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Describes appliance use and the meaning of the GSX model designation.
Provides crucial safety advice regarding gas detection and emergency actions.
Lists critical warnings regarding material damage, injury, and warranty voidance.
Details necessary checks and connections for the gas supply prior to operation.
Instructions for placing the unit and installing flue gas/air supply systems.
Requirements for gas line installation and compliant electrical hookup.
Instructions for thermostat installation and guidance on choosing bus cables.
Details start-up/shutdown procedures, operational checks, and thermostat/pressure verification.
Instructions for adjusting gas control unit settings for optimal combustion.
Instructions for temporary and long-term shutdown of the heater.
Overview of required annual maintenance and detailed steps for cleaning the appliance.
Lists main appliance parts and troubleshooting error codes with descriptions.
Visual representation of electrical connections for the GSX 20-75 model.
Visual representation of electrical connections for the GSX 90 model.
Guidelines for installing flue gas and air supply systems using brackets.
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