- Air flow controllers, air conditioning and refrigeration (30)
- Fan control, temperature responsive (3)
- Humidity controls, air-conditioning types (3)
- Pressure controllers, air-conditioning system type (2)
- Refrigeration controls (pressure) (3)
- Refrigeration/air-conditioning defrost controls (1)
- Time program controls, air-conditioning systems (1)
- Damper operators: pneumatic, thermostatic, electric (12)
- Switches, pneumatic positioning remote (5)
- Switches, thermostatic (1)
- Temperature controls, automatic (11)
- Thermostats, except built-in (9)
- Hydronic circulator control, automatic (1)
- Hydronic pressure or temperature controls (8)
- Liquid level controls, residential or commercial heating (2)
- Electric heat proportioning controls, modulating controls (4)
- Sequencing controls for electric heat (1)
- Appliance regulators (3)
- Clothes dryer controls (1)
- Electric space heater controls (1)
- Building services monitoring controls, automatic (31)
- Controls, combination limit and fan (2)
- Controls, combination oil and hydronic (2)
- Energy cutoff controls, residential or commercial types (10)
- Flame safety controls for furnaces and boilers (3)
- Float controls, residential or commercial types (1)
- Gas burner, automatic controls (3)
- Ice maker controls (1)
- Incinerator control systems, residential and commercial type (3)
- Primary oil burner controls, including stack or cadmium cell (3)
- Steam pressure controls, residential or commercial type (1)
- Vapor heating controls (2)
- Water heater controls (1)
