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CONDENSING WALL HUNG COMBINATION BOILER
Heating and Instantaneous Domestic Hot Water - Fanned Flue system
Installation, Servicing and Operating Instructions
Manufacturers N°
3650007.31
3650008.31
3650009.31
Country of destination
M M i i n n i i m m a a H H E E
Model Type
Minima HE 24 Nat
Minima HE 30 Nat
Minima HE 35 Nat
GB
IE
Gas Council N°
47 - 980 - 33
47 - 980 - 34
47 - 980 - 35
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Table of Contents
Related Manuals for C&M Minima HE
Summary of Contents for C&M Minima HE
- Page 1 Heating and Instantaneous Domestic Hot Water - Fanned Flue system Installation, Servicing and Operating Instructions 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...
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Page 2: Customer Care
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 installer completes Section 24 of this manual (page 60) . -
Page 3: Table Of Contents
Contents CUSTOMER CARE Page Guarantee ................................2 Statutory Requirements ............................2 Contents ................................3 INTRODUCTION ..............................4 USER INSTRUCTIONS ............................5 1 CONTROL PANEL............................5 2 HOW TO USE ..............................6 3 MAINTENANCE ...............................7 4 GUARANTEE..............................7 5 PRACTICAL INFORMATION...........................7 6 FITTING AND SETTING THE TIME CLOCK....................8 FITTING THE MECHANICAL AND DIGITAL CLOCKS ................8 SETTING THE MECHANICAL CLOCK ....................9 SETTING THE DIGITAL CLOCK......................10 INSTALLERS’... -
Page 4: Introduction
INTRODUCTION is a fully automatic, wall mounted, low water content condensing combination boiler. It is a room MINIMA HE sealed, fan assisted, balanced flued appliance providing central heating and mains pressure domestic hot water on demand. It has electronic ignition and is suitable for all modern electrical control systems. The boiler is designed for sealed systems only and a circulating pump, expansion vessel together with a pressure gauge and safety valve are included within the boiler. -
Page 5: User Instructions
USER INSTRUCTIONS 1. Control panel Fig. 1 Control panel (Fig. 1) Connecting bracket Taps shown in Open position (Fig. 2) 25.- Display 26.- On/off push button and power on indicator light 39 : Gas service tap 27.- Yellow indicator - Comfort button 40 : Water service tap 28.- Reset push button and red indicator lock-out light 29.- DHW control knob... -
Page 6: How To Use
2. How to use 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 pressure gauge will now start to rise, once the pressure reads 1.0 bar, close the filling taps and disconnect the filling loop. -
Page 7: Maintenance
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. -
Page 8: Fitting And Setting The Time Clock
6. Fitting and setting the time clock 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 right hand side (Fig. -
Page 9: Setting The Mechanical Clock
6. Fitting and setting the time clock (continued) Setting the mechanical clock Fig. 8 Fig. 9 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). -
Page 10: Setting The Digital Clock
6. Fitting and setting the time clock (continued) Setting the Digital Clock Manual switch Summer and winter time setting Reset Enter Enter switching the hours times Week- days flash Imput Enter time minutes Enter weekday/s Operating the time switch The steps marked with the symbol “ ”... - Page 11 6. Fitting and setting the time clock (continued) 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 “...
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Page 12: Installers' Instructions
INSTALLER INSTRUCTIONS 7. Description 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: Dimensions
8. Dimensions All dimensions in mm Safety valve C/H and condensate Heating flow D.H.W. outlet Gas supply Cold water inlet Heating return With packaging : 24 kW : 37 kg 30 kW : 40 kg 35 kW : 41 kg 172,5 minimum space required 450 450 mini pour entretien... -
Page 14: Installation Requirements
10. Installation requirements Reference Standards must not be installed in a place likely to cause nuisance. It In the United Kingdom, the installation and initial start up of must not be allowed to discharge into another room or space the boiler must be by a CORGI Registered installer in such as an outhouse or closed lean-to. - Page 15 10. Installation requirements (continued) Electrical Supply System Controls The appliance requires an earthed 230V - 50 Hz supply and The boiler is electrically controlled and is suitable for most must be in accordance with current I.E.E. It must also be modern electronic time and temperature controls.
- Page 16 10. Installation requirements (continued) 1. Internal termination of condensate drainage pipe to 2. External termination of condensate drainage pipe via internal stack internal discharge branch (e.g. sink waste) and condensate siphon 3. External termination of condensate drainage pipe via 4. External termination of condensate drainage pipe via internal discharge branch (e.g.
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Page 17: Installing The Boiler
11. Installing the boiler 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 clearances) - Connection tails and valves - Screws and washers - Connection washers... - Page 18 11. Installing the boiler (continued) Fig. 16 Fig. 17 Fig. 18 Fig. 19...
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Page 19: Connecting The Flue
12. Connecting the Flue 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 accessory catalogue. The boiler is supplied ready for connection to a concentric flue system. -
Page 20: Fitting The Coaxial Flue (Ø 60/100 Horizontal)
12.1 Fitting the coaxial flue (Ø 60/100 Horizontal) ONTENTS (60mm) ILICONE LBOW & E EALS NTERNAL XTERNAL - 60/100) IPE INCLUDING ERMINAL METRE LAMP CREWS 1x Seal Once the boiler has been positioned on the wall, insert the elbow into the socket and rotate to the required position. : It is NOTE possible to rotate the elbow 360... - Page 21 Fig. 24 Fig. 25 Fig. 26...
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Page 22: Fitting The Vertical Flue (Ø 60 / 100)
12.3 Fitting the Coaxial Flue (Ø 60 / 100 Vertical) EE PAGE FOR MAXIMUM AND MINIMUM FLUE RUNS ONTENTS (60mm) ILICONE (60/100mm) ONICAL DAPTOR (80/125mm) ERTICAL CREWS The vertical flue kit is supplied with a specially designed weather proof terminal fitted, it can be used either with a flat roof or a pitched roof. -
Page 23: Fitting The Twin Flue (Ø 80 / 80)
12. Connecting the flue (continued) 12.4 Fitting the twin pipe (Ø80/80) EE PAGE FOR MAXIMUM AND MINIMUM FLUE RUNS ABLE 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 aperture for the air intake located on top of the combustion chamber. - Page 24 12. Connecting the flue (continued) 123.5 Fig. 31 In the event that twin flue pipes are used, and the boiler has a side clearance of less than 60mm from the wall, it is necessary to cut a larger diameter hole for the flue pipe, this should be ø100 mm, this will then allow for easier assembly of the air intake elbow and the tube outside the wall (see Fig.
- Page 25 12. Connecting the flue (continued) RAWINGS ARE INDICATIVE OF FLUEING OPTIONS ONLY AIR INTAKE MUST NOT BE FITTED ABOVE THE EXHAUST AIR INTAKE EXHAUST AIR INTAKE Fig. 33...
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Page 26: Electrical Connections
13. Electrical connections 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). - Page 27 13. Electrical connections (continued) 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 in series as above (see also Diagram C Fig.
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Page 28: Commissioning And Testing
14. Commissioning and testing 14.1 Initial preparation MTS (GB) Limited support the initiative. In When installation and filling are completed, adequately purge Sections 24 and 25 (pages 59 and 60) of this manual the the gas installation of air, flush the sytem while cold, refill, Commissioning Checklist and Service Interval turn on the Central Heating system (Section 2 - page 6) and Record can be found. -
Page 29: Adjusting The Co2
14. Commissioning and testing (continued) 14.3 Adjusting the CO2 14.5 Adjusting the maximum heating power 1. Remove the casing panel as described in Section 18 To adjust the maximum heating power it is necessary to (page 42); access the settings menu by pressing the 2. -
Page 30: Adjusting The Parallel Shift
14. Commissioning and testing (continued) 14.10 Operational checks 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. -
Page 31: Fitting The Casing
14. Commissioning and testing (continued) 24 kW 30 kW 35 kW 22.4 32.5 20.8 19.2 27.5 17.6 22.5 14.4 12.8 17.5 11.2 12.5 9 10 Fig. 39 Steps (Value P min - P max - Menu 4) 15. Fitting the casing Fitting the casing Remove the protective film on the casing: - Locate the lower clips into the slots in the chassis... -
Page 32: Sequence Of Operation
16. Sequence of operation 16.1 Central Heating Mode 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: Central heating mode ON Room thermostat contact ON With the boiler in rest, the diverter valve is in the domestic hot water position, activation of the central heating changes the position of the motorised valve head, moving the diverter valve into the central heating position. -
Page 33: Domestic Hot Water Mode
16. Sequence of operation 16.2 Domestic Hot Water Mode 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 position and the boiler will start. -
Page 34: Adjustments And Settings
17. Adjustments and settings 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 Fig. - Page 35 ACTION CONFIGURATION DISPLAY Menu - 1 - Default register 5 ” Record of the last 10 defaults Section Digit 1 Digit 2 Digit 3 and 4 code from 01 to 99 Last default occured Last but one default occurred code from 01 to 99 code from 01 to 99 x times Last default occurred before the previous...
- Page 36 ACTION CONFIGURATION DISPLAY Menu - 3 - Boiler options once Section Digit 1 Digit 2 Digit 3 and 4 0 : permanent DHW Confort mode 1 : 30 mn x times 0 : no DHW thermostatic kit fitted to boiler? (limits DHW temp to 60°C) 1 : yes 0 : central heating and...
- Page 37 ACTION CONFIGURATION DISPLAY Menu - 4 - Boiler settings once Section Digit 1 Digit 2 Digit 3 and 4 0 : no Stop pump after burner stops 1 : yes x times 0 : High speed Pump speed 1 : Low speed 0 to 5 min by step Pump post circulation duration 0.5 min...
- Page 38 ACTION CONFIGURATION DISPLAY Menu - 5 - Combustion rate control mode (test mode) Effect Display once Combustion rate control mode OFF Combustion rate control mode ON The main exchanger temperature appears on the display. The digit - on the display shows the gas output level.
- Page 39 ACTION CONFIGURATION DISPLAY Menu - 6 - Automatic heating regulation once Section Digit 1 Digit 2 Digit 3 and 4 0 : External sensor present Regulation on 1 : No external sensor (factory adjustment) 0 : Adjustment with inactive external x times Heating setting in sensor (factory adjustment)
- Page 40 17. Adjustments and settings (continued) 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: HE FACTORY SETTING IS SECONDS AND THE FOLLOWING EXPLANATION REFER TO MENU SECTION Display 5 ”...
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Page 41: Servicing Instructions
SERVICING INSTRUCTIONS To ensure efficient safe operation, it is recommended that the boiler is serviced annually by a competent person. Before starting any servicing work, ensure both the gas and electrical supplies to the boiler are isolated and the boiler is cool. -
Page 42: Access To The Combustion Chamber
18.2 Access to the Combustion Chamber 18.2.1 Removing the air gas assembly 1. Carry out step 18.1.1; 3. Disconnect the detection 4. Remove the earth cable from the 2. Remove the silencer (Fig. 52); electrode cable (Fig. 53); ignition electrode (Fig. 50), and remove the ignition electrode cable from the ignitor (Fig. -
Page 43: Removing The Burner
18.2.2 Removing the burner 1. Carry out step 18.1.1 and 18.2.1; 3. Slide the burner out from the 4. Reassemble in reverse order 2. Remove the 3 screws F from the front, taking care not to damage and checking all seals are air/gas manifold (Fig. -
Page 44: Removing The Fan
18.2.5 Removing the fan 1. Carry out step 18.1.1; 3. Unscrew the two screws from 4. Unscrew the three screws K on 2. Remove the air gas manifiold as the venturi J and remove with the air/gas pipe and remove in 18.2.1 (Fig. -
Page 45: Removing The Heat Exchanger
18.2.7 Removing the heat exchanger 3. Unscrew the three bolts M from 4. Remove the flow and return 1. Carry out step 18.1.1; the main heat exchanger (Fig. pipes and the condense drain 2. Remove the air gas manifiold as 75);... -
Page 46: Access To The Water Circuit
18.3 Access to the Water Circuit Important! Before any component is removed, the boiler must be drained of all water. 18.3.1 Drain down DHW : close the DHW inlet tap and open a tap on the installation CH : Close the flow and return isolating valve and open the pressure relief valve. -
Page 47: Removing The Secondary Heat Exchanger
18.3.4 Removing the secondary heat exchanger 4. Unscrew the two fixing screws R and pull the heat 1. Carry out step 18.1.1 and 18.1.2; exchanger toward you (see Figs. 90 & 91); 2. Remove the 3 way valve motor as in step 18.3.2; 5. -
Page 48: Removing The Pressure Relief Valve
18.3.6 Removing the pressure relief valve 1. Carry out step 18.1.1 and 18.3.1; 2. Remove the clip securing the valve (see Fig. 99) and pull it toward you; 3. Reassemble in reverse order; take care to ensure the valve is in the correct position;... -
Page 49: Removing The Pressure Gauge
18.3.10 Removing the pressure gauge 18.3.11 Removing the pressure switch 1. Carry out step 18.4.6; 1. Remove the casing as in step 18.1.1; 2. Remove the pressure gauge by releasing the two 2. Pull off the connections. Then remove the pressure clips V and pulling the pressure gauge out. -
Page 50: Removing The Fuses
6. To remove the display PCB, remove the two 8. To remove the main PCB disconnect all electrical screw W3 and lift the PCB out (see Fig. 107); connections and remove the two screws W5 (see 7. Reassemble in reverse order; Fig. -
Page 51: Incorrect Function
19. Incorrect function 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 button 28. -
Page 52: Maintenance Instructions
19. Incorrect function (continued) Fault Cause Solution Control gas, water and electrical The boiler doesn’t start No gas, no water or no electricity supply, fuses… Air in the gas pipe Purge the air from the gas pipe Room thermostat switched off Turn the room thermostat up Wait for a few minutes Press the reset button 28 (Fig. -
Page 53: Operational Test
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. 20.3 Operational test Make sure that the detergent does not remain inside the exchanger. -
Page 54: Short Spares List
21. Short spares list Manf. date Key N° Description G.C N° Manf. Pt. N° Type from BURNER ASSEMBLY 61313760 BURNER 24KW 61313763 BURNER 30KW 61314834 BURNER 35KW FAN ASSEMBLY 990686 TEMPERATURE PROBE 61306030 GASKET D:129.4 GAS SECTION 61307584 GAS SECTION ASSY 61310129 GAS SECTION ASSY 61315410... -
Page 55: Notes
22. Notes... -
Page 56: Technical Data
23. Technical data Model Minima HE 24 CE certificate 1312-BP-4083 Performance category **** NoX class SEDBUK Band (%) A (90) Category II2H3P Heating output 80°C/60°C 7 to 24 Heating output 50°C/30°C 7 to 26 Variable hot water power Pn max Nominal gas flow rate (15 °C-1013 mbar) - Page 57 Model Minima HE 30 CE certificate 1312-BP-4084 Performance category **** NoX class SEDBUK Band (%) A (90.2) Category II2H3P Heating output 80°C/60°C 9 to 29 Heating output 50°C/30°C 9 to 32 Variable hot water power Pn max Nominal gas flow rate (15 °C-1013 mbar) Central Heating &...
- Page 58 Model Minima HE 35 CE certificate 1312-BP-4084 Performance category **** NoX class SEDBUK Band (%) A (90.1) Category II2H3P Heating output 80°C/60°C 9 to 32 Heating output 50°C/30°C 9 to 35 Variable hot water power pn max Nominal gas flow rate (15 °C-1013 mbar) Central Heating &...
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Page 59: Benchmark Commissioning Checklist
24. Benchmark Commissioning Checklist... -
Page 60: Service Interval Record
23. Service Interval Record... - Page 64 ERMS AND ONDITIONS OF UARANTEE Please read these terms and conditions which are in On the 12 month anniversary of the appliance addition to any terms and conditions detailed in this book installation, you must have it serviced to continue any or any registration card supplied with your appliance.