About Electrical Compliance; Guidelines When Connecting The Electrical Wiring; Connections To The Indoor Unit; Overview Of Electrical Connections For External And Internal Actuators - Daikin Altherma 3 H F Installation Manual

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WARNING
ALWAYS use multicore cable for power supply cables.
6.1

About electrical compliance

Only for the backup heater of the indoor unit
See
"6.3.4 To connect the backup heater power
6.2
Guidelines when connecting the
electrical wiring
Tightening torques
Indoor unit:
Item
X1M
X2M
X5M
X6M
X10M
M4 (earth)
6.3

Connections to the indoor unit

6.3.1
Overview of electrical connections for
external and internal actuators
Item
Description
Outdoor unit and indoor unit power supply
1
Power supply for
outdoor unit
2
Power supply and
interconnection cable to
indoor unit
3
Power supply for
backup heater
4
Preferential kWh rate
power supply (voltage
free contact)
5
Normal kWh rate power
supply
Optional equipment
6
User interface used as
room thermostat
7
Room thermostat
8
Outdoor ambient
temperature sensor
9
Indoor ambient
temperature sensor
10
Heat pump convector
Field supplied components
11
Shut-off valve
12
Electricity meter
13
Domestic hot water
pump
14
Alarm output
15
Changeover to external
heat source control
EAVZ16S18+23DA6V(7)+9W
Daikin Altherma 3 H F
4P556073-1A – 2021.09
supply" [ 4  13].
Tightening torque (N•m)
2.45 ±10%
0.88 ±10%
0.88 ±10%
2.45 ±10%
0.88 ±10%
1.47 ±10%
Wires
Maximum
running
current
(a)
2+GND
(f)
3
See table below. —
(d)
2
2
6.3 A
(e)
2
(b)
3 or 4
100 mA
(b)
2
(b)
2
(b)
2
100 mA
(b)
2
100 mA
(b)
2 (per meter)
(b)
2
(b)
2
(b)
2
Item
Description
16
Space heating
operation control
17
Power consumption
digital inputs
18
Safety thermostat for
the main zone
19
Safety thermostat for
the additional zone
(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
Power supply
type
*6V
1N~ 230 V (6V)
3~ 230 V (6T1)
*9W
3N~ 400 V
6.3.2
To connect the electrical wiring to the
indoor unit
1 To open the indoor unit, see
unit" [ 4  5].
2 The wiring enters the unit from the top:
d
b+c
a
a, b, c
Field wiring (see table below)
d
Factory-mounted cable for power supply of backup heater
3 Routing of the wiring inside the unit should be as follows. Fix
the cable to the cable rail using cable ties:
6 Electrical installation
Wires
Maximum
running
current
(b)
2
(b)
2 (per input
signal)
(b)
2
(d)
2
Required number of
conductors
2+GND
3+GND
4+GND
"4.2.1  To open the indoor
b+c
a
Installation manual
11
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