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4 Installation
Installation manual
8
EHVZ04~16S18CB3V
Daikin Altherma – Low temperature split
4P401672-1D – 2017.04
If the temperature is higher than 30°C and the humidity is higher
than RH 80%, the thickness of the insulation materials should be at
least 20 mm to prevent condensation on the surface of the
insulation.
4.5
Connecting the electrical wiring
DANGER: RISK OF ELECTROCUTION
WARNING
ALWAYS use multicore cable for power supply cables.
4.5.1
About electrical compliance
See
"4.5.4 To connect the backup heater power supply" on
page 9
.
4.5.2
To connect the electrical wiring on the
indoor unit
1
To open the indoor unit, see
"4.1.1 To open the indoor unit" on
page 5
and
"4.1.2 To open the switch box cover of the indoor
unit" on page 6
.
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.
4.5.3
To connect the main power supply
1
Connect the main power supply.
In case of normal kWh rate power supply
Summary of Contents for Altherma EHVZ04S18CB
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