Table Of Contents - Keston Qudos 28s User, Installation And Servicing Instructions

Table of Contents

Table Of Contents2
Handling Instructions4
List Of Contents4
Recommended Handling Procedure4
User Instructions6
Maintenance6
Servicing6
Clearances6
Introduction6
Boiler Setup And Operation6
Fault Modes7
Precautions7
Frost Protection7
Safety Information8
Benchmark Initiative8
General Instruction9
Description9
Boiler Schematic10
Related Documents12
Physical Data13
Optional Accessories13
Performance Data14
Boiler Location16
Dimensions And Minimum Clearances16
Service Connections16
Position16
Electrical16
Electrical Connections17
External Wiring & Controls18
Enhanced Control Options18
Room Compensation (Opentherm)18
Weather Compensation (Ext Sensor)18
Remote Fascia Panel19
Boiler Size Selection19
Gas Supply19
Water Systems19
Air Vent Points20
Sealed Systems Diagram20
Boiler By-Pass Piping21
Air Elimination21
System Pump21
Hot Water System22
Filling The System22
Design22
Flue System22
Air Supply22
Maximum Lengths23
Slope23
Flue & Air Maximum Length Example23
Terminations24
Clearances From Wall24
Distance Between Flue Outlet & Air Inlet24
Compartment Installation25
Condensate Drainage25
Installation Of The Boiler26
Wall Mounting Bracket26
Mounting The Boiler26
Assembly Practice26
Installing Flue And Air Pipes26
Electrical Supply28
Water System28
Twin Thermostat Operation With Weather Compensation29
Modulation Of Dhw Generation29
Solar Control30
Exchanging A Boiler30
Electrical Installation30
Initial Firing31
Combustion Testing31
Commissioning Of The Boiler32
Initial Flushing32
Lp Gas32
Hot Flushing33
Combustion Testing - Mandatory Check33
Checking The Gas Pressure34
Timing The Gas Meter35
Handing Over To The User35
Fault Finding36
Electrical Control Sequence36
Quick Reference37
Normal Operation37
Installer Information Mode (Shp)37
Error Codes38
Error History39
Functional Flow Wiring Diagram40
Electrical Wiring Diagram41
Illustrated Wiring Diagram42
Exploded Assembly Diagrams43
Boiler Controls Assembly43
Waterway, Condensate & Flue Assembly44
Air - Gas Assembly46
Casing Assembly47
Exploded Diagrams Parts Reference List48
Routine (Annual) Servicing49
Pre-Service Checks49
Recommended Routine Service49
Replacement Of Parts51
Access51
Replacement Procedure51
Electrical Components51
Boiler Flow And Return Thermistors52
Cabinet Temperature Sensor52
Flue Thermistor52
Pressure Sensor52
Combustion Blower53
Gas Control Valve /Venturi Assembly53
Flow Thermostat53
Spark Ignition/Flame Detection Electrode53
Heat Exchanger54
Condensate Trap54
Pump54
Expansion Vessel54
Short Spare Parts List56
Gas Boiler Commissioning Checklist59
Service Interval Record60