7 Installation
Installer reference guide
35
EBLQ+EDLQ011~0W1 + EK(2)CB07CAV3
Daikin Altherma low temperature monobloc
4P538847-1 – 2018.05
7.7.3
Guidelines when connecting the electrical
wiring
Keep the following in mind:
▪ If stranded conductor wires are used, install a round crimp-style
terminal on the end of the wire. Place the round crimp-style
terminal on the wire up to the covered part and fasten the terminal
with the appropriate tool.
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
O
Allowed
X
NOT allowed
Item
Tightening torque (N•m)
Outdoor unit
X3M
0.8~0.9
X4M
2.2~2.7
X5M
0.8~0.9
X7M
Control box / option box
X1M
2.2~2.7
X2M
0.8~0.9
X4M/X7M
1.3~1.6
X8M
0.8~0.9
7.7.4
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 28
.
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 at the back of the unit:
a
b
c
d
≥25 mm
a
Low voltage cable
b
High voltage cable
c
Power supply cable
d
Backup heater power supply cable
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
d
Backup heater power
supply
▪ Backup heater power supply
4
Inside the unit, route the wiring as follows:
b
a
V3
