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Technical Information and
Installation Instructions
Oil Burners GB2020 / GB2025
May 2003
Hoval Schweiz
Hoval Herzog AG
CH-8706 Feldmeilen
General-Wille-Str. 201
Tel. 01 / 925 61 11
Fax 01 / 923 11 39
Hoval Österreich
Hoval Gesellschaft mbH
A-4614 Marchtrenk
Hovalstrasse 11
Tel. 07243 / 550-400
Fax 07243 / 550-17
Subject to alterations
4 203 740 / 00
Hoval Deutschland
Dipl. Ing. Karl Hagenberger GmbH
D-85609 Aschheim-Dornach
Karl-Hammerschmidt Strasse 45
Tel. 089 / 92 20 97-0
Fax 089 / 92 20 97-77
For further addresses, see last page
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Summary of Contents for Hoval GB2020-M16
- Page 1 Oil Burners GB2020 / GB2025 May 2003 Subject to alterations 4 203 740 / 00 Hoval Schweiz Hoval Österreich Hoval Deutschland Hoval Herzog AG Hoval Gesellschaft mbH Dipl. Ing. Karl Hagenberger GmbH CH-8706 Feldmeilen A-4614 Marchtrenk D-85609 Aschheim-Dornach General-Wille-Str. 201...
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Page 2: Table Of Contents
Contents General information ........................2 Safety notices ..........................2 Servicing ............................2 Conformity declaration........................3 Technical specifications........................ 3 Installing flange and burner ......................3 Establishing electrical connection of boiler control system............4 Oil pump ............................4 Installing oil lines........................... 5 Changing nozzles ......................... -
Page 3: Declaration Of Conformity
4. Declaration of conformity This is to certify that the HOVAL GB2020 and GB2025 oil fan burners comply with the fundamental require- ments of the following directives: • "Low-Voltage Directives“ in compliance with directive 73/23/EEC in conjunction with DIN VDE 0700 Part 1/ issue 04.88 and DIN VDE 0722/issue 04.83... -
Page 4: Establishing Electrical Connection Of Boiler Control System
7. Establishing electrical connection of boiler control system Establish the electrical connection in the supplied plug element in accordance with the wiring diagram while complying with local regulations. Protect the supply line with a 10 A fuse. It is expedient to use a flexible cable. If the plug element is already wired, check the connections in accordance with the wiring diagram below. -
Page 5: Installing Oil Lines
Maximaler Ölstand höher als tiefster Punkt der Entnahmeleitung point of extraction line Maximum oil level lower than Maximaler Ölstand tiefer als die burner pump Brennerpumpe Hoval oil burner for singel-line Hoval-Ölbrenner für 1-Strang-Anschluß mit Rücklaufzuführung connection with return feed Ölpumpe Oil pump Ölschläuche am Brenner Oil hoses on burner Feinfilter mit Rücklaufzuführung... -
Page 6: Changing Nozzles
10.Changing nozzles -Hook the mounting plate in service position. - Release the ignition cable from the ignition electrode. - Detach the air sleeve upwards. - Release the oil nozzle (16 mm A/F engineer’s wrench), securing the nozzle connection against turning with a 19 mm A/F engineer’s wrench in the process. -
Page 7: Adjusting Recirculation
13.Adjusting recirculation The recirculation dimension has been preset ex-works but can be adapted to the different plant conditions. It is possible to check the correct setting of the recirculation rate by measuring the emission values (NOx, CO) while taking into account the starting performance. To adjust, release the lock nut (13 mm A/F), gripping the knurled nut (15 mm A/F) in the process (see fig., Sec.12). -
Page 8: Operability Check Of The Flame Monitoring Control Device
15.Operability check of the flame monitoring control device The DKO 974 control box has a microprocessor-controlled programme sequence which produces excep- tionally stable cycles regardless of fluctuations in the power supply and the ambient .temperature The built- in visual information system enables continuous monitoring of the current status and also indicates the rea- sons for automatic cut-outs. - Page 9 Operability check A safety check of the flame failure system must be carried out when the appliance is first commissioned and after any inspections or long periods of inactivity. Startup attempt with darkened flame sensor: The burner must switch to fault after the end of the safety period. Startup with lit flame sensor: The control device must switch to fault, see IRD operability check.
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Page 10: Boiler/Burner Matching
16.Boiler/burner matching Precise boiler/burner matching is necessary for low-emission and energy-saving combustion. For this pur- pose a burner is assigned to the boiler in accordance with the working ranges and in consideration of the fur- nace resistance. Via the sliding flange set the insertion depth of the burner tube to suit the relevant burner chamber. -
Page 11: Circuit Diagram
19.Circuit diagram Boiler control Burner (optional) (optional) Flame failure controller Key to colours: Preheater bl = blue Ext. fuse (recommended: max. 10 AF) br = brown F21 Ext. temp. controller ge = yellow Ext. safety temperature limiter gr = grey H11 Ext. -
Page 12: Troubleshooting
20.Troubleshooting Fault Cause Remedy Fuse faulty Replace Safety thermostat locked Unlock Burner motor not oper- Temperature of controller setting exceeded Renewed start attempt after temperature drop ating Control box faulty Replace Motor faulty Replace a) with flame formation: Flicker detector contaminated, faulty, not cor- Clean, replace, connect correctly or adjust sen- rectly connected or not correctly adjusted sitivity... -
Page 13: Burner Structural Dimensions / Boiler Connecting Dimensions
21.Burner structural dimensions / boiler connecting dimensions All dimensions in mm. (140-180) Dimension C, see table of settings Boiler door Spacer... - Page 14 Tel. 0512/36 40 50, kd.wien@hoval.at kc.marchtrenk@hoval.at Fax 0512/36 40 50 25 kd.innsbruck@hoval.at Germany Dipl. Ing. Karl Hagenberger GmbH Hoval Vertriebs- und Servicesenter Ost Fa. Niwek Bayern Fa. Jentzsch Wachtelberg 15 Karl-Hammerschmidt Strasse 45 Tauernstrasse 53 D-97273 Kürnach D-85609 Aschheim-Dornach D-01279 Dresden Tel.
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