User Information Manual

507302-01C Page 3 of 6mrcool.com
OPERATING YOUR UNIT
7. Wait 5 minutes to clear out any gas, then smell for gas
(including at the bottom of the unit near the ground). If
you smell gas, stop and follow the directions in WHAT
TO DO IF YOU SMELL GAS on page 1. If you don’t
smell gas, continue to next step.
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to “ON”.
9. Replace the burner compartment access panel.
10. Turn on all electric power to the unit.
11. Set the thermostat to the desired setting.
12. If the unit will not operate, follow the instructions found
below in To Turn Off Gas to Unit and call your service
technician or gas supplier.
When the thermostat calls for gas heat, the vent motor will
purge the system for 30 seconds (nominal). When the
prepurge time has expired, the gas valve will open for direct
shut off the gas valve. The ignition system is designed
been established after the third trial, the system will go into
lockout. After 1 hour, the system will try three more times.
If the system goes into lockout, it can be reset by turning
your thermostat down or off for 10 seconds and then back
to the desired point.
to the gas valve is opened and the burners are shut off.
To shut down the unit, set the thermostat to the “OFF” position.
To Turn Off Gas to Unit
1. Set the thermostat to the lowest setting.
2. Turn off all electric power to the unit if service is to be
performed.
3. Remove the burner compartment access panel.
4. Slide the gas control switch, or turn the gas control knob
“OFF” (see Figure 1). Do not force.
5. Replace the burner compartment access panel.
These units are equipped with an ignition device which
automatically lights the burners.
smell around furnace area for gas. Be
sure to smell near the unit base because some gas is heavier
than air and will settle to the lowest point. See WHAT TO DO
IF YOU SMELL GAS on page 1 if the odor of gas is present.
Use only your hand to slide the gas control switch;
use tools. If the switch will not move by hand, don’t try
1. STOP! Read the previous safety information.
2. Set the thermostat to the lowest setting.
3. Turn off all electric power to the unit.
4. Remove the burner compartment access panel.
5. This appliance is equipped with an automatic ignition
device.
6. Slide the gas control switch, or turn the gas control
knob, to “OFF” (see Figure 1).
Figure 1
Regulator
Adjustment
(Under Cap)
Regulator
Adjustment