Ingersoll Rand Compressor R90

Warning: This cleaning procedure requires trained personnel with PPE!

A periodic inspection and maintenance program should be implemented for water cooled heat exchangers.

It is recommended that you contact Ingersoll Rand for cleaning services should you not have experience and equipment to do this work.

Are water inlet lines inspected?

Are strainers replaced or cleaned as required?

Mineral scale may be removed with a suitable de-scaling agent containing amidosulphuric acid + citric acid and Neutralit solutions for cleaning the coolers.

As an alternative, any weak acid mixed with water in the ratio of 1:4 may be used.

Fouling should be removed with a suitable detergent in hot water.

Cleaning / Installing Package Pre-Filter

Unlatch the two 1/4 turn latches and open the intake panel (panel is hinged)

Remove the six wing nuts and flat washers.

Center the new element over the package intake opening. Also note that the filter is washable with mild detergent.

Push the filter over the grill studs so that the studs poke through the filter media.

Install the six wing nuts and flat washers.

Warning: Ensure the compressor is electrically isolated for at least 15 minutes, before commencing any maintenance work.

Is the compressor isolated from the system and fully discharged the compressed air within the compressor?

Upload a photo of the tube removed from the fitting located on the bottom of the moisture separator.

Is the bowl of the moisture trap removed?

Upload a photo of the cleaned bowl of the moisture trap.

Is the bowl of the moisture trap replaced?

Sign off on the condensate drain maintenance

It is recommended that the discharge temperature sensor (2ATT) is checked regularly as follows:

a. For air cooled compressors, stop the cooling blower by opening the blower / fan motor circuit breaker.

b. For water cooled compressors, shut off the cooling water.

The compressor should trip at 109 °C (228 °F). A trip warning will appear on the controller display.

Air compressor operating temperatures will be higher than normal if the external passages between the fins of the cooler cores become restricted with foreign material. Regular cleaning of the cooler surfaces will support the reliable operation of the air compressor system, improve the life of the compressor coolant and improve overall compressor efficiency.

When performed frequently as determined by site conditions and airborne contamination, more significant cleaning or replacement may not be necessary.

2. Isolate the compressor from the system.

3. Press the emergency stop to vent the separator tank and airend.

Fixed speed compressors can take more than two minutes to fully de-pressurize once stopped.

4. Ensure that the main power disconnect switch is locked off and tagged.

For any required lifting of air compressor parts or required tools, always use the proper certified lifting equipment, and employ sound working principles.