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Section 5 • Maintenance/Service
Oil Separator Coalescing Filter Replacement
WARNING
When working with refrigerants, ensure there is
adequate ventilation and refrigerant vapor detectors
as per ASHRAE standards. Failure to comply may
result in serious injury or death.
WARNING
Avoid skin contact with any condensate or oil. Wear
rubber gloves and a face shield when working with
condensate or oil. Failure to comply may result in
serious injury or death.
WARNING
Use appropriate lifting devices and additional
personnel when lifting heavy components. Ensure
lifting devices are capable of lifting the weight of
the component. Use lifting points (i.e. bolt holes
designated for lifting eye bolts) that are provided
on the component. Failure to comply may result in
serious injury.
For coalescing oil filters (11-7/8 in. O.D.), a tubing
(3/4 in. O.D. x 6 ft. long ) can be used to aid in
removal and installation of the element.
Removal
1.
Isolate the compressor unit, see Compressor Unit
Isolation procedure.
2.
If required, install lifting eyes on oil separator man-
hole cover, see Figure 5-15.
3.
Secure appropriate lifting device to oil separator
manhole cover.
4.
Remove all bolts except top four bolts securing oil
separator manhole cover to oil separator vessel.
5.
Adjust lifting device as needed to hold weight of oil
separator manhole cover.
6.
Remove remaining four bolts and oil separator
manhole cover from oil separator vessel.
7.
Remove nuts, flat washer and cover plate securing
coalescing oil filter to hold-down rod.
8.
With assistance of second person, remove coalesc-
ing filter from oil separator vessel.
9.
Repeat steps 7 and 8 to remove additional coalesc-
ing filters, as required.
VSS/VSM/VSH/VSSH • Installation, Operation and Maintenance Manual • Emerson • 35391SD
NOTE
Installation
10. Install tubing over hold-down rod. Position tubing
as far back as possible.
11. With assistance of second person, position coalesc-
ing element over tubing and through hole of cen-
tering strap.
12. Push coalescing filter into vessel until fully seated
on pipe stub.
13. Remove tubing.
14. Position cover plate and flat washer on hold-down
rod on end of the coalescing filter.
15. Install nut to secure flat washer and cover plate to
coalescing filter. Tighten nut to 25 ft-lbs.
16. Install second nut to prevent first nut from moving.
17. Repeat steps 10 to 16 for installing additional co-
alescing filters.
18. Position oil separator manhole cover on oil separa-
tor vessel.
19. Install bolts to secure oil separator manhole cover
to oil separator vessel.
20. Tighten bolts, see Appendix A.
21. Perform Compressor Unit Leak Check procedure.
5 – 21
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