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Product description

Logano GB125 BE US/CA - Technical specifications are subject to change without prior notice.

2.6

Dimensions and specifications

2.6.1

Logano GB125 BE dimensions

Fig. 3

Connections and dimensions (measurements in inches)

= Boiler supply

= Boiler return

= Boiler drain (connection for drain valve)

Dimensions and connections:

Boiler model

Unit

GB125/22 BE

GB125/30 BE

GB125/35 BE

Boiler sections

Rated heat output (gross output)
131/86 °F

MBtu/hr

102

124

Rated heat output (net IBR rating)
131/86 °F

MBtu/hr

109

Rated heat output (gross output)
176/140 °F

MBtu/hr

100

121

Rated heat output (net IBR rating)
176/140 °F

MBtu/hr

105

Burner input

MBtu/hr

108

131

AFUE

91.2

91.1

91.0

Flue gas temperature 176/140 °F

°F

176

192

Boiler water content

gal

8.7

11.8

Gas volume of combustion chamber and heat
exchanger

cu.ft.

1.5

2.0

Oil firing rate

gph

0.60

0.75

0.95

Flue gas back-pressure

in. W.C

0.08" - 0.14" W.C.

Heat exchanger water pressure loss
(DeltaT = 18 °F)

ft. of

head

1.8'

2.0'

2.7'

Maximum supply temperature

1) Safety manual reset high limit (safety temperature limiter, STB)

Maximum permitted supply temperature = Safety limit (STB) – 32

°F

Example: Safety limit (STB) = 212

°F

, maximum possible flow temperature = 212 - 32 = 180 °F

The safety limit must meet the national regulations of the country concerned.

°F

212

Maximum operating pressure

psi

Maximum time constant of thermostat and
high limit safety cut-out (STB)

Tab. 2

Specifications

Содержание Logano GB125/22 BE

Страница 1: ...ation and maintenance manual must be followed precisely Contact a trained and certified service company or service provider if support or additional information is required CAUTION The operating manua...

Страница 2: ...components 25 5 5 Filling heating system and checking for water leaks 26 5 6 Connecting the fuel supply 27 5 7 Condensate trap 28 5 8 Electrical connections 29 5 8 1 Logamatic control installation 29...

Страница 3: ...m Dangers posed by explosive and combustible materials V Do not use or store combustible materials paper lace curtains clothing thinners paints etc near the boiler V Maintain a clearance of 16 inches...

Страница 4: ...by the use of parts not supplied by Buderus is not covered by the Buderus warranty Instructing the customer V Explain to the customer how the boiler works and how to operate it V Inform the customer t...

Страница 5: ...the safety systems for the water heating system 1 4 1 Other important information Only operate the boiler with the concentric air venting system specifically designed and approved for it Follow the lo...

Страница 6: ...with heating systems and DHW installa tions This boiler must be installed with one of the Buderus sup plied concentric heating systems Concentric direct vent side wall kit Concentric vertical kit Con...

Страница 7: ...n Burner Heat exchanger system The controls monitor and control all electrical boiler com ponents The boiler jacket prevents heat loss and acts as a noise insulator The boiler heat exchanger transfers...

Страница 8: ...ng and DHW systems plus metric wrenches and metric Allen wrenches The following may also prove useful Hand truck with securing strap or Buderus boiler cart Wood battens Cleaning brushes and or chemica...

Страница 9: ...Burner hood factory fitted to boiler heat exchanger Heat exchanger system Oil burner with factory fit ted burner door Air supply hose factory fit ted Condensate trap 1 1 bag1 1 Under the burner hood...

Страница 10: ...ng 176 140 F MBtu hr 65 87 105 Burner input MBtu hr 81 108 131 AFUE 91 2 91 1 91 0 Flue gas temperature 176 140 F F 176 176 192 Boiler water content gal 8 7 11 8 11 8 Gas volume of combustion chamber...

Страница 11: ...ondi tions may cause irreversible damage to indi vidual components of the boiler as a whole V The information on the rating plate is defin itive Operating conditions Min boiler water temperature Opera...

Страница 12: ...lations A minimum clearance of 16 is required Never store flammable materials or liq uids in the vicinity of the boiler Flooding In case of an acute risk of flooding disconnect the boiler in time from...

Страница 13: ...subject to change without prior notice 13 2 8 Disposal V Dispose of boiler packaging in an environmentally responsible manner V All heating system components that have to be replaced should be dispose...

Страница 14: ...oving the burner door unplug the burner plug from the burner control unit Fig 4 Removing burner cover V Unscrew two hex head bolts at the sides V Open burner door V Lift the burner door off its hinges...

Страница 15: ...cation Fig 7 Moving the boiler with a boiler hand truck The boiler is secured to the pallet by 2 screws for transportation purposes Warning Risk of injury from carrying heavy loads V Always lift and m...

Страница 16: ...ution Risk of system damage due to freezing V Install the heating system in a frost free room Dimen sion Wall clearance A Recommended 40 minimum 27 B Recommended 27 minimum 16 C Recommended 28 minimum...

Страница 17: ...chments 1 Hinge bolts 2 Hinges V Unscrew the hinge barrel bolts 1 and remove the hinge barrels 2 V Fix the hinge barrels 2 on the left hand side of the burner door 3 using the hinge barrel bolts V Han...

Страница 18: ...3 page 15 or place a wooden batten underneath to jack it up V Screw in adjustable feet 2 1 8 V Gently set the boiler down Fig 11 Fitting the adjustable feet burner not shown 1 Angle bracket 2 Adjustab...

Страница 19: ...ected to a wood stove V Follow the instructions of the flue pipe manufacturer The boiler must be installed by a trained and certified installer in accordance with all re quirements of NFPA 31 Installa...

Страница 20: ...ect to change without prior notice 20 5 2 Test ports Flue gas readings and combustion air temperature read ings are taken exclusively at the dedicated testing ports Follow the directions in the instru...

Страница 21: ...rches enclosed spaces or lower parts of the building which could prevent unre stricted outflow of the flue gases 6 The termination must never be located within 3 ft of inside corners of buildings and...

Страница 22: ...air and venting pipe system DO Concentric air supply and flue pipe system exiting verti cally through roof Vertical concentric combustion air and venting pipe system GA K Flue system comprising back...

Страница 23: ...for systems with one elbow Every additional elbow accessory reduces the maximum vent length by 3 ft 1 m Maximum length of flue pipe feet m Plastic flue system DN 80 125 Boiler size HT K direct vent D...

Страница 24: ...ll 90 elbow 1 1 4 on conversion nipple V Install supply manifold into elbow and orient in desired direction Fig 16 V Install 90 elbow relief valve and pressure temperature gauge Fig 16 B Kit Installat...

Страница 25: ...Pressure relief valve 2 Pressure temperature gauge 3 Ball valve 4 Air eliminator in main supply 5 Heating pump 6 Flow check valve back flow preventer 7 Expansion tank 8 Automatic feed valve 9 Flow ch...

Страница 26: ...ith tap water Fig 19 Pressure temperature gauge Caution Risk of system damage due to ex cess pressure when testing for leaks Pressure control and safety equipment may be damaged by excessive pressure...

Страница 27: ...ing direction on burner door and reverse door swing if desired V Drill 4 holes in the jacket panel using the Tigerloop mounting bracket Fig 21 7 as a template V Secure mounting bracket to boiler side...

Страница 28: ...d filling the trap and neutralizer V Install the nut on the boiler condensate drain Fig 22 4 V Install the o ring on the boiler condensate drain pipe V Merge the siphon with the boiler condensate drai...

Страница 29: ...e tabs 2 of the control unit in the slots 3 V Slide the control forward towards the burner door V Snap the flexible catches 1 into place in the knock outs provided 4 Fig 24 Fitting the controls 1 Flex...

Страница 30: ...top panel 1 to the sensor well 3 V Roll up surplus capillary tubes and sensor lead and lay flat on the thermal insulation V Feed the burner cable 4 through the cable entry in the front boiler top pan...

Страница 31: ...the wiring diagram Chapter 12 page 62 V Remove blind connector from Abgas berwachung Fig 28 V Insert flue gas safety limiter STB connectors in socket labeled Abgas berwachung as shown in Fig 29 V Con...

Страница 32: ...r with the cable from the top into the slots in the frame step 1 V Slide the cable ties downward step 2 V Push against the ties step 3 V Flip the toggle up step 4 Fig 30 Securing cables with cable tie...

Страница 33: ...i maximum 30 psi posi tive pressure depending on safety valve fitted V Bleed the heating system while filling Fig 32 Pressure temperature gauge for showing oper ating pressure and supply temperature W...

Страница 34: ...cure with the two hex head bolts tighten to approx 90 inch lbs Tighten the hex bolts evenly to properly seal the burner door V Reactivate the controls Fig 33 Opening the burner door 1 Flue gas baffles...

Страница 35: ...ew weeks of operation Required instruments CO2 measuring equipment Draft measuring equipment Oil pressure gauge Stack thermometer Smoke tester V Check the combustion chamber pressure at the pres sure...

Страница 36: ...enable a boiler reset and re starting the fault must be removed and the system must have fallen back below the limit V Check the function of the manual reset high limit programming unit maintenance in...

Страница 37: ...Adjust the expansion vessel pressure expansion vessel doc umentation 33 ____________ psi 4 Checking combustion air supply and flue system 5 Checking position of heat exchanger baffles 34 6 Documentati...

Страница 38: ...er put yourself at risk of fatal injury Your own safety must always take the highest priority V Turn off the main isolating fuel valve V Disconnect the heating system from the electrical power supply...

Страница 39: ...carried out by a trained and certified service technician If parts are replaced only Buderus approved components may be used A service must be carried out once a year The results of the serv ices mus...

Страница 40: ...gas flues by turning the round cleaning brush V Clean the combustion chamber with a flat brush Remove the debris from the combustion chamber the hot gas flues and the flue connection V Refit the heat...

Страница 41: ...soot or scale Follow the same sequence as described in Chapter 8 2 page 39 and Chapter 8 3 page 40 V Cover the programming unit with foil to prevent spray getting into the programming unit V Spray cle...

Страница 42: ...at exchanger system 1 Thermal insulation 2 Rear boiler cover V Undo the quick release catches 1 for the cleaning access cover 2 V Remove the cleaning access cover 2 and gasket from the heat exchanger...

Страница 43: ...fitting the cleaning access cover take care to ensure it is seated correctly and seals properly Caution Risk of system damage due to use of incorrect brushes V Use only the cleaning brushes suitable f...

Страница 44: ...e for cleaning the neutralizer unit is described in a separate instruction manual V Disconnect the condensate pipes from the trap V Remove deposits in the trap and refill with water V Refit the conden...

Страница 45: ...V Check system pressure V If the pressure gauge shows less than 15 psi the oper ating pressure is too low Add water to the system Fig 46 Pressure temperature gauge for showing oper ating pressure and...

Страница 46: ...e fails to release excess pressure it must be replaced because otherwise system components may be damaged by excessive operating pressure 8 9 Concentric combustion air supply and flue pipe V Check con...

Страница 47: ...own the system for this step 38 5 Check condensation heat exchanger for Dirt contamination Damaged or hardened gaskets 42 6 Check burner burner documentation 7 Check combustion air supply and flue pip...

Страница 48: ...Date ______ Date ______ 1 2 3 4 5 6 7 8 9 10 11 Company stamp signa ture Company stamp signa ture Company stamp signa ture Company stamp signa ture Company stamp signa ture Company stamp signa ture Co...

Страница 49: ...system replace gaskets if necessary 40 6 Combustion air supply and flue system Clean air supply system In the case of concentric combustion air supply and flue pipe clean the condensate outlet 40 7 S...

Страница 50: ...ss reset button 1 on burner Fig 47 Resetting the burner 1 Reset button Caution Risk of system damage from pressing the reset button too frequently Too many resets can damage the burner s ig nition tra...

Страница 51: ...ple circuits with zone valves 1 Baseboard Fig 49 Multiple heating circuits with heating pumps 1 Baseboard KR Return valve or check valve SH Heating circuit adjuster mixing valve MAG Expansion tank SV...

Страница 52: ...ange without prior notice 52 Fig 50 Multiple heating circuits with bypass for heating systems with large water capacity 1 Radiator 2 Boiler bypass Fig 51 Multiple heating circuits with heating pumps a...

Страница 53: ...05317712 52 Stud bolt M10x205 7747007599 53 Spacer sleeve R3 8 x39 x 54 Hexagon nut ISO4032 M10 8 A3K x 55 Washer DIN125 A10 5 A3K x 57 Reducer G1 xG3 4 the reducer should always be fitted with a new...

Страница 54: ...S 63031288 Contents 1 countersunk bolt M8x16 Ms 2 spacer sleeves R3 8 x39 2 hexagon nuts ISO4032 M10 8 A3K 8 washers DIN125 A10 5 A3K 4 washers DIN126 9 4 hex head bolts ISO4017 M8x25 8 8 4 hexagon nu...

Страница 55: ...11 Spare parts Logano GB125 BE US CA Technical specifications are subject to change without prior notice 55 Fig 52 Boiler block and burner door...

Страница 56: ...lation pack of 10 7747016084 120 Front top panel assy GB125 63029948 130 Rear top panel assy GB125 3 section 63029950 131 Rear top panel assy GB125 4 section 63029951 140 Rear panel GB125 WT 18 22 774...

Страница 57: ...C St3 9x13 A3T 1 Dome head screw DIN7985 M6x16 4 8 A3T 2 push fit catches 4 hex head bolts ISO4017 M8x12 8 8 1 hexagon nut DIN555 M8 5 4 washers DIN126 9 4 washers DIN432 10 5 St A3E 4 hexagon nuts DI...

Страница 58: ...change without prior notice 58 Fig 53 Boiler jacket 0 1 2 3 4 6 5 A A 7747102255 ab RS Verkleidung GB125 US 130 120 90 90 210 230 260 250 260 90 95 145 270 110 85 80 70 70 240 181 70 40 40 20 10 16 4...

Страница 59: ...HK WT G1 G1 7747014892 140 Return pipe HK WT G1 G1 7747014892 140 Return pipe HK WT G1 G1 7747014892 145 Return pipe HK WT G1 1 4 7747014893 150 Return pipe RK WT G1 G1 7747014891 155 Return pipe RK W...

Страница 60: ...seal set O rings x 350 Trap fixing bracket GB125 7747012514 360 Pipe clip G125ECO GB125 7747007705 370 Thermal insulation GB125 WT 30 35 kW 7747012559 380 Thermal insulation GB125 WT 18 22 kW 7747012...

Страница 61: ...ect to change without prior notice 61 Fig 54 Heat exchanger WT 7747102256 ab RS W rmetauscher WT 350 360 370 380 150 155 30 40 80 330 340 200 160 170 160 170 140 145 160 160 160 335 210 95 335 100 110...

Страница 62: ...12 Wiring diagrams Logano GB125 BE US CA Technical specifications are subject to change without prior notice 62 12 Wiring diagrams Fig 55 Wiring diagram...

Страница 63: ...g system emergency stop switch 38 Heat exchanger baffles checking position of 34 Heat exchanger baffles removing 40 Heat exchanger heater flue cleaning 40 Heating circuits multiple 51 I Installation d...

Страница 64: ...S A Tel 603 552 1100 Fax 603 584 1681 www buderus net Products manufactured by BBT Thermotechnik GmbH D 35573 Wetzlar www buderus de Bosch Thermotechnology Corporation reserves the right to make chan...

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