Electrical Connection; Power Supply Connections; Maximum Operating Currents For Cable Selection; Electrical Wiring - Emerson Copeland EazyCool ZXDI Series Application Manuallines

3.2

Electrical connection

3.2.1 Power supply connections

Copeland EazyCool ZXDI indoor condensing units are designed for a 380-420V/3Ph/50 Hz power
supply. A voltage tolerance of ± 10% is acceptable.
The electrical connection of the condensing unit to the power supply must be made by qualified
technicians according to the valid electrical directives, for instance DIN EN 60204-1. The voltage
drop and the temperatures on line must also be considered for cable selection.
The circuit breaker must be switched off before opening the front door.
WARNING
Electrical shock hazard! Serious personal injuries! There are unused fast-
on pins (C1 & DO2) on the XCM25D which could be under voltage. They are
covered by insulated fast-on flags in the factory. Handle carefully when
removing insulating flags during service on site.

3.2.2 Maximum operating currents for cable selection

Condensing unit
ZXDI040E-TFD
ZXDI050E-TFD
ZXDI060E-TFD
ZXDI075E-TFD
* At nominal voltage of 400V
Table 20: Maximum operating currents for cable selection

3.2.3 Electrical wiring

Before commissioning, ensure that the neutral "N" and ground protection "PE" wires are connected
to the main switch.

3.2.4 Electrical protection standard (protection class)

▪
Units: IP class IPX4.
▪
Scroll compressors: IP21 according to IEC 34.
▪
Fan: IP44 according to IEC 34.
▪
Solenoid valve coils: IP65 according to DIN 43650.

3.2.5 Overload protection

WARNING
Isolating switch "On"! Danger of electric shock! Before any intervention on
the overload compressor protection, turn off the isolating switch to de-energize
the unit.

Figure 18

C6.1.10/0118-0318/E
Locked Rated unit
rotor current (A)*
48 11.3
64 14.7
74 14.8
100 17.4
23