4. Installation Guide
4.1 Wire connection
Typical wire connection as below pictures:
P+ ETH P- NC 1 2 3 COM2 TH COM1 WL WH
solar panel
4.2 Terminal Instruction
：
Table 3 Terminal instruction
Terminal
Instruction
P+
Anode of solar panel
ETH
Earth
P-
Cathode of solar panel
NC
Blank
1
Connect with Pump motor Wire 1
2
Connect with Pump motor Wire 2
3
Connect with Pump motor Wire 3
COM2
Low level of Tank(Water level sensor)
TH
High level of Tank(Water level sensor)
COM1
Public wire of Well(Water level sensor)
WL
Low level of Well(Water level sensor)
WH
High level of Well(Water level sensor)
P+ ETH P- NC 1 2 3 COM2 TH COM1 WL WH
05
06
