Field Wiring; Point For Attention Regarding Quality Of The Public Electric Power Supply; Table 7-Zmax (Ω) - Daikin EWLQ025KCW1N Installation, Operation And Maintenance Manual

11

FIELD WIRING

All field wiring and components must be installed by a licensed electrician and must
comply with relevant European and national regulations.
The field wiring must be carried out in accordance with the wiring diagram supplied
with the unit and the instructions given below.
Be sure to use a dedicated power circuit. Never use a power supply shared by another
appliance.
During the removal of the control cabinet door, disconnect the display cable before removing the panel
completely. the display cable can be disconnected without the need to unlock any latch.
Power circuit and cable requirements
1. The electrical power supply to the unit 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.
2. A power circuit must be provided for connection of the unit. This circuit must be protected with the required safety devices,
i.e., a circuit breaker, a slow blow fuse on each phase and an earth leak detector. Recommended fuses are mentioned on
the wiring diagram supplied with the unit.
Switch off the main isolator switch before making any connections (switch off the circuit breaker, remove or switch off the fuses).
Connection of the water-cooled water chiller power supply
1. Install cable gland to proper tight main power supply cable
Using the appropriate cable, connect the power circuit to the N, L1, L2 and L3 terminals of the unit. (cable
2.
section 2.5~16mm2).
3. Connect the earth conductor (yellow/green) to the earthing terminal PE.
11.1

Point for attention regarding quality of the public electric power supply

This equipment complies with EN/IEC 61000-3-11(1
at the interface point between the user's supply and the public system. It is the responsibility of the installer or user of the equipment to
ensure, by consultation with the distribution network operator, if necessary, that the equipment is connected only to a supply with a
system impedance Zsys less than or equal to Zmax .
Complying with EN/IEC 61000-3-12(2)
provided that the system impedance Zsys is less than or equal to Zmax
)
Table 7-Zmax (Ω)
Zmax (Ω)
EWLQ014 0.28
EWLQ025 0.23
EWLQ033 0.21
EWLQ033 0.22
EWLQ064 0.20
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