Xylem MM 217K Series 150S and 157S Low Water Cut-Offs/Pump Controllers - Manual (Page 8)

8
b. Following the appropriate wiring diagram, (refer
to page 9) based on your application require-
ments, and using BX armored cable or Thinwall
electrical metal tubing connector fittings, make
electrical connections to the junction box (L).
PUMP
SWITCH
PUMP
CIRCUIT
TERMINALS
LOW WATER
CUT-OFF AND
ALARM SWITCH
ALARM
CIRCUIT
TERMINALS
LOW WATER
CUT-OFF
TERMINALS
L
PUMP #1
SWITCH
PUMP #1
CIRCUIT
TERMINALS
PUMP #2
SWITCH
PUMP #2
CIRCUIT
TERMINALS
L
MOTORIZED
VALVE
SWITCH
MOTORIZED
VALVE
TERMINALS
LOW WATER
CUT-OFF AND
ALARM SWITCH
ALARM
CIRCUIT
TERMINALS
LOW WATER
CUT-OFF
TERMINALS
L
1 2 3 4 5 6
PUMP
SWITCH
PUMP
CIRCUIT
TERMINALS
LOW WATER
CUT-OFF AND
ALARM SWITCH
ALARM
CIRCUIT
TERMINALS
LOW WATER
CUT-OFF
TERMINALS
L
IMPORTANT: There must be
a minimum space of 1/2”
(13mm) between connector
fittings and electrical live
metal parts.
Automatic Reset
(All models except 158S and 159S)
Automatic Reset
Model 158S
Manual Reset
Model 158S-M
Automatic Reset
Model 159S
Manual Reset
(All models except 158S)
Snap Switches (Series 150S and 157S)
MOTORIZED
VALVE
SWITCH
MOTORIZED
VALVE
TERMINALS
LOW WATER
CUT-OFF AND
ALARM SWITCH
ALARM
CIRCUIT
TERMINALS
LOW WATER
CUT-OFF
TERMINALS
L
1 2 3 4 5 6