Daikin EWAA Series, Installation Manual, Page: 14 / 40

6 Electrical installation
Installation manual
14
EWAA011~016DA + EWYA009~016DA
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P620240-1 – 2020.06
Item Description
Human Comfort
Interface See:
▪ Installation and operation manual of
the Human Comfort Interface
▪ Addendum book for optional
equipment
Wires: 2×(0.75~1.25 mm²)
Maximum length: 500 m
[2.9] Control
[1.6]
Room sensor offset
WLAN cartridge See:
▪ Installation manual of the WLAN
cartridge
▪ Installer reference guide
—
[D] Wireless gateway
Flow switch See installation manual of the flow
switch
Wires: 2×0.5 mm²
—
Location extra components
The following illustration shows the location of the extra components
that you need to install on the outdoor unit when using certain option
kits.
c b
a
d
a Flow switch (EKFLSW1)
b Demand PCB (A8P: EKRP1AHTA)
c Digital I/O PCB (A4P: EKRP1HBAA)
d Smart grid relay kit (EKRELSG)
6.3.1 To connect the electrical wiring to the
outdoor unit
1 Open the service cover. See "4.3.1 To open the outdoor
unit" [
4
9].
2 Insert the cables at the back of the unit, and route them through
the unit to the appropriate terminal blocks.
b
c
a
d
a High voltage options
b Low voltage options
c Power supply for backup heater (in case of unit with
integrated backup heater)
Wiring for backup heater kit (in case of external backup
heater kit)
d Unit power supply
3 Connect the wires to the appropriate terminals, and fix the
cables with cable ties.
6.3.2 To connect the main power supply
This topic describes 2 possible ways to connect the main power
supply:
▪ In case of normal kWh rate power supply
▪ In case of preferential kWh rate power supply
In case of normal kWh rate power supply
Normal kWh rate
power supply Wires: 1N+GND, OR 3N+GND
Maximum running current: Refer to name
plate on unit.
—
1 Open the service cover. See "4.3.1 To open the outdoor
unit" [ 4 9].
2 Connect as follows (1N~or 3N~ depending on model, see name
plate):
N L N PE
Q1DI
X1M.L
X1M.L1 X1M.L2 X1M.L3 X1M.N
X1M.N X1M.
X1M.
L3 L2 L1 N PE
Q1DI
1N~ 3N~ OR
1N~, 50 Hz,
220-240 V AC
3N~, 50 Hz,
380-415 V AC
X1M
OR
1N~ 3N~
L1 L2 L3 N L N
3 Fix the cables with cable ties to the cable tie mountings.