Airedale LogiCool LCC 40 [7/40] Chillers logicool
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Airedale LogiCool LCC 40 [7/40] Chillers logicool

Airedale LogiCool LCC 40 [7/40] Chillers logicool
Chillers LOGICOOL
General Description
CONSTRUCTION
The base is fabricated from galvanised steel coated with epoxy baked powder paint to
ensure a 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).
Fully weatherproofed electrical panels are situated at one end of the unit.
Access to the water and refrigeration components is via the lower front panel.
Coil guards are fitted as standard.
A set of 4 collared eye bolts to BS4278 are supplied.
STANDARD FEATURES - ENERGY SAVING
COMPRESSORS
Scroll compressor(s) comprising:
• Internal motor protection
• Internal pressure relief
• External discharge temperature protection
• Oil sight glass
LCC20
Utilises 1 digital scroll compressor offering modulating capacity control between
20 - 100% of unit capacity.
LCC40
Utilises 1 digital scroll compressor coupled in tandem with 1 standard scroll compressor
offering modulating capacity control between 10 - 100% of unit capacity.
Digital Scroll
Compressors
Digital scroll compressor technology offers compressor capacity modulation from 20% to
100% achieved by the use of an externally integrated long life electronically controlled
solenoid valve which loads and unloads the compressor scroll based on a 20
second cycle.
The solenoid valve uses suction and discharge pressures through a modulation chamber
to cause a spring loaded piston attached to the top scroll to fall down at high pressure
and move up at low. The moving of the piston separates the scrolls and results in no
compression of refrigerant.
As the digital compressor is always operating at either 100% or 0% the mass flow of
refrigerant through the system is always high, simplifying component selection and pipe
work design to guarantee oil return.
Energy Efficiency
The digitally modulated solenoid achieves capacity modulation of 20% to 100% by
varying the loaded or unloaded compressor cycle time and averaging the sum of the
loaded and unloaded state. The digital scroll compressor operates in an unloaded state
for a proportion of the 20 second cycle time; as a result, the load on the compressor is
greatly reduced as refrigerant is not drawn. Consequently the energy consumed at partial
load condition is only a percentage of that consumed during full load condition, ie:
(Loaded Time x 100%) + (Unloaded Time x 10%)
= Average Power
(Loaded Time + Unloaded Time)
7
Chillers
Installation & Maintenance : 6560544 A 06/07

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