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How Relays Work

Relays are an important part in your BAS and you will be running into these with almost every installation or troubleshooting situation....

Ohm's Law and your BMS

"Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points....

Controllers and Resistors

Convert 0-10Vdc to 0-5 Vdc Install 1 resistor in series (R1) and 1 resistor in parallel (R2) with the signal. Values of R do not matter...