en-US/C
A
13
The controller compares the temperature at sensor
S1 to the temperatures at sensors S2 and S4. If the
measured temperature differences are higher than
the adjusted switch-on temperature differences, the
pump (R1 and/or R2) will be activated and the cor-
responding tank will be loaded up to the adjusted
maximum temperature at most.
System 3
2-tank solar system with pump logic
Sensor/
terminal
Designation
Description
S1
TCOL
Temperature collector
S2
TST1B
Temperature tank 1 bottom
S3
Optional sensor for measure-
ment purposes or options
S4
TST2B
Temperature tank 2 bottom
S5
Optional sensor for measure-
ment purposes or options
V40
Relay
Description
R1
Solar pump tank 1
R2
Solar pump tank 2
R3
optional:
Thermal disinfection
Parallel relay
Heat dump
R4
Содержание SCU345
Страница 71: ...en US CA 71 Notes ...