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Wolf MGK-130 Instructions Manual
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Wolf MGK-130 Instructions Manual

Gas condensing boilers. conversion to lpg p (g31)
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Instructions for conversion to
LPG P (G31)
Gas condensing boilers MGK-130
Conversion kit, product no. 87 51 351
from G20 to G31
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
Document no. 3062883_0910
Subject to technical modifications
GB

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Summary of Contents for Wolf MGK-130

  • Page 1 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 Document no. 3062883_0910 Subject to technical modifications...

  • Page 2: Standard Delivery

    Standard delivery 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. Standard delivery Conversion kit, product no. 87 51 351 from G20/G25 to G31 Material Mat no. Gas restrictor 6.7 17 30 640 Conversion type plate 87 51 389 Installation instructions 30 61 675 Gasket gas combination valve outlet O-ring 23.47 x 2.62 39 10 126 Gasket gas combination valve inlet O-ring 26 x 4...

  • Page 3: Safety Instructions

    Safety instructions 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.
  • Page 4 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 qualified 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...
  • Page 5 Conversion to G31 Installation Pivot the control unit lid down. Switch OFF the ON/OFF switch at the gas condensing boiler. 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. 3062883_0910...
  • Page 6 Conversion to G31 Removing the front casing Undo the front casing with a no. 5 Allen key and the r.h. side panel with a screwdriver. 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...
  • Page 7 Conversion to G31 1. Standard setting at the gas combination valve Make the standard settings at the gas combination valve in accordance with the Zero point table. Otherwise there is a risk of damage to screw, Tx40 the appliance. Torx (under the cover) Carefully turn the screw fully home and then undo as follows: Standard setting for different gas types: Turn anti- clockwise.
  • Page 8 Conversion to G31 c) Undo the screws between the gas pipe and the GCV (4 screws). d) Undo the GCV from the mixer (4 screws). e) Remove the gas restrictor. For G20 and G31 Fit suitable restrictor with O-ring 23.47 x 2.62 into GCV. 3062883_0910...
  • Page 9 Conversion to G31 f) Replacing the gas combination valve when converting from natural gas to LPG Remove the gas pressure limiter from the old gas combination valve. Undo and remove the screw for the gas supply pressure on the new gas combination valve. Fit the gas pressure limiter to the new gas combination valve. Replace O-ring 26 x 4 at the gas inlet. 3062883_0910...
  • Page 10 Conversion to G31 g) Refit 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. j) Secure the electrical connections on the GCV. 3 screws 3062883_0910...
  • Page 11 settings 3. Setting the gas / air mixture prior to replacing the boiler coding card for conversions from LPG to natural 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.
  • Page 12 settings B) CO setting at the lower load (soft start) Zero point screw, Tx40 • Restart the gas condensing boiler by pressing the Torx (under the cover) "Reset button". • Check and if necessary correct the CO content approx. 30 s after the burner start with the CO tester, by fine Gas throughput screw adjusting the zero point adjusting screw in accordance (slotted screw) only for with the table. Make this adjustment within 120 s of natural gas 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.
  • Page 13 Conversion to G20, G25 or G31 3. Changing the boiler coding card Boiler coding card cover 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) Refit the boiler coding card cover. Boiler coding card 4. Function check a) After commissioning, the multi-function indicator on the ON/OFF switch begins to flash. Press the reset button twice. b) The burner starts. c) Function check: Close the gas tap. Fault code 12 or indicator ring flashes red.
  • Page 14 Conversion to G20, G25 or G31 5. Checking the CO setting 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. • After completing the work, refit the casing cover and check the CO value with the appliance closed.
  • Page 15 Conversion to G20, G25 or G31 7. Updating the type plate • From the conversion type plate, cut out the area that corresponds to the gas type. 3P - G31 - 50 mbar Eingestellt auf • Overlay the respective type plate on the appliance with MGK-130 the cut-out section. B23, B33, C33, C43, C53, C83 C63 gem. Montageanleitung Nennwärmebelastung Warmwasser Q = 29 - 120 kW...
  • Page 16 Wolf GmbH · Postfach 1380 · D-84048 Mainburg · Tel. +49-8751/74-0 · Fax +49-8751/741600 · Internet: www.wolf-heiztechnik.de...