, press in knob using
a at screwdriver with a blade with thick-
ness of a quarter and turn knob clockwise
until the knob locks into the NG
position (see Figure 5). Fuel selection
device must be locked in the NG position.
Do not operate heater between locked
positions!
3. Rotate and close cover over fuel selection
device and reinstall screws.
4. Remove hex plug (with wrench provided)
from natural gas inlet of regulator (see
Figure 5). Install gas line into NG inlet of
regulator. Use thread sealant to assure
there are no leaks.
Figure 4 - Gas Control Locations
Figure 5 - Settings for Natural Gas
Selection
Cover Plate for
Fuel Selection
Device
Gas Regulator
Inlet Connections
Fuel Selector Knob
Gas
Connection
Fitting
Hex Plug