If the incoming voltage is less than 216V, the primary power tap at the transformer must be changed from the “240V” spade to the “208V” spade. Failure to do so will cause a control voltage of 18V or less, which will lead to erratic (or no) operation in the contactors and relays. It will also cause thermostat failure. Please have an electrician wire your Office Container or Office Trailer to ensure safe and proper electrical hookup.
