6 Preparation
Installer reference guide
27
EBLQ+EDLQ011~0W1 + EK(2)CB07CAV3
Daikin Altherma low temperature monobloc
4P538847-1 – 2018.05
Normal power
supply
Preferential kWh rate power supply
Power supply is
NOT interrupted
Power supply is
interrupted
580
1 50
0
0
a
2
4
1
3
e
c
d
580
1 50
0
0
4
1
3
5
2
e
b
d c
During preferential
kWh rate power
supply activation,
power supply is NOT
interrupted. The
outdoor unit is turned
off by the control.
Remark:
The
electricity company
must always allow the
power consumption
of the hydro part of
the outdoor unit (and
of the control box, if
part of the system).
580
1 50
0
0
580
1 50
0
0
a
b
e
c
d
2
5
6 1
4
3
During preferential
kWh rate power
supply activation,
power supply is
interrupted
immediately or after
some time by the
electricity company.
In this case, the
hydro part of the
outdoor unit (and the
control box, if part of
the system) must be
powered by a
separate normal
power supply.
a
Normal power supply
b
Preferential kWh rate power supply
c
Hydro part of the outdoor unit
d
Refrigerant part of the outdoor unit
e
Control box
1
Power supply for outdoor unit
2
Interconnection cable to control box
3
Power supply for control box
4
Power supply for backup heater
5
Preferential kWh rate power supply (voltage free contact)
6
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)
6.4.4
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.
M
1
2
14
6
19
15
16
18
20
17
21
13
10
12
11 8 9
4
5
26
28
27
25
24
23
22
7
a
b
d
c
3
a
Outdoor unit
b
Control box
c
Option box
d
Domestic hot water tank
Outdoor unit
Item
Description
Wires
Maximum
running
current
Power supply
1
Power supply for
outdoor unit
2+GND or
3+GND
(a)
2
Normal kWh rate power
supply
2
6.3 A
3
Backup heater power
supply (only 1× 230 V)
2+GND
13 A
User interface
4
User interface
2
(b)
Optional equipment
5
Remote outdoor sensor 2
(c)
Field-supplied components
6
Space heating/cooling
operation control (or
shut‑off valve)
2
(c)
(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
Wires
Maximum
running
current
Power supply
7
Power supply for
control box
2+GND
(a)
Interconnection cable
8
Interconnection cable
between outdoor unit
and control box
2
(b)
9
Interconnection cable
for the user interface
(between outdoor unit
and control box)
2
(c)
10
Interconnection cable
for the domestic hot
water pump (between
outdoor unit and control
box)
2
(d)
11
Interconnection cable
for the space heating/
cooling operation
control (or shut‑off
valve) (between
outdoor unit and control
box)
2
(e)
12
Interconnection cable
for valve kit
EKMBHBP1 (between
outdoor unit and control
box)
3 (of which 2 are
shared with those
of item 10)
(h)
User interface
13
User interface
2
(c)
Optional equipment
