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Condensing boiler
A condensing boiler is provided with a condenser, by which the water vapour produced by the burning of gas or oil in the boiler, condenses back into liquid water - hence the name condensing boiler. The energy contained in the vapour, would without a condenser, normally discharged to the atmosphere through the flue.
Condensing temperature
The condensing temperature is the temperature at which a cooling medium changes phases from a gas to a liquid.
Conductivity transmitter
Conductivity transmitters measure the electrical conductivity in a liquid. This is done in order to avoid excessive salinity, which can cause corrosion in e.g. air-conditioning systems.
Constant curve, control mode
When there is a demand for constant flow and con­stant head, a speed controlled pump can replace a throttle valve for adjusting the flow.
Constant differential pressure, control mode
Constant differential pressure can be used in circulating systems with a pipe system with low pressure loss and with control valves to generate a variable flow.
Constant flow, control mode
Constant flow is used in systems where there is a demand for a constant flow independent of the pressure loss.
Constant pressure boosting
Increasing water pressure to a certain set point and keeping the pressure regardless of flow and inlet pressure.
Constant pressure, control mode
Constant pressure is used to keep a pressure at a constant level, typical in water supply and in pressure holding vessels in circulation systems.
Consumption profile
The consumption profile shows the relationship between the time of the day and the water flow rate. This is relevant in connection to water boosting systems.
Control valve
A control valve is used to regulate the amount of a circulating medium to a consuming unit. This can for example, be a mixing loop, a heat exchanger, or a fan coil.