How does the "swing" setting on thermostats work?

I'm in charge of programming the thermostat for a small building, and am not clear about the Swing setting. Apparently I can control how many degrees the ambient temperature must fall below the heat setting before the heat starts up. Is that correct? In other words, if the Swing setting is 3 degrees and the heat setting is 62 degrees, once that temperature is reached, does the furnace shut off until the ambient temperature falls to 59 degrees? Thanks.|||Typically the swing setting refers to the difference between the highest and lowest temperatures. If the swing setting is 3 degrees and the setpoint is 62, then the heat should copme on at 60.5 and shut off at 63.5, thereby swinging through 3 degrees.|||Temperature swing includes the temperature in the space before and after the system starts and stops. For example, a setting of 73 is set for the contacts to close and send a call for heat. The furnace sequence begins for several minutes and by this time, the temp has lowered to 72. Now, the furnace runs through the cycle and stops at 73 and the fan continues to run for a set time to deliver the heat in the vents. The temp is now 75. The temperature swing in the space is 75-72 or 3 degrees.|||The first answer is correct, if just slightly incomplete. The only thing that needs to be added is that generally a swing of greater than 3C (5F) will result in some individuals being uncomfortable.|||wow