Buderus GB142 24/30/45/60 Boiler Technical service bulletin

Bulletin Number:

TBG-3 | Model: GB142-24/30/45/60 Series Boiler

Technical service bulletin

Removing Fan Assembly

Installation Manual Supplement

Introduction

• The purpose of this bulletin is a supplement to the Buderus

GB142 Service Manual

Reference Document

• 72149400 - 05/2005 US/CA (EN)

Servicing Instructions - Condensing Gas Boiler

Logamax plus GB142-24/30/45/60

8.1.6 Replacing the fan unit

Dismantling the fan unit Figure 13

NOTE

Follow the installation instructions for

120V fan units!

• Switch off the power supply of the heating system on the circuit breaker.

• Set the main switch on the BC10 to “0” (Off).

• Remove the casing.

• Remove both cable plugs from the fan unit

(see fig. 12, pos. 1).

Disconnect the cable plug from the fan unit Figure 12

3 2 1

• Remove the fan unit fastening screw (see fig. 13, pos. 2).

• Remove the fan unit by swinging it to the right (see fig. 13, pos. 3).

• Save internal venturi and gaskets for reinstallation in new fan unit (see fig. 13A, pos. 1).

Venturi location Figure 13A

• Remove the air suction tube (see fig. 13, pos. 1).

Bulletin Number: TBG-3 | GB142-24/30/45/60 Series boiler |

• Install new fan unit.

• Install internal venturi from original fan unit in new fan unit (see fig. 13A, pos. 1)

• Install the fastening screw, air suction tube and both plugs.

• Fit the casing.

• Switch on the power supply of the heating system on the circuit breaker.

• Set the main switch on the BC10 to “1” (On).

Technical service bulletin

Data subject to change without notice | 09/2007

BBT North America Corporation

50 Wentworth Ave

Londonderry, NH 03053

Tel: (603) 552-1100

Fax: (603) 584-1681 www.buderus.net

Buderus