Ultima Compact™
Chillers
45
Ultima Compact 30-150kW Technical Manual 9690553 V1.2.0_10_2019
Installation
Electrical
General
● As standard the equipment is designed for 400V, 3 Phase, 3 wire 50Hz and a separate permanent 230V, 1 phase,
50Hz supply, to all relevant IEE regulations, British standards and IEC requirements.
● A fused and isolated electrical supply of the appropriate phase, frequency and voltage should be installed.
● The control voltage to the interlocks is 24V. Always size the low voltage interlock and protection cabling for a
maximum voltage drop of 2V.
● Avoid large voltage drops on cable runs, particularly low voltage wiring.
Wires should be capable of carrying the maximum load current under non-fault conditions at the
stipulated voltage.
CAUTION
A separately fused, locally isolated, permanent single phase and neutral supply MUST BE FITTED
for the compressor sump heater, evaporator trace heating and control circuits, FAILURE to do so
could INVALIDATE WARRANTY.
CAUTION
pLAN Termination
RxTx -
RxTx +
GND
RxTx -
RxTx +
GND
Panel Side
Customer Side
The plugged termination ensures that the connections are made simultaniously. Failure to attach
the cables this this way may cause damage to the controller.
CAUTION
Ins
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