CSA approval Constant Temperature Water Heater Control Board BW-HK002R
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 signal detection.
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
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Working voltage range
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90VAC ~ 120VAC
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Rated voltage
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120VAC 60Hz
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Power frequency
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50/60Hz±5%
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Rated frequency
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50Hz
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Dielectric strength(V/1min)
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1800V, 0.5mA, 3S
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Working ambient temperature
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-10℃~70℃
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Ambient temperature
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-20℃~70℃
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Life cycle
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≥50,000 times
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Temperature setting range
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35-65℃
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High temperature protection
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when the output water temperature ≥85℃ for 3S
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Pre- cleaning time
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2S
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After cleaning time
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20s
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Start-up water flow
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≤3L/min
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Closing water flow
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≤2.5L/min
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Ignition time
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8±1S
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Cleaning time before 2nd ignition
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3S
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Max. allowable No. of ignition
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2
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Valve moving pulse
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0.5±0.05S
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24V Valve open voltage
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≥24V
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24V Valve holding voltage
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≥8.5V
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Output voltage of switch power supply
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5VDC (with 300mA working current)
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30±1.5VDC(with 510mA working current)
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12±1VDC(with 110mA working current)
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Ion sensibility of flame detection
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≥5.1MΩ
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Temperature detection precision
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±2℃
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Waiting time of reaching setted temperature
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≤35S
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Water temperature overshoot range
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±3℃
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Timing tolerance
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±1 minutes
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Post-purge time
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20±2s
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Time to achieve safe shut down
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＜1s
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Trial for ignition period
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7.5±1s
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