Overview Of Electrical Connections For External And Internal Actuators - Daikin EBLQ05+07CAV3 Installer's Reference Manual

6 Preparation
7 Normal kWh rate power supply (to power the hydro part of
the outdoor unit in the event of a power supply interruption
of the preferential kWh rate power supply)
6.4.3 Overview of electrical connections for
external and internal actuators
The following illustration shows the required field wiring.
INFORMATION
The following illustration is an example and might NOT
match your system layout.
1
2
12
5
20
M
9 10 7 8
14
13
17
a
b
21
f
16
18
15
M
6
a Backup heater power supply
b Backup heater kit
c Outdoor unit
d Control box
e Option box
f Domestic hot water tank
Outdoor unit
Item Description
Power supply
1 Power supply for
outdoor unit
2 Normal kWh rate power
supply
User interface
3 User interface
Optional equipment
4 Remote outdoor sensor 2
Field-supplied components
5 Space heating/cooling
operation control (or
shut‑off valve)
(a) Refer to name plate on outdoor unit.
(b) Cable section 0.75 mm² till 1.25 mm²; maximum length:
500 m. Applicable for both single user interface and dual
user interface connection.
(c) Minimum cable section 0.75 mm².
Control box
Item Description
Power supply
6 Power supply for
control box
Installer reference guide
30
c
4
3
11
d
19
e
27
29
28
26
23
25
22
24
Wires Maximum
running
current
(a)
2+GND
2 6.3 A
(b)
2
(c)
(c)
2
Wires Maximum
running
current
(a)
2+GND
Item Description
Interconnection cable
7 Interconnection cable
between outdoor unit
and control box
8 Interconnection cable
for the user interface
(between outdoor unit
and control box)
9 Interconnection cable
for the domestic hot
water pump (between
outdoor unit and control
box)
10 Interconnection cable
for the space heating/
cooling operation
control (or shut‑off
valve) (between
outdoor unit and control
box)
User interface
11 User interface
Optional equipment
12 Preferential kWh rate
power supply (voltage-
free contact)
13 Domestic hot water
pump
14 Space heating/cooling
operation control (or
shut‑off valve)
15 3‑way valve
16 Power supply for
booster heater and
thermal protection
(from control box)
17 Power supply for
booster heater (to
control box)
18 Domestic hot water
tank thermistor
19 Room thermostat/heat
pump convector
20 Valve kit
(a) Cable section 2.5 mm².
(b) Cable section 0.75 mm² till 1.25 mm²; maximum length:
20 m.
(c) Cable section 0.75 mm² till 1.25 mm²; maximum length:
500 m. Applicable for both single user interface and dual
user interface connection.
(d) Minimum cable section 0.75 mm².
(e) 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.
(f) The thermistor and connection wire (12 m) are delivered
with the domestic hot water tank.
(g) Minimum cable section 0.75 mm²; maximum length: 10 m.
Backup heater kit
Item Description
Interconnection cable
EBLQ05+07CAV3 + EDLQ05+07CAV3 + EKCB07CAV3 +
EK2CB07CAV3 + EKMBUHCA3V3 + EKMBUHCA9W1
Daikin Altherma low temperature monobloc
Wires Maximum
running
current
(b)
2
(c)
2
(d)
2
(d)
2
(c)
2
(e)
2
(d)
2
(d)
2
(f)
3
(a)
4+GND
2+GND 13 A
(f)
2
(g)
3 or 4 100 mA
(f)
3
Wires Maximum
running
current
4P405544-1 – 2015.03