Outside Sensor; Room Sensor (Option) - Fujitsu Waterstage Split Comfort 5 Series Installation Manual

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Outside sensor

The outside sensor is required for correct operation of
the heat pump.
Please see the fi tting instructions on the sensor's
packaging.
Place the sensor on the coldest side of the building,
generally the northern or north-western side.
It must not be exposed to morning sun.
It must be installed so as to be easily accessible but at
least 2.5m from the ground.
It is essential that it is not placed near any sources of
heat such as fl ues, upper parts of doors and windows,
near extractor vents, under balconies and eaves,
or anywhere which would insulate the sensor from
variations in the outdoor air temperature.
- Connect the outside sensor to connector X84
(terminals M and B9) on the heat pump control board.
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Room sensor (option)

The room sensor is optional.
Please see the fi tting instructions on the sensor's
packaging.
The sensor must be installed in the living room area on
an unobstructed wall. It must be installed so as to be
easily accessible.
Avoid direct sources of heat (chimney, television,
cooking surfaces, sun) and draughty areas (ventilation,
door, etc.).
Draughts in buildings are often brought about by cold air
blowing through the electrical ducting. Lag the electrical
ducts if there is a cold draught behind the room sensor.
Power supply terminal block
Safety thermostat
Terminal
Cable grommets (power)
fi g. 43 - Description of the hydraulic unit's electrical control box
- 38 -
(fi g.
Power Relay for electric backup
DHW Relay + Terminal(sensors)
▼ Installing a room sensor
■ Room thermostat T55
- Connect the sensor to the X86 connector of the heat
pump's regulator board using the connector provided
(terminals 1, 2).
■ Room thermostat radio T58
- Please refer to the instructions.
▼ Installing a room control unit
■ Room control unit T75
- Connect the sensor to the X86 connector of the heat
pump's regulator board using the connector provided
(terminals 1, 2 and 3).
45)
■ Room control unit radio T78
- Please refer to the instructions.
▼ Fan convector zone
If the installation is equipped with fan convectors or
dynamic radiators, do not use a room sensor.
HP controller
Cable grommets (sensors)
Waterstage Split Comfort DHW Serie / INSTALLATION / 2125 - EN
(fi g. 45)
(fi g. 45)
(fi g. 45)
(fi g. 45)
Interface Board