Technical information

10 C6.1.7/0609-1110/E
3.3 Electrical connections
3.3.1 Power supply connections
The electrical connection of the Digital Receiver unit HLR to the power supply must be made by
qualified technicians, who should refer to the electrical diagrams located inside the electrical
connection box.
Figure 7: Electrical connection box
3.3.2 Electrical components pre-wired
When connecting electrically, care should be taken to avoid reverse rotation.
Electrical components pre-wired
S i n g l e c o m p r e s s o r u n i t s
HLR13-ZBD30KCE
HLR13-ZBD45KCE
HLR13-ZBD58KCE
HLR13-ZBD76KCE
Compressor contactor
18 A
18 A
25A
25A
Overload protector
6 to 10A
9 to 14A
13 to 18A
17 to 23A
Fuses
2
2
2
2
Electronic controller
EC2-552
EC2-552
EC2-552
EC2-552
Crankcase heater
1
1
1
1
HP/LP Pressure switch PS2
1
1
1
1
HP Pressure switch PS3
–
–
–
–
LP Pressure switch PS1
–
–
–
–
Digital 24V solenoid valve
1
1
1
1
Table 5: Electrical connections – Single compressor units
Contactor K1
Circuit breaker
Auxiliary relay K10
Fuses F1, F2
Transformer T1