7 Installation
Installer reference guide
35
ERLQ004~008CA + 08S18CB
Daikin Altherma – Low temperature split
4P401676-1D – 2018.07
3×
1 2 3
6
Install the switch box cover.
7.9.6
To connect the electrical wiring on the
indoor unit
1
To open the indoor unit, see
"7.2.3 To open the indoor unit" on
page 23
and
"7.2.4 To open the switch box cover of the indoor
unit" on page 23
.
2
Wiring should enter the unit from the top:
a
b+c
3
Routing of the wiring inside the unit should be as follows:
a
b+c
4
Fix the cable with cable ties to the cable tie mountings to
ensure strain relief and to make sure that it does NOT come in
contact with the piping and sharp edges.
INFORMATION
To access the domestic hot water temperature sensor, the
switch box can be tilted. The switch box should NOT be
removed from the unit.
Routing
Possible cables (depending on unit type
and installed options)
a
Low voltage
▪ Preferential power supply contact
▪ User interface
▪ Power consumption digital inputs (field
supply)
▪ Outdoor ambient temperature sensor
(option)
▪ Indoor
ambient
temperature
sensor
(option)
▪ Electrical meters (field supply)
▪ Safety thermostat for the main zone (field
supply)
▪ Safety thermostat for the additional zone
(field supply)
b
High voltage power
supply
▪ Interconnection cable
▪ Normal kWh rate power supply
▪ Preferential kWh rate power supply
▪ Power supply for backup heater
▪ Power supply for bottom plate heater
(option)
c
High voltage control
signal
▪ Heat pump convector (option)
▪ Room thermostat (option)
▪ Shut-off valve (field supply)
▪ Domestic hot water pump (field supply)
▪ Alarm output
▪ Changeover to external heat source
control
▪ Space heating operation control
CAUTION
Do NOT push or place redundant cable length in the unit.
7.9.7
To connect the main power supply
1
Connect the main power supply.
In case of normal kWh rate power supply
X2M
X5M
A5P
X1M
K3M
K2M
1 2 3
1 2 3
X6YB
X6YA
X6Y
3031
X1A
X6YA
X19A
a
