SB-110-4
45
▶ Select overload protective devices in case of direct-
on-line start according to maximum operating current
of the compressor. With other starting methods ac-
cording to the lower operating current.
5.2
Motor version
Part winding motor
Compressors of the HS.85 series are equipped by de-
fault with part-winding motors ("PW") in Δ/ΔΔ-wiring.
Time delay until switch-on of the 2nd part winding: max.
0.5 s!
Make the connections correctly! Wrong electrical con-
nections will lead to opposite fields of rotation or to
fields of rotation out of phase and therefore to a motor
lock!
Winding partition 50%/50%.
Motor contactor selection:
1st contactor (PW 1): 60% of the max. operating cur-
rent.
2nd contactor (PW 2): 60% of the max. operating cur-
rent.
Star-delta motor
Compressors of the HS.95 series are equipped with
star-delta motors.
Activation of the contactors and the time delay between
switching on the compressor and switching from star
operation to delta operation is integrated into the com-
pressor electronics (CM-SW-01).
Make the connections correctly!
Wrong electrical connections will lead to short-circuit!
Rate the mains contactor and the delta contactor at
min. 60% and the star contactor at min. 33% of the
max. operating current.
5.3
High potential test (insulation strength test)
The compressors were already submitted to a high po-
tential test in the factory according to EN12693 or ac-
cording to UL984 or UL60335-2-34 for the UL model.
!
!
NOTICE
Risk of defect on the insulation and motor fail-
ure!
Never repeat the high potential test in the same
way!
A repeated high potential test may only be carried out
with max. 1000 V AC.
5.4
Protection devices
On HS.95 compressors, all protective functions men-
tioned here are performed by the CM-SW-01 com-
pressor module or connected to it (OLC- D1-S, HP, LP
etc.). Please refer to Technical Information ST-150 for
information on all connections on the compressor mod-
ule.
WARNING
Risk of electric shock!
Before performing any work in the terminal box
of the compressor: Switch off the main switch
and secure it against being switched on again!
Close the terminal box of the compressor before
switching on again!
!
!
NOTICE
Compressor protection device may fail after too
high voltage has been applied. Possible sub-
sequent fault: compressor failure.
The cables and terminals of the temperature
control circuit must not come into contact with
the control voltage or operating voltage!
Mind label in terminal box cover. Observe the notes.
!
!
NOTICE
The compressor module may be damaged or
fail!
Never apply any voltage to the terminals of CN7
to CN12 – not even for test purposes!
The voltage applied to the terminals of CN13
must not exceed 10 V!
The voltage applied to terminal 3 of CN14 must
not exceed 24 V! Do no apply voltage to the
other terminals!
5.4.1
SE-E1
This compressor protection device is incorporated as
standard in the terminal box of all HS. and CS. com-
pressors, except for compressors with CM-SW-01.
Monitoring functions:
• temperature control circuit
• rotation direction/phase sequence
• phase failure
The compressor protection device monitors rotation dir-
ection and phase sequence in the first five seconds
after the compressor has been supplie with voltage.
The SE-E1 locks out immediately in case of overtem-
perature or rotation direction/phase sequence and after
three phase failures in 18 minutes or ten phase failures
