Potterton SIRIUS THREE FS 50 User Manual

3.2 Technical data
Tab.1 General
Boiler speed Unit
SIRIUS
THREE FS
50
SIRIUS
THREE FS
70
SIRIUS
THREE FS
90
SIRIUS
THREE FS
110
Useful heat output at 80/60°C
Heating mode
Minimum kW 5.0 7.2 9.4 11.4
Useful heat output at 80/60°C
Heating mode
Maximum kW 45 65 85 102
Useful heat output at 50/30 °C
Heating mode
Minimum kW 5.4 7.8 10.2 12.3
Useful heat output at 50/30 °C
Heating mode
Maximum kW 48.6 70.2 91.8 110.2
Heat input -
Heating mode
Minimum kW 5.1 7.4
9.7
(1)
11.7
Heat input -
Heating mode
Maximum kW 46.3 66.9 87.4 104.9
Heat input -
Heating mode
Minimum kW 5.6 8.2 10.7 12.9
Heat input -
Heating mode
Maximum kW 51.4 74.2 97.0 116.4
Efficiency at 80/60 °C -
Heating mode under full load
Maximum % 97.4 97.2 97.3 97.2
Efficiency at 50/30 °C -
Heating mode un
der full load
% 105.0 105.0 105.5 105.1
Efficiency - - Return temperature
30°C
Heating mode un
der part load
% 108.4 108.1 108.2 108.1
(1) The heat input with G31 gas is different and is 12.5 kW
Tab.2 Characteristics of the heating circuit
Unit
SIRIUS
THREE FS 50
SIRIUS
THREE FS 70
SIRIUS
THREE FS 90
SIRIUS
THREE FS
110
Water content (excluding expansion vessel) litre 2.81 4.98 8.34 9.83
Minimum operating pressure MPa (bar) 0.05 (0.5) 0.05 (0.5) 0.05 (0.5) 0.05 (0.5)
Maximum operating pressure (MOP) MPa (bar) 0.38 (3.8) 0.38 (3.8) 0.38 (3.8) 0.38 (3.8)
Maximum water temperature °C 85 85 85 85
Maximum operating temperature °C 80 80 80 80
Tab.3 Data on the gases and combustion gases
For gas flow rates at 15°C and
1013.25 hPA
Boiler speed Unit SIRIUS
THREE FS
50
SIRIUS
THREE FS
70
SIRIUS
THREE FS
90
SIRIUS
THREE FS
110
Minimum gas pressure (G20) mbar 17 17 17 17
Nominal pressure (G20) mbar 20 20 20 20
Maximum pressure (G20) mbar 25 25 25 25
Minimum gas pressure (G25) mbar 20 20 20 20
Nominal pressure (G25) mbar 25 25 25 25
Maximum pressure (G25) mbar 30 30 30 30
Minimum gas pressure (G31) mbar 25 25 25 25
Nominal pressure (G31) mbar 37 37 37 37
Maximum pressure (G31) mbar 57.5 57.5 57.5 57.5
Consumption of natural gas (G20) Minimum m³/h 0.54 0.78 1.03 1.24
Consumption of natural gas (G20) Maximum m³/h 4.90 7.07 9.25 11.10
3 Technical specifications
12 7609493 - v08 - 24072018

Potterton SIRIUS THREE FS 50 Specifications

General

Brand	Potterton
Model	SIRIUS THREE FS 50
Category	Boiler
Language	English