Daikin Altherma EHVZ04S18CB, Installation Manual

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4 Installation
Installation manual
9
EHVZ04~16S18CB3V
Daikin Altherma – Low temperature split
4P401672-1D – 2017.04
X2M
X5M
A5P
X1M
K3M
K2M
1 2 3
1 2 3
X6YB
X6YA
X6Y
3031
X1A
X6YA
X19A
a
Legend: see illustration below.
In case of preferential kWh rate power supply
Connect X6Y to X6YB.
X2M
X5M
A5P
X1M
K3M
K2M
1 2 3
1 2 3
X6YB
X6Y
X1A
L N
L N
30 31
S1S
3 4
X19A
a b c
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, connect
X6Y to X6YB. 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.
INFORMATION
The preferential kWh rate power supply contact is
connected to the same terminals (X5M/3+4) as the safety
thermostat for the additional zone. It is only possible for the
system to have EITHER preferential kWh rate power
supply OR a safety thermostat for the additional zone.
4.5.4 To connect the backup heater power
supply
CAUTION
To guarantee the unit is completely earthed, always
connect the backup heater power supply and the earth
cable.
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
Z
max
(Ω)
*3V 3 kW 1~ 230 V 13 A —
1 Connect the backup heater power supply. A double‑pole fuse is
used for F1B.
Backup heater type Connections to backup heater power
supply
3 kW 1~ 230 V (*3V)
X2M
F1B
X1M
L N L N
2 Fix the cable with cable ties to the cable tie mountings.
4.5.5 To connect the user interface
▪ If you use 1 user interface, you can install it at the indoor unit (for
control close to the indoor unit), or in the room (when used as
room thermostat).
▪ If you use 2 user interfaces, you can install 1 user interface at the
indoor unit (for control close to the indoor unit) + 1 user interface
in the room (used as room thermostat).
INFORMATION
The user interface can only be used as room thermostat of
the
main zone .
The procedure differs slightly depending on where you install the
user interface.