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General| Model | Grant Combi 90 |
|---|---|
| Category | Boiler |
| Boiler Type | Combi |
| Fuel Type | Oil |
| Output | 26 kW |
| Efficiency | 90% |
Instructions for accessing and interacting with the boiler's control panel.
Step-by-step guide for safely starting and igniting the boiler.
Procedures for shutting down the boiler for short or extended periods.
Common checks and steps to resolve burner ignition failures.
Detailed physical dimensions and layout of the boiler unit.
Key technical specifications, performance metrics, and operational parameters.
Technical data specific to the Class C2 kerosene fuel variant.
Technical data for Class D gas oil with conventional flue.
Information on adjusting air damper settings for optimal combustion efficiency.
Diagram illustrating the water flow and component connections within the boiler.
Overview of the boiler's design, primary functions, and system compatibility.
Information regarding the packaging and delivery of the boiler module.
Lists relevant building regulations, standards, and requirements for installation.
Details regarding the fuel supply connections and types.
Explains how the boiler operates for central heating and domestic hot water.
Specifics on the domestic hot water system, flow rates, and connections.
Instructions for using the provided water hardness test kit and interpretation.
Details on the frost protection thermostat and system precautions.
Guidelines for selecting a suitable and safe location for the boiler installation.
Recommended materials and types of pipework for system connections.
Step-by-step instructions for safely unpacking the boiler unit.
Pre-installation checks and preparation of the site and utilities.
Information on fitting a conventional flue system as an alternative.
Details on connecting the cold mains, hot water, and heating pipework.
Guidance on checking and setting the expansion vessel pressure.
Instructions for wiring the boiler's electrical power supply safely.
How to connect the Grant remote wall-mounted mini programmer.
Diagram showing the electrical connections within the boiler control panel.
Illustrates the functional flow of electrical signals and power circuits.
Wiring schematic for connecting the mini programmer to the boiler.
Details on wiring a programmable room thermostat for heating control.
