Ingersoll-Rand R55 Product Information

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80446339

Revision B

October 2012

Save These Instructions

Contact-Cooled Rotary Screw Air Compressor

Product Information

R37-160

110812.16.23

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Table of Contents

Other manuals for Ingersoll-Rand R55

Manual276 pages

Product Maintenance Information32 pages

Questions and Answers:

B
Brian StevensAug 23, 2025
How to troubleshoot Ingersoll-Rand R55 that will not start?
- J
  John HarrisAug 23, 2025
  If your Ingersoll-Rand Air Compressor will not start, it could be due to several reasons: * There may be no power supply. Ensure the power is switched on. If it is, contact a qualified electrician. * There may be a controller failure. Check the supply to the controller and replace it if necessary. * There may be a starter failure. Isolate the supply, lock it off, tag it, and replace the failed component. Alternatively, contact your local Ingersoll Rand representative.
T
Tammy MeyerSep 3, 2025
Why is pressure too high in Ingersoll-Rand Air Compressor because speed is not reducing?
- M
  Michael PerrySep 3, 2025
  If the pressure produced by your Ingersoll-Rand Air Compressor is too high because the speed isn't reducing as demand decreases: * The controller settings may be incorrect. Check and modify the settings. * The pressure transducer may be faulty, incorrectly calibrated, or not receiving a pressure signal. Recalibrate or replace it.
K
Kathryn GibbsSep 2, 2025
What to do if discharge air is contaminated with coolant in Ingersoll-Rand Air Compressor?
- J
  justin81Sep 2, 2025
  If the discharge air from your Ingersoll-Rand Air Compressor is contaminated with coolant: * Check if the scavenge pipe is blocked or broken, or if the o-ring is not sealing. Clean or replace as necessary. * Inspect the separator element for punctures, incorrect installation, the need for replacement, or incorrect sealing. Replace if needed. * If incorrect coolant has been added, drain the system, check for damage, clean, and refill with the correct coolant. * If the system has been overfilled with coolant, check for damage and drain the excess.
D
David LloydSep 1, 2025
What causes high airend discharge temperature in Ingersoll-Rand Air Compressor?
- E
  Edwin WrightSep 1, 2025
  High airend discharge temperature in your Ingersoll-Rand Air Compressor can be caused by: * Compressor operating above rated pressure: Check and modify settings. Review system requirements. * Low coolant level: Check for leaks and top up coolant. See also information about discharge air being contaminated with coolant. * High ambient temperature: Review installation and system parameters. * Insufficient cooling air: Check ducting and cooling air path. * Dirty, blocked coolant cooler (cooling air side): Clean or replace.
S
Stephen RobertsonAug 31, 2025
What causes Ingersoll-Rand Air Compressor discharge air to be too hot?
- B
  Brandon MooreAug 31, 2025
  If the discharge air from your Ingersoll-Rand Air Compressor is too hot, it could be due to: * High ambient temperature: Review the installation and system parameters. * Insufficient cooling air: Check the ducting and cooling air path, and verify the direction of blower rotation. * Dirty, blocked aftercooler (cooling air side): Clean or replace it.
D
Dawn BoyerAug 30, 2025
Why does my Ingersoll-Rand Air Compressor package draw too much current?
- M
  Martin BoyerAug 30, 2025
  If your Ingersoll-Rand Air Compressor package is drawing too much current, consider these potential causes: * The compressor may be operating above its rated pressure. Check and adjust the settings accordingly. * A separator filter element might be dirty or blocked. Replace it.
K
Kyle MoralesAug 29, 2025
Why is my Ingersoll-Rand Air Compressor package producing excessive noise?
- K
  Katherine GrossAug 29, 2025
  Excessive noise from your Ingersoll-Rand Air Compressor package can be due to several reasons: * Ensure all panels and doors are properly closed. * Check for air leaks from internal pipework or components; repair or replace as necessary. * Inspect the blower or blower motor bearings for wear; repair or replace if needed. * Remove any loose debris impacting the blower during rotation and repair any damage. * Check if the blowdown valve is stuck open; repair or replace it. * Verify that the pressure relief valve is seating correctly; repair or replace it if not. * Look for vibration due to motor, airend, or blower imbalance; repair or replace the affected components.
J
Jill ContrerasAug 28, 2025
Why is the discharge air from my Ingersoll-Rand R55 Air Compressor too hot?
- S
  Sabrina BrightAug 28, 2025
  If the discharge air from your Ingersoll-Rand Air Compressor is too hot, consider these potential causes: * High ambient temperature. Review the installation and system parameters. * Insufficient cooling air. Check the ducting and cooling air path, and verify the direction of blower rotation. * Dirty or blocked aftercooler (cooling air side). Clean or replace the aftercooler.
J
John JensenAug 27, 2025
Why does my Ingersoll-Rand R55 Air Compressor stop and not restart?
- J
  jwongAug 27, 2025
  If your Ingersoll-Rand Air Compressor stops and will not restart, it could be due to: * A tripped drive controller. See Tables 4 and 5. * The controller has tripped the compressor. See Tables 4 and 5. * The maximum number of starts per hour has been exceeded.
S
Sean Gonzales MDAug 27, 2025
What to do if Ingersoll-Rand Air Compressor is stopped and will not restart?
- R
  Ronald ShawAug 27, 2025
  If your Ingersoll-Rand Air Compressor is stopped and won't restart, it could be due to the following reasons: * The controller has tripped the compressor and hasn't been reset. See Tables 4 and 5. * The emergency stop button has been pressed but not released. Identify the reason, repair the fault, disengage the button, and reset the controller. * The emergency stop button has been pressed and released, but the controller hasn't been reset. Repair the fault and reset the controller.

Ingersoll-Rand R55 Specifications

General

Model	R55
Power	55 kW
Horsepower	75 hp
Power Source	Electric
Phase	3
Type	Rotary Screw
Max Pressure	150 PSI
Pressure	7.5 - 10 bar
Air Delivery	243 CFM
Noise Level	72 dB

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