Firm believer in single phase preventers especially on roof top HVAC units. Worked at a cheap shake Gannett newspaper back when they were having record profits & stock split. They had the cheapest basic rooftop 20 & 25 Ton compressors that I told them needed this protection but said the $4 to 500 for 4 units was too much and were under warranty. Under warranty two compressors burned out due to single phasing and cost nothing . Following two years other two compressors burnt out but they had to pay the $5,000 for a over 100' lift crane to get compressor onto units . After tight wades spent $10,000 for cranes plus labor they spent $500 on the comoressors. Pay me a little NIW or a lot more later.
It is very
Technically sound lecture
Usually don't like indian accent(no offense), but man, this channel is really helpful to me. Thanks! Keep it up!
Firm believer in single phase preventers especially on roof top HVAC units. Worked at a cheap shake Gannett newspaper back when they were having record profits & stock split. They had the cheapest basic rooftop 20 & 25 Ton compressors that I told them needed this protection but said the $4 to 500 for 4 units was too much and were under warranty. Under warranty two compressors burned out due to single phasing and cost nothing . Following two years other two compressors burnt out but they had to pay the $5,000 for a over 100' lift crane to get compressor onto units . After tight wades spent $10,000 for cranes plus labor they spent $500 on the comoressors. Pay me a little NIW or a lot more later.
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Kindly explain plc and analog & digital output
Brother for DOL starters don't use neutral.
In this circuit you show neutral is connected to NC RELAY. can you explain about this.