Airedale TurboChill FreeCool 200kW - 1830kW - Manual (Page 128)

128 Chiller Technical Manual 7525355 V1.0.0_04_2013
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Chillers TurboChill™ Air Cooled and FreeCool
Service Tools / Test Equipment
• Spanners
• Manometer
• Thermometer
• Refractometer
Safety Equipment
• Safety Glasses / Goggles
• Gloves
• Overalls
Maintenance
Waterside
Procedures
Water Strainer
A water strainer must be fitted to the inlet side of the chiller evaporator.
Failure to do so may result in severe damage and will void the AIREDALE warranty.
Water Flow Rate
Check that the design water flow rate is available to the unit. If not available do not turn unit on.
Waterside Pressure Drop
Measure the waterside pressure drop of the unit ensuring that the pump (if fitted) is operating.
Glycol Strength
Check and record the glycol type and strength. Low levels of glycol can cause freeze up problems when operating at
low temperatures or during the unit off state during cold ambient conditions.
Glycol concentration is measured by use of a Refractometer.
Task Frequency
Waterside
3 Mths 12 Mths 60 Mths
Check pressure drop of water strainer against
graphs. If excessive clean the strainer.
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Visually inspect pipe and pipework insulation.
Ensure pipework clamps are secure.
●
Inspect for water leakage. ●
Check pressure drop of evaporator against
graphs. Clean evaporator if excessive.
●
Check condition of Water / Glycol solution to
ensure that the system is protected against
corrosion, scale and microbiological fouling,
ensuring maximum heat transfer efficiency.
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