Related Manuals for Giersch GG20-LN Series
Summary of Contents for Giersch GG20-LN Series
- Page 1 Technical Information • Installation Instructions GG20-LN Issued April 2024 In the interests of continuous product improvement, technical specifications are subject to change without prior notice!
- Page 2 Contents Overview......................3 General information..........................3 Scope of supply and electrical ratings....................3 Operating instructions ........................... 3 Instruction of operating personnel ......................3 Maintenance and customer service....................... 3 Key for code designation........................4 Technical specifications ........................4 Installation......................5 Installing flange and burner ........................5 Checking electrode setting ........................
- Page 3 Overview Overview General information Installation of a gas-fired heating system must be performed in accordance with the applicable regulations and guidelines. It is therefore the duty of the installer to be familiar with all applicable regulations and re- quirements. Installation, start-up and maintenance must be performed with utmost care. The burner must not be operated in rooms with high levels of air humidity (laundry rooms), dust or corrosive vapours.
- Page 4 Overview Key for code designation GG20/2-Z-L-N(-F)-LN LowNox LowNox Erdgas LL+E ="-N" oder Flüssiggas ="-F" Natural gas LL + E = "-N", liquefied gas 3B/P = "-F" Luftabschlussklappe Air damper Zweistufig 2stage Burner type Baugröße Baureihe Burner series Technical specifications Burner type Technical specifications GG20/1-Z-(M)-L-LN GG20/2-Z-(M)-L-LN...
- Page 5 Installation Installing flange and burner Important: Secure the sliding flange so that the clam- ping screw 3 is positioned at the top. When installing the sliding flange, only tighten screws 1 and 2 otherwise it will not be possible to secure the burner pipe with screw 3.
- Page 6 Installation Service position Risk of injury due to rotating fan wheel when switching on in the service position. • Loosen the quick-release fasteners (5 pieces) and remove the base plate, • Fit the keyhole openings of the base plate onto the cylinder head screws of the housing and snap into place.
- Page 7 Installation Connect to power supply • De-energise the system. Main switch "OFF". • Check polarity of all connectors. • Wire the plug section according to the wiring diagram. Lay the flexible control line so that the boiler door can still be swivelled. •...
- Page 8 Funktion Control box LME Testing the control unit for proper functioning Danger of fatal injury from electric shocks! Disconnect electrical cable from power supply before carrying out any work on live parts! Troubleshooting may only be carried out by authorised and trained per- sonnel! Unlocking may only be carried out by an autho- rised specialist.
- Page 9 Funktion Key: ..Permanent Green Yellow Safety and switching functions In the event of a flame failure during operation, the fuel supply is immediately switched off and the control box goes into fault mode. A restart takes place in all cases following a mains power failure. A fault is trig- gered immediately if there is flame detection during pre-ventilation.
- Page 10 Start-up Air damper actuator STA The STA 13 B0 servomotor is used to adjust air dam- pers on burners with 2-stage or modulating operation. The setting is made via limit switch cams on the actua- tor roller. The servomotor moves to the air shut-off position (ST0) after each control switch-off.
- Page 11 Start-up Adjusting the mixing head The position of the mixing head is set according to the table on page 13. Setting the ignition electrode/ionisation electrode Die Elektroden sind werkseitig eingestellt. Die angegebenen Maße dienen zur Kontrolle. Ignition electrode 11 ± 0,5 Ignition electrode 5 +2 12 ±...
- Page 12 Start-up Gas burner with Gas ramp ..MB version: Precise pneumatic mixture control for optimum energy utilisation and combustion.. Technical data of the MB gas ramp... Gas types: Gas type family 1, 2 and 3, according to DIN EN 437/EN 2003-09 Inlett pressure: pE : 15 to <...
- Page 13 Start-up Adjustment tables The values given in the tables are only setting values for commissioning. The system settings re- quired in each case must be redetermined if data such as boiler output, calorific value and altitude differ. In any case, readjustment is necessary depending on the system. The maximum output of the burner can only be achieved in the mixing head position pos.
- Page 14 Start-up = 9,3 [kWh/m GG20/2-N-LN Natural gas LL: H Burner output Boiler output Air flap Burner heat Inlet nozzle Gas nozzle Gas flow rate position position position pressure η= 92% [kW] [kW] [ ° ] [mm] [ ° ] [mbar] Stage 2 Stage 1 Stage 2 Stage 1 Stage 2 Stage 1 Stage 2...
- Page 15 Inbetriebnahme Once the installation and assembly work has been completed, the burner can be put into operation. • Measure the inlet pressure with a U-tube manometer on the "p " measuring connection. max. 100 mbar (static pressure) for KEV 220, KEV 225 max.
- Page 16 Start-up Modulating or 2-stage sliding gas burner with gas ramp... Gas supply pressure measuring nozzle A (p Nozzle pressure measuring connection B (p N = zero point (gas nozzle pressure setting at min. output) V = Nozzle pressure to air pressure ratio in the burner tube burner tube (gas nozzle pressure setting at max.
- Page 17 Inbetriebnahme Set min. power 1st level: Nozzle pressure Min. output • Set the burner to low load and correct the flue gas Min. Output Adapt values at "N". for GG20-M-L-LN: ST1/min. output Power/nozzle pressure enlarge if: too low To do this, set power controller to min. power ST1/min.
- Page 18 Start-up Calculation principle for gas burner adjustment The values given in the tables are setting values for start-up. The necessary system adjustment must be newly determined in each case. General: The calorific value (H ) of fuel gases is generally specified for the normal state (0°C, 1013 mbar).
- Page 19 Servicehinweise / Maße Flow measurement Determining flow duration at gas meter.. Calculated flow duration in seconds t for a flow volume of 200 litres (corresponding to 0.2 m spec for the example given above is:: = 3.3 m × -- - -- - -- - 0 2m...
- Page 20 Service instructions / dimensions Flame monitoring with ionisation monitoring If an alternating voltage is applied between the burner and the ionisation bar, a direct current flows using the rectifying effect of the flame. This ionisation current forms the flame signal and is amplified and trans- mitted to the control unit.
- Page 21 E. 04.99 • G. 11.04.24 SP_1-1039.1...
- Page 22 SP_1-1053.1 E.04.99 • G. 11.04.24...
- Page 23 E. 04.99 • G. 11.04.24 SP_1-1043.2...
- Page 24 SP_1-1059.1 E.04.99 • G. 11.04.24...
- Page 25 Service instructions / dimensions Exploded drawing GG20/1-LN GG20/2-LN...
- Page 26 Service instructions / dimensions GG20/1-LN, GG20/2-LN Seg.No Designation Order no. Ignition and ionisation electrode set 47-90-27757-01 Silicone hose Ø 10 x 1 x 80 lg. 47-90-22466 Ignition and ionisation cable set 47-90-27758 Ignition and ionisation cable set, 100 mm long. 47-90-27759 Gas mixing head GG20/1-N-LN cpl.
- Page 27 Service instructions / dimensions Declaration of conformity for the forced-air gas burner Declaration of Conformity for Gas Burners We, Giersch GmbH, Adjutantenkamp 18 in D-58675 Hemer declare under our responsibility that gas burner type GG20/… is conform with the regulations of these directives...
- Page 28 Working fields according to DIN EN 676 2008-11. The working fields refer to 15°C and 1013 mbar. All information in this technical documentation as well as the drawings, photos and tech- nical descriptions made available by us remain the property of GIERSCH and may not be duplicated without our prior written permission.
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