1. TXV Kits How to apply a TXV kit to an evaporator coil – Initial installation

2. Coil Preparation • Relieve the pressure from the coil by loosening the 13/16 nut 1 turn only. • Remove the nut and discard the black seal

3. Coil Preparation • Remove the check piston and discard

4. Coil Preparation • Use a tube cutter to remove the spin closure on the suction line

5. Coil Preparation • Remove the tailpiece clamped to the exterior

6. Suction Line Connection • Slide back the suction line grommet before brazing • Insert the TXV equalizer line with flare nut into the grommet • Then insert the suction line tubing (line set)

7. Suction Line Connection • Braze suction line tubing (line set) to the suction line field connection on coil

8. Expansion Valve Connection • Connect expansion valve outlet to flowrator body. Make sure Teflon seal is in place

9. Expansion Valve Connection • Slide the 13/16 nut into position. Braze tailpiece to the liquid tube (line set)

10. Expansion Valve Connection • AFTER THE TAILPIECE HAS COOLED, position the white Teflon seal and hand tighten the nut

11. Expansion Valve Connection • Torque the 13/16 nut to 10-30 ft/lb

12. Expansion Valve Connection • Connect equalizer tube with 1/4 flare nut to suction line fitting on the suction manifold (internal to the case)

13. Expansion Valve Connection • Torque to 8-10 ft/lb • Dress the tube to avoid rubbing and replace the grommet

14. Expansion Valve Connection • Secure expansion valve bulb to suction line (exterior to the case) with banding straps provided at the 10 o’clock or 2 o’clock position • IMPORTANT: Insulate the bulb and adjacent area

15. Wrap Up • Finally – Check for leaks

16. Thank You!