Technical Specifications - DeDietrich MCR 24 User Manual

7. Technical specifications

7 Technical specifications
7.1 Technical specifications
MCR BIC
Boiler
Heating mode
Domestic hot water mode
Gas flow rate at nominal output (15 °C -
1013 mbar)
LHV efficiency
LHV efficiency
LHV efficiency (92/42/EEC Gas Appliance
Directive)
HHV efficiency
HHV efficiency
HHV efficiency (92/42/EEC Gas Appliance
Directive)
Maximum temperature (Safety thermostat cut-off)
Stand-by losses (ΔT = 30 °C)
Losses through the outer casing
Water content
Weight empty, without mounting frame, without front cover
Heating circuit
Nominal water flow (ΔT = 20 K)
Manometric height (ΔT = 20 K)
Flow temperature
Maximum pressure
Expansion vessel
Initial pressure of the expansion vessel
Minimum operating pressure
Domestic hot water circuit
Instruction set outlet temperature
Specific hot water flow (ΔT = 30 K)
Nominal max cold water pressure
(1) 1 mbar = 100 Pa, 1 daPa = 1 mmWG
(2) Cold water inlet temperature: 10 °C
27
Nominal useful output 40/30 (min / max)
Nominal useful output 80/60 (min / max)
Nominal input power
Minimum input power
Nominal useful output
Nominal input power
Minimum input power
Natural gas H (G20)
Natural gas L (G25)
Propane (G31)
100% of nominal output and average water
temperature in the boiler of 70°C
100% of nominal output and return temperature of
30°C
30% of nominal output and return temperature of
30°C
100% of nominal output and average water
temperature in the boiler of 70°C
100% of nominal output and return temperature of
30°C
30% of nominal output and return temperature of
30°C
(2)
(2)
MCR 24/28 BIC
kW 6.3 /25.3
kW 5.5 / 23.6
kW 24
kW 5.8
kW 27.4
kW 28
kW 5.8
3 2.4
m /h
3 2.8
m /h
Kg/h 1.9
% 98.3
% 104.4
% 108.7
% 88.5
% 94
% 97.9
°C 110
W 30
% 1.1
litres 1.8
kg 61
1.03
3
m /h
> 200
(1)
mbar
°C 75
bar 3
litres 8
bar 1
bar 0.8
°C 60
litres per min. 18
bar 8
170513 - 300024112-001-01