Removing / Installing Air Cooled Cooler; Cleaning Water Cooled Cooler; Checking High Airend Temperature Sensor - Ingersoll Rand R30 Manual De Instrucciones

121714.07.04
EN
To install:
1. Stop the compressor.
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.
5. Carefully place the cooler in its proper location and install the three
sets of lower nuts and bolts tightly.
6. Install the three sets of upper side nuts and bolts, finger tight + ¼
turn. Next, add the second nut to each tightly. This second nut is
used to lock the first in place. It is important the first nut is not too
tight so it can allow the cooler to expand and contract without
stressing the cooler's brazed joints.
7. Re-attach all hoses and pipes, and properly torque according to the
Parts Information manual.
8. Replace the access panels on the side of the cooler plenum.
9. Refill the compressor with coolant to the proper level, following the
process outlined in the "Adding Coolant" procedure.
Removing / Installing Air Cooled Cooler (Sequential cooler

for R37e-160)
To remove:
1. Stop the compressor.
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 .
5. Drain the coolant from the coolant cooler by removing the hex plug
located at the front of the air cooler, and lower side of the coolant
cooler.
6. Remove all hoses, pipes, and sensors from the coolers.
7. Remove the external sheet metal panels.
8. Remove the access panels on the sides of the cooler plenum.
9. Properly secure the air aftercooler and remove the four nuts from
the two bolts at the upper sides of the cooler.
10. Remove the two nuts from the bolts at the bottom of the cooler.
11. Carefully remove the air aftercooler.
12. Properly secure the coolant cooler and remove the four nuts from
the two bolts at the upper sides of the cooler.
13. Remove the two nuts from the bolts at the bottom of the cooler.
14. Carefully remove the coolant cooler.
15. Re-install the coolant drain plug to 23 N m (17 ft lb) for compressors
75 kW and smaller or 65 N m (48 ft lb) for compressors 90 kW and
larger.
To install:
1. Stop the compressor.
2. Isolate the compressor from the system.
3. Press the emergency stop to vent the separator tank and airend.
EN-8
NOTICE
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 .
5. Carefully place the coolant cooler in its proper location and install
the two sets of lower nuts and bolts, tightly.
6. Install the two sets of upper side nuts and bolts, finger tight + ¼
turn. Next, add the second nut to each tightly. This second nut is
used to lock the first in place. It is important the first nut is not too
tight so it can allow the cooler to expand and contract without
stressing the cooler's brazed joints.
7. Ensure the rubber seal on the air aftercooler is in place on the
cooler and in good condition.
8. Carefully place the air aftercooler cooler in its proper location and
install the two sets of lower nuts and bolts tightly.
9. Install the two sets of upper side nuts and bolts finger tight + ¼
turn. Next add the second nut to each tightly. This second nut is
used to lock the first in place. It is important the first nut is not too
tight so it can allow the cooler to expand and contract without
stressing the cooler's brazed joints.
10. Re-attach all hoses, pipes and sensors, and properly torque
according to the Parts Information manual.
11. Replace the access panels on the sides of the cooler plenum.
12. Refill the compressor with coolant to the proper level, following the
process outlined in the "Adding Coolant" procedure.
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.

Checking High Airend Temperature Sensor


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.
NOTICE
80447170 Rev C