TM 10-8145-222-23
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REPLACE CONTINUED
16. On replacement main heat valve (Figure 2, Item 20), spread clip (Figure 3, Item 26) securing coil (Figure 1,
Item 28) to valve outer body (Figure 1, Item 4) and remove coil.
17. Remove four bolts (Figure 3, Item 31) to pull valve outer body (Figure 3, Item 29) off exposing two O-rings
(Figure 3, Item 32 and Item 33).
18. Remove two O-rings (Figure 3, Item 32 and Item 33). Retain for reinstallation.
19. Remove seat disc (Figure 3, Item 34) and spring (Figure 3, Item 30) from inside valve body (Figure 3, Item 35).
Retain for reinstallation.
NOTE
you fit check the assembly to see that all piping lines up and fits accurately. Make
any corrections to piping as needed before soldering assembly into place.
20. Assemble new main heat valve (Figure 3, item 20) and check valve (Figure 3, Item 23) in place onto pipe
(Figure 3, Item 9).
21. Solder new main heat valve (Figure 3, Item 20) and pipe (Figure 3, Item 9) to compressor check valve
(Figure 3, Item 23) and to refrigerant pipe (Figure 3, Item 19) and pipe (Figure 3, Item 22).
WARNING
Allow piping to cool sufficiently before reinstalling coil and clamps.
22. Install two O-rings (Figure 3, Item 32 and Item 33) on outer valve body (Figure 3, Item 20).
23. Insert seat disc (Figure 3, Item 34) and spring (Figure 3, Item 30) into valve outer body (Figure 3, Item 35).
24. Install valve outer body (Figure 3, Item 29) and secure using four bolts (Figure 3, Item 31).
25. Install coil (Figure 3, Item 28) and secure using clip (Figure 3, Item 26).
26. Install two clamps (Figure 3, Item 15) and plate (Figure 3, Item 16) and secure using two screws (Figure 3,
Item 11), nuts (Figure 3, Item 12), new lock washers (Figure 3, Item 13), and washers (Figure 3, Item 14) to
check valve refrigerant pipe (Figure 3, Item 17) and filter drier inlet pipe (Figure 3, Item 18).
27. Install saddle clamp back (Figure 3, Item 10), saddle clamp front (Figure 3, Item 8), and saddle clamp plate
(Figure 3, Item 7) over refrigerant pipe (Figure 3, Item 9) and secure using two screws (Figure 3, Item 5) and
washers (Figure 3, Item 6).
28. Secure main heat valve (Figure 3, Item 20) to bracket (Figure 3, Item 3) using one nut (Figure 3, Item 25).
29. Secure main heat valve mount bracket (Figure 3, Item 3) to condenser (Figure 3, Item 4) using two bolts
(Figure 3, Item 1) and washers (Figure 3, Item 2).
30. Install coil (Figure 3, Item 3) and secure using clip (Figure 3, Item 27).
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