Ferroli ECOTRONIC tech Instrucciones De Uso E Instalación página 132

ECOTRONIC tech
System 3B:
with 1 tank, 1 circulating pump and 4 probes.
(Self-regulating circulating pump, Metering, With excess heat dissipation).
- Assigning of terminals and block diagram.
The second accessory NTC probe must be purchased
P1
Symbol Description
S2 (B) Lower tank NTC probe
S3 (C) Solar collector PT1000 probe
P1 Solar circulating pump
AUX 2 Closes in case of fault
AUX 1 Closes shutter
S4 (A) Solar return NTC probe
S1 (D) Upper tank PT1000 probe
132
1
NTC
A
2
3
NTC
B
4
5
PT1000
C
6
7
PT1000
D
8
9
10
11
12
S3
256
S4
cod. 3540V011 - 03/2017 (Rev. 00)
25
24
23
22
21
20
19
18
17
16
NC
15
FREE
14
CONTACT
COM
FREE CONTACT
13
NO
M Bi B N
S1
S2
Symbol Description
256 The contacts must not be connected and must
R Relay
F Fuse
230 Vac
50 Hz
L
AUX 2
F
(230 Vac)
N
R
L
AUX 1
(230 Vac)
N
T1
be suitably protected
Necessary
Optional
EN
L N
NA NC
C
M B G/V