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Expansion Valve
Operating principle After remove the Seal Cap, theAdjusting Stem can be turned. If it is turned clockwise, will increasesuperheat, if it is turned counterclockwise, superheat will bedecreased. For each turn of the Adjusting Stem, the superheat will bechanged about 4. Set superheat 3.5 when exit FactoryInstallation:.
1. Attention: Before opening anysystem, make sure the pressure in the system is brought to and remainsat atmospheric pressure. Failure to comply can result in system damageand/or personal injury.
2. Be sure valve is installed with itsflow arrow corresponding to the flow direction through the piping, andthe valves should be located as close as possible to the distributor orevaporator inlet.
3. When we sold the valve connections, we shall wrap wet cloths around the valve to prevent valve damage while brazing.
4. Attach the remote bulb to the suction line as close to theevaporator outlet as possible. Position the bulb at the 4 or 8 oclockposition. Clean surface of suction line where the remote bulb is to beattached. If the remote bulb can be affected by the surroundingambient, then the bulb should be insulated with a material that willnot absorb water.
5. Connect the optional external equalizer lineto the suction line slightly downstream form the remote bulb locationand positioned so that it cannot siphon oil from the suction line.
6. Make sure that the orifice you chose is suitable to the TEV of your system before install it.
Thermal Expansion Valve for R22 R134A R407C R507/404A R(S Series)