3822 - Automatic Controls for Regulating Residential and Commercial Environments and Appliances
Establishments primarily engaged in manufacturing temperature and related controls for heating and air-conditioning installations and refrigeration applications, which are electrically, electronically, or pneumatically actuated, and which measure and control-variables such as temperature and humidity; and automatic regulators used as components of household appliances. …
Examples: Air flow controllers, air-conditioning and refrigeration except valves, Appliance regulators, except switches, Building
