Gruppo Ferroli ECOTRONIC tech Instrucciones De Uso E Instalación página 90

ECOTRONIC tech
System 4 "East/West":
(No modulating circulating pump, Calculation, No supplementary heating/No elimination of excess heat).
- Assigning of terminals and main diagram.
A
P1
90
with 1 tank, 2 circulating pumps and 4 probes.
The second accessory NTC probe must
be acquired
1
NTC
A
2
3
NTC
B
4
5
PT1000
C
6
SOLAR
CIRCULATING
7
PT1000
PUMP
D
8
9
10
AUX 2
11
12
AUX 1
S3 S4
B
P2
Cod. 3540V010 - 07/2010 (Rev. 00)
25
230 Vac
50 Hz
24
23
22
21
20
19 L
AUX 2 (230 Vac)
18
N
17
16
15
14
13
S2
S1
EN
Symbol Description
Lower tank
S2 (B)
NTC probe
Solar Collector
S3 (C)
"A" PT1000 probe
Solar
P1
Circulating Pump "A"
Closes in
AUX 2
case of fault
Solar Collector
S4 (D)
"B" PT1000 probe
Solar
P2
Circulating Pump "B"
Solar Return
S1 (A)
NTC probe
Necessary
Optional