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Thread: Electronic Expansion Valve
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18-06-2010, 01:35 AM #1
Electronic Expansion Valve
The McQuay WHS series water chillers (made in Italy) use what appears to be a Carel controller mated up with a Danfoss Electronic Expansion Valve. The controller gets a signal from the Micro tech controller on where to position the valve.
Does anyone know what this signal is? Is it a high level interface or is it a 0-10V/ 4 - 20mA or similar?
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