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Related Manuals for Astra H-25E
Summary of Contents for Astra H-25E
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Page 1: Heating Boilers
ASTRA MACHINERY PLANT AB • ANNO 1929 HEATING BOILERS Astra H-25 E Astra H-32 E Astra H-45 E INSTALLATION AND OPERATION MANUAL CONTACT INFORMATION OF THE FACTORY: MACHINERY PLANT “ASTRA” AB ULONŲ G. 33, LT-62161 ALYTUS, LITHUANIA TEL.: +370 315 75449 E-MAIL: INFO@ASTRA.LT... -
Page 2: Table Of Contents
Table of conTenTs 1. safeTY ReQUIReMenTs .................. 3 2. TecHnIcal DescRIPTIon ................4 • General View of the Boiler ........................4 • Technical Data of the Boiler ......................... 5 • Ceramic Elements of the Boiler ......................6 • Turbulence Plates ..........................6 3. -
Page 3: Safety Requirements
1.5. A safety valve for no more than 2 bar response pressure should be fitted onto the boiler in the heating system for the boilers Astra H-25E, Astra H-32E, and a maximal response pressure of 2,5 bar for the boiler Astra H-45E (please see Chapter 5, “Requirements for connection of the boiler to the heating system”). -
Page 4: Technical Description
HEATING BOILERS: Astra H-25 E, Astra H-32 E, Astra H-45 E 2. TecHnIcal DescRIPTIon • GeneRal VIeW of THe boIleR fig. 1 General view of the boiler A – front view; B – lateral view; C – top view; D - section. -
Page 5: Technical Data Of The Boiler
INSTALLATION AND OPERATION MANUAL • TecHnIcal DaTa of THe boIleR Indicator value name of Indicator astra H-25e astra H-32e astra H-45e firewood, kW 31,5 Nominal heat output wooden briquettes, kW Boiler class according to EN 303-5 Class of protection against electric impact... -
Page 6: Ceramic Elements Of The Boiler
HEATING BOILERS: Astra H-25 E, Astra H-32 E, Astra H-45 E • ceRaMIc eleMenTs of THe boIleR The boiler has ceramic elements of three types: ceramic burner 1, ceramic chopper 2 and four ceramic segments 3 (Fig. 2). The chopper 2 must be moved to the back wall of the boiler chamber during operation of the boiler, segments 3 – resting upon... -
Page 7: Intended Use
INSTALLATION AND OPERATION MANUAL its upper supports. Then the tool can be removed and the next plate can be installed in a similar way. Turbulence plates decrease the temperature of the exhaust smoke. The boiler can be operated without the plates, but then greater losses of heat through the chimney will occur. -
Page 8: Installation
HEATING BOILERS: Astra H-25 E, Astra H-32 E, Astra H-45 E 5. InsTallaTIon • accUMUlaTIon TanK These solid fuel boilers are intended to be fully loaded during the operation; the most efficient mode of their exploitation is at the nominal or maximum heat output. It is advisable to install an accumulation tank of sufficient size in their proximity, which could accumulate the excessive heat. - Page 9 INSTALLATION AND OPERATION MANUAL fig. 5 Principle scheme of the house heating system including heat accumulation...
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Page 10: Requirements For Connection Of The Boiler To The Heating System
Technical characteristics Type of boiler Pressure relief valve Connection diam. does not exceed ½”, set opening pressure 2 bar Astra H-25E , Astra H-32E Pressure relief valve Connection diam. does not exceed ¾”, set opening pressure 2,5 bar Astra H-45E Thermometer-manometer Range of temperature 0-120°C, pressure 0 –... -
Page 11: Circuit Diagram Of The Boiler
INSTALLATION AND OPERATION MANUAL In order to guarantee natural water circulation of water in the boiler, the pipework between the boiler and the mixing valve in the line boiler–mixing valve–boiler is to be of the same diameter and correspond to the diameter of the connection pipes of the boiler. -
Page 12: Connection Of The Circulation Pump
HEATING BOILERS: Astra H-25 E, Astra H-32 E, Astra H-45 E • connecTIon of THe cIRcUlaTIon PUMP In order to insure a continuous flow of water, a circulation pump is to be installed in the system, on the return water pipe behind the mixing valve. -
Page 13: Installation Of The Boiler Room
INSTALLATION AND OPERATION MANUAL Δt and the intensity of the water flow circulating Difference Heating output, kW of water through the boiler. The boiler will fail to reach temperatures Water flow, l/min the desired temperature of the flow water if Δt, °c the returning water temperature is too cold or the circulation pump is too powerful. -
Page 14: Fuel
HEATING BOILERS: Astra H-25 E, Astra H-32 E, Astra H-45 E be no less than the external diameter of the smoke exhaust pipe of the boiler. The chimney liner can be round or oval. It is not recommended to use rectangular-shaped liner as, due to the temperature fluctuations, its walls deform, gaps appear at the element junction points, through which the condensate falls on the walls of the bricks chimney. -
Page 15: Operation
INSTALLATION AND OPERATION MANUAL The length of the firewood should be at least 5cm shorter than the length of the boiler combustion chamber. Type of boiler astra H-25e astra H-32e astra H-45e length of firewood, mm The recommended thickness of the wood logs is 100-150mm. Thicker pieces of firewood should be split at least once. Up to 15% of the fuel load can consist of fine wooden splinters and sawdust. -
Page 16: Rear Control Panel
HEATING BOILERS: Astra H-25 E, Astra H-32 E, Astra H-45 E of the front panel buttons, see “Electronic boiler regulator KR-4.3D” and “Boiler kindling procedure”. • ReaR conTRol Panel The following safety devices are installed in the rear control panel: thermal fuse 1 and electric fuse 2 (Fig. 10). The purpose... -
Page 17: Preparation For Firing
INSTALLATION AND OPERATION MANUAL the appropriate button must be pressed: “+” for increasing and “-” for decreasing the temperature. After several seconds after the last press of a button, the setpoint temperature is saved and the indicator returns to showing the measured temperature L1, N- reguliatoriaus maitinimas;... -
Page 18: Kindling Procedure Of The Boiler
HEATING BOILERS: Astra H-25 E, Astra H-32 E, Astra H-45 E chopper must be in contact with the rear wall of the boiler (Fig. 2). Place two ceramic segments 3 (Fig. 2) on the rear edge of the chopper so that they contact the rear wall of the boiler chamber. Another two segments should be placed at the front edge of the ceramic chopper. -
Page 19: Regulation Of The Boiler Temperature
INSTALLATION AND OPERATION MANUAL volume of the fire bed expands several times. This situation can occur if very dry and thinly cut wood gets loaded into the fuel chamber. Consequently, the volume of the fire bed increases rapidly during the burning process and soon a lack of air occurs, allowing the combustible gases to escape unburned through the chimney into the atmosphere. -
Page 20: Combustion Control
• DescRIPTIon of THe sMoKe TeMPeRaTURe sensoR fUncTIon The smoke temperature sensor is mounted in Astra boilers in order to: 1) help the controller achieve the optimal smoke temperature, 2) turn off the ventilator after firing in the boiler is accomplished, 3) turn off the circulation pump after the firing in the boiler is over. -
Page 21: Emergency Shut Down Of The Boiler
INSTALLATION AND OPERATION MANUAL Open the upper cap 8 for cleaning the flue (Fig. 1). Remove the turbulence plates from the flue by hooking them and pulling them out with the poker, then clean them using a scraper. Clean tar and scurf from combustion chambers and flue walls using a scraper and metal hog. -
Page 22: Warranty And Its Validity Terms
HEATING BOILERS: Astra H-25 E, Astra H-32 E, Astra H-45 E 3. Ventilator is Emergency thermostat has tripped, light of the Call representatives of the service company; switch not operating ventilator switch is off on after indication of the causes (see Chapter 6) Electronic regulator KR-4.3D or ventilator is faulty Replace... -
Page 23: Acceptance Certificate
INSTALLATION AND OPERATION MANUAL 10. accePTance ceRTIfIcaTe The heating boiler astra H- ......., serial No........,, conforms to the technical documentation and requirements of standard EN 303-5 and is approved as fit for operation. Manufacturing date 201 ....................L. S. -
Page 24: Warranty And Post-Warranty Repair Card
WaRRanTY anD PosT-WaRRanTY RePaIR caRD boiler repaired by: Company (technician): ................................... Address: ........................................Telephone: ......................................Repair date: ......................................Information on fault, works performed:................................................................................................................. Signature of the technician: .................................. boiler repaired by: Company (technician): ................................... Address: ........................................Telephone: ......................................Repair date: ...................................... -
Page 25: Declaration Of Conformity
Manufacturer: Machinery plant “Astra” AB address: Ulonu g. 33, 62161 Alytus, Lithuania Product designation: heating boilers Astra H-25E, Astra H-32E, Astra G-45E We declare that the above-mentioned products conform to the requirements of directives 97/23/EEC Article 2.3 and 2006/95 EEC.
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