AIREDALE UCFC160D-6/2 Installation operating & maintenance manual - Chillers
Chillers
ULTIMA COMPACT FREECOOL
Chillers
Installation & Maintenance : 903-132 TM E 06/05/A
7
General Description
STANDARD FEATURES
With all the features of the Standard range, the Quiet and Super Quiet chillers are
available with additional features:
Quiet Chiller - DQ
•
Fan speed reduced to 750 rpm
•
Fan speed reduced to 570 rpm
•
Acoustically lined compressor compartment
Super Quiet Chiller -
DSQ
•
Enhanced Refrigeration Condenser Coils
Each refrigeration circuit is supplied with the following:
•
Full operating charge of R407C
•
Electronic Expansion Valve (EEV)
•
Liquid line ball valve
•
Discharge line ball valve
•
Large capacity filter drier with replaceable cores
•
Liquid line sight glass
•
Low pressure switch with manual reset via microprocessor controller
•
High pressure switch with manual reset
•
Suction and liquid pressure transducers
•
Pressure relief valve with integral rupture disc and indicator gauge, complying with
Pressure Regulations
•
Valves for refrigeration head pressure control
Refrigeration
•
Compressor minimum differential pressure protection
Each water glycol circuit is supplied with the following:
•
Water Flow switch
•
3 way modulating valve to control free-cooling operation
•
Strategically placed automatic air vents
•
Strategically placed drain valves
•
Butterfly shut off valve for Free-cooling coil isolation to allow for maintenance
•
Pressure transducers across evaporator to monitor water pressure drop
Water / Glycol
•
Inlet water filter 20 mesh
As standard, the
microprocessor controller can provide 2, 4 or 6 stages of
capacity control, dependent upon model type.
Optionally, the controller is designed to provide capabilities for;
•
Building Management Systems
•
Networking
•
Sequencing (Master/Slave and Run/Standby)
to meet all your system requirements, please confirm at time of order.
Controls
Unit initial set up details can be found in the
Controls
section.
Dedicated weatherproof electrical power and controls panels are situated at the end of
the unit and contain:
•
Emergency Stop fitted to controls compartment door
•
Separate, fully accessible, controls compartment, allowing adjustment of control set
points whilst the unit is operational
•
Circuit breakers for protection of all major unit components
Electrical
•
Separate, permanent supply for controls/trace heating, 230v/50Hz/1ph
The electrical power and control panel is wired to the latest European standards and
codes of practice.
Mains supply is 3 phase and a neutral is not required. Refer to
Interconnecting Wiring
.