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Single-phase unit
Pump 2, 1x230V
Pump 1, 1x230V
External device
terminal board
System LEDs
Fuses
Input connectors
230V line & Ground
terminal board
BMS contacts (Building
Management System)
BMS LEDs
Output connectors
Pump 1 (M1) & Pump 2 (M2)
0-180’’ Timing adjustment
EB1 board
AUT Green light for automatic mode
MAN Red light for manual mode
LINE Green light for power on
Switch MAN/AUT
Switch ON/OFF Pump 1/2
Green lights for
running pump1 and
pump2
Fig. 4