AC & Refrigeration PPM checks - ABM - duplicate

• AC & Refrigeration PPM checks - ABM

• Client / Site

• Conducted on

  Date

• Prepared by

• Location
  Address

Compressor Checks

• Ensure LT liquid injection is operating

• Ensure all compressor fixings are in line with the manufacturers instructions

• Check the tightness of the Rota lock service valve connection on the compressor body

• Check the crankcase heater is operational when the compressor is not running

• Supply details of any faults found during the compressor checks

• Supply photos of compressor faults identified

  Media

Oil system checks

• Check the compressor and reservoir oil levels are sufficient.

• Take an oil sample (one shot test) and send for analysis

• Photo of oil sample

  Media

• Using a differential or calibrated gauge, check the pressure differential between the suction and reservoir for coalescent separators, check pressure drop across internal filter

• List any defects identified during the oil checks

• Supply photos of faults identified

  Media

System & Pack Control Switches, controllers, controlls

• Check & test all pressure switches (high pressure, low pressure & oil differential)

• Trip the main plant controller power circuit

• Using a calibrated gauge, check suction and pressure transducers are reading correctly, calibrate as required

• List any defects highlighted during the system & pack control checks

• Supply photos of faults identified

  Media

Filters & driers checks

• Check for pressure drops across filter

• List defects to filters & driers

• Supply photos of any faults found

  Media

Pressure Vessel checks

• Visually inspect all the pressure vessels in line with PSSR regs

• Ensure there are no signs of corrosion

• List any defects to the pressure vessels

• Supply photos of pressure vessel faults

  Media

PRV checks

• Check PRV's are in date

• List expiry dates for all PRVs

• Supply pictures of PRV's

  Media

Pipe work and inline components

• Check for visual damage, evidence of oil seepage

• Check pipe insulation fits & intact

• Check all flexible lines & capillaries for evidence of oil seepage

• List any pipe work defects

• Supply photos of defects to pipework or components

  Media

Electrical Panels and Switch gear, control panels

• Check the condition and functionality of all external illuminated indicators

• Check all internal cable management including conduit, trunking and tray work

• Ensure security and continuity of bonding to all extraneous metalwork and sub circuit components / panel to panel and to point of supply

• Check all bonding straps to all doors

• List identified issues with electrical panels & switch gear, control panels

• Photos of electrical panels & switch gear defects

  Media

Electrical panels and switch gear, control panels

• Check that electrical panel door isolator / interlock is functional

• Check panel keys are present

• Ensure panel fans are operational and clean internal panel filter

• Check for signs of overheating or arcing on all internal panel components

• List defects identified during electrical checks

• Attach photos of electrical defects identified

  Media

Condenser checks

• Check the system logs for evidence of increased head pressure that cannot be explained by ambient conditions, blocked condenser fins or other external factors

• Check the condition of the condenser fins for signs of corrosion and rot (inclusive of support structures)

• Blow through with OFN to clear any Leigh debris

• Is a deep clean with pressure washer required to clean condensers?

  Yes

  No

  N/A

• Degrease with chemical cleaner & flush with water

• Ensure all condenser control circuits and contractors are functioning and fans are free running including directional rotation checks.

• Visually inspect to ensure all condenser fan fixings are in place and secure

• If using EC fan motors, ensure the fan speed is varying as required

• Where multiple non EC fan motors are being used, ensure the motors are staging as required

• List condenser check defects

• Photos of condenser defects & photo of condenser on completion

  Media

Display Cases, defrost heaters

• Where fitted, check the operation of the defrost heaters

• Check the control set points match the manufacturers instructions

• Check all joints between cabinets where multiplexed check all end walls are sealed to the cabinet

• Check all drain pumps for leaks or blockages inside and underneath the cabinets

• Ensure that all fixtures are visible and available on the store and remote networks

• Ensure all earth bonding and straps are in place and secure.

• Condition of electrical control box and components, including all cable management, conduit, trunking and tray work.

• Check correct operation and ensure integrity of tracks, retainers, fixings, rollers, air strings, slow close mechanism and frames conform

• List display cabinet fabric defects, water leaks, seals, etc

• Photo of display cabinet defects

  Media

Cold store

• Where fitted, check the operation of the defrost heaters

• Trace heaters, where fitted, check the operation

• Check the control set points match the manufacturers settings

• Ensure that fixture alarms are visible and available on the stores remote networks

• Ensure all earth bonding and strps are in place and secure

• Check the condition of the electrical control box, components, cable management, trunking, tray work & conduit

• Check walls and ceiling panels for signs of delamination

• Check walls and ceiling panels and floors for any signs of wear or damage

• Check the evaporator fins for any signs of damage or deformation of the distributor, ensure inspection end plate is correctly fitted.

• Ensure that all entrapment and asphyxiated protection alarms are functional.

• List any cold store related issues

• Supply photos of pictures identified in defect list for cold store

  Media

Temperature alarm panels

• Check temp alarm panels can see all connected fixtures

• Check the temp alarm can dial out to the alarm bureau

• List any temperature alarm faults / issues

• Photos of issues identified with the alarm panel

  Media

HVAC A/C Equipment

• Indoor unit air filter, check & clean

• Condensate tray - check pipe connections, mountings & tighten as necessary

• Check the condensate away system for blockage or dirt

• Check pump activation switch condensate tray

• Indoor unit - heat exchanger and refrigeration connections, check for contamination. Clean as necessary. Check defrost in cooling mode operates correctly.

• Controllers - check operation in all modes, investigate and attempt fix on any faults

• Outdoor equipment - compressor running noise, check for abnormal noise.

• Outdoor / Indoor unit fan & motor. Running noise, check for abnormal noise. Clean fan

• Outdoor / indoor unit- measure winding resistance / insulation integrity of fans / compressors

• Outdoor unit heat exchanger and refrigeration connections. Check operation, investigate any faults system. Check defrost activation in heating mode

• Outdoor unit - check for oil quality / contamination. Clean as required

• Outdoor unit - check for oil quality / contamination. Clean where possible

• Electrical - check tightness of terminals, tighten as necessary. Check correct operation of all switches and interlocks

• Measure and record the operating currents of all components. Please enter results below

• Lubricate all panel locks and hinges

• Enter any defects highlighted during the AC checks

• Photos of AC defects

  Media

• Please list any additional information supporting these PPM checks, any restrictions preventing a full completion & any H&S issues requiring urgent attention

• Have you completed the FGAS Leak check?

• Engineers Summary

• Customers Signature

  Sign

• Engineers Signature

  Sign