Heater Tape (Field Supply); To Fill The Domestic Hot Water Tank; To Insulate The Water Piping; Connecting The Electrical Wiring - Daikin Altherma 3 H W Serie Manual De Instalación

4 Installation

Heater tape (field supply)

1 Install heater tape to the outdoor field piping.
2 Provide external power supply for the heater tape.
NOTICE
▪ For the internal heater tape to operate, the power to the
unit MUST be ON. For this reason, during cold periods,
never disconnect the power, nor turn off the main
switch.
▪ In case of a power failure, power to the heater tape
(both internal and external) will be aborted and the
water circuit will NOT be protected. To guarantee a full
protection, it is always possible to add glycol to the
water circuit or to use freeze protection valves, even
when installing heater tape to the outdoor field piping.
4.3.4

To fill the domestic hot water tank

See the installation manual of the domestic hot water tank.
4.3.5

To insulate the water piping

The piping in the complete water circuit MUST be insulated to
prevent condensation during cooling operation and reduction of the
heating and cooling capacity.
Outdoor water piping insulation
See the installation manual of the outdoor unit, or the installer
reference guide.
4.4

Connecting the electrical wiring

DANGER: RISK OF ELECTROCUTION
WARNING
ALWAYS use multicore cable for power supply cables.
4.4.1

About electrical compliance

Only for the backup heater of the indoor unit
See "To connect the backup heater power
4.4.2 To connect the electrical wiring to the
indoor unit
1 Open the switch box so that you can access the back of the
switch box. See "To open the indoor
2 Route the wiring as follows:
▪ Enter the unit from the bottom.
▪ Route the wiring via the back of the switch box.
▪ Fix the cables with cable ties to the cable tie mountings at
the back of the switch box.
Installation manual
10
supply" [ 4 11].
unit" [ 4 6].
b a c
d
a, b, c Field wiring (see table below)
d Factory-mounted cable for power supply of backup heater
INFORMATION
When installing field supply or option cables, foresee
sufficient cable length. This will make it possible to open
the switch box and gain access to other components
during service.
Routing Possible cables (depending on unit type
and installed options)
a ▪ Preferential power supply contact
Low voltage ▪ User interface (option)
▪ Power consumption digital inputs (field
supply)
▪ Outdoor
(option)
▪ Indoor
(option)
▪ Electrical meters (field supply)
▪ Safety thermostat (field supply)
b ▪ Interconnection cable
High voltage power ▪ Normal kWh rate power supply
supply
▪ Preferential kWh rate power supply
c ▪ Heat pump convector (option)
High voltage control ▪ Room thermostat (option)
signal
▪ Shut-off valve (field supply)
▪ Domestic hot water pump (field supply)
▪ Alarm output
▪ Changeover to external heat source
control
▪ Space cool/heat operation control
d ▪ Power supply for backup heater
High voltage power
supply (factory-
mounted cable)
CAUTION
Do NOT push or place redundant cable length in the unit.
X2M X1M
a b+c
ambient temperature sensor
ambient temperature sensor
EABH/X16DF6V+9W
Daikin Altherma 3 H W
4P644479-1 – 2020.12