Before Starting; Table 11-Pre-Commissioning Checklist - Daikin EWLQ025KCW1N Installation, Operation And Maintenance Manual

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BEFORE STARTING

The unit should not be started, not even for a very short period, before the following pre-
commissioning checklist is filled out completely.
Tick/when
checked
NOTE:
Try to reduce the drilling in the unit to a minimum. If drilling is not preventable, remove the iron filling thoroughly
1.
in order to prevent surface rust!
It is necessary to read the operation manual delivered with the unit before operating the unit. It will contribute to
2.
understand the operation of the unit and its electronic controller.
Verify on the wiring diagram all electrical mentioned above, in order to understand the operation of the unit more
3.
deeply.
Close all switch box doors after the installation of the unit.
4.
I do confirm having executed and checked all the above mentioned above.
Date Signature
Keep for future reference.

Table 11-Pre-commissioning checklist

Standard stops to go through before starting the unit
1 Check for external damage.
2 Install main fuses, earth leak detector and main switch.
Recommended fuses: aM according to IEC standard 269-2.
Refer to the wiring diagram for size.
Supply the main voltage and check if it is within the
3
allowable ±10% limits of the nameplate rating.
The electrical main power supply must be arranged so, that
it can be switched on or off independently of the electrical
supply to other items of the plant and equipment in general.
Refer to the wiring diagram, terminals N,PE, L1, L2 and L3.
4 Supply water to the evaporator and verify if waterflow is
within the limits as given in the table under "Water charge,
flow and quality".
5 The piping must be completely purged. See also chapter
"Checking the water circuit".
6 Connect the flow switch and pump-contacts, so that the unit
can only come in operation when the waterpumps are running
and the waterflow is sufficient. Make sure a water filter is
installed before the water inlet of the unit.
7 Connect the field wiring for pumps start-stop.
8 Connect the field wiring for remote control.
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