Electrical Connections; Setting The Control And Safety Devices - Carrier 50CJ Serie Installations-, Betriebs- Und Wartungsanleitung

25 - ELECTRICAL CONNECTIONS

CL2 units conform to the requirements of the European Low Voltage Directive and, more specifically, with those of international
standards EN 60335-1, EN 60335-2-40, EN 61000-6-1, EN 61000-6-2, EN 61000-6-3 and EN 61000-6-4.
Always disconnect the unit before attempting to wire connections.
Open the roof as shown above, make the electrical connections as per the wiring diagram supplied with the unit and tighten the
terminals.
remove the middle screw (rear section)
- T he electrical characteristics of the mains supply must be identical to those on the name plate.
- The power supply must meet the following requirements: 400 V
- All wiring must be connected in accordance with the regulations that apply to the installation site (e.g. NF C 15100 in France).
- T he cable must be carefully chosen based on the maximum current of the unit (see table of electrical specifications), the distance
of the unit from the main supply point, the upstream protection and the neutral operating conditions.
IMPORTANT: Connect the unit to earth before making any other electrical connections.
A main cut-off switch must be installed on the unit.
- External control input: this dry contact positioned between terminals 1 and 2 is used to start the compressor
• contact closed = on
• contact open = off
To avoid damage to the compressor, the number of on/off cycles must not exceed 10 per hour.
Information to be taken into account for the contact quality: the current passing through it is 35mA at 230V.
- Fault reporting outputs: they indicate that one of the 2 pressure switches has been deactivated.
Contact characteristics:
- Minimum current: 10 mA
- Minimum voltage: 10 V
- Load: 4000 Va for AC1, 750 VA for AC15

26 - SETTING THE CONTROL AND SAFETY DEVICES

High pressure switch with manual reset: deactivated at 41.5 bar
Low pressure switch with automatic reset: deactivated at 2.5 bar/activated at 4.5 bar
Condensation pressure control: 24 bar regulation (factory setting)

unclip at both ends
Cable routing
Detail of electrics box supply
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+6
% 50 Hz for all models.
-10
remove the roof
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