Anticipator on thermostat

T-O

Shannon, you have received good information from the replies I have read. Most likely you are not sure if your thermostat anticipator's setting is set properly. On all the thermostats that I have purchased, the anticipators are set for warm air heating and one must change it to the system used, steam, water, etc, so it can it can work properly. A good starting point to gain knowlege on your thermostat is the instruction's brooklet that came with the unit. If you don't have it, you can go to the manufacturer's web site and most lkely read it on line or copy it. Also you can call your thermostat manufaturer's customer service and tell them the thersmosat model number and your heating system, example, steam/gas fired, etc. and they will tell you the recommended anticpator setting. Example, if steam system, they will tell you to set the anticipator at the maximun (longest) setting if it is a non digital thermostat, or to a specify setting number if ditital, example, to set it on number 1.
T-O

Shannon_3

Anticipator on thermostat

I'm new to all of this and am curious. Reading a previous post, It was stated that the anticipator on the thermostat should be set to the amperage rating of the equipment. What equipment? (I have a 50 yr. old gas fired HB Smith boiler)

Barbarossa

They are refering to the final control element, the t stat is switching ie. gas valve, relay. The sure way is to put a miliamp meter is series and see what the current is then uae that for your starting point on the setting.

Shannon_3

Anticipator setting

What happens if the anticipator on the thermostat is not set to match the amp rating on the gas valve relay?

Big Ed

setting

You can burn it out,create a on-off or overheat problem....

Barbarossa

Simply put: undershoot or overshoot of the set point.