Wolf MGK-130 Manuale utente
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 Subjecttotechnicalmodications GB
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
23062883_0910
Standard delivery
Standard delivery
Conversion kit, product no. 87 51 351 from G20/G25 to G31
No. Material Mat no. Pce
1Gasrestrictor6.7 1730640 1
2Conversiontypeplate 8751389 1
3Installationinstructions 3061675 1
4 GasketgascombinationvalveoutletO-ring23.47x2.62 39 10 126 1
5 GasketgascombinationvalveinletO-ring26x4 39 03 010 1
6GascombinationvalveLPG 2744621 1
7 BoilercodingcardforLPGPMGK-130 2744356 1
Note Readtheconversioninstructionscarefullybeforecommencingtheinstallation.
WOLF conversion kit to G31 for MGK-130
Priortochangingthegasrestrictor,performthestandardsettingsatthegascombinationvalve.
Otherwisethereisariskofinjuryandmateriallossesontheboiler.
3
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.:Ignitiontransformer,highvoltageignitionelectrode,
combustionchamber.
Dangerfrom'live'electricalcomponents,riskofburning
throughhotcomponents.
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.:Junctionbox:
Dangerfromelectricalvoltage.
43062883_0910
Safety instructions
"NB" indicates technical instructions that
youmustobservetopreventmateriallosses
and malfunctions on the boiler.
NB
Fig.: Gascombinationvalve.
Dangerfromelectricalvoltage.
Escapinggasmaycausepoisoningoranexplosion.
General information
Maintenanceworkmustonlybecarriedoutby
aqualiedheatingcontractor.
Regularmaintenanceandtheexclusiveuse
of original Wolf spare parts are of crucial
importancetothetrouble-freeoperationand
longservicelifeofyourappliance.
We therefore recommend you arrange a
maintenancecontractwithyourlocalheating
contractor.
Fig.: Gasconnection:Riskofpoisoningandexplosion
throughescapinggas.
5
3062883_0910
Conversion to G31
Themainsterminalsare'live'evenwhenthe
ON/OFFswitchhasbeenswitchedOFF.
Isolatetheappliancefromthepowersupply,otherwise
thereisarisktolifefromelectrocution.
Closetheon-sitegastap,otherwisethereis
ariskofsuffocationorexplosion.
Installation
Pivotthecontrolunitliddown.SwitchOFFthe
ON/OFFswitchatthegascondensingboiler.
63062883_0910
Removing the front casing
Undothefrontcasingwithano.5Allenkeyandthe
r.h.sidepanelwithascrewdriver.
Conversion to G31
Risk of burns!
Variouscomponentscangetveryhot.Letthem
cooldownorwearprotectivegloves,otherwise
thereisariskofburns.
7
3062883_0910
Fig.:Gascombinationvalve.
Zeropoint
screw,Tx40
Torx(under
thecover)
Gas type Zero point
G20 1 ¾turns
G31 1 ¾turns
Carefullyturnthescrewfullyhomeandthenundoas
follows:
Standard setting for different gas types:Turnanti-
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.
NB
Conversion to G31
2. Replacing the gas combination valve and the gas
restrictor
a)Undotheelectricalconnectionsatthegascombination
valve(GCV)(3screws).
Fig.:Gascombinationvalve.
3screws
b) Undothemixerwithitsmountingplateandinletpipe
fromthefan(3screws).
3screws
83062883_0910
d) UndotheGCVfromthemixer(4screws).
c)Undothescrewsbetweenthegaspipeandthe
GCV(4screws).
e) Removethegasrestrictor.
For G20 and G31
Fit suitable restrictor with O-ring 23.47 x 2.62 into
GCV.
Conversion to G31
9
3062883_0910
Conversion to G31
Fitthegaspressurelimitertothenewgas
combination valve.
Undoandremovethescrewforthegassupply
pressureonthenewgascombinationvalve.
ReplaceO-ring26x4atthegasinlet.
f) Replacing the gas combination valve when
converting from natural gas to LPG
Removethegaspressurelimiterfromtheoldgas
combination valve.
10 3062883_0910
g) RettheGCVandmixer.
h)SecuretheGCVandmixeronthegaspipe.Donot
forgettheO-ring.
i) Securethemixerwithitsmountingplateandinlet
pipetothefan.
Conversion to G31
j) SecuretheelectricalconnectionsontheGCV.
3screws
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3
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