Title Page

  • Prepared by

  • Conducted on

  • Site conducted

  • Solarvista Job Number

  • Verisae WON

Maintenance Tasks

  • Erect signage of work area to warn of work in progress

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  • Pack

Details

  • System Number

  • Make

  • Model

  • Serial Number

  • Date Of Manufacturer

  • Confirm PRV's Are In Date and Tagged

Safety Checks

  • Ensure the work area is clear from any obstruction

  • Check the general condition of asset

  • Perform test run to confirm asset is operational

Visual Inspections

  • Confirm asset tag is in place & not damaged

  • Manually test operation of plant ventilation override

  • Confirm correct warning labels are displayed on plant housing and control panels

  • Ensure panel keys are in place

  • Ensure all electrical drawings & manuals are on site, up to date & available to access

  • Confirm electrical components are not overheating or arcing

  • Ensure all pressure relief valves are connected to blow off lines

  • Confirm pack housing has no internal/ external damage

Electrical Tasks

  • Confirm isolator engineer interlock is functioning correctly

  • Confirm earthing and continuity to all metal work and sub circuit components

  • Ensure electrical panel and interior of pack casing is clean and free from debris.<br>Confirming trunking covers and electrical cables are tidy

  • Confirm UPS does not have any warning lights lit.

  • Using an infra red thermometer record the temperatures. Should not exceed 40 degrees

  • Confirm control voltage is 24vdc

  • Confirm PLC/Controller is operational & staging compressor in/out

  • Examine overloads and confirm they are set for 10 % above operational amps. Refer to<br>compressor/motor data plate

  • Confirm crankcase heaters are operational<br>

  • Confirm operation of housing extract fan, isolate and clean if required using a soft brush<br>(where Fitted)

  • Confirm Inverters are operational

Refrigeration Tasks

  • Confirm all compressor mounts and fixings are in place and secure

  • Confirm service valve connections are secure and leak free. corroding valves should be<br>cleaned and protected

  • Check for pressure drop across the Oil filters

  • Confirm oil management system is working correctly

  • Confirm oil level is adequate and visually inspect oil for any sign of burn out or acidity

  • Confirm liquid level is correct **at least 20% for G&C and Bottom Level Glass for Space & Teko**

  • Confirm transducers are reading correctly in correlation with gauges

  • Confirm all Temp probes are in the correct place and secure and reading correctly

  • Confirm liquid line filter (where present) and change where necessary, or remove if manufacturers spec is to remove.

  • 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**

  • Confirm pressure vessels are clear of corrosion or damage

  • Confirm there are no signs of damage to insulation to Pressure vessel and heat exchanger

  • Confirm components and pipework are clear of rubbing or damage

  • Carry out a pressure differential test and confirm no Suction filter is present

  • Confirm all components and pipework are clear of any signs of accumulation of ice

  • Confirm pipe work is free from any signs of damage, or leaks

  • Confirm pipe brackets and clips are tight and secure

  • Leak Test all components & pipework for any leaks. Confirm there are no leaks with an<br>electronic leak detector

Gas Cooler

  • 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.

  • Confirm that the rotation of gas cooler fans and the operation of the controllers is correct

  • Confirm all condenser fan fixings, blades and fan guards are in place and secure

  • 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.

  • Jet wash all fins until water runs clear

  • Confirm Gas Cooler is Clean with photos

  • Confirm Gas cooler fins are clear from any damage or corrosion. If fins are damaged<br>straighten using correct size fin comb

  • Remove any debris from underneath Gas cooler

Completion

  • Confirm all electrical panel doors are closed and pack housing has no internal damage

  • Confirm isolators are engaged with the interlocks<br>

  • Leave work area in a Clean & tidy condition

  • Close and lock Plant Doors ensuring they are secure

  • Remove any signage used. Return any Keys used to store

Shop Floor

Shop Floor Cabinets

  • Leak test all shop floor cabinets and pipe components with an electronic leak detector

  • Confirm all system dividers are in place and undamaged

  • Clean all shop floor integral condensers

  • Record any fabric issues with shop floor cabinets

Monitoring Panel

  • Confirm on Alarm Panel all fixtures are running to Tesco Specification and are<br>communicating

  • Confirm Battery Status is not in alarm indicated at the top of the screen Replace if<br>required

  • Confirm with area desk engineer that there are no active alarms on IMS

Signature

  • I confirm that this PPM has been completed with any issues recorded.

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