Changing Oil Filter - Carrier 17/19EX Start-Up, Operation And Maintenance Instructions Manual

Check Safety and Operating Controls Monthly
To ensure machine protection, the Control Test Automated Test should be done at least
once per month. See

Changing Oil Filter

19EX Compressors
Change the oil filter on an annual basis or when the machine is opened for repairs. The 19EX
compressor has an isolatable oil filter so that the filter may be changed with the refrigerant
remaining in the machine. See
1. Make sure that the compressor is off, and the disconnect for the compressor is open.
2. Disconnect the power to the oil pump.
3. Close the oil filter isolation valves
4. Loosen the filter holding clamp,
5. Rotate the filter nut,
Keep the filter housing upright to avoid an oil spill.
6. Drain the oil; use this oil to obtain an oil analysis; remove and replace the filter cartridges.
Do not use any of the extra felt washers supplied with the filters.
7. Bench assemble Items A - D upside down, then slide the filter housing (Item 5) over the
stack to ensure that the spring (Item D) is centered in the bottom of the housing as
Table 3 for safety control settings.
Figure 44. Use the following procedure:
(Figure
(Figure
(Figure 44, Item 4), counterclockwise to remove the filter housing.
44, Items 1 and 2).
44, Item 3).