Which thermostat series would be best for a low-voltage HVAC application?

For low-voltage HVAC applications, the 2450CMG Series, 2450RCG Series, 2450RG Series, 2455RG Series, or 3106 Series would be suitable options. These series feature gold alloy contacts designed specifically for low voltage applications and are factory calibrated for HVAC use. (Pages 2-8)