Wolf MGK-130 Technische Daten

Maintenance instructions

Gas condensing boilers

MGK-130

MGK-170

MGK-210

MGK-250

MGK-300

Document no. 3062882_0910 Subjecttotechnicalmodications GB

Wolf GmbH · Postfach 1380 · D-84048 Mainburg · Tel. +49 8751/74-0 · Fax +49 8751/741600 · Internet: www.wolf-heiztechnik.de

2 3062882_0910

Contents

Contents ............................................................................................................................................................... Page

Safetyinstructions ....................................................................................................................................................3-4

Maintenanceprocedure............................................................................................................................................5-7

MaintenanceprocedureMGK-130 .........................................................................................................................8-10

MaintenanceprocedureMGK-170/210/250/300 ..................................................................................................11-12

Check/maintenance,componentsMGK-130toMGK-300 ...................................................................................13-17

Neutralisingsystem&siphon ...............................................................................................................................18-20

Maintenanceprocedure,nalising........................................................................................................................21-23

Function check ..........................................................................................................................................................24

Listofrequiredparts..................................................................................................................................................25

Overviewofthestepstobetakenandmaintenancereport .................................................................................26-27

Installation,non-returnvalvefortheMGK-130(whenreplacingthefan) .............................................................28-30

33062882_0910

The following symbols and references are used

in conjunction with these important instructions

concerning personal safety, as well as operational

reliability.

"Safety instructions" are instructions with

which you must comply exactly, to prevent

risks and injuries to individuals and material

losses.

Danger from 'live' electrical components!

NB: Switch OFF the ON/OFF switch

before removing the casing.

Never touch electrical components or

contacts when the ON/OFF switch is in

the ON position! This results in a risk of

electrocution that may lead to injury or

death.

The main supply terminals are 'live' even

when the ON/OFF switch is in the OFF

position.

Parts of boilers can get very hot;

consequently there is a risk of serious

burns.

Therefore allow to cool down prior to

installation work.

This requires an action.

Visual check.

Safety instructions

Fig.:Terminalbox:

 Dangerfromelectricalvoltage.

Fig.:Ignitiontransformer,highvoltageignition

electrode,ionisationelectrode,heatexchanger

 Dangerfrom'live'electricalcomponents,riskof

burningthroughhotcomponents.

4 3062882_0910

Safety instructions

Maintenance work must only be carried out

by a qualied heating contractor.

Regular maintenance and the exclusive use

of original Wolf spare parts are of crucial

importance to the trouble-free operation

and long service life of your appliance.

We therefore recommend you arrange a

maintenance contract with a local heating

contractor.

General information

Fig.:Gas connection: Escaping gas may cause

poisoningortheriskofexplosion.

"NB" indicates technical instructions that

youmustobservetopreventmateriallosses

and malfunctions on the boiler.

Fig.:Gascombinationvalve.

 Dangerfromelectricalvoltage.

 Escaping gas may cause poisoning or an

explosion.

MGK-170/210/250/300 MGK-130

53062882_0910

Maintenance procedure

OFF

6 3062882_0910

Maintenance procedure

Allowtocooldownfor1hour.

2x

5 mm

1x

73062882_0910

Maintenance procedure

4x

3 mm

8 3062882_0910

Maintenance procedure MGK-130

Fig.:Undoallelectricalconnectionsatthefanandthe

ignitiontransformer.

Fig.:Undothescrewsbetweenthefanandthe

mixingchamber.

13 mm

4x

93062882_0910

Maintenance procedure MGK-130

Fig.:Removetheunitcomprisingburnerangeandfan.

6 mm

13 mm

10 3062882_0910

Maintenance procedure MGK-130

Gasket,burnerangegasket.

Fig.:Visualcheck,non-returnvalve.

Checkthatthenon-returnvalveoperatesfreely.

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