Control Panel Operation Instructions
SYSTEM - The SYSTEM button allows you to sequentially select three modes of operation:
COOL 
HEAT 
Not available on some models
FAN ONLY
COOL MODE
AUTO FAN 74F
SET POINT
FRR103
HEAT MODE
AUTO FAN 68F
SET POINT
FRR104
FAN ONLY MODE
FRR105
When in the COOL 
or HEAT 
or FAN ONLY 
mode, you can also
select FAN MODE, FAN SPEED, TIMER SCHEDULE, 
and 
. The SYSTEM MODE does not change.
FAN MODE – The | MODE | button allows you to select between AUTO FAN and | ||
| FAN |
|
|
|
CONTINUOUS modes.
AUTO FAN (No Cooling Demand)
AUTO FAN 79F
SET POINT
FRR112
When in the AUTO FAN mode, the fan only 
operates when the system has a demand to cool or heat the room. Note: the fan is off (no fan speed icon), indicating no command for cooling or heating.
AUTO FAN (Cooling Demand)
AUTO FAN 74F
SET POINT
FRR106
System has a demand for cooling. The fan is operating at a medium speed.
CONTINUOUS
CONTINUOUS 79F
SET POINT
FRR113
In the CONTINUOUS fan mode, the fan operates all the time. The system periodically cools or heats the fan's airflow but the flow of air does not stop.
FAN SPEED - The SPEEDFAN button allows you to toggle between four modes of operation: LOW, MEDIUM, HIGH and AUTO.
3 Speed |
AUTO |
FRR095
When fan speed AUTO mode (SYSTEM mode COOL or HEAT) is selected, fan speed automatically varies depending on the difference between the unit's set point on the control panel and the actual room temperature. Let me explain. Say for example, you’re working in your garage and you open the big door for several minutes. The system will sense a wide difference between the set point and the actual room temperature. When this occurs, the system fan speed increases to HIGH for a period of time. The fan speed decreases, in step, as the temperature difference decreases. When the room temperature matches the system's set point, fan speed returns to the original setting.
10
