Every refrigerant system has it's own and specific ideal superheat. The factory 4K is simply playing it safe, Danfoss does not want You to back flush your compressor. What you have to do is to adjust your TXV to the point it starts hunting and back it of 1/4 turn (T2/TE2 other valve look it up) . You do this at end of cycle when your system has reached its working temperature. If every technician would take the time to correctly adjust the superheat we all would safe massive amounts of energy and lots of compressors.
Hello, good information there, thank u.. We have an issue in our marine packaged aircon system which has Danfos TEX... The entire line after TEX till suction of compressor along with evaporator gets icing and eventually suction pressure drops down. The system is not overcharged as the level of regrigerant in sight glass of condenser is just below half. Do we need to starve the evaporator by adjusting TEX?? for that we need to turn adjusting knob on TEX clockwise to increase the superheat right?? Kindly advise.. thank you
Hi. There may be two solutions here. One is that it is correct to turn the knob clockwise to increase the SH, and this will reduce the amount of refrigerant that is injected. But also the refrigerant subcooling could have part in this flooding of the evaporator. If the subcooling of the refrigerant, entering the TXV is very high, it may be that the load on the evaporator simply isn't enough to completely evaporate the liquid. The TXV is supposed to close down, but it may be a combination of a too low SH setting and (too) high subcooling. So we recommend you also check to see if the subcooling is higher than normal. We also noticed that your question included a comment of the system not being overcharged, so that is not the reason for the possible high subcooling if that is part of the root cause. We hope this helps!
How often do you see TXV needs to be adjusted? I have seen a system that’s running 9F sub cool and superheat is 24F. Factory asking for 8-18F superheat. New system too.
Hello. We do not have a firm figure for how many TXVs are actually adjusted. There are two situations. One is OEM's, they normally optimize the setting. It is a different situation with wholesaler customers. We do not believe that many of the TXVs that are sold through that channel are adjusted. However we believe that it is not in anyone's interest to not optimize the TXV setting. We believe that a noticeable energy saving could be achieved if more fitters would optimize the TXVs. Danfoss today already offer full access to a number of applications (both PC and mobile) to perform optimal selection and optimizing of products. This SW is available on the Danfoss.com home page under Service and support and then under Downloads. Regarding your question about optimizing of the setting of TXVs, there's one program we can mention - the TXV Superheat Tuner. Today it offers basic support in optimizing TXV setting. In the future this SW is intended to be further developed. Hope this was helpful!
Hello Abdullah. Adjusting the superheat is not the same as adjusting the temperature of the refrigeration system, the fridge or cold room. That's what the thermostat is for, not the TXV. When you adjust the superheat, you adjust the amount of refrigerant running through the evaporator, not the temperature. Thank you.
Hello Abdullah, Please have a look at our specific training "Danfoss Packaged & Standard Condensing Units: Installation, Troubleshooting & Maintenance. danfoss.sabacloud.com/Saba/Web_spf/EU2PRD0064/guestapp/ledetail/cours000000000011581?certId=curra000000000003521 You should be able to solve all your doubts there. Many thanks
love the quality of your txvs
Thanks,we are glad you like them!
Super😵😵😵 😁😁😁😁😁😁🤓🤓😎😎😎
Crisp and clear information, 🙏
Glad it was helpful!
Every refrigerant system has it's own and specific ideal superheat. The factory 4K is simply playing it safe, Danfoss does not want You to back flush your compressor. What you have to do is to adjust your TXV to the point it starts hunting and back it of 1/4 turn (T2/TE2 other valve look it up) . You do this at end of cycle when your system has reached its working temperature. If every technician would take the time to correctly adjust the superheat we all would safe massive amounts of energy and lots of compressors.
Thanks to danfoss
If there will set of training for hot gas by pass valves it could be very helpful
Glad to see that the video is helpful. We will inform your suggestion for the training topic to our developer team. :)
ขอวิธีการปรับเอ็กแปนชั่นวาล์ว รุ่น TEX5 ขอบคุณครับ
Hello, good information there, thank u..
We have an issue in our marine packaged aircon system which has Danfos TEX...
The entire line after TEX till suction of compressor along with evaporator gets icing and eventually suction pressure drops down.
The system is not overcharged as the level of regrigerant in sight glass of condenser is just below half.
Do we need to starve the evaporator by adjusting TEX?? for that we need to turn adjusting knob on TEX clockwise to increase the superheat right??
Kindly advise.. thank you
Hi. There may be two solutions here. One is that it is correct to turn the knob clockwise to increase the SH, and this will reduce the amount of refrigerant that is injected.
But also the refrigerant subcooling could have part in this flooding of the evaporator. If the subcooling of the refrigerant, entering the TXV is very high, it may be that the load on the evaporator simply isn't enough to completely evaporate the liquid. The TXV is supposed to close down, but it may be a combination of a too low SH setting and (too) high subcooling. So we recommend you also check to see if the subcooling is higher than normal.
We also noticed that your question included a comment of the system not being overcharged, so that is not the reason for the possible high subcooling if that is part of the root cause.
We hope this helps!
How often do you see TXV needs to be adjusted? I have seen a system that’s running 9F sub cool and superheat is 24F. Factory asking for 8-18F superheat. New system too.
Hello. We do not have a firm figure for how many TXVs are actually adjusted. There are two situations. One is OEM's, they normally optimize the setting. It is a different situation with wholesaler customers. We do not believe that many of the TXVs that are sold through that channel are adjusted. However we believe that it is not in anyone's interest to not optimize the TXV setting. We believe that a noticeable energy saving could be achieved if more fitters would optimize the TXVs. Danfoss today already offer full access to a number of applications (both PC and mobile) to perform optimal selection and optimizing of products. This SW is available on the Danfoss.com home page under Service and support and then under Downloads. Regarding your question about optimizing of the setting of TXVs, there's one program we can mention - the TXV Superheat Tuner. Today it offers basic support in optimizing TXV setting. In the future this SW is intended to be further developed. Hope this was helpful!
Counterclockwise decreases superheat? Clockwise increase superheat? Thank you
Yes, correct!
This method dosent make evaporate frozen ?
Hello Abdullah.
Adjusting the superheat is not the same as adjusting the temperature of the refrigeration system, the fridge or cold room.
That's what the thermostat is for, not the TXV. When you adjust the superheat, you adjust the amount of refrigerant running through the evaporator, not the temperature.
Thank you.
If i need more cooler to my package unit how i adjust txv ?
Thanks for your question. We'll get back to you shortly.
Hello Abdullah,
Please have a look at our specific training "Danfoss Packaged & Standard Condensing Units: Installation, Troubleshooting & Maintenance. danfoss.sabacloud.com/Saba/Web_spf/EU2PRD0064/guestapp/ledetail/cours000000000011581?certId=curra000000000003521
You should be able to solve all your doubts there. Many thanks
TEX5 How to adjust
Super💕💕💕💕 💧🥰🥰🥰🥰🥰🥰🥰🥺🥺🥺🥺🥶🥶🥶🥶