Name: Potterton Sirius two FS 50
Brand: Potterton
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United Kingdom

Installation and service manual

Gas fired floor-standing condensing boiler

Sirius two FS 50

Sirius two FS 70

Sirius two FS 90

Sirius two FS 110

Dear Customer2
Contents3
General Safety Instructions6
If You Smell Gas6
If You Smell Flue Gases6
Recommendations7
Liabilities8
General10
Symbols Used10
Technical Specifications11
Homologations11
Directives11
Technical Data11
Characteristics of the Heating Circuit12
Sensor Specifications13
Flue Gas Sensor13
Outside Sensor13
Dimensions and Connections13
Electrical Diagram15
Description of the Product17
General Description17
Operating Principle17
Gas/Air Setting17
Functional Diagram of a Boiler with a Low-Loss Header18
System in Cascade18
Boilers in Cascad E18
Settings and Safety Devices19
Description of the Safety Devices19
Main Components20
Standard Delivery22
Accessories and Options22
Package References22
Before Installation23
Regulations Governing Installation23
Installation Requirements23
Water Treatment23
Electrical Power Supply24
Circulation Pump24
Pressure Drops24
Choice of the Location25
Ventilation25
Overall Space Needed for the Boiler26
Selecting the Position for the Outside Temperature Sensor28
Recommended Positions28
Transport29
Unpacking and Initial Preparation29
Connecting Diagrams30
Installation34
Preparation34
Accessing the Internal Boiler Components34
Water Connections36
Connection of the Heating Circuit36
Connecting the Expansion Vessel37
Volume of the Expansion Vessel37
Connecting the Condensate Discharge Pipe38
Gas Connection38
Air Supply/Flue Gas Connections39
Classification39
Coaxial Pipes40
Lengths of the Air/Flue Gas Pipes42
Maximum Length of the Connections44
Electrical Connections44
Recommended Cable Cross Section45
Accessing the Terminal Blocks45
Wiring the Terminal Blocks45
Connecting the Wire46
Attaching the Wire46
Power Supply Terminal Block46
Description of the Sensor Terminal Block47
Electrical Connection48
Filling the System51
Filling the Heating System51
Flushing New Systems51
Flushing an Existing Installation51
Completing Installation52
Filling the Siphon52
Commissioning53
Check List before Commissioning53
Commissioning Procedure53
First Time Commissioning53
Gas Settings54
Checking the Electrical Connections54
Checking the Hydraulic Circuit54
Configuring the Fan Speed54
Setting the Air/Gas Ratio55
Maximum Heat Input55
Adapting to Another Gas Type58
Removing the Venturi Unit58
Torque Load58
Checks and Adjustments after Commissioning59
Boiler Settings59
Configuring Control of a Boiler60
Operation62
Use of the Control Panel62
Modifying the User Parameters62
Modifying the Installer Parameters62
Starting up the Boiler63
Stopping the Boiler63
Frost Protection64
Activating the off64
Settings65
List of Parameters65
Shortcuts Menu65
Information Menu65
Menu Set Time and Date66
Menu Operator Section66
Menu Time Program66
Setting the Parameters79
Menus Burner Control79
Setting the Date and Time79
Language Selection80
Changing the Operating Mode81
Forcing Domestic Hot Water Production81
Setting the Room Temperature Set Point82
Modifying the Domestic Hot Water Production Mode82
Maintenance100
Standard Inspection and Maintenance Operations100
Performing the Annual Service100
Removing the Burner100
Checking the Burner103
Check the Combustion106
Troubleshooting110
Error Codes110
Automatic Error Code Clearing111
Clearing Error Codes111
Decommissioning112
Recommissioning Procedure112
Declaration of Conformity113

Potterton Sirius two FS 50 User Manual

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Potterton Sirius two FS 50 Specifications

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Brand	Potterton
Model	Sirius two FS 50
Category	Boiler
Language	English