Owner's manual

7 Technical specifications
7.1 Technical specifications
Boiler type MCA 15 MCA 25 MCA 25/28 MI
General
Flow rate setting Adjustable Modulating, Start/Stop, 0 - 10 V
Nominal output (Pn)
Heating System (80/60 °C)
minimum-maximum kW 3,0 - 14,5 5,0 - 24,1 5,0 - 24,1
Factory setting kW 14,5 24,1 19,4
Nominal output (Pn)
DHW System
minimum-maximum kW - - 5,0 - 28,6
Factory setting kW - - 28,6
Data on the gases and combustion gases
Gas consumption - Natural gas H (G20) minimum-maximum
m
3
/h
0,33 - 1,59 0,55 - 2,65 0,55 - 2,96
Gas consumption - Natural gas L (G25) minimum-maximum
m
3
/h
0,38 - 1,85 0,64 - 3,08 0,64 - 3,45
Gas consumption - Propane G31 minimum-maximum
m
3
/h
0,13 - 0,61 0,21 - 1,02 0,21 - 1,15
NOx-Emission per year (n =1) mg/kWh 33 38 38
Characteristics of the heating circuit
Water content l 1,7 1,7 1,7
Water operating pressure (PMS) maximum kPa (bar) 300 (3,0) 300 (3,0) 300 (3,0)
Water temperature maximum °C 110 110 110
Operating temperature maximum °C 90 90 90
Characteristics of the domestic hot water circuit
Specific hot water flow D (60 °C) l/min - - 8,2
Specific hot water flow D (40 °C) l/min - - 13,7
Flow rate threshold minimum l/min - - 1,2
Operating pressure (Pmw) maximum kPa (bar) - - 800 (8,0)
Electrical characteristics
Power supply voltage VAC 230 230 230
Power consumption - Full load
maximum W 88 116 124
Factory setting W 53 72 72
Electrical protection index IPX4D IPX4D IPX4D
Other characteristics
Total weight (empty) kg 43 43 44
Acoustic level at 1 metre at full load dBA 35 42 44
MCA 15 - MCA 25 MCA 25/28 MI 7. Technical specifications
15/06/12 - 300022161-001-01
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