gas water heater control board Function description
1) It works with a display.
2) It works with a ventilator.
3) It works with a on-off valve, a proportional valve and a section valve.
4) It is with a buzzer.
5) It has AC ionization flame .
6) Status keeping function: If the nP menu was set as ON, after power on again, the system
will return to the last status before the power is cut off.
7) Flue pipe block-up protection.
8) Malfunction protection and warning function.
9) Compliance with Standard: BS EN298: 2012. ANSI Z21.20 -2014. CAN/CSA C22.2 No. 60730-2-5-2014.
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Main technical parameters | |
Working voltage range | 90VAC ~ 120VAC |
Rated voltage | 120VAC 60Hz |
Power frequency | 50/60Hz±5% |
Rated frequency | 50Hz |
Dielectric strength(V/1min) | 1800V, 0.5mA, 3S |
Working ambient temperature | -10℃~70℃ |
Ambient temperature | -20℃~70℃ |
Life cycle | ≥50,000 times |
Temperature setting range | 35-65℃ |
High temperature protection | when the output water temperature ≥85℃ for 3S |
Pre- cleaning time | 2S |
After cleaning time | 20s |
Start-up water flow | ≤3L/min |
Closing water flow | ≤2.5L/min |
Ignition time | 8±1S |
Cleaning time before 2nd ignition | 3S |
Max. allowable No. of ignition | 2 |
Valve moving pulse | 0.5±0.05S |
24V Valve open voltage | ≥24V |
24V Valve holding voltage | ≥8.5V |
Output voltage of switch power supply | 5VDC (with 300mA working current) |
30±1.5VDC(with 510mA working current) | |
12±1VDC(with 110mA working current) | |
Ion sensibility of flame detection | ≥5.1MΩ |
Temperature detection precision | ±2℃ |
Waiting time of reaching setted temperature | ≤35S |
Water temperature overshoot range | ±3℃ |
Timing tolerance | ±1 minutes |
Post-purge time | 20±2s |
Time to achieve safe shut down | ＜1s |
Trial for ignition period | 7.5±1s |
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