Name: Grant Combi 70 V3
Brand: Grant
Rating: 5 (1 reviews)

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Combi V3, Combi Max and Vortex Combi models

4 - BOILER TECHNICAL INFORMATION

Fig. 4

Water schematic of boiler - Vortex Combi

4.10

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 User Manual

Table of Contents

Questions and Answers:

Grant Combi 70 V3 Specifications

Related product manuals

Brand	Grant
Model	Combi 70 V3
Category	Boiler
Language	English