Carrier 42EL Aqualia Installation, Operation And Maintenance Instructions page 9

6.2 - Summary cooling and heating mode tables in Occupied mode
Water temperature
Temperature below 15°C* Temperature from15 to 35°C
Air °C Valve Fan
ON
ON
ON
Water temperature
Temperature below 15°C*
Air °C Valve Heater
ON
ON
ON
ON
ON
ON
Water temperature - hot water circuit
Temperature below 35°C*
Air °C Heating valve Cooling valve
ON
ON
ON
Legend
Heater Electric heater
* Cooling demand
The valve opens if the water temperature falls below 15°C. The valve
closes if the water temperature rises above 20°C.
** Heating demand
The valve opens if the water temperature rises above 35°C. The valve
closes if the water temperature falls below 30°C.
Setpoint
Minimum fan speed
Medium fan speed
Maximum fan speed
Two-pipe changeover configuration
Valve Fan
Two-pipe changeover plus two wires configuration
Temperature from15 to 35°C
Fan Valve Heater
ON
ON
ON
Four-pipe configuration
Fan
ON
ON
ON
Temperature above 35°C**
Valve Fan
ON
ON
ON
Temperature from 35 to 43°C**
Fan Valve Heater
ON ON
ON ON
ON ON
Temperature above 35°C
Heating valve
ON
ON
ON
Air temperature decrease
Air temperature increase
Note:
If the CRC temperature sensor is selected in the Heating Satsfied mode, the fan
operates to protect against cold draughts (see chapter "Cold draught protection").
Temperature above 43°C
Fan Valve Heater
ON
ON
ON
Cooling valve
ON
ON
ON
Fan
Fan
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