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5.5 - Power cable access routing
The power cables are routed into the electrics box on
30RQM/30RQP units from underneath.
A removable aluminium plate on the base of the electrical
cabinet provides access for the power cables.
It is important to check that the power cable bend radius is
compatible with the connection space available inside the
electrical cabinet. Refer to the certified dimensional drawing for
the unit.
Connection expansion box
This accessory is used to strip the power cable before it is routed
inside the unit's electrical cabinet, and must be used when the
cable bend radius is not compatible with the space available
inside the electrical cabinet. The "connection expansion box"
accessory provides mechanical protection for the stripped cable
before it is routed inside the electrical cabinet.
The use of this accessory is recommended in the following cases:
Unit placed on the ground and use of a steel wired armoured
power cable.
Unit placed on the ground and use of a rigid power cable with
a section > 250 mm2.
5.6 - Field control wiring
IMPORTANT: Field connection of interface circuits carries
safety risks: any modifications to the electrical box must ensure
that the equipment remains compliant with local regulations. In
particular, precautions must be taken to prevent accidental
electrical contact between the circuits supplied by different
sources:
The choice of routing and/or insulation characteristics of the
conductors ensures double electrical insulation.
The conductors should be fixed together inside the electrical
box to prevent contact between the end of the conductor and a
live part in case of accidental disconnection.
See the 30RQM/30RQP control manual and the certified electric
wiring diagram supplied with the unit for the field control wiring
of the following devices:
•
Customer interlock (safety chain)
•
Remote on/off switch
•
Remote heat/cool switch
•
Capacity limit external switch 1
•
Remote dual setpoint
•
Operating and alarm feedback
•
Water heat exchanger pump control
•
Various interlocks on the Energy Management Module
(EMM) board (option 156).
5.7 - Electric power reserve for the user
Control circuit power reserve:
After all possible options have been connected, the TC
transformer ensures the availability of 1 A on 24 V, 50 Hz.
With option 284, this CT transformer provides a 230V/50Hz
circuit designed to power laptop battery chargers only (maximum
current of 0.8 A at 230 V).
IMPORTANT: Only connect class I and II equipment to this
power socket.
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