1
Wiring diagram
without pump-down cycle
Control device
.............................................................................................
TH
Optional short cycle timer (3 min) 5 pts
........
180 s
Control relay
...................................................................................................
KA
Compressor contactor
....................................................................
KM
Safety lock out relay
.............................................................................
KS
H.P. switch
..........................................................................................................
HP
Fused disconnect
....................................................................................
Q1
Fuses
............................................................................................................................
F1
External overload protection
..................................................
F2
Compressor motor
...................................................................................
M
Discharge gas thermostat
.....................................................
DGT
ELECTRICAL CONNECTIONS AND WIRING
IP rating
Motor Code
Nominal voltage
Voltage application range
1
208-230 V / 1 ph / 60 Hz
187 - 253 V
3
200-230 V / 3 ph / 60 Hz
180 - 253 V
4
400 V / 3 ph / 50 Hz
360 - 440 V
460 V / 3 ph / 60 Hz
414 - 506 V
5
230 V / 1 ph / 50 Hz
207 - 253 V
6
230 V / 3 ph / 50 Hz
207 - 253 V
7
500 V / 3 ph / 50 Hz
450 - 550 V
575 V / 3 ph / 60 Hz
517 - 632 V
9
380 V / 3 ph / 60 Hz
342 - 418 V
Voltage application
range
Soft starters
Starting current of Maneurop® 3-phase
compressors can be reduced by using
a soft starter. Two different versions are
available: CI-tronic
TM
soft starters type
MCI (recommended) and soft start kits
with statoric resistors (type SCR). Star-
ting current can be reduced by up to
50% depending on the compressor mo-
del and the type of soft starter. Also me-
chanical stresses that occur at starting
are reduced, which increases the life of
internal components.
For details of the CI-tronic
TM
MCI soft
starters, please refer to literature DKACT.
PD.C50.C1.02.
For details of the SCR soft start kits,
please contact Danfoss.
The number of starts should be limited
to 6 per hour. HP/LP pressure equaliza-
tion is required before starting.
The IP rating of the compressor terminal
boxes, according to CEI 529, are shown
in the outline drawings section.
The IP ratings are only valid when cor-
rectly sized cable glands of the same IP
rating are applied.