Removing / Installing Air Cooled Cooler; Cleaning Water Cooled Cooler (For Both Clean & Harsh Water Options); Cleaning Motor Cowl - Ingersoll-Rand RS45i Product Maintenance Information

EN
NOTICE
For any required lifting of air compressor parts or
required tools, always use the proper certified lifting
equipment, and employ sound working principles.
5. Visually check the outside of the cooler cores to
determine the appropriate cleaning method detailed
as follows:
a. For loose dirt, dust and other light foreign material,
open the access panel on the cooler plenum. Gently
blow compressed air across the cooler surface.
Repeat the process until the coolers are sufficiently
clean. Replace the access panels before returning the
compressor to service.
b. For thick, packed dirt, coolant or grease, or other
heavy material, the coolers will need to be removed
from the compressor for pressure washing. Ingersoll
Rand does NOT support pressure washing coolers
when they are installed in the compressor due to
the dangers of spraying water in or around potential
electrical power sources. Follow the steps below for
cooler removal.

REMOVING / INSTALLING AIR COOLED COOLER

To remove:
1. Stop the compressor.
2. Isolate the compressor from the system.
3. Press the emergency stop. 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.
5. Drain the coolant from the coolant cooler.
6. Remove all hoses, pipes, and sensors from the coolers.
7. Remove the external sheet metal panels.
8. Remove cooler mounting connection at both sides
of the cooler. (support cooler with appropriate lifting
provision prior to removing mounting connection).
9. Remove cooler out from mounting connection.
To install:
1. Stop the compressor.
2. Isolate the compressor from the system.
3. Press the emergency stop. 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.
5. Install cooler mounting connection at both sides of
cooling sheet metal plenum and keep it loosen.
EN-8
RELEASED 11/Feb/2019 01:43:20 GMT
CLEANING WATER COOLED COOLER (FOR BOTH
CLEAN & HARSH WATER OPTIONS)
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.
If water inlet lines have strainers, inspect them and replace or
clean 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.
Back flush the cooler with a flow rate at least 1.5 times the
normal flow rate.
After using any cleaning solution, thoroughly flush out all
chemicals with clean water before returning the cooler to
service.
Mechanical cleaning methods are not recommended as
damage to the internal passages may occur.
After cleaning, examine the cooler for erosion or corrosion.

CLEANING MOTOR COWL

6. Carefully place the cooler on its proper location and
install mounting hardware. Fully tighten nut against
bolt shoulder.
7. Re-attach all hoses and pipes and properly torque
according part information manual
8. Refill the compressor coolant to proper level,
following the process outlined in the "Adding Coolant"
procedure.
1. Ensure the compressor is electrically isolated
for at least 15 minutes before commencing any
maintenance work.
2. Remove the panels from the compressor.
3. Using a clean dry cloth, remove dust from the surface
of the motor cowl and ensure all ventilation slots are
free of obstructions.
4. Replace the panels.
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