Airedale OptiChill FreeCool 500kW - 1365kW - Manual (Page 8)

OPTICHILL Chillers
8
Chillers
Installation & Maintenance : 6564868 02/2013
General Description
STANDARD FEATURES
Construction The base is fabricated from galvanised steel to ensure a rigid, durable,
weatherproof construction.
Unit panels are manufactured from galvanised sheet steel coated with epoxy baked
powder paint to provide a durable and weatherproof finish.
Standard unit colour is Light Grey (RAL 7035).
Compressors and evaporator are mounted on a rigid galvanised heavy-duty sub frame.
Fully weatherproofed electrical panels are situated at one end of the unit.
STANDARD FEATURES
Compressor Twin screw semi hermetic compressors comprising:

Electronic Protection Module featuring:
Motor, discharge gas and oil monitoring
Rotation direction protection
Phase failure protection

Low current Star/Delta Start

Internal pressure relief

Discharge non return valve

Oil separator

Oil sight glass

Oil heater

Slide valve stepped capacity control

Suction gas motor cooling
The compressors are mounted to the rigid galvanised heavy duty sub-frame with the use
of vibration reducing isolation.
Liquid injection is not required under normal operating conditions, leading to an increase
in cooling and efficiency
Closed transition Star/Delta compressor start is available as an optional extra.
Refrigeration Each refrigeration circuit is supplied with the following:

Full operating charge of R134a

Electronic Expansion Valves (EEV)

Discharge line ball valve

Liquid line ball valve

Large capacity filter drier with replaceable cores

Liquid line sight glass

Low pressure switch with Auto reset

High pressure switch with manual reset

Suction and liquid pressure transducers

Discharge line mufflers (DQ Models)