Congratulations . . .
On your purchase of our Single Package Air Conditioning Unit. This energy efficient unit has been precision designed, manufactured of high quality materials and has passed many rigorous inspections and tests to ensure years of satisfactory service.
This manual is meant to increase your understanding of your system, tells you how to operate it efficiently and how to obtain the greatest measure of comfort at the lowest operating expense. Please read this manual thoroughly.
We appreciate your interest in our products and your decision to purchase our Single Package Unit. Enjoy your comfort.
This gas/electric, heating/cooling unit is designed for outdoor use and can be installed anywhere from grade level to the roof. Electric air conditing in the summer and gas heating in the winter - all from a single unit.
SYSTEM OPERATION
THERMOSTATS
Set your thermostat for either heating or cooling then set it for the desired temperature. DO NOT MOVE THE THERMOSTAT RAP- IDLY ON AND OFF, OR BACK AND FORTH FROM HEAT TO COOL. THIS COULD DAMAGE YOUR EQUIPMENT.
Always allow at least 5 minutes between changes. Find the tem- perature that is most comfortable to you, and then LEAVE YOUR THERMOSTAT ALONE. (Exception is for night or vacation "set back" to conserve energy)
Manually moving the thermostat up or down will not speed up tem- perature changes in your rooms. This only causes the thermostat switch to function at your command rather than responding to room tem- perature.
Heat generated by devices other than the furnace may interfere with thermostat performance. Therefore, lamps, radios, television sets, etc. should not be placed near the thermostat.
HOT SURFACE PILOT
IGNITION DEVICE
This unit is equipped with a hot surface pilot ignition device. The control is designed to automatically light the burner each time the thermostat "calls" for heat.
CAUTION: Do not attempt to manually light the burners. Per- sonal injury could result
HEATING
When the thermostat calls for "HEAT", the thermostat energizes the combustion air blower.
After airflow is established, the air proving switch closes, the hot sur- face ignitor is energized and the pilot valve opens igniting the pilot flame.
The flame rod senses a flame and
30 seconds after the main burners light the circulating fan is energized at the heating speed.
When the thermostat is satisfied, the ignition system is
After a 5 second postpurge timing period, the combustion air blower is
When this field selected heat fan off timing is completed the circulat- ing fan is
If the primary, rollout and auxiliary limit switches open, the thermostat and ignition system is
The combustion blower remains energized for the 5 second post- purge timing period if the primary, rollout and auxiliary limit switches remake the contact (the rollout and auxiliary limit switches must be manually reset). The circulating fan remains energized for the selected heat delay off timing.
Normal operation of the system resumes.
WARNING: Should overheat- ing occur, shut off the manual gas valve external to the appli- ance before shutting off the electrical supply.
COOLING
When the thermostat calls for "COOL", the thermostat signals the compressor and outdoor fan to run.
After a cool fan on delay timing of
2 seconds, the circulating fan is en- ergized at cooling speed.
When the thermostat is satisfied, the compressor and outdoor fan is
After a cool fan off delay timing of 30 seconds the circulating fan is de- energized.
CIRCULATING FAN
When the thermostat calls for "FAN", the thermostat terminal sig- nals the circulating fan to run at the heat speed 2 seconds after the thermostat is energized.
If a call for "HEAT" occurs, the circulating fan continues to run at the heat speed.
If a call for "COOL" occurs, the circulating fan switches to cool speed after a 4 second delay.
When the thermostat ends the call for "FAN", the thermostat is
INPUT
The correct heat capacity of the furnace is regulated by the burner orifices and the gas pressure. The proper orifices are furnished but the gas pressure regulator must be ad- justed by the installing serviceman or gas company. This is a
2 | Unitary Products Group |
