87
71.06199.02 - EN
INSTALLATION INSTRUCTIONS
36. TECHNICAL SPECIFICATIONS
As DE DIETRICH constantly strives to improve its products, it reserves the right to modify the information contained in this document at
any time and without prior notice. This document is issued purely for the sake of information and should not be considered as a contract
with third parties.
Model MS 24 BIC FF 24 BIC
Category
II2H3P II2H3P
Rated heat input kW 25,8 25,8
Reduced heat input kW 11,9 11,9
Rated heat output kW 24 23,3
kcal/h 20.600 20.000
Reduced heat output kW 10,4 10,4
kcal/h 8.900 8.900
Useful efciency according to directive 92/42/EEC —
★★★ ★★
Max. water pressure in CH system bar 3 3
Expansion vessel capacity l 7,5 7,5
Expansion vessel pressure bar 1 1
Storage boiler capacity l 42 42
DHW max. water pressure bar 7 7
DHW min. dynamic water pressure bar 0,15 0,15
Minimum DHW ow l/min 2,0 2,0
DHW output at ∆T=25 °C l/min 13,3 13,3
DHW output at ∆T=35 °C l/min 9 9,5
Specic output (*) l/min 17,7 17,7
Temperature range in heating system °C 30/85 30/85
Temperature range in DHW system °C 35/60 35/60
Type — C12-C32-C42-C52-C82-B22 B
11BS
Coaxial ue duct diameter mm 60 -
Coaxial air duct diameter mm 100 -
2-pipe ue duct diameter mm 80 -
2-pipe air duct diameter mm 80 -
Flue duct diameter mm -
125
Max. ue mass ow rate kg/s 0,021 0,021
Min. ue mass ow rate kg/s 0,021 0,019
Max. exhaust temperature °C 135 110
Min. exhaust temperature °C 108 85
NOx Class
— 3 3
Type of gas
— G20 G20
— G31 G31
Natural gas supply pressure mbar 20 20
Propane gas supply pressure mbar 37 37
Power supply voltage V 230 230
Power supply frequency Hz 50
50
Rated power supply W 135 80
Net weight kg
61 51
Dimensions Height mm 950 950
Width mm 600 600
Depth mm 466 466
Protection against humidity and water (**) IP X5D IP X5D
(*) according to EN 625 - (**) according to EN 60529
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