Buderus GB312 Series Technical Service Bulletin

Brand: Buderus

Model: GB312 Series

Type: Technical Service Bulletin

Technical service bulletin

BIM Module Change Procedure

Bulletin Number: TBG-19 | Model: GB312 Series Boilers

Tools Needed

• Drill

• Rivetingtool

• Phillipsheadscrewdriver

• 30TTorxscrewdriverorangletorx

•

BIM Module Change Procedure

1. Disconnectignitiontransformerbyunpluggingtheignition

cables(Fig.1,pos.A)andthepowersupplycable(Fig.1,

pos.B).Loosentwotorxscrewsandremovetransformer

(Fig.1,pos.C).

Figure 1

2. DisconnectgroundingcableundercablecoverofSAFecontrol

(Fig.2).PressbothplasticclampsofSAFecontrolcoveron

backsideofmetalholdingplate(Fig.3)andpullcomplete

SAFecontrolloosefromholdingplate(payattentiontowiring

ofcontrol).

Figure 2

Figure 3

3. UnscrewscrewsNo.20(installation&maintenancemanual

page109)andremoveholdingplatetogetherwiththeoldBIM

programmingmodule(Fig.4).

Figure 4

4. DrilloutrivetwhichxesBIMmoduletometalplate(Fig.5).

Figure 5

Bulletin Number: TBG-19

GB312 Series Boilers Technical service bulletin

Datasubjecttochangewithoutnotice|BTC431002101A|02.2010

Buderus

BoschThermotechnologyCorp.

50WentworthAve

Londonderry,NH03053

Tel:(603)552-1100

Fax:(603)584-1681

www.buderus.net

5. RemoveoldBIMmoduleandinsertnewmodule.Secure

BIMmodulewithnewrivet(includedinshipment)and

adequaterivetingtool(Fig.6).

Figure 6

6. Reassembleholdingplate(payattentiontothesmall

bendedfansupportsheet(Fig.7,pos.A)whichshouldbe

locatedonthemetallicfanmotormount(Fig.8,pos.A;see

alsopage109).Fastenscrews20(IMpage20;seealso

Fig.9).

Figure 7

Figure 8

Figure 9

7. ReassembleSAFecontrolbyreconnectingthegrounding

cable(Fig.2)andattachingtheSAFecontroloverthenew

BIMmoduleontheholdingplate.SAFecoverPlasticlatches

(Fig.10,pos.A)mustsnapintotheholdingplatemounts(Fig.

10,pos.B).

Figure 10

8. Reinstalltransformerandsecurewithtwotorxscrews

(Fig.1,pos.C).

9. Reconnecttheignitiontransformerbyplugginginthe

connection/ignitioncables(Fig.1)

Buderus GB312 Series Technical Service Bulletin

Buderus GB312 Series Technical Service Bulletin

Buderus GB312 Series Technical Service Bulletin

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