Sunhome Tech SR1568 User Manual

Operation manual of solar controller SR1568
Page 25 of 87
System 11: Solar system with1 collector field, 2 tanks, 3-ways valve switch loading
tank
Description:
The controller calculates the temperature
difference between collector sensor T1 and tank
sensor T2, T4. If any difference is larger than or
identical to the adjusted switch-on temperature
difference, then solar circulation pump (R1) will
be switched on, and simultaneously valve R4
turns to the corresponding tank and this tank will
be loaded until the switch-off temperature
difference or the maximum tank temperature is
reached.
The priority logic effects prior loading of the tank
1.
Sensor
ports
Description
Relay
outputs
Description
T0
Selectable sensor, free
R1
Solar circulation pump
T1
Temperature of collector
R4
3-ways valve for loading tank
switch
T2
Temperature of tank 1 base
R2
Available selectable functions:
1.CIRC（DHW circulation）
2.OHDP（Thermal transfer）
3.SFB（Solid fuel boiler）
4.BYPR （ Circulation by-pass ）
5.TIMER（Timer function）
6.OPARR（Parallel relay）
T3
Temperature of tank 1 upper
( selectable)
R3
T4
Temperature of tank 2 base
R5
T5
Selectable sensor, free
HR
Back-up heating
T6
Temperature for thermal
energy measurement
( selectable)

Sunhome Tech SR1568 Specifications

General

Brand	Sunhome Tech
Model	SR1568
Category	Controller
Language	English