AIREDALE UFC200D-8, Руководство по установке, эксплуатации и техническому обслуживанию

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Chillers ULTIMA FREECOOL
Chillers
Installation & Maintenance Manual : 903-125 IM E 05/04/A
15
Installation Data
Chilled water pipework and ancillary components must be installed in accordance with:
• National and Local Water supply company standards.
• The manufacturer's instructions are followed when fitting ancillary components.
• The system liquid is treated to prevent corrosion and algae forming.
WATER SYSTEM DATA
• Glycol required as standard, with the correction concentration to suit the lowest
ambient the equipment will experience
CAUTION The unit water connections are NOT designed to support external pipework,
pipework should be supported during installation.
CAUTION
No liability for externally connected pipework will be regarded by Airedale
International Air Conditioning Ltd.
STANDARD RECOMMENDED INSTALLATION
CAUTION The following installation recommendations should be adhered to. Failure to do
this could invalidate the chiller warranty.
The water flow commissioning valve set is not shown in the diagram, as the valve can be
fitted elsewhere within the Chilled Water circuit.
P T
BYPASS CIRCUIT
(For Flushing)
SHUT OFF
VALVES
TEMPERATURE
GAUGES
PRESSURE
GAUGES
FLEXIBLE
CONNECTIONS
AUTO AIR
VENT (At
Highest Point)
PUM P
PUMP
STRAINER
T
P
OUT
IN
DE-AERATER
(Optional Extra)
The recommended requirements to allow commissioning to be carried out correctly are:
• A water-flow commissioning valve set fitted to the system
• In multiple chiller installations, 1 commissioning valve set is required per chiller
• Air vents are to be installed at all high points and where air is likely to be trapped
at intermediate points.
• Drain points are to be installed at all low points in the system and in particular
adjacent to the unit for maintenance to be carried out.
• Isolating valves should be installed adjacent to all major items of equipment for
ease of maintenance.
• Balancing valves can be installed if required to aid correct system balancing.
• All chilled water pipework must be insulated and vapour sealed to
avoid condensation.
Recommended Minimum
Component
Requirements
• If several units are installed in parallel adjacent to one another, reverse return
should be applied to avoid unnecessary balancing valves.
When installing circulating water pumps or equipment
containing them, the following rules
should be applied:
• Ensure the system is filled with liquid then vented and the pump primed with water
before running the pump. This is required as the pump bearings and mechanical
seal faces are cooled by the pumped liquid.
Pump Statement
• To avoid cavitation the NPSH (Net Positive Suction Head) incorporating a safety
margin of 0.5m head must be available at the pump inlet during operation.
CAUTION Where pumps are installed by others, a timer MUST be installed to ensure that the
pumps run for at least 3 minutes after a remote off signal is received by the chiller.