Buderus Logano G234X Installation And Service Instructions Manual
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Buderus Logano G234X Installation And Service Instructions Manual

Buderus Logano G234X Installation And Service Instructions Manual

Gas central heating boilers
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See also: Instruction Manual , User Manual
Installation and Service Instructions
Logano G234X
Gas central heating boilers
Read carefully before carrying out installation and maintenance.
CAUTION!
Before commissioning the boiler, heed the safety
instructions for installation and maintenance.
DANGER!
If installation, adjustment, modification,
operation or maintenance of the heating system 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 further information, contact
a qualified contractor, an suitable service provider or
the gas supply company.
DANGER!
These instructions are part of the technical documents that
must be handed over to the owner/operator of the heating
system. Discuss the content of this manual with the owner/
operator of the heating system to ensure that they are
familiar with all information required for operation of the
heating system. In the Commonwealth of Massachusetts,
the floor-standing boiler must be installed by a licensed
heating contractor or gas fitter.
Gas central heating boilers

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Summary of Contents for Buderus Logano G234X

  • Page 1 In the Commonwealth of Massachusetts, the floor-standing boiler must be installed by a licensed heating contractor or gas fitter. Installation and Service Instructions Logano G234X Gas central heating boilers Read carefully before carrying out installation and maintenance.

  • Page 2: Table Of Contents

    Environmental Protection / Disposal ....24 2.8.1 Logano G234X dimensions ..... . . 6 2.8.2 Technical Data .

  • Page 3: Safety Instructions

    Hot water may escape from the safety valve when the appliance is When soldering and brazing around combustible and flammable running. material: ▶ Never shut off safety valves. ▶ Take appropriate protective measures. Logano G234X – 6 720 811 233 (2014/05)

  • Page 4: Product Description

    Power to the controller and maintenance of this boiler. must be disconnected. The Logano G234X floor-standing gas boiler is generally referred to ▶ Take measures to ensure that the heating system cannot be below as a boiler.

  • Page 5: Notes On Installation And Operation

    The boiler casing prevents energy loss and acts as soundproofing. The boiler block transfers the heat generated by the burner to the boiler water. The insulation reduces energy loss. Logano G234X – 6 720 811 233 (2014/05)

  • Page 6: Dimensions And Specifications

    ¾ʺ 1 ½ʺ ⁄ ⁄ 6 720 806 028-02.1T Fig. 2 Connections and dimensions for Logano G234X, dimensions in inches (dimensions in mm) VK/VS Boiler supply/Storage tank supply Gas connection + main shutoff valve Boiler return RSL/EL Return safety line/draining...

  • Page 7: Technical Data

    0 ...8500 ft (0...2591 m) [In. W.C.] [mbar] 2.20 10.6 26.5 2.40 10.5 26.2 2.30 10.3 25.8 2.45 10.3 25.9 Table 5 Main gas orifice identification and rated orifice pressure for propane gas Logano G234X – 6 720 811 233 (2014/05)

  • Page 8: Moving The Tank

    Moving boiler with hand truck ▶ Remove the straps and the cardboard packaging. ▶ Loosen the retaining screws. ▶ Lift the boiler at the sides and slide to the edge of the pallet. Logano G234X – 6 720 811 233 (2014/05)

  • Page 9: Placing The Boiler

    Where applicable, allow extra wall clearances for additional components such as a DHW tank, pipe joints, vent pipe silencer or other components on the flue gas side, etc. 6 720 806 028-04.1T Fig. 7 Leveling the boiler (example) Logano G234X – 6 720 811 233 (2014/05)

  • Page 10: Boiler Installation

    ( Fig. 8). cooling cycle. NOTICE: Risk of system damage due to leaking connections! ▶ Connect pipes without stress to the boiler connections. Logano G234X – 6 720 811 233 (2014/05)

  • Page 11: Connect The Central Heating Supply And Return

    6 720 806 028-18.1T Fig. 10 Main power switch (by customer) 6 720 806 028-17.1T Fig. 9 Supply connection Boiler Safety valve Supply manifold pipe (factory-installed) 90°-elbow (¾ " NPT) Supply connection Logano G234X – 6 720 811 233 (2014/05)

  • Page 12: Fuel Gas Supply Connection

    Equivalent lengths for pipe fittings [feet] (1 foot = 0.3 m) Iron pipe nominal diameter Pipe fitting type [inch] 90° elbow T-piece Shutoff valve Gas shutoff 1.60 1¼ 2.15 1½ 2.50 3.00 2½ 3.50 Table 8 Equivalent lengths for pipe fittings Logano G234X – 6 720 811 233 (2014/05)

  • Page 13: Converting Boiler To Propane

    ▶ Seal off connection for safety valve in the heating supply and all other unused connections with plugs. ▶ Isolate the expansion tank from the system by closing the cap valve. ▶ Open the mixing and shutoff valves on the heating water (primary) side. Logano G234X – 6 720 811 233 (2014/05)

  • Page 14: Installing The Front Wall Of The Boiler

    Supply manifold pipe (factory-installed) agents, paints and adhesives). 90°-elbow (¾ " NPT) ▶ Do not store or use these substances in the boiler room. Supply connection ▶ Avoid excessive dust accumulation. Logano G234X – 6 720 811 233 (2014/05)

  • Page 15: Requirements For Connection To Chimneys Or Flue Gas Systems

    • If the openings are connected to ventilation ducts, the ducts must have the same cross-section area as the openings to which they connected. Logano G234X – 6 720 811 233 (2014/05)

  • Page 16: Installing The Flue Pipe

    ▶ Place flue connector adapter [3] on the collar of the draft hood [4]. ▶ Install pins in the holes provided in the vent damper [1]. ▶ Fasten vent damper to the flue connector adapter with three (3) corrosion-resistant sheet metal screws. Logano G234X – 6 720 811 233 (2014/05)

  • Page 17: Electrically Connecting The Vent Damper

    ▶ Route the connection cable of the vent damper through the wiring retainer behind the boiler and between the thermal insulation and the jacket to the AquaSmart ( Fig. 16 [1], page 17 on the front of the boiler. Logano G234X – 6 720 811 233 (2014/05)

  • Page 18: Placing The Heating System In Operation

    Close the gas shutoff valve. 11. Follow the startup instructions in Section 6.3. 6 720 806 028-08.1T Fig. 18 Removing the front wall of the boiler Front wall of boiler Locking screws Logano G234X – 6 720 811 233 (2014/05)

  • Page 19: Start Up Instructions

    6. Turn gas valve ON/OFF knob [1] counterclockwise to the ON ▶ Do not use the appliance if any part of it has been position. under water. ▶ Contact a qualified and certified service company. Logano G234X – 6 720 811 233 (2014/05)
  • Page 20 1/2...1 1/2 inches (12.7...38.1 mm) 11.5 10.3 25.8 Ignition flame 10.9 10.3 25.9 Table 11 Orifice pressure The adjustment screw is located behind the safety screw for the pilot orifice pressure setting ( Fig. 23, [5]). Logano G234X – 6 720 811 233 (2014/05)
  • Page 21 Fig. 27 Gas valve supply and inform the customer service technician or gas supply company. ON/OFF knob (ON position) Screw plug for gas supply pressure test port Screw plug for orifice pressure test port Logano G234X – 6 720 811 233 (2014/05)

  • Page 22: Shutting Off Gas Supply To Boiler

    ▶ Familiarize the owner/operator with the entire heating system and the operating instructions for the boiler. ▶ Hand over the technical documentation to the owner/operator. ▶ Jointly sign the commissioning report. Logano G234X – 6 720 811 233 (2014/05)

  • Page 23: Commissioning Report

    2.20 3.70 2.40 3.50 2.30 3.80 2.45 Table 13 Main gas orifice identification 1) Factory setting 2) Convert from natural gas to propane gas only as described in Section 5.4.2, page 13. Logano G234X – 6 720 811 233 (2014/05)

  • Page 24: Shutting Down The Heating System

    Use the heating system emergency shutoff switch located outside the installation room or the heating system circuit breaker for emergency shutdown. Logano G234X – 6 720 811 233 (2014/05)

  • Page 25: Boiler Inspection And Maintenance

    If parts are replaced, Bosch approved flammable gases! Buderus components may be used. A service must be carried out once a ▶ Operations on the gas lines may be carried out only year. The results of the inspection must be recorded in the maintenance by properly licensed gas contractors.

  • Page 26: Cleaning The Boiler

    Fig. 33 Cleaning the hot gas flues High-tension ignition lead Cleaning brush Flame roll-out switch connection cable Thermal insulation Flame roll-out safety shutoff switch Pilot gas line Connection cable to the gas valve Gas valve Logano G234X – 6 720 811 233 (2014/05)

  • Page 27: Wet Cleaning The Boiler (Chemical Cleaning)

    ▶ Install the burner in reverse order of removal ( Section 9.5.1). ▶ Place boiler in operation as directed in Section 6, starting on page 18. ▶ Check that the AquaSmart functions properly. Logano G234X – 6 720 811 233 (2014/05)
  • Page 28 ▶ Complete the maintenance log to confirm that all maintenance work has been carried out ( page 31). ▶ Sign the maintenance log and familiarize the owner with how the heating system operates. Logano G234X – 6 720 811 233 (2014/05)

  • Page 29: Troubleshooting The G234X

    • If the gas valve does not close, replace gas valve. End of troubleshooting Repeat procedure until heating system operates properly. 6 720 804 440-52.2T Fig. 37 Troubleshooting the G234X Logano G234X – 6 720 811 233 (2014/05)
  • Page 30 Specified thermostat value (control) reached Main and ignition gas valves close, gas burners ex- tinguished, vent damper (if installed) closes. 6 720 804 440-53.2T Fig. 38 Troubleshooting the G234X Logano G234X – 6 720 811 233 (2014/05)

  • Page 31: Maintenance Log

    ______________ inches W. C. ______________ inches W. C. ______________ inches W. C. ______________ inches W. C. ______________ inches W. C. ______________ inches W. C. ______________ inches W. C. Table 15 Maintenance log Logano G234X – 6 720 811 233 (2014/05)

  • Page 32: Electrical Circuit Diagrams

    Electrical circuit diagrams Electrical circuit diagrams 6 720 804 886-06.2T Fig. 39 Wiring diagram - G234X Logano G234X – 6 720 811 233 (2014/05)
  • Page 33 Electrical circuit diagrams 6 720 804 886-07.2T Fig. 40 Wiring diagram - G234X Logano G234X – 6 720 811 233 (2014/05)
  • Page 34 Notes Logano G234X – 6 720 811 233 (2014/05)
  • Page 35 Notes Logano G234X – 6 720 811 233 (2014/05)

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