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7 Installation
INFORMATION
Routing
Possible cables (depending on unit type and installed options)
a
▪ User interface
Low voltage
▪ Power consumption digital inputs (field supply)
▪ Outdoor ambient temperature sensor (option)
▪ Indoor ambient temperature sensor (option)
▪ Electrical meters (field supply)
b
▪ Interconnection cable
High voltage power supply
▪ Normal kWh rate power supply
▪ Preferential kWh rate power supply
▪ Power supply for backup heater
▪ Power supply for bottom plate heater (option)
c
▪ Preferential power supply contact
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 cool/heat operation control
CAUTION
Do NOT push or place redundant cable length in the unit.
7.4.3
To connect the main power supply
1 Connect the main power supply.
In case of normal kWh rate power supply
X5M
X6YB
X2M
X6Y
X6YA
X1M
1 2 3
1 2 3
Legend: see illustration below.
Installer reference guide
28
X1A X19A
30 31
a
Only applicable for indoor units with 260 liter tank. To
access the domestic hot water temperature sensor, the
switch box can be tilt. The switch box should NOT be
removed from the unit.
In case of preferential kWh rate power supply
X5M
X6Y
3 4
X6YB
X2M
30 31
X6YA
X1M
c
b
L N
1 2
S1S
L N
1 2 3
a Interconnection cable (=main power supply)
b Normal kWh rate power supply
c Preferential power supply contact
2 Fix the cable with cable ties to the cable tie mountings.
INFORMATION
In case of preferential kWh rate power supply, the
necessity of separate normal kWh rate power supply to
indoor unit (b) X2M30/31 depends on the type of
preferential kWh rate power supply.
Separate connection to the indoor unit is required:
▪ if preferential kWh rate power supply is interrupted when
active, OR
▪ if no power consumption of the indoor unit is allowed at
the preferential kWh rate power supply when active.
ERHQ011~016BA + ERLQ011~016CA + EHVH/X16S18+26CA
X1A
X19A
a
3
Daikin Altherma - Low Temperature Split
4P313777-1C – 2012.11
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