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Adjusting is the final setting of balancing devices such as dampers and valves, adjusting fan speeds and pump impeller sizes, in addition to automatic control devices such as thermostats and pressure controllers to achieve maximum specified system performance and efficiency during normal operation.
HVAC (Heating, Ventilation and Air Conditioning) equipment needs a control system to regulate the operation of a heating and/or air conditioning system. [1] Usually a sensing device is used to compare the actual state (e.g. temperature) with a target state. Then the control system draws a conclusion what action has to be taken (e.g. start the ...
Some people may be turning on their heater for the first time this season. Here's how to make sure it's working properly, and how to seek help if it's not. How to safely restart your wall heater ...
Control valves may temporarily help by gradually reducing the flow in favoured circuits, thus allowing unfavored circuits to achieve the correct flow. This will however cause long delays in reaching the set temperature in the building after night setback and will make the installation very inefficient.
Bake-out, in several areas of technology and fabrication, and in building construction, refers to the process of using high heat temperature (), and possibly vacuum, to remove volatile compounds from materials and objects before placing them into situations where the slow release of the same volatile compounds would contaminate the contents of a container or vessel, spoil a vacuum, or cause ...
The back boiler is typically used with a gravity feed circuit to the hot water cylinder, with a vent or overflow to prevent excess pressure build up.It can also be connected to a series of radiators to provide central heating but usually requires an electrical pump to be fitted to circulate the hot water, some systems can use the gravity circuit to include radiators.
Gas stations are routine stops for most people, but they also present opportunities for criminals to take advantage of those who are unaware. Before you fill up your tank next time, it's important ...
The low limit is intended for tankless domestic hot water; it ensures that boiler water is always warm enough to heat the domestic hot water. Many aquastats also have a differential (diff) control which determines the size of the range around the low and/or high controls.