Do you know how Wotech test the heat exchanger and how we control the quality for you. Below is the steps.
The first step is water leakage check, our staff will connect the heat exchanger with the water pipe and charge water pressure up to 4 bar to see if water leaks from the PVC shell. We are 100% check on every heat exchanger with 4 bar water pressure and 6 bar as random check on some pieces.
The second step is refrigerant circuit leakage check. Titanium heat exchangers are kept at high pressure of nitrogen inside the coil for 48 hours which can check refreigerant circuit leakage before being assembled, this is 100% check. After 48 hours workers will unscrew the gas valve to check if any gas pressure inside the titanium coil to find the leaks. Those fail will be rejected to suppliers.
After all checking, a round green QC passed sticker wil be put on the heat exchanger to show this is QC passed.
For more welcome to visit our website www.ecowotech.com
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