Table of Contents
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Installation and Service
Instructions
Logano GC 124 II
Gas boiler
WARNING!
Installation, adjustment, modification, operation
or maintenance of the heating system carried out
by unqualified personnel may result in property
damage, personal injury, and loss of life.
The directions of this installation and maintenance
manual must be followed precisely.
Contact a qualified service company, service pro-
vider or the gas company if support or additional
information is required.
CAUTION!
Before placing this boiler in operation observe the
safety instructions of this installation and mainte-
nance manual.
CAUTION!
The operating manual is a component of the tech-
nical documentation handed over to the operator
of the heating system. Discuss the instructions in
this manual with the owner or operator of the heat-
ing system and ensure that they are familiar with all
information required for operation of the heating
system.
In the Commonwealth of Massachusetts
this boiler must be installed by a licensed
plumber or gas fitter.
Keep this installation and maintenance manual
available for future reference.
In the Commonwealth of Massachusetts this boiler
must be installed by a licensed plumber or gas fit-
ter.
C
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Table of Contents
Related Manuals for Buderus Logano GC 124 II
Summary of Contents for Buderus Logano GC 124 II
- Page 1 Keep this installation and maintenance manual available for future reference. In the Commonwealth of Massachusetts this boiler must be installed by a licensed plumber or gas fit- ter. Logano GC 124 II...
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Page 2: Table Of Contents
12 Final start-up procedures ......16 Logano GC 124 II – 6 720 804 440 (2012/11) -
Page 3: Safety Considerations
▶ Immediately correct all faults to prevent system damage. including telephones, plugs or door bells. ▶ Only use original Buderus spare parts. Losses caused by the use of ▶ Close main gas valve. parts not supplied by Buderus are excluded from the Buderus warranty. -
Page 4: Product Description
"Standard for Controls and Safety Devices for Automatically Fired Boilers," ANSI/ASME CSD-1.Carbon monoxide detectors must be installed as specified by the local regulations. The boiler must be serviced annually ( chapter 15, page 20). Logano GC 124 II – 6 720 804 440 (2012/11) -
Page 5: Dimensions And Connections
Table 3 Dimensions/specs for GC124 II For the size and dimensions of the main gas orifices, refer to chapter 16, page 29. 6 720 804 440-03.1T Fig. 3 Pressure drop/boiler Logano GC 124 II – 6 720 804 440 (2012/11) -
Page 6: Scope Of Delivery
Dispose of the packaging material in an environmentally prudent fashion. 6 720 804 440-05.1T Fig. 5 Moving the boiler with dolley or boiler cart. Additional card board for protection. Logano GC 124 II – 6 720 804 440 (2012/11) -
Page 7: Lifting And Carrying The Boiler
30 inches clearance to the ceiling. The installation location and the base must be smooth and horizontal.The boiler may be installed on a flammable base, but not on carpet. Logano GC 124 II – 6 720 804 440 (2012/11) -
Page 8: Connecting The Heating System
6 720 804 440-08.1T Fig. 8 Low-water cut-off installation Boiler Radiator Heating system with low-water cut-of Heating system without low-water cut-off Logano GC 124 II – 6 720 804 440 (2012/11) -
Page 9: Electrical Connections
The relief valve must also be installed in accordance with the requirements of the ANSI/ASME Boiler and Pressure 6 720 804 440-10.1T Vessel Code, Section IV. Fig. 10 ON/OFF switch (emergency shutoff switch) Logano GC 124 II – 6 720 804 440 (2012/11) -
Page 10: Fuel Gas Supply Connection
Incoming line voltage wiring Furnished wiring nuts. 6 720 804 440-13.1T Fig. 13 Gas piping connection to gas valve – right or left side Gas feed Manual shut-off valve Sediment trap Logano GC 124 II – 6 720 804 440 (2012/11) -
Page 11: Installation At High Altitudes
(based on supplied relief 45 psi external thread of the pipe connections. valve) If you wish to convert the boiler to propane, please contact Buderus for 58 psi (with special relief valve) 75 psi the required conversion components. Do not attempt to convert the... -
Page 12: Check Openings For Combustion Air Supply And Venting
The openings have a direct connection or a connection through ventilation ducts to the outside or to rooms that have an unobstructed connection to the outside Logano GC 124 II – 6 720 804 440 (2012/11) -
Page 13: Requirements For Connection To Chimneys Or Venting
4 inch per foot towards the chimney. The flue pipe must be securely fastened to prevent it from hanging. A support must be installed at least every five feet. Fasten every connection with at least three (3) corrosion- Logano GC 124 II – 6 720 804 440 (2012/11) -
Page 14: Placing The Heating System In Operation
Fig. 17 Routing of vent damper wiring ▶ Inform the owner and operator of the heating system Vent damper wiring of any deficiencies in writing. Vent damper wiring strain relief Logano GC 124 II – 6 720 804 440 (2012/11) -
Page 15: Starting Up The Gc124 Ii
6 720 804 440-20.1T Fig. 20 Gas valve ON/OFF knob (shown in ON position) Screw plug for gas pressure measurement port Screw plug for orifice measurement port Ignition gas line connection Logano GC 124 II – 6 720 804 440 (2012/11) -
Page 16: Turning On Heating System
( figure 24, page 17). Turn the adjustment screw Fig. 22 GC124 II clockwise to increase the pressure, and counterclockwise to reduce Sight glass the pressure. This setting must be adjusted while the boiler is operating. Logano GC 124 II – 6 720 804 440 (2012/11) - Page 17 If not, turn knob on gas valve clockwise to OFF position immediately. Close main gas shut-off. Disconnect heating system from the power source and inform the customer service technician or gas company. Logano GC 124 II – 6 720 804 440 (2012/11)
- Page 18 (vertical). When burner is on flue gases must not escape from the vent hood. 6 720 804 440-27.1T Fig. 27 Checking vent damper Open draft hood Vent connection Vent damper Damper blade position indicator Vent damper motor Flue gas collector Boiler Logano GC 124 II – 6 720 804 440 (2012/11)
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Page 19: Start-Up Protocol
Please instruct the owner/operator how to proceed in case of a fire. Sign the protocol on this page with the owner and hand over the technical documentation. Logano GC 124 II – 6 720 804 440 (2012/11) -
Page 20: Taking The Heating System Out Of Operation
ON/OFF knob (shown in ON position) technician. When replacing components use only parts approved by Buderus. Maintenance is required once a year. Record the results of the inspection in the protocol on page 25. Spare parts can be ordered from the spare parts catalog. -
Page 21: Cleaning The Boiler
( figure 24, page 17).Turn the inner adjustment screw clockwise to reduce the size of the ignition flame, and counterclockwise to increase it. ▶ After completed adjustment replace the safety screw ( figure 24, page 17). Logano GC 124 II – 6 720 804 440 (2012/11) -
Page 22: Wet Cleaning (Chemical Cleaning)
▶ Continue to ventilate boiler room well. Fig. 35 Removing burner ▶ Install burner. Screw nuts (two) ▶ Reattach boiler jacket. Screws on gas manifold on top of gas valve (four) Logano GC 124 II – 6 720 804 440 (2012/11) -
Page 23: Cleaning The Burner
▶ Repeat all steps in the paragraph „Inspecting the ignition burner“. the burner shield, the gas valve, and the controls do not get wet. Logano GC 124 II – 6 720 804 440 (2012/11) - Page 24 ▶ Check area around boiler for hazards. Complete the maintenance protocol to confirm that all maintenace work has been conducted. Sign the maintenance protocol and discuss it with the owner of the heating system. Logano GC 124 II – 6 720 804 440 (2012/11)
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Page 25: Maintenance Protocol
18 Check the area around the boiler for flammable page 15 materials, gasoline or corrosive liquids. Confirm maintenance Confirmation of correct maintenance (company stamp, signature) Table 12 Maintenance protocol Logano GC 124 II – 6 720 804 440 (2012/11) - Page 26 –––––––inches W. C. –––––––inches W. C. –––––––inches W. C. –––––––inches W. C. –––––––inches W. C. –––––––inches W. C. –––––––inches W. C. –––––––inches W. C. –––––––inches W. C. Table 13 Maintenance protocol Logano GC 124 II – 6 720 804 440 (2012/11)
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Page 27: Troubleshooting The Gc124 Ii
If the gas fitting does not close, replace gas fitting. End of troubleshooting Repeat procedure until heating system operates properly. 6 720 804 440-52.1T Fig. 41 Troubleshooting the GC 124 II Logano GC 124 II – 6 720 804 440 (2012/11) - Page 28 Specified thermostat value (control) reached Main and ignition gas valves close, gas burners ex- tinguished, flue gas baffle (if installed) closes. 6 720 804 440-53 Fig. 42 Troubleshooting the GC 124 II Logano GC 124 II – 6 720 804 440 (2012/11)
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Page 29: Technical Specifications
If the installation is over 8500 feet above see level, please contact Buderus for another product option as the GC124 is not approved above 8500 feet operation.Do not attempt to alter this boiler without consulting Buderus. Logano GC 124 II – 6 720 804 440 (2012/11) -
Page 30: Electrical Circuit Diagrams
Electrical circuit diagrams Electrical circuit diagrams 6 720 804 440-69.1T Fig. 43 Wiring Diagram– GC124 II Logano GC 124 II – 6 720 804 440 (2012/11) - Page 31 Electrical circuit diagrams 6 720 804 440-70.1T Fig. 44 Wiring Diagram– GC124 II Logano GC 124 II – 6 720 804 440 (2012/11)