Airedale Ultima Remote Air Cooled 75kW - 450kW - Manual (Page 6)

ULTIMA
™ REMOTE AIR COOLED
Chillers
6
Chillers
Technical Manual : Part No 6259485 V1.6.0_07_2014
General Description
UNIT IDENTIFICATION
REMOTE AIR COOLED LIQUID CHILLER
URAC
Ultima Remote Air Cooled Chiller
75 – 450 Model Size (Expressed as Nominal Cooling in kW)
D Double Circuit - Standard Chiller
DQ Double Circuit - Quiet Chiller
DSQ Double Circuit - Super Quiet Chiller
Example URAC250DQ
INTRODUCTION The Airedale range of Ultima Remote Air Cooled liquid chillers covers the nominal
capacity range 75kW to 450kW in 45 model sizes incorporating Standard D, Quiet DQ
and Super Quiet DSQ variations.
Attention has been placed on maximising the unit’s performance while keeping the sound
and vibration levels and footprint to an absolute minimum.
The range has been specifically designed for plant room installations.
A matching range of Air Cooled Condensers is available to complement the Remote Air
Cooled Liquid Chiller, please refer to the Air Cooled
Condenser Specification .
REFRIGERANTS The range has been designed and optimised for operation with the ozone benign
R407C refrigerant.
STANDARD FEATURES
Standard Chiller
- D The Standard Ultima Air Cooled Remote Chiller comes complete with:

Microprocessor Control

Evaporator Pad Heater

Multiple Scroll Compressors

Plate Evaporator

Connections to Remote Condenser

Dual Independent Refrigeration Circuits

Electronic Expansion Valve(s)

Connections for External Trace Heating (240V/500W available)

A set of 4 M24 collared eye bolts to BS4278
Quiet Chiller
- DQ With the benefits of the Standard range, the Quiet chiller is supplied with an acoustic
package, which incorporates:

Compressor enclosure lined with Acoustic material
Super Quiet Chiller
- DSQ With the benefits of the Standard range, the Super Quiet chiller is supplied with a Quiet
acoustic package, which incorporates the following to become one of the quietest
chillers available:

Compressor enclosure lined with 40mm Acoustic material