TM 10-8145-222-23
0081
REPLACE CONTINUED
NOTE
When removing the TXV bulb, it is important to note the position of the bulb relative
to the suction line to aid in the installation of the replacement valve.
14. Loosen clamp (Figure 2, Item 7) and remove TXV bulb (Figure 2, Item 5) from suction line (Figure 2, Item 8)
while noting position removed from.
WARNING
Wear protective gloves and eye protection when using Isopropyl alcohol. If contact
with eyes is made, flush with clean water and seek immediate medical first aid for
eyes. Rinse and dry hands immediately after exposure. Failure to observe this
warning may result in drying and/or serious damage to the skin.
15. Clean outside of suction line (Figure 2, Item 8) where TXV bulb (Figure 2, Item 5) was attached using isopropyl
alcohol.
16. Loosen and remove O-ring Seal (ORS) fitting (Figure 2, Item 9) on liquid line (Figure 2, Item 10).
CAUTION
Use a wrench to secure TXV body when loosening fittings.
17. Remove O-ring (Figure 2, Item 11) from ORS fitting (Figure 2, Item 9).
18. Wrap TXV (Figure 2, Item 12) in wet rags to act as a heat sink.
19. Desolder equalizer line (Figure 2, Item 13) from TXV (Figure 2, Item 12).
20. Desolder distributor pipe (Figure 2, Item 14) from TXV (Figure 2, Item 12).
21. Remove TXV (Figure 2, Item 12).
22. Clean surfaces of replacement TXV and refrigerant piping.
23. Remove metering internals of replacement TXV.
CAUTION
Overheating the thermostatic expansion valve can damage the valve, making it
inoperable. Use care when soldering valve into the system so as not to overheat the
valve. Wrapping the valve in wet rags will act as a heat sink and minimize valve
exposure to heat.
Use care not to allow moisture to enter the refrigeration system. If moisture is allowed
to enter the refrigeration system, the entire refrigeration system must be evacuated.
24. Wrap new TXV (Figure 2, Item 12) in wet rags to act as a heat sink.
25. Solder distributor pipe (Figure 2, Item 14) into TXV (Figure 2, Item 12).
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