I have an Empire floor furnace with a B67 valve. The four terminal posts are labeled pilot generator-two posts- and two other posts that are labeled thermostat. The pilot comes on and stays on but the main burner will not come on. I am trying to use a Honelwell Pro 3000 series thermostat. This type of thermostat only has one output in the heat mode. Any ideas on how to wire this thermostat in. The original thermonstat was removed sveral years ago and this furnace has not been used for at least 10 years.

Thanks