Operating instructions Gas-fired condensing boiler
Contents
1. 4 Switching on the heating system B O B B WE Fig 5 Programming unit e g RC30 with flap open Buderus Logano plus GB312 gas fired condensing boiler Technical specifications are subject to change without prior notice 7 3 Operating the heating system 3 2 Switching off the heating system e Switch off the ON OFF switch on the control panel position 0 This switches off the boiler and all its components such as the burner Close the main fuel shut off valve SYSTEM DAMAGE from freezing caution When the heating system is switched off it can freeze up in cold weather Leave the heating system permanently switched on as much as possible Protect your heating system from freez ing by draining the pipework for central heating and DHW at the lowest possi ble point 3 3 Emergency measures In the event of an emergency e g a fire proceed as fol lows Close the main fuel shut off valve Isolate the heating system from the power supply us ing the heating system emergency stop switch or the relevant domestic fuse 3 4 Checking the operating pressure topping up with heating water and bleeding the system 3 4 1 When do you need to check the operating pressure Newly added heating water loses much of its volume in the first few days because it releases gases This caus es air pockets and the heating system will start to rum ble With new heating systems check the operating pr2. documents are marked with an arrow gt 1 4 Please observe these instructions You will learn how to use your heating system by arranging for your local heating contractor to instruct you after installing the system and carefully reading these operating instructions Carry out tasks on the boiler only as described in these operating instructions For your safety E RISK TO LIFE AN if personnel are not qualified WARNING Make sure that installation initial start up and maintenance are carried out only by professional heating techni cians Appropriate qualifications are particularly necessary for work on elec trical and fuel carrying parts 1 4 1 If you smell gas RISK TO LIFE AN through the explosion of flammable gases WARNING If you can smell gas there is a risk of ex plosion e No open flames No smoking Do not use lighters Prevent sparks Do not activate any electrical switches including telephones plugs or electrical bells Close the main gas shut off valve Open windows and doors Warn all occupants but do not use doorbells Leave the building e Call your local gas supplier and heating contractor from outside the building If necessary notify police or fire servic es If you hear gas escaping evacuate the affected area immediately Buderus Gas fired condensing boiler Logano plus SB735 Technical specifications are subject to change without p
3. 7 747 009 296 01 2007 EN Operating instructions Gas fired condensing boiler Logano plus GB312 For the user Please read carefully before use Buderus J Contents 1 For Your safety ccsa a ens ae sera arme ee 3 1 1 Aboutthismanual nen 3 1 2 SON ee ee ee 3 1 3 Keytosymbols 22 04 Se as me sea Get eh Band ei Bari hee ee ee 3 1 4 Please observe these instructions 2 2 2m nn m mn nn 3 1 41 lfyoursmellgas ses 2 54 w au a nu an a na ee na na o 3 1 4 2 Instructions for the boiler room 222 nn nn mn nn 4 2 Product description 2 4 23 44504 ee ker se een 5 2 1 Components on the Logano plus GB312 boiler 22mm nenn 5 22 Controls On he BOCl0s rar Fer Ei BASS wee ee eS 6 3 Operating the heating system 2 0 nn 7 3 1 Switching on the heating system 2 ee a 7 3 1 1 Starting the heating system via the control panel and programming unit 7 3 2 Switching off the heating system 42 2 226 2245 4 ee ee ow ee and 8 3 3 Emergency measures 222224424224 cetedce es eetced eto Gow 6s She Ses 8 3 4 Checking the operating pressure topping up with heating water and bleeding the system 8 3 4 1 When do you need to check the operating pressure nn ee es 8 3 4 2 Checking the operating pressure soso 22 na nn nenn 9 3 4 3 Topping up heating water and bleeding the system 2 nn a 9 3 5 Why is regular maintenance important s sosoo a 11 4 Trouble
4. ating contractor if you want to switch over your heating system to a different fuel or operate it with a fuel with different technical specifications Boiler room BOILER DAMAGE J N from contaminated combustion air CAUTION Never use chlorinated cleaning agents or halogenated hydrocarbons such as those contained in spray cans solvents or cleaning agents paints and adhe sives Prevent heavy accumulations of dust SYSTEM DAMAGE from water CAUTION Incase of an acute risk of flooding dis connect the boiler from its power sup ply and shut off the fuel supply before water enters the boiler room gt section 3 2 page 8 f water has entered your heating sys tem have it checked by a professional technician before starting it up again e Any valves controllers and regulating equipment that have come into contact with water must be replaced by a pro fessional technician Buderus 10 Logano plus GB312 gas fired condensing boiler Technical specifications are subject to change without prior notice Operating the heating system EE 3 5 Why is regular maintenance important Heating systems require regular maintenance for the fol lowing reasons To achieve a high level of efficiency and to operate the system economically low fuel consumption To achieve a high level of operational reliability To maintain the cleanest possible combustion SYSTEM DAMAGE from lack of cleaning an
5. d maintenance or CAUTION incorrect cleaning and maintenance Have your heating system inspected cleaned and serviced once a year by professional technicians We recommend you sign a contract covering annual inspections with main tenance on an as required basis Buderus Logano plus GB312 gas fired condensing boiler Technical specifications are subject to change without prior notice 11 Es Troubleshooting 4 Troubleshooting 4 1 Recognising and rectifying faults In case of a fault the fault code will flash on the control panel display The programming unit shows faults as plain text messages A fault exists if the display flashes and indicates some thing other than the current boiler water temperature or an operating message Example 6A the burner will not start Press and hold down the Reset button for about 5 seconds to clear the fault The display shows rE while the reset is implemented A reset is only possible when a fault message is flashing on the display The fault is cleared when the display shows a normal op erating message again Should the fault recur repeat the reset two or three times If the fault cannot be reset Note down the fault message and notify your heating technician SYSTEM DAMAGE IN from freezing CAUTION When the heating system has been shut down due to a fault it can freeze up in cold weather Fig 7 Clear the fault with the Reset but
6. es sure daily at first topping up heating water and bleeding the radiators if needed Later check the operating pressure monthly topping up heating water and bleeding the radiators if need ed Buderus 8 Logano plus GB312 gas fired condensing boiler Technical specifications are subject to change without prior notice 3 4 2 Checking the operating pressure Your heating contractor has set the red needle of the Pressure gauge to the required operating pressure at least 1 bar You can check the design operating pressure for this heating system on gt page 2 Check whether the pressure gauge needle is within the green field If the pressure gauge needle falls below the green field top up the heating water 3 4 3 Topping up heating water and bleeding the system Ask your heating contractor to show you where the boil er fill amp drain valve for topping up the heating water is lo cated on your heating system RISK TO HEALTH from contamination of drinking water CAUTION Ask your heating contractor to show you how to fill your heating system with water Always observe the regulations and standards applicable in your country for the prevention of contamination of drinking water e g by water from heating systems In Europe observe standard EN1717 SYSTEM DAMAGE through temperature stresses CAUTION Temperature stresses can cause cracks if you fill your heating system when it is ho
7. rements Its conformity is confirmed by the CE marking You can view the Declaration of Conformity on the internet at www buderus de konfo or request a copy from your local Buderus of fice Fig NO GG AR WH 1 Logano plus GB312 boiler Control panel Gas burner Boiler front panel Siphon Boiler block with lagging Burner control unit Gas train Boiler casing Buderus Logano plus GB312 gas fired condensing boiler Technical specifications are subject to change without prior notice 5 2 Product description 2 2 Controls on the BC10 USER NOTE e For more information on operation see the gt documentation for the BC10 base controller 7 Fig 2 Controls on the BC10 base controller Pos 1 ON OFF switch Pos 7 Base plate with a slot for a programming unit e g Pos 2 Rotary selector for DHW temperature RC30 behind the cover Pos 3 DHW heating LED Pos 8 Burner LED on off Pos 4 Status display screen Pos 9 Diagnostic plug Pos 5 Rotary selector for maximum boiler temperature Pos 10 Status display button during heating mode Pos 11 Chimney sweep button for flue gas test and Pos 6 Heat demand LED manual mode Pos 12 Reset button Buderus 6 Logano plus GB312 gas fired condensing boiler Technical specifications are subject to change without prior notice 3 Operating the heating system 3 1 Switching on
8. rior notice 3 a For your safety 1 4 2 Instructions for the boiler room RISK TO LIFE A from poisoning WARNING In open flue operation insufficient ventila tion can lead to dangerous flue gas leaks Never close or obstruct air duct or vent apertures or reduce their size Keep the doors of the boiler room closed Prevent small animals from entering the boiler room and in particular the air sup ply apertures e g by means of an air grille The boiler must not be operated until the problem has been remedied RISK OF FIRE A due to flammable materials or liquids WARNING Ensure that there are no flammable ma terials or liquids in the immediate vicini ty of the boiler Buderus 4 Gas fired condensing boiler Logano plus SB735 Technical specifications are subject to change without prior notice 2 Product description Product description 7 2 1 Components on the Logano plus GB312 boiler The boiler is a gas fired condensing boiler with an alu minium heat exchanger The boiler consists of the following Control panel Frame and casing Boiler block with lagging Gas burner The control panel monitors and controls all electrical components of the boiler The boiler block transfers the heat generated by the burner to the heating water The lagging reduces energy loss The design and operation of this product C conforms to European Directives and the supplementary national requi
9. shooting 0 0 ee 12 4 1 Recognising and rectifying faults a soosoo ee 12 Operating pressure Use this fuel only Design operating pressure optimum value Maximum heating system oper ating pressure standard 3 bar bar bar stamp date signature Buderus 2 Gas fired condensing boiler Logano plus GB312 Technical specifications are subject to change without prior notice 1 For your safety 1 1 About this manual These instructions contain important information for the safe and correct operation of the boiler In the following the Logano plus GB312 will generally be referred to as the boiler 1 2 Correct use The boiler may only be used for heating water for the purposes of central heating or domestic hot water DHW in homes or apartment buildings 1 3 Key to symbols The following symbols are used in these instructions RISK TO LIFE A Indicates a possible danger which can lead WARNING to serious injuries or even death if appropri ate care is not taken RISK OF INJURY SYSTEM DAMAGE CAUTION Indicates a potentially dangerous situation which could lead to minor or moderately serious injuries or to damage to property USER NOTE User tips for optimum utilisation and set ting of the equipment plus other useful in formation gt Cross references Cross references to a specific point in the document or to other
10. t The boiler will leak Only fill the heating system when it is cold the flow temperature should be no more than 40 C Fill the heating system slowly via the filling valve pre existing or fitted by customer Watch the display pressure gauge as you do so Once the desired operating pressure is reached stop the procedure Bleed the heating system via the bleed valves on the radiators Top up with water if the pressure drops as a result of bleeding the system Operating the heating system 2 Fig 6 Pressure gauge for sealed systems 1 2 3 Red needle Pressure gauge needle Green field Buderus Logano plus GB312 gas fired condensing boiler Technical specifications are subject to change without prior notice 9 3 Operating the heating system SYSTEM DAMAGE from frequent top ups CAUTION If you need to top up the heating water fre quently the heating system might be dam aged by corrosion or scaling depending on the water quality Ask your heating contractor if you can add your local water without treating it or whether it may need to be treated first e Notify your heating contractor if you of ten need to top up with additional water The right fuel This heating system requires fuel of the correct type and grade to ensure its proper operation SYSTEM DAMAGE IN from the wrong fuel CAUTION Use only the fuel specified gt page 2 Consult your he
11. the heating system Before switching on ensure that The operating pressure is high enough The fuel supply has been opened at the main shut off valve The heating system emergency stop switch is switched on 3 1 1 Starting the heating system via the control panel and programming unit Set both rotary selectors on the control panel to AUT automatic mode The programming unit takes control of the panel in this setting e Switch on the ON OFF switch position 1 The con trol panel checks the current status of the system and the burner may start up When the boiler detects heat demand the start program begins and the burner fires after about 30 seconds Heat demand arises when the central heating or DHW tem perature falls below the set value The LED below the corresponding rotary selector will light up Check the following settings on the programming unit and adjust as required Automatic operating mode Desired room temperature Desired DHW temperature Desired heating program USER NOTE Information on operation e g setting the temperatures can be found in the gt documentation for the programming unit Operating the heating system 2 arm D00 N 5 5 z l y a o m Aut 2 a o Fig 3 Setting the control panel Fig
12. ton e Immediately rectify the fault and restart the heating system If this is not possible protect your heat ing system from freezing by draining the pipework for central heating and DHW at the lowest possible point For more information on possible faults see the gt documentation for the control panels Buderus 12 Logano plus GB312 gas fired condensing boiler Technical specifications are subject to change without prior notice Logano plus GB312 gas fired condensing boiler Technical specifications are subject to change without prior notice Buderus 13 Buderus 14 Logano plus GB312 gas fired condensing boiler Technical specifications are subject to change without prior notice Logano plus GB312 gas fired condensing boiler Technical specifications are subject to change without prior notice Buderus 15 Buderus Cotswold Way Warndon Worcester WR4 9SW Tel 01905 752794 Fax 01905 753130 www buderus commercial co uk BBT Thermotechnik GmbH D 35573 Wetzlar www heiztechnik buderus de info heiztechnik buderus de Buderus
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