Karmek KK IDRO Operating And Maintenance Handbook

Pellet boiler

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PELLET BOILER

KK IDRO

OPERATING AND MAINTENANCE HANDBOOK

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Page 1 PELLET BOILER KK IDRO OPERATING AND MAINTENANCE HANDBOOK...
Page 2 Karmek S.R.L. PLEASE NOTE: Karmek reserves itself to carry out unsubstantial changes to the boiler’s components, which may not be reported in the present handbook, those being of small entity. Occasional appearance changes from the flyers are due to ordinary seasonal updates.
Page 3 A. GENERAL INFORMATION a.1 General safety rules a.2 Technical features a.3 Accessory equipment a.4 Optional equipment a.5 Identity plate a.6 Guarantee a.7 Suitable fuel a.8 Ordering spares B. INSTALLATION INSTRUCTIONS b.1 Initial warnings b.2 Moving and transporting b.3 Positioning b.4 Installing the flue gas outlet b.5 Installing the combustion air inlet pipe b.6 Connecting to the power supply b.7 Connecting to the waterworks...
Page 4 d.5 General switch d.6 Circulator d.7 Expansion vessel d.8 Transducer d.9 Fumes probe d.10 Room probe d.11 Safety valve d.12 Air valve d.13 Sparking plug d.14 Pressurestat E. WASTE MATERIAL F. ORDINARY CLEANING AND MAINTENANCE f.1 Cleaning and maintenance by the customer f.2 Periodic maintenance by the Assistance Center G.
Page 5: General Safety Rules
A. GENERAL INFORMATION a.1 General safety rules ATTENTION PLEASE!!! You can never be too cautious: before the installation read and comply with these fundamental Rules:  All local regulations, including those referring to national and European laws, must be respected while installing the boiler. ...
Page 6 If anomalies in the functioning should occur, light the boiler again only after fixing the problem at its origin.  Karmek Srl is not responsible for inconveniences, tampering, breakages or any other damage due to non-observance of the instructions reported in this handbook.
Page 7: Technical Features
a.2 Technical features Nominal power: 24Kw Nominal thermic power: 20Kw  conventional efficiency and room irradiating:  15Kw H2o efficiency: Reduced thermic power: 9,7Kw  2,2Kw conventional efficiency and room irradiating:  7,5Kw H2o efficiency: Efficiency:  at nominal thermic power: ...
Page 8 1-Combustion air intake 2-Flue connection 3-H2O Lock 3/4” radiator 4-1/2” Waterworks connection 5-Radiator return 3/4” 6-Power supply...
Page 9: Accessory Equipment
The guarantee certificate, which we consigned to you when you purchased the boiler, must be sent to the producer firm Karmek Srl, 8 days after delivery date the latest; otherwise, the guarantee itself will no longer be valid. The estimated 24-months guarantee is valid exclusively when the installation and test are performed by an authorized Karmek assistance center.
Page 10: Suitable Fuel
Should you use different pellets from the ones recommended the boiler’s guarantee would expire. a.7 Ordering spares Exclusively authorized Karmek technical personnel must perform interventions of any entity. Please refer to the authorized assistance center or to your retailer for possible requests of spares.
Page 11: Installation Instructions
B. INSTALLATION INSTRUCTIONS b.1 Initial warnings The device must be installed on a pavement that presents an adequate burden capacity. If the existing building does not satisfy this requirement, appropriate measures (for instance a burden distribution plate) must be taken. The installation of the device must guarantee an easy access to clean the boiler, the exhausted gas piping and the flue.
Page 12 The information reported above is purely indicative for a correct installation; Karmek Srl is not responsible for what concerns the installation.
Page 13 Ø 100 Ø 100...
Page 14: Connecting To The Power Supply
b.5 Installing the combustion air inlet pipe For any described solution, two alternatives are possible: Draw the air directly from the outside through a piping (internal Ø 50mm; max length 1,5m), ● connected to the air inlet pipe on the back of the boiler. Draw the air directly from the installation room, given that in the proximity of the boiler an air ●...
Page 15 ELECTRICAL SCHEME...
Page 16 b.7 Connecting to the waterworks The pellet boiler is equipped with a heating water circuit, completed of circulator, safety valve, temperature probe and pressurestat. The heating circuit can be connected directly to the system (radiators and other exchangers), without any additional components. When connecting the boiler with the waterworks, you must be make sure that the equipped joints are compatible with those of the system;...
Page 17 C. OPERATING INSTRUCTIONS c.1 Initial warnings All regulations, included those referring to national and European laws, must be respected when installing the device. Do not use the device as an incinerator or in any other way than that for which it was designed. Do not use any fuel other than pellets.
Page 18 c.3 Display In the following scheme, we report the various functions of the display. IMPORTANT: If the temperature is not set within a few seconds, the display will automatically return to the previous screenshot.
Page 19: Room Temperature Setting
c.4 Lighting the boiler for the first time A skilled technician must perform the first lighting; otherwise, the guarantee will expire. c.5 Activating the boiler When the pellet tank is filled for the first time, you must remember that the screw tube, which feeds the grate, is completely empty;...
Page 20: Switching Off The Boiler
c.7 Switching off the boiler You can switch the boiler off by pushing the key n. 4 for a few seconds. The message “OFF” will appear on the display; the pellet flow is interrupted and the speed of the smoke intake motor will increase to lower the temperature.
Page 21 c.9 Managing the automatic lighting (chronothermostat) The automatic lighting function permits to weekly program the lighting and switching off of the boiler. Through this function, it is possible to set two daily lightings; it is also possible to avoid extra programming, by memorizing the set data.
Page 22 UT07: it modifies the weekdays you wish the Program 1 to be on. By pressing the “2” key you run over the days, and by pressing the “1” key you set or unset the program. UT08/UT09: they indicate the starting and stopping time of the Program 2, if the UT01 setting is set on the weekly mode (different from OFF) UT10: it modifies the weekdays you wish the Program 1 to be on.
Page 23 D. FUNCTIONS OF THE MECHANICAL AND ELECTRIC COMPONENTS d.1 Screw motor The screw motor drives the screw, which brings the pellets from the tank to the grate. d.2 Smoke intake motor The smoke intake motor is fixed on the extraction turbine on the back of the boiler. Its function consists of in taking and expelling the fumes that form in the combustion chamber.
Page 24: Expansion Vessel
d.6 Circulator It allows the water to circulate inside the heating waterworks. It activates automatically when the water reaches a temperature set in the electronic card. It is possible to increase or decrease the water door through three different speeds of the motor rotation. d.7 Expansion vessel The expansion vessel is a component of the water circuit of the boiler, and has a total...
Page 25: Safety Valve
d.11 Safety valve The safety valve operates in case of an anomalous increase of the pressure inside the system, by discharging the water until the pressure returns to the set value. Intervention pressure 3 bars. d.12 Air valve The air valve has the function to discharge possible air presences inside the system.
Page 26 F. ORDINARY CLEANING AND MAINTENANCE f.1 Cleaning and maintenance by the costumer Before lighting the boiler, it is advisable to clean the inside of the boiler. Open the door and vacuum the fire table. ● Remove the great, verify its cleanliness and clean the holes if necessary. ●...
Page 27: Power Failure Alarm
G. ALARMS DISPLAYING The alarms are displayed on the command panel; on the first line the message ALAR appears, while on the second line the typology of the anomaly is displayed. The occurring of an alarm provokes the immediate stop of the boiler, and only after solving the problem it is possible to restart the boiler, following the instructions already reported on this handbook.
Page 28: Solutions To Possible Problems
g.5 General thermostat alarm When the safety general thermostat surveys a temperature, which is higher than the reaction threshold, it operates to stop supplying the screw, and the system switches off. The boiler can again be turned on only after manually restarting the thermostat. g.6 Room thermocouple alarm It occurs in case of disconnection, damage or work interruption of the probe that surveys the temperature of the room where the boiler is positioned.
Page 29 PROBLEM POSSIBLE CAUSE SOLUTIONS The boiler does not light resistance does Check the electric cables and fuses. automatically. reach its temperature Damage exhausted Call assistance center resistance. substitute the resistance, if damaged Substitute the resistance. The pellets do not descend. IMPORTANT: unplug boiler...
Page 30 PROBLEM POSSIBLE CAUSE SOLUTIONS boiler Flue jammed or too long. paragraph about precociously jammed, installation of the boiler. presents Check if the flue is clean. irregular combustion. Check the quality of the pellets. Too humid pellets. Excessive quantity of pellets in the tank.
Page 32: Guarantee Conditions
GUARANTEE CONDITIONS: AT THE END OF EACH SEASON, IT IS OBLIGATORY TO HAVE THE AUTHORIZED ASSISTANCE CENTER PERFORM GENERAL CLEANING OF THE MODULE; OTHERWISE, THE GUARANTEE WILL EXPIRE.