SUNFLOWER SR91, Руководство по эксплуатации

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Instruction of SR91 Split Pressurized Solar Hot Water System
Page 9 of 49
3.5.1 Terminal allocation of controller for electrical heater of 1500W

Input ports

T1: PT1000 temperature sensor, for measuring the temperature of collector

T2 ~T5: NTC10K, B=3950 temperature sensor, for measuring temperature of tank and
pipe.

FRT: For rotary vane type electronic flowmeter

Display connection
Port 1: connect red wire (
＋
12V)
Port 2: connect white wire ( COM)
Port 3: connect black wire ( GND)
Note : please lead wire into indoors, and fix the cable outdoors.

1500W Output ports

Input Ports L, N: for power connection, L: live wire, N: zero wire, protective wire,
with 10A power plug.

Output R1: Electromagnetic relays, Max. Current: 2A

Output R2: Electromagnetic relays, Max. Current: 2A

Output R3: Electromagnetic relays, Max. Current: 2A R3

Output HR: Electromagnetic relays, designed for on/off control of back-up
heating device, Max. Current: 10A ( @AC230V, for

1500W electrical heater,
@110VAC, for

750W electrical heater)