Chaffoteaux & Maury System plus FF - 17. Technical Specifications; Boiler Technical Specifications

420010058000 - 09/2006
These boilers are designed to operate with natural gas or LPG. If the type of gas is changed, only a qualified professional is
authorised to carry out this operation.
20. Technical specifications
Model 24 kW FF 30 kW FF
Heating power Pn
10 to 24 kW 12 to 30 kW
Variable tank pre-heating power Pn max
24 kW 30 kW
Category II 2E+3+
Fresh air flow rate required for combustion V 43 m
3
h. 54 m
3
h.
Associated BACD tank capacity 120 150 120 150
Specific domestic hot water flow rate (ΔT: 30 K) D 22,2 l/mn 24,6 l/mn 23,0 l/mn 25,3 l/mn
Minimum central heating circuit flow rate 300 I/h. 300 I/h.
Maximum heating circuit pressure Pw max
3 bar 3 bar
Adjustable heating flow temperature 35 to 85 °C 35 to 85 °C
Adjustable hot water temperature (system plus) 40 to 60 °C 40 to 60 °C
Electric voltage
230 volt, single phase
50 Hz
230 volt, single phase
50 Hz
Electrical power consumption 150 W 150 W
Electrical protection IP X4D IP X4D
Nominal gas flow rate (15 °C-1013 mbar) Gas rate max Gas rate mini Gas rate max Gas rate mini
Qn 26,0 kW 12,0 kW 32 kW 14 kW
G 20 (GN H -Lacq) 34,02 MJ/m
3
at 20 mbar Vr 2,75 m
3
/h 1,27 m
3
/h 3,44 m
3
/h 1,50 m
3
/h
G 30 (Butane) 45,6 MJ/kg at 28-30 mbar Vr 2,05 kg/h 0,95 kg/h 2,56 kg/h 1,12 kg/h
G 31 (Propane) 46,4 MJ/kg 37 at mbar Vr 2,02 kg/h 0,93 kg/h 2,52 kg/h 1,10 kg/h
Nat Prop Nat Prop
Feeder marking Marking NAT Gaz 135 LPG Gaz 80 NAT Gaz 130 LPG Gaz 80
Injector size in 1/100 of mm 135 80 130 80
No. of injectors 11 11 14 14
MTS sa
Le Carré Pleyel
5 rue Pleyel
93521 SAINT DENIS Cedex
Tél. 01 55 84 94 94
Fax 01 55 84 96 10
www.chaffoteaux-maury.fr
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