Related Manuals for DeDietrich MCR 24
Summary of Contents for DeDietrich MCR 24
- Page 1 MCR 24, 24/28 MI, 30/35 MI, 34/39 MI English Wall-hung gas condensation boilers 08/06/06 Technical instructions...
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Page 2: Table Of Contents
Spare parts - MCR 24, 24/28 MI, 30/35 MI, 34/39 MI....... -
Page 3: Compliance
Inspecting organisation Gastec (Netherland) Values: Standards EN 297 A3 NOx < 114 (mg/kWh) 65 ppm; CO < 65 (mg/kWh) 65 ppm Date 22/06/04 Signature Technical Director Mr Bertrand SCHAFF 08/06/06 - 300008460-001-B MCR 24, 24/28 MI, 30/35 MI, 34/39 MI... -
Page 4: Symbols Used
(For Belgium: Comply with the NBN B61-002 standard). At nominal output, the temperature of the components does not exceed 85 °C. MCR 24, 24/28 MI, 30/35 MI, 34/39 MI 08/06/06-300008460-001-B... -
Page 5: Description
- central heating using radiators or underfloor heating See "Adapting to another gas" (MCR 24); The MCR 24 boiler can be connected to a 80 or 130 litre tank to - central heating and instant domestic hot water production produce domestic hot water. -
Page 6: Main Parts
Gas block Display Control panel Pressure gauge Circulating pump Expansion chamber (only for MCR 24,MCR24/28 MI,MCR 30/35 MI) Ignition/ionisation electrode Stand off mounting frame (optional) Expansion chamber (optional): only for MCR 34/39 MI MCR 24, 24/28 MI, 30/35 MI, 34/39 MI... -
Page 7: Technical Data
Insulation class IPX4D IPX4D IPX4D IPX4D 1 mbar = 100 Pa - 1 daPa ~ 1 mm H Cold water temperature: 10 °C; Domestic hot water temperature: 85 °C 08/06/06 - 300008460-001-B MCR 24, 24/28 MI, 30/35 MI, 34/39 MI... -
Page 8: Main Dimensions
CX50 MCR 24/28MI BE DY847 CX50 MCR 30/35MI BE DY847 CX50 MCR 34/39MI BE DY847 CX50 2 Serial number The serial number can be found on the boiler's rating plate. C000655 MCR 24, 24/28 MI, 30/35 MI, 34/39 MI 08/06/06-300008460-001-B... -
Page 9: Mounting Frame
Outlet storage tank (Inside diameter 16 mm) Outlet storage tank (External diameter 15 mm) Condensates evacuation pipe (3/4") Condensates evacuation pipe (3/4") Safety valve (diameter 15) Safety valve (diameter 15) 08/06/06 - 300008460-001-B MCR 24, 24/28 MI, 30/35 MI, 34/39 MI... - Page 10 Outlet storage tank (Inside diameter 16 mm) Outlet storage tank (External diameter 15 mm) Condensates evacuation pipe (3/4") Condensates evacuation pipe (3/4") Safety valve (Ø 15 mm) Safety valve (Ø 15 mm) MCR 24, 24/28 MI, 30/35 MI, 34/39 MI 08/06/06-300008460-001-B...
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Page 11: Operation
The MCR boiler is fitted with an electronic temperature regulator with outlet and return temperature sensors. The outlet temperature can be set between 20 and 85. The boiler increases or lowers power as a function of instructions. 08/06/06 - 300008460-001-B MCR 24, 24/28 MI, 30/35 MI, 34/39 MI... -
Page 12: Control Panel
The symbols located above the function keys indicate their current function. Pressing on any key will display the current status of the boiler and the current command code. If there is a malfunction, the corresponding code continues to be displayed. MCR 24, 24/28 MI, 30/35 MI, 34/39 MI 08/06/06-300008460-001-B... -
Page 13: Parameter Display
1 time to return to the current operating mode. - Press the key. The symbol flashes. To access the parameters, press key - Press the + key successively to scroll down the various parameters. 08/06/06 - 300008460-001-B MCR 24, 24/28 MI, 30/35 MI, 34/39 MI... - Page 14 - Press the - key until the OFF symbol is displayed. - Press the key to modify the setting. - Press the key to modify the setting. - The symbol appears. - The symbol appears. production of domestic hot water: activated. MCR 24, 24/28 MI, 30/35 MI, 34/39 MI 08/06/06-300008460-001-B...
- Page 15 - Starting from the current operating status, press key - The symbol and the current temperature are displayed. - Press the + or - key to modify the value. - To confirm, press the key. 08/06/06 - 300008460-001-B MCR 24, 24/28 MI, 30/35 MI, 34/39 MI...
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Page 16: Hydraulic Specifications
To obtain other volumes, multiply the volume of the system by one of the factors: 0.048 0.080 0.133 If the water volume is greater than 100 litres or the static height of the system exceeds 5 metres, an additional expansion tank must be fitted. MCR 24, 24/28 MI, 30/35 MI, 34/39 MI 08/06/06-300008460-001-B... -
Page 17: Installation
(RGIE). Belgium:the cross-section of the aeration vents, which are compulsory in the room in which the boiler is installed, must comply with the NBN D 51-003 standard. 08/06/06 - 300008460-001-B MCR 24, 24/28 MI, 30/35 MI, 34/39 MI... - Page 18 If using thermostatic valves, it is not necessary to fit them to every radiator. Never fit radiators in the room in which the room temperature thermostat is installed with thermostatic valves. MCR 24, 24/28 MI, 30/35 MI, 34/39 MI 08/06/06-300008460-001-B...
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Page 19: Water Treatment And Connections
To do this, fill the siphon with water via the combustion products discharge conduit until it overflows. Operation while the condensation water siphon is empty may damage the boiler. There is a danger that combustion 08/06/06 - 300008460-001-B MCR 24, 24/28 MI, 30/35 MI, 34/39 MI... - Page 20 Mount the flue gas pipe or the fresh air/flue gas evacuation system in compliance with the assembly instructions. Check the tightness of the flue gas pipe. MCR 24, 24/28 MI, 30/35 MI, 34/39 MI 08/06/06-300008460-001-B...
- Page 21 (combustive air taken from outside) Homologation B : Chimney connection (combustive air taken from the boiler room) Homologation B : Cascade installation 08/06/06 - 300008460-001-B MCR 24, 24/28 MI, 30/35 MI, 34/39 MI...
- Page 22 Belgium:Boilers can only be installed with the stove fittings provided by the constructor. For the list of parts, refer to the current price list. Assembly horizontal or vertical forced flue and forced flue accessories Refer to the instructions delivered with the package. MCR 24, 24/28 MI, 30/35 MI, 34/39 MI 08/06/06-300008460-001-B...
- Page 23 Connection to an outside wall or roof outlet. A Flue gases B Combustive air • Connection C - Concentric vertical forced flue Connection to a sloping or flat roof. A Flue gases B Combustive air 08/06/06 - 300008460-001-B MCR 24, 24/28 MI, 30/35 MI, 34/39 MI...
- Page 24 C Horizontal section (Maximum length 1 m) • Connection C : For Belgium) - Concentric pipes in the boiler room - Inspection tube for flexible pipe (combustive air in counter current) MCR 24, 24/28 MI, 30/35 MI, 34/39 MI 08/06/06-300008460-001-B...
- Page 25 Chimney conduit fitting into a chimney, combustive air taken in the premises. A Flue gases B Horizontal section (max 1 m) C Chimney connection kit D Combustive air 08/06/06 - 300008460-001-B MCR 24, 24/28 MI, 30/35 MI, 34/39 MI...
- Page 26 For Belgium + Certain European countries If you use a two-phase electrical grid, jumper must be removed (130 V: Lane/Neutral). The boiler is not sensitive to phase reversal. MCR 24, 24/28 MI, 30/35 MI, 34/39 MI 08/06/06-300008460-001-B...
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Page 27: Connecting The Options
- Flow collector (For Belgium+Poland) up 2 x 1.5 mm Refer to the instructions delivered with the package. Refer to the instructions delivered with the package. 08/06/06 - 300008460-001-B MCR 24, 24/28 MI, 30/35 MI, 34/39 MI... -
Page 28: Connecting The External Controls
- Remove the front panel of the cladding. - Run the cables in the cable clamps. - Connect the cables to the connectors (See drawing opposite). Switch off the mains electricity supply before carrying out any work. MCR 24, 24/28 MI, 30/35 MI, 34/39 MI 08/06/06-300008460-001-B... - Page 29 15. Existing bridge. To be used when room thermostat is connected. 16. Switch: Heating (To use this function, remove the bridge between terminals 4 and 1) *Depending on parameter settings 08/06/06 - 300008460-001-B MCR 24, 24/28 MI, 30/35 MI, 34/39 MI...
- Page 30 (Adjustment parameter P29, from 0 to -30°C) - Maximum temperature setting point = 20 °C (Adjustment parameter P28, from 0 to 40°C) - Outlet temperature setting point at a maximum outside temperature = 20 °C MCR 24, 24/28 MI, 30/35 MI, 34/39 MI 08/06/06-300008460-001-B...
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Page 31: Connection Of The Domestic Hot Water Sensor
- If the water temperature is lower than 7°C, the circulating pump is activated, - If the water temperature is lower than 3°C, the boiler is activated, 08/06/06 - 300008460-001-B MCR 24, 24/28 MI, 30/35 MI, 34/39 MI... -
Page 32: Safety Contact
- Connect an external gas valve to pins 1 and 3 of terminal block X7. The contact is closed when the gas valve is activated. To do so: Set parameter 24 to 3. MCR 24, 24/28 MI, 30/35 MI, 34/39 MI 08/06/06-300008460-001-B... -
Page 33: Pump Logic
Refer to the instructions delivered with the package. - If necessary, when the boiler temperature falls below 10°C, the pump starts up to ensure that the boiler is protected from frost. 08/06/06 - 300008460-001-B MCR 24, 24/28 MI, 30/35 MI, 34/39 MI... -
Page 34: Commissionning
Fill the installation with water. Cut the power supply to the boiler Unscrew the 2 screws. Remove the front panel. Disconnect the 2 ignition electrodes from the connector/ignition on the gas valve. MCR 24, 24/28 MI, 30/35 MI, 34/39 MI 08/06/06-300008460-001-B... - Page 35 Check the condensates discharge siphon; it must be filled with clean water up to the mark. Check the boiler pump. Remove the central chrome screw to bleed the pump. Carry out a water tightness check. 08/06/06 - 300008460-001-B MCR 24, 24/28 MI, 30/35 MI, 34/39 MI...
- Page 36 Setting the gas/air ratio (Full load) of the smoke evacuation pipe. Belgium: Any intervention on the gas valve unit is strictly forbidden. The boiler is preset in the factory to operate on natural gas. MCR 24, 24/28 MI, 30/35 MI, 34/39 MI 08/06/06-300008460-001-B...
- Page 37 Repeat the high speed test and the low speed test as often as necessary until the correct values are obtained without having to make additional adjustments. 08/06/06 - 300008460-001-B MCR 24, 24/28 MI, 30/35 MI, 34/39 MI...
- Page 38 Write down the type of gas on the sticker on the inside of the flap. MCR 24, 24/28 MI, 30/35 MI, 34/39 MI 08/06/06-300008460-001-B...
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Page 39: Commissioning
Parameters P1 to P6 can be modified by the user in order to meet central heating and DHW comfort needs. • "Installer" settings Parameters P17 to dF must only be modified by a qualified professional. 08/06/06 - 300008460-001-B MCR 24, 24/28 MI, 30/35 MI, 34/39 MI... - Page 40 Y, the factory parameters will be reinstated **The character - is not displayed. Modification of the factory parameters may be detrimental to the functioning of the boiler. MCR 24, 24/28 MI, 30/35 MI, 34/39 MI 08/06/06-300008460-001-B...
- Page 41 Setting the maximum output (Hi): Heating Parameter P17 (maximum fan speed) is used to modify maximum central heating output. Fan speed/boiler output ratio 08/06/06 - 300008460-001-B MCR 24, 24/28 MI, 30/35 MI, 34/39 MI...
- Page 42 To reinstate the factory settings, enter the value X using the - or + key. - Press the key. The symbol dU:Y appears. To reinstate the factory settings, enter the value Y using the - or + key. - To confirm, press the key. MCR 24, 24/28 MI, 30/35 MI, 34/39 MI 08/06/06-300008460-001-B...
- Page 43 If the central heating system is not used for a long period, we recommend switching the boiler off Switch the boiler off. Cut the power supply to the boiler. Cut the gas supply. 08/06/06 - 300008460-001-B MCR 24, 24/28 MI, 30/35 MI, 34/39 MI...
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Page 44: Adapting To Another Gas
6300 6700 8.8±0.3 speed Propane (Factory Nominal power 3500 3500 3900 4500 10.5±0.3 setting : Pr) Minimum output 2000 2000 2000 2000 10.5±0.3 Maximum DHW 4400 5200 6000 6400 10.5±0.3 speed MCR 24, 24/28 MI, 30/35 MI, 34/39 MI 08/06/06-300008460-001-B... - Page 45 Adjusting the gas valve 110850LTW7H030 See "Setting the gas/air ratio". 08/06/06 - 300008460-001-B MCR 24, 24/28 MI, 30/35 MI, 34/39 MI...
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Page 46: Maintenance
Checking the hydraulic pressure Cut the gas supply to the boiler. Minimum pressure: 1 mbar. Add water to the installation if necessary. Carry out a visual check for the presence of any water leaks. MCR 24, 24/28 MI, 30/35 MI, 34/39 MI 08/06/06-300008460-001-B... - Page 47 The ignition cable is fixed to the ignition electrode and therefore may not be removed. Check the condensates discharge siphon; it must be filled with clean water up to the mark. 08/06/06 - 300008460-001-B MCR 24, 24/28 MI, 30/35 MI, 34/39 MI...
- Page 48 See "Maintenance". Check the flame through the viewport; it must be stable and blue in colour, with orange particles around the edges of the burner (Full load). MCR 24, 24/28 MI, 30/35 MI, 34/39 MI 08/06/06-300008460-001-B...
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Page 49: Maintenance
Checking the ignition electrode / ionisaton sensor - Dismantle the electrode pin and the earth cable. - Unscrew the 2 screws. Remove the unit. - Clean or replace the ignition electrodes. 08/06/06 - 300008460-001-B MCR 24, 24/28 MI, 30/35 MI, 34/39 MI... - Page 50 - Descale the exchanger in order to maintain its performance levels. - Clean the inside of the heat exchanger using a stiff brush (optional). MCR 24, 24/28 MI, 30/35 MI, 34/39 MI 08/06/06-300008460-001-B...
- Page 51 (See:Spare parts centre). Rinse with clean water. Remove the flow switch. If necessary, clean or replace the flow switch. Rinse with clean water. Cut the power supply to the boiler. 08/06/06 - 300008460-001-B MCR 24, 24/28 MI, 30/35 MI, 34/39 MI...
- Page 52 Top up the installation with water. Restart the boiler. Measure the O or CO content in the flue gases. Check the ionisation current. Check the seals on the gas and water connections. MCR 24, 24/28 MI, 30/35 MI, 34/39 MI 08/06/06-300008460-001-B...
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Page 53: Electrical Diagram
Flow switch Green Pump GN/YW Green/Yellow Inverter valve Grey Gas valve Limiting thermostat White Outside sensor (optional) Yellow Return sensor - - - - not supplied / Not connected 08/06/06 - 300008460-001-B MCR 24, 24/28 MI, 30/35 MI, 34/39 MI... -
Page 54: Breakdown Codes
*When the sensors have been removed, replace the sensors a maximum of 40 mm from the thermal exchanger of the copper pipes. Operating diagrams: Temperature sensor/Resistance Resistance in ohm Temperature (°C) Temperature sensor/Resistance-Operating diagrams MCR 24, 24/28 MI, 30/35 MI, 34/39 MI 08/06/06-300008460-001-B... - Page 55 If the pump still does not work, it is faulty and must be changed. Pump operation: Poor Too much air When the pump is switched off, vent the system Bad pump wiring Check the electrical connections 08/06/06 - 300008460-001-B MCR 24, 24/28 MI, 30/35 MI, 34/39 MI...
- Page 56 If there is a problem, contact your fitter, specifying the alarm code Modify parameters Parameter checks Automation parameters If there is a problem, contact your fitter, specifying the alarm code Factory setting Automation parameters Replace the control panel if it is faulty MCR 24, 24/28 MI, 30/35 MI, 34/39 MI 08/06/06-300008460-001-B...
- Page 57 - Boiler operating mode selected (St: XX) - The outlet temperature (T1:XX) and the return temperature (t2:XX) when the error occured To get acces to the error memory, the acces code 12 must be entered. 08/06/06 - 300008460-001-B MCR 24, 24/28 MI, 30/35 MI, 34/39 MI...
- Page 58 - Press the + key: Set parameter 0 to 1. - Press the key to delete the errors from the error memory. - Press the key times to exit the error memory. MCR 24, 24/28 MI, 30/35 MI, 34/39 MI 08/06/06-300008460-001-B...
- Page 59 Sub-assemblies such as motors, pumps, electric valves etc. are guaranteed only if they have never been dismantled. 08/06/06 - 300008460-001-B MCR 24, 24/28 MI, 30/35 MI, 34/39 MI...
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Page 60: Spare Parts - Mcr 24, 24/28 Mi, 30/35 Mi, 34/39 Mi
Spare parts - MCR 24, 24/28 MI, 30/35 MI, 34/39 MI 08/06/06 - 300008460-002-B to order a spare part, it is imperative to give the code number shown on the list, against the number of the part required. MCR 24 DE DIETRICH THERMIQUE S.A.S. - Page 61 MCR 24/28 MI, 30/35 MI, 34/39 MI 08/06/06 - 300008460-001-B MCR 24, 24/28 MI, 30/35 MI, 34/39 MI...
- Page 62 Pre-mixing chamber hood 4009 S100224 Display 2028 S62719 Gasket 4009 S100243 Front panel (Control panel) 2029 S62742 Burner hood 4010 S33974 Screw M4x16 (10 pieces) 2030 S62729 Bleed valve connection (5 pieces) MCR 24, 24/28 MI, 30/35 MI, 34/39 MI 08/06/06-300008460-001-B...
- Page 63 Screw TORX M4x10 (15 pieces) 1003 S62723 Fastening plate: Exchanger (30 kW) 2025 S58730 O-ring 1003 S100071 Assembly mounting: Heating body 2026 S62733 Pressure gauge (0 to 4 bar 08/06/06 - 300008460-001-B MCR 24, 24/28 MI, 30/35 MI, 34/39 MI...
- Page 64 S58766 Nut (15 mm) (10 pieces) 4004 S100219 Cable conductor 5032 S62715 Flat joint (diameter 14.5x8.5x2) (10 pieces) 4005 S62737 Front panel (Control panel) 5033 S62781 Flowrate detector (*1))1.2 l rpm) MCR 24, 24/28 MI, 30/35 MI, 34/39 MI 08/06/06-300008460-001-B...
- Page 65 Code no. Description 5034 S100246 Disconnector 5035 S100232 Gasket 8.4x5x1.6 (10 pieces) 5036 S100231 M10x1x5 nut (10 pieces) 08/06/06 - 300008460-001-B MCR 24, 24/28 MI, 30/35 MI, 34/39 MI...
- Page 66 MCR 24, 24/28 MI, 30/35 MI, 34/39 MI 08/06/06-300008460-001-B...
- Page 67 08/06/06 - 300008460-001-B MCR 24, 24/28 MI, 30/35 MI, 34/39 MI...
- Page 68 DE DIETRICH THERMIQUE S.A.S. DE DIETRICH HEIZTECHNIK www.dedietrich.com www.dedietrich.com Direction des Ventes France Am Concorde Park 1 - B 4 / 28 57, rue de la Gare A-2320 SCHWECHAT / WIEN F- 67580 MERTZWILLER +43 (0)1 / 706 40 60-0...