txv kits how to apply a txv kit to an evaporator coil – initial installation
TRANSCRIPT
TXV Kits
How to apply a TXV kit to an evaporator coil – Initial installation
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
Coil Preparation
Remove the check piston and discard
Coil Preparation
Use a tube cutter to remove the spin closure on the suction line
Coil Preparation
Remove the tailpiece clamped to the exterior
Suction Line Connection
Slide back the suction line grommet before brazingInsert the TXV equalizer line with flare nut into the grommetThen insert the suction line tubing (line set)
Suction Line Connection
Braze suction line tubing (line set) to the suction line field connection on coil
Expansion Valve Connection
Connect expansion valve outlet to flowrator body. Make sure Teflon seal is in place
Expansion Valve Connection
Slide the 13/16 nut into position. Braze tailpiece to the liquid tube (line set)
Expansion Valve Connection
AFTER THE TAILPIECE HAS COOLED, position the white Teflon seal and hand tighten the nut
Expansion Valve Connection
Torque the 13/16 nut to 10-30 ft/lb
Expansion Valve Connection
Connect equalizer tube with 1/4 flare nut to suction line fitting on the suction manifold (internal to the case)
Expansion Valve Connection
Torque to 8-10 ft/lbDress the tube to avoid rubbing and replace the grommet
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 positionIMPORTANT: Insulate the bulb and adjacent area
Wrap Up
Finally – Check for leaks
Thank You!