Buderus Logamax Plus GB142-24 Installation Instructions Manual
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Buderus Logamax Plus GB142-24 Installation Instructions Manual

Condensing gas boiler
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See also: Instructions for Installation and Servicing , Service Instructions

Installation instructions

Logamax plus
GB142-24/30/45/60
CAUTION!
Before putting the boiler into operation read this manual carefully.
WARNING!
Improper installation, adjustment, alteration, service or maintenance can
cause injury, loss of life or property damage. Refer to this manual. For
assistance or additional information consult a qualified installer, service
agency or the gas supplier.
CAUTION!
The operating manual is part of the documentation that is delivered to the
installation's operator. Go through the information in this manual with the
owner/operator and make sure that he or she is familiar with all the nec-
essary operating instructions.
NOTICE!
In the Commonwealth of Massachusetts this boiler must be installed by a
licensed Plumber or Gas Fitter.
Warning: If the information in these instructions is not
followed exactly, a fire or explosion may result caus-
ing property damage, personal injury or loss of life.
– Do not store or use gasoline or other flammable vapors and liquids in
the vicinity of this or any other boiler.
– What to do if you smell gas
• Do not try to light any boiler.
• Do not touch any electrical switch; do not use any phone in your
building.
• 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 qualified
–
installer, service agency or the gas supplier.
For registered installers
Please read thoroughly
before installing servicing
Condensing gas boiler

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Summary of Contents for Buderus Logamax Plus GB142-24

  • Page 1: Installation Instructions

    Installation instructions Condensing gas boiler CAUTION! Before putting the boiler into operation read this manual carefully. WARNING! Improper installation, adjustment, alteration, service or maintenance can cause injury, loss of life or property damage. Refer to this manual. For assistance or additional information consult a qualified installer, service agency or the gas supplier.
  • Page 2 Updating of documentation Please contact us if you have any suggestions for improvements or corrections. Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 3: Table Of Contents

    Carrying out a leak test in operating conditions condensate trap 8.10 Measuring the carbon monoxide content (CO) 12.2 Checking and adjusting the gas/air-ratio 8.11 Function testing 8.12 Measuring the ionization current Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!
  • Page 4 Contents Appendix 13.1 Operating messages 13.2 Error messages 13.3 Technical specifications Reports 14.1 Start-up report 14.2 Inspection report 14.3 Maintenance report Spare parts Index Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 5: Safety And General Instructions

    – Do not restrict or seal any air intake or outlet openings. – If you find any defects, you must inform the owner of the system of the defect and the associated hazard in writing. Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 6: Observe These Instructions For Space Heating Water

    – Dispose of components of the heating system (e. g. boiler or control device), that must be replaced in an environmentally responsible manner. Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 7: Regulations And Guidelines

    Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!
  • Page 8 Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 9: Product Description

    1) ECO mode means that the temperature inside the hot water tank is 140 °F (60 °C), with a hysteresis ( T) of 18 °F (10 °C) instead of 9 °F (5 °C) Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 10: Dimensions And Connections

    Closet clearances are: 4” (100 mm) to the right, 4” (100 mm) at the top and 6” (150 mm) to the left. Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!
  • Page 11 Closet clearances are: 4” (100 mm) to the right, 4” (100 mm) at the top and 6” (150 mm) to the left. Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 12: Packaging And Transportation

    - supply and return shutoff ball valves Table 1 Items supplied with unit The user’s instructions (in a special format) is located in the boiler drawer Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 13: Installation

     Install the wall bracket taking into account the necessary service clearances.  Remove the transport safety clamps (fig. 6). Fig. 6 Removing the transport safety clamps Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 14: Making The Gas Connection

    .60 (42 mbar) and a inlet gas pressure of 14 inches W.C. (35 mbar) or less and a pressure drop of .3 inches W.C. (20 mbar) Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 15: Fitting The Heating Circuit Supply And Return Pipes

     Connect the pipes so that they are free from strain. Connecting boiler with DHW tank  Connect the external hot-water tank according to the Installation instructions of the hot-water tank and fittings concerned. Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!
  • Page 16 – dimensions: height 2¼ inch (57.15 mm), width 2 inch (50.8 mm). – 30 Psi (2 bar) discharge pressure. – discharge is ¾ inch (19.1 mm) female in diameter. Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!
  • Page 17 PT gauge (pressure and primary pump temperature gauge) DHW pump drain valve shut-off valve zone pump Low loss header shut-off valve Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 18: Combustion Air And Ventilation Openings

    – Avoid excessive dust formation and build-up. NOTICE When one expects contaminated combustion air (near swimming pools, chemical cleaning operations and hair salons), sealed combustion operation is recommended. Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!
  • Page 19 Where ducts are used, they shall be of the same cross- sectional area as the free area of the opening to which they connect. Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 20: Installation Of The Flue Gas Adapter (Included In The Scope Of Delivery)

    Fig. 14 Placing the flue gas adapter  Screw on the flue gas adapter using six screws (see fig. 15). Fig. 15 Connecting the flue gas adapter Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 21: Installation Of The Exhaust And Air Intake System

    Do not use chimney as a raceway if another boiler or fire- place is vented into or through chimney. Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!
  • Page 22 D1785, F441 or D2665. Cement and primer must comply with ASTM D2564 or F493. For Canada, use CSA or ULC certified PVC or CPVC pipe, fittings and cement. Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!
  • Page 23 7 "Connecting the condensate drain". NOTICE Periodic cleaning of the vent terminal and air-intake screens is mandatory. Fig. 19 Vertical venting system (sealed combustion) Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!
  • Page 24 INTAKE EXHAUST EXHAUST Fig. 23 Vertical parallel venting system (sealed Fig. 22 Horizontal venting system (sealed combustion) - combustion) - Situation 2 Situation 2 Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!
  • Page 25 WHICHEVER IS GREATER EXHAUST EXHAUST INTAKE Fig. 27 Horizontal venting system (sealed combustion) Fig. 26 Vertical exhaust and horizontal intake venting system (sealed combustion) Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 26: Conversion To Propane

    To convert the boiler to propane , following the instructions in the " Propane, Conversion Kit" Instruction manual. Available kits see page 59 "spare parts, pos. 43". Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 27: Electrical Connections

    DHW tank pump 120V 60Hz end switch. lilac DHW recirculating pump 120V 60Hz Netz white Main power connection 120V 60Hz Connection for an external DHW tank sensor. Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!
  • Page 28 Make sure that the power consumption of each of the terminals 7 – 9 (see circuit diagram) does not exceed 250 W or 5 Amp. Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!
  • Page 29 230 VAC 10 VAC 120 VAC 10 VAC 120 VAC 24 VAC 0 VAC 24 VRAC 24 VRAC 120 VAC Fig. 31 Electric circuit diagram Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 30: Start-Up Procedure

    Turn off all the electric power to the appliance if service is to be perf r ormed. Set the thermostat or other operating control to lowest setting. Close main gas shut off valve. 708.375A - 2172B Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 31: Testing For Gas Leaks

    Contact the water supplier or local plumbing inspector on how to correct the situation. Never plug the relief valve. Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 32: Filling The Condensate Trap

    – Is the prescribed combustion air/flue system used? – Have the instructions for configuring the flue system as specified in the relevant Installation instruction for the flue gas system been observed? Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 33: Checking The Orifices

    Fig. 35 Opening the control panel  Switch on the heating system by setting the main switch to position "1" (see chapter 9 "BC10 basic controller", page 39). Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 34: Checking And Adjusting The Gas/Air Ratio

     Use a hose to connect the plus terminal of the pressure gauge to the burner pressure measuring nipple (fig. 36, pos. 2). Fig. 36 Checking the gas/air ratio Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!
  • Page 35  Remove the measurement set-up, tighten the screw in the burner pressure measuring nipple.  Switch on the heating system using the main switch. Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 36: Carrying Out A Leak Test In Operating Conditions

    Fig. 38 Flue gas sampling point inspections or maintenance as required.  You must also test the gas and water lines for leaks. Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 37: Measuring The Ionization Current

     Switch off the heating system using the main switch.  Remove the measuring device and restore the plug and socket connection.  Switch on the heating system again using the main switch. Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 38: Testing The Ignition Safety Shut Off Device

     Show the owner how the heating system works and how the boiler can be operated. Hand over the technical documents. Fig. 41 Installing the casing Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 39: Bc10 Basic Controller

    The water in the boiler is being heated. operational Burner off The water in the boiler has reached the required temperature or there is no heat request. Table 7 LED indication Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!
  • Page 40 Standard display for this operating condition. This display appears after 5 minutes if no button is pressed. The temperature is higher as 199° when 199 is blinking in the display. Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!
  • Page 41 Standard display for this operating condition. This display appears after 5 minutes if no button is pressed. The temperature is higher as 199° when 199 is blinking in the display. Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 42: Carrying Out Additional Tasks

    A blinking decimal point is displayed while manual mode is active.  Press the "Chimney Sweep" button (for more than 5 seconds) until the decimal point in the status display flashes. Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 43: Configuring The Boiler

     Set the heating capacity by pressing the "Chimney Sweep" button (higher values) or the "Reset" button (lower values).  Press the "Service" button to confirm the setting. Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 44: Setting The Dhw Temperature Value

    The LED under the rotary knob lights up when the heating system is switched on and heat is requested. In summer mode the heating system is switched off (LED off). Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!
  • Page 45 NOTICE On thermostat only systems a 5 to 10 minute post-purge setting is recommended to purge heat from the boiler. Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 46: Shutting Down The System

    You must immediately close the main shut-off valve or gas shut-off valve and disconnect the power from the heating system.  Close the main shut-off valve. Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 47: Inspection

    11.2 Visual inspection for general signs of corrosion  Check all gas and water pipes for signs of corrosion.  Replace any pipes that are corroded. Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 48: Internal Leak Testing

    See subsection 8.5 "Checking the combustion air/flue gas connection", page 32. 11.11 Checking venting systems Check air intake and flue gas for obstruction or damage. Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 49: Maintenance

    (fig. 44, pos. 1) and pull the plug (fig. 44, pos. 2) from the gas valve terminal block.  Pull the plug from the fan unit (fig. 44, pos. 3). Fig. 44 Removing the connections Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!
  • Page 50  Switch on the heating system using the main switch.  Press the "Chimney Sweep" button until the decimal point is displayed. Leave the boiler on for approx. 10 minutes. Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 51: Checking And Adjusting The Gas/Air-Ratio

     Re-assemble all parts in reverse order of disassembly. Fig. 48 Condensate trap 12.2 Checking and adjusting the gas/air-ratio See chapter 8.8 "Checking and adjusting the gas/air ratio", page 34. Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 52: Appendix

    The boiler then switches to CH mode. The operating code flashing in the display after the service button is pressed is A01/ 818. To enable the DHW, restart the boiler. Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 53: Error Messages

    F, H, L, 221 Loose contact or defective safety sensor. U 222 Supply sensor affected by short circuit. Y 223 Loose contact or faulty supply sensor. Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 54: Technical Specifications

    Table 13 Technical specifications 1. The performance information shown is based on 'European performance standards'. 2. If the heating capacity is limited to max. 80 % (L80). Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!
  • Page 55 0.163 4.15 Natural gas H 423.173A 0.295 7.50 0.301 7.65 60 kW LPG P 423.173A 0.213 5.40 0.215 5.45 table 15 Gas orifice diameter Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 56: Reports

    12. Make the necessary settings on the thermostat 13. Carry out function testing 14. Fitting the casing 15. Inform the owner; hand over the technical documents Confirm proper start-up Company stamp/signature/date Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 57: Inspection Report

    14. Final check of inspection activities, note down the measurement and test results 15. Confirm proper inspection Company stamp/ Company stamp/ Company stamp/ signature signature signature Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 58: Maintenance Report

    _______________ % _______________ % content with partial load _______________ % _______________ % Confirm proper maintenance Company stamp/ Company stamp/ Signature Signature Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 59: Spare Parts

    Shield hot surface ignitor 7100229 Controller connection plate 78186 Mounting plate 7098852 ** not shown in exploded views Seal mounting plate (5 pc) 7098850 Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!
  • Page 60 Coupling nut pump 73481s Seal pump (10 pc) 15022s Coupling nut pump 15020 Conversion set pump 73149 Flue gas adaptor drain set, incl. pos. 44 8718600686 Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!
  • Page 61 Spare parts Exploded view Logamax plus GB142-24/30 Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!
  • Page 62 Spare parts Exploded view Logamax plus GB142-45/60 Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

  • Page 63: Index

    Installation room ......13 Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!

This manual is also suitable for:

Logamax plus gb142-30Logamax plus gb142-45Logamax plus gb142-60

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