Sunhome Tech SR1568 User Manual

Operation manual of solar controller SR1568
Page 33 of 87
System 19: Solar system with east/west collector fields, 2 tanks, thermal energy
transferring between 2 tanks
Description:
The controller calculates the temperature
difference between collector sensor T1, T0 and
sensor T2 of tank 1. If any difference is larger than
or identical to the adjusted switch-on temperature
difference, then the corresponding solar
circulation pump (R1 and /or R2) will be switched
on, the tank 1 will be loaded until the switch-off
temperature difference or the maximum tank
temperature is reached.
Another temperature difference between heat
source T3 of tank 1 and T4 of the object tank 2
can be used to control the pump R3 to load the
tank 2.
Sensor
ports
Description
Relay
outputs
Description
T0
Temperature of collector 1
R1
Solar circulation pump 1
T1
Temperature of collector 2
R2
Solar circulation pump 2
T2
Temperature of tank 1 base
R3
Pump for heat transferring
T3
Temperature of tank 1 upper
R4
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）
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