Cranborne THI 5-25c Installation, Commissioning And Servicing Instructions Download Page 64

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NOMENCLATURE

Rep

Reference

Designation

I20.21441

MESSING SEALED CONNECTION "OLIVE" 22/1

V00.23999

STOP PLATE FOR HEATING AND DHW

K50.24473

DRAIN COCK / RETURN UNIT

Y00.10807

FIXING SYSTEM FOR FLUE PIPE

U00.20366

ELBOW D. 80 45°

E00.24496

SEALING / O’RING INT. D. 39,45

L40.24495

STAINLESS STEEL FILTER / HEATING RETURN

U90.28983

HEATING RETURN UNIT

L20.31471

SENSOR T7335D1024B

N40.16810

REDUCED FLUE OUTLET PIPE F75/M80 L360

A00.19467

BLACK PLASTIC CAP MALE 75

Y07.31106

BOILER COVER; ASSEMBLED; C MODEL

C91.03071

WIRE CARRIER

V07.32114

RING FOR BOILER COVER L685

E20.03890

SEALING AFM34 D 24X17X3

I20.12056

REDUCER D.12 D.4,60

I20.31601

GAS REDUCER GAZ D.

W07.32303

OUTSIDE SENSOR .QAC34/101 THRI

O00.20679

STAINLESS STEEL FLEXIBLE PIPE MALE 1/4 WITH ELBOW

L90.03520

EXPANSION CYLIND, VESSEL 8L MALE 3/4

Y00.20593

WHITE STAND FOR EXPANSION VESSEL THR

C09.31469

CABLE WITH RECTIFIER VDU GAS VALVE

E00.10822

EPDM LIP SEAL D. 80 75 SHORE

E10.12503

EPDM STICKING SEAL PIPE 6/9 LENGTH 18

E20.24399

GASKET DN 80; BLACK POUR LES RÉFÉRENCES (U00.12053) ET (U00.20366)

I30.31973

STOP TECHNYL D.20X19

U00.08190

VERSILIC PIPE 6X10 LENGTH 800MM

U00.11405

VERSILIC SLEEVE 4X8 LENGTH 640

V00.24191

MOUNTING KEY; HONEYWELL

X00.05193

FIXING BRACKET FOR IONISATION PROBE

X90.30472

IGNITION ANGLE WITH SCREW

Summary of Contents for THI 5-25c

Page 1: ...G OR SERVICING THIS APPLIANCE THE CRANBORNE THI 5 25c BOILER IS INTENDED FOR USE AS A DOMESTIC LIGHT COMMERCIAL APPLIANCE FOR HEATING AND DOMESTIC HOT WATER INSTALLATIONS THIS BOILER IS FOR USE ON GROUP H NATURAL GAS 2ND FAMILY I2H PLEASE ENSURE RELEVANT INFORMATION REQUIRED WITHIN DOCUMENT IS FOUND RELATING TO SPECIFIC GAS TO BE FIRED BEFORE FIRING BOILER THIS BOILER COMPLIES WITH ALL RELEVANT EU...

Page 2: ...r pressure variation procedure 22 2 5 Emission of pollutants 22 3 FUNCTIONS 23 3 1 Anti freeze function 23 3 2 Anti legionnella function 23 3 3 Pump run on after the end of heating 23 3 4 Pump kick or selector valve kick 23 3 5 Boiler overheat protection 23 3 6 Monitoring of flue gas temperature 24 3 7 Boiler return temperature control 24 3 8 Monitoring of hydraulic pressure 24 3 9 Anti short burn...

Page 3: ...W production system of type BS 43 6 GAS CONNECTION 46 7 ELECTRICAL CONNECTION 46 7 1 Mains connection 46 7 2 Connection of the sensors to the LMU management unit 46 7 3 Under floor heating safety 46 7 4 Wiring diagram 47 V SETTINGS OF THE INSTALLATION TYPES 48 1 SINGLE CIRCUIT 48 2 DOUBLE CIRCUIT 49 2 1 Without room sensor 50 2 2 With room sensor 50 3 ACCESS THE SETTINGS VIA THE QAA 73 ROOM SENSOR...

Page 4: ... ACCESSORIES 61 5 EXPANSION VESSEL PRE INFLATION PRESSURE CHECK 61 6 COMBUSTION PRODUCT CONDUITS 62 7 DRAINING 62 8 SENSOR RESISTANCES 62 IX OPERATING FAULTS 63 X OPTIONS 65 1 REAR WALL SPACER 65 3 SET UP TAKING ROOM TEMPERATURE INTO ACCOUNT REG 73 66 4 LPB COMMUNICATION CLIP IN KIT REG 130 66 5 2ND HEATING CIRCUIT CLIP IN KIT 66 6 DOUBLE CIRCUIT KIT REG 125 67 7 PROGRAMMABLE RELAY CLIP IN KIT REG...

Page 5: ... unit an outside sensor an expansion vessel a modulating pump PWM signal a 3 bar safety valve a rear wall spacer OPTIONAL Horizontal flue kit C13 allowing the boiler to be connected to a straight horizontal flue Accessories for horizontal connection of the boi ler C13 extensions elbows etc Flue adapter C33 allowing the boiler to be con nected to a vertical flue Accessories for vertical connection ...

Page 6: ...ature maxi C 80 Over heating safety of combustion products C 85 Flow rate of combustion products mini maxi kg h 9 0 44 1 Permitted back pressure C13 maxi Pa 100 Air flow required for combustion m3 h 30 NOx mg kWh 60 CO mg kWh 50 Heating service pressure mini maxi bar 1 3 Heating circuit water temperature maxi C 80 Water overheating safety thermostat C 100 Boiler water capacity litre 2 5 Primary wa...

Page 7: ...y frequency 230 V 10 15 50 Hz Protection factor models B23 model C13 C33 IP 24 IP 44 Weight packaged kg 63 Models THI 5 25 C Models THI 5 25 C Æ Combustion products B23 mm 125 Æ Combustion products C13 C33 mm mm 75 110 80 125 Æ Gas inlet inch 1 Æ Heating flow return inch 1 Æ Condensation outlet mm 25 Æ Safety valve outlet inch 3 4 Æ DHW production system connection option 11 page 68 3 4 with coupl...

Page 8: ... 82 5 a 100 55 6 55 5 61 5 184 5 42 361 THI 04 0 102 20 6 b c d f e h g 19 56 Fig 1 Bottom view Rear view Legend a Combustion products outlet b Gas inlet c Heating flow d Heating return f Connection DHW production system option THI C g Condensate drain h Safety valve drain ...

Page 9: ...ow 7 Heating outlet and safety sensor 8 Heating return manifold 9 Boiler return sensor 10 Ignition transformer 230 V 11 Fan 230 V 12 Boiler shell 13 Sight glass 14 Microprocessor control panel 15 3 speed pump 230 V 16 Air bleed 17 Pressure sensor 18 Filter and drain tap 19 Safety valve 3 bar 20 Safety valve outlet 21 Siphon trap 22 Condensate drain 23 Combustion check window 24 Connection for dome...

Page 10: ... to the sensor instructions j bar auto Function Info O I C Reset THI 01 0 2 3 4 1 6 8 7 10 9 11 12 13 14 5 Fig 10 1 The Function key gives access to 3 operating modes by simply pressing the key auto mode LED 4 on winter mode LED 5 on summer mode LED 4 and 5 off 2 Regulation of the heating temperature setting read on the display 13 3 Regulation of the DHW temperature setting read on the display 13 ...

Page 11: ...d via the KonfigRg7 parameter It is possible to limit the modulation range via the pa rameters NqmodNenn Max range and NqmodMin min range fig 12 Action on the min allows the equilibrium of the ins tallation to be adapted Note A perfectly balanced installation makes for better use of the pump capacities Fig 11 Pump modulating Head m P1 W Q m3 h Q m3 h 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 0...

Page 12: ... internal membrane to the side of the connection and the water dilation pushes on this membrane Optimum efficiency is obtained when the inflation pressure is equal to the water pressure Note The minimum water pressure necessary for the correct working of the installation is defined by the difference in levels between the boiler and the highest point in the installation e g 8 m 0 8 bar Fig 13 0 0 5...

Page 13: ... 18 TECHNICAL SPECIFICATIONS 8 THERMAL EFFICIENCY 10 0 90 0 92 0 94 0 96 0 98 1 00 1 02 1 04 1 06 1 08 1 10 525 09 3 20 30 40 50 60 70 Efficien cy on NCV Return temperature max rate min rate Fig 15 ...

Page 14: ...al control continuously opti mizes the operating rate by using information sent to the microprocessor by the sensors fitted on the boi ler boiler flow sensor boiler return sensor outside temperature sensor flue gas temperature sensor room sensor pressure sensor fan speed control pneumatic air gas control circulating pump speed control communication bus with external regulators Each of the sensors ...

Page 15: ...eturn TLO TNB Standby ti PH_TNB tv TBRE Operation TW1 TW2 tvz tsa1 tsa2 tn tsa TNN tsa1 tsa2 tsa THL2 tn PH_TLO PH_TNN PH_ STANDBY PH_ STARTVER PH_ THL1_1 PH_TV PH_TBRE PH_TW1 PH_TW2 PH_TVZ PH_ TSA2_1 PH_TI PH_ MODU LATION PH_ THL2_1 PH_TN_1 PH_ TSA1_1 PH_ TSA2_2 PH_ TSA1_2 PH_ THL2_2 PH_TN_2 PH_ STOER THL1 PH_ THL1_2 THL1 TW1 PH_TW1 Flame Head demand STANDBY Z Z Logic on Logic off On deviation tr...

Page 16: ...ty time A flame signal should be present before the safety time has elapsed If this does not occur another ignition attempt is made or or PH_TI PH_MODULATION Burner operation 10 heating operation 11 domestic hot water operation 12 heating and domestic hot water operation disabled for THI PH_TI Flame stabilisation interval PH_MODULATION In this phase the LMU regulator send its results Return to sta...

Page 17: ...ion procedure Linear pressure modulation is carried out by a 230 V variable speed fan controlled by the LMU which cal culates the speed needed at any given time to pro duce the required pressure 2 5 Emission of pollutants This air gas control combined with high efficiency pre mixing burner enables CO and nitrogen oxide NOx emissions to be obtained that lie within the values laid down by the most d...

Page 18: ...ater storage tank once a week on Monday after the first load to a 65 C anti le gionnella temperature When the heating mode ends the heating circuit pump remains on for a certain period depending on the settings used QAA 73 setting 544 In hot water storage systems when domestic hot water heating ends the heating circuit pump re mains on until the boiler temperature drops below 70 C During this pump...

Page 19: ...t suddenly the power failure differential is adjusted according to the real temperature curve of the boiler To enable this function press the clean key 6 until the red LED 11 lights up then release it The LED 11 then starts flashing once per period The signal ling coded SF is displayed on the screen 13 Heating takes place at maximum heat output until arriving at the maximum temperature TKSmax To s...

Page 20: ... when this function is activated some of the other functions are not ensured The antifreeze function of the installation is not guaranteed The anti legionella function of the unit is no longer used The automatic summer winter switching function enables summer mode to be switched to winter mode and vice versa throughout the year without the need for any intervention The heating is shut down when sw...

Page 21: ...ion key 1 switches between the sum mer hot water only and winter heating and hot wa ter modes Refer to section 4 6 page 15 Chapter II TECH NICAL SPECIFICATIONS Note An under floor heating system can be connected by following the instructions in section 4 2 3 page 26 4 2 2 Modification of the room temperature The room temperature setting is pre set to 20 C on the LMU management unit it can be modif...

Page 22: ...ifying the parameters of the heating curve slope 1 Initial display Green LED C is on The display shows the heating flow temperature 2 Press the key until is displayed then release it and press for the same period until is displayed the display indicates then intermediate positions 3 After a few moments is displayed 4 Press on the key twice until is displayed on the screen 5 setting of the slope pe...

Page 23: ...t permutes with the default value of the shift 6 Only when the display shows press the key until the bar LED flashes 7 Increase the value by pressing until the value is displayed 8 Store the value by pressing the key for a certain time until the LEDS C and bar extinguish 9 Return to the initial display bar Info C INFO 22 Info Info Info bar Info C INFO 15c Info Info bar Info C INFO 8 Procedure Obse...

Page 24: ... line 75 Note The room temperature compensation function is activated by default on the CC1 heating circuit standard configuration of the sensor The function is activated if the room sensor is pla ced in a room whose temperature is typical of the accommodation This room must not be fitted with temperature control radiators The room sen sor must be fitted away from sources of heat or cold When the ...

Page 25: ...an unusual location special procedures may be necessary and BS 6798 gives detailed guidance on this subject A compartment used to enclose the boiler MUST be designed and constructed specially for this purpose An existing cupboard or compartment may be used provided it is modified for the purpose Details of es sentiel features of cupboard compartment design including airing cupboard installations a...

Page 26: ...at is proportional to their power Efficient venti lation of the installation s premises is therefore necessary according to installation standards High ventilation with a free section of at least 100 cm should be placed at least 1 80 m abo ve the ground as well as an air inlet in the lower part of a cross section of 100 cm To avoid any form of corrosion the combustion air must be free of any harmf...

Page 27: ...l conduit is recommen ded Systematically check that the condition and the cross sectional area of the flue are correctly adopted to open flued combustion product ex traction If they are defective carry out repairs or tubing in accordance with the installation stan dard If the boiler is installed in premises that have me chanical air extraction check regularly that this does not cause negative pres...

Page 28: ...st be efficiently tam per proof so as to prevent any intervention that could affect correct functioning D 0 30 m centre distance from the combustion product ex traction outlet to the ground from a roof overhan ging or above a balcony E 60 m distance of a combustion product extraction out let from a hedge or plant F 0 15 m space between the combustion product extrac tion outlet and a gutter or drai...

Page 29: ...e horizontal balanced flue use a 2 upward grade towards the outside for the combustion product tube To make assembly easier apply liquid soap over 5 cm of the section of the tube to be fitted 3 2 2 1 1 m horizontal balanced flue kit option See kit assembly guide 3 2 2 2 1 m polypropylene concentric flue extensions option 3 2 2 3 Polypropylene concentric bends option Note Each 90 bend added reduces...

Page 30: ...ry 1 horizontal balanced flue kit l 1 m Accessory 1 horizontal balanced flue kit l 1 m 3 2 2 5 2 Flue with bend Accessories 1 horizontal balanced flue kit l 1 m 1 concentric extension Ø 75 110 l 1m 1 x 90 concentric bend Ø 75 110 Note Each 90 bend added reduces the total permitted length by 1m Lmax 4 m 70 Lmax 525 26 0 Fig 30 Top view Rear extraction 70 525 29 0 Lmax Fig 31 Top view Evacuation ver...

Page 31: ...pting collar for the horizontal balanced flue 1 concentric extension Ø 75 110 l 1m 1 x 90 concentric bend Ø 75 110 Note The metal box and bend Ø 75 from the flue kit must not be used fort this type of installation The concentric extension can be cut to adapt to the required collar height Lmax L1 L2 4 m 70 525 28 0 L1 L2 Fig 34 ...

Page 32: ... a vertical wall end walls Apply liquid soap to approximately 5 cm of the part of the tube to be fitted to make assembly easier 3 2 3 1 Polypropylene PVC concentric vertical terminal option For sloping roofs Useful length under sleeve tile l 0 43 m 3 2 3 2 Sleeve tile with adaptive coupling option Suitable for all types of tiles for flat tiles 8 mm use the Slate model If accessories of any other b...

Page 33: ... collars are essential to fix the vertically posi tioned extensions so that the boiler outlet does not bear the weight of the conduits 3 2 3 7 Adapting collar for the vertical balan ced flue See assembly instructions for the part Reference Type of bend Æ int mm Æ ext mm N40 28395 45 80 125 N40 28396 90 80 125 Reference Colour A90 12172 noir Reference Quantity Æ mm B00 29727 3 125 AM5 24 0 90 bend ...

Page 34: ...e 3 fastening collars Ø 125 3 2 3 8 2 Configuration with bends Accessories Vertical balanced flue adapting collars 3 concentric extensions Ø 80 125 2 x 45 concentric bends Ø 80 125 1 concentric vertical terminal Ø 80 125 1 vertical terminal fastening collar delivered with vertical terminal 1 sleeve tile with adaptive coupling depending on the type of roofing and roof slope 1 roof plate 3 fastening...

Page 35: ... 40 INSTALLATION 4 SUPPORT BRACKET THI 15 0 D C E H F F E I Æ7 B A A B A A Fig 45 Models A B C D Emini Fmini G H I J THI 5 25 C 85 100 495 265 10 100 79 56 Top view Rear view Top view ...

Page 36: ... inlet is advised Isolating valve It is recommended to place isolation valves on the installation s flow returns in order to allow possible servicing on the boiler without having to drain the installation Safety valve This must be connected to the used water drain via a siphon funnel Condensate outlet The condensate outlet must be connected to an accessible siphon Expansion vessel If the installat...

Page 37: ...acity should be in the region of 10 li ters Whenever the size of the installation is such that it absorbs the maximum power of the boiler please ensure that there is the following minimum water flow in the exchanger If the boiler directly feeds under floor heating at low DT the necessary flow may be higher In this case please take the DP of the boiler into account and if necessary install a header...

Page 38: ...om sensor option 16 Outside sensor QAC 34 5 6 Hydraulic connection for models THI 5 25C DHW production system of type BS LMU D THI 68 0 9 4 15 16 3 10 11 12 14 17 18 19 B3 TKS THI 68 0 1 2 13 6 7 5 8 Fig 49 1 Gas inlet 2 Gas cock 3 Boiler 4 Radiator 5 Heating flow isolation valve 6 Heating flow 7 Heating return isolation valve 8 Heating return 9 Cold water inlet 10 Filling valve 11 Filling system ...

Page 39: ...e according to the installation standards the premises must be suitable in terms of boiler protection IP 44 model C13 C33 IP 24 model B23 Electrical connection of the boiler to the mains using the supply cable Power supply 230 V 50 Hz single phase Respect the Live Neutral polarities Earth connection compulsory To connect the sensors to the X10 or X11 terminal of the LMU management please refer to ...

Page 40: ...s supply connection 2 Clip in mains connection option 3 Fan motor 230 V 4 Q heating circulating pump 5 Selector valve 6 Ionizing electrode 7 Gas unit 230 V RAC 8 Ignition transformer 230 V 9 Fan PWM signal 10 DHW flow detector 11 PWM pump 12 AN6 pressure sensor 13 AN4 Flue gas sensor 14 AN2 boiler return sensor 15 AN1 boiler flow sensor 16 AN5 outside sensor 17 AN3 DHW1 sensor 18 Programmable digi...

Page 41: ...Note In the case of a single circuit CC1 either a radia tor circuit or an under floor heating circuit However if the boiler directly supplies an under floor heating circuit The QAA 73 settings need changing in accor dance with the table above For recommendations refer to section 5 3 page 42 chapter IV INSTALLATION Necessary accessories LMU D THI 86 0 B3 TKS CC 1 QAA 73 QAC 34 Q VS BS Fig 55 FACTOR...

Page 42: ...he temperature 50 C must be modified via the QAA73 room sensor and brought to the standard values slope 15 T max 80 C refer to table above Necessary accessories Refer to their respective fitting instructions LMU D B3 TKS THI 17 0 CC 1 QAA 73 QAC 34 Q VS BS QAD 36 Q2 VM M QAA 73 CC 2 CID Fig 56 QAA73 FACTORY SETTINGS QAA73 SETTINGS TO CHANGE Function Radiator circuit CC1 Under floor heating circuit...

Page 43: ...potentiometers are then disabled when the sensor is connected 3 ACCESS THE SETTINGS VIA THE QAA 73 ROOM SENSOR Initial display of the QAA 73 room sen sor before the settings are entered 3 1 Access the lines 51 to 98 2 1 Without room sensor 2 2 With room sensor THI 03 0 Buttons Explanation Line 1 Press one of the 2 line selection buttons This will take you to the programming mode End user 1 level D...

Page 44: ...buttons beginning with the button This will take you to the first programming mode LMU 4 level Successive display 2 Press both line selection buttons for at least 3 seconds This will take you to the second programming mode LMU 5 level Successive display 3 Press the line selection buttons to select the required line rep b 4 Press the plus or minus button to enter the required value rep c The settin...

Page 45: ...sion of BIONI BAL Non toxic antifreeze with glycol monopropylene ba se corrosion inhibitor biocide traceable In addition to the characteristics of BIONIBAL it pro tects the installation from frost for residences that are not inhabited all the year round or that are in the coldest regions BIONIBAGEL DOSAGE The number of litres of BIONIBAGEL to put in the circuit depends on the volume of your instal...

Page 46: ...ar is rea ched turn off the filling valve 3 PRESSURE SENSOR The pressure sensor features a small window that displays the pressure status of the system without any mains supply 4 GAS SUPPLY Open the gas cock 2 fig 48 to fig 53 IV INS TALLATION Carefully bleed the gas piping If the installation is new the bleed evacuates the air that is contained in the piping so that the boiler has an adequate fue...

Page 47: ...installation stan dards Check that the boiler is adequately adapted to the gas used Check that the boiler is filled with water and under pressure 1 5 bar and that there are no leaks Never let the pressure drop below 1 bar Check that the electrical connections of the boiler are correct 230 V 50 Hz earth connection com pliant polarities correct Check that the combustion products outlet is cor rectly...

Page 48: ...ults in Chapter IX OPERATING FAULTS page 63 O I 13 14 j bar Info C Reset 10 11 13 THI 81 0 Fig 59 Display Description Consequences according to type of installation Function key 1 gives access to 3 operating modes by pressing auto mode LED 4 on winter mode LED 5 on summer mode LED 4 and 5 off LED 5 on LED 4 off Winter mode The boiler provides heating and domestic hot water Basic boiler model witho...

Page 49: ...with outside sensor only The heating starts up automatically and only when the average outside temperature computed by the LMU is below 19 C The hot water temperature is set manually on the boi ler potentiometer Boiler with outside sensor and room sensor The heating starts up automatically and only when the average outside temperature computed by the LMU is below 19 C The heating and hot water tem...

Page 50: ...e air gas ratio only when the burner is at high rate This setting is carried out in the factory for natural gas type H G20 This means that the pressure Po can be changed to obtain the required gas flow section 3 2 page 59 K Adjust the parallel shift of the characteristic only when the burner is at low rate This screw is pre set in the factory Its setting must not be normally modified even for chan...

Page 51: ...e the V adjustment screw of the gas unit fig 60 to obtain a stable flame Check the CO2 CO ratio see setting table sec tion 3 2 page 59 Set the d h w potentiometer 3 to the maximum on the left the burner switches to the minimum rate Check the CO2 CO ratio see setting table sec tion 3 2 page 59 If necessary adjust screw K fig 60 tightening and untigh tening increases and decreases gas flow Before st...

Page 52: ...ccording to whether back pressure is greater or smaller 3 2 Setting table Models THI 5 25 Natural gas burner type X00 18792 Heat output 30 50 C 60 80 C kW kW 5 4 25 8 4 8 23 9 Heat input kW 5 0 24 5 Æ Gas reducer Nat Gas H mm 5 75 Æ Air reducer Nat Gas H mm 29 Gas flow 15 C 1013 mbar Nat Gas H m3 h 0 53 2 59 Gas pressure Po gas unit to burner Nat Gas H mbar 0 35 4 50 Servo system air pressure PL P...

Page 53: ...he four screws 1 fixing the fan 7 to the burner s air sleeve 6 Clean it using a domestic vacuum cleaner by pla cing the suction device over the air inlet and outlet successively Disassembling the burner Unscrew the four screws fixing 5 the burner 4 to the boiler shell 8 Disassemble the elbow joint 9 Clean the burner 4 using a domestic vacuum cleaner by placing the suction device over the air inlet...

Page 54: ...water to maintain pressure in the installation even though no leaks have been discovered perform an ex pansion vessel check section 5 page 61 5 EXPANSION VESSEL PRE INFLATION PRESSURE CHECK Drop the pressure in the heating installation by opening the drain cock or the safety valve pres sure gauge reading under 0 5 bar Check the pressure in the expansion vessel and if necessary bring it back up to ...

Page 55: ...ure that the air bleed 16 is open as soon as the pressure gauge indicates a null pressure to allow air to enter the boiler shell 8 SENSOR RESISTANCES The resistance of the sensors must be measured after they have been disconnected from the control panel 18 THI 98 0 16 Fig 65 Resistance values of the sensors Temperature Heating outlet sensor Boiler return sensor Domestic hot water sensor Flue gas s...

Page 56: ...or Short circuit on LPB or no voltage Check the wiring Two identical addresses on the LPB Check the addressing Loss of data in the EEPROM Change the LMU Component fault in the LMU Change the LMU Two master clocks only one normally programming problem Check parameter 96 of the QAA73 only one device can have the message QAA73 STB boiler overheating safety activated Check that shunt X3 01 is present ...

Page 57: ...e addressing consistency New LMU configuration The boiler must be reset when a clip in is installed or removed LMU setting error LMU setting problem The boiler is blocked Press Reset to clear the message Violation of the plausibility criteria STB related criteria Check the value of the criteria related to the boiler overheating security The minimum speed threshold of the fan is not reached Check t...

Page 58: ...ical direction Fitting Fit the support plate 2 section 4 chapter IV INSTALLATION Place the rear wall spacer 1 onto the support plate Fit the boiler to the rear wall spacer THi 16 0 46 1 4 5 2 6 3 7 Fig 66 1 Rear wall spacer 2 Frame fixing screw 3 Passage of pipes through the spacer 4 Gas inlet 5 Heating outlet 6 Heating return 7 Condensation drain ...

Page 59: ...he LMU control unit to different units or acces sories of the type RVA 46 zone regulator RVA 47 cascade regulator others distance management etc Refer to kit installation instructions 5 2ND HEATING CIRCUIT CLIP IN KIT The 2nd heating circuit clip in kit is used when a se cond heating circuit is connected to the boiler It al lows the communication between the boiler s LMU control unit and the vario...

Page 60: ...relay clip in kit sensor inlet enables a 2nd heating pump to be controlled in parallel with the boiler pump in the case of operation using a header with the flow sensor positioned at the outlet of the header the heating outlet can be controlled after the header an external safety gas solenoid to be connected an alarm to be connected Refer to kit installation instructions 8 ZHTI 46 CONTROL UNIT REG...

Page 61: ... boiler management use clip in kits LBP 130 Refer to ZHTi 47 technical specifications 11 SELECTOR VALVE KIT FOR CONNECTING THI C BS The selector valve kit allows the connection of a central heating only type boiler to a domestic hot water heater Refer to kit installation instructions REG 128 Fig 75 THI 37 0 Fig 77 ...

Page 62: ... 77 NOMENCLATURE THI 5 25 C ...

Page 63: ...SATION PROBE SHORT 20 26 C90 31466 IGNITION TRANSFORMER ANSTOSS ZAG 2XV 01 10 27 Y00 18234 LEFT HAND CONSOLE 269 4X25X1 5 28 Y07 31991 EQUIPPED FRAME THISION C 29 X00 12864 REMOVABLE PROTECTION FOR BURNER 580 X 30 X 1 5 30 Y00 14139 FASTENING HOOK 31 B00 18392 PIPE RING 41 1 44 32 O90 16681 PIPE BURNER FAN THR 33 Y00 13849 BACK STOP PLATE FOR MZ 3355X80 4X1 5 34 Y00 17570 FLANGE FOR WHITE STAND FO...

Page 64: ...114 RING FOR BOILER COVER L685 68 E20 03890 SEALING AFM34 D 24X17X3 69 I20 12056 REDUCER D 12 D 4 60 69 I20 31601 GAS REDUCER GAZ D 70 W07 32303 OUTSIDE SENSOR QAC34 101 THRI 71 O00 20679 STAINLESS STEEL FLEXIBLE PIPE MALE 1 4 WITH ELBOW 72 L90 03520 EXPANSION CYLIND VESSEL 8L MALE 3 4 73 Y00 20593 WHITE STAND FOR EXPANSION VESSEL THR C09 31469 CABLE WITH RECTIFIER VDU GAS VALVE E00 10822 EPDM LIP...

Page 65: ... 98 NOMENCLATURE CONTROL BOX ...

Page 66: ...LACK BIPOLAR SWITCH 11 L25 17432 TIMER GRASSLIN 230 V FM DIGI20 C09 31469 CABLE WITH RECTIFIER VDU GAS VALVE C90 31497 COVER KEY TOP 4X4 THISION W07 31478 WIRING OF THE CONTROL BOX W07 31479 WIRING OF THE CONTROL BOX 10 50 MODEL W07 31492 CONNECTING CABLE LG LMU64 AGU2 W07 31508 ELECTR CONTROL BOX WIRING 2 13 THISION W07 31542 ELECTRICAL TERMINAL BOX W07 31558 ELECTR CONTROL PANEL WIRING 0 9 9 THI...

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Cranborne THI 5-25c, Installation, Commissioning And Servicing Instructions

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