In hydronic heating, to control where heated water goes to various sections of a building, the system might rely on two or more zone valves. A zone valve opens or closes based on demand from a ...
FLORHAM PARK, N.J. — Emerson’s ASCO™ Series 158 Gas Valve and Series 159 Motorized Actuator is designed specifically for burner-boiler applications. The new products give OEMs, distributors, ...
Recently I wrote in this column that every component in a controls circuit is a power supply, a switch or a load — no other possibilities. And that means that every control, hydronic or otherwise, is ...
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