Description

 

Electronic Expansion Valve Tester Repair Tool for 12V/24V 5-Wired 6-Wired Electronic Expansion Valve

Advantages:
- With high-power automatic step-up and step-down circuit, it is universal for 12V/24V electronic expansion valve
- Maximum 3000 steps can be set. Automatic positioning steps and driving direction can be set
- Four-level forced repair mode: It can be set according to the blocking state of expansion valve
- Manually adjust the opening of electronic expansion valves in real time, which can be accurately adjusted to 1 step
- Universal adapter cable for non-standard plug of expansion valves

Description:
This is a new generation of electronic expansion valve tester and repairer. Its driving output adopts imported high-power independent driving tube, so its driving torque can reach 5 times, and it has forced repair modes to ensure repair effects. The repairer has an automatic buck-boost function. It is compatible with 12V/24V 5-wire and 6-wire electronic expansion valves, and is suitable for electronic expansion valves of various models and specifications.

It supports fault detection, manual valve adjustment, automatic positioning, and forced repair modes. Key parameters can be set by users.

Fault detection function: When the expansion valve failure of air conditioner occurs, we need to accurately determine on the spot whether it is the failure of the electronic expansion valve drive circuit or the failure of the expansion valve itself. Through the detection function of the repairer, we can determine the fault point on the spot, and avoid huge costs of the materials and labor caused by valve removal, valve replacement, vacuuming and refrigerant replenishment.

Manual adjustment of electronic expansion valve: When repairing or assembling air conditioners, the electronic expansion valve is generally closed because the air conditioner unit is shut down. This will cause a lot of troubles for vacuuming and refrigerant charging. By adjusting the electronic expansion valve, users can open the electronic expansion valve to any opening degree by manual or automatic positioning.

Automatic repair function: Stuck electronic expansion valve is a frequent fault. Especially, when the frequency conversion multi-connected air conditioner electronic expansion valve is used in a large number, and both the external machine and the internal machine are equipped with electronic expansion valves, it often occurs that the electronic expansion valve cannot be opened and the electronic expansion valve cannot be closed completely. Through the advanced automatic repair function of the tester, the electronic expansion valve can be quickly repaired directly on board.

Key Components of the Tester:
- The repairer adopts a high-power automatic buck-boost circuit: Suitable for 12V and 24V 5-wire and 6-wire electronic expansion valves
- Four imported high-power Darlington transistors are used to drive the four-phase coil of electronic expansion valves. The maximum output current can reach 8A, which can generate 5 times the torque to ensure repair effect.

Maintenance Skills of Two Common Problems:
1. The expansion valve cannot be opened or the expansion valve is seriously stuck.
Use the standard mode to repair the expansion valve more than 10 times but still cannot open the expansion valve. You can set the repair device to 24V forced repair mode. If the expansion valve is repaired more than 10 times and stuck seriously, it can generally be repaired.

2. The expansion valve can't be closed completely.
The expansion valve can operate normally, but it cannot be completely closed when it is adjusted to the minimum. Please set the tester automatic-positioning parameter to the minimum. Power on the tester. When the tester finishes automatic positioning and the digital tube displays 0, disconnect the power supply of the tester and power on the tester again. Automatic positioning for many times until the expansion valve can close normally.

Attention: The precondition of the above operation is that the coil of the expansion valve is normal, the wiring is normal, and the maximum step number is set correctly.

Package Included:
- 1 x Electronic Expansion Valve Tester
- 1 x Detection Cable
- 1 x Universal Adapter Cable
- 1 x Instructions

Accessory Functions:
- Detection Cable: to detect drive signal of electronic expansion valve of the original controller, and can also be used for self-detection of the repairer function.
- Universal Adapter Cable: used for on-site quick transfer of various non-standard plug sockets.

Note:
- Power supply is not included in the package. Please prepare it by yourself.

FAQ:
1. Which models is this product suitable for? Which electronic expansion valves can be used?
Answer: This product is suitable for DC12V, DC24V, 5-wired and 6-wired electronic expansion valves regardless of sizes and models.

2. How long is the warranty period of the product?
Answer: Products with non-human faults can be guaranteed for one year.

3. What is the repair principle?
Answer: Using independent imported driving tube, driving torque of the product is 5 times that of the original controller driving chip, which can effectively force the stuck valve core in the electronic expansion valve and restore the normal function of the valve core rotating mechanism.

4. Is the repair rate high?
Answer: Repair can be divided into two situations, namely, direct repair on board and separate repair off board.

4.1. On-board direct repair: Due to the different degree of stuck electronic expansion valve and different technical experience of operators, 100% repair success rate is not guaranteed. According to the actual repair effect statistics of users, the repair success rate is over 90%.

4.2. Separate repair: For the old electronic expansion valve or the electronic expansion valve that failed to be repaired on-board, users can remove the expansion valve and repair it separately. Inject rust remover into the valve body, soak and rinse, and start the repair function at the same time. The repair rate reaches 100%. The repaired electronic expansion valve can be lubricated by injecting refrigerant oil inside, and then it can be put on the machine again.