7 Installation
Installer reference guide
42
EWAQ+005BAVP
Packaged air-cooled water chillers and packaged air to water heat
pumps
4P492900-1 – 2017.06
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.
7.8.12
To connect the option box power supply
1
Connect option box terminal X1M to control box terminal X1M.
X2M
X8M
A4P
X2M
X8M
X1M
A4P
3
2
1
X1M
3
2
1
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.
7.8.13
To connect the interconnection cable
between option box and control box
1
Connect the connectors from the accessory bag to X5A on A1P
of both the control box and the option box PCB.
2
Connect the connectors by way of a field-supplied cable.
X5A
A4P
X5A
A4P
a
b
a
a
Connectors (accessory)
b
Interconnection cable (field supply)
7.8.14
To connect the electrical meters
INFORMATION
▪ Requires option box EK2CB07CAV3.
▪ To be connected to option box EK2CB07CAV3.
INFORMATION
In case of an electrical meter with transistor output, check
the polarity. The positive polarity MUST be connected to
X2M/7 and X2M/9; the negative polarity to X2M/8 and
X2M/10.
1
Connect the electrical meters cable to the appropriate terminals
as shown in the illustration below.
X2M
X8M
X1M
A4P
7
8
9
10
S5P S6P
2
Fix the cable with cable ties to the cable tie mountings.
7.8.15
To connect the power consumption digital
inputs
INFORMATION
▪ Requires option box EK2CB07CAV3.
▪ To be connected to option box EK2CB07CAV3.
1
Connect the power consumption digital inputs cable to the
appropriate terminals as shown in the illustration below.