Title Page
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Prepared by
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Conducted on
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Site conducted
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Solarvista Job Number
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Verisae WON
Maintenance Tasks
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Erect signage of work area to warn of work in progress
Pack
Details
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System Number
- HT1
- HT2
- HT3
- HT4
- HT5
- HT6
- HT7
- HT8
- HT9
- HT10
- LT1
- LT2
- LT3
- LT4
- LT5
- LT6
- LT7
- LT8
- LT9
- LT10
- DT1
- DT2
- DT3
- DT4
- DT5
- DT6
- DT7
- DT8
- DT9
- DT10
- HT/LT1
- HT/LT2
- HT/LT3
- HT/LT4
- HT/LT5
- HT/LT6
- HT/LT7
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Make
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Model
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Serial Number
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Date Of Manufacturer
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Confirm PRV's Are In Date and Tagged
Safety Checks
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Ensure the work area is clear from any obstruction
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Check the general condition of asset
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Perform test run to confirm asset is operational
Visual Inspections
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Confirm asset tag is in place & not damaged
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Manually test operation of plant ventilation override
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Confirm correct warning labels are displayed on plant housing and control panels
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Ensure panel keys are in place
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Ensure all electrical drawings & manuals are on site, up to date & available to access
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Confirm electrical components are not overheating or arcing
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Ensure all pressure relief valves are connected to blow off lines
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Confirm pack housing has no internal/ external damage
Electrical Tasks
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Confirm isolator engineer interlock is functioning correctly
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Confirm earthing and continuity to all metal work and sub circuit components
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Ensure electrical panel and interior of pack casing is clean and free from debris.<br>Confirming trunking covers and electrical cables are tidy
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Confirm UPS does not have any warning lights lit.
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Using an infra red thermometer record the temperatures. Should not exceed 40 degrees
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Confirm control voltage is 24vdc
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Confirm PLC/Controller is operational & staging compressor in/out
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Examine overloads and confirm they are set for 10 % above operational amps. Refer to<br>compressor/motor data plate
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Confirm crankcase heaters are operational<br>
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Confirm operation of housing extract fan, isolate and clean if required using a soft brush<br>(where Fitted)
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Confirm Inverters are operational
Refrigeration Tasks
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Confirm all compressor mounts and fixings are in place and secure
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Confirm service valve connections are secure and leak free. corroding valves should be<br>cleaned and protected
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Check for pressure drop across the Oil filters
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Confirm oil management system is working correctly
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Confirm oil level is adequate and visually inspect oil for any sign of burn out or acidity
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Confirm liquid level is correct **at least 20% for G&C and Bottom Level Glass for Space & Teko**
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Confirm transducers are reading correctly in correlation with gauges
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Confirm all Temp probes are in the correct place and secure and reading correctly
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Confirm liquid line filter (where present) and change where necessary, or remove if manufacturers spec is to remove.
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Confirm main safety switch is fitted and operational with no signs of damage and<br>operation is at correct pressure **Label with set pressure and date tested**
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Confirm pressure vessels are clear of corrosion or damage
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Confirm there are no signs of damage to insulation to Pressure vessel and heat exchanger
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Confirm components and pipework are clear of rubbing or damage
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Carry out a pressure differential test and confirm no Suction filter is present
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Confirm all components and pipework are clear of any signs of accumulation of ice
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Confirm pipe work is free from any signs of damage, or leaks
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Confirm pipe brackets and clips are tight and secure
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Leak Test all components & pipework for any leaks. Confirm there are no leaks with an<br>electronic leak detector
Gas Cooler
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The cleaning of the gas cooler may not be required for this section if the gas cooler has been cleaned by our gas cooler cleaning engineer.
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Confirm that the rotation of gas cooler fans and the operation of the controllers is correct
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Confirm all condenser fan fixings, blades and fan guards are in place and secure
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Lock out Tag out Gas cooler fan (only carry out clean of one fan at a time )
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Brush off debris from underneath the gas cooler prior to jet washing.
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Jet wash all fins until water runs clear
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Confirm Gas Cooler is Clean with photos
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Confirm Gas cooler fins are clear from any damage or corrosion. If fins are damaged<br>straighten using correct size fin comb
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Remove any debris from underneath Gas cooler
Completion
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Confirm all electrical panel doors are closed and pack housing has no internal damage
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Confirm isolators are engaged with the interlocks<br>
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Leave work area in a Clean & tidy condition
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Close and lock Plant Doors ensuring they are secure
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Remove any signage used. Return any Keys used to store
Shop Floor
Shop Floor Cabinets
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Leak test all shop floor cabinets and pipe components with an electronic leak detector
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Confirm all system dividers are in place and undamaged
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Clean all shop floor integral condensers
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Record any fabric issues with shop floor cabinets
Monitoring Panel
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Confirm on Alarm Panel all fixtures are running to Tesco Specification and are<br>communicating
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Confirm Battery Status is not in alarm indicated at the top of the screen Replace if<br>required
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Confirm with area desk engineer that there are no active alarms on IMS
Signature
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I confirm that this PPM has been completed with any issues recorded.