Lennox CLIMATIC series User Manual page 9

AIR MANAGEMENT
2. Dynamic cooling set point
The CLIMATIC determines the appropriate air set point according to the outside temperature in order to optimise the energy consumption.
This function acts as a proportional shift of the cooling set point.
The dynamic set point starts to increase the cooling threshold when the outside temperature is over the cooling set point plus the
dynamic set point.
Example:
The cooling threshold has been set to 22.0°C and the dynamic set point has been set to 6K.
The cooling threshold will start to drift when the outside air temperature will be ≥ 28.0°C (22.0+6.0) and the new threshold will follow
the outside temperature evolution keeping a 6.0K difference.
So when the outside air temperature will reach 34.0°C, the new threshold will be 28.0°C.
3. Set point offset according to outside temperature
CLIMATIC may offset the cooling and heating set points and so the dead zone according to the outside air temperature.
Cooling set point (°C)
22°c
(2242)
19°c
(2243)
Heating set point (°C)
In the example above, setpoints (2245) and (2247) are set to -5k and +5k, from factory setting the are at 0k.
CLIMATIC RT_UNITARY-IOM-1508-E
Cooling set point (°C)
(2241)
(2242)
(2242)
- 5°k
(2245)
17°c
14°c
0°c
(2244)
(2241)
(2241)
Outside air temperature (°C)
27°c
24°c
+ 5°k
(2247)
30°c
(2246)
Outdoor air temp °C
• 7 •