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Preparation
Installer reference guide
49
C08AF + EHYKOMB33A
Daikin Altherma R Hybrid
4P471761-1E – 2020.10
b
Indoor unit
c
Gas boiler
d
Domestic hot water tank
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+GND
(g)
3
Power supply gas boiler
2+GND
(c)
User interface
4
User interface
2
(f)
Optional equipment
5
3‑way valve
3
100 mA
(b)
6
Domestic hot water tank
thermistor
2
(d)
7
Room thermostat/heat
pump convector
3 or 4
100 mA
(b)
8
Outdoor ambient
temperature sensor
2
(b)
9
Indoor ambient
temperature sensor
2
(b)
Field supplied components
10
Shut-off valve
2
100 mA
(b)
11
Domestic hot water pump
2
(b)
12
Alarm output
2
(b)
13
Changeover to external heat
source control
2
(b)
14
Space heat operation
control
2
(b)
15
Safety thermostat
2
(e)
(a) Refer to name plate on outdoor unit.
(b) Minimum cable section 0.75 mm².
(c) Use the cable supplied with the boiler.
(d) The thermistor and connection wire (12 m) are delivered with the domestic hot
water tank.
(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) Cable section 0.75 mm² till 1.25 mm²; maximum length: 500 m. Applicable for both
single user interface and dual user interface connection.
(g) Cable section 1.5 mm
2
; maximum length: 50 m.
NOTICE
More technical specifications of the different connections are indicated on the inside
of the indoor unit.