The pressure testing of floor heating is a critical component of the installation process, especially after the system has been fully installed. This step is essential for verifying that the floor heating system is functioning correctly. If the pressure test fails, it often indicates potential issues like leaks or improper construction. In such cases, the construction team needs to thoroughly reinspect and address these problems.
To conduct the pressure test:
1. Begin by using a water pump to fill the system with water gradually. Slowly increase the pressure to 0.6 MPa or 1.5 times the standard working pressure of the system. Throughout this process, closely monitor for any unusual occurrences.
2. Once the pressure stabilizes after an hour, ensure there are no signs of leakage. After an additional 15-minute observation period, confirm that the pressure remains above 0.05 MPa to qualify as successful. Following the initial pressure test, gradually raise the temperature of the water for the first heating cycle, keeping the water temperature between 25-30°C for approximately 20 hours. Within 24 hours, the water temperature should reach its normal operating range.
Additional considerations:
1. During winter pressure tests, take necessary anti-freezing precautions.
2. While the pressure value is important, the pressure difference is equally significant. A higher pressure difference means a faster heat cycle, ensuring continuous heat supply.
3. When injecting water during the pressure test, proceed slowly to avoid inaccuracies. As the system fills with water, meticulously inspect the seals of each loop to prevent any errors.
4. After completing the pressure test, release the water and the pressure. Be sure to document the pressure readings accurately and archive them for future reference.
Conducting these tests properly ensures the reliability and efficiency of the floor heating system, preventing costly repairs down the line.
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