Airedale LogiCool LCC 40 [8/40] Logicool chillers

LOGICOOL Chillers

General Description

STANDARD FEATURES - ENERGY SAVING

Digital Scroll Compressors

Operation

The following examples illustrate the flexibility of the digital compressor loading stages

within the 20 second cycle time:

Example A Where: Solenoid Energised = 10 seconds Loaded Time

Solenoid De-energised = 10 seconds Unloaded Time

(10 x 100%) + (10 x 0%)

= 50%

10 Secs 10 Secs

Å100% Capacity

10 Secs 10 Secs

0% Capacity

20 Secs

Example B Where: Solenoid Energised = 5 seconds Loaded Time

Solenoid De-energised = 15 seconds Unloaded Time

(15 x 100%) + (5 x 0%)

= 75%

5 Secs 5 Secs

15 Secs 15 Secs

20 Secs

Control & Monitoring

The systems superheat is controlled by a dedicated microprocessor and digital

compressor performance is monitored via the AireTronix controller display.

CAUTION

The digital scroll compressor is always operating at either 100% or 0% mass flow.

When inspecting the refrigerant system with gauges, this is evident by pulsing of

the system pressures. Therefore, all pressure measurements MUST be taken when

the digital scroll compressor is compressing refrigerant (solenoid de-energised).

Chillers

Installation & Maintenance : 6560544 A 06/07