4 Installation
Installation manual
10
EWAQ+008BAVP
Packaged air-cooled water chillers and packaged air to water heat
pumps
4P478610-1 – 2017.02
Routing
Possible cables (depends on the installed options)
a
Low voltage
▪ User interface
▪ Interconnection cable to control box EKCB07CAV3
▪ Remote outdoor sensor (option)
b
High voltage
▪ Normal kWh rate power supply
▪ Preferential kWh rate power supply
▪ Shut-off valve (field supply)
▪ Space heat/cool operation control
c
Main power supply
▪ Main power supply
A protection sleeve for the conduits (PG insertions) can be inserted
at the knockout holes.
When you do not use a protection sleeve, protect the wires with vinyl
tubes to prevent the edge of the knockout hole from cutting the
wires.
a b c
d
e
A B
A
Inside of the outdoor unit
B
Outside of the outdoor unit
a
Wire
b
Bush
c
Nut
d
Frame
e
Hose
3
Inside the unit, route the wiring as follows:
a
c
b
c
Power supply cable
a
Low voltage wiring
b
High voltage wiring
4
Make sure that the cable does NOT come in contact with sharp
edges.
5
Install the switch box cover.
INFORMATION
When installing field supply or option cables, foresee
sufficient cable length. This will make it possible to remove/
reposition the switch box and gain access to other
components during service.
CAUTION
Do NOT push or place redundant cable length in the unit.
4.4.2
To connect the main power supply
1
Connect the main power supply as follows:
X1M
1 2 3 L N
b
c
a
a
Cable tie
b
Interconnection cable to switch box
c
Power supply cable (including earth)
4.4.3
To connect the user interface
INFORMATION
▪ If control box EKCB07CAV3 is NOT part of the system,
connect the user interface directly to the outdoor unit.
▪ If control box EKCB07CAV3 is part of the system, you
can also connect the user interface to the control box.
To do this, connect the user interface to control box
terminals X2M/20+21, and then connect the control box
to the outdoor unit by connecting X2M/20+21 to
outdoor unit terminals X5M/1+2.
INFORMATION
For details on how to connect the user interface to the
control box, refer to the installer reference guide or the
installation manual of the control box.