CSA approval Constant Temperature Water Heater Control Board BW-HK002R
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
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
