Buderus Logano G125 BE Installation And Service Instructions Manual Download Page 2

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Table of Contents

Logano G125 BE - Specifications subject to change without notice.

Safety Considerations and Symbol Descriptions

. . . . . . . . . . . . . . . . . . . 4

1.1

Regarding this Manual

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.2

Guideline of Notices

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.3

Observe the following Symbols

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.3.1 Installation Guidelines

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.3.2 Boiler Room Guidelines

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.4

Tools, Materials and Accessories

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.5

Disposal

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Product Description

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.1

Product Applications

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.2

Product Description

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Technical Information

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.1

Technical Data less Burner

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.2

Operating Conditions

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.2.1 General Operating Requirements

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Packaging and Components

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Moving the Boiler

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

5.1

Reducing Boiler Weight for Transportation

. . . . . . . . . . . . . . . . . . . . . . . . . . . 13

5.2

Lifting and Carrying the Boiler

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5.3

Moving the Boiler with the Boiler Cart

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Placing the Boiler

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

6.1

Clearances

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

6.2

Reversing the Burner Door Swing

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

6.3

Installation of boiler Feet (Components of B-Kit)

. . . . . . . . . . . . . . . . . . . . . . . 17

6.4

Placement of the Boiler

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Boiler Installation

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

7.1

Installation of Venting Systems

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

7.1.1 Vertical Venting Systems

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

7.1.2 Horizontal Venting

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

7.2

Installation of Combustion Air Supply System

. . . . . . . . . . . . . . . . . . . . . . . . . 28

7.3

Installation of Water Connections

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

7.3.1 B-Kit Installation

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

7.3.2 Installation of Boiler Drain (B-Kit Component)

. . . . . . . . . . . . . . . . . . . . . . . . . . 32

7.3.3 Installation of System Components

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

7.4

Filling and Checking for Water Leaks

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

7.5

Installation of Oil Line

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

7.6

Electrical Connections

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

7.6.1 Installation of Aquasmart

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

7.6.2 Control System Installation

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

7.6.5 Strain Relief Installation

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

7.6.6 Top Rear Panel Installation

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Summary of Contents for Logano G125 BE

Page 1: ...Service Instructions Low Emissions and High Efficiency Oil Boiler C Logano G125 BE US CA 6 720 804 880 2012 10 EN US For trained and certified installers Read carefully prior to installation maintena...

Page 2: ...2 Lifting and Carrying the Boiler 14 5 3 Moving the Boiler with the Boiler Cart 14 6 Placing the Boiler 15 6 1 Clearances 15 6 2 Reversing the Burner Door Swing 16 6 3 Installation of boiler Feet Com...

Page 3: ...ocking Plate 44 8 9 Testing of the Manual Reset High Limit STB of Logamatic controls 44 8 10 Installation of Front Burner Cover 45 8 11 Detailed Start up Procedure 46 9 Taking the Boiler Out of Operat...

Page 4: ...s regarding placement combustion air and venting and chimney system must be followed Follow applicable electrical code requirements Follow the local code and standards regarding safe boiler operation...

Page 5: ...d qualifica tion and applicable certification z Prior to opening the control shut down the power supply and prevent from accidental reactivation z Observe all applicable installation guidelines CAUTIO...

Page 6: ...2 Product Description The G125 BE is a oil fired low temperature boiler with boiler water temperature regulation The boiler consists of Optional Logamatic control Boiler jacket Boiler block with insu...

Page 7: ...3 4 5 Heating Capacity Gross Output MBtu hr 72 96 116 Net IBR MBtu hr 63 83 101 Boiler water content Gal 8 7 10 8 12 9 Fireside volume cu ft 1 20 1 75 2 21 Oil firing rate GPH 60 80 1 0 Fireside pres...

Page 8: ...44 Boiler block length LK 21 1 8 25 3 4 30 1 2 Combustion chanber length 16 20 1 2 25 1 4 Firebox diameter 10 5 8 Burner door thickness 3 1 2 Distance between boiler feet FL 11 3 8 16 1 8 20 7 8 Dry...

Page 9: ...down for at least 3 hours Necessary Necessary for Systems with large water content 115 gal 100 000 Btu hr 130 F Firing with modulating burn ers 130 F Table 3 General Operating Requirements 1 A heating...

Page 10: ...hanical means during boiler operation such as Bathroom exhaust fans Dryer Air conditioning equipment Animals The boiler room and especially the air inlet openings for combustion air must be kept free...

Page 11: ...rotection Group all equipment per local code Table 7 Power supply Operating Conditions Comments Detailed Information Operating pressure over pres sure 12 58 psi Maximum pressure is 30 psi based on sup...

Page 12: ...d on boiler block Buderus oil burner mounted on cus tomized burner door B Kit Components Supply manifold 1 NPT 30 psi relief valve boiler drain Pressure temperature gauge 1 NPT R1 conversion nipple pa...

Page 13: ...le from burner control before removing the burner door z Open burner door by removing the two burner door bolts z Lift burner door from hinges CAUTION SYSTEM DAMAGE due to bumps z Protect the boiler f...

Page 14: ...NOTICE The boiler is secured to the pallet with two bolts z Remove the bolts from pallet before lifting the boiler CAUTION BODILY DANGER due to carrying of heavy loads z Lift and carry the boiler wit...

Page 15: ...STEM DAMAGE due to freezing temperatures z Place the boiler in a frost free room Fig 7 Clearance dimensions for G125 boilers Distance A Recommended 51 1 8 minimum 39 3 8 B Recommended 27 1 2 minimum 1...

Page 16: ...s from the burner door by remov ing the hex head bolts z Locate and secure with hex head bolts these eyelets to the left side of the burner door z Hang the burner door on the hinges z Check to make su...

Page 17: ...od un der one side z Screw in the boiler feet 1 4 3 8 z Level the boiler 6 4 Placement of the Boiler z Bring the boiler to its final location z Put a level on the boiler and adjust boiler feet to leve...

Page 18: ...on and Fields FT 4 concentric exhaust intake terminations are ap proved with zero clearance to combus tible surfaces WARNING DANGER TO LIFE from toxic flue gases z Never connect more than one appli an...

Page 19: ...is factory prepared for connecting 4 rigid pipe ducted directly to the increaser at the rear of the boiler For further directions Chapter 7 2 page 28 Except for direct venting and provided ample combu...

Page 20: ...r z Follow damper manufacturer s instructions as to placement z Adjust draft for negative 0 02 0 04 W C Fig 13 5 Chimney liner installation 1 5 Chimney liner 2 Barometric damper 3 Horizontal air conne...

Page 21: ...1 Roof Penetration 2 Fire stop 3 All Fuel or L vent flue pipe 4 Barometric Damper 5 Clean out 6 Horizontal air connection for combustion air optional see 7 2 1 3 2 4 5 6 Venting system 5 Vertical Vent...

Page 22: ...instructions Chapter 7 1 2 6 Installation of Insulated Flexible Oil Vent page 26 Option 2 Standard 26 gauge galvanized 4 vent pipe Main tain 18 clearance to combustibles with galvanized vent pipe Cha...

Page 23: ...7 The exhaust terminal shall never be located less than 3 ft from inside building corners and never less than 2 ft from outside corners 8 The exhaust terminal shall be located at least 3 ft above any...

Page 24: ...inside wall tighten the gear clamp and secure the inner plate to the wall z For Aerocowl AT 4 installations in Canada less than 7 ft above ground install a cage screen over the ter mination to prevent...

Page 25: ...ent to prevent leakage of flue gases into the building z The venting system shall never be pierced under any circumstances after initial installation Combustion mea surements shall be taken at the exh...

Page 26: ...apter evenly over the exterior of the vent pipe Turn the adapter until the vent pipe interior seats evenly against the expanded teflon gasket of the end connector z Secure adapters to the vent pipe wi...

Page 27: ...the wall termination has to be installed Fol low also local codes NOTICE Once the entire venting system is in stalled make sure all joints are secure as well as Chapter 7 1 2 4 Sealing of the Vent Pip...

Page 28: ...ar swim ming pools dry cleaning operations or hair salons Buderus strongly recommends using fresh air ducted directly from the out side to the boiler WARNING DANGER OF FIRE from flammable material and...

Page 29: ...ng z Make an opening in the outside wall for wall termina tion z Use 4 rigid galvanized pipe or 4 flexible metal pipe z The maximum length of the fresh air piping must nev er exceed 100 ft Reduce by 1...

Page 30: ...ds The exhaust terminal shall be at least 1 ft above grade and snow line and where it is not susceptible to blockage from debris leaves or falling snow or ice An outside air intake riser is permitted...

Page 31: ...tion Fig 23 z Install 90 elbow relief valve and pressure tempera ture gauge CAUTION SYSTEM DAMAGE due to leaking connections z Install the piping connections to the boiler without having undue stress...

Page 32: ...installa tion of near boiler components Additional installation samples are found in Chapter 12 page 57 Fig 24 Boiler Drain installation EL RK NOTICE Install a fill connection in the supply piping to...

Page 33: ...6 Pressure and temperature gauge CAUTION SYSTEM DAMAGE Be careful not to expose the system to ex cessive test pressures during the hydro static test as it can damage pressure control and safety compon...

Page 34: ...s into the side panel of the jacket panel conforming to the Tigerloop mounting bracket z Secure mounting bracket to boiler side panel z For a 3 8 oil line install a 3 8 flare x 3 8 NPT adapt er in the...

Page 35: ...ol z If a Beckett AquaSmart is being installed the factory fit ted immersion well must be replaced by the immersion well supplied with the control z Install the Aquasmart according to manufacturers in...

Page 36: ...ont tabs of control panel into the oval shaped openings z Slide the control panel forward z Push forward on plastic snap tabs in rear of control to engage them into the top panes square knock outs z R...

Page 37: ...fully into the well and se cure tubing with furnished metal holding clip Fig 32 Changing out the well 1 Logamatic well 2 Supplied well 1 2 NOTICE When installing a Logamatic control you must replace t...

Page 38: ...ble ties z Install cable clips with the tab facing up into the rear of the Logamatic step 1 z Slide cable clips down and lock them in step 2 z Push cable clips in step 3 z Push hinging tab down to sec...

Page 39: ...until the desired pres sure is achieved at least 12 15 psi but no more than 30 psi Actual settings are dependent on the pressure rating of the relief valve CAUTION BOILER DAMAGE from excessive dust a...

Page 40: ...lates are in hor izontal position before the initial start up process z Remove burner cable from burner at disconnect point z Open the burner door by removing the two burner door bolts z Pull the baff...

Page 41: ...he burner comes on when the control is switched to a heat demand occurs or man ual mode Follow the instructions in the Service Man ual of the control z Select manual operation z Set the desired adjust...

Page 42: ...ation 8 8 Adjusting Stack Temperatures NOTICE Improper burner adjustments can lead to improper combustion and sooting of the boiler Burner lock outs can also occur as a result z Always check the combu...

Page 43: ...ge 13 8 8 1 Adjusting Removing Flue Baffles Adjust or remove the flue baffles always in pairs z Remove burner cable from burner connector z For sealed combustion operation remove hose from burner inta...

Page 44: ...r is described in Chapter 8 8 1 z Remove blocking plate by removing set screw from the front section z Measure the stack temperature again Chapter 8 8 1 8 9 Testing of the Manual Reset High Limit STB...

Page 45: ...e 45 8 10 Installation of Front Burner Cover z Hang burner cover into the hooks of the boiler jacket z Secure burner cover with s screws into the side pan els Fig 47 Installation of burner cover WARNI...

Page 46: ...tank manufacturer in structions 39 __________ psi 3 Check combustion air and venting system 4 Check position of flue baffles 40 5 Turn on control Refer to control Service Manual 41 6 Turn on burner R...

Page 47: ...se off fuel supply with oil shut off 9 2 Emergency Shut down Explain to customer and homeowner what to do in case of emergency such as fire z Safety first Never put your life or your health at risk z...

Page 48: ...vices Chapter 10 6 page 52 10 2 Prepare Boiler for Cleaning z Shut down the heating system Chapter 9 1 page 47 z Remove burner cover from boiler Chapter 5 1 page 13 z Remove burner cable from burner d...

Page 49: ...sh Re move the loosened debris from combustion cham ber flue passages and breaching connection areas z Insert the flue baffles into the boiler in their original position z Check burner door sealing ro...

Page 50: ...ge 49 z Close burner door and turn on heating system z Heat the boiler to a minimum temperature of 160 F z Turn the system off z Brush out heating surfaces 10 3 3 Inspecting the combustion air hose se...

Page 51: ...discharge of the relief valve z Lift up on the relief valve The relief valve must open and discharge water If the valve does not discharge replace the valve and re check If the defective valve is not...

Page 52: ...isual performance test on system 3 Check fuel and water components for Leaks during operation Hydrostatic water test Visual corrosion Exterior system changes 4 Check flue passages for soot shut off sy...

Page 53: ...e ______ Date ______ Date ______ Date ______ Date ______ Date ______ 1 2 3 4 5 6 7 8 9 10 Sign Date Sign Date Sign Date Sign Date Sign Date Sign Date Sign Date NOTICE When you find conditions during t...

Page 54: ...s 49 3 Clean flue passages and the combustion chamber Insert the flue baffles into the boiler in their original position 49 4 Check burner door sealing rope Replace damaged or hardened sealing rope Cl...

Page 55: ...G125 BE Specifications subject to change without notice 55 Date ______ Date ______ Date ______ Date ______ Date ______ Date ______ Date ______ 1 2 3 4 5 6 7 Sign Date Sign Date Sign Date Sign Date Si...

Page 56: ...ual Correct burner lock outs z Remove burner cover when the burner is so equipped Press the burner reset button once Fig 55 Reseting burner lock outs boiler with built in burner 1 Burner reset button...

Page 57: ...hout notice 57 12 Piping Diagrams Explanation of the abbreviations KR Flow Check SH 2 way motorized valve MAG Expansion tank WH Boiler bypass PH Heating pump SV Relief valve Air elimination PW DHW cha...

Page 58: ...rams 12 Logano G125 BE Specifications subject to change without notice 58 Fig 57 Zoning with pumps Fig 58 Zoning with zone valves and built in bypass for larger water volume systems KR SV PH MAG PH TH...

Page 59: ...iagrams 12 Logano G125 BE Specifications subject to change without notice 59 Fig 59 Multiple zones with DHW high temperature and low temperature circuits with a motorized 3 way valve KR PH KR PS SV MA...

Page 60: ...65 5 6 05555070 53 Distance sleeve R3 8 x39 x x x 54 Hex head nut ISO4032 M10 8 A3K x x x 55 Washer DIN125 A10 5 A3K x x x 57 Reducing Nipple 63027607 60 Immersion well Pmw 3See 4 1 2 US 00472887 70 T...

Page 61: ...ver components 300 Gasket 30x30x3 63014382 310 Sight glass Tempax 30x30x3 3mm 05447620 320 Sight glass cover plate x x x 330 Hex head screw ISO4017 M6x12 8 8 A3K x x x 340 Pressure measuring port M6 S...

Page 62: ...1 1 4 NPT elbow 1 90 degree 3 4 NPT elbow 1 Conversion nipple R11 4 11 4NPTx75 1 Boiler drain valve 3 4 1 Relief valve 3 4Mx3 4F 30PSI 1 Pressure Temperature gauge 1 4NPT 1 Screw Set B Kit G115 US 4...

Page 63: ...60 Boiler block and burner door 7747101419 01 Kesselblock G125 BE US 21 23 24 133 133 180 180 52 53 22 21 370 380 390 280 270 260 250 350 300 290 310 330 340 320 350 400 360 22 52 55 54 80 142 141 140...

Page 64: ...5 A3T x x x 100 Boiler block insulation G125 05670040 100 Boiler block insulation G125 05670045 100 Boiler block insulation G125 05670046 110 Holding clips for boiler block insulation 00476378 120 Top...

Page 65: ...115 G125 G134 63031847 Components 17 Screw St3 9x9 5 A3T05180842 3 Sheet metal screw C St3 9x13 A3T 1 Screw DIN7985 M6x16 4 8 A3T 2 Clip 4 Hex head screw ISO4017 M8x12 8 8 1 Hex head nut DIN555 M8 5 4...

Page 66: ...t notice 66 Fig 61 Boiler jacket 0 1 2 3 4 6 5 7747101420 01 Verkleidung G125 BE US 145 230 220 230 140 182 181 180 190 210 200 201 40 70 85 80 81 82 80 81 82 40 70 40 70 60 50 85 20 100 101 102 150 1...

Page 67: ...Burner Wiring Examples 14 Logano G125 BE Specifications subject to change without notice 67 14 Burner Wiring Examples Fig 62 Wiring diagram 1...

Page 68: ...Burner Wiring Examples 14 Logano G125 BE Specifications subject to change without notice 68 Fig 63 Wiring diagram 2...

Page 69: ...irt collection system 31 Disposal 5 E Electrical diagrams 67 68 Electrical power supply 38 G Galvanized Vent Pipe 27 H Heating circuits 59 Heating system emergency switch 47 Horizontal Venting 22 I In...

Page 70: ...and temperature gauge 39 Pressure temperature gauge 12 31 51 pressure temperature gauge 31 R Relief valve 31 32 33 Reseting burner error 56 S Shut off valve 41 Spare Parts 60 Spare Parts list 60 Start...

Page 71: ...Notes Logano G125 BE Specifications subject to change without notice 71...

Page 72: ...53 Tel 603 552 1100 Fax 603 584 1681 www buderus net Products manufactured by BBT Thermotechnik GmbH D 35573 Wetzlar www buderus de BBT North America Corporation reserves the right to make changes wit...

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Buderus Logano G125 BE, Installation And Service Instructions Manual

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