Buderus Logamax plus GB162-80 kW Instructions Manual
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Buderus Logamax plus GB162-80 kW Instructions Manual

Buderus Logamax plus GB162-80 kW Instructions Manual

Condensing gas boiler gas valve replacement instructions
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Gas valve replacement

Instructions
Logamax plus
GB162-80 kW/100 kW
Condensing gas boiler
Required Input Rates
Logamax plus GB162-80 kW
290,000 btu/hr
This instruction is for replacing the gas valve for the GB162 model
boilers with Natural Gas.
WARNING!
Replacement of a gas valve must be done 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 gas valve.
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 gas valve.
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!
Logamax plus GB162-100 kW
333,000 btu/hr

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Summary of Contents for Buderus Logamax plus GB162-80 kW

  • Page 1: Gas Valve Replacement

    Gas valve replacement Condensing gas boiler Instructions Required Input Rates Logamax plus GB162-80 kW Logamax plus GB162-100 kW 290,000 btu/hr 333,000 btu/hr This instruction is for replacing the gas valve for the GB162 model boilers with Natural Gas. WARNING! Replacement of a gas valve must be done by a qualified service...

  • Page 2: Table Of Contents

    Checking and adjusting the gas/air ratio Carrying out a tightness test in operating conditions Measuring the carbon monoxide content (CO) Lighting Instructions Operating Instructions Logamax plus GB162-80 kW/100 kW - We reserve the right to make any changes due to technical modifications!

  • Page 3: Safety Considerations

    NOTICE: Indicates special instructions on installa- tion, operation or maintenance that are important but not related to personal injury or property damage. Logamax plus GB162-80 kW/100 kW - We reserve the right to make any changes due to technical modifications!

  • Page 4: Parts List

    – o-ring (fan-venturi) Table 1 Gas orifice diameter – sealing (gas pipe) – Torx keys Tx25 and Tx30 – Torx screws (flange). Logamax plus GB162-80 kW/100 kW - We reserve the right to make any changes due to technical modifications!

  • Page 5: Gas Valve Replacement

    Mains switch Open the boiler door by turning the vent key through ¼ rotation (fig. 2). fig. 2 Opening the boiler door Logamax plus GB162-80 kW/100 kW - We reserve the right to make any changes due to technical modifications!
  • Page 6 Removing the connectors from the fan Pull the air suction tube from the fan (fig. 5). fig. 5 Pulling the air suction tube from the fan Logamax plus GB162-80 kW/100 kW - We reserve the right to make any changes due to technical modifications!
  • Page 7 O-ring (fig. 9) and follow the instructions above in reverse order. fig. 9 Placing a new O-ring on the fan unit Logamax plus GB162-80 kW/100 kW - We reserve the right to make any changes due to technical modifications!
  • Page 8 Close the boiler door and lock the fastener by turn- ing the vent key through ¼ rotation in a clockwise direction. fig. 12 Re-installing the burner plate Logamax plus GB162-80 kW/100 kW - We reserve the right to make any changes due to technical modifications!

  • Page 9: Testing For Gas Leaks

    60 inch W.C. (150 mbar). fig. 13 Measuring the gas supply pressure Logamax plus GB162-80 kW/100 kW - We reserve the right to make any changes due to technical modifications!
  • Page 10 – Install a gas pressure regulator before the gas burner fitting if the supply pres- sure is too high. Logamax plus GB162-80 kW/100 kW - We reserve the right to make any changes due to technical modifications!

  • Page 11: Checking And Adjusting The Gas/Air Ratio

    16 Setting the gas/air ratio Repeatedly press the "Service" button until the temperature indication is displayed. Logamax plus GB162-80 kW/100 kW - We reserve the right to make any changes due to technical modifications!

  • Page 12: Carrying Out A Tightness Test In Operating Conditions

    You must establish and resolve the cause. The boiler must be operational when you do this. fig. 17 Measuring the carbon monoxide content Logamax plus GB162-80 kW/100 kW - We reserve the right to make any changes due to technical modifications!

  • Page 13: Lighting Instructions

    Logamax plus GB162-80 kW/100 kW - We reserve the right to make any changes due to technical modifications!

  • Page 14: Operating Instructions

    Connect the heating system to the power supply. Switch on the heating system using the main switch (fig. 18). fig. 18 Logamax plus GB162-80 kW/100 kW - We reserve the right to make any changes due to technical modifications!
  • Page 15 Notes Logamax plus GB162-80 kW/100 kW - We reserve the right to make any changes due to technical modifications!
  • Page 16 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 Bosch Thermotechnology Corporation reserves the right to make changes without notice due to continuing engineering...

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