The plumber has disappeared on us with 99% of the job done. Our new basement remodel has baseboard heating installed, a water pump attached to the furnace/boiler, but no heat downstairs because their is no thermostat. I haven't checked to see if he did any wiring. (Wouldn't that be an electrician's job?) I've ordered a wireless thermostat kit, and I'm assuming installation instructions for the base are included, but it hasn't arrived yet. What should I do to get that pump pumping hot water to keep us nice and cozy?
That part in the picture is a high limit control with manual reset. It has nothing to do with the pump. You will need more than a thermostat to control the added pump. When you have more than one pump the system is zoned .You need a switching relay panel (Taco SR502) that not only turns on the pump , but also the burner. There is a lot to know here and it's best left to a heating contractor.
Back away from that furnace and call your plumber.
