7
Installation
Installer reference guide
37
ERLQ004~008CA + 08S18CA3VF
Daikin Altherma low temperature split
4P3662261 – 2014.01
Routing
Possible cables (depending on unit type and installed options)
c
High voltage control signal
▪ Preferential power supply contact
▪ Heat pump convector (option)
▪ Room thermostat (option)
▪ Shutoff valve (field supply)
▪ Domestic hot water pump (field supply)
▪ Alarm output
▪ Changeover to external heat source control
▪ Space heat operation control
CAUTION
Do NOT push or place redundant cable length in the unit.
7.6.4
To connect the main power supply
1
Connect the main power supply.
In case of normal kWh rate power supply
X1M
1 2 3
1 2 3
X2M
X5M
X6YB
X6YA
X6Y
X1A X19A
3031
a
Legend: see illustration below.
In case of preferential kWh rate power supply
X1M
1 2 3
1 2
L N
L N
3
X2M
X5M
X6YB
X6YA
X6Y
X1A
X19A
S1S
30 31
3 4
a
b
c
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.
7.6.5
To connect the backup heater power
supply
The backup heater capacity can vary, depending on the indoor unit
model. Make sure that the power supply is in accordance with the
backup heater capacity, as listed in the table below.
Backup heater
type
Backup
heater
capacity
Power supply
Maximum
running current
*3V
3 kW
1~ 230 V
13 A
1
Connect the backup heater power supply. Use a single pole
fuse for F1B.
Backup heater
type
Connections to
backup heater power
supply
Connections to
terminals
3 kW 1~ 230 V
(*3V)
F1B
L N
L N
—
Special remark for fuses:
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