While the coil is 24V for control circuit integration

which allows for versatile mounting and sensor bulb placement even in confined air handler or cased coil configurations

Featuring a 11x10 double inlet configuration

this spring-return motor delivers 175 lb-in torque to ensure positive closure during power loss or emergency signals

always use 18 AWG twisted

Trane TCONT103AN21HA Thermostat 320735-701 While the coil is 24VThe Trane TCONT103AN21HA is a professional grade, non programmable digital thermostat engineered for precise 2 stage heating and 1 stage cooling applications. As a veteran HVAC technician, I recommend this unit for its reliability in systems utilizing heat pump technology, gas, oil, or electric furnaces. This model is the direct OEM replacement for legacy controls including the TCONT401AN21MA, TCONT401AN21MAA, XR401, and ACONT401AN21MA. It features a