Instruction manual

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automatically. During this test, it is necessary to hold the + button within 30 seconds, to prevent
automatic stop of the test (see explanation in the schedule below).
Test is time limited for 30 minutes. It is automatically stopped or aborted if:
1. Boiler temperature increases to 110°C
2. The + button was not held for 30 seconds
In this case, regulator automatically switches to operation display.
Menu Submenu Indication
Information
Test of device
Test is time limited for 30 minutes
Safety test
Safety test +
(sec.) 30
Boiler temperature
(°C ) --,-
After selection of the test, it is necessary to
hold the + button within 30 seconds,
otherwise is the test automatically stopped.
If the boiler temperature increases to 95°C
- 100°C, the STB is switched on and the
fan is switched off. After few seconds, the
text: „STB on“ appears on display. It
means, that the STB test was successfully
done.
After pressing the „+“ button again,
circuiting pump stays stopped, until
temperature of 110°C is reached, to
perform the test of overheating protection.
Boiler temperature must be kept under
110°C to confirm, that the test of
overheating protection was successfully
done or finished.
Setting
FINISH
Maintenance of the heating system and of the boiler
At least once in fortnight check or fill up water in the heating system. If the boiler is out of
operation during winter, water can be frost in the system. Therefore it is better to discharge water of
the system or fill in the antifreeze agent. Otherwise discharge water only in critical situations and
for the shortest possible time. After heating season is finished, clean the boiler thoroughly, replace
damaged parts. Twice a year clean the radial impeller of the ventilator and its air chamber.
Changing of door sealing cord
Dismantle the old sealing cord with a screwdriver and clean the rabbet where it was placed. Take
the new sealing cord and put its begining on the horizontal parts of the rabbet. Press it into the
rabbet on the circumference of the door with your hand or light knock of the hammer.
Adjustment of hinges
After some time, the sealing cord in the door gets deformed. Therefore, to ensure tightness of the
door, it is necessary to change the position of the door. The position is changed by tightening the
hinges of the door. Feeding door and bottom door are joined to the body with two hinges which are
attached to the door with a long pin. To change adjustment of hinges, it is necessary to remove the
pin and screw the hinge by turning it. Fit the door on and insert the pin into the hinge.
Nozzle body change
The body of nozzle is placed in the boiler body in a nozzle holder. In the lower part is the nozzle
body sealed by boiler lute and in the upper part by a packing cord. When exchanging the nozzle,