Lennox CLIMATIC series User Manual page 18

COMPONENTS
The outside air temperature can also be used to disable automatically the compressor. There are up to 2 thresholds to unload 50%
or 100% of compressors on the unit.
Compressor enable
Compressor enable
The compressor is subject to various operating time in order to prevent from damage operating.
• The minimum OFF time of the compressor is fi xed to 30 s,
• The minimum between 2 starts of the same compressor is fi xed to 6 minutes.
Settings
The different settings to confi gure the compressors are available in the menu:
(2471): setpoint for activation operation of all compressor, cooling/heating mode
(2472): enable circuit 1, separate comp.1 or/and comp.2
(2473): enable circuit 2, separate comp.1 or/and comp.2
(2481): setpoint for activation operation in cooling mode
(2591): setpoint for activation operation in heating mode
(2482): outside temperature threshold, unload 50% of compressors
(2483): outside temperature threshold, unload 100% of compressors
(2492): outside temperature threshold, unload 50% of compressors
(2493): outside temperature threshold, unload 100% of compressors
• 16 •
12.0°C
(2483)
-20.0°C
(2493)
Outside air temp. (°C)
20.0°C
(2482)
Outside air temp. (°C)
-10.0°C
(2492)
Compressor demand
Compressor output
Compressor demand
Compressor output
CLIMATIC RT_UNITARY-IOM-1508-E