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4 Installation
Installation manual
6
EAV23DA6V
Daikin Altherma 3 H F
4P606486-1 – 2019.12
3.3
Preparing electrical wiring
3.3.1
Overview of electrical connections for
external and internal actuators
Item
Description
Wires
Maximum
running
current
Outdoor unit and indoor unit power supply
1
Power supply for
outdoor unit
2+GND
(a)
2
Power supply and
interconnection cable to
indoor unit
3
(f)
3
Power supply for
backup heater
See table below. —
4
Preferential kWh rate
power supply (voltage
free contact)
2
(d)
5
Normal kWh rate power
supply
2
6.3 A
Optional equipment
6
User interface used as
room thermostat
2
(e)
7
Room thermostat
3 or 4
100 mA
(b)
8
Outdoor ambient
temperature sensor
2
(b)
9
Indoor ambient
temperature sensor
2
(b)
10
Heat pump convector
2
100 mA
(b)
Field supplied components
11
Shut-off valve
2
100 mA
(b)
12
Electricity meter
2 (per meter)
(b)
13
Domestic hot water
pump
2
(b)
14
Alarm output
2
(b)
15
Changeover to external
heat source control
2
(b)
16
Space cool/heat
operation control
2
(b)
17
Power consumption
digital inputs
2 (per input
signal)
(b)
18
Safety thermostat
2
(d)
(a)
Refer to name plate on outdoor unit.
(b)
Minimum cable section 0.75 mm².
(c)
Cable section 2.5 mm².
(d)
Cable section 0.75 mm² till 1.25 mm²; maximum length:
50 m. Voltage-free contact shall ensure the minimum
applicable load of 15 V DC, 10 mA.
(e)
Cable section 0.75 mm² till 1.25 mm²; maximum length:
500 m.
(f)
Cable section 1.5 mm².
NOTICE
More technical specifications of the different connections
are indicated on the inside of the indoor unit.
Backup heater
type
Power supply
Required number of
conductors
*6V
1N~ 230 V (6V)
2+GND
3~ 230 V (6T1)
3+GND
4
Installation
4.1
Opening the units
4.1.1
To open the indoor unit
Overview
1
2
4
3 5
a
Top panel
b
User interface panel
c
Switch box cover
d
Front panel
e
High voltage switch box cover
Open
1
Remove the top panel.
5×
T25
2
Remove the user interface panel. Open the hinges at the top
and slide the top panel upwards.
NOTICE
If you remove the user interface panel, also disconnect the
cables from the back of the user interface panel to prevent
damage.
2
1
1
3
3
Remove the switch box cover.