Tesco Major HFC Refrigeration Pack PPM

• Prepared by

• Conducted on

  Date

• Site conducted

  Select

• Solarvista Job Number

• Verisae WON

• The purpose of this document is to guide you through all tasks to be completed on a Major PPM on Tesco Larger Stores (All Stores with the exception of Express Stores) and to document all PPM's that we complete on our clients sites.

Condensing Unit

• System Number

• Make

• Model

• Year of manufacture

  Date

• Refrigerant Type

• Ensure All Electrics Are Operational and Condensing Unit is Controlling Correctly

  Yes

  No

  N/A

• Confirm Operation of Condenser Fan Motor

  Yes

  No

  N/A

• Clean Condenser With A Jet Wash Untill Condenser is Clear Through

  Yes

  No

  N/A

• Confirm condensing unit housing is free from damage and corrosion

  Yes

  No

  N/A

• Secure All Panels On Condensing Unit With Correct Fixings And Ensure Unit is Weather Proof.

  Yes

  No

  N/A

• Yes

  No

  N/A
Pack

Details

• System Number

  Select HT1 HT2 HT3 HT4 HT5 HT6 HT7 HT8 HT9 HT10 HT11 HT12 HT13 LT1 LT2 LT3 LT4 LT5 LT6 LT7 LT8 LT9 LT10 LT11 LT12 LT13 DT1 DT2 DT3 DT4 DT5 DT6 DT7 DT8 DT9 DT10 DT11 DT12 DT13

  • HT1
  • HT2
  • HT3
  • HT4
  • HT5
  • HT6
  • HT7
  • HT8
  • HT9
  • HT10
  • HT11
  • HT12
  • HT13
  • LT1
  • LT2
  • LT3
  • LT4
  • LT5
  • LT6
  • LT7
  • LT8
  • LT9
  • LT10
  • LT11
  • LT12
  • LT13
  • DT1
  • DT2
  • DT3
  • DT4
  • DT5
  • DT6
  • DT7
  • DT8
  • DT9
  • DT10
  • DT11
  • DT12
  • DT13

• Asset Number

• Make

• Model

• Serial

• Year of Manufacture

  Date

• Refrigerant type

• Are PRV's in Date and Tagged

  Yes

  No

  N/A

• Expiry Date

  Date

• Are PRV's Tagged

  Yes

  No

  N/A

• If PRV's are Out Of Date, Details of PRV's Required

Safety Checks

• Erect Signage Close to Work Area to Warn of Any Work in Progress

  

• Ensure Work Area is Clear From Any Obstruction

  Yes

  No

  N/A

• Check General Condition of Asset

  Good

  Fair

  Poor

  N/A

• Perform Test Run To Confirm Asset is Operational

  Yes

  No

  N/A

Visual Inspections

• Confirm Asset Tag is In Place and Not Damaged

  Yes

  No

  N/A

• Confirm Correct Warning Labels are Displayed on Control Panel Door

  Yes

  No

  N/A

• Confirm Mains Incoming Isolator Terminal Shields are in Place

  Yes

  No

  N/A

• Confirm Panel Wiring and Components Have No Signs of Over Heating Damage

  Yes

  No

  N/A

• Confirm Pack Has no Liquid Flood Back

  Pass

  Fail

  N/A

• Confirm Oil Level is Achieved in All Compressors & Oil Separators

  Yes

  No

  N/A

• Confirm Liquid Reciever is Free From Corrosion & Damage

  Yes

  No

  N/A

• Confirm All PRV's are Connected To Vent Lines

  Yes

  No

  N/A

• Confirm There is a Visible Level in The Bottom Indicator of the Liquid Line Sight Glass

  Yes

  No

  N/A

Electrical Tasks

• Confirm Isolator Engineer Interlock is Functioning Correctly. **This Allows Access to Control**

  Yes

  No

  N/A

• Using an Infrared Thermometer, Record Mains Terminal Temperatures **Should Not Exceed 40°c**

  Pass

  Fail

  N/A

• Confirm All Ventilation Panel Fans are Working and Filters are Clear of Debris

  Yes

  No

  N/A

• Confirm All Overloads and Trips are Operational

  Yes

  No

  N/A

• Confirm All Compressors Run When Required by Pack Controller

  Yes

  No

  N/A

• Check All Compressor Run Currents From The Overload

  Pass

  Fail

  N/A

• Confirm Against Compressor Data Plates That All Overloads Are Set No Higher Than 10% Above The Full Load Amps

  Yes

  No

  N/A

• Confirm All Crankcase Heaters are Operational

  Yes

  No

  N/A

Refrigeration Tasks

• Confirm Operation of Housing Extract Fan, Isolate and Clean Using A Soft Brush

  Yes

  No

  N/A

• Confirm All Compressor Mounts and Fixings Are Present and Secure

  Yes

  No

  N/A

• Rota Lock Torque Chart

  

• Confirm All Compressor Rota Lock Valves are Tightened To Correct Torque Setting

  Yes

  No

  N/A

• Confirm Compressor Vapour/Liquid Injection is Operational with Compressor Running (LT ONLY)

  Yes

  No

  N/A

• Visually Inspect Oil in Compressors and Oil Separators/Reservoir Sight Glasses for Any Signs of Burnout or Acidity.

  Pass

  Fail

  N/A

• Confirm Oil Separator for Excessive Pressure Drop Across the Internal Filter. **If Pressure Drop is More Than 20PSI Filter Requires To Be Replaced**

  Pass

  Fail

  N/A

• Test All Override and Safety Switches, Confirm Safety Switches Operate at The Correct Pressure. **Label Switches With Test Date and Set Pressure**

  Yes

  No

  N/A

• Trip Main Pack Controller to Confirm the Plant Runs in Backup Mode, Reset The Main Controller After Task. **Label Back up controller with High Suction Set Point and Time**

  Pass

  Fail

  N/A

• Confirm With Service Gauges That Pressure Transducers are Reading Correctly for the Main Pack Controller and Backup Controller

  Yes

  No

  N/A

• Replace Liquid Line Drier Core. **Label Plant or Drier Housing With Date of Replacement**

  Yes

  No

  N/A

• Leak Test All Refrigeration Pipework & Components

  Pass

  Fail

  N/A

Condenser

• Test For Non Condensable in Condenser

  Pass

  Fail

  N/A

• Confirm All Condenser Fan Fixings, Blades and Fan Guards are In Place and Secure

  Yes

  No

  N/A

• Confirm That The Rotation of Condenser Fans and The Operation of The Controllers is Correct

  Yes

  No

  N/A

• Brush Off Debris from Underneath the Condenser Prior to Jet Washing. Lock Off and Tag off Each Fan When Jet Washing the Condenser.

  

• Remove One Fan At A Time and Jet Wash Condenser Down Through From Above, Ensure Water is running Clear When Completed. **upload Photo of Condenser After Clean**

  Pass

  Fail

  N/A

• Confirm Condenser Fins Are Clear From Any Damage Or Corrosion. If Fines are Damaged, Straighten Using Correct Size Fin Comb

  Pass

  Fail

  N/A

Completion

• Ensure Electrical Panel and Interior of Pack Housing is Clean and Free From Debris

  Yes

  No

  N/A

• Ensure Electrical Panel Door Fully Closes and Locks are Engaged

  Yes

  No

  N/A

• Ensure All Drawings are Left in Designated Folder

  Yes

  No

  N/A

• Leave Work Area In a Clean & Tidy Condition

  Yes

  No

  N/A

• Close and Lock Plant Doors, Ensuring Canopy Locks are in Place

Shop Floor

• Leak Test All Shop Floor Refrigeration Cabinets, Pipework and Components

  Pass

  Fail

  N/A

• Confirm All Shop Floor Integral Condensers Are Clean.

  Yes

  No

  N/A

• Confirm All Dividers in Shop Floor Cabinets Are In Place and Free From Damage

  Yes

  No

  N/A

Monitoring Panel

• Confirm on Alarm Panel All Cases are Running to Set Point & Communicating

  Yes

  No

  N/A

• Confirm Battery Status, Replace if Required

  Pass

  Fail

  N/A

• Confirm All Alarms are Clear and Healthy On Ims. **Area Desk Engineer Will Confirm**

  Yes

  No

  N/A

• All Tasks On This PPM Are Complete

  Sign