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Electrical connections

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Installation instructions Logamax plus GB142-24/30/45/60 • version 10/2007

Buderus • http://www.buderus.net

We reserve the right to make any changes due to technical modifications!

EV terminal (external switching contact)

This terminal can be used for example for the safety switch
of floor heating. This protects the floor heating against too
high boiler water temperatures (external manual reset high
limit). The boiler is shut down when the external switching
contact is opened.

The normally closed contacts of a LWCO will shut down
burner operation but allow the pump to continue to operate
in case of a low water condition.

DWV

Terminal for connection of an external 3-way valve.

PK

Connector for the primary loop pump 120V 60Hz.

PS

Connector for the DHW tank pump 120V 60Hz.

PZ

Connector for the DHW recirculating pump 120V 60Hz.

Netz

Main power connector 120V 60Hz.

120-volt connections

CAUTION

Make sure that the power consumption of each
of the terminals 7 – 9 (see circuit diagram) does
not exceed 250 W or 5 Amp.

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Содержание Logamax plus GB142-24

Страница 1: ...er operator and make sure that he or she is familiar with all the necessary operating instructions NOTICE In the Commonwealth of Massachusetts this boiler must be installed by a licensed Plumber or Gas Fitter Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other boiler What to do if you smell gas Do not try to light any boiler Do not touch any elec...

Страница 2: ...tion start up and maintenance of the boiler with boiler capacities 24 30 45 and 60 kW These Installation Instructions are intended for profes sional installers who have the necessary training and experience for working on heating and gas systems Subject to technical changes Slight changes may be made to the illustrations process steps and technical data as a result of our policy of continuous impr...

Страница 3: ...drain 26 8 Electrical connections 27 8 1 External connection board connections 27 9 Start up procedure 30 9 1 Testing for gas leaks 31 9 2 Filling the boiler 31 9 3 Filling the condensate trap 32 9 4 Bleeding the gas supply valve 32 9 5 Checking the combustion air flue gas connection 32 9 6 Checking the orifices 33 9 7 Inlet gas pressure 33 9 8 Checking and adjusting the gas air ratio 34 9 9 Carry...

Страница 4: ...igns of corrosion 47 12 3 Internal leak testing 48 12 4 Measuring the ionization current 48 12 5 Measuring the inlet gas pressure 48 12 6 Checking and adjusting the gas air ratio 48 12 7 Carrying out a gas leak test in operating conditions 48 12 8 Measuring the carbon monoxide content CO 48 12 9 Carrying out a pressure test of the heating system 48 12 10 Checking the functioning and the safety of ...

Страница 5: ...specifically designed and approved for this type of boiler Please note that local permission for the flue system and the condensate water connection to the public sewer system may be required You must also observe the local building regulations stipulating the installation rules the local building regulations concerning the air intake and outlet systems and the chimney connection the regulations f...

Страница 6: ...B142 24 30 this is 11 GPM gal min 42 l min for the GB142 45 is 15 GPM 57 l min and for the GB142 60 is 20 GPM 76 l min 1 5 Tools materials and additional equipment For the installation and maintenance of the boiler you will need the standard tools for space heating gas and water fitting In addition a handtruck with a fastening belt is useful 1 6 Disposal Dispose of the boiler packaging in an envir...

Страница 7: ...alarm shall comply with NFPA 720 2005 Edition 2 A carbon Monoxide detector and alarm shall be located in the room that houses the boiler or equipment and shall a Be powered by in series on the same electrical circuit as the boiler or equipment b Have battery back up power c Meet ANSI UL 2034 Standards and comply with NFPA 720 2005 Edition d Have been approved and listed by a Nationally Recognized ...

Страница 8: ...an pos 14 Fan pos 15 Condensate trap pos 16 External Connection Board under the cover pos 17 Pressure sensor 1 2 3 9 11 13 14 9 16 15 5 8 1 4 10 12 13 14 2 3 5 4 6 7 9 11 9 8 10 12 16 15 17 7 6 Fig 2 Basic Controller Logamatic BC10 pos 1 Main switch pos 2 DHW temperature knob 1 pos 3 LED DHW status pos 4 Display pos 5 Space heating water temperature knob pos 6 LED Heating system status pos 7 Under...

Страница 9: ... Return Ø 1 0 1 Ø 25 4 mm Supply Ø 1 0 1 Ø 25 4 mm Wall bracket 1 One Ø 1 0 Ø 25 4 mm inside x 1 NPT threaded compression fitting is delivered enclosed with boiler packaging 4 100 mm 12 300 mm 20 500 mm 6 2 158 mm 0 25 6 mm 1 8 46 mm 18 7 475 mm 6 150 mm 2 2 55 mm 3 75 mm 3 75 mm 6 150 mm 1 2 30 mm 16 420 mm 7 5 190 mm 28 712 mm 4 7 119 mm 4 3 110 mm 13 2 335 mm 22 560 mm 3 75 mm 4 100 mm 6 150 mm...

Страница 10: ...y Ø 1 0 1 Ø 25 4 mm Wall bracket 1 One Ø 1 0 Ø 25 4 mm inside x 1 NPT threaded compression fitting is delivered enclosed 20 7 526 mm 1 2 30 mm 16 420 mm 7 5 190 mm 28 712 mm 4 7 119 mm 4 3 110 mm 13 2 335 mm 35 4 900 mm 9 7 246 mm 6 2 158 mm 0 25 6 mm 1 8 46 mm 18 7 475 mm 6 150 mm 4 100 mm 2 2 55 mm 3 75 mm 3 75 mm D E F G A B C 4 100 mm 12 300 mm 20 500 mm NOTICE Observe the lateral minimum dist...

Страница 11: ...l documents 1 including User s Instructions Installation Instructions wall mounting template Servicing Instructions 3 4 Compression fittings 2 5 AM10 with outdoor sensor 1 6 Flue gas adapter 1 7 Propane conversion kit 1 8 Boiler connection kit including the DHW sensor 1 9 GB142 Boiler manifold including low loss header pressure relief valve tridicator DHW connections Grundfoss 15 58 3 speed boiler...

Страница 12: ...ce clearances z Remove the transport safety clamps fig 6 DANGER Install the heating system in a frost free room Do not store any flammable materials or liquids in the immediate vicinity of the boiler Never use any chlorinated detergents or halogenated hydrocarbons e g in spraycans solvents and detergents paints adhesives Do not allow too much dust to collect on the boiler NOTICE To protect the con...

Страница 13: ... so that it is free from any strain A sediment trap must be provided upstream of the gas controls Fig 7 Removing the casing 1 2 2 2 2 3 Fig 8 Making the gas connection 1 DANGER Only carry out work on gas lines if you are licensed for such work Length of pipe feet Gas Volume Capacity ft3 hr 1 1 1 1 10 278 520 1 060 1 600 20 190 350 730 1 100 30 152 285 590 890 40 130 245 500 760 50 115 215 440 670 ...

Страница 14: ... to the Installation instructions of the hot water tank and fittings concerned Steel pipe diameter in inches Equivalent length for Pipe Fittings in feet Type of pipe fitting 90 Elbow Tee flow thru branch Gate valve Gas cocks Equivalent length in feet 2 1 4 1 0 5 1 25 1 2 6 5 2 0 6 1 60 1 3 5 6 9 0 8 2 15 1 4 0 8 0 0 9 2 50 Table 3 Equivalent length for pipe fittings in feet Fig 9 Pump manifold ins...

Страница 15: ... pos 6 secondary return GB142 GB142 GB142 FLUE GAS PT AIR INTAKE pump manifold 1 4 5 6 2 3 NOTICE The following illustrations are simplified concep tual illustrations only NOTICE If this boiler is installed in a closed water supply system with an external indirect DHW tank such as one having a backflow preventer in the cold water supply line means shall be provided to control thermal expansion Con...

Страница 16: ...zones zones Radiant FLUE GAS PT AIR INTAKE 9 1 2 4 5 6 3 7 8 WARNING No valve is to be placed between the relief valve and the tank Discharge of the relief valve must be conducted to a suitable place for disposal when relief occurs and no reducing coupling or other restriction may be installed in the discharge line Fig 12 Schematic representation of the boiler with the Hydronic set connected to an...

Страница 17: ...ustion or inside room air for combustion Insufficient ventilation of the boiler room can lead to high air temperatures This can result in boiler damage Make sure that intake and exhaust openings are sufficiently sized and no reduction or closure of openings takes place When the problem is not resolved do not operate the boiler Please note these restrictions and its dangers to the operator of the b...

Страница 18: ...s one commencing within 12 inches 305 mm from the top and one commencing within 12 inches 305 mm from the bottom of the enclosure The openings shall communicate directly or by ducts with the outdoors or spaces crawl or attic that freely communicate with the outdoors The minimum dimension of air openings shall be no less than 3 inches 75 mm 1 Where directly communicating with the outdoors each open...

Страница 19: ...ore installing the exhaust and air intake system it is necessary to remove the transport safety device and to install the flue gas adapter z Remove the transport safety device with the two screws see fig 13 z Screw on the flue gas adapter using six screws see fig 14 Fig 13 Removing the transport safety device NOTICE The transport safety device has been installed to prevent unwanted movement of the...

Страница 20: ...ontally from or 1 ft 305 mm above any door window or gravity air inlet into any building Vent must be at least 12 inches 305 mm above grade anticipated snow line or roof surface Canada 18 457 mm minimum see fig 16 Vent termination must be at least 7 ft 2 135 mm above a public walkway see fig 17 Vent must be 3 ft 915 mm above any forced air intake within 10 ft 3 050 mm see fig 17 Do not extend expo...

Страница 21: ... the certified vent system must be from a single system manufacturer and not intermixed with other system manufacturer s vent system parts Item Material United states Canada Vent or air pipe and fitting PVC schedule 40 ANSI ASTM D1785 CSA or BH Gas venting systems ULC S636 certified only PVC DWV ANSI ASTM D2665 CPVC schedule 40 ANSI ASTM F441 ABS DWV schedule 40 ANSI ASTM D2661 Pipe cement primer ...

Страница 22: ... 4 1 Exhaust terminal must be at least 3 ft 915 mm above forced air inlet within 10 ft 3050 mm 3 5 2135 mm 305 mm 1220 mm 1525 mm 1220 mm 915 mm 915 mm 305 mm 305 mm 1220 mm 1220 mm Fig 18 Vertical venting system sealed combustion INTAKE EXHAUST 10 0 MIN 250 mm 0 mm MIN 12 300 mm OVER MAXIMUM SNOW LEVEL OR 24 600 mm WHICHEVER IS GREATER 3 80 mm 3 80 mm 1 NOTICE Place pipe supports every 5 feet 152...

Страница 23: ... Fig 20 Vertical parallel venting system sealed combustion Situation 1 INTAKE EXHAUST 10 0 MIN 250 mm 0 mm MIN 12 300 mm OVER MAXIMUM SNOW LEVEL OR 24 600 mm WHICHEVER IS GREATER 3 80 mm 3 80 mm Fig 21 Horizontal venting system sealed combustion Situation 2 INTAKE EXHAUST 3 80 mm Fig 22 Vertical parallel venting system sealed combustion Situation 2 INTAKE EXHAUST 10 0 MIN 250 mm 0 mm MIN 12 300 mm...

Страница 24: ...00 mm minimum 12 300 mm minimum 12 300 mm minimum 12 300 mm minimum Fig 24 Vertical venting system room air only INTAKE EXHAUST 10 0 MIN 250 mm 0 mm MIN 12 300 mm OVER MAXIMUM SNOW LEVEL OR 24 600 mm WHICHEVER IS GREATER 3 80 mm Fig 25 Vertical exhaust and horizontal intake venting system sealed combustion INTAKE 3 80 mm EXHAUST 3 80 mm 10 0 MIN 250 mm 0 mm MIN 12 300 mm OVER MAXIMUM SNOW LEVEL OR...

Страница 25: ...5 elbow 3 x 3 ft 0 91 m 9 ft 2 73 m concentric vent kit 3 ft 0 91 m Total friction loss equivalent 12 ft 3 66 m Total venting length for this example is GB142 24 30 45 100 ft 30 48 m 12 ft 3 66 m 88 feet 26 82 m GB142 60 60 ft 18 29 m 12 ft 3 66 m 48 feet 14 63 m Fittings or Piping Equivalent feet m 45 degree elbow 3 0 91 90 degree elbow 5 1 52 plastic pipe per foot 1 0 30 concentric vent kit 3 0 ...

Страница 26: ...condensate outlet of the boiler is lower than the drain a condensate pump must be used The condensate produced by the boiler has a pH value between 3 and 4 Install a neutralization unit if required by the local code NOTICE The condensate must be drained from the boiler and from the flue in accordance with the appli cable rules and regulations Fig 27 Condensate drain INTAKE EXHAUST 3 80 mm NOTICE U...

Страница 27: ... temper ature sensor Only necessary for outdoor weather respon sive operation WA terminal For connection of a potential free thermostat or relay panel end switch FW Connection for an external DHW tank sensor Fig 28 Removing the cover from the external connection box Fig 29 external connection board Fig 30 Connections to external connection board 1 2 RC FA WA FW EV PK PS PZ Netz DWV 1 2 3 4 5 6 7 8...

Страница 28: ...et high limit The boiler is shut down when the external switching contact is opened The normally closed contacts of a LWCO will shut down burner operation but allow the pump to continue to operate in case of a low water condition DWV Terminal for connection of an external 3 way valve PK Connector for the primary loop pump 120V 60Hz PS Connector for the DHW tank pump 120V 60Hz PZ Connector for the ...

Страница 29: ...Operating switch Earth 120 VAC Function module Mains supply 120 VAC 60 Hz Circulating pump 120 VAC max 250 VA DHW circulator 120 VAC max 250 VA Boiler circulator 120 VAC max 250 VA External connection for specialist servicing company External switch contact Potential free e g for floor heating DHW sensor On Off temperature control potential free Outdoor temperature sensor Modulating room controlle...

Страница 30: ...tools If the knob will not push in or turn by hand don t try to repair it call a qualified service technician Force or attempted repair may result in a fire or explosion Do not use this appliance if any parts have been under water Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water 1 S...

Страница 31: ...e pump manifold for the heating circuit The fill pres sure of the system should be at least the required inlet pressure for the expansion tank plus 7 2 psi 0 5 bar The minimum pressure is 15 psi 1 0 bar on a cold system The maximum pressure is 44 psi 3 0 bar if the heating medium temperature is at its highest possible level If this pressure is exceeded the pressure relief valve will open WARNING C...

Страница 32: ...er 9 4 Bleeding the gas supply valve z Loosen the screw plug on the testing nipple for the gas connection and venting fig 33 pos 1 by two turns and fit a hose z Slowly open the gas shut off valve z Run the gas that is discharged through a water bath z Close the gas shut off valve when no more air is released z Remove the hose and tighten the screw plug again 9 5 Checking the combustion air flue ga...

Страница 33: ...m the gas supply piping system by closing its individual manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than psi 3 5 kPa z Briefly press on the control panel cover to open it z Switch on the heating system by setting the main switch to position 1 see chapter 10 BC10 basic controller page 39 z Press the Chimney Sweep d button and ...

Страница 34: ...Chimney Sweep d button to end the measurement procedure z Close the gas shut off valve z Remove the connection hose again and tighten the screw plug on the testing nipple z Open the gas shut off valve again 9 8 Checking and adjusting the gas air ratio z Switch off the heating system using the main switch z Loosen the screw plug on the measuring nipple for the burner pressure by two rotations fig 3...

Страница 35: ...tial pressure The differential pressure pGas pAir must be 0 02 inch W C 5 Pa 0 02 inch W C 5 Pa read out on pressure gauge 0 04 0 inch W C 10 0 Pa z Enter the value measured in the start up report z If the gas air ratio is not correct it can be adjusted using the adjustment screw fig 37 pos 1 The adjustment screw is located behind the cover screw z Repeatedly press the Service e button until the t...

Страница 36: ... the heat exchanger are dirty or that there may be burner faults z You must establish and resolve the cause The boiler must be operational when you do this 9 11 Function testing z You must check the functioning and if readjustment is possible the adjustment of all control regulating and safety devices when carrying out start up tests annual inspections or maintenance as required z You must also te...

Страница 37: ...two seconds until the display shows the decimal point z Press and hold the Chimney Sweep d and Service e buttons until the display shows Lxx e g L80 z Set the boiler to partial load L30 by pressing the Chimney Sweep d button higher values or the Reset c button lower values z Measure the ionization current When the boiler is in partial load mode the ionization current must be 5 µA DC z Enter the va...

Страница 38: ...t up attempt and three restart attampts After each start up attempt the boiler will signal a start up failure A 6A code can be seen in the display After the last start up attempt the boiler will lock out The 6A code is blinking in the display z Connect the plug and socket connection of the moni toring cable z Press the reset button z Check if the boiler starts up z Press the Chimney Sweep button r...

Страница 39: ...ng burner faults Displaying the operating conditions of the burner The LED indicates the operating condition of the burner Fig 42 BC10 basic controller Controls pos 1 Main switch pos 2 DHW temperature knob pos 3 LED DHW status pos 4 Display pos 5 Space heating water temperature knob pos 6 LED Heating system status pos 7 Under the cover a RC system controller can be installed not available pos 8 LE...

Страница 40: ...e heating system In the event of a fault the display immediately shows the fault or the warning in the form of an error code see subsection 15 2 The status display will flash if the fault is a lock out fault z Press the Service e button to switch between status displays or to read out the service and error codes z Resolve the fault see subsection 15 3 The following status displays can be seen depe...

Страница 41: ...ature in F P3 Current system pressure in psi 1 partially flashing Combination of letters and digits Service code Fault Lock out faults flashing display must be reset by pressing the Reset c button Blocking faults reset automatically as soon as the cause has been removed Remedy any blocking faults that remain active for a long time using the service section in this manual number 199 Error code Reme...

Страница 42: ...ive for the duration of the flue gas test z Press the Chimney Sweep d button max 2 seconds until the decimal point shows in the status display This will switch on the flue gas test z Press and hold the Chimney Sweep d and Service e buttons for approx 5 seconds to enter the partial load mode z Press the Reset c button to reduce the boiler capacity percentage Example boiler capacity reduced to 50 of...

Страница 43: ...apacity 5 boiler cap 24 kW boiler cap 30 kW boiler cap 45 kW boiler cap 60 kW kW btu kW btu kW btu kW btu L30 7 2 24 566 8 7 29 684 13 5 46 062 18 0 61 542 L40 9 6 32 755 11 7 39 920 18 0 61 416 24 0 82 080 L50 12 0 40 944 14 8 50 498 24 5 83 619 30 0 102 630 L60 14 4 49 133 17 8 60 734 27 0 92 178 36 0 123 192 L70 16 8 57 322 20 9 71 311 31 5 107 573 42 0 143 766 L80 19 2 65 510 23 9 81 547 36 0 ...

Страница 44: ...hermostat presetting The temperature is set on the thermostat e g RC30 If no thermostat is connected the maximum DHW temperature is 140 F 60 C On 2 Table 10 Settings of DHW temperature knob 1 This function has been optimized for boilers with combined DHW heating combi units 2 The heating program timer of the room control unit remains active as a result of which no hot water is heated during night ...

Страница 45: ...s F05 The heating system has been factory set to a pump post purge period of 5 minutes z Press the Chimney Sweep d or Reset c buttons to set the pump post purge period The pump post purge period can be set from 5 60 minutes F 5 F60 or to 24 hours F1d z Press the Service e button to confirm the setting CAUTION Set the boiler primary pump post purge period to 24 hours if the heating system is contro...

Страница 46: ...itch off the heating system using the main switch z Close the main shut off valve or the gas shut off valve 11 2 Shutting down the heating system in the event of an emergency You must immediately close the main shut off valve or gas shut off valve and disconnect the power from the heating system z Close the main shut off valve DANGER The heating system may freeze if it is not operational in times ...

Страница 47: ...r from the boiler fig 7 page 13 12 2 Visual inspection for general signs of corrosion z Check all gas and water pipes for signs of corrosion z Replace any pipes that are corroded CAUTION Check and clean the heating system once a year Carry out a maintenance overhaul if necessary Immediately repair defects to avoid damage to the heating system WARNING Do not use this boiler if any part has been und...

Страница 48: ...han 3 8 inch W C 10 mbar per minute you will have to replace the gas burner fitting 12 4 Measuring the ionization current See subsection 9 12 Measuring the ionization current page 37 12 5 Measuring the inlet gas pressure See subsection 9 7 Inlet gas pressure page 33 12 6 Checking and adjusting the gas air ratio See subsection 9 8 Checking and adjusting the gas air ratio page 34 12 7 Carrying out a...

Страница 49: ...e fig 43 pos 2 z Remove the retaining plate z Pull the hot surface ignitor fig 43 pos 3 and the ioniza tion electrode fig 43 pos 4 out of the heat exchanger z Loosen the threaded connection to the gas control valve fig 44 pos 1 and pull the plug fig 44 pos 2 from the gas valve terminal block z Pull the plug from the fan unit fig 44 pos 3 CAUTION There is no need to lubricate the combustion motor a...

Страница 50: ...e plate of the GB142 60 has a different shape z Clean the gas air distributor plate the orifice plate GB142 24 GB142 30 and GB142 60 only and the burner using compressed air z Remove the baffle plate and clean it using compressed air fig 46 z Flush the heat exchanger with water z Re assemble all parts in reverse order of disassembly z Switch on the heating system using the main switch z Press the ...

Страница 51: ...sate trap from the condensate plate fig 48 pos 1 z Loosen the condensate trap from the connection fig 48 pos 2 and remove it z Use a bristle brush to clean the condensate trap z Flush the condensate trap z Fill the condensate trap with water before re installing it z Check the condensate trap gasket for damage and replace it if necessary z Re assemble all parts in reverse order of disassembly 13 2...

Страница 52: ... to lowest setting z Remove the casing fig 49 z Loosen the screw connection on the gas valve fig 44 pos 1 page 49 and pull the plug fig 44 pos 2 page 49 from the gas valve z Pull both plugs from the fan unit fig 44 pos 3 page 49 z Loosen both retaining clips fig 44 pos 4 page 49 on the burner cover and remove the burner cover together with the fan unit and the gas valve z Loosen the three crosshea...

Страница 53: ... start up report z Also check all joints and gaskets affected by the installa tion activities while carrying out the tightness test in oper ating conditions z Place a new sticker underneath the existing rating plate sticker indicating the type of gas supply installed Fill out the required information on the conversion label z Fit the casing again Boiler capacity Type of gas supply Gas orifice diam...

Страница 54: ...the service button is pressed is A01 818 To enable the DHW restart the boiler Display Meaning Normal mode h Boiler in space heating mode h Boiler in DHW heating mode Normal mode 0 a Burner interval circuit burner will start automatically after 10 minutes 0 c Burner is started 0 e More capacity was delivered than required 0 h Standby 0 l Gas burner fitting is opened 0 u Initializing pre purge 0 y F...

Страница 55: ...e g temperature safety switch for floor heating has taken place 9 System faults A 235 Communication fault between UBA and KIM H 237 267 272 UBA fault P 239 UBA fault L 234 238 239 Faulty gas burner fitting cable connection U 233 KIM out of order Y Communication fault between BC10 basic controller and UBA E System faults 1 A C F H L Y Internal UBA fault Display Meaning 2 Water flow water pressure E...

Страница 56: ... 1 0 NPT 25 4 1 0 NPT 25 4 1 0 NPT 25 4 Condensate water connection inch mm Ø 1 3 Ø 32 Ø 1 3 Ø 32 Ø 1 3 Ø 32 Ø 1 3 Ø 32 Flue gas values Condensate water quantity for natural gas G20 104 86 F 40 30 C gallons per hour 2 6 3 3 4 7 7 1 pH value condensate water pH approx 4 1 approx 4 1 approx 4 1 approx 4 1 Flue gas mass flow rate at full load g s 10 0 12 6 19 4 25 9 Flue gas temperature 176 140 F 80 ...

Страница 57: ...able 14 Technical specifications 1 If the heating capacity is limited to max 80 L80 Type of gas supply Factory pre setting of the gas control valve Natural gas Delivered factory set Natural Gas LPG P Suitable for propane after conversion also see the chapter Conversion to another type of gas supply Information on gas type instruction plate Set to gas category Propane Table 15 Factory setting of th...

Страница 58: ...tness test 30 3 Note down the gas characteristics Wobbe index Operating heat value 30 __________ kWh m __________ kWh m 4 Convert the boiler to another type of gas supply only if allowed 52 5 Vent the gas supply conduit 32 6 Check the combustion air flue gas connection 32 7 Measure the gas connection pressure flow pressure 33 ________ inch W C 8 Check and adjust the gas air ratio 34 ________ inch ...

Страница 59: ...e ignition and ionization electrodes First shut down the heating system 49 6 Measure the ionization current 37 _______ µA _______ µA _______ µA 7 Measure the gas connection pressure flow pressure 33 _______ psi _______ psi _______ psi 8 Check the gas air ratio 34 _____ inch W C _____ inch W C _____ inch W C 9 Carry out a gas tightness test in operating conditions 48 10 Measure the carbon monoxide ...

Страница 60: ... enter the date Needs dependent maintenance activities Page Date _____________ Date _____________ 1 Clean the burner the heat exchanger and the condensate trap First shut down the heating system 49 2 Check and adjust the gas air ratio CO2 content with full load CO2 content with partial load 34 _____________ inch W C _______________ _______________ _____________ inch W C _______________ ___________...

Страница 61: ... 68 Cable harness of on off switch 7099072 69 Cable harness BX holder 7099070 70 Fuse holder 38345 71 Seal Ø60 mm 5 pc 7098878 72 O ring set orifice 7099018 73 Seal 5 pc 7099059 74 Set screw M5x20 5 pc 7099065 not shown in exploded views Pos Description Product No 1 Casing 24 30 kW 7099988 Casing 45 60 kW 7099901 2 Casing latches left 2 pc 7099039 3 Casing latches right 2 pc 7099038 4 Casing seal ...

Страница 62: ... Double nipple THR x COMPR 75977 77 Cabel saddle 10 pc 7098810 78 Bolt M6x16 2 pc 7099078 79 Clip pressure sensor 7101370 80 Drainplug 7099364 81 Cap connection piece 38498 82 Clip 5 pc 73651s 83 Centering ring 5 pc 73480s 84 Coupling nut pump 73481s 85 Seal pump 10 pc 15022s 86 Coupling nut pump 15020 87 Conversion set pump 73149 Conversion kit propane 24 30 kW 76687 Conversion kit propane 45 kW ...

Страница 63: ... modifications Buderus http www buderus net Exploded view Logamax plus GB142 24 30 1 2 3 4 33 32 34 27 31 30 29 28 74 74 23 17 17 19 10 11 12 9 8 7 48 20 44 45 16 14 15 47 18 5 6 67 35 36 37 72 43 39 73 40 41 42 58 50 51 53 65 64 54 52 56 62 57 60 61 59 63 13 22 38 26 25 24 21 68 74 71 69 75 76 76 49 70 55 66 66 84 85 85 83 86 87 77 78 82 81 79 80 ...

Страница 64: ...ake any changes due to technical modifications Exploded view Logamax plus GB142 45 60 1 2 3 4 33 32 34 27 31 30 29 28 74 74 23 24 25 26 17 17 19 10 11 12 9 8 7 48 20 44 45 16 14 15 47 18 5 6 67 67 35 36 37 72 43 39 73 40 41 42 58 50 57 63 60 61 59 56 54 51 64 52 53 65 13 22 38 69 62 68 74 21 71 49 55 70 66 83 66 84 85 85 86 87 82 80 81 79 78 77 ...

Страница 65: ... 12 46 Function testing 36 G Gas leak tests 31 Gas nozzles 33 Gas supply conduit 32 Gas supply pressure 33 Gas air distributor plate 50 Gas air ratio 34 H Heat exchanger 49 56 Heating system water 46 Hot water target value 44 I Inspection report 59 Installation room 12 Internal leak testing 48 Ionization current 37 Items supplied with unit 11 M Mains connection 27 Maintenance report 60 Manual mode...

Страница 66: ...Notes 66 Installation Instructions Logamax plus GB142 24 30 45 60 version 10 2007 Buderus http www buderus net We reserve the right to make any changes due to technical modifications ...

Страница 67: ...Notes Installation Instructions Logamax plus GB142 24 30 45 60 version 10 2007 67 We reserve the right to make any changes due to technical modifications Buderus http www buderus net ...

Страница 68: ... Thermotechnology Corporation reserves the right to make changes without notice due to continuing engineering and technological advances Heating Contractor PRODUCTS MANU ACTURED BY BBT Thermotechnik GmbH 35573 WHW ODU www buderus de Bosch Thermotechnology Corp 721 502A 4848 10 2007 ...

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