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Use an external control cable to set the chiller's release (see Chapter 8.3 External release); this
cable is laid parallel with the supply cable and is wired at the corresponding terminals in the
control cabinet (Refer to the circuit diagram included with the device).
If the electrical installation has been completed the phase sequence must be tested. This is done
by checking the rotational direction of the pump. This has a rotational direction arrow on it. If the
rotational direction does not match the arrow, the phase sequence can be corrected by swapping
two phases at the main supply.
7. Commissioning
Before commissioning the chiller the checklist must be used to check whether all the necessary
work in Chapter 6 Installation has been carried out properly.
The chiller must be installed for at least 12 hours at >+5 °C, so that the compressor oil can heat
up and the refrigerant can be liberated from the oil.
If your machine is equipped with oil sump heating and the machine has been completely
installed, it is permissible to switch on the machine at the main switch and to allow the
compressor to be preheated for at least 3 hours without enabling the cooling.
7.1. Installation checklist
▪ The device has been set up for at least 12 hours at >+5°C?
▪ Unit installed horizontal and stable?
▪ Any vibration damping and floor anchors installed?
▪ Spaces / clearances around the unit are adequate according to the requirements?
▪ Air intake side free from packaging materials, etc. ?
▪ Hydraulic connection OK?
▪ Cold water circuit filled in accordance with the specifications? Water quality OK?
▪ Whole system flushed? Dirt trap cleaned?
▪ Cross-sections adequately dimensioned?
▪ Electrical connection OK? Electrical power is available?
▪ External pumps OK? Rotational direction?
▪ Unit cover closed?
▪ Overall system OK and ready for commissioning/startup?
▪ Compressor "preheated" ?
▪ External enable OK?
After checking the above list you can continue with Chapter 8 Operation.
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