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INSTALLATION AND OPERATION MANUAL
CONTACT INFORMATION OF THE FACTORY:
MACHINERY PLANT "ASTRA" AB
ULONŲ G. 33, LT-62161 ALYTUS, LITHUANIA
TEL.: +370 315 75449
FAX: +370 315 52265
E-MAIL: INFO@ASTRA.LT
WWW.ASTRA-GAS.LT
ASTRA MACHINERY PLANT AB • ANNO 1929
HEATING BOILERS
Astra G-18 E
Astra G-25 E
Astra G-32 E
Astra G-40 E
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Summary of Contents for Astra G-18 E
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Page 1: Heating Boilers
ASTRA MACHINERY PLANT AB • ANNO 1929 HEATING BOILERS Astra G-18 E Astra G-25 E Astra G-32 E Astra G-40 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... -
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 G-18E, Astra G-25E, Astra G-32E, and a maximal response pressure of 3 bar for the boiler Astra G-40E (please see Chapter 5, “Requirements for connection of the boiler to the heating system”). -
Page 4: Technical Description
HEATING BOILERS: Astra G-18 E, Astra G-25 E, Astra G-32 E, Astra G- 40 E 2. TecHnIcal DescRIPTIon • General View of the Boiler fig. 1 General view of the boiler A – front view; B – rear 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 G-18e astra G-25e astra G-32e astra G-40e firewood, kW Nominal heat output wooden briquettes, kW Class of boiler according to EN 303-5 Class of protection against electric impact... -
Page 6: Ceramic Elements Of The Boiler
HEATING BOILERS: Astra G-18 E, Astra G-25 E, Astra G-32 E, Astra G- 40 E • ceramic elements of the Boiler The boiler has ceramic elements of three types: ceramic burner 1, ceramic chopper 2 and two 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 –... -
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 G-18 E, Astra G-25 E, Astra G-32 E, Astra G- 40 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. - 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
Type of boiler Pressure relief valve Connection diam. does not exceed ½”, set opening pressure 2 bar Astra G-18E, Astra G-25E , Astra G-32E Pressure relief valve Connection diam. does not exceed ¾”, set opening pressure 3 bar Astra G-40E 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
Connect the wires of the ventilator cable lead through a hole in the rooftop cover of the boiler to the terminals of the ventilator. For boilers Astra G-40E: unpack the ventilator, screw its case on at the ventilator installation bed 10 (Fig. 1) using the existing bolts and check the stiffness of the connection. -
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 G-18 E, Astra G-25 E, Astra G-32 E, Astra G- 40 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 G-18e astra G-25e astra G-32e astra G-40e length of firewood, mm 310 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 G-18 E, Astra G-25 E, Astra G-32 E, Astra G- 40 E • 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 of the thermal fuse, otherwise called the maximum boiler temperature emergency thermostat, is to switch off the boiler ventilator if water temperature in the boiler exceeds the maximum permissible 95°C... -
Page 17: Preparation For Firing
INSTALLATION AND OPERATION MANUAL temperature, the dot does not appear. The regulator allows L1, N- reguliatoriaus maitinimas; Rear panel of the regulator KR-4.3D adjustment of the temperature within the range of 65-85°C. - ventiliatoriaus maitinimas; - įtampa į ventiliatorių; Lamp 3 “Firing on” indicates the active status of the boiler. - įtampa į... -
Page 18: Kindling Procedure Of The Boiler
HEATING BOILERS: Astra G-18 E, Astra G-25 E, Astra G-32 E, Astra G- 40 E • kinDlinG ProceDure of the Boiler Before kindling the boiler, check whether all requirements indicated in the section 1 are executed. Open the damper of the upper flue 19 by pulling the handle 3 (Fig. 1) towards yourself. Open the door of the upper combustion chamber, put dry smaller kindling wood pieces and paper on the ceramic bottom so that the paper protrudes into the lower combustion chamber through the rectangular opening of the ceramic burner 1 (Fig. -
Page 19: Regulation Of The Boiler Temperature
INSTALLATION AND OPERATION MANUAL fuel chamber’s capacity. Open the upper flue damper 3 (Fig.1) and both boiler doors, put the wood and paper inside. Kindle the paper, make sure that the firing starts and close the upper door. After the temperature of water in the boiler reaches 45° C, close the damper and the lower door and turn on the ventilator. -
Page 20: Description Of The Smoke Temperature Sensor Function
• 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 • emerGency shut Down of the Boiler If for some reason you must immediately shut down the operating boiler, by any means do not pour water on the kindling wood! The boiler can burst! It is very convenient to use dry sand for emergency extinction. There should be ~50kg of dry sand in the boiler room. Sand not only isolates burning firewood well from the air oxygen but also cools down the burning zone. -
Page 22: Acceptance Certificate
HEATING BOILERS: Astra G-18 E, Astra G-25 E, Astra G-32 E, Astra G- 40 E • the boiler is connected to the heating system and operated following the requirements of this operation manual; • the duration of the warranty period for the boiler is the following: - for the heat exchanger of the boiler against leaking –... -
Page 23: Boiler Installation Protocol
INSTALLATION AND OPERATION MANUAL boIleR InsTallaTIon PRoTocol boiler was installed by: Company (technician): ................................... Address: ........................................Telephone:......................................Installation date: ....................................Installation data: Height of the chimney: ..................................Diameter of the flue: ..................................... Draught of the chimney: ..................................Other information concerning installation: ...................................................................... -
Page 24: Declaration Of Conformity
Manufacturer: Machinery plant “Astra” AB address: Ulonu g. 33, 62161 Alytus, Lithuania Product designation: heating boilers Astra G-18E, Astra G-25E, Astra G-32E, Astra G-40E 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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