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Specified Controls SC-LLC-200 Installation Instructions Manual

Lead/lag controller
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SC-LLC-200
LEAD/LAG CONTROLLER
INSTALLATION INSTRUCTIONS

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Summary of Contents for Specified Controls SC-LLC-200

  • Page 1 SC-LLC-200 LEAD/LAG CONTROLLER INSTALLATION INSTRUCTIONS...

  • Page 2: Sequence Of Operation

    SEQUENCE OF OPERATION When 24 Volt power is first applied to the 24VAC terminals 7and 8 on the SC-LLC-200, Unit 1 and Unit 2 output contacts remain open. When 24 Volts is applied to input terminal 1, Unit 1 output contacts go closed and Unit 2 contacts remain open.
  • Page 3 SC-LLC-200 LEAD/LAG CONTROLLER STAND ALONE APPLICATIONS TYPICAL WIRING DIAGRAMS...
  • Page 4 WIRING DIAGRAM USING SC-LLC-200 LEAD/LAG CONTROLLER WITH SINGLE-STAGE COOLING UNITS IN PARALLEL SC-LLC-200 LEAD/LAG CONTROL 1 2 3 4 5 6 7 8 5351 East Thompson Road, Suite 128, Indianapolis, IN 46237 Phone 888.359.0365 www.specifiedcontrols.com...
  • Page 5 WIRING DIAGRAM USING SC-LLC-200 LEAD/LAG CONTROLLER WITH SINGLE-STAGE COOLING UNITS IN PARALLEL WITH UPSTAGING SC-LLC-200 LEAD/LAG CONTROL 1 2 3 4 5 6 7 8 5351 East Thompson Road, Suite 128, Indianapolis, IN 46237 Phone 888.359.0365 www.specifiedcontrols.com...
  • Page 6 WIRING DIAGRAM USING SC-LLC-200 LEAD/LAG CONTROLLER FOR 2 PUMP SYSTEM WITH A FLOW SWITCH TO TRIGGER LEAD/LAG SC-LLC-200 LEAD/LAG CONTROL 1 2 3 4 5 6 7 8 TRANSFORMER LINE FLOW SWITCH PUMP CONTROLLER PUMP 2 RELAY PUMP 1 PUMP 2...
  • Page 7 WIRING DIAGRAM USING SC-LLC-200 LEAD/LAG CONTROLLER FOR 2 PUMP SYSTEM WITH A RELAY TO TRIGGER LEAD/LAG SC-LLC-200 LEAD/LAG CONTROL 1 2 3 4 5 6 7 8 TRANSFORMER LINE PUMP CONTROLLER PUMP 2 RELAY PUMP 1 PUMP 2 PUMP 1 RELAY...
  • Page 9 SC-LLC-200 LEAD/LAG CONTROLLER USED WITH SC-SC-TK-400 TWINNING AND PARALLELING KIT TYPICAL WIRING DIAGRAMS...
  • Page 10 WIRING DIAGRAM USING SC-LLC-200 LEAD/LAG CONTROLLER AND SC-SC-TK-400 TWINNING KIT FOR COOLING LEAD/LAG SC-SC-TK-400 SC-LLC-200 LEAD/LAG CONTROL 1 2 3 4 5 6 7 8 5351 East Thompson Road, Suite 128, Indianapolis, IN 46237 Phone 888.359.0365 www.specifiedcontrols.com...
  • Page 11 WIRING DIAGRAM USING SC-LLC-200 LEAD/LAG CONTROLLER AND SC-TK-400 TWINNING KIT FOR COOLING LEAD/LAG WITH UPSTAGING SC-TK-400 SC-LLC-200 LEAD/LAG CONTROL 1 2 3 4 5 6 7 8 5351 East Thompson Road, Suite 128, Indianapolis, IN 46237 Phone 888.359.0365 www.specifiedcontrols.com...
  • Page 12 WIRING DIAGRAM USING SC-LLC-200 LEAD/LAG CONTROLLER AND SC-TK-400 TWINNING KIT FOR HEATING LEAD/LAG SC-TK-400 SC-LLC-200 LEAD/LAG CONTROL 1 2 3 4 5 6 7 8 5351 East Thompson Road, Suite 128, Indianapolis, IN 46237 Phone 888.359.0365 www.specifiedcontrols.com...
  • Page 13 WIRING DIAGRAM USING SC-LLC-200 LEAD/LAG CONTROLLER AND SC-TK-400 TWINNING KIT HEATING LEAD/LAG WITH UPSTAGING SC-TK-400 SC-LLC-200 LEAD/LAG CONTROL 1 2 3 4 5 6 7 8 5351 East Thompson Road, Suite 128, Indianapolis, IN 46237 Phone 888.359.0365 www.specifiedcontrols.com...
  • Page 14 WIRING DIAGRAM USING SC-LLC-200 LEAD/LAG CONTROLLERS AND SC-TK-400 TWINNING KIT FOR HEATING AND COOLING LEAD/LAG SC-TK-400 SC-LLC-200 SC-LLC-200 LEAD/LAG LEAD/LAG CONTROL CONTROL (HEATING) (COOLING) 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 5351 East Thompson Road, Suite 128, Indianapolis, IN 46237 Phone 888.359.0365...
  • Page 15 WIRING DIAGRAM USING SC-LLC-200 LEAD/LAG CONTROLLERS AND SC-TK-400 TWINNING KIT FOR HEATING AND COOLING LEAD/LAG WITH UPSTAGING SC-TK-400 SC-LLC-200 SC-LLC-200 LEAD/LAG LEAD/LAG CONTROL CONTROL (HEATING) (COOLING) 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 5351 East Thompson Road, Suite 128, Indianapolis, IN 46237 Phone 888.359.0365...
  • Page 16 WIRING DIAGRAM USING SC-LLC-200 LEAD/LAG CONTROLLERS AND SC-TK-400 TWINNING KIT FOR 1 HEAT / 1 COOL HEAT PUMP SC-TK-400 SC-LLC-200 LEAD/LAG CONTROL 1 2 3 4 5 6 7 8 5351 East Thompson Road, Suite 128, Indianapolis, IN 46237 Phone 888.359.0365...
  • Page 17 WIRING DIAGRAM USING SC-LLC-200 LEAD/LAG CONTROLLERS AND SC-TK-400 TWINNING KIT FOR 1 HEAT / 1 COOL HEAT PUMP WITH UPSTAGING SC-TK-400 SC-LLC-200 LEAD/LAG CONTROL 1 2 3 4 5 6 7 8 5351 East Thompson Road, Suite 128, Indianapolis, IN 46237 Phone 888.359.0365...

  • Page 18: Heat / 1 Cool Heat Pump

    WIRING DIAGRAM USING SC-LLC-200 LEAD/LAG CONTROLLERS AND SC-TK-400 TWINNING KIT AND RY-2 DPDT RELAY FOR 2 HEAT / 1 COOL HEAT PUMP SC-TK-400 SC-LLC-200 LEAD/LAG CONTROL 1 2 3 4 5 6 7 8 NC C NO NC C NO 5351 East Thompson Road, Suite 128, Indianapolis, IN 46237 Phone 888.359.0365...
  • Page 19 WIRING DIAGRAM USING SC-LLC-200 LEAD/LAG CONTROLLERS AND SC-TK-400 TWINNING KIT FOR 2 HEAT / 1 COOL HEAT PUMP WITH UPSTAGING (Auxiliary / EH Heat Work Together) SC-TK-400 SC-LLC-200 LEAD/LAG CONTROL 1 2 3 4 5 6 7 8 5351 East Thompson Road, Suite 128, Indianapolis, IN 46237 Phone 888.359.0365...