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EN/06.2017/G18D © STULZ GmbH – all rights reserved
cyberair 3PrO cw2 Original instructiOns
Power switch off
Power switch on
non-calibrated range
WArnInG
Fire hazard
Do not turn the adjustment screw beyond the end of the calibrated scale range, as it may result
in overheating and short-circuit at the consumer or in the destruction of the power switch.
• check the settings of the power switches according to electrical data sheet (part of the unit documents).
• switch on the control-circuit fuses and the power switch of the fan.
•
close all doors of the A/C unit.
• switch on the power supply for the A/C unit.
• switch on the A/C unit at the master switch.
The controller is now supplied with power, so you can use it for adjustments.
• make sure that the heat rejecting system (chiller) is operating.
6.2 Control of the electrical box
• make sure that the master switch is off and the unit is de-energized.
• open the electrical box door (most right door) using the key provided.
• check whether all power switches and control-circuit fuses in the electrical section of the unit are switched
off.
• retighten all screw connections in the electric cabinet.
• verify the smooth function of the contactors.
• fill the chilled water circuit by means of the filling connections (see refrigerant diagram, part of the unit
documents).
• bleed air from the chilled water circuit by means of the schrader valves for bleeding.
