8 Technical data
Installation manual
24
EWAQ+008BAVP
Packaged air-cooled water chillers and packaged air to water heat
pumps
4P478610-1 – 2017.02
Electrical connection diagram
X2M: 13-15
230 V
X8M: 3-4
230 V
X8M: 1-2
X2M: 7-8
X2M: 9-10
230 V
X2M: 5-6
X2M: 3-4
X2M: 1-2
X2M: 11-12
X2M: 1a-2a
2
2
X2M: 1-2-1a
A3P: C-com-H
230 V
X2M: 1-2-1a
X8M: 4-5
A7P: X1M: H-C-com
X2M: L-N
A3P: X1M: 1-3
R2T
X15M: 1-2
X15M: 3-4
X15M: 5-6-7
X2M: 5-6
X2M: 12-11
X2M: 13-14-15
A4P: X5A: 1-2-3
X1M: L-N-PE
A4P: X5A: 1-2-3
X8M: 6-7
X2M: 9-10
X2M: 20-21
X2M: 22-23
230V
X1M: L-N-PE
2x0.75
2x0.75
X8M: 10
230V
X5Y
X8M: 6-7-10
4D109132
2x0.75
230V
230V
X3M: 1-2
X5M: 3-4
X5M: 1-2
X5M: 5-6
Notes:
- In case of signal cable: keep minimum distance to power cables > 5 cm
- Available heaters: see combination table
signal
signal
signal
signal
2 core
2 core
2 core
2 core
External outdoor thermistor
Optional part
Control
Box
Valve Kit
BUH
Control
Box
Only for *WYQ*
Standard: 4 low voltage wires
Optional: 5 high voltage wires
Inside: 6 or 7 wires to BUH
Valve kit: 3 wires
Standard: 4 low voltage wires
Optional: 4 high voltage wires
2 low voltage wires
Only for EKRSCA1
signal
2 core
Optional part
communication
2 core
Standard part
Optional part
communication
2 core
Only for *KRUCB*
A5P: P1-P2 user interface
A5P: P1-P2 user interface
Power supply
3 core
control box power supply: 230 V + earth
signal
signal
signal
2 or 3 core
2 core
2 core
F1B: L1-L2-L3-N + earth
or L-N + earth
backup heater power supply (3/6/9 kW):
400 V or 230 V + earth
Valve kit
BUH option
signal
2 core
2 core
2 core
signal
signal
2 core
signal
2 core
2 core
Only for KRCS01-1
External indoor thermistor
Electricity pulse
meter input 2
Electricity pulse
meter input 1
Space cooling/heating
On/OFF output
Ext. heat source (eg boiler)
Alarm Output
communication
3 core
3 core
Power limitation
demand input 4
Power limitation
demand input 3
Power limitation
demand input 2
Power limitation
demand input 1
Field supply
Field supply
Optional part
Optional part
Only for *KRTETS
External sensor
(floor or ambient)
2 core
(3m included)
signal
signal
Only for *KRTR
(wireless room thermostat)
Only for *KRTW
(wired room thermostat)
5 core for C/H operation
4 core for C only operation
3 core for C/H operation
2 core for C only operation
External room thermostat
(main zone)
Optional part
Control box
Shut-OFF valve
Preferential kWh rate power supply contact
2 core
2 core
2 core
3 core
X3M: 5-6
X1M: L-N-earth
unit power supply: 230 V + earth
normal kWh rate power supply for unit: 230 V
Only for preferential kWh rate power supply installation
Field supply
Minichiller unit
Standard part
Power supply
Option box
Typical configuration
