GSi PNEG-236, Owner'S Manual, Page: 9 / 20

9
Humidistat-Thermostat
HI-LO TEMPERATURE CONTROL
5. If the unit does not reach desired temperature,
8. Significant changes in outside air temperature
may require readjustment of gas pressure.
Note: If temperature of lo-flame exceeds thermo-
stat settings (above normal outside temperatures)
unit will cycle from lo-flame to off. (Top Dry units will
shut down completely)
1. Remove mounting screws from the thermostat
housing and remove the housing from the bin
wall.
2. Carefully remove the back panel from the hous
ing. (It may be necessary to cut caulking).
The Airstream Humi-
distat- Thermostat
is mounted on the
lower right side of
the grain bin's
transition. This al-
lows for easy ser-
vice and opera-
tion.
OPERATION & SERVICE
1. Turn fan unit on and let it run 3 to 5 minutes to
equalize temperature under the bin.
2. Rotate the thermostat knob clockwise to
warmest position.
3. Open gas valves (including lo-fire valve) to
the heater and turn the heater on. Set heater
gaspressure to a moderately high setting. (5
to 10 PSI)
4. Monitor the thermometer on the thermostat
housing. When the thermostat comes up to
desired temperature, slowly turn the most at
knob counter-clockwise until heater cycles to
lo-flame.
GSI Thermostats are designed and built to withstand
the harsh conditions usually found in drying bins.
A yearly preventative maintenance inspection may
extend the life of your heating controls many years.
3. Blow out any dust or dirt that may have collected
inside the housing.
5. Replace the back panel and caulk the corners to
help seal the unit.
6. Reinstall the unit on the bin wall.
HUMIDISTAT-THERMOSTAT SERVICE
ALWAYS DISCONNECT
AND LOCK OUT POWER
BEFORE WORKING ON OR
AROUND HEATER
gradually increase the gas pressure until the tem-
perature rises to desired level.
6. Adjust the lo-fire valve so that the temperature
drops until the unit cycles back to hi-flame.
7. Watch the unit run through several cycles and
make any final adjustments. (Note: The unit
should cycle approximately two times per
minute. If not adjust gas pressure).
4. Inspect the wiring for any loose connections,
or rodent and insect damage.