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Refrigeration Maintenance
190
Filter Drier/In-line Filter Replacement
Filter Drier/In-line Filter Removal
Remove the filter drier/in-line filter by performing the following steps:
1. Recover the refrigerant charge from the unit.
2. Place the new filter drier near the unit for immediate installation.
3. “Crack” both the inlet and outlet nuts on the filter drier. Use two wrenches on flare fittings to prevent
line damage.
4. Separate the filter drier line mountings.
5. Remove the filter bracket clamping nuts and bolts.
6. Remove the old filter drier from the unit.
Filter Drier/In-line Filter Installation
Install the filter drier/in-line filter by performing the following steps:
1. Remove the sealing caps from the new filter drier.
2. Apply clean compressor oil to filter drier threads.
3. Install new filter drier in unit. Finger tighten mounting nuts.
NOTE: To prevent incorrect installation of the dehydrator, the inlet and outlet fittings are different
sizes.
4. Reinstall clamping brackets, nut and bolts. Tighten the bolts.
5. Tighten filter drier inlet and outlet nuts.
NOTE: Always hold the body of the dehydrator (or liquid filter) near the flange fittings. This will
prevent twisting the tubing when the nuts are being loosened or tightened.
6. Pressurize the refrigeration system and check for leaks (see “Refrigerant Leak Test Procedure” in this
chapter). Repair leaks if required.
7. Recover the refrigerant used for the leak test if no leaks were found.
8. Evacuate the system (see “Evacuation and Cleanup of the Refrigeration System” in this chapter).
9. Recharge the unit with R-404A (see “Charging the System with Refrigerant” in this chapter).
10. Perform a controller pretrip test to verify system operation.
Summary of Contents for 098203
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Page 3: ...MAGNUM TK 60275 4 MM Rev 3 08 15 Copyright 2012 Ingersoll Rand EMEIA Printed in Ireland...
Page 193: ...Refrigeration Maintenance 191 Figure 163 Filter Drier...
Page 200: ...Refrigeration Maintenance 198 Figure 169 Receiver Tank Figure 170 Water Cooled Condenser Tank...
Page 257: ...255 Schematic Diagram RELEASED 19 Sep 2013...
Page 258: ...256 Wiring Diagram Page 1 of 2 RELEASED 19 Sep 2013...
Page 259: ...257 Wiring Diagram Page 2 of 2 RELEASED 19 Sep 2013...
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