7 Installation
Installer reference guide
41
EWAQ+005BAVP
Packaged air-cooled water chillers and packaged air to water heat
pumps
4P492900-1 – 2017.06
NO
X5M
X4M
X3M
M2S
2
1
INFORMATION
By default, the shut‑off valve is to be connected to the
outdoor unit. However, if control box EKCB07CAV3 is
present in the system, you can also connect it to the
control box. To do this, connect outdoor unit terminals
X3M/1+2 to control box terminals X8M/6+7, and then
connect the shut‑off valve to control box terminals
X8M/6+7.
X2M
X8M
6 7
X5M
X3M
M2S
1
2
7.8.8
To connect the electrical wiring on the
control box
1
Insert the wiring from the bottom of the control box.
2
Make sure the low voltage wiring is located on the right. Route it
through the intake hole and fasten it with cable ties.
a
b
c
a
Low voltage wiring
b
High voltage wiring
c
Main power supply
NOTICE
The distance between the high voltage and low voltage
cables should be at least 25 mm.
7.8.9
To connect the control box power supply
1
Connect the power supply cable to the control box.
1 2 3
1 2 3
X8M
X1M
1
GND
2
L
3
N
2
Fix the cable with cable ties to the cable tie mountings to
ensure strain relief and to make sure that it does NOT come in
contact with sharp edges.
CAUTION
Do NOT push or place redundant cable length in the unit.
7.8.10
To connect the interconnection cable
between control box and outdoor unit
1
Connect X2M/22 (control box) to X5M/4 (outdoor unit).
2
Connect X2M/23 (control box) to X5M/3 (outdoor unit).
X5M
22
23
3 4
X2M
3
Tie the cable with cable ties to the cable tie mountings.
7.8.11
To connect the electrical wiring on the
option box
1
Insert the wiring from the bottom of the option box.
2
Make sure the low voltage wiring is located on the right. Route it
through the intake hole and fasten it with cable ties:
