Airedale Ultima Compact FreeCool 30kW - 450kW - Manual (Page 7)

Chillers ULTIMA COMPACT
Chillers
7
Technical Manual : Part No 6259543 TM E_1.3.0 04/2013
General Description
OPTIONAL EXTRAS - ENERGY SAVING
Power Factor Correction When applied to the motors of each compressor, the compressor power factor is
controlled to a minimum operating value of 0.95 at the full operating capacity. This
satisfies many supply authorities that may impose surcharges on equipment with power
factor less than 0.95.
Electronic Expansion
Valves Electronic expansion valves differ to the normal thermostatic expansion valves in their
ability to maintain control of the suction superheat at reduced head pressures. This can
lead to significant energy savings particularly at minimum loading and low ambient
temperatures. Factory fitted, for full details refer to the
Design Features & Information -
Electronic Expansion Valves section.
OPTIONAL EXTRAS - GENERAL - ALL MODELS
Epoxy Coated
Condenser Coils In atmospheres where high corrosion is anticipated epoxy coated aluminium finned coils
can be fitted.
Coil Guards Guards can be fitted to each of the outer coils to protect against damage.
Anti Vibration Mounts
(Spring Type)
Spring vibration isolators can be supplied loose for on site fitting to the base frame of
each chiller unit.
The isolators are suitable for fitting to a concrete slab or structural steelwork providing the
surface is level and of sufficient strength where a high level of vibration elimination
is required.
For further details, please refer to Anti Vibration Mounting section.
Anti Vibration Mounts
(Pad Type)
Pad vibration isolators can be supplied loose for on site fitting to the base frame of each
chiller 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.
For further details, please refer to Anti Vibration Mounting section.
Sequence Control For the efficient temperature and capacity operation of multiple units on a single site, the
sequence controller will permit interlinked operation of the complete system thereby
providing optimum temperature control and minimum power consumption.
Included within this package is a site visit by Airedale Control Specialists to set up
multiple unit sequence control.
BMS Interface Card Enables Controlled chillers to be interfaced with most BMS, factory fitted,
please contact Airedale.
Dual Pressure Relief
Valve A 3-way dual shut-off valve that incorporates 2 relief valves and rupture disc assemblies
per circuit. The valve allows the maintenance of individual pressure relief valves and
rupture discs without the need for refrigerant evacuation.
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.
Leak Detection Kit A factory calibrated and fitted leak detection kit, will raise an alarm when refrigerant gas
is detected.
Condenser Fan
Discharge Air Plenum
Extension 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 Dimensions .
Flow Switch The factory fitted flow switch will protect the chiller against low water flow.