SR981S/SR982S operation manual of solar pump station
Page 35 of 85
Input ports
Description
Output ports
Description
T1
Sensor of collector array
P1
Pump 1 for tank 1 circuit
T2
Sensor on the bottom part of tank 1
P2
Pump 1 for heat transfer from tank
1 to tank 2
T3
Sensor on the top part of tank 1
H1
Back-up heat resource
T4
Sensor on the bottom part of tank 2
R1
T-valve for tank switch
T5
Sensor on the top part of tank 2
T6
DHW sensor
R3
Pump for DHW circuit
T7
Sensor on the return pipe
T8
Sensor on the flow pipe( SR981S no)