ECOTRONIC HiTech
12.3 High Efficiency circulating pump (STRATOS PARA series)
System with one tank, one circulating pump and two probes.
(Modulating circulating pump, No metering, No supplementary heating/No excess heat dissi-
pation).
- Assigning of terminals and block diagram.
S4 S4 - V1 S3 S3 S2 S2 S1 S1
P1
/
256
Symbol Description
F Fuse
P1 Solar circulating pump
R Relay
S1 Probe PT 1000 Solar collector
S2 Probe PT 1000 Lower tank
/
/
/
/
S1
M
Bi
/
/
/
/
/
B
N
code 3542A420 - Rev. 00 - 12/2021
R3 R3 R2 N L N R1 N
/
/
/
R
S2
Symbol Description
256 Modulating circulating pump signal
/
/
/
/
/
/
230 Vac
L
N
F
NC
NA
C
EN
193