Buderus Logano plus GB312 Installation And Service Instructions Manual

[Page 1] Buderus Logano plus GB312

Read carefully before Installation and Maintenance CAUTION! Observe the safety instructions of this installation and maintenance manual before placing the boiler in operation. DANGER! If installation, adjustment, modification, operation or mainten...

[Page 2] Buderus Logano plus GB312

Table of contents Logano plus GB312 – 6 720 806 273 (2013/01)2 Table of contents 1 General safety instructions and explanation of symbols . . . . 4 1.1 Key to symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.2 Saf...

[Page 3] Buderus Logano plus GB312

Table of contents Logano plus GB312 – 6 720 806 273 (2013/01) 3 8 Shutting down the heating system . . . . . . . . . . . . . . . . . . . . . 40 8.1 Shutting down the heating system by means of the controller . . . . . . . . . . . . . . . . ...

[Page 4] Buderus Logano plus GB312

1 General safety instructions and explanation of symbols Logano plus GB312 – 6 720 806 273 (2013/01)4 1 General safety instructions and explanation of symbols 1.1 Key to symbols Warnings The following keywords are defined and can be used in this d...

[Page 5] Buderus Logano plus GB312

2 Product information Logano plus GB312 – 6 720 806 273 (2013/01) 5 Inspection/maintenance Heating systems should be regularly maintained for the following reasons: • to achieve a high level of efficiency and to operate the system economically...

[Page 6] Buderus Logano plus GB312

2 Product information Logano plus GB312 – 6 720 806 273 (2013/01)6 2.3 Compliance with standards and regulations The design and mode of operation of this boiler comply with the American National Standard ANSI Z21.13/CSA4.9, latest edition for Ga...

[Page 7] Buderus Logano plus GB312

2 Product information Logano plus GB312 – 6 720 806 273 (2013/01) 7 2.5 Heating system water quality As pure water cannot be used for heat transfer, water quality is important. Poor water quality can damage heating systems due to scale formation...

[Page 8] Buderus Logano plus GB312

2 Product information Logano plus GB312 – 6 720 806 273 (2013/01)8 2.8 Product information The Logano plus GB312 (  Fig. 1) is supplied with a fully factory- installed and wired Logamatic BC10 basic control unit ( Fig. 2, page 9). Fig. 1 ...

[Page 9] Buderus Logano plus GB312

2 Product information Logano plus GB312 – 6 720 806 273 (2013/01) 9 Fig. 2 Controls on the Logamatic BC10 base controller [1] ON/OFF switch [2] Knob for hot water temperature setting [3] "Water heating" LED [4] Status display [5] Knob...

[Page 10] Buderus Logano plus GB312

2 Product information Logano plus GB312 – 6 720 806 273 (2013/01)10 2.10 Dimensions and Specifications 2.10.1 Logano plus GB312 dimensions Fig. 3 Connections and dimensions for Logano plus GB312 (sizes in inches) AA = Flue connection AL = Combus...

[Page 11] Buderus Logano plus GB312

2 Product information Logano plus GB312 – 6 720 806 273 (2013/01) 11 2.10.2 Specifications Boiler size (output - no. of heat exchanger sections) Unit 90 - 4 120 - 4 160 - 5 200 - 6 240 - 7 280 - 8 Width B Inch 39.1 39.1 47.3 47.3 55.5 55.5 Dimensi...

[Page 12] Buderus Logano plus GB312

2 Product information Logano plus GB312 – 6 720 806 273 (2013/01)12 Fig. 4 Primary circuit flow resistance, GB312 with check valve x Flow rate in gallon/min (GPM) y Primary pressure drop in psi The boiler is factory-set for: • Natural gas (gas...

[Page 13] Buderus Logano plus GB312

3 Transporting the boiler Logano plus GB312 – 6 720 806 273 (2013/01) 13 3 Transporting the boiler This section describes how to move the boiler safely and without damaging it. 3.1 Lifting and handling the boiler The boiler can be carried to its ...

[Page 14] Buderus Logano plus GB312

4 Installing the boiler Logano plus GB312 – 6 720 806 273 (2013/01)14 Fig. 7 Transporting the boiler using pipes [1] Positions for securing the boiler against slipping [2] Pipe (for carrying) 3.2 Transporting the boiler on rollers If the route t...

[Page 15] Buderus Logano plus GB312

5 Openings for combustion air supply and venting Logano plus GB312 – 6 720 806 273 (2013/01) 15 Fig. 9 Wall clearances in the installation room 4.3 Leveling the boiler To prevent air collecting in the boiler and to allow the condensate to drai...

[Page 16] Buderus Logano plus GB312

6 Installing the boiler Logano plus GB312 – 6 720 806 273 (2013/01)16 Overall air supply within the building Make sure that the installation room has two permanent air vents that are connected to one or more other rooms. When calculating the cros...

[Page 17] Buderus Logano plus GB312

6 Installing the boiler Logano plus GB312 – 6 720 806 273 (2013/01) 17 Observe the following points when installing the flue ducting: • The cross-sectional area of the vent pipe must be calculated according to the applicable regulations. Guidan...

[Page 18] Buderus Logano plus GB312

6 Installing the boiler Logano plus GB312 – 6 720 806 273 (2013/01)18 6.2 Installing the flue system To ensure perfect operation and prevent foreign bodies entering the flue system, it must be fitted with an end piece (a T-piece or a 90°-elbow i...

[Page 19] Buderus Logano plus GB312

6 Installing the boiler Logano plus GB312 – 6 720 806 273 (2013/01) 19 6.4 Installation of the roof penetration of a vertical flue systems Observe the clearances for the roof exit above the roof ( Fig. 14). If the flue passes through ceilings ...

[Page 20] Buderus Logano plus GB312

6 Installing the boiler Logano plus GB312 – 6 720 806 273 (2013/01)20 6.6 Installing the wall penetration for the air pipe To prevent possible recirculation of flue gas, the flue system installer must take account of effects such as the prevailin...

[Page 21] Buderus Logano plus GB312

6 Installing the boiler Logano plus GB312 – 6 720 806 273 (2013/01) 21 6.7 Installing the roof penetration for the air pipe To prevent possible recirculation of flue gas, the flue system installer must take account of effects such as the prevaili...

[Page 22] Buderus Logano plus GB312

6 Installing the boiler Logano plus GB312 – 6 720 806 273 (2013/01)22 6.8 Design of flue and air pipe for direct vent operation Fig. 18 Air supply on the outside wall, flue outlet on the roof [1] Flue outlet (type of outlet depends on chosen man...

[Page 23] Buderus Logano plus GB312

6 Installing the boiler Logano plus GB312 – 6 720 806 273 (2013/01) 23 6.9 Connecting the heating system This chapter details how to make the heating circuit connections. The individual steps involved are: • Safety instructions • Installing B...

[Page 24] Buderus Logano plus GB312

6 Installing the boiler Logano plus GB312 – 6 720 806 273 (2013/01)24 6.9.2 Connecting the boiler to the heating system Fig. 23 Water connection RK Boiler return VK Boiler supply AL Air Inlet Connection 6.9.3 Installing B-Kit The pressure relie...

[Page 25] Buderus Logano plus GB312

6 Installing the boiler Logano plus GB312 – 6 720 806 273 (2013/01) 25 6.9.4 Connecting the central heating supply ▶ Install and seal the heating system supply pipe to the threaded flange supplied. ▶ Insert the seal in the flange joint and ti...

[Page 26] Buderus Logano plus GB312

6 Installing the boiler Logano plus GB312 – 6 720 806 273 (2013/01)26 Fig. 27 Installing the condensate drain [1] Siphon (condensate trap) [2] Condensate pan [3] Siphon outlet to neutralizing system or drain line [4] Siphon vent [5] Cap [6] Hole...

[Page 27] Buderus Logano plus GB312

6 Installing the boiler Logano plus GB312 – 6 720 806 273 (2013/01) 27 ▶ Open the mixing and shut-off valves on the heating water (primary) side. ▶ Connect the hose to the water tap. Push hose onto the hose connection of the boiler fill and ...

[Page 28] Buderus Logano plus GB312

6 Installing the boiler Logano plus GB312 – 6 720 806 273 (2013/01)28 Fig. 30 Pipe connection to gas valve [1] Gas supply [2] Manual shut-off valve (supplied) [3] Sediment trap [4] Gas connection with shutoff valve Disconnect the boiler and its ...

[Page 29] Buderus Logano plus GB312

6 Installing the boiler Logano plus GB312 – 6 720 806 273 (2013/01) 29 6.12 Electrical connections The electrical connections to the boiler must conform to the locally applicable regulations and the relevant requirements of the National Electric...

[Page 30] Buderus Logano plus GB312

6 Installing the boiler Logano plus GB312 – 6 720 806 273 (2013/01)30 Fig. 34 Securing electric cables with cable clips ▶ Slide the controller's top cover into the guides and push downwards. ▶ Secure the controller's top cover with...

[Page 31] Buderus Logano plus GB312

7 Placing the heating system in operation Logano plus GB312 – 6 720 806 273 (2013/01) 31 7 Placing the heating system in operation This section describes the commissioning procedure when using the controller's standard module. To ensure saf...

[Page 32] Buderus Logano plus GB312

7 Placing the heating system in operation Logano plus GB312 – 6 720 806 273 (2013/01)32 Fig. 37 Pressure/temperature gauge ▶ Top up heating water or drain off water via the drain & fill valve until the required operating pressure has been...

[Page 33] Buderus Logano plus GB312

7 Placing the heating system in operation Logano plus GB312 – 6 720 806 273 (2013/01) 33 7.5 Checking the air inlet diaphragm ▶ Check that the air inlet diaphragm on the air inlet connection is present and in contact with the pipe. ▶ Check th...

[Page 34] Buderus Logano plus GB312

7 Placing the heating system in operation Logano plus GB312 – 6 720 806 273 (2013/01)34 7.9 Starting up the controls and burner with the RC35 user interface 7.9.1 Boiler intended for operation with the Logamatic 4000 If the boiler is to be run s...

[Page 35] Buderus Logano plus GB312

7 Placing the heating system in operation Logano plus GB312 – 6 720 806 273 (2013/01) 35 7.10.2 Opening the Service menu on the RC35 and viewing monitor data ▶ Simultaneously press the + + buttons to open the SERVICE MENU. ▶ Turn the k...

[Page 36] Buderus Logano plus GB312

7 Placing the heating system in operation Logano plus GB312 – 6 720 806 273 (2013/01)36 7.12.1 CO 2 content, natural gas type A (minimum output) If CO 2 content is below 9,0 % or above 9,5 %. ▶ Use the low-output adjusting screw to adjust the ...

[Page 37] Buderus Logano plus GB312

7 Placing the heating system in operation Logano plus GB312 – 6 720 806 273 (2013/01) 37 7.15 Function testing During commissioning and annual servicing, check all control and safety devices for proper operation and, where adjustment is possible,...

[Page 38] Buderus Logano plus GB312

7 Placing the heating system in operation Logano plus GB312 – 6 720 806 273 (2013/01)38 7.17 Checking for leaks during operation ▶ With the burner running, use a non corrosive soap / leak detector to test all fittings and connections between th...

[Page 39] Buderus Logano plus GB312

7 Placing the heating system in operation Logano plus GB312 – 6 720 806 273 (2013/01) 39 7.20 Commissioning report ▶ Initial and date the commissioning steps carried out. Commissioning steps Page Readings taken Remarks 1. Fill heating system an...

[Page 40] Buderus Logano plus GB312

8 Shutting down the heating system Logano plus GB312 – 6 720 806 273 (2013/01)40 8 Shutting down the heating system 8.1 Shutting down the heating system by means of the controller Turn off the heating system on the Logamatic BC10 basic control u...

[Page 41] Buderus Logano plus GB312

9 Heating system inspection Logano plus GB312 – 6 720 806 273 (2013/01) 41 9.2 General operations The following operations are not described in any further detail in this document. They have to be carried out nevertheless: ▶ Checking the genera...

[Page 42] Buderus Logano plus GB312

9 Heating system inspection Logano plus GB312 – 6 720 806 273 (2013/01)42 9.6 Determining how dirty the burner and heat exchanger are and cleaning them The boiler can be dry- or wet-cleaned. A long and a short blade are available as accessories f...

[Page 43] Buderus Logano plus GB312

9 Heating system inspection Logano plus GB312 – 6 720 806 273 (2013/01) 43 ▶ Turn the knob counter-clockwise to select diagnosis (indicated by ). ▶ Press the button to open the SERVICE / DIAGNOSIS menu. ▶ Turn the knob counter-clockwi...

[Page 44] Buderus Logano plus GB312

9 Heating system inspection Logano plus GB312 – 6 720 806 273 (2013/01)44 ▶ Carefully draw the burner forwards to remove it. Fig. 58 Removing the burner from the heat exchanger [1] Front hex bolt [2] Rear hex bolt [3] Fixing nuts ▶ Unscrew f...

[Page 45] Buderus Logano plus GB312

9 Heating system inspection Logano plus GB312 – 6 720 806 273 (2013/01) 45 Fig. 61 Wet cleaning the heat exchanger Operations required on the heat exchanger when wet or dry cleaning ▶ Use a hose to flush any dirt residues into the bucket. ▶...

[Page 46] Buderus Logano plus GB312

9 Heating system inspection Logano plus GB312 – 6 720 806 273 (2013/01)46 Length ▶ Check how far the electrode has burned down, i. e. the ignition electrode gap. Fig. 64 Checking electrode position [1] Burner tube [2] Ionization electrode [3...

[Page 47] Buderus Logano plus GB312

9 Heating system inspection Logano plus GB312 – 6 720 806 273 (2013/01) 47 9.7 Checking gas valve for leaks The purpose of this procedure is to check the solenoid valves in the gas valve for leaks. The test should only be carried out by trained a...

[Page 48] Buderus Logano plus GB312

9 Heating system inspection Logano plus GB312 – 6 720 806 273 (2013/01)48 Fig. 67 Testing apparatus set-up for gas valve leak testing A Main shutoff valve on inlet-side gas valve B Solenoid valve 1 C Solenoid valve 2 D Gas shutoff valve on outle...

[Page 49] Buderus Logano plus GB312

9 Heating system inspection Logano plus GB312 – 6 720 806 273 (2013/01) 49 9.11 Servicing and maintenance logs The inspection and maintenance logs can also be used as templates. ▶ Sign and date the completed inspection work. If any condition req...

[Page 50] Buderus Logano plus GB312

9 Heating system inspection Logano plus GB312 – 6 720 806 273 (2013/01)50 Maximum load Minimum load Maximum load Minimum load Maximum load Minimum load Maximum load Minimum load 1. 2. 3. _______% _______% _______% _______% 4. 5. 6. ____in W.C....

[Page 51] Buderus Logano plus GB312

10 Troubleshooting Logano plus GB312 – 6 720 806 273 (2013/01) 51 10 Troubleshooting 10.1 Identifying operating status and resetting faults In the event of a fault, the fault code will flash on the controller display. The controller shows faults ...

[Page 52] Buderus Logano plus GB312

10 Troubleshooting Logano plus GB312 – 6 720 806 273 (2013/01)52 10.2 Operating and fault indications 10.2.1 Status indicator Type 1) Display code Event code Cause Description Test procedure/cause Measure 2P 564 Temperature rises too quickly at ...

[Page 53] Buderus Logano plus GB312

10 Troubleshooting Logano plus GB312 – 6 720 806 273 (2013/01) 53 10.2.2 Fault displays Type 1) Display code Fault code Cause Description Testing sequence/ Cause Measure K 2E 207 The water pressure is < 8.7 psi (0.6 bar). - Is the pressure in...

[Page 54] Buderus Logano plus GB312

10 Troubleshooting Logano plus GB312 – 6 720 806 273 (2013/01)54 V 4U 522 Short-circuit between boiler temperature sensors 1 and 2. A temperature sensor fault was detected in test mode. Check sensor lead. Check connector. Check sensor readings...

[Page 55] Buderus Logano plus GB312

10 Troubleshooting Logano plus GB312 – 6 720 806 273 (2013/01) 55 K 5L 543 No communication with SAFe. The MC10 is not receiving any data from the SAFe. Check whether the plugs on the cables (bus connecting cable and power cable) between th...

[Page 56] Buderus Logano plus GB312

10 Troubleshooting Logano plus GB312 – 6 720 806 273 (2013/01)56 K 6A 577 No flame detected within the safety period. Ionization current < 1.1 μA during safety period. Gas supply/dynamic pressure too low. The gas pressure regulator is not...

[Page 57] Buderus Logano plus GB312

10 Troubleshooting Logano plus GB312 – 6 720 806 273 (2013/01) 57 K 7A 550 Voltage too low. The power supply voltage is too low. The power supply voltage must not drop below 102V. Ensure adequate power supply voltage. K 7A 551 Power failure. T...

[Page 58] Buderus Logano plus GB312

10 Troubleshooting Logano plus GB312 – 6 720 806 273 (2013/01)58 V 8Y 591 Faults when checking the safety sequence. SAFe pressure switch has not tripped. Check whether the gas supply pressure is > 3 inches W.C. Check setting of SAFe pressu...

[Page 59] Buderus Logano plus GB312

10 Troubleshooting Logano plus GB312 – 6 720 806 273 (2013/01) 59 V CO 568 Water pressure sensor fault (cable break). Water pressure sensor break (voltage > 3.5 V). Check connection between SAFe and water pressure sensor for poor contact, ...

[Page 60] Buderus Logano plus GB312

10 Troubleshooting Logano plus GB312 – 6 720 806 273 (2013/01)60 V LL 571 Too many restarts despite resetting. 15 directlly consecutive restarts have taken place. In other words, the same problem was still present after resetting. Important:...

[Page 61] Buderus Logano plus GB312

10 Troubleshooting Logano plus GB312 – 6 720 806 273 (2013/01) 61 10.3 Troubleshooting the safety sequence/pressure switch Faults 8Y/590 (interlocking) Cause: pressure switch in safety sequence has tripped. Description: cut-out in pressure switch ...

[Page 62] Buderus Logano plus GB312

10 Troubleshooting Logano plus GB312 – 6 720 806 273 (2013/01)62 Faults 8L/579 (interlocking) Cause: no gas supply pressure/safety sequence pressure switch cut out. Description: there is no gas pressure present / a pressure switch in the safety s...

[Page 63] Buderus Logano plus GB312

10 Troubleshooting Logano plus GB312 – 6 720 806 273 (2013/01) 63 Faults 8Y/591 (interlocking) Cause: faults when checking the safety sequence. Description: SAFe pressure switch has not responded during safety check. Fig. 71 Troubleshooting pro...

[Page 64] Buderus Logano plus GB312

11 Sensor characteristics Logano plus GB312 – 6 720 806 273 (2013/01)64 11 Sensor characteristics Always measure the temperatures being compared (room, flow, outside and flue gas temperatures) close to the sensor. The chracteristics represent av...

[Page 65] Buderus Logano plus GB312

12 Spare parts Logano plus GB312 – 6 720 806 273 (2013/01) 65 12 Spare parts The following replacement parts are available from Bosch Thermotechnology Corp. Boiler heat exchanger ( Fig. 73) Item no. Description Part No. (Buderus) 90-4 120-4...

[Page 66] Buderus Logano plus GB312

12 Spare parts Logano plus GB312 – 6 720 806 273 (2013/01)66 270 Resonator D110x250 for GB312 pan assy. only for boiler ratings 120kW + 90kW 63041096 1 1 - - - - Comprising: Resonator D=110x250 1 off (x) - 1 - - - - (X) hex-head bolt DIN6921 M8x1...

[Page 67] Buderus Logano plus GB312

12 Spare parts Logano plus GB312 – 6 720 806 273 (2013/01) 67 Fig. 73 Boiler block 6 720 806 275-78.1T 140 120 130 180 150 45 47 47 90 100 110 91 20 155 156 180 170 161 240 191 210 200 180 180 10 40 60 70 80 81 82 70 290 300 300 300 340 300 130 ...

[Page 68] Buderus Logano plus GB312

12 Spare parts Logano plus GB312 – 6 720 806 273 (2013/01)68 Boiler outer casing ( Fig. 74) Item no. Description Part No. (Buderus) 90-4 120-4 160-5 200-6 240-7 280-8 10 Top rear panel GB312-90/120 63038942 1 1 - - - - 10 Top rear panel GB312...

[Page 69] Buderus Logano plus GB312

12 Spare parts Logano plus GB312 – 6 720 806 273 (2013/01) 69 Fig. 74 Boiler outer casing Buderus Logano plus GB312 10 100 30 40 80 80 40 50 110 130 140 140 150 140 140 140 140 140 140 140 140 140 35 35 140 140 150 60 70 20 120 160 140 120 140 ...

[Page 70] Buderus Logano plus GB312

12 Spare parts Logano plus GB312 – 6 720 806 273 (2013/01)70 Heat insulation and programmer ( Fig. 75) Item no. Description Part No. (Buderus) 90-4 120-4 160-5 200-6 240-7 280-8 10 Heat exchanger insulation GB312-90/120 63039100 1 1 - - - - 1...

[Page 71] Buderus Logano plus GB312

12 Spare parts Logano plus GB312 – 6 720 806 273 (2013/01) 71 Fig. 75 Heat insulation and programmer 30 90 0 1 Aut Eco 80 60 70 50 0 40 30 90 Au t 80 60 70 50 0 40 Reset 6 720 806 275-80.1T 10 20 80 100 110 120 90 40 30 40 40 50 60 70 50 40 40 4...

[Page 72] Buderus Logano plus GB312

12 Spare parts Logano plus GB312 – 6 720 806 273 (2013/01)72 Neutralizer ( Fig. 76) Item no. Description Part No. (Buderus) 90-4 120-4 160-5 200-6 240-7 280-8 10 NE 0.1 neutralization unitV2 63035899 1 1 1 1 1 1 Available spare parts: 20 Top ...

[Page 73] Buderus Logano plus GB312

12 Spare parts Logano plus GB312 – 6 720 806 273 (2013/01) 73 Fig. 76 Neutralizer 10 20 30 40 50 50 30 40 6 720 806 275-81.1T ...

[Page 74] Buderus Logano plus GB312

12 Spare parts Logano plus GB312 – 6 720 806 273 (2013/01)74 Burner variants, data plate VM312 US Item no. Description Part No. (Buderus) 90-4 120-4 160-5 200-6 240-7 280-8 10 Gas premix burner VM312-90 "US" EG 8718572063 1 - - - - - 1...

[Page 75] Buderus Logano plus GB312

12 Spare parts Logano plus GB312 – 6 720 806 273 (2013/01) 75 Fig. 77 Burner variants, data plate VM312 US Leistung 120 kW Ser.-Nr. 63038106-00-5194-000042 0031511501 7747101921-03-Brennervarianten, Typenschild VM312 US 10 11 12 13 14 15 20 ...

[Page 76] Buderus Logano plus GB312

12 Spare parts Logano plus GB312 – 6 720 806 273 (2013/01)76 Burner Rod, thermal insulation VM312 US Item no. Description Part No. (Buderus) 90-4 120-4 160-5 200-6 240-7 280-8 10 Seal VM312-90/120 63036113 1 1 - - - - 11 Seal VM312-160 63036114 ...

[Page 77] Buderus Logano plus GB312

12 Spare parts Logano plus GB312 – 6 720 806 273 (2013/01) 77 Fig. 78 Burner Rod, thermal insulation VM312 US 6 720 806 275-83.1T 10 11 12 13 14 20 50 41 60 50 30 60 30 21 22 23 24 ...

[Page 78] Buderus Logano plus GB312

12 Spare parts Logano plus GB312 – 6 720 806 273 (2013/01)78 Manifold VM312 US Item no. Description Part No. (Buderus) 90-4 120-4 160-5 200-6 240-7 280-8 NOTICE!! Manifolds are supplied without seal and heat shield. See assembly: Burner rod, the...

[Page 79] Buderus Logano plus GB312

12 Spare parts Logano plus GB312 – 6 720 806 273 (2013/01) 79 Fig. 79 Manifold VM312 US 6 720 806 275-84.1T 60 60 60 60 70 80 70 80 90 90 100 100 110 50 13 14 15 20 10 60 60 60 60 70 80 70 80 90 90 100 110 120 110 120 120 50 60 60 70 80 90 50 50...

[Page 80] Buderus Logano plus GB312

12 Spare parts Logano plus GB312 – 6 720 806 273 (2013/01)80 Igniter system, fan VM312 US Item no. Description Part No. (Buderus) 90-4 120-4 160-5 200-6 240-7 280-8 11 Igniter electrode VM312 V3 (metal) 7747023449 1 1 1 1 1 1 Available part: 20 ...

[Page 81] Buderus Logano plus GB312

12 Spare parts Logano plus GB312 – 6 720 806 273 (2013/01) 81 Fig. 80 Igniter system, fan VM312 US 6 720 806 275-85.1T 30 30 11 20 50 20 50 60 40 50 20 50 20 70 90 90 100 90 90 80 90 110 70 ...

[Page 82] Buderus Logano plus GB312

12 Spare parts Logano plus GB312 – 6 720 806 273 (2013/01)82 Air inlet, venturi VM312 US Item no. Description Part No. (Buderus) 90-4 120-4 160-5 200-6 240-7 280-8 10 Air inlet connector assy.VM312 63036066 1 1 1 1 1 1 Available spare parts: 20 ...

[Page 83] Buderus Logano plus GB312

12 Spare parts Logano plus GB312 – 6 720 806 273 (2013/01) 83 Fig. 81 Air inlet, venturi VM312 US 6 720 806 275-86.1T 20 30 30 30 40 50 60 51 70 80 90 100 120 130 150 140 110 60 10 ...

[Page 84] Buderus Logano plus GB312

12 Spare parts Logano plus GB312 – 6 720 806 273 (2013/01)84 Gas valve VR4730, gas connector pipe VM312 US Item no. Description Part No. (Buderus) 90-4 120-4 160-5 200-6 240-7 280-8 10 Adapter with ball valve 8718589480 1 1 1 1 1 1 Available spa...

[Page 85] Buderus Logano plus GB312

12 Spare parts Logano plus GB312 – 6 720 806 273 (2013/01) 85 Fig. 82 Gas valve VR4730, gas connector pipe VM312 US 6 720 806 275-87.1T 10 30 40 30 40 50 50 40 50 61 60 62 80 81 90 91 50 100 70 40 40 ...

[Page 86] Buderus Logano plus GB312

12 Spare parts Logano plus GB312 – 6 720 806 273 (2013/01)86 Safe 40 with connecting cable VM312 US Item no. Description Part No. (Buderus) 90-4 120-4 160-5 200-6 240-7 280-8 20 SAFe casing terminal cover 63023925 1 1 1 1 1 1 30 SAFe40 US 774701...

[Page 87] Buderus Logano plus GB312

12 Spare parts Logano plus GB312 – 6 720 806 273 (2013/01) 87 Fig. 83 Safe 40 with connecting cable VM312 US 6 720 806 275-88.1T 30 90 100 110 111 130 120 150 170 180 140 20 80 40 70 60 61 62 63 64 65 50 20 ...

[Page 88] Buderus Logano plus GB312

13 Circuit diagram, internal boiler wiring Logano plus GB312 – 6 720 806 273 (2013/01)88 13 Circuit diagram, internal boiler wiring Fig. 84 Circuit diagram, internal boiler wiring, gas boiler GB 312 USA/CD ...

[Page 89] Buderus Logano plus GB312

14 Examples of Installations Logano plus GB312 – 6 720 806 273 (2013/01) 89 14 Examples of Installations Refer to GB312 Application Manual for additional system piping and wiring configurations. 14.1 Boiler, low-loss header, AM10 Fig. 85 Exampl...

[Page 90] Buderus Logano plus GB312

14 Examples of Installations Logano plus GB312 – 6 720 806 273 (2013/01)90 14.2 Boiler, low-loss header, Logamatic 4000 Fig. 86 Example of installation: Logano plus GB312, low-loss header, Logamatic 4000. Schematic diagram, not necessarily repre...

[Page 91] Buderus Logano plus GB312

14 Examples of Installations Logano plus GB312 – 6 720 806 273 (2013/01) 91 14.3 2 Boilers , low-loss header, Logamatic 4000 with FM456 Module Fig. 87 Example of installation: 2 boilers, low-loss header, Logamatic 4000 with FM456 Module. Schemat...

[Page 92] Buderus Logano plus GB312

List of keywords Logano plus GB312 – 6 720 806 273 (2013/01)92 List of keywords C Cleaning bladeDry cleaning ......................................... 44 Cleaning cover ...................................................... 43 D DirectivesStand...

[Page 93] Buderus Logano plus GB312

Logano plus GB312 – 6 720 806 273 (2013/01) 93 Notes ...

[Page 94] Buderus Logano plus GB312

Logano plus GB312 – 6 720 806 273 (2013/01)94 Notes ...

[Page 95] Buderus Logano plus GB312

Logano plus GB312 – 6 720 806 273 (2013/01) 95 Notes ...

[Page 96] Buderus Logano plus GB312

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