Bosch BGS80 User's Information Manual
Bosch 80% AFUE Gas Furnace BGS80 Model
4-Way Multipoise Category I Fan-Assisted Furnace
User's Information Manual
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Bosch 80% AFUE Gas Furnace User's Information Manual
Data subject to change
06.2018 | Bosch Thermotechnology Corp.
User's Information Manual Bosch 80% AFUE Gas Furnace | 3
Table of Contents
1 Key to Symbols and Safety Instructions 4
1.1 Key to Symbols 4
1.2 Safety 4
2 Introduction 6
3 Furnace Components 6
4 Operating Your Furnace 7
4.1 Furnace Start-Up 7
4.2 Furnace Shutdown 7
5 Routine Maintenance 8
5.1 Annual Inspection 8
5.2 Filters 8
5.3 Burners 9
5.4 Replacement Parts 9
Bosch Thermotechnology Corp. | 06.2018
Data subject to change
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Bosch 80% AFUE Gas Furnace User's Information Manual
1 Key to Symbols and Safety Instructions
1.1 Key to Symbols
Warnings
Warnings in this document are identifi ed by a
warning triangle printed against a grey background.
Keywords at the start of a warning indicate the type and seriousness
of the ensuing risk if measures to prevent the risk are not taken.
The following keywords are defi ned and can be used in this document:
DANGER indicates a hazardous situation which, if not avoided, will result
in death or serious injury.
WARNING indicates a hazardous situation which, if not avoided, could
result in death or serious injury.
CAUTION indicates a hazardous situation which, if not avoided, could
result in minor to moderate injury.
NOTICE is used to address practices not related to personal injury.
Important information
This symbol indicates important information where
there is no risk to people or property.
1.2 Safety
Please read all instruction in the manual and retain all manuals for future reference.
INSTALLER: This manual must be left with the equipment user.
USER: Please keep this booklet of information for future reference.
WARNING:
Untrained personnel (homeowners) may only clean and
replace filters and replace fuses as required by basic
maintenance. All other operations, including installation,
repair, and service must be performed by a qualified
installer, service agency, or the gas supplier.
WARNING: FIRE OR EXPLOSION HAZARD
Do not store or use gasoline or other flammable vapors and
liquids in the vicinity of this or any other appliance.
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.
— Leave the building immediately.
— Immediately call your gas supplier from a neighbor’s
phone. Follow the gas supplier’s instructions.
— If you cannot reach your gas supplier, call the fire
department.
Installation and service must be performed by a qualifi ed
installer, service agency, or the gas supplier.
Data subject to change
Do not use this furnace if any part has been under water. A fl ood-damaged
furnace is extremely dangerous. Attempts to use the furnace can result
in fi re or explosion. A qualifi ed service agency should be contacted
to inspect the furnace and to replace all gas controls, control system
parts, and electrical parts that have been wet, or the furnace if deemed
necessary.
WARNING: FIRE OR EXPLOSION HAZARD
The furnace is designed and approved for use with Natural
Gas and (LP) Propane Gas ONLY.
DO NOT BURN ANY LIQUID FUEL OR SOLID FUEL IN THIS
FURNACE.
Burning any unapproved fuel will result in damage to the
furnace's heat exchanger, which could result in Fire, Personal
Injury, and/or Property Damage.
06.2018 | Bosch Thermotechnology Corp.
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