Airedale Ultima Compact FreeCool 30kW - 450kW - Manual (Page 45)

Chillers ULTIMA COMPACT
Chillers
45
Technical Manual : Part No 6259543 TM E_1.3.0 04/2013
Installation Data
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.
CAUTION Wires should be capable of carrying the maximum load current under non-fault
conditions at the stipulated voltage.

Avoid large voltage drops on cable runs, particularly low voltage wiring.
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.