1PCS For DANFOSS TX2 TEX2 068Z3206 068Z3209 R22/R407C Expansion Valve NEW

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Location: shenzhen
Ships to: US,
Item: 386099264657

Restocking Fee:No
Return shipping will be paid by:Buyer
All returns accepted:Returns Accepted
Item must be returned within:60 Days
Refund will be given as:Money back or replacement (buyer’s choice)
Unbraned:Unbraned
MPN:Does Not Apply

All Products Are Carefully Checked, Packed and Tested Before Delivery 1PCS For DANFOSS TX2 TEX2 068Z3206 068Z3209 R22/R407C Expansion Valve NEW Correct adjustment of expansion valve: (1) Before adjusting the thermal expansion valve, it is necessary to confirm that the refrigeration abnormality in the cold storage is caused by the thermal expansion valve deviating from the optimal operating point, not by the lack of freon, blocked drying filter, filter screen, fan, belt and other reasons. At the same time, it is necessary to ensure the accuracy of the temperature packet sampling signal, the temperature sensor installation location must be correct, absolutely can not be installed in the pipeline directly below, in order to prevent the bottom of the pipe oil accumulation and other factors affect the temperature sensor packet correct temperature. (2) Matters needing attention when adjusting thermal expansion valve The thermal expansion valve must be adjusted in the normal operation of the refrigeration device. Since the surface of the evaporator cannot be placed with a thermometer, the suction pressure of the compressor can be used as the saturation pressure in the evaporator, and the approximate evaporation temperature can be obtained by looking up the table. The temperature of the return trachea is measured with a thermometer and compared with the evaporation temperature to check the superheat. During the adjustment, if you feel that the superheat is too small, you can turn the adjusting screw clockwise (that is, increase the spring force, reduce the thermal force expansion valve opening degree), so that the flow decreases; On the contrary, if you feel that the superheat is too big, that is, insufficient liquid supply, you can turn the adjusting screw in the opposite direction (counterclockwise), so that the flow increase. Due to the thermal inertia of the thermal expansion valve temperature sensing system in the actual work, the signal transmission lags behind, and the next adjustment can be carried out after the operation is basically stable. Therefore, the whole adjustment process must be patient and meticulous, adjusting the number of turns of the screw rotation should not be too fast. (3) Specific adjustment steps of thermal expansion valve 1) downtime. Insert the probe of the digital thermometer into the insulation layer at the return air port of the evaporator (corresponding to the position of the sensing packet). Connect the pressure gauge to the three – way compressor low – pressure valve. 2) start the machine and let the compressor run for more than 15 minutes to enter the stable operation state, so that the pressure indicator and temperature display can reach the stable value. 3) the temperature T2 corresponding to the pressure measured by the reading digital thermometer temperature T1 and the pressure gauge, and the superheat is the difference between the two readings, t1-t2. Note that both readings must be read at the same time. Thermal expansion valve superheat should be between 5-8℃, if not, appropriate adjustment. The adjustment step is: first remove the thermal expansion valve protection cover, and then turn the adjustment screw 2-4 turns, and wait for the system to run steadily, readout again, calculate the superheat, whether it is in the normal range, if not, repeat the previous operation, until meeting the requirements, the adjustment process must be careful. The difference between internal equilibrium and external equilibrium: Thermal expansion valve can be divided into internal balance type and external balance type according to the conditions of use. In structure, and the balance type thermal expansion valve and balanced in basic same, balance within two mouth (out into fluoride mouth/fluoride mouth), outer balance three mouth (mouth out into fluoride mouth/fluorine/balance). The difference is in effect at the bottom of the corrugated diaphragm is not at the entrance of the evaporator refrigerant pressure, but after the equalizer pipe connected as refrigerant in the evaporator outlet pressure. In this way, the internal resistance of the evaporator is avoided. No matter whether the internal resistance is large or small, the pressure acting above and below the diaphragm can be adjusted according to the required superheat. Internal balance thermal expansion valve can only be used for evaporator with small internal resistance, widely used in small refrigerator, cold storage, air conditioning… Refrigeration equipment below SP.The external balance thermal expansion valve is used only when the evaporator pressure loss is large (it is recommended for machines above 5HP) to use the expansion valve. Spool selection (for reference only) Low temperature type: for example, it is recommended to choose 02# valve core for 3 compressors Medium temperature type: for example, 3 compressors are recommended to use 03# spool High temperature type: for example, it is recommended to choose 04# valve core for 3 compressors Because refrigerant is different, pressure is different, please choose according to actual situation, the above suggestion is for reference only! Please make sure the Model is the same as yours before purchase. Photo above is only for illustration purposes. Package includes： 1PCS . Note: We will post positive feedbacks to our customers after they are satisfied with our service and/or products, in case you are not satisfied with our products or service, please contact us about the issue that you encountered, we will try our best to resolve it for you. Our object is to satisfy all our customers. Please remember any issues can be resolved prior any open case or negative feedback comments. RETURN POLICY: We provide 60 days free replacement ,30 days money back on non-defective, undamaged, unused and resalable products. Product is not eligible for refund after the 30-day refund period has expired. 60 days warranty for the product. In case anything wrong within the warranty period, you can return your item for exchange. All mistaken orders will be charged 15% re-stocking fee. Thanks for your understanding. Contact us We can be contacted at any time through eBay messages if you have any questions, comments or product requests. We will respond to you within 24 hours and do our best to help you out! We encourage our customers to contact us with any questions or concerns! We’d like to be sure you are completely satisfied with your purchase. Payment We accept payment including PayPal, major credit cards, Apple Pay, etc. Shipping&Delivery time Economy Shipping,SpeedPAK Standard via air mail service to US,AU,EU,Europe 2 to 4 Weeks. other country 2 to 6 Weeks,You may sometimes experience longer delivery time due to customs-related delays. Express Shipping Usually we use DHL, UPS, FEDEX for Express shipping, which is expected to arrive in 3-7 days. Free eBay listing template designed by startingbusiness

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