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PRODUCT PART NUMBER switch DOWN) If you choose cycle mode: 24V Combined Step Controller 191238-ZCS The first relay is switched on when there is a demand FEATURES increase (pressure switch UP), and will be the first to be switched off when demand decreases (pressure •...
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COMBINED STEP CONTROLLER INSTALLATION / USER GUIDE PRODUCT PART NUMBER The first relay is switched on when there is a demand increase (pressure switch UP), and will be the last to 240V Combined Step Controller 191180-ZCS be switched off when demand decreases (pressure switch DOWN) FEATURES If you choose cycle mode:...