Changeover Heating/Cooling Mode - Lennox CLIMATIC 60 User Manual

COMPONENTS

CHANGEOVER HEATING/COOLING MODE

Function
The CLIMATIC™ 60 controls the changeover mode (for reversible units only) to specify the appropriate demand on heat or chilled
water production.
Description
The changeover can also be pre-specifi ed according to the scheduling and can take different mode for each schedule mode (A, B,
C, D, and BMS).
12h/24h
12h/24h
D Mode
C Mode
Heat
Auto
C Mode
A Mode
9h 3h
21h Cool 15h
Dead zone
B Mode
D Mode
Heat
B Mode
Auto
Cool
6h
18h
The changeover mode can be set by different solutions:
Automatically:
The CLIMATIC™ 60 determines the appropriate production of water according to the outside temperature and moves automatically
the unit from cooling to heating mode and heating to cooling mode.
Changeover mode
Outdoor temperature (°C)
If the outside temperature is below the setting value (2225) or (3225), the unit will operate as a heat pump.
If the outside temperature is over the setting value (2226) or (3226), the unit will operate as a chiller.
Manually:
The changeover mode is forced for each schedule mode. The various modes available are "Cool" mode, "Heat" mode or "Dead zone".
In this case the outside temperature has not effect on the changeover mode.
Remotely:
The changeover mode is set according to a remote dry contact connect on a free custom digital input. In this case the unit swaps in
cooling or heating mode according to the status of the digital input. Please refer to the paragraph "Free Input / Output" for more details.
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CL60-AC CHILLER-IOM-1011-E