The pressure test is an essential part of the floor heating installation process. It helps verify the functionality of the floor heating system once it’s been installed. If the pressure test fails, it often indicates potential issues like leaks or improper construction. In such cases, the construction team needs to revisit and rectify the problem.
To conduct the pressure test, start by using a water pump to fill the system with water. Gradually increase the pressure to 0.6 MPa or 1.5 times the standard working pressure while monitoring for any unusual occurrences throughout the process. After one hour of stable pressure, if there's no leakage observed, continue monitoring for another 15 minutes. If the pressure drop remains below 0.05 MPa, the test is considered successful. Following this, slowly raise the pressure again and gradually increase the water temperature to around 25-30°C over approximately 20 hours, ensuring the system reaches normal operating temperatures within 24 hours.
During colder months, take necessary anti-freezing precautions before starting the pressure test. Always refer to the pressure difference as a critical indicator; the greater the difference, the more efficient the heat circulation will be. While filling the system with water, do so slowly and meticulously inspect the seals of each loop to avoid inaccurate readings.
After completing the pressure test, make sure to relieve the pressure and drain the water. Additionally, document the exact pressure readings and store them properly for future reference and maintenance purposes. This documentation is crucial for tracking performance and troubleshooting any issues down the line.
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