A thermostat is a device that controls the temperature of your heating and cooling system. It senses the temperature in your home and sends signals…
Category: Thermostats and Humidistats
Table 5-4 lists possible remedies to a number of different operating problems associated with oil burner primary controls. Before checking the primary control, examine the…
The combination primary control and aquastat is designed for use with a constant-ignition oil burner in a hydronic heating system. The purpose of this unit…
Stack-mounted oil burner primary controls employ thermal sensors to detect ignition or flame failure. A typical stack detectorthermal sensor (see Figure 5-87) consists of a…
A cadmium cell primary control consists of a primary control assembly operating in conjunction with a cadmium detection cell. The cadmium detection cell is considered…
Oil valves are used to provide on-off control of the flow of oil to the oil burner. These are normally closed solenoid valves that open…
The principal functions of the oil controls are (1) to turn the oil burner on and off in response to temperature changes in the space…
Many people frequently confuse mercury flame sensors (MFS) with thermocouples because each has a similar sensor that extends into the pilot flame and a tube…
An igniter produces the spark for direct ignition of the main gas burner in various heating applications (gas furnaces, gas boilers,gas water heaters, etc.). The…
The principal components of a hot-surface ignition system are the hot-surface ignition module, a line voltage silicon carbide igniter (also sometimes called a glow stick…