inverter/ generator powering worcester combi
- Thread starter horndean
- Start date
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If the waveform is fairly clean they should work alright.
The boiler takes about 200w.
Most inverters produce a square wave.
Three things you could try:-
Adding a parallel load of a 100w light bulb.
Adding a parallel capacitor of about 16 uF and 440 vac working. That may stop the inverter though!
Adding the parallel capacitor AND a series resistor before the capacitor of about 20 ohms and 50 watts.
The objective is to clean up the waveform until the boiler is happy with it.
Tony
The boiler takes about 200w.
Most inverters produce a square wave.
Three things you could try:-
Adding a parallel load of a 100w light bulb.
Adding a parallel capacitor of about 16 uF and 440 vac working. That may stop the inverter though!
Adding the parallel capacitor AND a series resistor before the capacitor of about 20 ohms and 50 watts.
The objective is to clean up the waveform until the boiler is happy with it.
Tony
Some flame-failure devices are polarity sensitive and require a neutral to work. We exported burners to Brazil and they connected them to a 220V line-to-line (Hot) supply. Without the neutral, they would not light.
The solution was to connect to a 110V line to neutral supply and use a step-up (to 220V) transformer.
The solution was to connect to a 110V line to neutral supply and use a step-up (to 220V) transformer.
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Thats a good point!
I am not sure about Worcester boilers, certainly most older ones are not polarity sensitive.
Virtually all inverters are either connected with one output to chassis or they could be.
If they have a floating output then, after reading the instructions, connect one side to the earth. First check though that one side of the output is not connected to one side of the input! If thats the case just make sure you connect the same side to the earth.
Most small inverters are self protected and just stop if they are overloaded or shorted.
Tony
I am not sure about Worcester boilers, certainly most older ones are not polarity sensitive.
Virtually all inverters are either connected with one output to chassis or they could be.
If they have a floating output then, after reading the instructions, connect one side to the earth. First check though that one side of the output is not connected to one side of the input! If thats the case just make sure you connect the same side to the earth.
Most small inverters are self protected and just stop if they are overloaded or shorted.
Tony
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