System Sensor ZC20 - Manual (Page 3)

Figure 2. Wiring Diagrams
D770-32-00 3 I56-0053-003R
WIRING DIAGRAM FOR STAND ALONE APPLICATION
}
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FOR INTERCONNECTING MULTIPLE ZONECHECK UNITS
}
}
}
}
AC POWER AND PUMP WIRING
MUST CONFORM TO NEC OR
YOUR LOCAL CODES.
OR OTHER MONITORING DEVICE.
WATERFLOW
DETECTOR
KEYSWITCH OPERATION IF WATERFLOW
DETECTOR IS CONNECTED TO PANEL
WF INPUT NOT REQUIRED FOR
NOTE:
AC GROUND
AC POWER
GND
JUNCTION BOX
AC
PUMP
PUMP
AC
WF INPUT
WATERFLOW
DETECTOR
INTER-CONNECT
PUMP
TO EARTH GND.
OR ATTACH TO
JUNCTION BOX
OR ATTACH TO
JUNCTION BOX
OR ATTACH TO
INTERCONNECT
SWITCH FOR
ZONECHECK
TO NEXT
AC GROUND
AC POWER
GND
AC
PUMP
PUMP
AC
TO EARTH GND.
PUMP
WF INPUT
INTER-CONNECT
PUMP
AC POWER
AC GROUND
TO EARTH GND.
PUMP
PUMP
AC
AC
GND
INTER-CONNECT
WF INPUT
WATERFLOW
DETECTOR
Figure 1. Zonecheck Installation
Correct Horizontal Installation
Correct Vertical Installation
Incorrect Horizontal Installation Incorrect Horizontal Installation
RED VALVE
WATER-
FLOW
DETECTOR
GREEN
VALVE
ZONECHECK
PUMP
RED VALVE
GREEN
VALVE
ZONECHECK
PUMP
WATER-
FLOW
DETECTOR
ZONECHECK
PUMP
ZONECHECK
PUMP
CORRECT
Pump stripes
(horizontal)
INCORRECT
Pump stripes
(vertical)