Control Panel Operation Instructions
SYSTEM - The SYSTEM button allows you to sequentially select the modes of operation. To select, press once and let go.
AUTO MODE | Automatically changes between HEAT and COOL | |
| (HEAT and COOL ONLY Units) | |
COOL MODE | HEAT MODE | Not available on some models |
FAN ONLY MODE |
| |
| AUTO MODE COOL |
|
| - AUTO - | F |
|
| |
| AUTO FAN |
|
| SET POINT |
|
| COOL ONLY MODE | FRR204 |
|
| |
|
| F |
| AUTO FAN |
|
| SET POINT |
|
| HEAT MODE | FRR103 |
|
| |
|
| F |
| AUTO FAN |
|
| SET POINT |
|
| FAN ONLY MODE | FRR104 |
|
| |
FRR105
When in the SYSTEM 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 
button allows you to select between AUTO FAN and CONTINUOUS modes. To select, press once and let go.
F
AUTO FAN
SET POINT
FRR112
When in the AUTO FAN mode, the fan operates only 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)
F
AUTO FAN
SET POINT
FRR106
System has a demand for cooling. The fan is operating at a medium speed.
CONTINUOUS
F
CONTINUOUS
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 - Cooling only units have 4 fan speeds, except models SL28 and SL36. All Cool+Heat units only have 3 fans speeds.
FAN SPEED - The FAN button allows you to toggle between four speeds: LOW, MEDIUM, HIGH, MAX and AUTO speed operation. Press once and let go each time.
SPEED
4 Speed |
AUTO |
FRR095 |
During the (SYSTEM mode COOL or HEAT), the 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 lowest setting, and if the fan mode is on AUTO FAN, the fan will stop.
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