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Installation of TXV Valve
TXV Kit (thermostatic expansion valve) provided together with the equipment is for on-site
mounting. Installation of this valve must be done with tapered threaded fitting.
Figure 10. Thermostatic Expansion Valve TXV
Figure 11. Steps for TXV Kit Installation
Step 1 - Remove the fixed expansion device (calibrated orifice) mounted on the indoor unit. See
images.
Step 2 - Connect liquid line and gas line piping to the outdoor unit (brazed fitting).
Step 3 - Connect the thermostatic expansion valve TXV to the liquid line and gas line connections
coming from the outdoor unit.
Step 4 - Connect the thermostatic expansion valve TXV to the liquid line and gas line piping of the
indoor unit. Apply appropriate torque. Verify the absence of refrigerant leaks.
MS-SVN052E-EN
SETP 1
STEP 4
Tapered
Brazed
TX
TXV KIT
XV
V KIT
STEP 3
Unit Installation
STEP 2
15
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