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Safety instructions

Logano G234X – 6 720 811 233 (2017/02)

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Safety instructions

1.1

Key to symbols

Warnings

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

Additional 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.

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.

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.

This symbol indicates important information where 
there is no risk to people or property.

Symbol

Function

Sequence of steps

Cross-reference to another part of the document

Listing/list entry

Listing/list entry (2nd level)

Table 1   Symbols

Содержание G234X/38

Страница 1: ...em is carried out by an unqualified person this may result in a fatal injury or property damage Follow the instructions in this installation and maintenance manual exactly If you require assistance or...

Страница 2: ...ting the flue connector 14 5 7 1 Check openings for combustion air supply and venting 14 5 7 2 Requirements for connection to chimneys or flue gas systems 15 5 7 3 Installing the flue pipe 16 5 7 4 Co...

Страница 3: ...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 replac...

Страница 4: ...ns or repairs 2 Product Description This installation and maintenance manual contains important information for the safe and correct installation initial commissioning and maintenance of this boiler T...

Страница 5: ...fashion Dispose of any components of the heating system that require replacement in an environmentally responsible fashion at an approved landfill Notice regarding environmental protection and dispos...

Страница 6: ...0 11 16 25 10 16 2 10 16 38 7 16 729 465 137 147 348 650 66 1034 975 6 720 806 028 02 1T Boiler size Unit 38 5 45 5 55 6 64 7 Ignition heat load MBTU hr 160 187 228 266 kW 46 9 54 8 66 8 78 0 Nominal...

Страница 7: ...r of injectors Main gas orifice identification Rated orifice pressure for natural gas 0 8500 ft 0 2591 m In W C mbar 38 3 3 70 3 0 7 6 45 3 3 70 4 1 10 4 55 4 3 50 4 6 11 5 64 4 3 80 4 4 10 9 Table 4...

Страница 8: ...boiler and roll it on additional pipes to the installation location Fig 5 Place the boiler in its final position Fig 5 Transporting the boiler on rollers NOTICE Risk of system damage from impact shoc...

Страница 9: ...l the boiler both horizontally and vertically using a spirit level Insert metal shims underneath if necessary Fig 7 Leveling the boiler example DANGER Danger posed by explosive and combustible materia...

Страница 10: ...e right side NOTICE Risk of boiler damage due to moisture Protect the individual components of the control system and the ignition system from damp dripping water water spray rain during installation...

Страница 11: ...le regulations Mount an ON OFF switch near the boiler Fig 10 Main power switch by customer DANGER Risk of fire from flammable materials Maintainaclearanceof2inches 51 mm frompipes carrying hot water a...

Страница 12: ...l code We recommend installing a manual shutoff valve in the main gas pipe to the boiler The gas pipes must be fastened outside the boiler The gas supply pipe is designed for a gas connection on the r...

Страница 13: ...ersionkitsforconvertingtheboilerfromnaturalgas to propane gas can be obtained from Bosch Do not attempt to convert the appliance without the approved Buderus parts and the relevant technical documenta...

Страница 14: ...building codes In Canada the regulations in accordance with CAN CSA B 149 1 and 2 Installation Codes apply NOTICE System damage due to faulty safety valve Do not install the safety valve until the lea...

Страница 15: ...the outside through vertical ventilation ducts each opening must have a minimum cross section of one square inch per 2000 Btu h 1100 mm2 kW of the total burner output of all gas fired appliances insi...

Страница 16: ...oles provided in the vent damper 1 Fasten vent damper to the flue connector adapter with three 3 corrosion resistant sheet metal screws A Seal all unused openings of the common flue gas system B Perfo...

Страница 17: ...s are permitted to carry out electrical work Beforeopeningtheappliance Disconnectitfromthe power supply via the ON OFF switch or the appropriate building fuse Take measures to ensure that the heating...

Страница 18: ...lose the gas shutoff valve seal the leaks and repeat step 6 8 Close the gas shutoff valve Remove the screw plug from the gas supply pressure test point 2 on the gas valve in order to measure the gas s...

Страница 19: ...and subsequent incorrect operation Risk of fire and explosion from failure to observe the startup instructions Read the startup instructions carefully before commissioning DANGER Risk of fatal injury...

Страница 20: ...32 4 mbar Record the measured values in the commissioning report page 23 11 Check nozzle pressure Set the orifice pressure according to Table 11 while the boiler is operating To do so remove the safet...

Страница 21: ...21 Disconnecttheheatingsystemfromthepowersupply Openthegas shutoff valve Switch on the power supply for the appliance A normal operating cycle must follow If the gas valve operates correctly Proceed t...

Страница 22: ...4 Fig 28 Checking temperature control 1 Adjustment keypad 6 6 Shutting off gas supply to boiler Set the room thermostats to the lowest setting Disconnect the heating system from the power supply befor...

Страница 23: ...rifice pressure and adjust if necessary inches W C or mbar Page 20 Meas value _____________________________ Unit _____________________________________ 7 Leak test during operation Check ignition flame...

Страница 24: ...gulations are strictly observed To protect the environment we use the best possible technology and materials taking into account economic points of view Packaging method For the packaging we participa...

Страница 25: ...e boiler for cleaning Shut down the heating system Section 7 1 page 24 Remove front wall of boiler Fig 18 page 18 Turn the gas valve ON OFF knob 1 clockwise to the OFF position Do not use excessive fo...

Страница 26: ...on the studs Fig 32 Removing the burner 1 Retaining nuts 2 Studs with spacers 9 5 2 Cleaning the boiler with brushes mechanical cleaning Remove the boiler casing and thermal insulation check for damag...

Страница 27: ...ning the burner Remove burner Section 9 5 1 Check burner rods for dirt If necessary clean burner as described below Unscrew pilot burner unit Fig 35 1 from burner Disconnect pilot gas line 3 from pilo...

Страница 28: ...any other flammable or corrosive vapors and liquids Complete the maintenance log to confirm that all maintenance work has been carried out page 31 Sign the maintenance log and familiarize the owner w...

Страница 29: ...the If everything is OK replace pilot assembly No Heat requirement ended system switches off flue baffle closes End of troubleshooting Repeat procedure until heating system operates properly On model...

Страница 30: ...n flame Specified thermostat value control reached Main and ignition gas valves close gas burners ex tinguished vent damper if installed closes Ignition burner operation Ignition flame burns automatic...

Страница 31: ...ge 18 ___________ inches W C ___________ inches W C 8 Check for leaks during operation Page 18 9 Check the pilot burner flame Page 20 10 Check the main burner flame Page 21 11 Check the vent damper Pa...

Страница 32: ...Blocked vent switch Intermittent pilot dual valve combination gas control VR8304 Pilot burner Honeywell Main valve Pilot valve green blue white red GND MV MV PV GND PV MV PV MV 24V 24V 4 3 2 1 Ref no...

Страница 33: ...ulator To Pilot Burner Spark Gas valve Main Pilot PV PV MV GND MV S8600H GND PV PV MV MV 24V 24VGND K1 TR High Limit Flame roll out safety shutoff switch K2 B2 L2 N L 24V AWG 18 WIRE 120 VAC Wiring Sc...

Страница 34: ...10 Logano G234X 6 720 811 233 2017 02 34 Notes...

Страница 35: ...10 Logano G234X 6 720 811 233 2017 02 35 Notes...

Страница 36: ......

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