Electrical (Machine Wiring And Supply) - Calorex Pro-Pac Series Owners & Installation Manual

PR0-PAC SYSTEM OWNER INSTALLATION MANUAL

5.1 ELECTRICAL (MACHINE WIRING AND SUPPLY)

SEE FIG. 4,5, AND 6 FOR PREFERRED METHOD
The cable supplying electricity to a machine with a given load must
increase in cross sectional area (C.S.A.) as the length increases in order
that the voltage drop within the cable does not exceed recommended
limits. Cable sizing should be calculated by an appoved electrician. All
electrical work to be carried out in accordance with I.E.E. standards,
latest issue, or local codes of practice as applicable.
The machine should be installed in accordance with 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
within 2m and in sight of machine.†
All units must be correctly earthed/grounded. An earth leakage trip of
the current operating type (30mA) is recommended to be fitted to this
heat pump and any associated equipment. When fitting recommended
earth leakage trip, to avoid nuisance tripping, the machine should be
connected to its own 30mA trip separate from any other associated
equipment.
Inconsistent electrical supply
The following limits of operation must not be exceeded if Dantherm
Ltd. machines are to be guaranteed either in performance or warranty
terms:
Voltage
Three-phase machines (UK)
Three phase machines (60Hz)
Cycle frequency (50Hz)
Cycle frequency (60Hz)
This voltage must be made available at the heat pump whilst running.
† Note the isolator must have a minimum of 3mm air gap when turned
off.
NOTE: All machines are fitted with a phase protection relay and will not
run if the phases are not connected in correct order (phase sequence)
or if the supply voltage is 15% less than the nominal voltage. (415V for
3N~ 50Hz). The lamp on the phase rotation relay, situated in the electric
box, is illuminated when the phases are correctly connected and the
voltage is sufficient. The undervoltage protection feature is not present
in phase protection relays fitted in 220V 3~ 60Hz machines.
14
Minimum Maximum
360V 440V
187V 253V
47.5Hz 52.5Hz
57.0Hz 63Hz
SD566250 ISSUE 35