Mitsubishi Heavy Industries FDCW60VNX-W, Installation Manual

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38
Electrical installation
Room sensor BT50
Refer to Room sensor BT50 for RC-HY20 for function and
installation place.
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the input board (AA3).
If the sensor is to be used to change the room temperature in
°C and/or to change/stabilise the room temperature, the sensor
must be activated in menu 1.9.4.
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should only have an indicatory function, not control of the
room temperature.
SMO Externt
2
3
4
5
6
7
8
9
AA3-X6
External RC-HY40
BT50
AA3-X6
RC-HY40
CAUTION
Changes of temperature in accommodation
take time. For example, short time periods in
combination with underfloor heating will not
give a noticeable difference in room temperature.
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Refer to the explanation for RC-HY20.
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Refer to the explanation for RC-HY20.
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Refer to the explanation for RC-HY20.
RC-HY40
Load monitor
In case many power electrical appliances are connected in the
property and the electric heater is energised at the same time,
there is a risk of tripping the main fuse of the property.
The control module has an integrated load monitor that controls
the power steps of the electric heater by disconnecting step by
step in the event of overload in a phase. It will be reconnected
if other current consumption is reduced.
Connecting current sensors
A current sensor (BE1 - BE3) should be installed on each
incoming phase conductor in to the electrical distribution unit
to measure the current. This is best done in the electrical
distribution unit.
Connect the current sensors to a multi-core cable in an
enclosure next to the electrical distribution unit. Use a multi-
core cable of at least 0.5 mm² from the enclosure to the heat
pump.
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sensors.
Set the size of the property's main fuse in menu 5.1.12.
Inkommande el
N E P L
1
L
2
L
3
Värmepump Control module
Incoming electricity
6 5 4 3 2 1
SMO
Externt
External
RC-HY 40
BE3
BE2
BE1
AA3-X4
RC-HY40
AA3-X4
Electrical distribution unit Electrical distribution unit