76
COSMOGAS
Ecotwin
10 - MAINTENANCE
10.26 - Wiring diagram
Figure 10-3 - GS wiring diagram
1 - Main electrical supply 230Vac - 24Vdc
2 - Terminals block (Figure 6-22)
3 - Safety thermostat for overheating
4 - Electric heater
5 - PWM pump
6 - Pump
7 - Digital thermostat max 75°C
8 - Control panel
9 - Control board
10 - 3 way valve
11 - Circuit 2 temperature sensor (TV2)
12 - Circuit 1 temperature sensor (TV1)
13 - Room temperature sensor (Tr)
14 - Heating/Cooling temperature sensor (Tc)
2
1
9
3
4
5
6
7
10
8
12
13
14
15
11
16
17 18 19
20
GND
VCC
PG
B (7)
A (8)
A B
N P PG V+ COM ADJ
PE N L PE N1 L1
N
1
N
11
L1
L1
1
KM
1
V
4
2
G
B
A
3
3
L
3
2
L
3
1
L
3
N
E
P
2
3
L
2
2
L
2
1
L
2
N
E
P
3
P
N
E
P
2
P
N
E
P
1
P
N
E
P
a
N
a
L
L
N
E
P
3
L
2
L
1
L
3
N
E
P
3
L
2
L
1
L
2
N
E
P
COM
1 G 24V
2
COM
COM
COM
COM
COM
ES
CS
HS
t
t
t
PT
1000
PT
1000
N
TC
5K
TUO
TUI
TUP
TUP
COM
TUI
COM
TUO
COM
CN212
TUO
TUI
TUP
TSI
TSO
CN215
WATER
ES CS HS TH
COM
CN213
CN217
485-1
CN216
F0 RE1 RE2
CN207
AS HW SH
T-VAL
CN209
CY WA CO H0
HE
CN210
CN218
PWM
GND IN
OUT
CN202
CN208
CN204
ACN
ACL
EARTH
+24V
GND
CN201
Relay 1
1
7
5
8
Relay 2
7
3
4
8
5
6
KM1 KM2 KM3
N
N
N
1
2
3
4
5
6
7
8
9
COM
OPEN
CLOSE
L33
L23
L13
N
3
L32
L22
L12
N
2
L
N
KM
2
KM
3
N
2
L1
L12
L2
L22
L3
L32
N
2
L1
L13
L2
L23
L3
L33
AH
YL
W
/ GRN
T2 T1 TV2 TV1 TR TC TW
CN211
NTC 5K
PT1000
t
t
t
t
t
NTC 5K
NTC 5K
PT1000
Содержание ECOTWIN
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