Instruction of SR81 Split Pressurized Solar Hot Water System
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or from hole
⑤
, using a suitable tool (like knife) to cut the plastic of
⑤
, and wire is
connected into housing from hole
⑤
.
Note:
wires must be fastened by fixing clamps on the position
⑥
.
3.5 Terminal connection
Note:
before opening the housing! Always disconnect the controller from power
supply and obey the local electrical supply regulation.
Input ports
T1: PT1000 temperature sensor, for measuring the temperature of collector
T2 ~T6: NTC10K, B=3950 temperature sensor, for measuring temperature of tank and
pipe.
HK-A,HK-B: on/off signal, ( HK and HR triggered or stopped synchronously, for boiler
heating controller)
PWM: for high efficiency pump, connection see pump terminal connection diagram
VFS: connect Grundfos flow sensor
FRT: For rotary vane type electronic flowmeter
