Environmental considerations, Freeze protection, Environmental policy – Airedale Ultima Water Cooled 75kW - 450kW User Manual

Page 6: Ultima water cooled chillers

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ULTIMA WATER COOLED

Chillers

6

Chillers

Technical Manual : Part No 6259477 V1.4.0_07_2014

Environmental Considerations

FREEZE
PROTECTION

Airedale recommends the following actions to help protect the unit during low
temperature operation. This also includes the units subject to low ambient temperatures.

Units with supply water temperatures below +5°C

Glycol is recommended when a supply water temperature of +5°C or below is
required or when static water can be exposed to freezing temperatures.


Units subject to ambient temperatures lower than 0°C

Glycol of an appropriate concentration

(1)

is used within the system to ensure

adequate protection. Please ensure that the concentration is capable of
protection at least 3°C lower than ambient.

Water / glycol solution is constantly circulated through all waterside pipework
and coils to avoid static water from freezing.

Ensure that pumps are started and running even during shut down periods,
when the ambient is within 3°C of the solution freeze point

(1)

(i.e. if the solution

freezes at 0°C, the pump must be operating at 3°C ambient).

Additional trace heating is provided for interconnecting pipework.

(1)

Referrer to your glycol supplier for details

ENVIRONMENTAL
POLICY

It is our policy to:

Take a proactive approach to resolve environmental issues and ensure
compliance with regulatory requirements.

Train personnel in sound environmental practices.

Pursue opportunities to conserve resources, prevent pollution and eliminate
waste.

Manufacture products in a responsible manner with minimum impact on the
environment.

Reduce our use of chemicals and minimise their release to the environment.

Measure, control and verify environmental performance through internal and
external audits.

Continually improve our environmental performance.

CE Directive

Airedale certify that the equipment detailed in this manual conforms with the following
EC Directives:

Electromagnetic Compatibility Directive (EMC)

2004/108/EC

Low Voltage Directive (LVD)

2006/95/EC

Machinery Directive (MD)

89/392/EEC version 2006/42/EC

Pressure Equipment Directive (PED)

97/23/EC

To comply with these directives appropriate national & harmonised standards have been
applied. These are listed on the Declaration of Conformity, supplied with each product.

Maximum and Minimum Operation Temperature (TS) and Pressure (PS)
Operating Temperature (TS), TS = Min -20°C to Max 120°C *
Maximum Operating Pressure (PS) PS = High Side 26 Barg

*Based upon the maximum machine running temperatures.

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