Test items:

1. Rated thermal load and thermal efficiency;

2. Temperature rise of water heater;

3. Temperature rise when water is stopped;

4. Heating time;

5. Water temperature adjustment range;

6. Hot water stabilization time;

7. Water temperature fluctuation;

8. Withstand voltage test

Technical Parameters:

1. Hot water flow rate: 0-30L/min, accuracy: 0.5%F.S;

2. Water inlet pressure: 0～1.6MPa, accuracy: 0.5%F.S;

3. Inlet water temperature: 0-100℃, accuracy: 0.5%F.S;

4. Outlet water temperature: 0-100℃, accuracy: 0.5%F.S;

5. Gas flow: 0-5m3/H, accuracy: 1%F.S;

6. Gas temperature: 0-50℃, accuracy: 0.5%F.S;

7. Gas humidity: 0-RH, accuracy: 2%F.S;

8. Gas flow meter pressure: 0-10KPa, accuracy: 0.5%F.S;

9. Primary gas pressure: 0-10KPa, accuracy: 0.5%F.S;

10. Secondary gas pressure: 0-5KPa, accuracy: 0.5%F.S;

11. Wind pressure: 0-1000Pa, accuracy: 0.5%F.S;

12. Atmospheric pressure: 0-120KPa, accuracy: 1%F.S;

13. Voltage: 0-300V, accuracy: 1%F.S;

14. Current: 0-1A, accuracy: 1%F.S.