Airedale DeltaChill FreeCool 110kW - 1080kW - Manual (Page 17)

Chillers DELTACHILL
™
Chillers
17
Technical Manual :7022932_V1.9_11/2013
Optional Extras – General
Corrosion Resistant
Coated Coils In atmospheres where high corrosion is anticipated a corrosion resistant epoxy coating is
applied to the aluminium fins.
Anti Vibration Mounts
(Spring Type) Spring vibration isolators can be supplied loose for on site fitting to the base frame of
each unit.
The isolators are suitable for fitting to structural steelwork providing the surface is level
and of sufficient strength where a high level of vibration elimination is required.
Anti Vibration Mounts
(Pad Type) Pad vibration isolators can be supplied loose for on site fitting to the base frame of
each unit.
The isolators are suitable for fitting to structural steelwork providing the surface is level
and of sufficient strength where a moderate degree of vibration elimination is required.
Extended Discharge Air
Plenum - Condenser Fan Constructed from galvanised sheet steel coated with epoxy baked powder paint, this
plenum directs discharge air vertically, thus limiting air re-circulation and provides a
degree of acoustic reduction in the horizontal plane; factory fitted. For details please
contact Airedale.
Standard unit colour is Light Grey (RAL 7035).
For further details refer to Dimensional Data .
Optional Extras Controls
BMS Interface Card Enables controlled chillers to be interfaced with most BMS, including
Airedale’s own pCOWeb, factory fitted, please contact Airedale.
For further information, refer to Controls, on page 13.
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.
R410A Leak Detection
System The refrigerant leak detection is located within the compressor enclosure. The sensor is
positioned at the lowest point to ensure correct operation. Detection rate of 100 ppm
ensures detection in case of refrigerant leakage. The leak detector has relay outputs
allowing for alarm monitoring via the Airedale controller.
This relay output can provide facilities for refrigerant pump down (Airedale chiller model
dependant) for refrigerant containment.
The refrigerant leak detection assures best environment practices in accordance with the
BRE Environmental assessment method (BREEAM) pollution section.
Pump - AC Motor - Fixed
Speed A factory fitted in line single or run/standby pump package is available in a standard or
larger external head; please specify at order.
Flow can be proved via the microprocessor display.
Factory fitted and supplied as standard complete with:

flow switch

isolating valves

inlet strainer

electrical switchgear
Inverter driven variable speed pumps are also available; refer to Pump - Inverter Driven -
Variable Speed for Constant Water Flow , on page 16.
Phase Rotation Protection A phase sequence relay is available for units containing 3 phase scroll compressors, to
prevent possible damage by running the compressor in the wrong direction.
Mains EMC Filter A mains EMC filter is fitted when the EC fan option is selected with the unit. The filter is
designed for convenient mains connection within the busbar chamber. EC fans only.
Control Panel Low
Ambient Protection Supplementary heating can be offered to the control panel to ensure components such
as LCD displays operate in low ambient conditions.
Remote Setpoint Adjust Allows the chilled water setpoint to be adjusted via an external 0-10V signal or Digital
Input.