7 Installation
Installer reference guide
29
EGSQH10S18AA9W
Daikin Altherma ground source heat pump
4P351748-1D – 2016.02
7.6.2
About electrical compliance
Equipment complying with EN/IEC 61000‑3‑12 (European/
International Technical Standard setting the limits for harmonic
currents produced by equipment connected to public low-voltage
systems with input current >16 A and ≤75 A per phase.).
7.6.3
Precautions when connecting the
electrical wiring
INFORMATION
Also read the precautions and requirements in the
following chapters:
▪ General safety precautions
▪ Preparation
DANGER: RISK OF ELECTROCUTION
INFORMATION
More information about the legend and the location of the
wiring diagram of the unit can be found in the "Technical
data" chapter.
WARNING
ALWAYS use multicore cable for power supply cables.
7.6.4
Guidelines when connecting the electrical
wiring
Keep the following in mind:
▪ If stranded conductor wires are being used, install a round crimp-
style terminal on the tip. 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
Tightening torques
Item
Tightening torque (N•m)
X1M
2.2~2.7
X2M
0.8~0.9
X5M
7.6.5
To connect the electrical wiring on the
indoor unit
INFORMATION
Foresee additional cable length of 35 cm for all wires which
should be connected to X2M and X5M on sheet metal
support above the hydro PCB. Additional wire length
should be tie wrapped at the back side of the unit. Reason
is to guarantee serviceability of, for example, the hydro
PCB.
1
To open the indoor unit, see
"7.2.2 To open the indoor unit" on
page 23
and
"7.2.3 To open the switch box cover of the indoor
unit" on page 24
.
2
Wiring should enter the unit from the top:
a
c
b
3
Routing of the wiring inside the unit should be as follows:
1×
1×
a
c
b
