7 Installation
Installer reference guide
26
ERLQ004~0 EHVH/X04+0 EHVH/X08S26CA
Daikin Altherma - Low Temperature Split
4P313775-1C – 2012.11
Item
Description
Wires
Maximum
running
current
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
User interface
6
User interface
2
(e)
Optional equipment
11
Power supply for
bottom plate heater
2
(b)
12
Room thermostat
3 or 4
100 mA
(b)
13
Outdoor ambient
temperature sensor
2
(b)
14
Indoor ambient
temperature sensor
2
(b)
15
Heat pump convector
4
100 mA
(b)
Field supplied components
16
Shut-off valve
2
100 mA(b)
17
Electricity meter
2 (per meter)
(b)
18
Domestic hot water
pump
2
(b)
19
Alarm output
2
(b)
20
Changeover to external
heat source control
2
(b)
21
Space cool/heat
operation control
2
(b)
22
Power consumption
digital inputs
2 (per input
signal)
(b)
(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.
Applicable for both single user interface and dual use interface
connection.
NOTICE
More technical specifications of the different connections
are indicated on:
▪ Wiring diagram in the switch box of the unit
▪ "15.6 Wiring diagram" on page 85
Backup heater
type
Power supply
Required number of
conductors
*3V
1x 230 V
2+GND
*9W
1x 230 V
2+GND + 2 bridges
3x 230 V
3+GND + 1 bridge
3x 400 V
4+GND
7
Installation
7.1
Opening the units
7.1.1
To open the outdoor unit
1
Remove 1 screw from the service cover.
1x
1
2
2
2
Remove the service cover.
7.1.2
To open the indoor unit
1
Loosen and remove the screws at the bottom of the unit.
2
Slide the front panel of the unit downwards and remove it.
CAUTION
The front panel is heavy. Be careful NOT to jam your
fingers when opening or closing the unit.
3
Loosen and remove the 4 screws that fix the top panel.
4
Remove the top panel from the unit.
2x
4x
1
3
4
2
Summary of Contents for ERLQ004~008CAV3
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