Giersch GG20-LN Technical Information And Installation Instructions Download Page 1

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Technical Information • Installation Instructions

Gas

May 2012 edition

In the interests of continuous product
improvement, technical specifications
are subject to change without prior notice!

GG20-LN

Summary of Contents for GG20-LN

Page 1: ...Technical Information Installation Instructions Gas May 2012 edition In the interests of continuous product improvement technical specifications are subject to change without prior notice GG20 LN GB...

Page 2: ...actuator STA 13 B0 10 15 Adjusting the mixing head 11 16 Adjusting the ignition electrode 11 17 Adjusting the inlet nozzle 11 18 Gas burner with gas train 12 19 Adjustment tables 14 20 Modulating or...

Page 3: ...Liquefied gas regulation Part 2 Regulations of cantonal authorities e g fire department regula tions The gas pipe must be designed to conform to the flow rate and the available gas flow pressure and...

Page 4: ...ure with MB VEF 412 1 20 Mode of operation 2 stage modulating Voltage 1 N PE 50 Hz 220 240 V Current consumption start max operation 1 9 1 3 A 3 9 2 6 A Electric motor power at 2800rpm in kW 0 18 0 37...

Page 5: ...g agent for leaks and vent the gas pipe When venting use a hose to discharge the gas safely to the atmosphere For proportional pressure control GG 20 25 Z M L LN with KEV Fit the furnace pressure mete...

Page 6: ...of injury by fan impeller on activation in service position Release quick release locks 5 x and detach base plate Place the keyhole openings in the base plate onto the socket head cap screws of the h...

Page 7: ...or a quick acting fuse rated for max 10 A Connection diagram T8 T7 T6 B5 Buchsenteil X32 X12 am Brenner Steckerteil X31 X11 zum Kessel X31 X32 zu auf Anschluss f r GG20 M L LN Y9 T8 T7 T6 B5 Buchsente...

Page 8: ...nce the faults are not reset after a power failure the burner motor switches on for approx 2 3 sec when the supply voltage is connected before the device goes into fault mode again and displays the la...

Page 9: ...ir controller does not close within a defined time span Air controller opens Air controller contact opens during start up or operation Flame failure Flame failure signal in operation Honeywell DMG 972...

Page 10: ...djusting the burner to the re quired min max output are given in the adjustment ta ble see adjustment tables on pages 14 15 For this Remove the hood from the positioning drive Alter the cam positions...

Page 11: ...e position of the inlet nozzle is preset at the factory but can be adapted to different system operating condi tions altitude above sea level and outputs To adjust undo the screws as shown Set the new...

Page 12: ...nlet pressure The burner is shut down if the gas inlet pressure drops below the set minimum value preset at factory to 12 mbar The burner starts up au tomatically again when the minimum pressure is ex...

Page 13: ...sure max 100 mbar Permissible outlet pressure pG 0 4 to 50 mbar Max pressure drop 50 mbar PE PG Ambient temperature 10 C to 60 C Connecting flanges The connecting flanges are secured with 4 screws The...

Page 14: ...0 8 0 2 0 15 5 7 8 170 85 156 78 100 20 17 0 12 2 7 18 8 9 4 GG20 1 N LN Natural gas E Hi n 10 4 kWh m3 Burner output kW Boiler output 92 kW Air flap position Mixing head position mm Position inlet no...

Page 15: ...sure pG mbar Gas flow rate m3 h Stage 2 Stage 1 Stage 2 Stage 1 2nd stage P9 1st stage P1 Stage 2 Stage 1 Stage 2 Stage 1 107 70 98 64 40 0 27 0 6 6 2 8 10 6 6 9 130 70 120 64 58 0 27 0 9 5 2 8 12 9 6...

Page 16: ...output For this Check the nozzle pressure with U pipe pressure gauge at measuring point pG Adjust gas pressure and air flow dimension A according to adjustment tables Be sure to check the exhaust gas...

Page 17: ...ew V is used to change the ratio to achieve the desired gas nozzle pressures pG see adjustment table and exhaust analysis val ues CO2 CO Burner start Start the burner at low load if the burner does no...

Page 18: ...adjustment procedure of cam position ST1 min output as described above until desired nozzle pressure is achieved As the adjustments V and N mutually influence each other the burner must be run up and...

Page 19: ...o table 989 mbar Gas pressure PG at meter 20 mbar Gas temperature G 16 C Boiler rating Qn 30 kW Efficiency K assumed 92 Calorific value Hi n 10 4 kWh m3 Gas flow in standard state Vn 1 Gas flow in ope...

Page 20: ...m3 for the example given above is VB 3 3 m3 h Gas flow setting Measured flow duration in seconds s Measures Greater than calculated flow duration tsoll Increase gas flow Less than calculated flow dur...

Page 21: ...ent must be carried out directly after post ignition during the safety time The ionisation current must be at least 1 5 A Values below 1 5 A will result in unreliable operation or produce a fault In t...

Page 22: ...4 99 G 09 05 12 25 Circuit diagram GG20 Z L LN till 180 W GG20 Z L LN off 180 W SP_1 658 1 Burner Gas train Boilter controller SP_1 613 3 Burner Gas train Boilter controller Service instructions dimen...

Page 23: ...23 E 04 99 G 09 05 12 GG20 M L LN till 180 W GG20 M L LN off 180 W SP_1 659 1 Burner Gas train Boilter controller SP_1 548 5 Burner Gas train Boilter controller Service instructions dimensions...

Page 24: ...r switch S1 Control box DMG 972 S4 Push button external fault clearance S5 Switch 1st 2nd stag SK1 Auxiliary terminal S1 SK2 Auxiliary terminal S2 T3 Ignition transformer X11 Plug unit for boiler cont...

Page 25: ...ing gas flow set too low Increase starting gas flow No ignition Check ignition electrode and setting ignition transformer and cable see Page 11 Phase and zero mixed up Connect connector unit in correc...

Page 26: ...26 E 04 99 G 09 05 12 27 Exploded drawings GG20 1 LN GG20 2 LN ZBZ_1 507 ZBZ_1 508 Service instructions dimensions...

Page 27: ...180 W with 162 mm flange for GG20 1 47 90 27139 12 Motor 370 W with 162 mm flange for GG20 2 47 90 26066 13 Control box DMG 972 Mod 04 47 90 22232 14 Control box base GG20 1 Z pre assembled 47 90 270...

Page 28: ...s GG20 1 LN GG20 2 LN are in conformity with the following standards EN 60335 EN 50081 EN 50082 EN 676 These products are CE labelled in compliance with the provisions of the following directives 89 3...

Page 29: ...29 E 04 99 G 09 05 12...

Page 30: ...ven in advance Subject to change 30 Burner overall dimensions boiler connection dimensions All dimensions in mm dimensions in GG20 2 LN 31 Working ranges Working ranges according to DIN EN 676 2008 11...

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