Airedale OptiChill OPC 500 [30/60] Optichill chillers

OPTICHILL Chillers

Chillers

Installation & Maintenance : 6564868 08/2008

Installation Data

ELECTRICAL

• 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

• 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

General

• Once the connecting pipework is complete the electrical supply can be connected by

routing the cable through the appropriate casing hole and connecting the cables,

refer to the Wiring Diagram supplied with each unit

The equipment contains live electrical and moving parts, ISOLATE prior to

maintenance or repair work.

The unit isolators DO NOT isolate the incoming mains supply, but isolate the

individual electrical panels. Isolate REMOTELY the mains incoming supply to the

BUSBAR chamber prior to maintenance or repair work.

ALL work MUST be carried out by technically trained competent personnel.

The Emergency Stop MUST NOT be used to stop the chiller other than in the event

of an emergency.

A fused and isolated electrical supply of the appropriate phase, frequency and

voltage should be installed.

Wires should be capable of carrying the maximum load current under non-fault

conditions at the stipulated voltage.

A separately fused, locally isolated, permanent single phase and neutral supply

MUST BE FITTED

for the compressor oil heater, evaporator trace heating and

control circuits, FAILURE to do so will INVALIDATE WARRANTY

To reduce down time, if possible support the above supply with a UPS.

CAUTION

Ensure correct phase rotation.

Refer also to Interlocks & Protection, on page 25.