I Advanced Operating Principles - Zodiac Z950 Instructions For Installation And Use Manual

• If F24 = 1 (only one compressor), the system 2 inputs and outputs are not used and no value is displayed.

5.4 I Advanced operating principles

5.4.1 Operating principles of modes
The appliance has 4 operating modes: Heating, Cooling, Heating/Cooling. The user interface can be used to switch
between these modes (see § ""3.2 I User interface presentation") or by modifying the value of the advanced F29
parameter (see § "5.3 I Advanced setting parameters (accessible by a qualified technician)").
5.4.1.1 Heating mode
In Heating mode, the appliance heats the water when the sensor temperature is lower than the setpoint temperature
reduced by the temperature differential. The appliance stops heating the water when the temperature is higher than the
setpoint temperature increased by the temperature differential (see following sequences.)
5.4.1.2 Cooling mode
In Cooling mode, the appliance cools the water when the sensor temperature is higher than the setpoint temperature
increased by the temperature differential (parameter F15). The appliance stops cooling the water when the temperature
is lower than the setpoint temperature reduced by the temperature differential (see following sequences.)
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