AMS Co-op Summer PPM

Ensure all compressor contactors are functioning correctly

Ensure LT liquid injection is operating. Repair as required

Ensure all compressor fixings are secure in line with the manufacturer's instructions. Repair as required

Check the tightness of the Rota Lock service valve connection on to the compressor body. Use manufacturer's settings

Check the crankcase heater is operational when the compressor is not running. Repair as required

Check the compressor and reservoir oil levels are sufficient. Top up to manufacturers recommendations

Take an oil sample (one shot test)

Using a differential or calibrated gauge, check the pressure differential between the suction and reservoir for coalescent separators, check pressure drop across internal filter. /replace/repair for optimal performance to manufacturers requirements

Check and test all pressure switches. (High Pressure, Low Pressure and oil differential switches) Replace/repair defective devices

Check the main plant controller power circuit and ensure the plant switches to its back up system

Check all plant set points and parameters against commissioning data and/or manufacturers strings. Apply corrections as required

Check suction and discharge pressure transducers are reading correctly, Calibrate or replace as required

Liquid line drier - Remove and replace liquid line drier cores

Visually inspect all the pressure vessels in line with PSSR regulations. Report any defects to the customer

Check there are no signs of corrosion

Check for visual damage and no evidence of oil seepage

Check pipe insulation fits and is intact

Check all flexible lines and capillaries for evidence of oil seepage

Check the condition and functionality of all external illuminated indicators

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

Check security and continuity of bonding to all extraneous metalwork and sub circuit components/panel to panel and to point of supply. including fly leads to panel doors

Check that electrical panel door isolator/interlock is functional and repair if necessary

Check and replace missing panel keys

Ensure panel fans are operational and clean internal panel filter

Check for signs of overheating or arcing on all internal panel components. Repair/replace components as required

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

Condenser Condition - Check the condition of the condenser fins for signs of corrosion and rot (Inclusive of support structures)

Condenser Fans - Ensure all condenser control circuits and contactors are functioning and fans are free running including directional rotation check. Correct any defects as required

Condenser Fans - Visually inspect to ensure all condenser fan fixings are in place and secure. Repair/replace as required

Condenser Fans - If using EC fan motors, ensure the fan speed is varying as required. Correct any irregular speed outputs

Condenser Fans - Where multiple non EC fan motors are being used, ensure the motors are staging as required. Correct any defects

Defrost Heaters - Where fitted, check the operation of the defrost heaters. Repair/replace as required

Control Set Points - Check that the control set points match the manufacturer's instructions. Correct as necessary

Alarm Monitor - Ensure that all fixtures are visible and available on the RDM panel

Electrical System Integrity - earthing - Ensure all earth bonding and straps are in place and secure. Repair as required

Electrical System Integrity - Condition of electrical control box and components, including all cable management, conduit, trunking and tray work. Repair a required.

Door Sliding - Check correct operation and ensure integrity of tracks retainers/fixings, rollers, air-strings, slow-close mechanism and frames conform to manufacturers' specification. Repair or adjust as required

Doors Swing/Hinged - Check correct operation and ensure integrity of hinges, hinge plates, retainers/fixings and handles, slow-close mechanism and frames conform to manufacturers specification. Repair or adjust as required

Condensate Tray - Check pipe connections, mountings,Check pump operation, Replace if necessary

Condensate Tray - Check all electrical connection for signs off moisture ingress repair or replaces as necessary.

Defrost Heaters - Where fitted, check the operation of the defrost heaters. Replace if required

Trace Heaters - Where fitted, check the operation of the drain pan defrost heaters. Replace if required

Control Set Points - Check that the control set points match the manufacturer's instructions. Correct as required

Alarm Monitor - Ensure that all fixtures are visible and available on the RDM panel.

Electrical System Integrity - earthing - Ensure all earth bondings and straps are in place and secure. Repair as required

Electrical System Integrity - Condition of electrical control box and components, including all cable management, conduit, trunking and tray work. Repair as required

Fabric - Check walls and ceiling panels for signs of delamination. Report any defects to the Customer

Fabric - Check walls and ceiling panels and floors or any signs of wear or damage. Report any defects to the Customer

Entrapment Alarms - Ensure that all entrapment and Asphyxiate protection alarms are functional. Repair/replace any defective items

Check temperature alarm panels can see all connected fixtures

Check temperature alarm panel can dial out.

Change back-up batteries in line with the Manufacturer's instructions

Condensate Tray - Check pipe connections, mountings. Tighten as necessary

Check pump activation Switch condensate tray. Replace if necessary

Controllers - check operation in all modes, investigate and fix any faults. Replace as necessary

Outdoor Unit - Compressor Running Noise. Check for Abnormal Noise. Repair/Replace as necessary

Outdoor/Indoor unit Fan & Motor. Running Noise, check fir abnormal noise. Clean Fan. Replace Motor as required

Outdoor/Indoor Unit - Measure Winding Resistance/Insulation integrity of fans/compressors

Outdoor Unit heat exchanger and refrigeration connections. Check operation, investigate and fix any faults system. Check defrost activation in heating mode and repair as required

Outdoor Unit - check for oil quality/contamination. Clean or replace as necessary

Electrical - Check tightness of terminals. Tighten a necessary. Check correct operation of all switches and interlocks.

Measure and record the operating currents of all components

Lubricate with suitable lubricant all panel locks and hinges

Check all PRVs are in date with the correct pressure rating and are date,tagged.