Buderus Logano G334X User Manual

Gas central heating boilers

User manual

Logano G334X

Gas central heating boilers

6 720 810 547-00.1T

6 720 811 239 (2014/05) US

Please read carefully before use.

Content

Content

1 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.1 Key to symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.2 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2 Product Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.1 Designated use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.2 Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3 Start-up procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3.1 Operating tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3.2 Turning on heating system . . . . . . . . . . . . . . . . . . . . . . . . 5

3.3 Turn off the gas supply . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

4 Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

4.1 Normal shutdown of the heating system . . . . . . . . . . . . . 6

4.2 Shutting down the heating system in emergencies . . . . 6

5 Environmental Protection / Disposal . . . . . . . . . . . . . . . . . . . . 7

1 Safety instructions

1.1 Key to symbols

Warnings

Warnings in this document are identified 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 defined 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.

Additional symbols

Symbol Function

▶ Sequence of steps
 Cross-reference to another part of the document

• Listing/list entry
– Listing/list entry (2nd level)

Table 1 Symbols

1.2 Safety instructions

Risk of fatal injury from failing to consider your own safety

▶ Never risk your own life! Your own safety is paramount.

If you hear gas leaking

▶ Leave the building immediately.
▶ Prevent others from entering the building.
▶ Notify the police and fire department from outside the building.
▶ From outside the building, call the gas supply company and a

trained and certified installer or service company.

If you smell flue gas

▶ Switch off the heating system by shutting off the emergency shutoff

switch.

▶ Open windows and doors
▶ Call a trained and certified installer or service company

Risk of fire from soldering and welding

When soldering and brazing around combustible and flammable
material:

▶ Take appropriate protective measures.

Logano G334X – 6 720 811 239 (2014/05)2

Safety instructions

1

If you smell gas

▶ Close the gas shutoff valve.
▶ Open windows and doors
▶ Do not operate any electrical switches or telephones.
▶ Do not use any sockets.
▶ Extinguish all open flames.
▶No smoking.
▶ Do not use lighters.
▶ Warn all occupants of the building that they need to leave the

building.
▶ Do not ring doorbells.
▶ From outside the building: Notify the police and fire department.
▶ From outside the building: Call the gas supply company and a

trained and certified installer or service company.

Danger of escaping flue gases

▶ Ensure that the boiler is not be fitted with a barometric damper or a

thermally controlled vent damper downstream of the flue connector.
▶ Do not tamper with, remove, or attempt to repair the flue gas shutoff

switch.
▶ When replacing the flue gas shutoff switch, install the new part in the

original location.
▶ A flue gas shutoff switch tripping more than once indicates a problem

with the flue gas system or chimney which must be repaired

immediately.
▶ Ensure none of the vent pipes and chimneys are damaged or blocked.
▶ Connect only one appliance to each flue gas system or chimney.
▶ The flue gas system must not feed into or through another air

extraction duct.
▶ The flue gas system must be inspected once a year. All parts that

show any signs of damage or corrosion must be replaced.

Danger of explosion of flammable gases.

▶ Work on gas components may be carried out only by a trained and

certified installer or contractor.
▶ Installation, gas and flue gas connections, initial commissioning,

power connection, preventive maintenance and repair may be

carried out only by a trained and certified installer or contractor.

Danger of poisoning

▶ Do not close or reduce combustion air vents.
▶ The boiler must not be operated until all obstructions have been

removed.

Dangers posed by explosive and easily flammable materials

▶ Never use or store easily flammable or combustible materials (e. g.

paper, curtains, clothing, thinners, paints etc.) near the boiler.
▶ It is recommended not to store any items within 16 inches (415 mm)

of the boiler.

Danger from neglecting safety devices.

Hot water may escape from the safety valve when the appliance is
running.
▶ Never shut off safety valves.

Danger of electric shock when the boiler is open.

Before opening the boiler:
▶ Disconnect the heating system from the electrical power supply via

the ON/OFF switch or the appropriate building fuse. It is not
sufficient just to switch off the controller. Power to the controller
must be disconnected.

▶ Take measures to ensure that the heating system cannot be

accidentally reactivated.

▶ Electrical work may be carried out only by qualified and certified

electricians.

Danger due to short-circuits

To prevent short circuits:

▶ Only genuine Buderus wiring replacement parts.
▶ Do not attempt to operate an appliance if any part of it has been

under water.

▶ Replace any appliance that has been under water.

Risk of system damage due to contaminated combustion air supply

▶ Keep the combustion air free of corrosive substances, e.g.

halogenated hydrocarbons from painting operations or beauty
salons.

▶ Keep combustion air free from dust and lint (e. g. from nearby

laundry or agricultural operations).

▶ If clean room air is not available, fresh outdoor combustion air must

be provided.

System damage due to improper operation

▶ Use the boiler only for its intended purpose.
▶ Operate the boiler only if it has been installed and maintained per the

instructions provided in the Installation Manual.

▶ Do not attempt to operate an appliance if any part of it is not in

working order or is damaged.

▶ Use only original spare parts. The use of parts not supplied by the

manufacturer may cause damage to the boiler, other property and
personal injury. Also, boiler damage caused by the use of
unauthorized parts is not covered by the warranty.

▶With sealed combustion appliances: do not cover or reduce the size

of air inlet and ventilation openings in doors, windows and walls.

▶ If draft-proof windows are installed, ensure an adequate supply of

combustion air.

Notice regarding regulations and legal requirements

▶ The installation must comply with all applicable national, state, and

local codes, rules, and regulations.

▶ The operator is responsible for the operational safety and regulatory

compliance of the heating system.

▶ In the Commonwealth of Massachusetts, the appliance must be

installed by a licensed plumber or gas fitter.

Instructing the owner/operator

▶ The installer must instruct the owner and operator on the

functionality of the components and the proper operation of the
boiler and the heating system.

▶ Upon completion of the installation, these instructions should be

handed to the owner and operator of the appliance.

▶ Inform the owner/operator that they must never carry out any

modifications or repairs.

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