ECOTRONIC HiTech
System with one tank, one circulating pump and three probes.
(Modulating circulating pump, no metering, with supplementary heating).
- 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
S3 Probe PT 1000 Upper tank
T1 Consent for excess heat dissipation
256 Modulating circulating pump signal
/
/
/
/
/
/
/
/
/
S1
M
Bi
/
/
/
/
/
B
N
S3
S2
/
/
/
/
/
/
/
/
/
/
/
code 3542A420 - Rev. 00 - 12/2021
R3 R3 R2 N L N R1 N
/
/
/
/
/
/
L
F
NA
R
C
/
/
/
/
/
/
/
/
/
230 Vac
/
/
/
/
/
/
/
/
/
N
NC
EN
T1
195