Help and Downloads – Technical Documentation, Controller and Fan Manuals, etc.

The Pasat heater with an automatic fuel feeder – a retort burner – operates independently for 2-4 days (which is how long the fuel tank capacity lasts). An electronic device controls the burner and sets the preselected temperature of the blown air. The automation system can work with a room thermostat, allowing the temperature to be maintained at a constant level.

Heaters operate using an efficient heat exchange system. A fan pushes air through a steel heat exchanger, heating it up. Rapid energy exchange and the forced injection of heated air into the room produce a noticeable increase in temperature. An advantage of this solution is the absence of an intermediary medium, such as liquid (water). Therefore, there are no transmission losses between the boiler room and the heat receivers (e.g., radiators). It is possible to turn off the device without fear of damaging the system due to freezing.

The device consists of a heat exchanger with a fan mounted on it, and an exhaust outlet located at the opposite end. Depending on the version, the fuel tank with the fuel supply assembly is located on either the left or right side. On the opposite side, there is an inspection door providing access to the burner and its combustion chamber. At the top, there is a flue gas outlet (chimney connector).

Heaters are perfectly suited for heating large-volume spaces, such as:
– Churches
– Warehouses
– Production halls
– Greenhouses
– Sports halls
– Workshops
– Restaurants and clubs

Malfunction – Heater Has Shut Down:

• No fuel in the tank – refill the fuel tank.
• Clogged fuel feeding system – remove fuel from the system and clear any blockage to unblock the feeder.
• Broken safety pin of the overload clutch/gearbox – eliminate the cause of overload in the fuel feeding system, then replace the pin.

Malfunction – Sudden Temperature Increase:

• Fan and feeder do not shut off despite the boiler reaching the set temperature – turn the controller off and on again; check if the main fan is working; retry operation under close supervision; check the STB safety device status; turn off the heater and call service support.

Malfunction – Heater Does Not Reach Set Parameters:

• Air heater fan speed too high – reduce the fan speed.
• Fuel calorific value too low – change the fuel or enrich it with high-calorific fuel.
• Incorrect combustion process – adjust the air supply; remove clinkers and slag from the grate; increase the fuel feeding frequency.

Malfunction – Heater Produces Smoke:

• Excessive air supply – reduce the air flow.
• Leaking inspection doors – check the sealing condition and adjust the door pressure.
• Dirty heater – access the heat exchanger located above the burner through the inspection doors and by removing the upper cover; thoroughly remove dirt, soot, and carbon deposits; securely close all inspection openings and covers; clean the combustion chamber of any impurities.
• Clogged chimney – clear the chimney by dismantling and cleaning it.
• Lack of fresh air in the room – check and clear the supply and exhaust ventilation of the boiler room.

The heater and burner should be cleaned regularly, and ongoing visual inspections of the heater and its components should be conducted.
For the heater, it is essential to ensure proper flue gas flow through the heat exchanger to the chimney. To achieve this, cleaning of the heat exchanger, combustion chamber, and chimney duct should be performed before and after the heating season.
Such cleaning may also be necessary during the heating season depending on how the heater is used. Signs indicating this include smoke in the combustion chamber and impaired operation resulting in loss of heating power.

Periodic cleaning and maintenance should only be performed when the heater is turned off and cooled down.

1. To clean the heat exchanger, the top covers must be removed.
2. Use a scraper to remove dust deposits from the heat exchanger.
3. The dust will naturally fall into the ash pan.
4. Check the condition of the rope seal on the top covers.
5. Close the top covers.
6. Remove dust and ash from the combustion chamber and ash box.
7. Check the condition of the rope seals on the inspection doors.
8. Adjust the door pressure using the adjustment screws located near the hinges.
9. Check the condition of the deflector and guides.
10. Check the condition of the fuel tank cover gasket.
11. Check the functionality of the latch lock on the fuel tank cover.
12. Check the stability of the fuel tank’s mounting/base.
13. Tighten the fastening nuts of the fan and feeder.
14. Clean the chimney duct and remove any dust deposits released from it.

Periodic cleaning and maintenance of the retort burner should be performed every 30 days of operation and only when the heater is turned off and cooled down.

1. To clean the feeder, remove excess fuel and ash from the grate after the heater has been shut down.
2. Remove the air nozzle located on the grate. If it is stuck and difficult to remove, carefully tap it from below with a hammer and a piece of wood to avoid damage.
3. The air channel located under the nozzle must be thoroughly cleaned, as ash deposits and unburned fuel may accumulate there. Manual tools or a suitable vacuum cleaner can be used for this purpose.
4. Clean the nozzle and unblock the air supply holes.
5. Visually inspect the burner components for signs of wear.
6. If all components are in good condition and cleaned, carefully install the nozzle onto the grate, ensuring no parts are misaligned or leaking. Use high-temperature silicone (>1200°C) to seal the edges, following the burner’s technical documentation (DTR) included with the heater or available on our website and the burner manufacturer’s site.