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In case of preferential kWh rate power supply
A2P
X1A
X5M
X3M
b
1 2
1
GND
2
L
3
N
a
Interconnection cable (=main power supply)
b
Normal kWh rate power supply
c
Preferential power supply contact (on the control box)
INFORMATION
For the exact position of connectors X6Y, X6YA, and X6YB
in the switch box, see the service manual.
INFORMATION
In case of preferential kWh rate power supply, the
necessity of a separate normal kWh rate power supply to
the hydro part of the outdoor unit X3M/5+6 depends on the
type of preferential kWh rate power supply.
A separate connection to the hydro part of the outdoor unit
is required:
▪ if preferential kWh rate power supply is interrupted
when active, OR
▪ if no power consumption by the hydro part of the
outdoor unit is allowed at the preferential kWh rate
power supply when active.
7.8.6
To connect the user interface
Connection to outdoor unit
INFORMATION
▪ If control box EKCB07CAV3 is NOT part of the system,
connect the user interface directly to the outdoor unit
according to the instructions below.
▪ If control box EKCB07CAV3 is part of the system,
connect the user interface to the control box. For
instructions, see "Connection to control box" below.
EWAQ+EWYQ004+005BAVP
Packaged air-cooled water chillers and packaged air to water heat
pumps
4P492900-1 – 2017.06
X2M
X6Y
X6YB
10
X6YA
9
X19A
1
2
3
X4M
X8M
a
c
1 2 3
S1S
#
1
Connect the user interface cable to the outdoor unit.
A5P
a
a Main user interface
b Optional user interface
2
Insert a screwdriver into the slots underneath the user
interface and carefully separate the faceplate from the
wallplate.
The PCB is mounted in the faceplate of the user interface.
Be careful NOT to damage it.
3
Fix the wallplate of the user interface to the wall.
4
Connect as shown in 4A, 4B, 4C or 4D.
5
Reinstall the faceplate onto the wallplate.
Be careful NOT to pinch the wiring when attaching the
frontplate to the unit.
(a)
The main user interface is required for operation. It is
delivered with the unit as accessory.
Connection to control box
▪ If you use 1 user interface, you can connect it onto control box
EKCB07CAV3 (for control close to the control box), or in the room
(where used as room thermostat).
▪ If you use 2 user interfaces, you can connect 1 user interface onto
control box EKCB07CAV3 (for control close to the control box) + 1
user interface in the room (where used as room thermostat).
7 Installation
Action
1 2
X5M
A5P
b
(a)
Installer reference guide
39
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