22
2.0 OPERATING INSTRUCTIONS
This appliance is a balanced flue heater and is designed
to operate with all combustion air being siphoned from
the outside of the building and all exhaust gases ex-
pelled to the outside of the building.
WARNING:
THIS UNIT IS NOT FOR USE WITH
SOLID FUEL.
The control system for these models is a millivolt type.
It consists of a gas control valve/variable regulator, a
standing pilot assembly, a thermopile/thermocouple
assembly, a piezo ignitor, an ON/OFF rocker switch,
and a safety high temperature limit switch. The con-
trols are located in the lower compartment behind the
lower grille. Access to this compartment is gained by
rotating the grille up. See Figure 1.
WARNING:
DO NOT CONNECT 220-240 VAC TO
THE GAS CONTROL VALVE OR CONTROL WIRING
SYSTEM OF THIS UNIT.
The gas control system is wired so the thermopile, when
heated with the pilot light, will provide approximately
350 to 500 millivolts. This activates the gas control valve.
See Figure 27 for appliance wiring diagram.
Additionally, a high temperature limit switch is wired to
ground and will shut-off the pilot and burner should a
high surface temperature condition occur. The pilot and
main burner must be re-lit when the heater cools. See
Figure 27.
When lit for the first time, the appliance will emit a slight
odor for an hour or two. This is due to paint and lubri-
cants used in the manufacturing process. Additionally,
for the first few minutes after each lighting, vapor may
condense and fog the glass and the flames may be
blue. After a few minutes this moisture will disappear
and within 15-30 minutes the flames should become
yellow.
The heater may produce a noise, caused from metal
expansion and contraction as it heats up and cools
down. This noise is similar to one that a furnace or
heat duct may produce and does not affect the opera-
tion or longevity of the heater.
FIGURE 25
FIGURE 26
Standing Pilot
3/8" (9.5mm)
