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System Control - ACVMax: 660Y2800 • B
en
62
EN
FR
NL
ES
IT
DE
PL
RU
PRESET CONFIGURATION 4  PRESTIGE SOLO/EXCELLENCE 3WAY VALVE
Refer to "Accessing the preset configuration page for the Solo/Excel. (3-way valve)" on page
59, to know how to get to the relevant page of the ACVMax controller.
CH2 CH1 Low
Prestige
P4
P3
W
2
W
1
DHW
Electrical board terminals Terminal name --> Connected to
ACV Max
123456
1 2 3 4 5 6
W
W
W
W
W
W
4 5 6
1 2 3
1 2 3
4 6
X15
1 2 3 4 5 6 7 8 9 10
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
X11
6 7 8 9 10
1 2 3 4 5
6 7 8 9 10
1 2 3 4 5
16
15
3 4
1 2
X16
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10 11 12 13 14
W
R
Or
Bk
Bk
V
Bk
42 1 3 2 1 1 2 3 1 2 3 4 5 6
8 9 10 11 12
1 2 3 4 5
13
6
14
7
X2
1 2 3 4 5 6 7 8 9 10
W
R
Y
R
Y
BK
BK
W
6 7 8 9 10
1 2 3 4 5
X3
1 2 3 4 5 6 7 8 9 10 11 12
V
W
R
Bk
7 8 9 10 11
1 2 3 4 5
12
6
X1
R
Bk
Y
Y
Bk
Bk
R
R
W
W
V
Y
Bk
Bk
R
Bk
W
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
W
W
W
W
W
W
W
V
1 2 3 4 5
1 2 3 4 5
8
Bk
2 31
1412 13
X12
X9
P14
123
4
123
456
B
V
B
W
P13
B
Or
123
Bk
B
Y/Gr
W
Br
B
Br
Br
Y/Gr
B
B
1 2 3 4 5 6 7 8
8 7 6 5 4 3 2 1
123
5
F00
X100
N
L
N
L
W
ON / OFF
3
230 V ~ 50Hz
1
N
L
N
L
N
L
2
6
B
Y/Gr
Br
B
Y/Gr
Br
Br
B
Bk
B
Y/Gr
Y/Gr
Y/Gr
Y/Gr
Y/Gr
Y/Gr
Y/Gr
V
B
Y/Gr
W
B
Y/Gr
Br
B
Y/Gr
Br
B
Y/Gr
B
Or
Br
B
Br
Y/Gr
B
X101
18
17
20
19
21
24
4
X10
12
X20
16
25
2 1
1
NTC 5
9
2 1
1
NTC 2
10
2 1
1
NTC 1
11
123
1
21234123456
X7
X4
X6
X5
Bus A
Bus - Ground
Bus B
0-10 Volt - Ground
0-10 Volt - Input
Cascade sensor - Ground
Cascade sensor - Input
NTC 3
NTC 4
1
2
22
23
26
X18
V
W
B
W
B
B
9 10 11 12 13 14 15 16
16 15 14 13 12 11 10 9
X100
7
Y/Gr
Y/Gr
B
W
B
W
B
V
B
Br
Y/Gr
B
Br
B
Br
Y/Gr
P4 P3
FL
27
5AT Fuse
5AT Fuse
5AT Fuse
............. ERR --> Error (Alarm)
............. DHW --> Motorized 3-way valve OPEN
............. CH --> Built-in circulator pump
............. P4 --> P4 pump (CH circuit)
............. Flame --> Motorized 3-way valve CLOSE
............. P3 --> P3 pump (CH1
Low
circuit)
ACV Max
1 2 3 4 5 6
W
W
W
W
W
W
B
Br
4 5 6
1 2 3
1 2 3
4 6
1 2 3 4 5
X15
1 2 3 4 5
1 2 3 4 5 6 7 8 9 10
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
X11
6 7 8 9 10
1 2 3 4 5
6 7 8 9 10
1 2 3 4 5
18
17
3 4
1 2
X16
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10 11 12 13 14
W
R
Or
Bk
Bk
Or
Bk
4 3 2 1 1 2 3 1 2 3 4 5 6
8 9 10 11 12
1 2 3 4 5
13
6
14
7
X2
1 2 3 4 5 6 7 8 9 10
W
R
Y
R
Y
W
6 7 8 9 10
1 2 3 4 5
X3
1 2 3 4 5 6 7 8 9 10 11 12
V
W
Br
R
Br
Or
B
W
R
Bk
7 8 9 10 11
1 2 3 4 5
12
6
X1
Bk
2 31
1615
X12
X9
P14
12
X10
12 3
4
123
456
B
B
V
B
W
W
B
B
P13
B
Or
123
Bk
B
Y/Gr
W
Br
B
Br
Y/Gr
B
1 2 3 4 5 6 7 8
8 7 6 5 4 3 2 1
123456
123
5
F00
X100
W
ON / OFF
3
230 V ~ 50Hz
1
2
6
26
B
Y/Gr
Br
Br
B
Bk
B
Y/Gr
Y/Gr
Y/Gr
Y/Gr
Y/Gr
Y/Gr
Y/Gr
V
B
Y/Gr
W
B
Y/Gr
Br
B
Y/Gr
Br
B
Y/Gr
B
Or
Y/Gr
19
21
20
22
23
24
4
B
W
V
Br
X20
25
X18
STEPPER
PUMP PWM
8
9
5AT Fuse
5AT Fuse
5AT Fuse
R
Bk
Y
Y
R
R
W
W
Bk
Bk
R
Bk
W
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
W
W
W
W
W
W
W
W
Or
Br
R
Br
B
Br
B
Y/Gr
V
1 2 3 4 5
1 2 3 4 5
10
A B C D 2 1
1
NTC 5
11
2 1
1
NTC 2
12
2 1
1
NTC 1
13
26
C
M
M
3 2 1 3 2 1
230 V
Bk
Bk
14
Bk
Bk
123
1
21234123456
X7
X4
X6
X5
Bus A
Bus - Ground
Bus B
0-10 Volt - Ground
0-10 Volt - Input
NTC 3
NTC 4
1
2
V
W
B
W
B
B
9 10 11 12 13 14 15 16
X100
7
Y/Gr
Y/Gr
16 15 14 13 12 11 10 9
B
Br
Y/Gr
B
Br
B
Br
Y/Gr
P4 P3
FL
230 V
............. DHW sensor (NTC3)
............. Optional outdoor temp. sensor (NTC4)
............. Optional room thermostat 1
............. Optional room thermostat 2
ACV Max
123456
1 2 3 4 5 6
W
W
W
W
W
W
4 5 6
1 2 3
1 2 3
4 6
X15
1 2 3 4 5 6 7 8 9 10
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
X11
6 7 8 9 10
1 2 3 4 5
6 7 8 9 10
1 2 3 4 5
16
15
3 4
1 2
X16
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10 11 12 13 14
W
R
Or
Bk
Bk
V
Bk
42 1 3 2 1 1 2 3 1 2 3 4 5 6
8 9 10 11 12
1 2 3 4 5
13
6
14
7
X2
1 2 3 4 5 6 7 8 9 10
W
R
Y
R
Y
BK
BK
W
6 7 8 9 10
1 2 3 4 5
X3
1 2 3 4 5 6 7 8 9 10 11 12
V
W
R
Bk
7 8 9 10 11
1 2 3 4 5
12
6
X1
R
Bk
Y
Y
Bk
Bk
R
R
W
W
V
Y
Bk
Bk
R
Bk
W
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
W
W
W
W
W
W
W
V
1 2 3 4 5
1 2 3 4 5
8
Bk
2 31
1412 13
X12
X9
P14
123
4
123
456
B
V
B
W
P13
B
Or
123
Bk
B
Y/Gr
W
Br
B
Br
Br
Y/Gr
B
B
1 2 3 4 5 6 7 8
8 7 6 5 4 3 2 1
123
5
F00
X100
N
L
N
L
W
ON / OFF
3
230 V ~ 50Hz
1
N
L
N
L
N
L
2
6
B
Y/Gr
Br
B
Y/Gr
Br
Br
B
Bk
B
Y/Gr
Y/Gr
Y/Gr
Y/Gr
Y/Gr
Y/Gr
Y/Gr
V
B
Y/Gr
W
B
Y/Gr
Br
B
Y/Gr
Br
B
Y/Gr
B
Or
Br
B
Br
Y/Gr
B
X101
18
17
20
19
21
24
4
X10
12
X20
16
25
2 1
1
NTC 5
9
2 1
1
NTC 2
10
2 1
1
NTC 1
11
123
1
21234123456
X7
X4
X6
X5
Bus A
Bus - Ground
Bus B
0-10 Volt - Ground
0-10 Volt - Input
Cascade sensor - Ground
Cascade sensor - Input
NTC 3
NTC 4
1
2
22
23
26
X18
V
W
B
W
B
B
9 10 11 12 13 14 15 16
16 15 14 13 12 11 10 9
X100
7
Y/Gr
Y/Gr
B
W
B
W
B
V
B
Br
Y/Gr
B
Br
B
Br
Y/Gr
P4 P3
FL
27
5AT Fuse
5AT Fuse
5AT Fuse
Pump Conguration 4
Flex 4
ERR
Flex 6
P4
Flex 3
P3
Flex 2
DHW
Flex 1
CH
Flex 5
Flame
Error CH1/CH2 CH1 Mix open
CH1/CH2/
DHW
Mix close
High and Low temperature heating circuits, with optional outdoor temperature
sensor and room thermostats, and with DHW circuit.
The room thermostat 1 always controls the low temperature system.
Essential recommendations for the correct operation of the system
Low temperature sensor is not shown here, but make sure to install one to control the
circuit (using the additional wiring made available in the optional wiring kit).
Low temperature cut-out thermostat is not shown here, but make sure to install one to
protect the low temperature circuit (to be connected to X20 terminal, ref. 14 on Prestige
42-50-75-100-120 Solo wiring diagrams and ref. 15 on Prestige 24-32 Solo/Excellence
wiring diagram).
62


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