Johnson Controls - PENN A421ABD-02C Series Electronic Temperature Controls with Off-Cycle Defrost HVAC thermostat In addition to four 6

In addition to four 6

its intuitive touchscreen and mobile app let you set up a full 7‑day programmable schedule in just minute

Class 0 Air Duct

Easy to use and accurate

Johnson Controls - PENN A421ABD-02C Series Electronic Temperature Controls with Off-Cycle Defrost HVAC thermostat In addition to four 6Johnson Controls PENN A421 Series Electronic Temperature Controls with Off Cycle Defrost The A421 Series controls are single stage, electronic temperature controls with a single pole, double throw (SPDT) output relay. The controls feature an adjustable backlit LCD for viewing the temperature and status of other functions, and a three button touchpad for setup and adjustment. An LED indicates the on off status of the output relay. The A421 controls are