Instruction of SR81 Split Pressurized Solar Hot Water System
Page 10 of 59
3.6 R3 output connection with T- valve / pump
3 wires T-Valve 2 wires T-Valve
Connection with pump
R3 connect with T-valve: (COM common terminal, NO always open terminal, NC always
close terminal)
R3 connect with pump: (COM common terminal, NO always open terminal)
3.7 Connection with high efficiency pump
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