Sunhome Tech SR1568 User Manual

Operation manual of solar controller SR1568
Page 19 of 87
System 5: Solar system with east/west collector fields, 1 tank, valve-logic control
Description:
The controller calculates the temperature
difference between collector sensor T1, T0
and tank base sensor T2. 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 collector and tank will be
loaded until the switch-off temperature
difference or the maximum tank temperature
is reached.
Sensor
ports
Description
Relay
outputs
Description
T0
Temperature of collector 2
R1
Solar circulation pump
T1
Temperature of collector 1
R4
3-ways valve for collector switch
T2
Temperature of tank 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 upper
(selectable)
R3
T4
Selectable sensor, free
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