Airedale Ultima Compact UCC 360 [29/53] Chillers ultima compact

Chillers ULTIMA COMPACT

Chillers

Installation & Maintenance : 903-129 IM E 10/04/

Controls

Airedale recognises that all chiller applications are different but fall mainly into 2

application categories; Variable Supply Temperature and Constant Supply Temperature.

The onboard microprocessor has the capability of satisfying either control requirement as

illustrated below. Using the Airedale Variable Supply Temperature control scheme,

energy savings are available when compared with previous schemes and that of the

Constant Supply Temperature application.

Variable Supply Temperature control schemes offer energy savings where the supply

water temperature is not critical to its operation.

CONTROL SCHEME

FEATURES

Selection of the best application control scheme can be made via a soft switch in the

microprocessor during initial commissioning.

Examples based on Models UCC200D-6/2 having 6 Stages of Cooling

Key:

1 Return Water Temperature

2 Mean Value

3 Supply Water Temperature

4 Compressor Off

Variable Supply

Temperature Control

WATER TEMPERATURE °C

20% / 1

40% /

50% / 3

60% / 4 80% / 5 100% / 6

CHILLER CAPACITY % / COOLING STAGE SEQUENCE

Constant Supply

Temperature Control

WATER TEMPERATURE °C

20% / 1 40% /

50% / 3 60% /

80% / 5 100% / 6

CHILLER CAPACITY % / COOLING STAGE SEQUENCE

Factory set to Variable Supply Temperature Control unless otherwise stated

at order.

CAUTION

Only when the mode selection has been set can the unit be enabled.