Hoping someone can help with a problem I have. I have a geothermal heating and airconditioning system with a Robert Shaw 9000i series thermostat. I have a air handler for forced hot air through ducts.
Is there a way to set a time delay for turning on the blower for heating to allow the heat exchanger to heat up before the fan turns on? It takes about 6 minutes from when the thermostat calls for heat to when hot air starts coming out of the ducts. The bedrooms get pretty chilly when cold air is blowing from the ducts. A better solution would be a temperature probe to turn on the fan when the heat exchanger reaches a setpoint.
In air conditioning mode, I do not need any delay.
Thank you for your help!