ECOTRONIC tech
103
Cod. 3540V010 - 07/2010 (Rev. 00)
EN
System 2:
with 1 tank, 1 circulating pump and 3 probes.
(No modulating circulating pump, No calculation, With boiler activation/deactivation).
- Assigning of terminals and main diagram.
1
2
3
4
5
6
7
8
9
10
11
12
25
24
23
22
21
20
15
14
13
S3
P1
NTC
B
PT1000
C
230 Vac
50 Hz
S1
S2
FREE
CONTACT
PT1000
D
NC
COM
NO
FREE CONTACT
19
18
17
16
AUX 2 (230 Vac)
AUX 1 (230 Vac)
AUX 2
AUX 1
L
N
L
N
T1
OUT
IN
IN
OUT
During normal operation, if the temperature of Hot Water Tank Sensor S2 is lower than the Thermostat activation
temperature parameter value (Installer parameter, default equal to 40°C) then the ECOTRONIC tech regulator
activates the output Relay connected to terminals 13-14-15 (FREE CONTACT on the 11-pin connector); whereas
if the temperature of Hot Water Tank Sensor S2 is higher than the Thermostat deactivation temperature parameter
value (Installer parameter, default equal to 45°C) then the ECOTRONIC tech regulator deactivates the output
Relay connected to terminals 13-14-15 (FREE CONTACT on the 11-pin connector).
The contact is voltage-free and with exchange contact: NC 14-15, NO 13-14.
To signal the boiler activation mode, the Contact symbol will be lit.
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
S1 (D)
Upper tank
PT1000 probe
T1
Activation/deactivation
contact
Boiler
Flow switch/Flowmeter
Necessary
Optional
SOLAR
CIRCULATING
PUMP
Содержание ECOTRONIC tech
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