Start-Up And Configuration; Checks Before Initial Start Up; Field Settings; How To Operate The Push Buttons - Daikin KHRQ23M29H Installationsanleitung

14. S -
TART UP AND CONFIGURATION
INFORMATION
It is important that all information in this chapter is read
sequentially by the installer and that the system is
configured as applicable.
DANGER: ELECTRICAL SHOCK
See "2. General Safety precautions" on page 2.

14.1. Checks before initial start up

After the installation of the unit, first check the following items. Once
all below checks are fulfilled, the unit must be closed, only then can
the unit be powered up.
1 Installation
Check that the unit is properly installed, to avoid abnormal
noises and vibrations when starting up the unit.
2 Field wiring
Be sure that the field wiring has been carried out according to
the instructions described in the chapter "12. Electrical wiring
work" on page 19, according to the wiring diagrams and
according to the applicable legislation.
3 Power supply voltage
Check the power supply voltage on the local supply panel. The
voltage must correspond to the voltage on the identification label
of the unit.
4 Earth wiring
Be sure that the earth wires have been connected properly and
that the earth terminals are tightened.
5 Insulation test of the main power circuit
Using a mega tester for 500 V, check that the insulation
resistance of 2 MΩ or more is attained by applying a voltage of
500 V DC between power terminals and earth. Never use the
mega tester for the transmission wiring.
6 Fuses, circuit breakers, or protection devices
Check that the fuses, circuit breakers, or the locally installed
protection devices are of the size and type specified in the
chapter "12. Electrical wiring work" on page 19. Be sure that
neither a fuse nor a protection device has been bypassed.
7 Internal wiring
Visually check the switch box and the inside of the unit on loose
connections or damaged electrical components.
8 Pipe size and pipe insulation
Be sure that correct pipe sizes are installed and that the
insulation work is properly executed.
9 Stop valves
Be sure that the stop valves are open on both liquid, suction,
and HP/LP side.
10 Damaged equipment
Check the inside of the unit on damaged components or
squeezed pipes.
11 Refrigerant leak
Check the inside of the unit on refrigerant leakage. If there is a
refrigerant leak, try to repair the leak. If the repair is
unsuccessfull, call your local dealer. Do not touch any refrigerant
which has leaked out of refrigerant piping connections. This may
result in frostbite.
12 Oil leak
Check the compressor for oil leakage. If there is an oil leak, try
to repair the leak. If the repairing is unsuccessfull, call your local
dealer.
Installation manual
25
13 Air inlet/outlet
Check that the air inlet and outlet of the unit is not obstructed by
paper sheets, cardboard, or any other material.
14 Additional refrigerant charge
The amount of refrigerant to be added to the unit shall be written
on the included "Added refrigerant" plate and attached to the
rear side of the front cover.

14.2. Field settings

The operation of the outdoor unit can further be defined by changing
some settings.
This can be done through push buttons on the outdoor unit PCB as
described below.

How to operate the push buttons

1 Open the front plate of the outdoor unit and access the switch
box on the right side.
6x
1 Push buttons
When carrying out field settings,
remove the inspection cover (1).
Operate the push buttons 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.
WARNING
Make sure that all outside panels, except for the panel on
the electric component box (1), are closed while working.
Close the lid of the electric component box firmly before
turning on the power.
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REYAQ10~16P7Y1B
VRVIII system outdoor unit
4PW62582-1A – 08.2011