Steve weightman
Gas Engineer
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Hi, can anyone identify what the 1,2 and 3 terminals are on the round plastic aps the old honeywell has been replaced with it but no instructions were in the box.
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- Thread starter Steve weightman
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Discuss Air pressure switch terminals in the Air Sourced Heat Pumps area at Plumbers Forums
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You could test it for continuity and figure out what one is common and nc and no?
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