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Central heating control system - with pump speed variation dependent on difference between actual and desired temp. values
Central heating control system - with pump speed variation dependent on difference between actual and desired temp. values
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机译:中央加热控制系统-泵的速度变化取决于实际温度和期望温度之间的差异。价值观
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摘要
The central heating control system is for use where the water or other liquid is pumped through a circuit between the boiler and one or more radiators. Pump speed is varied as a function of the difference in temperature between the actual value measured near a heat emission point and a reference value, being increased as the difference increases and vice-versa. Pump speed can be steplessly variable, and there can be a minimum speed such that circulation just continues to exist. An alternating-current motor can be used to drive the pump, speed variation being effected by a phase displacement control.
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