Calorex Pro-Pac 45 - ELECTRICAL (MACHINE WIRING AND SUPPLY)

5.1 ELECTRICAL (MACHINE WIRING AND SUPPLY)
SEE FIG. 4,5, AND 6 FOR PREFERRED METHOD
The cable supplying electricity to a machine wi a given load must
increase in cross sectional area (C.S.A.) as e leng increases in order
at e voltage drop wiin e cable does not exceed recommended
limits. Cable sizing should be calculated by an appoved electrician. All
electrical work to be carried out in accordance wi I.E.E. standards,
latest issue, or local codes of practice as applicable.
The machine should be installed in accordance wi EMC2004/108/EC.
Protected supply to incorporate fuses or motor type circuit breakers
(Type C) to specified rating, (see Data Sheet). H.R.C. fuses are
recommended. An isolator which disconnects all poles must be fitted
wiin 2m and in sight of machine.†
All units must be correctly eared/grounded. An ear leakage trip of
e current operating type (30mA) is recommended to be fitted to is
heat pump and any associated equipment. When fitting recommended
ear leakage trip, to avoid nuisance tripping, e machine should be
connected to its own 30mA trip separate from any oer associated
equipment.
Inconsistent electrical supply
The following limits of operation must not be exceeded if Calorex
machines are to be guaranteed eier in performance or warranty
terms:
Voltage
MaximumMinimum
440V360VThree-phase machines (EU)
52.5Hz47.5HzCycle frequency (50Hz)
253V187VThree phase machines
(60Hz)
63Hz57.0HzCycle frequency (60Hz)
This voltage must be made available at e heat pump whilst running.
† Note e isolator must have a minimum of 3mm air gap when turned
off.
NOTE: All machines are fitted wi a phase protection relay and will not
run if e phases are not connected in correct order (phase sequence)
or if e supply voltage is 15% less an e nominal voltage. (415V for
3N~ 50Hz). The lamp on e phase rotation relay, situated in e electric
box, is illuminated when e phases are correctly connected and e
voltage is sucient. The undervoltage protection feature is not present
in phase protection relays fitted in 220V 3~ 60Hz machines.
When e machine is started for e first time it is vital at e 12 hour
delay incorporated into e compressor is allowed to occur. This delay
prevents damage to e compressor which would be expensive to
repair. Aer is initial start up e machine can be turned on and off by
use of e standby switch. It should be noted however at when on
standby e machine is still live.
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SD566252 ISSUE 51
PR0-PAC SYSTEM OWNER INSTALLATION MANUAL