Table of Contents
Advertisement
Fig 10: Single phase Inverter Wiring Diagram
Ensure to connect the wires according to the instructions,
incorrect connection may lead to abnormal operation of the
system.
CAUTION
Wiring Reminder
In case single phase pump motor connection parts cannot be recognized, perform the
following steps to identify
Step 1: Test the resistance between each pair of the connection parts with a multi-
meter, the two ports with largest resistance value should be the main winding
M and auxiliary winding A, so the other one is common port C.
Step 2: Test the resistance between C and the other 2 ports, the resistance between C
and M should be relatively less and the resistance between C and A should
be much bigger.
Step 3: If the measured resistance in step 2 appears to have little difference, then
compare water flow during operation to determine if the wiring is correct.
Keep C port wiring unchanged, exchange the wiring of A and M and observe
the water flow. The wiring with bigger water flow should be the correct wiring.
From the above steps, the connection ports A, M,C of single phase motor can be
confirmed
3.6 Water Level Switch Installation and Wiring Instruction
The water level switch is installed in the well for dry running protection or installed
in the water tank for overflow protection.
Water level switch requires vertical installation with maximum 10° inclination
angle. The installation position should be slightly higher than the pump outlet
position in the well, while in the water tank it should be slightly lower than highest
water level as shown in Fig.11.
4 13
Hide quick links:
Advertisement
Table of Contents
