TXV REPLACEMENT - PACKAGE UNIT
3
ActronAir is constantly seeking ways to improve the design of its products, therefore specifications are subject to change without notice.
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2. Ensure TXV is installed with its flow arrow to follow the direction of flow of the refrigeration system. As reference,
take note of the direction of flow of the old TXV and fit the new one with the same orientation as the old valve.
TXV FLOW ARROW
DIRECTION OF
REFRIGERANT FLOW
3. Always use wet rags when brazing the valves. They are heat sensitive and can be easily damaged when brazing.
NOTES
• Always face the flame away from TXV when braizing.
• Cool down the expansion valve immediately after braizing.
4. Braze the equalizer tube in the new TXV.
5. When installing the TXV bulb sensor, ensure to clean the surface of the suction line where the previous one was
installed.
6. Make sure that the location of new bulb sensor will be in the exact location as the old bulb sensor.
As a reference, location of sensor bulb will be as follows:
D
a
b
b
Item
Suction Pipe
Outside
Diameter (D)
Bulb Location
a
1/2” to 5/8”
1 o’clock
b
3/4” to 1-1/4”
2-3 o’clock
7. Form the strap to shape and radius of the valve.
8. Leaving the bulb in formed strap, wrap the remaining end of the strap around the suction line.
9. Insert the end of the strap through the fastening clip (make sure the fastening screw is almost fully backed off), pull
tight then bend over the clip.
