Buderus GB142-60 Instruction
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Buderus GB142-60 Instruction

Buderus GB142-60 Instruction

Propane conversion kit condensing gas boiler
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See also: Instructions for Using
Propane Conversion Kit
Instruction
GB142-24/30/45/60
Condensing gas boiler
Required Input Rates
GB142-24
GB142-30
84,800 btu/hr
106,000 btu/hr
This kit and instructions are for converting the GB142 model boilers
from Natural Gas to Liquid Propane.
WARNING!
This conversion kit shall be installed by a qualified service
agency in accordance with the manufacturer's instructions and
all applicable codes and requirements of the authority having
jurisdiction.
The information in these instructions must be followed to
minimize the risk of fire or explosion or to prevent property dam-
age, personal injury or death. The qualified service agency is
responsible for the proper installation of this kit.
The installation is not proper and complete until the operation of
the converted boiler is checked as specified in the manufac-
turer's instructions supplied with the kit.
CAUTION!
The gas supply shall be shut off prior to disconnecting the elec-
trical power, before proceeding with the conversion.
Notice! Save these instructions for later use.
For the contractor
Please read these
instructions carefully!
GB142-45
GB142-60
160,900 btu/hr
214,800 btu/hr

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Summary of Contents for Buderus GB142-60

  • Page 1 Propane Conversion Kit Condensing gas boiler Instruction Required Input Rates GB142-24 GB142-30 GB142-45 GB142-60 84,800 btu/hr 106,000 btu/hr 160,900 btu/hr 214,800 btu/hr This kit and instructions are for converting the GB142 model boilers from Natural Gas to Liquid Propane. WARNING!

  • Page 2: Table Of Contents

    Contents Contents Safety considerations Application purpose Hazard definitions Observe the following symbols Parts list for converting the boiler to propane LP conversion Testing for gas leaks Inlet gas pressure Checking and adjusting the gas/air ratio Carrying out a tightness test in operating conditions Measuring the carbon monoxide content (CO)

  • Page 3: Contents

    Safety considerations Safety considerations Contents Observe the following symbols For use in Canada the conversion kit shall be carried out in accordance with the requirements of the provin- cial authorities having jurisdiction and in accordance DANGER with the requirements of the CAN-B149.1 and CAN1-B149.2 Installation Code.

  • Page 4: Parts List For Converting The Boiler To Propane

    Parts list for converting the boiler to propane Parts list for converting the boiler to propane Conversion kit propane for the 24/30 kW # 76687 includes: – orifice # 7099016 (dia. 3.35 mm / 0.131 inch) – 2 o-rings – bag –...

  • Page 5: Lp Conversion

    LP conversion LP conversion To convert the boiler to propane, the following instruc- tions must be adhered to: DANGER if flammable gas explodes. Only carry out work on gas conduits and fit- tings if you are licensed for such work. This appliance is NOT suitable for use with gas mixtures such as Butane/Propane Shut down the boiler...

  • Page 6: Testing For Gas Leaks

    LP conversion Loosen the three Phillips screws (fig. 4, pos. 1) and remove the gas valve from the fan unit. Remove the gas orifice (fig. 4, pos. 2). Fit the correct orifice for the new type of gas supply (table 1). Make sure not to damage the O-rings. Re-assemble all parts in reverse order of disassem- bly.

  • Page 7: Inlet Gas Pressure

    LP conversion Inlet gas pressure Open at least one thermostatic radiator valve if present to allow water to flow through the boiler. Do not switch on the boiler. Close the gas shut-off valve. Loosen the screw plug on the inlet gas pressure testing nipple by two turns (fig.

  • Page 8: Checking And Adjusting The Gas/Air Ratio

    LP conversion Press the "Chimney Sweep" button to end the measurement procedure. Close the gas shut-off valve. Remove the connection hose again and tighten the screw plug on the testing nipple. Open the gas shut-off valve again. CAUTION – Contact the relevant gas utility company if the required inlet gas pressure is not available.

  • Page 9: Carrying Out A Tightness Test In Operating Conditions

    LP conversion Read out the differential pressure. The differential pressure (p – p ) must be -0.02 inch W.C. (- 5 Pa) (±0.02 inch W.C. = ± 5 Pa) (read-out on pressure gauge: -0.04 – 0 inch W.C. = -10 – 0 Pa). Enter the value measured in the start-up report.

  • Page 10: Measuring The Carbon Monoxide Content (Co)

    LP conversion Measuring the carbon monoxide content (CO) Measure the carbon monoxide content on the flue gas sampling point (fig. 9). The CO values in an air-free condition must be below 400 ppm or 0.04 vol. %. Values of 400 ppm and up indi- cate that the burner adjustment may be wrong, the gas burner fitting or the heat exchanger are dirty or that there may be burner faults.

  • Page 11: Operating Instructions

    Operating Instructions Operating Instructions Start up the boiler STOP! Read the safety precautions on page 10 of this manual. Wait five (5) minutes to clear out any gas. Then smell for gas, including near the floor. If you smell gas, STOP! Follow "B" in the safety information on page 10.
  • Page 12 Bosch Thermotechnology Corporation 50 Wentworth Avenue Londonderry, NH 03053 Tel.: 603-552-1100 Fax: 603-584-1681 www.buderus.net Products manufactured by: Bosch Thermotechnik GmbH Sophienstrasse 30-32 D-35576 Wetzlar www.buderus.de info@buderus.de Bosch Thermotechnology Corporation reserves the right to make changes without notice due to continuing engineering...

This manual is also suitable for:

Gb142-24Gb142-45Gb142-30

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