DeDietrich MCR 24, Технические инструкции

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7
08/06/06 - 300008460-001-B MCR 24, 24/28 MI, 30/35 MI, 34/39 MI
4 Technical data
1 mbar = 100 Pa - 1 daPa ~ 1 mm H
2
O
Cold water temperature: 10 °C; Domestic hot water temperature:
85 °C
Boilers MCR 24 MCR 24/28MI MCR 30/35MI MCR 34/39MI
Nominal useful output 40/30 (Heating mode) (min./max) kW 6.3/25 6.3/25 6.6/31.3 6.8/35.5
Nominal useful output 80/60 (min./max) kW 5.5/23.6 5.5/23.6 5.7/29.5 5.9/33.3
Nominal useful output (DHW mode) (min./max) kW - 27.4 34.3 38.2
Nominal input power (heating and DHW modes) kW 24/24 24/28 30/35 34/39
Minimum useful output 40/30 (Heating mode) kW 6.3 6.3 6.6 6.8
Minimum input power (heating and DHW modes) kW 5.8 5.8 6.1 6.3
Gas flow rate à Pn (à 15°C - 1013 mbar):
Natural gas H
Natural gas L
Propane
kW
m
3
/h
m
3
/h
Kg/h
24
2.4
2.8
1.9
24
2.4
2.8
1.9
35
3.5
4.1
2.7
39
3.9
4.5
3.0
PCI efficiency, Load and water temperature efficiency:
100% Nominal power, Average temperature: 70 °C
100% Nominal power, Return temperature: 30 °C
30% Nominal power, Return temperature: 30 °C
%
%
% 98.3
104.4
108.7
98.3
104.4
108.7
98.2
104.4
109.7
98
104.4
110.5
Maximum temperature (Safety thermostat cut-off) °C 110 110 110 110
Losses when off ( ∆ T = 30 °C) W 30 30 29 28
Losses through the outer casing % 1.1 1.1 0.9 0.5
Water capacity l 1.7 1.8 2 2.2
Weight without water, without mounting frame, without cladding kg 29 30.5 32 31.5
Specifications of the heating circuit
Nominal water flow ( ∆ T = 20 K) l/h 1.03 1.03 1.29 1.47
Rated net head (
∆
T = 20 K) mbar >200 >200 >200 >200
Flow temperature °C 75 75 75 75
Maximum pressure bar 3 3 3 3
Expansion chamber l 8 8 8 -
Initial pressure of the expansion tank bar 1 1 1 1
Minimum operating pressure bar 0.8 0.8 0.8 0.8
Domestic hot water specifications
Instruction set outlet temperature °C 55 55 55 55
Specific hot water flow (
∆
T = 30 K) l/min - 14 16 19
Nominal max cold water pressure bar 8 8 8 8
Minimum pressure (11 l/min) bar - 1.4 0.4 0.4
Combustion products circuit
Connecting
diameter
(mm)
60/100 60/100 60/100 60/100
Mass flue gas flow rate (min./max) Kg/h 10/40 10/47 10/59 10/62
Flue gas temperature 80/60 °C 78 78 74 71.5
Pressure available at the flue gas nozzle Pa 50 100 100 140
Condensation water pH 50/30 - 1-7 1-7 1-7 1-7
Electrical specifications
Power supply voltage (50 Hz) V 230 230 230 230
Power consumption W 115 115 150 180
Electrical output circulating pump W 90 90 125 135
Auxiliary electrical output (Nominal power, ex circulating pump) W 25 25 25 45
Insulation class IPX4D IPX4D IPX4D IPX4D