Exhibit A CMP - Revised.pdf

Preventive Maintenance Checklist:

Asset Type: Chiller, Air Cooled

Description: HYDRONIC MODULE

Frequency: Annual 3.5Estimated Time (hours):ACLCH12ANCode:

(T)ools, (S)afety Equipment and (M)aterials

Mechanic tool set.1

Cleaning materials.2

Distilled or purified water (refrigerant).3

Vacuum compressor oil. (IDEMITSU DAPHNE SUPERACEPACK 68)4

Safety Guidelines

Schedule work with operating personnel.1

Check with operating personnel for deficiencies.2

Follow site safety procedures and your supervisor’s instructions.3

Obtain and review manufacturer's instructions.4

Report any problems you find.5

Record the results in the equipment history log.6

Maintenance Procedures

Chiller:

Check door seals for damage.

Check water line clean the filter .

Check the cleaning of the exchanger and clean if necessary

Vacuum Pump and System:

Inspect the vacuum pump.

Check oil for contaminants and water.

Check V-belt tension and damage.

Check hose, hose clamp, and hose nipple for possible damage.

Check vacuum pump oil level. Add new oil in the amount of 200-300cc (7-10 oz).

WATER Pump:

Inspect and record bearing status on the Bearing Monitor.

Check the entire system if have any leak and repair if necessary

Valves:

Cycle valves and make sure they operate smoothly and function sufficiently.

Evaluate valve seats and actuator seals for replacement. Submit a work order if replacement is necessary.

Variable Speed Drive:

Check unit for damage or signs of overheating.

Check the main circuit and control circuits for tightness and signs of damage or overheating.

Check that unit is mounted securely.

Evaluate the cooling fan for replacement. Expected life is 61,000 hours. The hours can be checked on the inverter display.

Electrical Controls and Connections:

Check all electrical controls and connections for damage and tightness.

Operational Status:

PM Checklist Page 1 of 2Printed Friday, December 1, 2023 ACLCH12AN

Description: HYDRONIC MODULE

Frequency: Annual 3.5Estimated Time (hours):ACLCH12ANCode:

Check all control panel settings. Record and evaluate all alarms.

Check operation logs for indication of abnormal operation.

PM Checklist Page 2 of 2Printed Friday, December 1, 2023 ACLCH12AN

Asset Type: CHILLER

Description: HYDRONIC MODULE

Frequency: Monthly 1Estimated Time (hours):ACLCH12MOCode:

(T)ools, (S)afety Equipment and (M)aterials

Mechanic tool set.1

Cleaning materials.2

Distilled or purified water (refrigerant).3

Safety Guidelines

Schedule work with operating personnel.1

Check with operating personnel for deficiencies.2

Follow site safety procedures and your supervisor’s instructions.3

Obtain and review manufacturer's instructions.4

Report any problems you find.5

Record the results in the equipment history log.6

Maintenance Procedures

Check the Water Pump and change from Pump1 to Pump 2 or reverse

Check the system if have any leak and repair if necessary.

Variable Speed Drive:

Check unit for damage or signs of overheating.

Operational Status:

Check all control panel settings. Record and evaluate all alarms.

PM Checklist Page 1 of 1Printed Friday, December 1, 2023 ACLCH12MO

Description: GHP AIR COOLED CHILLER

Frequency: Annual 8Estimated Time (hours):ACLCH21ANCode:

(T)ools, (S)afety Equipment and (M)aterials

Mechanic Tool Set. Refrigeration tools.1

Pressure washer.2

Fin comb.3

Cleaning materials.4

Personal protective equipment (PPE) for handling refrigerants.5

Compressor oil.6

Oil filter.7

Access ladder.8

Halide Leak Detector,9

Electronic Leak Detector,10

Ultrasonic Noise Detector11

Tube Plugging Kit, Oil Filter12

Safety Guidelines

Schedule work with operating personnel.1

Follow site safety rules for lockout and tagout.2

Be very careful when climbing roof access ladders.3

Review and follow the manufacturer’s instructions.4

Follow safety and environmental rules for refrigerants.5

Don't vent refrigerants. Refrigerants must be recovered.6

Submit a work order if refrigerants need to be added.7

Report any problems you find.8

Record the results in the maintenance log.WARNING: EXTREME PRESSURE OR VACUUM MAY BE

PRESENT.

Maintenance Procedures

Monthly Procedure

Check the start of the endotermic engine and check exhaust for excessive black or white smoke.

Check when the Engine is on if have noise and vibrations.

Check head pressure.

Check suction pressure.

Check discharge pressure

Check chill water - intake.

Check operating temperatures.

Switch primary/secondary compressors and pumps.

Check hot gas bypass valve.

Check thermostatic expansion valve.

Check refrigerant level.

Check liquid line sight glass/moisture indicator.

PM Checklist Page 1 of 3Printed Friday, December 1, 2023 ACLCH21AN

Description: GHP AIR COOLED CHILLER

Frequency: Annual 8Estimated Time (hours):ACLCH21ANCode:

Check water lines.

Check compressor and heaters for proper operation.

Check compressor superheat on evaporator and economizer TXVs. Adjust as required

Check condenser coils for dyrt/ debris and clean if necessary

Check operation of all controls

Replace burned out indicator light

Semi-Annual Procedure

Check coolant level. Add as required.

Check coolant level. Add as required.

Inspect condition of fan and alternator belts and radiator hoses. Inspect belts for proper tension.

NOTE: If one fan belt requires replacing, replace all fan belts as a set.

Check the elctrical connection .

Inspect air filter. Clean or replace as necessary.

Inspect exhaust manifolds, mufflers and piping for leaks.

Take a Registration an half an hour of the work of the machine with the load and compare with the manifacturer data analisys.

Check programmable operating set points ans safety cutouts and make sure they are correct for the operation

Check compressor and heaters for proper operation

Check compressor super heat on evaporator and economizer TXVs. Adjust as required

Check condenser and economizer subcooling. Adjust as required

Leak check the chiller. Submit work order to find and repair leaks.

Annual Procedure

Check the Engine spark plugs conditions and replace if necessary.

Check the system in both seasonal functions by checking the energy consumption and compare the data with the manufacturer settings and adjast if necessary.

Clean tubes and test for leakage.

Calibrate chiller control system, load limiting system, and safety controls.

Check compressor oil on semi-hermetic compressors. Take oil samples and submit for analysis.

Replace oil filter, clean oil line strainer.

Check oil level in oil separator sight glass.

Clean and inspect the chiller:

Clean the condensing unit. Remove debris from air screen and clean underneath unit. Clear drain line and pan from sludge or debris.

Inspect system for signs of rust. Remove rust, prime with rust inhibitor, paint to match original condition. Carefully inspect all fasteners to ensure integrity and replace any which have rusted. All replacement components, parts, and materials should

Pressure wash coil with coil cleaning solution. Straighten fin tubes with fin comb.

Check and clean fan motors.

PM Checklist Page 2 of 3Printed Friday, December 1, 2023 ACLCH21AN

Description: GHP AIR COOLED CHILLER

Frequency: Annual 8Estimated Time (hours):ACLCH21ANCode:

Clean water strainers.

Cycle all valves two times.

Check electrical circuits:

Check all electrical connections for tightness.

Inspect condition of electrical contacts on motor starters and controls. Check electrical connections for tightness.

Relamp as necessary.

Perform operational test and return to service.

Check controller for proper operation.

Check programmable operating setpoints and safety cutouts and make sure they are correct for the operation.

Remove debris from work-site.

PM Checklist Page 3 of 3Printed Friday, December 1, 2023 ACLCH21AN

Description: GHP AIR COOLED CHILLER

Frequency: Monthly 2Estimated Time (hours):ACLCH21MOCode:

(T)ools, (S)afety Equipment and (M)aterials

Mechanic tool set. Refrigeration tools.1

Rags and cleaning materials.2

Refrigerant leak tester.3

Replacement lamps4

Access ladder.5

Personal protective equipment (PPE) for handling refrigerants.6

Rags.7

Safety Guidelines

Schedule work with operating personnel.1

Follow site safety rules for lockout and tagout.2

Be very careful when climbing roof access ladders.3

Review and follow the manufacturer’s instructions.4

Follow safety and environmental rules for refrigerants.5

Don't vent refrigerants. Refrigerants must be recovered.6

Submit a work order if refrigerants need to be added.7

Report any problems you find.8

Record the results in the maintenance log.WARNING: EXTREME PRESSURE OR VACUUM MAY BE

PRESENT.

Maintenance Procedures

Check the start of the endotermic engine and check exhaust for excessive black or white smoke.

Check when the Engine is on, if have noise and vibrations.

Check head pressure.

Check suction pressure.

Check discharge pressure

Check chill water - intake.

Check operating temperatures.

Switch primary/secondary compressors and pumps.

Check hot gas bypass valve.

Check thermostatic expansion valve.

Check refrigerant level.

Check oil level in oil separator sight glass.

Check for leaks all lines.

Check liquid line sight glass/moisture indicator.

Check water lines.

Check condenser coils for dirt/debris and clean if necessary.

Check operation of all controls.

Replace burned out indicator lights.

PM Checklist Page 1 of 1Printed Friday, December 1, 2023 ACLCH21MO

Description: GHP AIR COOLED CHILLER

Frequency: Semi-Annual 6Estimated Time (hours):ACLCH21SACode:

(T)ools, (S)afety Equipment and (M)aterials

Mechanic tool set. Refrigeration tools.1

Rags and cleaning materials.2

Refrigerant leak tester.3

Replacement lamps4

Access ladder.5

Personal protective equipment (PPE) for handling refrigerants.6

Rags.7

Safety Guidelines

Schedule work with operating personnel.1

Follow site safety rules for lockout and tagout.2

Be very careful when climbing roof access ladders.3

Review and follow the manufacturer’s instructions.4

Follow safety and environmental rules for refrigerants.5

Don't vent refrigerants. Refrigerants must be recovered.6

Submit a work order if refrigerants need to be added.7

Report any problems you find.8

Record the results in the maintenance log.WARNING: EXTREME PRESSURE OR VACUUM MAY BE

PRESENT.

Maintenance Procedures

Monthly Procedure

Check the start of the endotermic engine and check exhaust for excessive black or white smoke.

Check when the Engine is on if have noise and vibrations.

Check suction pressure.

Check discharge pressure

Check chill water - intake.

Check operating temperatures.

Switch primary/secondary compressors and pumps.

Check hot gas bypass valve.

Check thermostatic expansion valve.

Check refrigerant level.

Check oil level in oil separator sight glass.

Check for leaks all lines.

Check liquid line sight glass/moisture indicator.

Check water lines.

Check condenser coils for dirt/debris and clean if necessary.

Check operation of all controls.

Replace burned out indicator lights.

Semi-annual Procedure PM Checklist Page 1 of 2Printed Friday, December 1, 2023 ACLCH21SA

Description: GHP AIR COOLED CHILLER

Frequency: Semi-Annual 6Estimated Time (hours):ACLCH21SACode:

Semi-annual Procedure

Check coolant level. Add as required.

Change the engine oil after 10.000 hour of work.

Inspect condition of fan and alternator belts and radiator hoses. Inspect belts for proper tension.

NOTE: If one fan belt requires replacing, replace all fan belts as a set.

Check the elctrical connection .

Inspect air filter. Clean or replace as necessary.

Inspect exhaust manifolds, mufflers and piping for leaks.

Take a Registration an half an hour of the work of the machine with the load and compare with the manifacturer data analisys.

Check programmable operating setpoints and safety cutouts and make sure they are correct for the operation.

Check compressor and heaters for proper operation.

Check compressor superheat on evaporator and economizer TXVs. Adjust as required.

Check condenser and economizer subcooling. Adjust as required.

Leak check the chiller. Submit work order to find and repair leaks.

PM Checklist Page 2 of 2Printed Friday, December 1, 2023 ACLCH21SA

Asset Type: Air Handler

Description: AIR HANDLING UNIT (BELT DRIVE)

Frequency: Annual 4Estimated Time (hours):AH16ANCode:

(T)ools, (S)afety Equipment and (M)aterials

Mechanic’s tool set.1

Grease gun.2

Fan bearing grease.3

Polyrex-EM grease for motors.4

Biocide.5

Vacuum.6

Fin comb.7

Cleaning tools and materials.8

Hose and bucket for cleaning strainers.9

Infrared tester.10

Vibration analysis tester.11

Megger.12

Clamp-on amp meter.13

Refrigerant leak test equipment14

Belts15

Replacement filters.16

Safety Guidelines

Schedule work with operating personnel.1

Follow site safety rules for lockout and tagout.2

Review and follow the manufacturer’s instructions.3

Record equipment damage or deficiencies.4

Follow safety and environmental procedures for handling refrigerants (DX units only).5

Record results in the equipment history log.6

Maintenance Procedures

Quarterly procedures:

Check, clean and adjust grills, dampers, vanes, linkages as required.

Clean and wash filters with right products. Replace if needed.

Check for unusual noise, vibration or leakage.

Restore to service.

Clean up work area and remove trash.

Annual procedures:

Pre-work operational tests with unit operating:

Check for unusual noise or vibration.

Perform vibration analysis. Record corrective measures if needed.

Perform thermal analysis. Record corrective measures if needed.

Stop the unit and clean/adjust:

Clean exterior of unit.

PM Checklist Page 1 of 3Printed Friday, October 27, 2023 AH16AN

Description: AIR HANDLING UNIT (BELT DRIVE)

Frequency: Annual 4Estimated Time (hours):AH16ANCode:

Inspect panels for damage.

Inspect air hoods and air louvers for damage and debris.

Inspect bird screens for damage and debris.

Inspect mist eliminators for damage, dirt and debris.

Check and clean grills, dampers, vanes, linkages as required.

Check damper actuators and linkage for proper operation. Adjust linkage on dampers if out of alignment.

Lubricate mechanical connections of dampers sparingly.

Vacuum interior of unit if necessary.

Check doors, handles, latches and hinges for proper operation.

Inspect door gaskets for damage and proper seal.

Check soundness of unit structure. (Is it falling apart?)

Service the fan:

Check belts for wear and cracks, adjust tension or alignment, and replace belts when necessary.

Check fan housing, wheel, shaft, frame, inlet vanes and bearings for damage, wear, loose parts, dirt and debris.

Check fan base, vibration isolators and thrust restraints for damage, wear, loose parts, dirt and debris.

Check sheaves for excessive wear. Submit a work order to replace the sheaves when the belts start riding low.

Check fan blades for dust buildup and clean if necessary.

Check fan blades and moving parts for cracks and excessive wear.

Check mounting bolts, set screws, etc. for security.

Check condition of extended lubrication lines when present.

Lubricate fan shaft bearings while unit is running. Do not over lubricate. Remove old or excess lubricant. (See manufacturer literature)

Clean and service the coils and cooling/heating components:

Inspect coils and clean by brushing, blowing, vacuuming, or pressure washing if necessary.

Check coils for leaks and adjust tightness of fittings when required.

Use fin comb to straighten coil fins. (If necessary)

For hydronic units, cycle all hydronic water valves two times and check for leaks.

For DX units, check for refrigerant leaks on all lines, valves, fittings, coils, etc. Submit a work order to repair any leaks found.

Check and repair damaged insulation.

Check filters and change if necessary.

Clean and service the condensate catch and removal components:

Flush and clean condensate pans and drains, remove all rust, prepare metal and paint where required.

Ensure condensate drain lines are clear and free running.

PM Checklist Page 2 of 3Printed Friday, October 27, 2023 AH16AN

Description: AIR HANDLING UNIT (BELT DRIVE)

Frequency: Annual 4Estimated Time (hours):AH16ANCode:

Service condensate pumps, if equipped.

Clean the strainers.

Service the motor:

Clean exterior of motor surfaces of soil accumulation.

Clean motor ventilation ports.

Check motor for damage.

Lubricate motor bearings with Polyrex-EM grease. Don't use fan bearing grease in the motor.

Check adjustable fan motor base and mounting hardware for damage or loose parts. Tighten as necessary.

Check grounding straps for tightness.

Check and record insulation resistance with a megger. Don't megger variable frequency drives.

Perform corrective measures identified during the pre-work operation test if possible as preventive maintenance. Otherwise, submit a work order for correction.

Remove tags, perform operational test, and return unit to service.

Check for proper condensate drainage.

Check for unusual noise or vibration.

Perform vibration and thermal analysis to verify correction of any pre-test problems.

Check unit sensors for proper readout at the building automation system.

Record motor running amps at 100 percent frequency and air loading.

PM Checklist Page 3 of 3Printed Friday, October 27, 2023 AH16AN

Description: AIR HANDLING UNIT (Belt Drive)

Frequency: Quarterly 0.5Estimated Time (hours):AH17QUCode:

(T)ools, (S)afety Equipment and (M)aterials

Mechanics tool set.1

Vacuum and cleaning materials.2

Replacement filters.3

Safety Guidelines

Schedule work with operating personnel.1

Follow site safety rules for lockout and tagout.2

Review and follow manufacturer OM instructions.3

Record equipment damage or deficiencies.4

Follow safety and environmental procedures for handling refrigerants (DX units only).5

Record results in the equipment history log.6

Maintenance Procedures

Check, clean, and adjust grills, dampers, vanes, linkages as required.

Clean and wash filters with right products. Replace if needed

Check for unusual noise, vibration or leakage.

Restore to service.

Clean up work area and remove trash.

Check Belts for wear and cracks, adjust tension and alignment, and replace the belt if necessary

PM Checklist Page 1 of 1Printed Friday, October 27, 2023 AH17QU

Asset Type: A/C, Split-System Unit

Description: AC SPLIT SYSTEM, CONDENSER & EVAPORATOR

Frequency: Annual 2Estimated Time (hours):AS02ANCode:

(T)ools, (S)afety Equipment and (M)aterials

(T) Megger.1

(M) Biocide strips.2

(M) Filter replacement.3

(T) Vacuum.4

(T) Fin comb.5

(T) Coil cleaner.6

(T) Oiler.7

(T) Clamp-on amp meter.8

Mechanic's tool set, refrigeration system tools.9

Refrigerant manifold gage set.10

Refrigerant leak tester.11

Cleaning tools and materials, pressure washer, vacuum, fin comb,12

Rust removal materials, primer, paint.13

Lubricants, belts.14

Personal protection equipment for handling refrigerants.15

Ladder.16

Safety Guidelines

Schedule work with operating personnel.1

Follow site safety rules for lockout and tagout.2

Be very careful when climbing roof access ladders.3

Review and follow the manufacturer’s instructions.4

Follow safety and environmental rules for refrigerants.5

Don't vent refrigerants. Refrigerants must be recovered.6

Submit a work order if refrigerants need to be added.7

Report any problems you find.8

Record the results in the maintenance log.9

Maintenance Procedures

Lock and tag out unit.

Check with operating or area staff for problems.

Clean dust and dirt from entire unit and all ventilation ports.

Wash coils with water hose. Only use a coil cleaning solution if nothing else will work.

Inspect system for any signs of rust. Remove rust, prime with rust inhibitor, paint to match original condition. Rust must be completely removed down to base metal.

Clean blowers, fans, motors, drip pans and drain piping.

Check and adjust vibration eliminators.

Check hold down bolts and grounding straps for tightness.

Grease shaft and motor bearings, if needed.

Adjust the belt tension and alignment, if needed.

PM Checklist Page 1 of 3Printed Thursday, October 26, 2023 AS02AN

Description: AC SPLIT SYSTEM, CONDENSER & EVAPORATOR

Frequency: Annual 2Estimated Time (hours):AS02ANCode:

Check electrical wiring and connections; tighten loose connections.

Clean area around equipment.

Check system for refrigeration leaks. If leaks are detected, submit a work order to correct the problems and recharge the system.

Remove locks and tags

Perform operational check and return to service.

Record suction and discharge pressures, sub-cooling and superheat.

EVAPORATOR PROCEDURE

GENERAL:

Cover all exposed surfaces below the evaporator.

Carefully remove access panels, covers, or ceiling tiles to gain access to the equipment.

CASING

CASING:

Clean the exterior and interior of the unit casing.

Remove rust and corrosion. Apply corrosion protection.

Carefully inspect all fasteners to ensure integrity and replace any which have rusted. Allreplacement components, parts, and materials should be of rust resistant manufacture.

Check belts and alignment, if applicable.

Inspect air side and condensate removal components:

Inspect and clean coils by vacuuming or brushing. Use coil cleaner if excessively dirty.

Use fin comb to straighten coil fins where necessary.

Inspect and clean washable filters if dirty. Recharge wire mesh filters with oil when applicable.

Inspect and replace disposable filters if dirty.

Drain and clean condensate pan. Check condensate lines for free flow.

Replace biocide strips.

Fix damaged or missing insulation on the cooling lines using "Armaflex" and/or no-drip tape.

Clean strainers.

Check controls, trap, freeze-stat, and control-stat for proper operation.

Service condensate pumps if equipped.

Clean and test motors and fans:

Check ventilation ports for soil accumulation, clean if necessary.

Clean exterior of motor surfaces of soil accumulation.

Clean fan blades and check for damage.

Check belts and alignment, if applicable.

Lubricate motor bearings where required. Check manufacturer's information for requirements.

Check motor windings for accumulation of soil. Vacuum if required.

Check hold down bolts and grounding straps for tightness.

Check electrical connections for tightness.

Return to service and perform an operational test.

Test in heating and cooling modes.

PM Checklist Page 2 of 3Printed Thursday, October 26, 2023 AS02AN

Description: AC SPLIT SYSTEM, CONDENSER & EVAPORATOR

Frequency: Annual 2Estimated Time (hours):AS02ANCode:

Test in heating and cooling modes.

Check unit sensors and calibrate if required. Record calibration values.

Check unit for noise, vibration or condensate leakage.

Check for refrigeration leaks. Submit a work order to repair any leaks found.

Measure running current for all motors and check if is on line of the manufacturer datasheet.

Clean area around equipment.

PM Checklist Page 3 of 3Printed Thursday, October 26, 2023 AS02AN

Asset Type: A/C, SPLIT SYSTEM

Description: AC SPLIT SYSTEM, CONDENSER HEAT PUMP

Frequency: Quarterly 0.5Estimated Time (hours):AS02QUCode:

(T)ools, (S)afety Equipment and (M)aterials

Mechanic's tool set, refrigeration system tools.1

Cleaning tools and materials, hose and water, fin comb.2

Rust removal materials, primer, paint.3

Lubricants, belts.4

Ladder.5

Safety Guidelines

Schedule work with operating personnel.1

Follow site safety rules for lockout and tagout.2

Be very careful when climbing roof access ladders.3

Review and follow the manufacturer’s instructions.4

Submit a work order if refrigerants need to be added.5

Report any problems you find.6

Record the results in the maintenance log.7

Maintenance Procedures

Lock and tag out unit.

Check with operating or area staff for problems.

Clean dust and dirt from entire unit and all ventilation ports.

Wash coils with water hose. Only use a coil cleaning solution if nothing else will work.

Inspect system for any signs of rust. Remove rust, prime with rust inhibitor, paint to match original condition. Rust must be completely removed down to base metal.

Clean blowers, fans, motors, drip pans and drain piping.

Check hold down bolts and grounding straps for tightness.

Grease shaft and motor bearings, if needed.

Clean area around equipment.

Remove locks and tags

PM Checklist Page 1 of 1Printed Thursday, October 26, 2023 AS02QU

Asset Type: BOILER, WATER

Description: Gas fired boilers. PM Procedures to be performed every year.

Frequency: Semi-Annual 8.00Estimated Time (hours):BO02ANCode:

(T)ools, (S)afety Equipment and (M)aterials

(T) Mechanic's tools1

(T) Cleaning materials2

Safety Guidelines

1. Follow site safety procedures and supervisor’s instructions.1

3. Use extreme caution when climbing access ladders.2

2. Schedule outage with operating personnel.3

4. Perform applicable lockout/tag out steps of site safety procedures.4

5. Lockout and disconnect the main power before tightening the main supply lugs in order to avoid the hazard of electrical shock, which could result in serious personal injury or death.

6. Record and report equipment damage or deficiencies.6

7. Review and follow the manufacturer’s O&M instructions.7

8. Record results in the equipment history log.8

9. Allow only qualified personnel to do maintenance work on this equipment.9

Maintenance Procedures

Monthly: PM procedures to be performed every month of the year

1. Check and note the mechanical water consumption

2. Check the automatic air purging valves or operate the manual air purging valves

3. Analyze the mechanical water and make up water for hardness

4. Boilers, piping and fume flue visual check

5. Clean the flame inspection window

6. Check the fumes temperature

7. Check the setpoint thermostat

8. Burner external visual check

9. Check the manometers on the gas line

10. Measure the gasand air pressure at the burner head

11. Clean the burner filter

12. Replace the burner lamps on the distribution panel

13. Check the distribution panel door

14. Drain and clean the dirt separators

15. Check the expansion tank

16. Check the thermometers and manometers for the proper operation

17. Check the condensate drain

18. Check the neutralizer device

19. Check the PH of the condensate from the fume flues

Semiannual: PM procedures to be performed every six months

1. Perform the fume analysis on boilers over 350 kw

2. Check the tightness of fume flues

3. Check the proper functioning of the fume flue

PM Checklist Page 1 of 2Printed Thursday, October 26, 2023 BO02AN

Description: Gas fired boilers. PM Procedures to be performed every year.

Frequency: Semi-Annual 8.00Estimated Time (hours):BO02ANCode:

4. Test the natural gas leak detection system

5. Test the manual reset of the automatedgas shut off valve

7. Open the burner head and check the integrity of all the parts

8. Thighten the electrical connections

9. Check and clean the natural gas noozles in the burner

10. Clean the natural gas filters before the burner

Annual: PM procedures to be performed every year

1. Clean the burner head

2. Clean the ignitors

3. Check the burner's fan

4. Clean the fan sheaves

5. Check the main valve on the natural gas line for proper operation

6. Test the minimum pressure switch

7. Check the maximum pressure switch

8. Check the maximum temperature switch

9. Open the boiler and check that the condensate water flows to the back of the boiler

10. Remove the turbulators an check their status

11. Clean the boiler's fume pipes

12. Clean the combustion chamber

13. Check the pressure in the combustion chamber

14. Check the gasket tighten of the boiler

15. Clean the pumps' filters

PM Checklist Page 2 of 2Printed Thursday, October 26, 2023 BO02AN

Description: Gas fired boilers. PM Procedures to be performed every month of the year.

Frequency: Monthly 2Estimated Time (hours):BO02MOCode:

(T)ools, (S)afety Equipment and (M)aterials

(T) Mechanic's tools1

(T) Cleaning materials2

Safety Guidelines

1. Follow site safety procedures and supervisor’s instructions.1

3. Use extreme caution when climbing access ladders.2

2. Schedule outage with operating personnel.3

4. Perform applicable lockout/tag out steps of site safety procedures.4

5. Lockout and disconnect the main power before tightening the main supply lugs in order to avoid the hazard of electrical shock, which could result in serious personal injury or death.

6. Record and report equipment damage or deficiencies.6

7. Review and follow the manufacturer’s O&M instructions.7

8. Record results in the equipment history log.8

9. Allow only qualified personnel to do maintenance work on this equipment.9

Maintenance Procedures

Monthly: PM procedures to be performed every month of the year

1. Check and note the mechanical water consumption

2. Check the automatic air purging valves or operate the manual air purging valves

3. Analyze the mechanical water and make up water for hardness

4. Boilers, piping and fume flue visual check

5. Clean the flame inspection window

6. Check the fumes temperature

7. Check the setpoint thermostat

8. Burner external visual check

9. Check the manometers on the gas line

10. Measure the gasand air pressure at the burner head

11. Clean the burner filter

12. Replace the burner lamps on the distribution panel

13. Check the distribution panel door

14. Drain and clean the dirt separators

15. Check the expansion tank

16. Check the thermometers and manometersfor the proper operation

17. Check the condensate drain

18. Check the neutralizer device

19. Check the PH of the condensate from the fume flues

PM Checklist Page 1 of 1Printed Thursday, October 26, 2023 BO02MO

Description: Gas fired boilers. PM Procedures to be performed every six months.

Frequency: Monthly 6Estimated Time (hours):BO02SACode:

(T)ools, (S)afety Equipment and (M)aterials

(T) Mechanic's tools1

(T) Cleaning materials2

Safety Guidelines

1. Follow site safety procedures and supervisor’s instructions.1

3. Use extreme caution when climbing access ladders.2

2. Schedule outage with operating personnel.3

4. Perform applicable lockout/tag out steps of site safety procedures.4

5. Lockout and disconnect the main power before tightening the main supply lugs in order to avoid the hazard of electrical shock, which could result in serious personal injury or death.

6. Record and report equipment damage or deficiencies.6

7. Review and follow the manufacturer’s O&M instructions.7

8. Record results in the equipment history log.8

9. Allow only qualified personnel to do maintenance work on this equipment.9

Maintenance Procedures

Monthly: PM procedures to be performed every month of the year

1. Check and note the mechanical water consumption

2. Check the automatic air purging valves or operate the manual air purging valves

3. Analyze the mechanical water and make up water for hardness

4. Boilers, piping and fume flue visual check

5. Clean the flame inspection window

6. Check the fumes temperature

7. Check the setpoint thermostat

8. Burner external visual check

9. Check the manometers on the gas line

10. Measure the gasand air pressure at the burner head

11. Clean the burner filter

12. Replace the burner lamps on the distribution panel

13. Check the distribution panel door

14. Drain and clean the dirt separators

15. Check the expansion tank

16. Check the thermometers and manometersfor the proper operation

17. Check the condensate drain

18. Check the neutralizer device

19. Check the PH of the condensate from the fume flues

Semiannual: PM procedures to be performed every six months

1. Perform the fume analysis on boilers over 350 kw

2. Check the tightness of fume flues

3. Check the proper functioning of the fume flue

PM Checklist Page 1 of 2Printed Thursday, October 26, 2023 BO02SA

Description: Gas fired boilers. PM Procedures to be performed every six months.

Frequency: Monthly 6Estimated Time (hours):BO02SACode:

4. Test the natural gas leak detection system

5. Test the manual reset of the automatedgas shut off valve

7. Open the burner head and check the integrity of all the parts

8. Thighten the electrical connections

9. Check and clean the natural gas noozles in the burner

10. Clean the natural gas filters before the burner

PM Checklist Page 2 of 2Printed Thursday, October 26, 2023 BO02SA

Asset Type: Pump, Booster

Description: PUMP ,Booster, recirculation, Centrifugal, Condenser.

Frequency: Annual 1Estimated Time (hours):BP84ANCode:

(T)ools, (S)afety Equipment and (M)aterials

Mechanics/Electricians tool set.1

Ball or roller bearing grease with grease gun.2

High temperature, electric motor grease with grease gun.3

Cleaning materials.4

Meggar.5

Multimeter.6

Safety Guidelines

Perform applicable lockout/tagout steps of site safety procedures.1

Schedule outage with operating personnel.2

Follow site safety procedures and your supervisor instructions.3

Record and report equipment damage or deficiencies.4

Obtain and review manufacturer operation and maintenance instructions.5

All tests shall conform to the manufacturer test procedures and standard values.6

Maintenance Procedures

Semi-Annual procedure

Tag out unit.

Clean accumulated dirt and grime from pump casing, shaft coupling, and motor.

Inspect electrical wiring, motor, and controls for signs of over-heating, broken insulation, loose or corroded connections, or damaged conduit.

Check for evidence of leaks.

Check alignment of coupling and security of base-plate mounting bolts.

Clean and inspect pump.

Lubricate pump (if applicable).

Operational test of the circulating pump.

Start pump. Check flanges and fittings for leaks.

Check for unusual noise or vibration.

Return the unit to service.

Annual procedure

Check the motor.

Inspect electrical wiring, motor, and controls for signs of over-heating, broken insulation, loose or corroded connections, or damaged conduit.

Check running current and voltage for each phase, record results.

PM Checklist Page 1 of 1Printed Thursday, October 26, 2023 BP84AN

Asset Type: PUMP, BOOSTER

Description: PUMP ,Booster, recirculation, Centrifugal, Condenser.

Frequency: Semi-Annual 0.5Estimated Time (hours):BP84SACode:

(T)ools, (S)afety Equipment and (M)aterials

Mechanics tool set.1

Ball or roller bearing grease with grease gun.2

High temperature, electric motor grease with grease gun.3

Cleaning materials.4

Safety Guidelines

Perform applicable lockout/tagout steps of site safety procedures.1

Schedule outage with operating personnel.2

Follow site safety procedures and your supervisor instructions.3

Record and report equipment damage or deficiencies.4

Obtain and review manufacturer operation and maintenance instructions.5

All tests shall conform to the manufacturer test procedures and standard values.6

Maintenance Procedures

Tag out unit.

Clean and inspect pump.

Clean accumulated dirt and grime from pump casing, shaft coupling, and motor.

Inspect electrical wiring, motor, and controls for signs of over-heating, broken insulation, loose or corroded connections, or damaged conduit.

Check for evidence of leaks.

Check alignment of coupling and security of base-plate mounting bolts.

Lubricate pump (if applicable).

Operational test of the circulating pump.

Start pump. Check flanges and fittings for leaks.

Check for unusual noise or vibration.

Return the unit to service.

PM Checklist Page 1 of 1Printed Thursday, October 26, 2023 BP84SA

Description: AIR COOLED CHILLER

Frequency: Annual 9.5Estimated Time (hours):CH14ANCode:

(T)ools, (S)afety Equipment and (M)aterials

Mechanic Tool Set. Refrigeration tools.1

Pressure washer.2

Fin comb.3

Cleaning materials.4

Personal protective equipment (PPE) for handling refrigerants.5

Compressor oil.6

Oil filter.7

Access ladder.8

Halide Leak Detector,9

Electronic Leak Detector,10

Ultrasonic Noise Detector11

Tube Plugging Kit, Oil Filter12

Safety Guidelines

Schedule work with operating personnel.1

Follow site safety rules for lockout and tagout.2

Be very careful when climbing roof access ladders.3

Review and follow the manufacturer’s instructions.4

Follow safety and environmental rules for refrigerants.5

Don't vent refrigerants. Refrigerants must be recovered.6

Submit a work order if refrigerants need to be added.7

Report any problems you find.8

Record the results in the maintenance log.WARNING: EXTREME PRESSURE OR VACUUM MAY BE

PRESENT.

Maintenance Procedures

Monthly Procedure

Check head pressure.

Check suction pressure.

Check discharge pressure

Check chill water - intake.

Check operating temperatures.

Switch primary/secondary compressors and pumps.

Check hot gas bypass valve.

Check thermostatic expansion valve.

Check refrigerant level.

Check liquid line sight glass/moisture indicator.

Check water lines.

Check compressor and heaters for proper operation

PM Checklist Page 1 of 2Printed Thursday, October 26, 2023 CH14AN

Description: AIR COOLED CHILLER

Frequency: Annual 9.5Estimated Time (hours):CH14ANCode:

Check compressor superheat on evaporator and economizer TXVs. Adjust as required

Check condenser coil for dyrt/debris and clean if necessary

Check operation of all controls

Replace burned out indicator light

Semi-Annual Procedure

Check Programmable operating set points and safety cutouts and make sure they are correct for the operation

Check compressor and heaters for proper operation

Check compressor super heat on evaporator and economizer TXVs. Adjust as required

Check condenser and economizer subcooling. Adjust as required

Leak check the chiller. Submit work order to find and repair leaks.

Annual Procedure

Clean tubes and test for leakage.

Calibrate chiller control system, load limiting system, and safety controls.

Check compressor oil on semi-hermetic compressors. Take oil samples and submit for analysis.

Replace oil filter, clean oil line strainer.

Check oil level in oil separator sight glass.

Clean and inspect the chiller:

Clean the condensing unit. Remove debris from air screen and clean underneath unit. Clear drain line and pan from sludge or debris.

Inspect system for signs of rust. Remove rust, prime with rust inhibitor, paint to match original condition. Carefully inspect all fasteners to ensure integrity and replace any which have rusted. All replacement components, parts, and materials should

Pressure wash coil with coil cleaning solution. Straighten fin tubes with fin comb.

Check and clean fan motors.

Clean water strainers.

Cycle all valves two times.

Check electrical circuits:

Check all electrical connections for tightness.

Inspect condition of electrical contacts on motor starters and controls. Check electrical connections for tightness.

Relamp as necessary.

Perform operational test and return to service.

Check controller for proper operation.

Check programmable operating setpoints and safety cutouts and make sure they are correct for the operation.

Remove debris from work-site.

PM Checklist Page 2 of 2Printed Thursday, October 26, 2023 CH14AN

Description: AIR COOLED CHILLER

Frequency: Monthly 0.5Estimated Time (hours):CH14MOCode:

(T)ools, (S)afety Equipment and (M)aterials

Mechanic tool set. Refrigeration tools.1

Rags and cleaning materials.2

Refrigerant leak tester.3

Replacement lamps4

Access ladder.5

Personal protective equipment (PPE) for handling refrigerants.6

Rags.7

Safety Guidelines

Schedule work with operating personnel.1

Follow site safety rules for lockout and tagout.2

Be very careful when climbing roof access ladders.3

Review and follow the manufacturer’s instructions.4

Follow safety and environmental rules for refrigerants.5

Don't vent refrigerants. Refrigerants must be recovered.6

Submit a work order if refrigerants need to be added.7

Report any problems you find.8

Record the results in the maintenance log.WARNING: EXTREME PRESSURE OR VACUUM MAY BE

PRESENT.

Maintenance Procedures

Check head pressure.

Check suction pressure.

Check discharge pressure

Check chill water - intake.

Check operating temperatures.

Switch primary/secondary compressors and pumps.

Check hot gas bypass valve.

Check thermostatic expansion valve.

Check refrigerant level.

Check oil level in oil separator sight glass.

Check for leaks all lines.

Check liquid line sight glass/moisture indicator.

Check water lines.

Check condenser coils for dirt/debris and clean if necessary.

Check operation of all controls.

Replace burned out indicator lights.

PM Checklist Page 1 of 1Printed Thursday, October 26, 2023 CH14MO

Description: AIR COOLED CHILLER

Frequency: Semi-Annual 1.5Estimated Time (hours):CH14SACode:

(T)ools, (S)afety Equipment and (M)aterials

Mechanic tool set. Refrigeration tools.1

Rags and cleaning materials.2

Refrigerant leak tester.3

Replacement lamps4

Access ladder.5

Personal protective equipment (PPE) for handling refrigerants.6

Rags.7

Safety Guidelines

Schedule work with operating personnel.1

Follow site safety rules for lockout and tagout.2

Be very careful when climbing roof access ladders.3

Review and follow the manufacturer’s instructions.4

Follow safety and environmental rules for refrigerants.5

Don't vent refrigerants. Refrigerants must be recovered.6

Submit a work order if refrigerants need to be added.7

Report any problems you find.8

Record the results in the maintenance log.WARNING: EXTREME PRESSURE OR VACUUM MAY BE

PRESENT.

Maintenance Procedures

Monthly procedure

Check head pressure.

Check suction pressure.

Check discharge pressure

Check chill water - intake.

Check operating temperatures.

Switch primary/secondary compressors and pumps.

Check hot gas bypass valve.

Check thermostatic expansion valve.

Check refrigerant level.

Check oil level in oil separator sight glass.

Check for leaks all lines.

Check liquid line sight glass/moisture indicator.

Check water lines.

Check condenser coils for dirt/debris and clean if necessary.

Check operation of all controls.

Replace burned out indicator lights.

Semi-Annual Procedure

PM Checklist Page 1 of 2Printed Thursday, October 26, 2023 CH14SA

Description: AIR COOLED CHILLER

Frequency: Semi-Annual 1.5Estimated Time (hours):CH14SACode:

Check programmable operating setpoints and safety cutouts and make sure they are correct for the operation.

Check compressor and heaters for proper operation.

Check compressor superheat on evaporator and economizer TXVs. Adjust as required.

Check condenser and economizer subcooling. Adjust as required.

Leak check the chiller. Submit work order to find and repair leaks.

PM Checklist Page 2 of 2Printed Thursday, October 26, 2023 CH14SA

Description: ADSORPTION CHILLER ECO MAX

Frequency: Annual 3.5Estimated Time (hours):CH20ANCode:

(T)ools, (S)afety Equipment and (M)aterials

Mechanic tool set.1

Cleaning materials.2

Distilled or purified water (refrigerant).3

Vacuum compressor oil. (IDEMITSU DAPHNE SUPERACEPACK 68)4

Safety Guidelines

Schedule work with operating personnel.1

Check with operating personnel for deficiencies.2

Follow site safety procedures and your supervisor’s instructions.3

Obtain and review manufacturer's instructions.4

Report any problems you find.5

Record the results in the equipment history log.6

Maintenance Procedures

Chiller:

Check door seals for damage.

Check refrigerant level. Charge up to the centerline of the sight glass if required. Maintain a log of refrigerant added.

Wipe down unit and check for air or refrigerant leaks or other damage.

Refrigerant Pump:

Inspect and record bearing status on the Bearing Monitor.

Valves:

Cycle butterfly valves and make sure they operate smoothly and function sufficiently.

Evaluate butterfly valve seats and actuator seals for replacement. Submit a work order if replacement is necessary.

Variable Speed Drive:

Check unit for damage or signs of overheating.

Check the main circuit and control circuits for tightness and signs of damage or overheating.

Check that unit is mounted securely.

Check cooling fan for proper operation. Check and clean the heat sink, intake and exhaust ports for clogging and foreign matter.

Evaluate the cooling fan for replacement. Expected life is 61,000 hours. The hours can be checked on the inverter display.

Evaluate the DC link bus capacitor and electrolytic capacitor on the printed circuit board. Expected life is 61,000 hours. The hours can be checked on the inverter display.

Electrical Controls and Connections:

Check all electrical controls and connections for damage and tightness.

Operational Status:

Check all control panel settings. Record and evaluate all alarms.

PM Checklist Page 1 of 1Printed Friday, October 27, 2023 CH20AN

Description: ADSORPTION CHILLER ECO MAX

Frequency: Quarterly 1.5Estimated Time (hours):CH20QUCode:

(T)ools, (S)afety Equipment and (M)aterials

Mechanic tool set.1

Cleaning materials.2

Distilled or purified water (refrigerant).3

Vacuum compressor oil. (IDEMITSU DAPHNE SUPERACEPACK 68)4

Safety Guidelines

Schedule work with operating personnel.1

Check with operating personnel for deficiencies.2

Follow site safety procedures and your supervisor’s instructions.3

Obtain and review manufacturer's instructions.4

Report any problems you find.5

Record the results in the equipment history log.6

Maintenance Procedures

Chiller:

Check door seals for damage.

Check refrigerant level. Charge up to the centerline of the sight glass if required. Maintain a log of refrigerant added.

Wipe down unit and check for air or refrigerant leaks or other damage.

Refrigerant Pump:

Inspect and record bearing status on the Bearing Monitor.

Valves:

Cycle valves and make sure they operate smoothly and function sufficiently.

Variable Speed Drive:

Check unit for damage or signs of overheating.

Operational Status:

Check all control panel settings. Record and evaluate all alarms.

PM Checklist Page 1 of 1Printed Friday, October 27, 2023 CH20QU

Asset Type:

Description: Chancery chillers monthly maintenance.

Frequency: 4Estimated Time (hours):CHAC02MOCode:

(T)ools, (S)afety Equipment and (M)aterials

(T) Mechanic Tool Set. Refrigeration tools.1

(T) Fin comb.2

(T) Pressure water.3

(T) Cleaning materials.4

(S) Personal protective equipment (PPE) for handling refrigerants.5

(M) Compressor oil.6

(M) Oil filter.7

(T) Access ladder.8

(T) Halide leak detector.9

(T) Electronic leak detector.10

(T) Ultrasonic noise detector.11

(T) Tube plugging kit, oil filter.12

(T) Megger.13

Safety Guidelines

1. Schedule work with operating personnel.1

2. Follow site safety rules for lockout and tagout.2

3. Be very careful when climbing roof access ladders.3

4. Review and follow the manufacturer's instructions.4

5. Don't vent refrigerants. Refrigerants must be recovered.5

6. Follow safety and environmental rules for refrigerants.6

7. Submit a work order if refrigerants need to be added.7

8. Report any problems you find.8

9. Record the results in the maintenance log. WARNING: EXTREME PRESSURE OR VACUUM MAY BE

PRESENT.

Maintenance Procedures

Monthly procedures:

Conduct a visual inspection.

Check compressor lubrication system.

Check oil lines temperature.

Check water (refrigerant) coolant temperature.

Check oil appearance and level.

Check suction pressure.

Check discharge pressure.

Check chilled water - intake.

Switch primary/secondary compressors and pumps.

Check hot gas bypass valve.

Check thermostatic expansion valve.

Check refrigerant level.

PM Checklist Page 1 of 2Printed Friday, December 1, 2023 CHAC02MO

Description: Chancery chillers monthly maintenance.

Frequency: 4Estimated Time (hours):CHAC02MOCode:

Check condensers performance.

PM Checklist Page 2 of 2Printed Friday, December 1, 2023 CHAC02MO

Description: Chancery chillers quarterly maintenance.

Frequency: 6Estimated Time (hours):CHAC02QUCode:

(T)ools, (S)afety Equipment and (M)aterials

(T) Mechanic tool set. Refrigeration tools.1

(T) Pressure washer.2

(T) Fin comb.3

(T) Cleaning materials.4

(S) Personal protective equipment (PPE) for handling refrigerants.5

(M) Compressor oil.6

(M) Oil filter.7

(T) Access ladder.8

(T) Halide leak detector.9

(T) Electronic leak detector.10

(T) Ultrasonic noise detector.11

(T) Tube plugging kit, oil filter.12

(T) Megger.13

Safety Guidelines

1. Schedule work with operating personnel.1

2. Follow site safety rules for lockout and tagout.2

3. Be very careful when climbing roof access ladders.3

4. Review and follow the manufacturer's instructions.4

5. Follow safety and environmental rules for refrigerants.5

6. Don't vent refrigerants. Refrigerants must be recovered.6

7. Submit a work order if refrigerants need to be added.7

8. Report any problems you find.8

9. Record the results in the maintenance log. WARNING: EXTREME PRESSURE OR VACUUM MAY BE

PRESENT.

Maintenance Procedures

Monthly procedures:

Conduct a visual inspection.

Check compressor lubrication system:

Check oil lines temperature.

Check water (refrigerant) coolant temperature.

Check oil appereance and level.

Check suction pressure.

Check discharge pressure.

Check chilled water - intake.

Switch primary/secondary compressors and pumps.

Check hot gas bypass valve.

Check thermostatic expansion valve.

PM Checklist Page 1 of 2Printed Thursday, October 26, 2023 CHAC02QU

Description: Chancery chillers quarterly maintenance.

Frequency: 6Estimated Time (hours):CHAC02QUCode:

Check condenses performance.

Quarterly procedures:

Check motor phase current balance (within 10%).

Check motor temperature.

Check oil cooler solenoid operation.

Operate the compressor load vanes manual switch and record motor phase phase currents values.

Operate the compressor unload vanes manual switch and record motor phase currents values.

Alarm relay operational check.

Pump interlocks operational check.

Hot and cold oil temperature switched operational check.

Guardistor and surgeguard relays operational check.

High and low pressure switches operational check.

High suction temperature switches operational check.

High discharge temperature switches operational check.

Low pressure override switch operational check.

Oil pump pressure differential switch operational check.

Oil pump safety timer operational check.

Oil pump time delay switch operational check.

System monitor timer operational check.

Vanes closed switch operational check.

Test condenser water quality.

Test evaporator water quality.

Expansion valves operational test (super heat control).

Check compressor fittings and terminals.

Check for refrigerant leaks.

Check pump fittings.

Check oil pump joints and fittings.

Check vessel relief valves.

Conduct a vibration isolation test.

Examine starter contactors (hardware and operation).

Verify overload setting and trip.

Test starter electrical connections.

Pump down control operational check.

Hot gas bypass controls operational check.

Liquid injections controls operational check.

PM Checklist Page 2 of 2Printed Thursday, October 26, 2023 CHAC02QU

Description: Chancery chillers semi-annual maintenance.

Frequency: 8Estimated Time (hours):CHAC02SACode:

(T)ools, (S)afety Equipment and (M)aterials

(T) Mechanic tool set. Refrigeration tools.1

(T) Pressure washer.2

(T) Fin comb.3

(T) Cleaning materials.4

(S) Personal protective equipment (PPE) for handling refrigerants.5

(M) Compressor oil.6

(T) Oil filter.7

(T) Access ladder.8

(T) Halide leak detector.9

(T) Electronic leak detector.10

(T) Ultrasonic noise detector.11

(T) Tube plugging kit, oil filter.12

(T) Megger.13

Safety Guidelines

1. Schedule work with operating personnel.1

2. Follow site safety rules for lockout and tagout.2

3. Be very careful when climbing roof access ladders.3

4. Review and follow the manufacturer's instructions.4

5. Follow safety and environmental rules…