Electrical Circuit - Parker Hiross Hyperchill ICE310 Manuel D'utilisation

The specifi c weight values at different temperatures for glycol percent-
age values are given in the table.
% Temperature [°C]
glicol
-10 0 10 20
0% 1.0024 1.0008 0.9988 0.9964
10% 1.0177 1.0155 1.0130 1.0101
20% 1.0330 1.0303 1.0272 1.0237
30%
1.0483 1.0450 1.0414 1.0374
!
Caution: When fi lling the system, take into account the ca-
pacity of the expansion vessel as well.

3.4 Electrical circuit

3.4.1 Checks and connections
!
Before carrying out any operation on the electrical system, make
sure that the appliance is disconnected from the electrical power sup-
ply.
All electrical connections must comply with the applicable regulations
in force in the country of installation.
Initial checks
1) The power supply voltage and frequency must correspond to the
values stamped on the chiller nameplate. The power supply charac-
teristics must not deviate, even for brief periods, from the tolerance
limits indicated on the electrical diagram , which are +/- 10% for the
voltage; +/- 1% for the frequency.
2) The power supply must be symmetrical (the effective voltages and
the phase angles of consecutive phases must be equal). The maxi-
mum permissible voltage imbalance is 2%.
Connection
1) The electrical power supply must be connected to the chiller using a
4-wire cable, comprising 3 phase conductors and an earth conduc-
tor, with no neutral. For minimum cable section, see par. 7.5.
2) Pass the cable through the cable entry on the rear panel of the ma-
chine and connect the phase and neutral to the terminals of the main
isolator switch (QS); connect the earth wire to the earth terminal (PE).
3) Ensure that supply cable has at its source protection against direct
contact of at least IP2X or IPXXB.
4) On the supply line to the chiller, install a residual-current circuit
breaker with a trip rating of 0.3A, with the current rating indicated
in the reference electrical diagram, and with a short circuit current
rating appropriate to the short circuit fault current existing in the
machine installation area.
The nominal current In of the magnetic circuit breaker must be equal
to the FLA with an intervention curve type D.
5) Max. grid impedance value = 0.274 ohm.
Subsequent checks
Check that the machine and the auxiliary equipment are earthed and
protected against short circuit and/or overload.
!
Once the unit has been connected and the upstream main switch
English
closed (thereby connecting the power supply to the machine), the
voltage in the electrical circuit will reach dangerous levels. Maximum
caution is required!
3.4.2 General alarm
30 40 50
All the chillers are equipped with an alarm signalling system (see electri-
0.9936 0.9905 0.9869
cal diagram), comprised of a switching free contact in a terminal block:
this may be used for the connection of an external audible or visual
1.0067 1.0030 0.9989
alarm, or used to provide an input signal for a logic control system such
1.0199 1.0156 1.0110
as a PLC.
1.0330 1.0282 1.0230
3.4.3 ON/OFF remoto
All the chillers can be connected to a remote ON/OFF control.
See the electrical diagram for the connection of the remote ON-OFF
contact.
ICE310-360 3/8