Wolf MGK-130 Instructions Manual

Brand: Wolf

Model: MGK-130

Type: Instructions Manual

Instructions for conversion to

LPG P (G31)

Gas condensing boilers MGK-130

Conversion kit, product no. 87 51 351

from G20 to G31

Document no. 3062883_0910 Subjecttotechnicalmodications

These installation instructions are to be retained by the user.

We cannot accept any warranty claims if these operating instructions have not been

observed.

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

3062883_0910

Standard delivery

Conversion kit, product no. 87 51 351 from G20/G25 to G31

No. Material Mat no. Pce

1 Gasrestrictor6.7 1730640 1

2 Conversiontypeplate 8751389 1

3 Installationinstructions 3061675 1

4 GasketgascombinationvalveoutletO-ring23.47x2.62 39 10 126 1

5 GasketgascombinationvalveinletO-ring26x4 39 03 010 1

6 GascombinationvalveLPG 2744621 1

7 BoilercodingcardforLPGPMGK-130 2744356 1

Note Readtheconversioninstructionscarefullybeforecommencingtheinstallation.

WOLF conversion kit to G31 for MGK-130

Priortochangingthegasrestrictor,performthestandardsettingsatthegascombinationvalve.

Otherwisethereisariskofinjuryandmateriallossesontheboiler.

3062883_0910

Safety instructions

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.

Fig.:Ignitiontransformer,highvoltageignitionelectrode,

combustionchamber.

Dangerfrom'live'electricalcomponents,riskofburning

throughhotcomponents.

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 on the boiler.

Fig.:Junctionbox:

Dangerfromelectricalvoltage.

3062883_0910

Safety instructions

"NB" indicates technical instructions that

you must observe to prevent material losses

and malfunctions on the boiler.

Fig.: Gascombinationvalve.

 Dangerfromelectricalvoltage.

 Escapinggasmaycausepoisoningoranexplosion.

General information

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yourlocalheating

contractor.

Fig.: Gasconnection:Riskofpoisoningandexplosion

throughescapinggas.

3062883_0910

Conversion to G31

Themainsterminalsare'live'evenwhenthe

ON/OFFswitchhasbeenswitchedOFF.

Isolatetheappliancefromthepowersupply,otherwise

thereisarisktolifefromelectrocution.

Closetheon-sitegastap,otherwisethereis

ariskofsuffocationorexplosion.

Installation

Pivotthecontrolunitliddown.SwitchOFFthe

ON/OFFswitchatthegascondensingboiler.

3062883_0910

Removing the front casing

Undothefrontcasingwithano.5Allenkeyandthe

r.h.sidepanelwithascrewdriver.

Conversion to G31

Risk of burns!

Variouscomponentscangetveryhot.Letthem

cooldownorwearprotectivegloves,otherwise

thereisariskofburns.

3062883_0910

Fig.:Gascombinationvalve.

Zeropoint

screw,Tx40

Torx(under

thecover)

Gas type Zero point

G20 1 ¾turns

G31 1 ¾turns

Carefullyturnthescrewfullyhomeandthenundoas

follows:

Standard setting for different gas types:Turnanti-

clockwise.

1. Standard setting at the gas combination valve

Make the standard settings at the gas

combination valve in accordance with the

table. Otherwise there is a risk of damage to

the appliance.

Conversion to G31

2. Replacing the gas combination valve and the gas

restrictor

a)Undotheelectricalconnectionsatthegascombination

valve(GCV)(3screws).

Fig.:Gascombinationvalve.

3screws

b) Undothemixerwithitsmountingplateandinletpipe

fromthefan(3screws).

3screws

3062883_0910

d) UndotheGCVfromthemixer(4screws).

c)Undothescrewsbetweenthegaspipeandthe

GCV(4screws).

e) Removethegasrestrictor.

For G20 and G31

Fit suitable restrictor with O-ring 23.47 x 2.62 into

GCV.

Conversion to G31

3062883_0910

Conversion to G31

Fitthegaspressurelimitertothenewgas

combination valve.

Undoandremovethescrewforthegassupply

pressureonthenewgascombinationvalve.

ReplaceO-ring26x4atthegasinlet.

f) Replacing the gas combination valve when

converting from natural gas to LPG

Removethegaspressurelimiterfromtheoldgas

combination valve.

3062883_0910

g) RettheGCVandmixer.

h)SecuretheGCVandmixeronthegaspipe.Donot

forgettheO-ring.

i) Securethemixerwithitsmountingplateandinlet

pipetothefan.

Conversion to G31

j) SecuretheelectricalconnectionsontheGCV.

3screws

3062883_0910

settings

Carry out the adjustments in the order given below. At the factory, the gas combination valve has

been set up for natural gas H (G20). Only adjust the gas combination valve after the system has been

changed to a different gas type.

A) CO

setting at the upper load (emissions test

mode) for natural gas

• Turnclockwise-lowersCO

content

• Turnanti-clockwise-raisesCO

content

• Terminatetheemissionstestmodebyreturningthe

temperatureselectortoitsoriginalposition.

Appliance open(withoutcasing)atupper load

G20

9.2% ± 0.2%

G31(check)

11.0% ± 0.2%

Fig.:Fluegastestattheintegraltestport.

Testport

• Pivotthecontrolunitliddown.

Unlockthecasingcoverwiththel.h.andr.h.

turnbuckles.Releasethebottomofthecasingcover

andunhookatthetop.

• Removethescrewfromthel.h."Fluegas"testport.

• InsertthetestprobeoftheCO

testinstrumentinto

the"uegas"testport(approx.120mm).

• Turn the temperature selector to "Emissions test"

 (Statusindicatorringashesyellow.)

• Ensurethattheboilerisnotlimitedelectronically.

• ChecktheCO

contentatfullload,andcomparethe

actualvalueswiththoseinthetablebelow.

• Correct the CO

 setting as required using the gas

throughput screw on the gas combination valve in

accordancewiththetable.

The upper load cannot be adjusted for LPG.

Fig.:Gascombinationvalve.

Gasow

adjustingscrew

(onlyfornatural

gas)

3. Setting the gas / air mixture prior to replacing the boiler coding card for conversions from LPG to natural

gas

Settings must be made with the natural gas boiler coding card to be able to set the lower output in

soft start for LPG P.

3062883_0910

Appliance open(withoutcasing)atlower load

G31

12.5%±0.2%

B) CO

setting at the lower load (soft start)

• Restart the gas condensing boiler by pressing the

"Resetbutton".

• CheckandifnecessarycorrecttheCO

contentapprox.

30saftertheburnerstartwiththeCO

tester,byne

adjustingthezeropointadjustingscrewinaccordance

withthetable.Makethisadjustmentwithin120sof

theburnerstart.Ifnecessary,repeatthestartphase

forsettingproceduresbypressingtheresetbutton.

• Turnclockwise-raisesCO

content.

• Turnanti-clockwise-lowersCO

content.

Fig.:Gascombinationvalve.

Zeropointscrew,Tx40

Torx(underthecover)

Gasthroughputscrew

(slottedscrew)onlyfor

naturalgas

settings

3062883_0910

3. Changing the boiler coding card

Conversion to G20, G25 or G31

a)Whereappropriate,recordtheparameterchanges

comparedtotheirfactorysettings

 (e.g.output,Tvmax,output1,input1,address

setting).

b) Isolatetheappliancefromthepowersupply.

c) Pivotoutthecontrolunit.

d) Opentheboilercodingcardcover.

e) Pullofftheboilercodingcardandpluginthenew

one.

f) Rettheboilercodingcardcover.

Boilercodingcardcover

Boilercodingcard

4. Function check

a) Aftercommissioning,themulti-functionindicatoron

theON/OFFswitchbeginstoash.Pressthereset

buttontwice.

b) Theburnerstarts.

c) Function check:Closethegastap.

 Faultcode12orindicatorringashesred.

d) Opengastap,pressresetbutton.

 Theburnerstarts.

e) Adjustparametersifchangesfromthefactory

settingsarerequired.

f) Checkthefunctionofcontrolaccessories.

3062883_0910

5. Checking the CO

setting

• Aftercompletingthework,retthecasingcoverand

checktheCO

valuewiththeapplianceclosed.

ObservetheCOemissionswhilstmakingCO

adjustments. The gas combination valve is

incorrectlyadjustediftheCOvalueis>200ppm

whentheCO

valueiscorrect.Takethefollowing

steps:

Standardsetting:Carefullyturnthescrewfullyhomeand

thenundoasdescribedunderpoint1"Standardsetting

atthegascombinationvalve".

Appliance closed(withcasing)

insoftstart

G20/9.1%±0.5% G31

11.5±0.5%

Appliance closed(withcasing)

at upper load

G20/9.3%±0.5% G31

11.3±0.5%

Check in soft start following the installation

of the LPG boiler coding card. The load in

soft start with the LPG boiler coding card is

not equal to the lower load.

6. Completing the settings

• Shutdowntheboilerandclosethetestportsandhose

nipples;checkfortightness.

Conversion to G20, G25 or G31

3062883_0910

7. Updating the type plate

• Fromtheconversiontypeplate,cutouttheareathat

correspondstothegastype.

• Overlaytherespectivetypeplateontheappliancewith

thecut-outsection.

Nennwärmebelastung

Heizen

Nennleistung

Heizen 50/30°C

Heizen 80/60°C

Q = 29 - 120 kW

P = 30 - 126 kW

P = 28 - 117 kW

Eingestellt auf

3P - G31 - 50 mbar

B23, B33, C33, C43, C53, C83

C63 gem. Montageanleitung

Warmwasser Q = 29 - 120 kW

Art

MGK-130

Nennwärmebelastung

Heizen

Nennleistung

Heizen 50/30°C

Heizen 80/60°C

Q = 74 - 280 kW

P = 78 - 294 kW

P = 71 - 275 kW

Eingestellt auf

Art B23, B33, C33, C43, C53, C83

C63 gem. Montageanleitung

Warmwasser Q = 74 - 280 kW

3P - G31 - 50 mbar

MGK-300

Nennwärmebelastung

Heizen

Nennleistung

Heizen 50/30°C

Heizen 80/60°C

Q = 53 - 200 kW

P = 56 - 208 kW

P = 51 - 194 kW

Eingestellt auf

B23, B33, C33, C43, C53, C83

C63 gem. Montageanleitung

Warmwasser Q = 53 - 200 kW

Art

3P - G31 - 50 mbar

MGK-210

Nennwärmebelastung

Heizen

Nennleistung

Heizen 50/30°C

Heizen 80/60°C

Q = 43 - 160 kW

P = 46 - 167 kW

P = 41 - 156 kW

Eingestellt auf

B23, B33, C33, C43, C53, C83

C63 gem. Montageanleitung

Warmwasser Q = 43 - 160 kW

Art

3P - G31 - 50 mbar

MGK-170

Nennwärmebelastung

Heizen

Nennleistung

Heizen 50/30°C

Heizen 80/60°C

Q = 60 - 240 kW

P = 62 - 250 kW

P = 58 - 233 kW

Eingestellt auf

B23, B33, C33, C43, C53, C83

C63 gem. Montageanleitung

Warmwasser Q = 60 - 240 kW

Art

3P - G31 - 50 mbar

MGK-250

8751389 08/08

Conversiontypeplate.

Conversion to G20, G25 or G31



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

Wolf MGK-130 Instructions Manual

Wolf MGK-130 Instructions Manual

Wolf MGK-130 Instructions Manual

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