7 Installation
Installer reference guide
40
EKCB
EK2CB EKMBU EKMBUHCA9W1
Daikin Altherma low temperature monobloc
4P405544-1 – 2015.03
b
a
a
Stranded conductor wire
b
Round crimp-style terminal
▪ Use the following methods for installing wires:
Wire type
Installation method
Single core wire
c b
c
a
a
A
AA´
A´
a
Curled single core wire
b
Screw
c
Flat washer
Stranded conductor
wire with round
crimp-style terminal
c b
b
a
c
a
B
B
a
Terminal
b
Screw
c
Flat washer
NOTICE
Precautions when laying power wiring:
▪ Do not connect wiring of different thicknesses to the
power terminal block (slack in the power wiring may
cause abnormal heat).
▪ When connecting wiring which is the same thickness,
do as shown in the figure below.
▪ For wiring, use the designated power wire and connect
firmly, then secure to prevent outside pressure being
exerted on the terminal board.
▪ Use an appropriate screwdriver for tightening the
terminal screws. A screwdriver with a small head will
damage the head and make proper tightening
impossible.
▪ Over-tightening the terminal screws may break them.
Tightening torques
Item
Tightening torque (N•m)
M4 (X1M)
1.2~1.5
M4 (earth)
Item
Tightening torque (N•m)
M4 (X4M/X1M)
1.2~1.5
M4 (earth)
7.8.5
To connect the electrical wiring on the
outdoor unit
1
Remove the switch box cover. See
"7.2.2 To open the outdoor
unit" on page 31
.
2
Strip insulation (20 mm) from the wires.
a
b
a
Strip wire end to this point
b
Excessive strip length may cause electrical shock or
leakage.
3
Insert the wiring from the back of the unit:
a
b
c
≥25 mm
a
Low voltage
b
High voltage
c
Main power supply
NOTICE
The distance between the high voltage and low voltage
cables should be at least 25 mm.
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
▪ Heat pump convector (option)
▪ Shut-off valve (field supply)
▪ Domestic hot water pump (field supply)
▪ Space heat/cool operation control
c
Main power supply
▪ Main power supply
Summary of Contents for EK2CB07CAV3
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