Airedale OptiChill FreeCool 500kW - 1365kW - Manual (Page 9)

Chillers OPTICHILL
Chillers
9
Installation & Maintenance : 6564868 02/2013
General Description
STANDARD FEATURES
Controls As standard, the microprocessor controller can provide 8 stages of
capacity control.
Optionally, the controller is designed to provide capabilities for;

Building Management Systems (BMS)

Sequencing (Master/Slave and Run/Standby)
to meet all your system requirements, please specify at order.
Unit initial set up details can be found in the Controls section.
CAUTION When adding to an existing network, please consult Airedale to ensure
strategy compatibility.
Electrical A weatherproof electrical power and controls panel is situated at the end of the unit
and contains:

Individual mains power compartments for each
refrigeration circuit
refer to
Interconnecting wiring ,
on page 31

Separate door locking electrical isolation for each
mains compartment

Dedicated bus-bar chamber for connection of incoming 3-
phase and earth mains power supply

Emergency Stop fitted to controls compartment door

Separate, fully accessible, controls compartment, allowing adjustment of control set
points whilst the unit is operational

Circuit breakers for protection of all major unit components

Phase rotation relay incorporating phase loss protection (compressor module)
CAUTION A fused and isolated electrical supply of the appropriate phase, frequency and
voltage should be installed.
The electrical power and control panel is wired to the latest European standards and
codes of practice.
Mains supply is 3 phase and a neutral is not required, refer to Interconnecting wiring , on
page 31.
Separate 230V permanent supply is required for the controls and safety features.
Electrical terminals for external evaporator pipework trace heating (230V/500W)
are provided.
For further electrical information refer to Installation Data , on page 30.