17
7
OPERATING INSTRUCTIONS
7.1. Setting thermo-regulator (thermostatic controller for combustion air)
Mechanic type thermo-regulator is mounted on front side of boiler in horizontal position. In horizontal
operation of thermo-regulator, white coloured numbers show the requested heating temperatures. After
assembly of thermo-regulator body, place the lifting rod for regulator.
Load the boiler and fire. Wait until the boiler temperature reaches 60
0
C. Set the thermo-regulator to 60
0
C.
Attach one end of thermo-regulator chain to primary air damper. Attach the other end the chain to lifting rod
of thermo-regulator, and stretch the chain, leaving 2 mm space between primary damper and air inlet of
front door.
7.2. Pre-firing checks
Before first operation of boiler right after installation, hydraulic circuit must be ready for operation. To fill an
open vented circuit, the valve on start level line from expansion tank is opened, and the circuit is filled with
main supply water. During filling the system all valves and accessories on the lines must be checked for
leakage. Filling is stopped, when water from start level line is observed, closing the valve on this line. Right
after that, hydraulic pressure is marked on screen of the hydrometer. This will make re-filling operations
during heating season much easier, just feeding the system with fresh water until hydraulic pressure on
screen reaches the pre-marked value.
Before every firing make sure that;
1.
Boiler and circuit are filled with water, and the hydraulic pressure is in the required range.
2.
All valves on the line (except by-pass lines and start level line) are in open position.
3.
There is enough draught in chimney.
7.3. Firing
1.
Set the kindling. Place fire starters, crumpled newspaper (3 or 4 sheets balled up fairly tightly) on the
grate of the boiler. Place small kindling over the paper or starter. The more dry, small kindling you
have - the easier and better the fire will start. Crisscross the kindling so there is plenty of air space in
between each piece. Wood that is packed too tight will not burn properly. Set larger wood on top of
the kindling, and continue to set larger and larger pieces on top until the fuel exceeds the 1/3 level of
the filling chamber.
2.
Ensure that the primary air and chimney dampers are open. Then light the newspaper on the bottom
3.
After first ignition, switch the circulation pump on, and adjust air damper. Set mechanic thermo-
regulator to desired temperature as explained above
4.
The fire should be well established within approximately 15 minutes, then filling chamber can be
loaded completely, but check to make sure that the firelighters have not been extinguished.
5.
Keep the fire going. Always keep a “flame” on your fire - a smoking or smoldering fire is a cold and
inefficient fire and also produces pollutants and creosote (tar in the chimney)
7.4. Firing with wood
1.
When firing wood, you can keep the secondary air damper closed in order to extend combustion
period.
2.
You can set flue damper on the smoke-hood at the back of boiler to positions between open and
closed in order to adjust speed of combustion
