Xylem MM 286B Series 1575 – Low Water Cut-Off/Pump Controller - Manual (Page 7)

7
• Connect wire “ a ” from power supply to
t e rminal “ H ” .
• Connect wire “ b ” from neutral supply to
t e rminal “ N ” .
• Connect wire “ c ” from pump control circuit
to terminal “ P N O ” .
• Connect wire “ d ” from pump control circuit
to terminal “ P C O M ” .
• Connect wire “ e ” from bu rner control
circuit to terminal “ B N O ” .
• Connect wire “ f” from alarm control circuit
to terminal “ B N C ” .
• Connect wire “ g ” from bu rner or alarm
control circuit to terminal “ B C O M ” .
WIRING DIAGRAMS
Low Water Cut-Off, Alarm and Pump Up Control
• Connect wire “ a ” from power supply to
t e rminal “ H ” .
• Connect wire “ b ” from neutral supply to
t e rminal “ N ” .
• Connect wire “ c ” from pump #1 control
circuit to terminal “ P N O ” .
• Connect wire “ d ” from pump #1 control
circuit to terminal “ P C O M ” .
• Connect wire “ e ” from pump #2 control
circuit to terminal “ B N C ” .
• Connect wire “ f” from pump #2 control
circuit to terminal “ B C O M ” .
Dual Pump Control
• Connect wire “ a ” from power supply to
t e rminal “ H ” .
• Connect wire “ b ” from neutral supply to
t e rminal “ N ” .
• Connect wire “ c ” from va l ve control circuit
to terminal “ P N O ” .
• Connect wire “ d ” from va l ve control circuit
to terminal “ P C O M ” .
• Connect wire “ e ” from bu rner control
circuit to terminal “ B N O ” .
• Connect wire “ f” from alarm control circuit
to terminal “ B N C ” .
• Connect wire “ g ” from bu rner or alarm
control circuit to terminal “ B C O M ” .
Motorized Valve and Low Water Cut-Off
FROM BURNER OR ALARM
CONTROL CIRCUIT
TO ALARM
CONTROL CIRCUIT
TO BURNER
CONTROL CIRCUIT
FROM PUMP UP
CONTROL CIRCUIT
TO PUMP UP
CONTROL CIRCUIT
NEUTRAL
HOT
BCOM
BNC
BNO
PCOM
PNC
PNO
N
H
g
f
e
d
c
b
a
FROM PUMP #1
CONTROL CIRCUIT
FROM PUMP #2
CONTROL CIRCUIT
TO PUMP #2
CONTROL CIRCUIT
TO PUMP #1
CONTROL CIRCUIT
NEUTRAL
HOT
BCOM
BNC
BNO
PCOM
PNC
PNO
N
H
f
e
d
c
b
a
FROM VALVE
CONTROL CIRCUIT
TO VALVE
CONTROL CIRCUIT
NEUTRAL
HOT
BCOM
BNC
BNO
PCOM
PNC
PNO
N
H
d
c
b
a
FROM BURNER OR ALARM
CONTROL CIRCUIT
TO ALARM
CONTROL CIRCUIT
TO BURNER
CONTROL CIRCUIT
g
f
e