Buderus Logano plus GB312 Installation And Service Instructions Manual
  1. Manuals
  2. Brands
  3. Buderus Manuals
  4. Boiler
  5. Logano plus GB312
  6. Installation and service instructions manual

Buderus Logano plus GB312 Installation And Service Instructions Manual

Gas condensing boiler
Hide thumbs Also See for Logano plus GB312:
Table of Contents

Advertisement

Quick Links

See also: Instruction and Installation Manual , Installation Manual
Installation and Service Instructions
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
maintenance of the heating system is carried out by an
unqualified person, this may result in danger to life and
limb or property damage.
The directions of this installation and maintenance
manual must be followed precisely.
For assistance or additional information consult a
qualified installer, service agency or the gas supplier.
DANGER!
Caution!The operating manual is a component of the
technical documentation and must be handed over to
the operator of the heating system.
Discuss the content of this manual with the owner or
operator of the heating system to ensure that they are
familiar with all information required for operation of
the heating system.
If the storage tank will be installed in Massachusetts, it
must be installed by an installer or dealer who is
registered there.
Gas condensing boiler

Advertisement

Table of Contents
loading

Related Manuals for Buderus Logano plus GB312

Summary of Contents for Buderus Logano plus GB312

  • Page 1 If the storage tank will be installed in Massachusetts, it must be installed by an installer or dealer who is registered there. Installation and Service Instructions Logano plus GB312 Read carefully before Installation and Maintenance...

  • Page 2: Table Of Contents

    RC35 ....... 33 2.10.1 Logano plus GB312 dimensions ....10 Starting up the controls and burner with the RC35 user 2.10.2 Specifications .
  • Page 3 List of keywords ........92 Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 4: General Safety Instructions And Explanation Of Symbols

    ▶ Never close off or reduce the size of air intake and outlet openings. ▶ Never operate the boiler unless faults are rectified immediately. ▶ Inform the system user in writing of the problem and associated risk. Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 5: Product Information

    Designated use ▶ Correct and proper installation and adjustment of the burner and the The Logano plus GB312 is designed for heating central heating system controller are the fundamental requirements for safe and economical water and, with the use of an indirect tank, domestic hot water, for operation of the boiler.

  • Page 6: Compliance With Standards And Regulations

    30 days. 2. PERMISSIBLE CARBON MONOXIDE DETECTORS Each carbon monoxide detector as required in accordance with the above provisions shall comply with NFPA 720 and be ANSI/UL 2034- listed and IAS-certified. Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 7: Heating System Water Quality

    Old appliances contain resources that should be recycled. The components are easy to separate and the plastics are marked. This allows the various components to be sorted for appropriate recycling or disposal. Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 8: Product Information

    Product information 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). 7 747 010 720-01.3RS Fig. 1 Logano plus GB312 - main components...

  • Page 9: Scope Of Delivery

    Controls on the Logamatic BC10 base controller ON/OFF switch Scope of delivery Knob for hot water temperature setting The Logano plus GB312 is supplied as standard with a Logamatic BC10 "Water heating" LED basic control unit and the MC10 control unit. Status display ▶...

  • Page 10: Dimensions And Specifications

    Product information 2.10 Dimensions and Specifications 2.10.1 Logano plus GB312 dimensions Fig. 3 Connections and dimensions for Logano plus GB312 (sizes in inches) = Flue connection = Combustion air pipe connection (sealed combustion operation only) = Boiler supply AKO = Condensate outlet...

  • Page 11: Specifications

    Primary pressure drop Maximum supply temperature, heating/hot water ° F 180/180 180/180 180/180 180/180 180/180 180/180 mode High temperature cut-out safety limit (manual reset ° F high limit setting) Table 4 Specifications Logano plus GB312 – 6 720 806 273 (2013/01)
  • Page 12 200 - 6 720.6 240 - 7 868.8 280 - 8 1013.4 Table 5 Gas flow rate (based on gas temperature of 60 °F and air pressure of 30 ins Hg) Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 13: Transporting The Boiler

    ( Fig. 7, page 14). ▶ Secure the pipes at the positions shown in Fig. 7 to prevent slipping, for example, by using adhesive tape. ▶ Carry the boiler to the installation site. Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 14: Transporting The Boiler On Rollers

    7 747 010 720-08.1RS Fig. 8 Transporting the boiler on rollers (dimensions in inches) Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 15: Leveling The Boiler

    ▶ Never use or store easily flammable materials (paper, curtains, clothing, thinners, paints etc.) near the boiler. ▶ Maintain a clearance of 16 inches from the boiler. 7 747 010 720-10.1RS Fig. 10 Leveling the boiler Adjustable feet Level Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 16: Installing The Boiler

    The flue and air supply system (for design of flue connection  Section 6.5, page 19) must be designed for a max. pressure of 0.40 inches W.C. for the overall system (flue and air supply system). Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 17: Attaching The Flue Connector To The Boiler

    With regard to possible restrictions and inspections for flue systems, consult the local building and fire safety authorities. Observe the national regulations. In the Commonwealth of Massachusetts the requirements about carbon monoxide detectors must be followed. Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 18: Installing The Flue System

    90°-elbow as the external end piece for the flue pipe is required. 7 747 010 720-13.1RS Fig. 13 Wall penetration Wall penetration Flue pipes End piece on flue pipe (T-piece or 90°-elbow) External cover plate Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 19: Installation Of The Roof Penetration Of A Vertical Flue Systems

    For details of correct dimensioning, contact the manufacturer Flue pipe adaptor (available separately) concerned. T-piece with siphon to drain condensate Fig. 15 Connecting the air supply for balanced flue operation Bolt Air supply restriction plate Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 20: Installing The Wall Penetration For The Air Pipe

    Buderus can not be held responsible for such 3 ft min. 6 720 647 031-01.1T Fig.

  • Page 21: Installing The Roof Penetration For The Air Pipe

    Buderus can not be held responsible for such adequate for specific installations.

  • Page 22: Design Of Flue And Air Pipe For Direct Vent Operation

    Air intake terminal (90 ° elbow facing vertically downwards) Air inlet (90 ° elbow or T-piece) External wall External wall T-piece with siphon to drain condensate Roof T-piece with siphon to drain condensate Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 23: Connecting The Heating System

    ▶ Make sure that if the boiler is located above the level of the heating system, it is fitted with a low-water cut- off. ▶ The low-water cut-off must be installed when the boiler is installed ( Fig. 22). Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 24: Connecting The Boiler To The Heating System

    We recommend installing an automatic air vent after the ▶ Make sure that the B-kit, including pressure relief B-kit on the supply pipe. valve and check valve, is correctly connected and not omitted from the boiler supply VK. Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 25: Connecting The Central Heating Supply

    ▶ Fill the trap with water. Threaded flange ▶ Seal the trap and flue connections. Non-return check valve (observe direction of flow) Washer ▶ Ensure that the sealing washer with gasket is seated in the cap. Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 26: Filling Heating System And Checking For Leaks

    ▶ It is essential that you use the boiler's built-in siphon. ▶ Make sure that the condensate from the flue system drains correctly. 7 747 010 720-24.2RS Fig. 28 Pressure/temperature gauge Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 27: Providing The Fuel Supply

    ▶ Use soap solution to carry out a proper leak test. running. ▶ Bleed the heating system via the purge valves. ▶ Top with water if the pressure drops as a result of bleeding the system. Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 28: Installation At High Altitudes

    ▶ Never spray or let leak detection agent drip onto Contact Buderus if the installation site is at a high cable entries, plugs or electrical cables/leads. altitude. Adjust the boiler only as specified in the relevant technical documentation and use the adjusting...

  • Page 29: Electrical Connections

    ▶ Slide the cable clip downwards (step 2). ▶ Push against the clip (step 3). ▶ Flip the lever up (step 4). 7 747 010 720-36.1RS Fig. 32 Connecting the power supply Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 30: Leveling The Boiler

    ▶ Screw the adjustable feet in or out so as to level the boiler with the aid of a level. ▶ Retighten the nuts. Fig. 36 Leveling the boiler Bolt Level Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 31: Placing The Heating System In Operation

    If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life. ▶ It is imperative that the commissioning instructions are followed! Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 32: Checking For Leaks

    ▶ Check that the flue connector complies with the applicable regulations ( Section 6.8, page 22). ▶ Check that the flue pressure does not exceed the available pressure of 0.4 inches W.C. (100 Pa). Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 33: Checking The Air Inlet Diaphragm

    ▶ Remove the pressure test port. ▶ Carefully reinstall and tighten threaded plug in test point for gas supply pressure. ▶ Close the gas shutoff valve on the back of the boiler. Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 34: Starting Up The Controls And Burner With The Rc35 User

    (heating pump and tank primary pump) must be adjusted correctly to ensure the heating system works properly. With this in mind, read the installation and maintenance instructions for the RC35 user interface carefully. Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 35: Opening The Service Menu On The Rc35 And Viewing Monitor Data

    7 747 010 720-42.2RS ▶ Use a suitable pressure tester to measure the pressure in the flue (for Fig. 45 Setting medium output location of test point, see Fig. 47, page 36). Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 36: Co2 Content, Natural Gas Type A (Minimum Output)

    The CO content in an air-free state must be below 400 ppm or 0.04% by vol. Levels above 100 ppm indicate incorrect burner adjustment, incorrect appliance settings, dirt in the burner or heat exchanger or burner faults. ▶ Identify and eliminate the fault. Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 37: Function Testing

    Natural gas (gas type A) 3.5" W.C. 7.0" W.C. 10.5" W.C. Table 17 1) The gas supply company must guarantee the min. and max. pressures (as per national regulations for public gas supply). Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 38: Checking For Leaks During Operation

    ▶ Attach the clear pouch containing the technical documentation at a visible position on the boiler side panel. 7 747 010 720-64.1RS Fig. 49 Installing jacket panels Side panel Front panel Bolt Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 39: Commissioning Report

    Remarks Fill heating system and check for leaks – Heating system filling pressure __________________ psi Details in "Water quality requirements for Logano plus GB312" manual taken into account – Concentration of any additives Add.:______________ Conc.:__________% Record gas characteristics: calorific value __________________ BTU/ft³...

  • Page 40: Shutting Down The Heating System

    Turn off the heating system on the Logamatic BC10 basic control unit. When the Logamatic BC10 basic control unit is switched off, the burner Spare parts can be ordered from Buderus with the aid of is automatically shut down at the same time. For more detailed the parts list.

  • Page 41: General Operations

    (see operator's log in "7747010721_GB312_Water Quality Requirements.pdf"). ▶ Bleed the heating system while filling. ▶ Check the heating system for leaks. ▶ Check that the expansion vessel functions properly. Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 42: Determining How Dirty The Burner And Heat Exchanger Are And Cleaning Them

    ▶ Switch off the Logamatic 4000 control system. ▶ Press simultaneously to open the SERVICE ▶ Install the RC35 user interface or the service keys. MENU menu. Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 43: Cleaning The Burner And Heat Exchanger

    7 747 010 720-26.1RS Fig. 57 Unplug the electrical connectors from the burner. 280-8 2.25 (560) High-tension ignition lead Table 19 Cleaning threshold – differential pressure Monitor lead High-tension ignition lead Logano plus GB312 – 6 720 806 273 (2013/01)
  • Page 44 Protect electrical components from moisture. 7 747 010 720-28.2RS Fig. 59 Opening the cleaning covers Cleaning cover on heat exchanger Fixing nuts on cleaning cover Condensate pan cover Fixing nuts on the condensate pan cover Logano plus GB312 – 6 720 806 273 (2013/01)
  • Page 45 ▶ Reinstall the siphon (condensate trap). 7 747 010 720 70 1RS Fig. 62 Cleaning the trap Cleaning the burner ▶ Blow-clean the burner rods and manifold from inside and outside with compressed air. Logano plus GB312 – 6 720 806 273 (2013/01)
  • Page 46 Fig. 66 Checking that the gasket is in place Indicator window on flange Vent flange Fig. 64 Checking electrode position Burner tube Ionization electrode Ignition electrode 7 747 010 720-73.2RS Fig. 65 Adjusting the electrode bracket Bolt Electrode bracket Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 47: Checking Gas Valve For Leaks

    After completing the test, proceed as follows. ▶ Ensure that gas shutoff valve D on the outlet side of the gas valve is closed. Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 48: Checking For Leaks During Normal Operation

    To ensure trouble-free operation, the ionization current at medium and ▶ Sign the inspection and maintenance report in this manual maximum output (when flame is lit) should be at least 3 μA. ( Chapter 9.11, page 49). Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 49: Servicing And Maintenance Logs

    Check that the controller settings are as required ( technical – documentation for controller) Final check of servicing work – Confirmation of properly completed servicing Company stamp/Date/Signature Table 20 Servicing and maintenance logs Logano plus GB312 – 6 720 806 273 (2013/01)
  • Page 50 ____% ____% ____% ____% ____% _____ ppm _____ ppm _____ ppm _____ ppm _____ ppm _____ ppm _____ ppm _____ ppm _______μA _______μA _______μA _______μA _______μA _______μA _______μA _______μA Table 21 Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 51: Troubleshooting

    ▶ Rectify the fault immediately and restart the heating system. ▶ If that is not possible, protect the heating system against freezing by draining the heating system and hot water pipes from the lowest point. Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 52: Operating And Fault Indications

    Check if cast section is blocked with dirt. Table 22 Operating codes1) V = interlocking; B = inhibiting; BC = operating code Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 53: Fault Displays

    Replace SAFe if there against the table (SAFe are discrepancies. document). Table 23 Fault displays 1) V = interlocking; B = inhibiting; BC = operating code Logano plus GB312 – 6 720 806 273 (2013/01)
  • Page 54 SAFe and replace SAFe data is supplied by the MC10. SAFe. Table 23 Fault displays 1) V = interlocking; B = inhibiting; BC = operating code Logano plus GB312 – 6 720 806 273 (2013/01)
  • Page 55 Check function of gas Replace gas valve. valve. Table 23 Fault displays 1) V = interlocking; B = inhibiting; BC = operating code Logano plus GB312 – 6 720 806 273 (2013/01)
  • Page 56 Rectify power supply start-up). up sequence. problem. Table 23 Fault displays 1) V = interlocking; B = inhibiting; BC = operating code Logano plus GB312 – 6 720 806 273 (2013/01)
  • Page 57 Check whether SAFe or high gas pressure switch (accessory) is breaking circuit during operation. Section 10.3, page 87 ff Table 23 Fault displays 1) V = interlocking; B = inhibiting; BC = operating code Logano plus GB312 – 6 720 806 273 (2013/01)
  • Page 58 SAFe. Check voltage at temperature sensor terminals on SAFe against table. Table 23 Fault displays 1) V = interlocking; B = inhibiting; BC = operating code Logano plus GB312 – 6 720 806 273 (2013/01)
  • Page 59 SAFe. There is a malfunction on the SAFe. Table 23 Fault displays 1) V = interlocking; B = inhibiting; BC = operating code Logano plus GB312 – 6 720 806 273 (2013/01)
  • Page 60 Check if voltage dips are occurring (e.g. when large electrical consumers are switched on) If all checks OK, replace SAFe. Table 23 Fault displays 1) V = interlocking; B = inhibiting; BC = operating code Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 61: Troubleshooting The Safety Sequence/Pressure Switch

    Switch boiler OFF and ON again on controller! Does Fault 8L / 579 recur? Replace low pressure switch (available separately) Fig. 69 Troubleshooting procedure 8Y/590 Logano plus GB312 – 6 720 806 273 (2013/01)
  • Page 62 Perform reset! valve connector message? is in proper contact. Replace SAFe Perform reset! Does burner start up? pressure switch. Perform reset! Replace SAFe! Does burner start up? Fig. 70 Troubleshooting procedure 8L/579 Logano plus GB312 – 6 720 806 273 (2013/01)
  • Page 63 Perform reset! valve connector message? is in proper contact. Replace SAFe Perform reset! Does burner start up? pressure switch. Perform reset! Replace SAFe! Does burner start up? Fig. 71 Troubleshooting procedure 8Y/591 Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 64: Sensor Characteristics

    Temperature in °F Resistance in k Two identical "dual sensors" installed in the sensor housing are used as high limit temperature sensors. All temperature sensors on the GB312 have the same sensor characteristic. Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 65: Spare Parts

    Safety valve 3/4"Fx1"F 50PSI 90-280kW 7747017645 Temperature/pressure gauge WINTERS 1/2"M 7747016332 Available accessories for B-Kit GB312 US/CA: Low water indicator SAFGARD 3/4"M 7747016333 High temperature cut-off 3/4"M 7747016328 Table 24 Boiler block Logano plus GB312 – 6 720 806 273 (2013/01)
  • Page 66 Adjustable feet M10x51mm (Set of 4) 5236440 Boiler block gasket set GB312 63037291 Comprising: O-ring Flat gasket D31/47x6 Shore 70 EPDM Glass fabric tape D48/63x0.25 PTFE coated Gasket D=40x2 SIL24 Table 24 Boiler block Logano plus GB312 – 6 720 806 273 (2013/01)
  • Page 67 Spare parts 6 720 806 275-78.1T Fig. 73 Boiler block Logano plus GB312 – 6 720 806 273 (2013/01)
  • Page 68 Air connection cover GB312 63038962 Fascia panel G244/GB312 63037441 Cable conduit GB312 63038445 Panhead screw ST3.9x40 Panhead screw ST3.9x9.5 Blind rivet 4x8 St/St Cover panel US 7747018781 Table 25 Boiler outer casing Logano plus GB312 – 6 720 806 273 (2013/01)
  • Page 69 Spare parts p l u 6 720 806 275-79.1T Fig. 74 Boiler outer casing Logano plus GB312 – 6 720 806 273 (2013/01)
  • Page 70 Cartridge fuse 6.3x32 10AT 125V/US a pack of 7747026156 BC10 basic control unit for UBA3 "US" 63033278 Outdoor temperature sensor FA 5991374 Module EM10 US 18358 Table 26 Heat insulation and programmer Logano plus GB312 – 6 720 806 273 (2013/01)
  • Page 71 Spare parts E co A ut A ut 6 720 806 275-80.1T Fig. 75 Heat insulation and programmer Logano plus GB312 – 6 720 806 273 (2013/01)
  • Page 72 Notice: if required order set of filter tubes NE 0.1 V2 Set of filter tubes NE 0.1 V2 (inserted) 63038062 Inlet/outlet connection NE 0.1 63015904 Hose 19x3.5x1000mm (condensate inlet) (not illustrated) 7115124 Table 27 Neutralizer Logano plus GB312 – 6 720 806 273 (2013/01)
  • Page 73 Spare parts 6 720 806 275-81.1T Fig. 76 Neutralizer Logano plus GB312 – 6 720 806 273 (2013/01)
  • Page 74 Fan unit VM312-160 US EG 7747016631 Fan unit VM312-200 US EG 7747016632 Fan unit VM312-240 US EG 7747016633 Fan unit VM312-280 US EG 7747016634 Table 28 Burner variants, data plate VM312 US Logano plus GB312 – 6 720 806 273 (2013/01)
  • Page 75 Spare parts Output Leistung Ser.-Nr. 63038106-00-5194-000042 0031511501 7747101921-03-Brennervarianten, Typenschild VM312 US Fig. 77 Burner variants, data plate VM312 US Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 76: Burner Rod Thermal Insulation Vm312 Us

    Available spare parts: Thermofix ceramic adhesive tube 115 g 2037312 Burner rod gasket VM312 63036119 Hex nut EN1661 M5 10 A3K serrated 5834400 Table 29 Burner Rod, thermal insulation VM312 US Logano plus GB312 – 6 720 806 273 (2013/01)
  • Page 77 Spare parts 6 720 806 275-83.1T Fig. 78 Burner Rod, thermal insulation VM312 US Logano plus GB312 – 6 720 806 273 (2013/01)
  • Page 78 Bracket for inspection window glass Inspection window glass, Tempax 5447620 30x30x3.3mm Inspection window seal DIN6921 M8x12 (12x) hexagon-head bolt 63036122 Burner bracket Burner bracket seal VM312-12 mm 63046223 Table 30 Manifold VM312 US Logano plus GB312 – 6 720 806 273 (2013/01)
  • Page 79 Spare parts 6 720 806 275-84.1T Fig. 79 Manifold VM312 US Logano plus GB312 – 6 720 806 273 (2013/01)
  • Page 80 Screw DIN7500CE M5x12 CombiTorx 63010217 Fan ebm G1G170-AB 120V60Hz 7747016669 Available part: Hexagon bolt DIN6921 M8x12 63036122 Burner bracket seal VM312-12 mm 63046223 Burner bracket Table 31 Igniter system, fan VM312 US Logano plus GB312 – 6 720 806 273 (2013/01)
  • Page 81 Spare parts 6 720 806 275-85.1T Fig. 80 Igniter system, fan VM312 US Logano plus GB312 – 6 720 806 273 (2013/01)
  • Page 82 Tester lead set VM312 US 7747016670 Comprising: Compensation lead VM312 US Union, Honeywell 5/4 Gas orifice D17 SW24 VM312 EG 7747026085 Venturi gasket VM312 63040179 Table 32 Air inlet, venturi VM312 US Logano plus GB312 – 6 720 806 273 (2013/01)
  • Page 83 Spare parts 6 720 806 275-86.1T Fig. 81 Air inlet, venturi VM312 US Logano plus GB312 – 6 720 806 273 (2013/01)
  • Page 84 O-ring 52.39 x 3.53 63036065 Ball valve DN25 RUBS92F41 1" 7747016685 Ball valve DN32 RUB S92G41 11/4" 7747016688 SAFe Pressure switch 7747021498 Table 33 Gas valve VR4730, gas connector pipe VM312 US Logano plus GB312 – 6 720 806 273 (2013/01)
  • Page 85 Spare parts 6 720 806 275-87.1T Fig. 82 Gas valve VR4730, gas connector pipe VM312 US Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 86: Safe 40 With Connecting Cable Vm312 Us

    Connecting cable, supply/return temperature 63035355 sensor Connecting cable with grommet, boiler 63039214 temperature sensor/SAFe BE Data cable, SAFe/MC10 63034190 Connecting cable, MV1 burner UL 7747016588 Table 34 Safe 40 with connecting cable VM312 US Logano plus GB312 – 6 720 806 273 (2013/01)
  • Page 87 Spare parts 6 720 806 275-88.1T Fig. 83 Safe 40 with connecting cable VM312 US Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 88: Circuit Diagram, Internal Boiler Wiring

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

  • Page 89: Examples Of Installations

    14.1 Boiler, low-loss header, AM10 7 747 010 720-192.2T Fig. 85 Example of installation: Logano plus GB312, low-loss header, AM10. Schematic diagram, not necessarily representative of complete system. Outdoor Sensor Flow temperature sensor DHW temperature sensor Expansion vessel PH (1&2) System pump...

  • Page 90: Boiler, Low-Loss Header, Logamatic 4000

    Examples of Installations 14.2 Boiler, low-loss header, Logamatic 4000 7 747 010 720 193.2T Fig. 86 Example of installation: Logano plus GB312, low-loss header, Logamatic 4000. Schematic diagram, not necessarily representative of complete system. Outdoor Sensor Low Loss Header Sensor...

  • Page 91: Boilers , Low-Loss Header, Logamatic 4000 With Fm456 Module

    Tank primary pump Check valve Balancing Valve Three way Mixing Valve and Actuator PH = Differential pressure regulated pumps The low-loss header (WH) should be installed as close as possible to the boiler. Logano plus GB312 – 6 720 806 273 (2013/01)

  • Page 92: List Of Keywords

    ..........Providing the fuel supply ..........RC35 user interface ............. Recycling ..............Safety ..........Safety considerations ........Servicing and maintenance logs ..........Three-way diverter valve ............. Wall clearances ............Wet cleaning Logano plus GB312 – 6 720 806 273 (2013/01)
  • Page 93 Notes Logano plus GB312 – 6 720 806 273 (2013/01)
  • Page 94 Notes Logano plus GB312 – 6 720 806 273 (2013/01)
  • Page 95 Notes Logano plus GB312 – 6 720 806 273 (2013/01)

Table of Contents