Grant Combi 70 V3 - External Flue (Green System)

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Combi V3, Combi Max and Vortex Combi models

5 - GENERAL BOILER INFORMATION

Fig. 14 - External flue (Green system)

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Table of Contents2
List of Contents2
Service Log2
About Your Combi V3 or Combi Max Boiler3
Boiler Controls3
Useful Tips3
About Your Fuel3
Combi V3 and Combi Max User Instructions3
- Store Switch4
- Heating Switch4
- Boiler On/Off4
- About Your Vortex Combi Boiler4
Vortex Combi User Instructions4
- Combi V3 and Combi Max Boiler Controls5
- Boiler Controls (Vortex Combi 36 Shown)5
Combi V3, Combi Max and Vortex Combi User Instructions5
- Domestic Hot Water System6
- Lighting Your Boiler6
- Points to Check if Burner Fails to Light6
- Turning off Your Boiler6
- General Notes and Care of Your System7
- Electricity Supply7
- To Re-Pressurise the System by Adding Water7
- Boiler Technical Information8
- Boiler Technical Data - Combi V3 and Combi Max Boilers8
- Boiler Technical Data - Vortex Combi Boilers9
- Boiler Technical Information9
- Combi V3 and Combi Max Oil Boilers Using Class C2 Kerosene10
- Combi V3 and Combi Max Oil Boilers Using Class D Gas Oil10
- Approximate Air Damper Settings10
- Vortex Combi Oil Boilers Using Class C2 Kerosene11
- Flue Gas Analysis11
- Water Schematic of Boiler - Combi V3 and Combi Max12
- Boiler Dimensions - Combi V3 and Combi Max12
- Boiler Dimensions - Vortex Combi13
- Water Schematic of Boiler - Vortex Combi14
- Boiler Description15
- Regulations to Comply with16
- Fuel Supply16
- Fuel Storage16
- Fuel Pipes16
General Boiler Information16
- Single Pipe System17
- Two Pipe System17
- Tiger Loop System18
- Two Pipe Oil Supplies19
- RDB Pump19
- Air Supply20
- Air Supply for Room Sealed Balanced Flue Boilers20
- Conventional Flue System - Combi V3 and Combi Max21
- Combustion and Ventilation Air Supply for Conventional Flue Boilers21
- Conventional Flue System - Vortex Combi22
- Typical Conventional Flue with Brick Chimney22
- Vortex Combi Typical Conventional Flue with Brick Chimney23
- Balanced Flue Options24
- Grant EZ-Fit Flexi Pack Conventional Flue System24
- Contents of Grant EZ-Fit Flexi Pack24
- Extensions24
- External Balanced Flue25
- External Flue (Green System)26
- Frost Protection27
- Clearances for Balanced Flues27
- Boiler Location28
- Water Connections28
- Combi V3 and Combi Max28
- Vortex Combi28
- Sealed System29
- Sealed Central Heating System29
- To Use the Water Hardness Kit30
- Underfloor Heating Systems31
- Pipework Materials31
- Condensate Disposal - Vortex Combi31
- Condensate Trap31
- Method of Operation32
- Purpose Made Condensate Soakaway32
- How Vortex Condensing Boilers Work33
- Vortex Heating System Design Considerations33
- Central Heating Mode33
- Domestic Hot Water Mode33
- General Boiler Information34
- Unpack the Boiler34
- Low Level Balanced Flue34
Boiler Installation34
- High Level Balanced Flue (White System)35
- High Level and Vertical Balanced Flue35
- High Level Balanced Flue35
- Make the Water Connections36
- Vortex Combi Water Connections36
- Combi V3 and Combi Max Pipe Positions36
- Vortex Combi Pipe Positions36
- Connect the Power Supply37
- Vortex Combi Conventional Flue Adaptor37
- Expansion Vessel37
- Connect a Conventional Flue37
- Connection of External Remote Timeswitch38
- Optional Grant Internal Timer38
- Connect the Fuel Supply39
- RDB Burner Components39
- Completion40
Fill and Vent the System40
Commissioning41
Important Notes Prior to Servicing43
Information for the User43
Boiler Servicing43
- Combi 90 V3 Baffle Positions44
- Dismantling Prior to Servicing44
- Combi 70 V3 Baffle Positions44
- Cleaning the Boiler44
- Vortex Combi 2645
- Vortex Combi 3645
- Cleaning the Burner46
- Vortex Combi Turbulators46
- Combi V3 and Combi Max Components/Connections47
Boiler Components47
- Control Panel Wiring Diagram - Combi V3 and Combi Max49
- Functional Flow Wiring Diagram - Combi V3 and Combi Max49
- Wiring Diagrams50
- Control Panel Wiring Diagram - Vortex Combi50
- Functional Flow Wiring Diagram - Vortex Combi50
- Grant Programmable Room Thermostat51
- Typical Connection of External Timer51
- Connection of Grant Remote Wall Mounted Mini Programmer51
- Boiler will Not Start52
- Burning Lights but Goes to Lock-Out52
- Burner Not Lighting52
Fault Finding52
- Riello RDB Burner Fault Finding58
- Riello RDB Burner - Exploded View59
Burner Spares59
- Burner Heads60
- Insulation Materials61
- Sealants61
- Kerosene and Gas Oil Fuels (Mineral Oils)61
Health and Safety Information61
EC Declaration of Conformity62

Grant Combi 70 V3 - External Flue (Green System)

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