Checking and Starting Up the Unit MCAC-TSM-2008-02
74 Installation
6. Checking and Starting Up the Unit
6.1 Preparing for first start up
Restarting after shutting down for long periods
The chiller must be started up for the first time by the Technical Service. Before starting up the chillers, make
sure that:
- All safety conditions have been respected
- The chiller is adequately fixed to the surface it rests on
- Functional distances have been respected;
- Hydraulic connections have been carried out as indicated in the instruction manual
- The water circuit is filled and vented. When draining after heat pump operation, take care as the water
may be hot;
- The water circuit valves are open
- Electrical connections have been carried out correctly
- Voltage is within a tolerance of 10% of the rated voltage for the unit
- The unit is correctly earthed
- All electrical and hydraulic connections are tight and have been completed correctly.
Important
The unit must be started up for the first time with standard settings. Set point values may be modified only
after testing has been completed. Before starting up, power the unit for at least two hours by switching QF1
and QS1 to ON and setting the control panel “HSW7”to OFF to allow the oil in the compressor sump to heat
up.
6.2 Starting up for the first time (after two hours)
Before activating the chiller:
- Make sure the main remote switch QF1 is in the OFF position;
- Make sure the remote secondary switch SA2 is in the OFF or STANDBY position
- Make sure the remote keyboard A6 (if present) is set to OFF
To complete the electrical connections:
- Remove the inspection panel by unscrewing the five screws
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