Primary controls also have a reset button that allows you to restart your oil burner (when the power comes back on after an outage, for example).Īdditional protection circuits, such as the cad cell (cadmium sulfide photocell sensors) were added to oil heat systems in the early 1970s. Solid-state controls and advanced microprocessor-based controls are very accurate. Primary controls monitor the oil burner’s flame. Low limit/operating controls: These controls start and stop the burner on a signal from the thermostat or aquastat (a device that controls water temperature). They will turn off the burner if temperatures become too high in the furnace or boiler, or if the pressure in a steam boiler rises to an unsafe level. High limit/safety controls: These controls act as safeguards to prevent overheating.
There are two categories: high limit/safety controls and low limit/operating controls. Limit controls on oil heating systems regulate warm air, water temperature and pressure control. You can also monitor the temperature in your home when you’re away on vacation and take action if you detect a problem. If you’re away from home, you can use your phone to adjust the temperature setting so your home is at the perfect temperature when you return. Once the smart thermostat gets installed, you register it online. A Wi-Fi enabled thermostat allows you to view and change temperature settings from anywhere, thanks to your smartphone. Today, many people are using a smart thermostat in their oil-heated homes. When heat is needed, the thermostat starts the burner through the primary control and an electrical circuit. The thermostat is the control that gets all of the other controls on an oil heat system going. Let’s start with the device that gets all the gears in the motion whenever your home needs heat. Here’s a brief overview of some of the controls to help you better understand how your oil heat system works. And they have become more accurate and sophisticated with the introduction of more technologically advanced equipment. One important factor in making today’s oil heating equipment so remarkably safe and efficient has been the proven reliability of modern oil heating controls.Ī wide range of limit controls, thermostats and switching relays are used in the operation of oil heat systems. Whether it’s a boiler or a furnace, over the years there have been major improvements to the equipment you use to heat your home.
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