Ascent Combi and Ascent Plus Combi Gas – January 2024 1
PLEASE READ THIS FIRST
Special Attention Flags
Please pay particular attention to the following flags when you see them throughout this manual.
DANGER: Notifies you of hazards that WILL cause severe personal injury, death or substantial property damage.
WARNING: Notifies you of hazards that CAN cause severe personal injury, death or substantial property damage.
CAUTION: Notifies you of hazards that WILL or CAN cause minor personal injury or property damage.
NOTICE: Notifies you of special instructions on installation, operation, or maintenance that are important, but not
normally related to injury or property damage hazards.
Best Practice: Suggestions of best practices developed over many years of experience by professionals.
WARNING: Installation and service must be performed by a qualified installer, service agency, or gas supplier.
Retain this manual for use by your qualified service technician only. Should you observe unusual or
abnormal operation of the burner or boiler, contact your qualified service technician immediately. Do not
attempt to service or repair this product yourself.
WARNING: If the information in this manual is not followed exactly, a fire or explosion may result, causing property
damage, personal injury or loss of life.
WARNING: Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other gas
appliance.
Provide unobstructed combustion air openings sized and located per boiler manual and applicable
codes.
WHAT TO DO IF YOU SMELL GAS
Do not try to light any appliance.
Do not touch any electrical switch; do not use any phone in your building.
Immediately call your gas supplier from an outside phone.
Follow the gas supplier’s instructions.
If you cannot reach your gas supplier, call the fire department.
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