7 Installation
Installer reference guide
36
EPGA11~ EABH/9W
Daikin Altherma – Low temperature split
4P556069-1 – 2018.10
b
Communication cable (high voltage)
c
Cable for bottom plate heater (optional)
4
Inside the unit, route the wiring as follows:
b
f
a
e
e
d
c
e
e
e
a
Power supply cable
b
Communication cable
c
Cable for bottom plate heater (optional)
d
Ferrite core
e
Tie strap
f
Compressor
NOTICE
To guarantee electromagnetic compatibility:
▪ Make sure both power supply and communication
cables run parallel to one another. Use tie straps to
hold the cables together.
▪ Make sure the cables are located as far away from the
compressor as possible.
▪ The communication cable MUST pass through the
ferrite core.
5
Make sure that the cable does NOT come in contact with sharp
edges or hot gas piping.
6
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.
7.6.7
To connect the electrical wiring on the
indoor unit
1
Open the switch box so that you can access the back of the
switch box. See
"7.2.3 To open the indoor unit" on page 28
.
2
Route the wiring as follows:
▪ Enter the unit from the bottom.
▪ Route the wiring via the back of the switch box.
▪ Fix the cables with cable ties to the cable tie mountings at
the back of the switch box.
b
a
X2M
X1M
X5M
d
b+c
a
c
a, b, c
Field wiring (see table below)
d
Factory-mounted cable for power supply of backup heater
INFORMATION
When installing field supply or option cables, foresee
sufficient cable length. This will make it possible to open
the switch box and gain access to other components
during service.
Routing
Possible cables (depending on unit type
and installed options)
a
Low voltage
▪ Preferential power supply contact
▪ User interface (option)
▪ Power consumption digital inputs (field
supply)
▪ Outdoor ambient temperature sensor
(option)
▪ Indoor
ambient
temperature
sensor
(option)
▪ Electrical meters (field supply)
▪ Safety thermostat (field supply)
b
High voltage power
supply
▪ Interconnection cable
▪ Normal kWh rate power supply
▪ Preferential kWh rate power supply
c
High voltage control
signal
▪ Heat pump convector (option)
▪ Room thermostat (option)
▪ Shut-off valve (field supply)
▪ Domestic hot water pump (field supply)
▪ Alarm output
▪ Changeover to external heat source
control
▪ Space cool/heat operation control
d
High voltage power
supply (factory-
mounted cable)
▪ Power supply for backup heater
CAUTION
Do NOT push or place redundant cable length in the unit.
7.6.8
To connect the main power supply
1
Connect the main power supply.
In case of normal kWh rate power supply
Summary of Contents for Altherma EPGA011-016DV
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