Airedale TurboChill TTC1 [8/28] Turbochill chillers
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Airedale TurboChill TTC1 [8/28] Turbochill chillers

Airedale TurboChill TTC1 [8/28] Turbochill chillers
TURBOCHILL Chillers
Chillers
8
Installation Manual : 6703052 05/2008
General Description
Each refrigeration circuit is supplied with the following:
• Full operating charge of R134a
• Liquid injection cooling circuit fitted to each compressor as standard with sight glass,
filter drier, solenoid valve and ball valve
• Electronic Expansion Valves (EEV)
• Discharge line shut off valve - Per compressor
• Suction line shut off valve - Per compressor
• Liquid line shut off valve(s)
• Large capacity filter drier(s) with replaceable cores
• Liquid line sight glass(s)
• Low pressure switch with Auto reset
• High pressure switch with manual reset - Per compressor
• Suction and liquid pressure transducers
• Suction line strainer - Per compressor
• Hot gas load balancing valve
Refrigeration
• Discharge check (non return) valve - Per compressor
As standard, the microprocessor controller can provide an infinite
capacity control between 7.5% and 100%, depending on the component selection.
Optionally, the controller is designed to provide capabilities for;
• Building Management Systems (BMS)
• Sequencing (Master/Slave and Run/Standby)
Controls
to meet all your system requirements, please specify at time of enquiry.
A weatherproof electrical power and controls panel is situated at the end of the unit
and contains:
• Individual mains power isolator for each compressor
• Separate door locking electrical isolation for fan mains
compartment
• Dedicated bus-bar chamber for connection of incoming 3-
phase and earth mains power supply
refer to
Interconnecting
Wiring
, on page 25
• Emergency Stop fitted to compressor mains 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
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 25.
Separate 230V permanent supply is required for the controls and safety features.
Electrical
Electrical terminals for external evaporator pipework trace heating (230V/500W)
are provided.
CAUTION
Unit controls supply is supported by an on board UPS to ensure control operation
is maintained in the event of a system shut down in a power failure situation.
Power will be maintained until mains power is reinstated for a maximum period of
10 minutes.
For further electrical information refer to Electrical Data, on page 25.

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