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4.4
Connecting the water piping
4.4.1
Connecting the water piping of the indoor
unit
To connect the water piping for space heating
NOTICE
In case of old heating installations, it is recommended to
use a dirt separator. Dirt or sediment from the heating
installation can damage the unit and reduce its lifetime.
NOTICE
Do NOT use excessive force when connecting the piping.
Deformation of the piping can cause malfunctioning of the
unit.
NOTICE
▪ It is recommended to install shut-off valves to space
heating in and space heating out connections. Shut-off
valves are field supplied. They allow service to the unit
without draining the whole system.
▪ Foresee a drain/fill point to drain or fill the space
heating circuit
1 Connect the water inlet connection (Ø22 mm).
2 Connect the water outlet connection (Ø22 mm).
b
a
Water inlet
a
Water outlet
b
3 In case of connection with the optional domestic hot water tank,
see the installation manual of the domestic hot water tank.
4.4.2
To fill the domestic hot water tank
For installation instructions, see the installation manual of the
domestic hot water tank.
Routing
Possible cables (depending on unit type and installed options)
a
▪ Interconnection cable between indoor and outdoor unit
▪ Normal kWh rate power supply
▪ Preferential kWh rate power supply
▪ Heat pump convector (option)
▪ Room thermostat (option)
▪ 3-way valve (option in case of tank)
▪ Shut-off valve (field supply)
▪ Domestic hot water pump (field supply)
RHYHBH05AAV3 + RHYHBH/X08AAV3
ROTEX HPU hybrid heat pump module
4P353065-1 – 2013.05
4.4.3
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.
If the temperature is higher than 30°C and the humidity is higher
than RH 80%, the thickness of the sealing materials should be at
least 20 mm to prevent condensation on the surface of the sealing.
4.5
Connecting the electrical wiring
DANGER: RISK OF ELECTROCUTION
WARNING
ALWAYS use multicore cable for power supply cables.
4.5.1
To connect the electrical wiring on the
indoor unit
It is recommended to install all electrical wiring to the hydro box
before installing the boiler.
1 Wiring should enter the unit from the bottom.
2 Routing of the wiring inside the unit should be as follows:
a
c
INFORMATION
When installing field supply or option cables, foresee
sufficient cable length. This will make it possible to remove/
reposition the switch box and gain acces to other
components during service.
4 Installation
b
a
b
c
Installation manual
7
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