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  5. Installation, Servicing And Operating Instructions

C&M Minima HE Installation, Servicing And Operating Instructions

Manual is about: Condensing wall hung combination boiler

Summary of Minima HE

  • Page 1

    Manufacturers n° model type gas council n° 3650007.31 minima he 24 nat 47 - 980 - 33 3650008.31 minima he 30 nat 47 - 980 - 34 3650009.31 minima he 35 nat 47 - 980 - 35 condensing wall hung combination boiler heating and instantaneous domestic hot water - fanned flue system installation, servicing a...

  • Page 2

    2 these instructions are suitable for the minima he boilers : do not forget the log book! Chaffoteaux & maury supports benchmark, the heating industry code to ensure the correct installation, commissioning and servicing of domestic central heating systems. To the householder make sure that your inst...

  • Page 3: Contents

    3 customer care page guarantee ............................................................................................................................................................2 statutory requirements ...........................................................................................

  • Page 4

    4 servicing instructions 18 replacement of parts ........................................................................................................................ 41 18.1 to gain general access.......................................................................................................

  • Page 5: User Instructions

    5 user instructions 1. Control panel 30 26 27 25 34 28 fig. 1 33 31 32 29 control panel (fig. 1) 25 .- display 26 .- on/off push button and power on indicator light 27 .- yellow indicator - comfort button 28 .- reset push button and red indicator lock-out light 29 .- dhw control knob and temperature...

  • Page 6: 2. How to Use

    6 switching on and filling instructions 1. Check the pressure in the central heating system is above 0.7 bar and below 1.5 bar with the pressure gauge 16 (fig.1), should it be neccessary to re-pressurise the system,ensure the filling loop 45 (fig. 2) is attached, open the filling taps 43 & 44 , the ...

  • Page 7: 3. Maintenance

    7 stand-by mode turn the control knobs 29 and 30 to the off position to deactivate the dhw and heating. Leave the on/off button on with the green light on. During the stand-by mode the display indicates the time, anti-seizing and anti- freezing will be active. Switch off press the button on/off. Dur...

  • Page 8

    8 6. Fitting and setting the time clock 6.1 fitting the mechanical and digital time clocks to fit the integral time clock it is necessary to proceed as follows; - isolate the electical supply to the appliance; - remove the front panel as described in section 18.1.1; - remove the plastic cover on the...

  • Page 9: (Continued)

    9 3 6 9 12 fig. 8 1. General layout the mechanical clock covers a 24 hour period. Each tappet represents 15 minutes a (fig. 9). An override switch is located on the clock b (fig 9). 2. To set the time to set the time of day, grasp the outer edge of the dial and turn slowly clockwise until the correc...

  • Page 10: (Continued)

    10 p ro g . H m day manual switch summer and winter time setting reset enter weekday/s enter the hours week- days flash enter minutes enter switching times imput time operating the time switch the steps marked with the symbol “ ” are necessary to carry out a switching program. Preparing for operatio...

  • Page 11: (Continued)

    11 entering the switching times you have 20 memory iocations available. Each switching time takes up one memory location. Keep pressing the “prog” key until a free memory location is shown in the display “– –:– –”. Programme on or off with the “ ” key: “ ”= off; “ ”= on enter the hour using “h” ente...

  • Page 12: Installer Instructions

    12 1 .- steel chassis complete with expansion vessel 2 .- sealed chamber 3 .- burner and heat exchanger assembly 4 .- air / gas connection 5 .- 24 v modulating fan 6 .- gas valve 7 .- ignition electrode 8 .- ionisation probe 9 .- ignitor 10 .- combustion products manifold 11 .- siphon 12 .- silencer...

  • Page 13: 8. Dimensions

    13 8. Dimensions 9. Hydraulic data 440 450 mini pour entretien fig. 13 54 54 54 54 jk l m n i jk l m n 32 296 141 289 21 7 2 0 6 9 1 ,5 121,5 i 172,5 4,7 all dimensions in mm with packaging : 24 kw : 37 kg 30 kw : 40 kg 35 kw : 41 kg 390 minimum space required 450 i safety valve c/h and condensate j...

  • Page 14

    14 reference standards in the united kingdom, the installation and initial start up of the boiler must be by a corgi registered installer in accordance with the installation standards curently in effect, as well as with any and all local health and safety standards i.E. Corgi. In the republic of ire...

  • Page 15: (Continued)

    15 electrical supply the appliance requires an earthed 230v - 50 hz supply and must be in accordance with current i.E.E. It must also be possible to be able to completely isolate the appliance electrically. Connection should be via a 3 amp fused double- pole isolating switch with contact separation ...

  • Page 16: (Continued)

    16 10. Installation requirements (continued) 1. Internal termination of condensate drainage pipe to internal stack 2. External termination of condensate drainage pipe via internal discharge branch (e.G. Sink waste) and condensate siphon 3. External termination of condensate drainage pipe via interna...

  • Page 17: 11. Installing The Boiler

    17 please check that you are familiar with the installation requirements before commencing work (section 10). The installation accessories described in the following list are included in the boiler packaging: - hanging bracket - a paper template (showing the dimensions of the boiler with 5 mm side c...

  • Page 18: 11. Installing The Boiler

    18 1 2 a a fig. 19 fig. 16 11. Installing the boiler (continued) fig. 17 p p fig. 18.

  • Page 19: 12. Connecting The Flue

    Fig. 20 5 Ø 60/100 mm the boiler should only be installed with a flue system supplied by mts (gb) limited. These kits are supplied separately to the appliance in order to respond to different installation solutions. For more information with regard to the inlet/outlet accessories consult the accesso...

  • Page 20

    Fig. 23 12.2 fitting the 5” flue (Ø 80 / 125 horizontal/vertical) screws clamp seal c ontents : 1 x s ilicone o-r ing (60mm) 1 x e lbow (90 o ) 2 x w all s eals (i nternal & e xternal ) 1 x f lue p ipe including t erminal (1 metre - 60/100) 1 x f lue c lamp 1 x s crews 1x seal once the boiler has be...

  • Page 21

    Fig. 24 fig. 25 fig. 26.

  • Page 22

    N ote : s ee page 24 for maximum and minimum flue runs . C ontents : 1 x s ilicone o-r ing (60mm) 1 x c onical a daptor (60/100mm) 1 x v ertical f lue k it (80/125mm) 3 x s crews the vertical flue kit is supplied with a specially designed weather proof terminal fitted, it can be used either with a f...

  • Page 23: 12. Connecting The Flue

    12.4 fitting the twin pipe (Ø80/80) n ote : s ee page 24 for maximum and minimum flue runs (t able c) where it is not possible to terminate the flue within the distance permitted for coaxial flues, the twin flue pipe can be used by fitting a special adaptor to the flue connector and using the apertu...

  • Page 24: 123.5

    For coaxial systems, the maximum development value, mentioned in the table above also takes into account an elbow. For twin flue systems the maximum development value, mentioned in the table includes the exhaust gas/air intake terminal. Type 5 outlets should respect the following instructions: 1- us...

  • Page 25: 12. Connecting The Flue

    Exhaust air intake air intake air intake must not be fitted above the exhaust n ote : d rawings are indicative of flueing options only . T ype 1 t ype 5 t ype 4 t ype 3 t ype 2 fig. 33 12. Connecting the flue (continued).

  • Page 26: 13. Electrical Connections

    26 making the electrical connections hinge down the electrical box to gain access to the electrical connections. Push in the tabs p (fig. 34) on either side of the boiler and pivot the box for- ward. Remove the pcb cover (see section 18.4 - page 50). Connect the live neutral and earth wires to the m...

  • Page 27: 13. Electrical Connections

    27 - if a remote time clock is to be fitted, using a volt-free switching time clock, remove the link wire and connect the switching wires from the time clock following points above (see also diagram b fig. 36 ). - if using an external time clock and room thermostat, remove the link wire and connect ...

  • Page 28

    28 mts (gb) limited support the initiative. In sections 24 and 25 (pages 59 and 60) of this manual the commissioning checklist and service interval record can be found. It is important that this is completed in the presence of your customer, they are shown how to use it, and it is signed by them. Pl...

  • Page 29: (Continued)

    29 14. Commissioning and testing (continued) 14.3 adjusting the co2 adjustment screw fig. 38 14.4 gas conversion 14.6 fitting the external sensor q 14.5 adjusting the maximum heating power fig. 37 1. Remove the casing panel as described in section 18 (page 42); 2. Connect a combustion analyser to th...

  • Page 30: (Continued)

    30 1. The system must be visually checked for soundness; 2. Fill the condensate trap with water, by pouring 1/2 a litre of water into the exhaust flue connector (see fig. 42). N.B. In the event of a prolonged period of system shutdown, the condensate trap should be filled before any renewed use. A s...

  • Page 31: 15. Fitting The Casing

    31 1 15. Fitting the casing m n r a fig. 41 fitting the casing remove the protective film on the casing: - locate the lower clips into the slots in the chassis - engage hooks n on the casing in notches r on the side panels m operation (fig. 40) - fit the top of the panel in place - close the panel m...

  • Page 32: 16. Sequence of Operation

    32 16. Sequence of operation activation of the time clock and/or room thermostat starts the boiler. The display panel indicates the flow temperature s in central heating as illustrated below: with the boiler in rest, the diverter valve is in the domestic hot water position, activation of the central...

  • Page 33: 16. Sequence of Operation

    33 16. Sequence of operation the domestic hot water (dhw) production always has priority over the central heating (ch) mode. When a hot tap is turned on, the dhw flow switch is activated. The minimum dhw flow rate is 2 l/min. If the diverter valve is in the ch position it will motor into the dhw pos...

  • Page 34: 17. Adjustments and Settings

    34 the boiler is delivered with pre-set values described in menus 3 and 4. All settings must only be changed by the installer or a qualified person. To gain access to the setting buttons please, open the front door p . (fig. 42) and follow the instructions below. 17. Adjustments and settings display...

  • Page 35

    35 menu - 2 - boiler conditions indicates the conditions or the configurations of the boiler 5 ” menu - 1 - default register record of the last 10 defaults x times once display action configuration note -- is displayed if no default is recorded section digit 1 digit 2 digit 3 and 4 last default occu...

  • Page 36

    36 once section digit 1 digit 2 digit 3 and 4 dhw confort mode 3 0 0 : permanent 1 : 30 mn dhw thermostatic kit fitted to boiler? (limits dhw temp to 60°c) 3 1 0 : no 1 : yes internal time clock action 3 2 0 : central heating and dhw comfort mode 1 : dhw comfort mode 2 : central heating dhw flow swi...

  • Page 37

    37 once f a c to ry s e tt in g display action configuration x times section digit 1 digit 2 digit 3 and 4 stop pump after burner stops 4 0 0 : no 1 : yes pump speed 4 1 0 : high speed 1 : low speed pump post circulation duration 4 2 0 to 5 min by step 0.5 min 4 3 maximum central heating flow temper...

  • Page 38

    38 menu - 5 - combustion rate control mode (test mode) effect display the combustion rate control mode will be inactive when : - boiler is in stand by mode - room thermostat is not calling for heat - boiler in lockout mode - after the default settings have been restored or if the main supply fails (...

  • Page 39

    39 menu - 6 - automatic heating regulation display action configuration once x times f a c to ry s e tt in g section digit 1 digit 2 digit 3 and 4 regulation on 6 0 0 : external sensor present 1 : no external sensor (factory adjustment) heating setting in automatic/manual mode 6 1 0 : adjustment wit...

  • Page 40: 17. Adjustments and Settings

    40 ch anti cycling delay setting : if you would like to change the setting of ch anti cycling delay, if you want 3 min, proceed as follows: (n ote : t he factory setting is 2 min 30 seconds and the following explanation refer to menu 4 section 8) display 17. Adjustments and settings (continued) 1 5 ...

  • Page 41: Servicing Instructions

    41 the life of individual components vary and they will need servicing or replacing as and when faults develop. The fault finding sequence chart in section 19 will help to locate which component is the cause of any malfunction, and instructions for removal, inspection and replacement of the individu...

  • Page 42

    42 18.2.1 removing the air gas assembly 1. Carry out step 18.1.1 ; 2. Remove the silencer (fig. 52) ; 18.2 access to the combustion chamber d 7. Remove the air gas assembly and combustion chamber front (fig. 56); 8. Reassemble in reverse order. 3. Disconnect the detection electrode cable (fig. 53); ...

  • Page 43

    43 18.2.2 removing the burner 18.2.3 removing the detection electrode f 1. Carry out step 18.1.1 and 18.2.1 ; 2. Remove the 3 screws f from the air/gas manifold (fig. 57) ; 3. Slide the burner out from the front, taking care not to damage the insulation (fig. 58); 4. Reassemble in reverse order and ...

  • Page 44

    44 18.2.5 removing the fan 1. Carry out step 18.1.1 ; 2. Remove the air gas manifiold as in 18.2.1 (fig. 67) ; 3. Unscrew the two screws from the venturi j and remove with the gas valve (fig. 68); 4. Unscrew the three screws k on the air/gas pipe and remove (fig. 69); 5. Reassemble in reverse order....

  • Page 45

    45 18.2.7 removing the heat exchanger 1. Carry out step 18.1.1 ; 2. Remove the air gas manifiold as in 18.2.1 (fig. 74) ; 3. Unscrew the three bolts m from the main heat exchanger (fig. 75); 4. Remove the flow and return pipes and the condense drain pipe from the heat exchanger. (fig. 76); 5. Remove...

  • Page 46

    46 18.3 access to the water circuit important! Before any component is removed, the boiler must be drained of all water. 18.3.3 removing the float of the flow switch 1. Carry out step 18.1.1 and 18.1.2 ; 2. Disconnect the wire from the 3 way valve; 3. Remove the clip “ p2 ” and the 3 way valve motor...

  • Page 47

    47 18.3.5 removing the pump 1. Carry out step 18.1.1 ; 2. Lower the electrical box cover as in step 18.1.2; 3. Remove the pcb cover; 4. Remove the pump plug from the control board and earth plug from earth socket (see fig. 92); fig. 92 fig. 93 fig. 94 fig. 95 18.3.4 removing the secondary heat excha...

  • Page 48

    48 18.3.7 removing the expansion vessel 18.3.8 removing the overheat thermostat 1. Carry out step 18.3.1; 2. Isolate the gas supply and disconnect all pipe connections; 3. Remove the boiler from the wall 4. Remove the two screws t (see fig. 97) ; 1. Remove the casing as in step 18.1.1 ; 2. Pull off ...

  • Page 49

    49 18.3.11 removing the pressure switch 1. Remove the casing as in step 18.1.1 ; 2. Pull off the connections. Then remove the pressure switch by releasing it’s securing clip (see fig. 102) . Fig. 102 18.3.10 removing the pressure gauge 1. Carry out step 18.4.6 ; 2. Remove the pressure gauge by relea...

  • Page 50

    50 18.4.2 removing the fuses 1. Carry out step 18.4.1 ; 2. Remove the fuses “ x ” (see fig. 111) 3. Reassemble in reverse order. N ote : f use rating = 2a mp fast fuse fig. 109 fig. 108 w5 x fig. 107 8. To remove the main pcb disconnect all electrical connections and remove the two screws w5 (see fi...

  • Page 51: 19. Incorrect Function

    51 in case of problem, or when the boiler has displayed an error code, the display flashes 2 digits. Please refer to the table below to diagnose the fault. For faults 01 and 03, a appears on the display, the boiler is locked and the reset button illuminates (28). To reset the boiler press the reset ...

  • Page 52: 19. Incorrect Function

    52 if these solutions do not cure the fault, call a qualified professional 19. Incorrect function (continued) fault cause solution the boiler doesn’t start no gas, no water or no electricity control gas, water and electrical supply, fuses… air in the gas pipe purge the air from the gas pipe room the...

  • Page 53: 20. Maintenance Instructions

    53 20. Maintenance instructions (continued) or a vinegar based detergent. Cleaning the water side use detergents that dissolve caco3. Leave to act for a short time and then rinse. Make sure that the detergent does not remain inside the exchanger. Unscrew the lower part of the condensate trap and cle...

  • Page 54: 21. Short Spares List

    54 21. Short spares list 100 burner assembly 101 burner 24kw 61313760 . Burner 30kw 61313763 . Burner 35kw 61314834 . 200 fan assembly 204 temperature probe 990686 ... 231 gasket d:129.4 61306030 ... 400 gas section 401 gas section assy 61307584 . Gas section assy 61310129 . Gas section assy 6131541...

  • Page 55: 22. Notes

    55 22. Notes.

  • Page 56: 23. Technical Data

    56 23. Technical data model minima he 24 ce certificate 1312-bp-4083 performance category **** nox class 5 sedbuk band (%) a (90) category ii2h3p heating output 80°c/60°c kw 7 to 24 heating output 50°c/30°c kw 7 to 26 variable hot water power pn max kw 24 nominal gas flow rate (15 °c-1013 mbar) min ...

  • Page 57

    57 model minima he 30 ce certificate 1312-bp-4084 performance category **** nox class 5 sedbuk band (%) a (90.2) category ii2h3p heating output 80°c/60°c kw 9 to 29 heating output 50°c/30°c kw 9 to 32 variable hot water power pn max kw 29 nominal gas flow rate (15 °c-1013 mbar) min max central heati...

  • Page 58

    Model minima he 35 ce certificate 1312-bp-4084 performance category **** nox class 5 sedbuk band (%) a (90.1) category ii2h3p heating output 80°c/60°c kw 9 to 32 heating output 50°c/30°c kw 9 to 35 variable hot water power pn max kw 35 nominal gas flow rate (15 °c-1013 mbar) min max central heating ...

  • Page 59

    24. Benchmark commissioning checklist 59.

  • Page 60: 23. Service Interval Record

    23. Service interval record 60

  • Page 61

    61.

  • Page 62

    62.

  • Page 63

    63.

  • Page 64: Plea

    1 3 1 5 8 6 7 a - 0 5 /2 0 0 5 c h a ff o te a u x & m a u ry a re c o n ti n u o u sl y i m p ro vi n g t h e ir p ro d u ct s a n d t h e re fo re r e se rv e t h e r ig h t to c h a n g e s p e ci fi ca ti o n s w it h o u t p ri o r n o ti ce a n d a cc e p ts n o l ia b ili ty f o r a n y e rr ...