AIREDALE DeltaChill DCC Series, Техническое руководство

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Introduction
16
Chillers DeltaChill
TM
DeltaChill Technical Manual 9758541 V1.1_06_2020
A weatherproof electrical power and controls panel is situated at the end of the unit and contains:
• Individual mains power isolation for each circuit’s compressors.
• Separate electrical isolation for fans (shell and tube evaporator units only).
• 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 set points while the unit is operational.
• Circuit breaker for protection of all major unit components.
• Phase rotation relay incorporating phase loss protection.
• Electrical power and control panels wired to the latest European standards and codes of practice.
Mains power supply is three phase no neutral for standard units with a separate 230V 1ph 50Hz permanent supply,
required for the controls and safety features; refer to interconnecting wiring for more information.
For units with dual power ATS option a three phase and neutral supply is required, powering the entire unit including
controls; refer to interconnecting wiring for more information.
Electrical terminals for external evaporator pipe work trace heating (230V / 500 Watt) are provided, the external trace
heating is fitted by others.
Control Panel Light
A control panel light can be fitted as an option to shell and tube evaporator units to enable maintenance to be carried out
during poor light conditions.
Mains Cable Entry
Brazed plate evaporator units have a dedicated bus bar chamber, with entry from either left or right. Shell and tube
evaporator units allow main cable entry from either side of the electrical control panel.
Maximum cable gland sizes
Single 1 x M75S
Twin 2 x M63S
Electrical
General Information
Features
DCCxxxDR DCCxxxDX DCFxxxDR
DCFxxxDX
DCCxxxTR
DCCxxxTX DCFxxxTR DCFxxxTX
Electrical
Phase Rotation Protection
● ● ● ● ● ● ● ●
Electronic Soft Start
○ ○ ○ ○ ○ ○ ○ ○
Power Monitoring
○ ○ ○ ○ ○ ○ ○ ○
Single Point Isolation
○ ○ ○ ○ ○ ○ ○ ○
Power Factor Correction*
○ ○ ○ ○ ○ ○ ○ ○
Maintenance Socket*
○ ○ ○ ○ ○ ○ ○ ○
Low Ambient Kit*
○ ○ ○ ○ ○ ○ ○ ○
●
Standard Features
○
Optional Features
–
Features Not Available
* Model dependant, please contact Airedale.
Phase Rotation Protection
A phase sequence relay shall be fitted for units containing 3 phase scroll compressors to prevent possible damage by
running the compressor in the wrong direction.
Electronic Soft Start
The electronic soft start enables the chiller compressor motor to be ramped to speed with the minimum full load current.
Further benefits include removal of nuisance tripping, supply voltage dips and motor overheating.
Power Monitoring
A power meter shall be fitted to the unit. Voltages, currents and power inputs can be monitored and recorded giving
power usage of the chiller. Current transformers are fitted to the unit’s incoming supply.
Single Point Isolation
Single point isolation shall be fitted as a standard feature. The feature is however available to be removed upon request,
subject to your own 3 phase unit mains isolator.