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3. Technical description
Boiler type
Maximum counter pressure
Characteristics of the heating circuit
Water content
Water operating pressure
Water operating pressure (PMS)
Water temperature
Operating temperature
Manometric height central heating circuit (∆T = 20K)
Characteristics of the domestic hot water circuit
Specific hot water flow D (60 °C)
Specific hot water flow D (40 °C)
Domestic water resistance
Flow rate threshold
Water content
Operating pressure (Pmw)
Electrical characteristics
Power supply voltage
Power consumption - Full load
Power consumption - Part load
Power consumption - Standby
Electrical protection index
Other characteristics
Weight (empty)
Acoustic level at 1 meter at high speed
(1) Front panel removed
14
Pa
l
minimum
kPa (bar) 80 (0,8)
maximum
kPa (bar) 300 (3,0)
maximum
°C
maximum
°C
mbar
l/min
l/min
mbar
minimum
l/min
l
maximum
kPa (bar) -
VAC
maximum
W
Factory setting
W
maximum
W
maximum
W
Total
kg
(1)
kg
Mounting
dBA
3.4.1.
Sensor characteristics
Outside sensor
Outlet sensor circuit B+C
Domestic hot water sensor
-20 °C 2392 ¨
0 °C
-16 °C 2088 ¨
10 °C
-12 °C 1811 ¨
20 °C
1562 ¨
-8 °C
25 °C
1342 ¨
-4 °C
30 °C
1149 ¨
0 °C
40 °C
984 ¨
4 °C
50 °C
842 ¨
8 °C
60 °C
720 ¨
12 °C
70 °C
616 ¨
16 °C
80 °C
528 ¨
20 °C
90 °C
454 ¨
24 °C
MCA 15 - MCA 25 MCA 25/28 MI
MCA 15
MCA 25
80
120
1,7
1,7
80 (0,8)
300 (3,0)
110
110
90
90
545
295
-
-
-
-
-
-
-
-
-
-
-
230
230
101
116
63
76
25
25
4
4
IPX4D
IPX4D
43
43
36
36
35
42
Boiler sensor
Return sensor
32014 ¨
-20 °C 98932 ¨
19691 ¨
-10 °C 58879 ¨
12474 ¨
0 °C
10000 ¨
10 °C
8080 ¨
20 °C
5372 ¨
25 °C
3661 ¨
30 °C
2535 ¨
40 °C
1794 ¨
50 °C
1290 ¨
60 °C
941 ¨
70 °C
80 °C
29/04/2010 - 300022146-001-B
MCA 25/28 MI
130
1,7
80 (0,8)
300 (3,0)
110
90
295
8,2
13,7
490
1,2
0,33
800 (8,0)
230
124
76
25
4
IPX4D
44
37
44
36129 ¨
22804 ¨
14773 ¨
12000 ¨
9804 ¨
6652 ¨
4607 ¨
3252 ¨
2337 ¨
1707 ¨
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