7 Installation
Installer reference guide
35
EPGA11~ EAVH/9W
Daikin Altherma – Low temperature split
4P556070-1 – 2019.02
Only for the backup heater of the indoor unit
See
"7.6.9 To connect the backup heater power supply" on
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
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 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
Tightening torques
Item
Tightening torque (N•m)
M4 (X1M)
1.2~1.5
M4 (earth)
7.6.5
Specifications of standard wiring
components
Component
EPGA11~16DAV3
Power supply
cable
MCA
(a)
30.7 A
Voltage
230 V
Phase
1~
Frequency
50 Hz
Wire sizes
Must comply with applicable
legislation
Interconnection cable
Minimum cable section of
1.5 mm² and applicable for 230 V
Recommended field fuse
(b)
32 A
Earth leakage circuit breaker
Must comply with applicable
legislation
(a)
MCA=Minimum circuit ampacity. Stated values are
maximum values (see electrical data of combination with
indoor units for exact values).
(b)
The minimum allowed field fuse is 20 A.
NOTICE
It is possible to install a field fuse with lower than
recommended rating over the heat pump. For this you
must modify field setting [2‑0E] according to the maximum
allowed current over the heat pump.
Note that field setting [2‑0E] overrules all power
consumption control settings. Power limiting the heat pump
will reduce performance.
7.6.6
To connect the electrical wiring on the
outdoor unit
1
Remove the switch box cover. See
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:
b
c
a
a
Power supply cable (high voltage)
b
Communication cable (high voltage)
c
Cable for bottom plate heater (optional)
4
Inside the unit, route the wiring as follows:
Summary of Contents for Altherma EAVX-D9WG
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