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1. Hearth service door. 2. Primary air supply valves. 3. Internal cast iron door. 4. Hearth.
5. Decorative thermal insulation panels. 6. Fuel loading door. 7. Body. 8. Top loading cover. 9. Cooling
coil installation location *. 10. The pipe of the safety valve (G1). 11. Boiler lifting loop. 12. Service cover.
13. Ignition damper. 14. The inlet water pipe. 15. Flue with smoke draught damper. 16. Thermometer **.
17. Air draught regulator. 18. Pressure gauge **. 19. Removable spiral turbulators (16 pcs). 20. Fireclay
bricks. 21. Combustion chamber. 22. Secondary air supply valve. 23. Secondary air pipe. 24. Return water
pipe. 25. Water drain pipe. 26. Grounding screw. 27. Clean hole cover. 28. Bottom thermal insulation
panel. 29. Fire grate. 30. Ash drawer.
* Can be installed if purchased separately.
** The boiler is equipped with a thermometer and pressure gauge (0-120 °C, 0-4 bars) which are
indicative and do not replace the mandatory units for the heating devices.
The boiler body (7) (see picture 1), welded from special steel sheets, has cavities
in which water is heated. Boiler exterior is covered with decorative thermal insulation
shields. Boiler front has air draught regulator (17) controlling the primary air supply
valve (2), thermometer (16), pressure gauge (18) hearth service door (1), covering
inner cast iron door (3). Fuel loading chamber is closed by the door (6).
Inside the body, ignition damper is installed (13), opening the path for the smoke
to get directly to the chimney, it is used for boiler ignition and adding extra fuel; as
well as the fire grate (29). Under the fire grate, ash collection drawer is installed. In
the combustion chamber, fireclay bricks (12) are arranged as well as secondary air
pipe with openings for the air (16) maintaining high combustion temperature and
combusting CO. For more uniform distribution of heat between the heat exchanger
walls, removable turbulators (19) (16 pcs.) are installed.
In the boiler sidewalls, there are secondary air control valves (22) and ignition
damper adjustment handle installed.
In the back of the boiler, there is the water drain (25), return (24) and output (13)
water pipes, threaded G2-B, and the flue pipe with the smoke draught damper (15).
On the boiler, separately purchased safety valve (10) is installed, having an outer
one inch (G1) pipe thread.
In the boiler side wall, there is a flanged connector (9) used to install the boiler
cooling loop.
It is prohibited to change boiler construction without permission
- 6 -
Picture 1.
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