General Information
This Single Package Electric Heating/ Electric Cooling Rooftop Unit unit has been designed and built to provide many years of safe and dependable comfort, providing it is properly installed and maintained.With regular maintenance, this unit will operate satisfactorily year after year. Abuse, improper use, and/or improper maintenance can shorten the life of the appliance and create hazards for you.Please read this manual carefully to familiarize yourself with operation, maintenance, and safety procedures for this unit.
A regular service and maintenance schedule should be established to ensure effi cient and safe operation of the unit. Contact your dealer for a periodic unit inspection by a qualifi ed service technician.
WARNING!
To avoid possible equipment damage, fire, or death, the following instructions must be observed regarding unit location and operation procedures.
Unit Location
The area around this single package air conditioning unit and the vicinity of any other appliances must be kept clear and free of combustible materials, gasoline, and other
flammable vapors and liquids. Do not store or use flammable items such as paint, varnish, or strippers in the vicinity of the unit.
Do not use the area around the unit as a storage area. This area must be kept clear and clean. The unit must also be kept clear of loose or exposed insulation materials. Examine the unit’s area when it is installed or when insulation is added, since some insulation materials may be combustible.
inspect the unit and to replace any part of the electrical control system which has been under water.
Ductwork
The duct connections must be physically sound and sealed to the unit’s casing.
The return air and circulating air ductwork must not be connected to any other heat producing device such as a fi replace insert, stove, etc. Doing so may result in fi re, explosion, personal injury, carbon monoxide poisoning, or property damage.
Operating Instructions
Cooling Operation
1.Set the thermostat system switch to COOL and the thermostat fan switch to AUTO. (See Figure 1)
2.Set the thermostat temperature selector to the desired temperature level.The outdoor fans, compressors, and indoor blower will all cycle on and off to maintain the indoor temperature at the desired cooling level.
Heating Operation
1.Set the thermostat system switch to HEAT and the thermostat fan switch to AUTO. (See Figure 1)
2.Set the thermostat temperature selector to the desired temperature level.The indoor blower and optional electric heat module will cycle on and off to maintain the indoor
temperature at the desired heating level.
Continuously — Set the thermostat fan switch to ON (may be called CONT on some thermostat models). (See Figure 1) The indoor blower will start immediately, and will run continually until the fan switch is reset to AUTO.The continuous indoor blower operation can be obtained with the thermostat system switch set in any position, including OFF. The continuous indoor blower operation is typically used to circulate the indoor air to equalize a temperature unbalance due to a solar load, cooking, or fi replace operation
System Shutdown— Set the thermostat system switch to OFF and the thermostat fan switch to AUTO. (See Figure 1) The system will not operate, regardless of the thermostat temperature selector(s) setting.
To Operate the Indoor Blower Continuously
Theindoorblowerwillstartimmediately, and will run continually until the fan switch is reset to AUTO.
The continuous indoor blower operation can be obtained with the thermostat system switch set in any position, including OFF.
The continuous indoor blower operation is typically used to circulate theindoorairtoequalizeatemperature unbalance due to a solar load or building equipment.
Do not use this appliance if any part has been under water. Immediately call a qualifi ed service technician to
SYSTEM | FAN | TEMPERATURE |
MODE | SWITCH | SENSOR |
Figure 1. Typical Thermostat
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