White-Rodgers 1E78-151 Thermostat 012 orifice size

012 orifice size

ensuring performance in unconditioned mechanical spaces

this unit serves as the updated cross-reference for the older S1-024-27638-001 model

maintaining the long-term accuracy of your proportional control signals

Constructed from high-grade brass or aluminum depending on application specs

White-Rodgers 1E78-151 Thermostat 012 orifice sizeThe White Rodgers 1E78 151 is a job site staple for contractors looking for a reliable, vertical profile 5 2 day programmable thermostat. This 70 Series economy model is engineered for single stage 1H 1C HVAC systems, providing a seamless digital upgrade for older mechanical units without requiring a common wire (C wire). It operates on 24V AC low voltage systems and is fully compatible with millivolt heating applications, making it a versatile choice