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5.8 Functions
5-8-1 Automatic restart
In the event of a power cut, the unit automatically resumes the mode it was in after a period of 3 minutes.
5-8-2 Short-cycle protection
The unit is authorised to start back up if the compressor is turned off for at least 3 minutes.
5-8-3 Automated self-regulating control
This function adjusts the compressor running time or the stage differential to best adapt the operation of the unit to the type of
installation.
5-8-4 Low-noise operation
If you find that unit is too noisy, adjust the rotation speed of the fans. To do so, and depending on the operating mode, change
setting P5.
Caution:
under certain temperature conditions, this operating mode may lower the performance of your unit.
5.9 Options
5-9-1 Swimming pool control
This option allows you to heat your swimming pool.
Kit contents:
- Pool kit installation instructions (with adjustment values for settings and an electrical wiring diagram).
- Three-way valve
- 10 k
W
sensor
- A table listing the recommended types of exchanger to install (exchanger for the customer’s account).
5-9-2 Humidity sensor
This humidity sensor allows you to:
•
limit the risks of condensation forming on under-floor cooling systems
•
lower the water setpoint value even further.
Kit contents:
- Specific installation instructions (with adjustment values for settings).
- Humidity sensor.
5-9-3 Domestic hot water heating
This option allows you to produce domestic hot water with a hot-water tank with coil.
Kit contents:
- Specific installation instructions (with adjustment values for settings)
- 300 litre hot-water tank with coil and 3 kW auxiliary
- Three-way valve
5-9-4 Heat trace cable
Connect your heat trace cable (not supplied) to the special output on the Microconnect control board (see Section 5.6) - termi-
nals 1 and 2 on terminal block J15. Once the outdoor temperature drops below P93, the heat trace cable will be controlled based
on the water return and outdoor temperatures.
An auxiliary board must be wired for the options described below.
An auxiliary board is not needed for the following option.
Caution:
When operating the unit in cooling mode while the outdoor temperature is less than P93, the heat trace cable may
warm the water when it switches on. The heat gain may be significant with a long heat trace cable.
