Motan MKDENS 25 Technical Instructions
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Motan MKDENS 25 Technical Instructions

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Köber LTD
Vaduri Branch Office
TECHNICAL INSTRUCTIONS
FOR INSTALLATION/ USAGE/ MAINTENANCE
Type: C13SPV36MEF
Type: C14SPV25MEF
1798
0086
KÖBER LTD DUMBRAVA ROSIE - VADURI BRANCH OFFICE
Branch Office:Vaduri, No. 280, Alexandru cel Bun, Neamt District, Postal Code 617511, Romania
Phone : +40.233.24.17.46, 233.24.19.33, Fax : +40.233.24.19.29
E-mail :
, www.motan.ro
office.vaduri@kober.ro

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  • Page 1 FOR INSTALLATION/ USAGE/ MAINTENANCE Type: C13SPV36MEF Type: C14SPV25MEF 1798 0086 KÖBER LTD DUMBRAVA ROSIE - VADURI BRANCH OFFICE Branch Office:Vaduri, No. 280, Alexandru cel Bun, Neamt District, Postal Code 617511, Romania Phone : +40.233.24.17.46, 233.24.19.33, Fax : +40.233.24.19.29 E-mail : , www.motan.ro office.vaduri@kober.ro...
  • Page 2 KÖBER L.T.D. VADURI BRANCH DUMBRAVA ROSIE - implements and certifies the Quality Management System, according with standard EN ISO 9001:2008. This certificate assure the conformity of our products. The quality of our product is the result of permanent investments in implementing of the highest development and research technology, profesionalism, experiency and dedication of employers.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS: page DESCRIPTION OF THE APPLIANCE GENERAL DESCRIPTION BOILER MODELS GENERAL INSTRUCTIONS CONCERNING THE BOILER SAFETY BOILER SPECIFICATION 2.1 TECHNICAL DATA MAIN COMPONENTS 2.2.1 BURNING SYSTEM (see picture no.1) 2.2.2 HYDRAULIC SYSTEM ( see picture no. 2.2.3 CONTROL SYSTEM ( see picture no.4 MOUNTING AND INSTALLATION INSTRUCTIONS ACCORDANCE WITH THE CURRENT REGULATIONS...
  • Page 4 TABLE OF CONTENTS: 6.5. ROUTINE SERVICING 6.6. STORAGE, MARKING, DOCUMENTS, PACKING, TRANSPORT 6.7 QUALITY AND GURANTEE CONDITIONS 6.8 RESPONSIBILITIES DURING THE WARRANTY PERIOD 7. APPENDIX: LISTS AND PLANS FOR MOUNTING AND INSTALLATION Plan 1 - The couplings arrangement Plan 2 - Hydraulic diagram Plan 3 - The couplings diagram for MKDens36 Plan 4 - The couplings diagram for MKDens25...

  • Page 5: Description Of The Appliance

    1. DESCRIPTION OF THE APPLIANCE SATEFY MEASURES PLEASE RESPECT STRINGENTLY THE INFORMATIONS OF TECHNICAL INSTRUCTION. OTHERWISE, CAN APPEAR FIRE AND BLOW UP RISK WHICH CAN LEAD AT MATERIAL PREJUDICE, PERSON'S INJURY OR EVEN DYING. VERY IMPORTANT! IT IS THE LAW THAT ALL GAS APPLIANCES ARE INSTALLED BY A COMPETEND PERSON.

  • Page 6: General Description

    1.1 GENERAL DESCRIPTION The Motan MKDENS wall mounted gas boiler is a fuel gas consuming appliance, that has the role of turning the fuel gas power into thermal energy through burning. This appliance operates unsupervised due to its protection and control systems.

  • Page 7: Boiler Models

    1.2 BOILER MODELS Accesories Maximum Output DHW instant TYPE Expansion production [kcal/h] Pump vessel 30954 C13SPV36MEF 21496 C1 SPV MEF MODEL NUMBER CODING C13, C14 - model code - with instant delivery of hot water (without external water tank) - with circulation pump - with sealed expansion vessel 36, 25 - maximum gross output in kW...

  • Page 8: General Instructions Concerning The Boiler Safety

    1.3 GENERAL INSTRUCTIONS CONCERNING THE BOILER SAFETY ! This manual is part of the product and must be given to the user. The commissioning and service operations is made only by authorized service engineers. Read this manual carefully and keep it carefully for a further application by the user and by the mounting and installing authorized personnel.

  • Page 9: Boiler Specification

    2 BOILER SPECIFICATIONS 2.1 TECHNICAL DATA Commercial Name MKDens 25 MKDens 36 Type C14SPV25MEF C13SPV36MEF Gas category I2H (20) I2H (20) Draught type Forced Forced Combustion chamber Closed Closed Energy Efficiency Band (natural gas) Nox class (natural gas) Net efficiency at rated output (natural gas) 96.7%...

  • Page 10: Main Components

    Dimensions (mm) Depth Width Height With mounted elbow Expansion vessel Domestic Hot Water Temperature 30 - 60°C 30 - 60°C DHW flow rate 14.3 l/min 20.6 l/min t = 25°C 10.2 l/min 14.7 l/min t = 35°C 11.5 l/min t = 40°C 8 l/min Domestic cold water pressure 0.2 - 8bar...

  • Page 11: Hydraulic System

    6. Combustion chamber (position 4 picture1). It is sealed and has a cylindrical shape. It is placed inside the main heat exchanger (annular shaped). To reduce the heat leakages, both front and rear walls of the combustion chamber are isolated indoor with heat insulating material (ceramics fibers). On the front wall is placed the burner.
  • Page 12 2. Circulating pump (position 7 picture 2) It is designed to supply the necessary water flow in the primary circuit in both modes Central Heating and Domestic Hot Water. Also, it must be aware of the hydraulic features of the pump, presented in the figure 1: [ ³...

  • Page 13: Control System (See Picture No.4)

    2.2.3 CONTROL SYSTEM (see picture no.4) Is made by the following elements: 1. Boiler control unit (position 12 picture 4) It monitors and controls the operation of the boiler. 2. CH flow and return temperature probes (position 13 picture 4) Send temperature signals (CH flow and return) to the electronic board.

  • Page 14: Mounting And Installation Instructions

    1 0. Flue gases temperature probe (position 20 picture 4) It cuts off the fuel gas supply when flue gases temperature exceeds 90°C. It is placed in the flue gases collector, which is located above the main heat exchanger. 11. External probe (optional) It ensures an optimum temperature of the water from the heating installation, when the external temperature is in the range -20...20°C.

  • Page 15: Mounting The Boiler On The Wall

    3.2 MOUNTING THE BOILER ON THE WALL The boiler is designed to be use in integrated in heating systems in closed chambers. It is forbidden to mount the boiler outside the building. The appliance has the protection level IP 40; ATTENTION! Improper climate conditions of installing the boiler automaticcaly conduct to warranty lose.
  • Page 16 The connection of the boiler to the electric power supply of the building must allow a complete isolation of the boiler in case an intervention must be performed, except the disconnection of the ground. The external connections must be in accordance with the current regulations.
  • Page 17 THE PRIMARY SYSTEM (HEATING) The boiler is connected to the heating installation by using the A and E couplings (see plan 2). The maximum working pressure is 3 bar. The installation radiators for the condensing boilers must be sized with at lest 6% greather than conventional boilers (where the turn/return temperature difference is 200C).
  • Page 18 IT IS MANDATORY TO INSTALL A MECHANICAL IMPURITIES FILTER ON THE PRIMARY HEATING SYSTEM (RETURN). IT IS FORBIDDEN TO USE AN EMPTY BOILER OR A BOILER PARTIALLY FILLED WITH WATER. USING AN EMPTY BOILER OR A BOILER PARTIALLY FILLED WITH WATER MAY LEAD TO EXPLOSIONS.
  • Page 19 IN CASE OF CONCENTRIC FLUS, AIR AND FLUE GASES DUCTS MUST HAVE MAXIMUM 3m IN LENGTH (WITHOUT THE FIRST ELBOW). IN CASE OF TWIN FLUE, AIR AND FLUE GASES DUCTS MUST HAVE MAXIMUM 4m LENGTH (WITHOUT THE FIRST ELBOW). CONCENTRIC FLUE SYSTEM (figure 2) Consist of an elbow, the flue gases duct, the air duct and afferent gaskets.
  • Page 20 IT IS COMPULSORY FOR THE AIR AND FLUE GASES DUCTS TO HAVE AN ASCENDING SLOPE OF 3% (APPROXIMATELY 2°) IN ORDER TO FORCE THE CONDENSATE TO FLOW BACK TOWARD THE COMBUSTION CHAMBER. A 90 degree flue elbow reduces the total duct length by 0,5 m. Under no circumstances the flue length (including allowances for extra bends) must not exceed 3m.

  • Page 21: Condensate Drainage (See Figure No.4)

    IT IS COMPULSORY FOR THE AIR AND FLUE GASES DUCTS TO HAVE A SLOPE OF 3% (APPROXIMATELY 2°) DESCENDING, RESPECTIVELY ASCENDING. A 90 FLUE ELBOW REDUCES THE TOTAL DUCT LENGTH BY 0,5m. UNDER NO CIRCUMSTANCES MUST THE LENGTH (INCLUDING ALLOWANCES FOR EXTRA BENDS) EXCEED 5m. 3.4 CONDENSATE DRAINAGE - see figure 4 The condensate resulted from the water contained in the burning gases is drained through a pipe specially designed for this purpose.

  • Page 22: Putting Into Service

    In this case, the end-user will pay all taxes to the authorized personnel for putting into service. The putting into service and maintenance of the “MOTAN” boilers during the warranty period must be performed only by personnel authorized (according to local laws) and certified by KOBER LTD Turturesti, Vaduri Branch.

  • Page 23: Commissioning

    In this case, the end-user will pay all taxes to the authorized personnel for putting into service. The commissioning and maintenance of the “MOTAN” boilers during the warranty period must be performed only by personnel authorized (according to local laws) and certified by KOBER LTD Turturesti, Vaduri Branch.

  • Page 24: Verify The Power Supply To The Boiler

    5.1 VERIFY THE POWER SUPPLY TO THE BOILER Verify with a multimeter: the polarity, the grounding, grounding and short circuit resistance. The gas boiler must be connected at monophase network by 230V/50Hz through 5A fast-blowing fuse, with grounding. The electrical supply must be grounded and must keep into accout the semantic of colour: brown phase;...

  • Page 25: Connect An Room Thermostat And An External Probe

    5.3 CONNECT AN ROOM THERMOSTAT AND AN EXTERNAL PROBE ROOM THERMOSTAT The fitting of a room thermostat is made on one of inside walls. Don't mount near heat sources, in front of sun, near cold water pipework/ hot water pipework or near places with air current.
  • Page 26 The positions of points A, B, C and D, which define this curve, are determined as follows: - The position of point A: is determined by the value of system outgoing water set-point; - The position of point B: is determined by the value of the minimum CH set point;...

  • Page 27: Verify The Gas Type

    5.4 VERIFY THE GAS TYPE Request from the combustible supplier the gas type and Wobe coefficient. Superior/ Inferior Wobbe coefficient is equal to the gross calorific value of the gas in British thermal units per cubic foot at standard temperature and pressure divided by the square root of the specific gravity of the gas.

  • Page 28: Initial Lighting

    5.8 INITIAL LIGHTING DO NOT operate the boiler without water. Check that all external controls are calling for heat. Press the on/off button for start the boiler. Press the winter/summer button for start on Central Heating mode. Set the Central Heating temperature and the Domestic Hot Water temperature at maximum value.

  • Page 29: Usage Instructions For The End User

    The autorized person must explain to the user about the frost protection. Explain the user that if he is leaving home, in cold season, for a longer period of time, it is recommended to empty the heating circuit and avoid installation freezing.
  • Page 30 User The control panel keys functions in mode are presented in table 1. Table 1 FUNCTION (+) CH: On the first pressing, the set value for the outgoing water S W 6 temperature is displayed. Next pressings of the key lead to the increasing of this set value.
  • Page 31 Figure no. 7. The LCD display When the Boiler Control Unit (BCU) is powered on, the user wait 25 seconds before any commands can be processed. During this period, the symbol “---” is permanently being dispayed and symbol 11 is blinking. After 25 seconds on the LCD display appear the symbols indicated in figure no.7.

  • Page 32: Boiler Control Unit - Power On

    Table 3 AREA EVENT DESCRIPTION Standby / normal operation System water pressure expressed in bar + “b” Pressing SW6 / SW3 “Setp” Pressing SW5 / SW1 “Setp” Error “FO” + error code (see table 4) Pressing SW7 “In” + information index (see table1) Chimney-sweep at the “H”...

  • Page 33: Central Heating" Mode (Symbol 8 On)

    During winter, in case of power off or other possible situations when temperature can drop below the freezing point (0°C) for more than 2-3 hours, the water from both CH and DHW circuits must be drained. The boiler will be disconnected from both power and gas supply networks.

  • Page 34: The Boiler Shutting-Down In Safety Conditions

    6.1.6 THE BOILER SHUTTING-DOWN IN SAFETY CONDITIONS In case the end user establishes that the appliance has an abnormal running, if the error codes keep displaying or if the appliance manifestations can not be understood, he has the obligation of shutting-down the boiler as soon as possible and in maximum safety conditions.

  • Page 35: Errors Detection

    6.3 ERRORS DETECTION The information sent by sensors and safety devices to the BCU is used in the detection of malfunctions. In these cases, the error codes are displayed on the LCD. These error codes are presented in Table 4. Table 4 ERROR DESCRIPTION...

  • Page 36: Delivery The Boiler To The End User After Installation

    6.4 DELIVERY THE BOILER TO THE END USER AFTER INSTALLATION The User must be advised (and demonstrated if necessary) of the following important points: 1. How to light and turn off the boiler in safety conditions through the verify of the following components: the main supply and polarity respecting;...

  • Page 37: Storage, Marking, Documents, Packing, Transport

    6.6 STORAGE, MARKING, DOCUMENTS, PACKING, TRANSPORT STORAGE The gas boiler's storage is made in dry places and safe by natural phenomena and chemical materials. MARKING The product have label on the package (packaging label) and on interior part of frontal lid (data badges). On the packaging label are written the following dates: The manufacturer company The name of the product, type and size...

  • Page 38: Quality And Gurantee Conditions

    6.7 QUALITY AND GUARANTEE CONDITIONS KOBER LTD TURTURESTI VADURI BRANCH OFFICE, as manufacturer, guarantees the boiler good running if the following conditions are provided: The correct installation and setting by the authorized personnel. The yearly examinations are achieved on beneficiary demand and at the expense of the beneficiary, the first year examination is compulsory to maintain the guarantee for the first three years of usage.

  • Page 39: Responsibilities During The Warranty Period

    6.8 RESPONSABILITIES DURING THE WARRANTY PERIOD MKDens36 Boiler, type C13SPV36MEF MKDens25 Boiler, type C14SPV25MEF MALFUNCTIONS THAT REFER TO THE MANUFACTURER’S RESPONSABILITY POSSIBLE COMPONENT DESCRIPTION ERROR CODE Pressure sensor A defective running FO 01 Temperature Broken cables or defective probes: probes - CH flow probe (outgoing water) FO 03 - CH return probe...
  • Page 40 MALFUNCTIONS THAT REFER TO THE RESPONSABILITY OF THE UTILITIES PROVIDERS POSSIBLE REMEDY DISTURBED POSSIBLE CAUSE DESCIPTION ERROR CODE SOLUTION SYSTEM Electrical power supply deficiency The boiler does not Call the electric (inadequate electrical circuit, Electrical run, there is no blown safety fuse) power supplier.

  • Page 41: Appendix: Lists And Plans For Mounting And Installation

    7. APPENDIX: LISTS AND PLANS FOR MOUNTING AND INSTALLATION Plan 1 - the couplings arrangement of the Wall Mounted Condensing Gas Boiler with Forced Draught COUPLING DIMENSION 1. DCW inlet 1/2” - external thread 2. DHW outlet 1/2” - external thread 3.

  • Page 42: Plan 2 - Hydraulic Diagram

    7. APPENDIX: LISTS AND PLANS FOR MOUNTING AND INSTALLATION Plan 2 - hydraulic diagram of the Wall Mounted Condensing Gas Boiler with Forced Draught Legend: Modulating fan Primary heat exchanger 15 System water pressure sensor Secondary heat exchanger 16 CH flow temperature probe Ignition electrode 17 Overheating thermostat Ionization electrode...

  • Page 43: Plan 3 - The Couplings Diagram For Mkdens36

    7. APPENDIX: LISTS AND PLANS FOR MOUNTING AND INSTALLATION Plan 3 - The couplings diagram for MKDENS36 boiler RESET 3/4” 3/4” 3/4” 1/2” 1/2” Plan 4 - The couplings diagram for MKDENS25 boiler RESET 3/4” 3/4” 3/4” 1/2” 1/2”...
  • Page 44 7. APPENDIX: LISTS AND PLANS FOR MOUNTING AND INSTALLATION CONCENTRIC FLUE SYSTEM Lmin=1m; Lmax=3m TWIN FLUE SYSTEM Lmin=1m; Lmax=5m Lmin=1m; Lmax=5m...

  • Page 45: Plan 5A, 5B - Typical Flue System Applications

    7. APPENDIX: LISTS AND PLANS FOR MOUNTING AND INSTALLATION Plan 5a, 5b - Typical flue system applications for the Wall Mounted Condensing Gas Boiler with forced draught Plan 5a 7. APPENDIX: LISTS AND PLANS FOR MOUNTING AND INSTALLATION Plan 5b...

  • Page 46: Plan 6 - Terminal Clearances For Flue Installation

    7. APPENDIX: LISTS AND PLANS FOR MOUNTING AND INSTALLATION Plan 6 - Terminal Clearances for flue installation UNDER CAR PORT, etc. HORIZONTAL FLUES...

  • Page 47: Plan 7 - Lists And Plans For Mounting And Installation

    Mass flow rate = 13.3 kg/h 4. CO2 content = max. 8.9% 5. The MKDENS 36 and MKDENS 25 boilers including connecting ducts are suitable for connection to a natural draft chimney only. 6. Characteristics of the common duct system:...
  • Page 48 7. APPENDIX: LISTS AND PLANS FOR MOUNTING AND INSTALLATION Details for C83 Flue System 1. Nominal combustion products temperature = 75 C 36 kW boiler 25 kW boiler Combustion fan - FIME Combustion fan - EBM Mass flow rate = 60.3 kg/h Mass flow rate = 57.1 kg/h Mass flow rate = 43.5 kg/h 2.

  • Page 49: Plan 8 - Electrical Diagram

    7. APPENDIX: LISTS AND PLANS FOR MOUNTING AND INSTALLATION Plan 8 - Electrical diagram for the Wall Mounted Condensing Gas Boiler with forced draught FLUX DRIVER RS 232 FL/TB/VP TRASD J7 J17J1 J18 SYMBOLS: J14 (HIGH VOLTAGE) 1: Board power supply (N) - Neutral 2: Board power supply (L) - Phase (230 VAC - 50 Hz) 3: Circulator (CI) - Neutral 4: Circulator (CI) - Phase...
  • Page 50 7. APPENDIX: LISTS AND PLANS FOR MOUNTING AND INSTALLATION Plan 8 - Electrical diagram for the Wall Mounted Condensing Gas Boiler with forced draught J23 (LOW VOLTAGE) 1: External probe (Se) 2: External probe (Se) J26 LOW VOLTAGE) Not used J3 (LOW VOLTAGE) 1: Fan driver GND 2: Fan driver PWM regulation signal...

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Mkdens 36

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