Specifications

Test Operation SiBE28-805
74 Test Operation
Pay attention to the fan. It is dangerous to inspect the unit while the fan is running. Be sure to
turn off the main switch and to remove the fuses from the control circuit located in the outdoor
unit.
Note:
Play it safe!
For protection of the PC board, touch the switch box casing by hand in order to eliminate static
electricity from your body before performing service.
1.2.6.2 Checks before Initial Start-up
Note:
Remark that during the first running period of the unit, required power input may be higher than
stated on the nameplate of the unit. This phenomenon originates from the compressor that
needs elapse of a 50 hours run in period before reaching smooth operation and stable power
consumption.
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Make sure that the circuit breaker on the power supply panel of the installation is switched
off.
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Attach the power wire securely.
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Introducing power with a missing N-phase or with a mistaken N-phase will break the
equipment.
After the installation, check the following before switching on the circuit breaker:
1. The position of the switches that require an initial setting
Make sure that switches are set according to your application needs before turning the
power supply on.
2. Power supply wiring and transmission wiring
Use a designated power supply and transmission wiring and make sure that it has been
carried out according to the instructions described in this manual, according to the wiring
diagrams and according to local and national regulations.
3. Pipe sizes and pipe insulation
Make sure that correct pipe sizes are installed and that the insulation work is properly
executed.
4. Air tight test and vacuum drying
Make sure the air tight test and vacuum drying were completed.
5. Additional refrigerant charge
The amount of refrigerant to be added to the unit should be written on the included "Added
Refrigerant" plate and attached to the rear side of the front cover.
6. Insulation test of the main power circuit
Using a megatester for 500 V, check that the insulation resistance of 2 M
Ω
. or more is
attained by applying a voltage of 500 V DC between power terminals and earth. Never use
the megatester for the transmission wiring.
7. Installation date and field setting
Be sure to keep record of the installation date on the sticker on the rear of the upper front
panel according to EN60335-2-40. and keep record of the contents of the field setting.
1.2.6.3 Field Setting
If required, carry out field settings according to the following instructions. Refer to the service
manual for more details.
Opening the switch box and handling the switches
When carrying out field settings, remove the inspection cover (1).
Operate the switches with an insulated stick (such as a ball-point
pen) to avoid touching live parts.
Make sure to re-attach the inspection cover (1) into the switch box
cover (2) after the job is finished.
2
1