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Chiller Commissioning Checklist

A chiller commissioning checklist is used to thoroughly record observations before and after the start-up of chiller systems. Accurately capture suction, discharge, oil, and brine temperatures using Lumiform temperature sensors. Automate temperature monitoring of chiller systems, easily manage risks through proactive alerts to the right people when something goes wrong, and stay in control of your day-to-day operations.

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Chiller Commissioning Checklist

Chiller Commissioning Checklist

Before Start-up

Read and understand all manuals (chiller, controls, etc.)
Read and understand manuals for third party components (electric motors, valves, etc.)
Check unit installation and vibration damper adjustment
Carry out functional testing of safety equipment
Read the opening pressures on all safety valves, and check that they are correct
Carry out vacuum test
Check Unisab set-up (see list of settings), and check VSD set-up, as applicable
Check oil level
Check that the heating element in the oil has been on for 6-8 hours before start
Take a sample of the primary refrigerant (must be free from water, air, etc.)
Check that the motor rotation direction is correct
Check that the coupling is aligned
Check that compressor cooling is connected correctly
Check that the plant is not leaking
Check that the valves are in the correct position for operation

After Start-up

Check that the capacity regulation system is working correctly
Check the refrigerant charge (at full load)
Check the unit for vibrations
Check the unit for vibrations using variable speed
Make a start-up log at full load
Take out a representative lubricating oil sample after about 1 hour of operation, and save it for minimum 1 year from commissioning date

Observation

Operation time [hours]
Suction pressure [°C/R]
Suction temperature [°C]
Superheating, suction gas [K]
Discharge pressure [°C/R]
Discharge temperature [°C]
Oil pressure, compressor [bar]
Oil pressure, filter [bar]
Oil temperature [°C]
Oil temperature, separator [°C]
Oil collection from shaft seal [ml]
Oil level [0, 1/4, 1/2, 3/4, Full]
Charged oil [Liter]
Motor 1/1 load [amp.]
Capacity load [%]
Noise level
Vibrations (0-100% capacity)
Brine temperature, outlet - Evaporator [°C]
Brine temperature, outlet - Condenser [°C]
Refrigerant charge [Kg]

Completion

Additional Observations
Inspector Name & Signature
Supplier/Installer Name & Signature
Manager/Supervisor Name & Signature
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