INSTALLATION, OPERATION AND MAINTENANCE MANUAL
13
Putting the boiler into service
Checking the boiler before turning it on
Before putting the boiler into operation, the service technician must check:
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Whether the installation conforms with the design;
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Whether the boiler has been filled in and is under pressure (on the thermo-manometer), and whether there are any leakage
in the heating system;
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Connection to the chimney – connection must be approved by an authorised chimney sweep (chimney inspection);
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Functioning of the heating controls.
Please note
The service technician must show the user how to control the boiler and enter the date when the boiler was put into service into the
Warranty Certificate.
Filling up and draining the heating system
The system can only been filled up or topped up with water which meets the parameters specified by EN standards. The water must
be clear, colourless, free of suspended particles, oil and chemically corrosive substances, and must not be acidic (pH factor must
be greater than 7.2). First of all, the heating system must be thoroughly flushed and all dirt washed out.
Please note
Water in system must not be reduced or put out unless the boilers is in service or under freezing danger.
Against freezing anti-freeze liquid can be added in to system water at the rate of 15%.
The failure to meet this requirement may lead to the heat exchanger getting clogged up, and the cast iron block may crack as a result.
During the heating season, a constant volume of water must be maintained inside the heating system. When topping up water,
care must be taken that no air is sucked into the system. Water must never be let out of the boiler or the heating system, unless it
is absolutely essential, such as before repairs, etc. Draining water and refilling the system with new water increases the risk of
corrosion and formation of incrustation.
Filling or topping up water to the heating system must always be done with the boiler cold or cooled down; otherwise the boiler
segments may crack!
Operation and controls
Starting a fire
Check on the thermo-manometer whether there is enough water in the heating system. Open the shutting valve between the boiler
and the heating system. Spread paper on top of the clean stoker and then enough finely chopped wood. Open the flue flap in the
chimney adapter and shut the stoking door. Light the paper through the open ashtray door and fully open the regulating flap in the
ashtray door. The fire has caught up enough, stoke a layer of main fuel on top of the burning firewood. When the fire is powerful
enough, stoke more fuel right up to the bottom edge of the stoking door and level it into.
Provide an even layer throughout the entire boiler depth. If the fuel suddenly turns into dark red blaze, open partially the secondary air
supply rosette in the stoking door. When the flame turns yellow, shut the secondary air supply rosette again. When the boiler has reached
the required output, it is suitable to partially shut the flue thrust flap to prevent heat from unnecessarily escaping into the chimney.
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Do not start the boiler without connecting the boiler to the chimney.
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Control chimney connections before starting the boiler.
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Adjust the chimney blow as requested level. If chimney blow is under mentioned levels try not to
use the boiler.
Setting the outlet water temperature
When the required outlet water temperature is say 60°C, heat up the boiler to a temperature for instance 5°C higher than the
required temperature of 60°C (measured on the thermometer on the boiler outlet pipe). Then turn the control knob to 65°C and
check whether the chain is stretched and the regulating hatch completely shut. This position of the chain and regulating hatch is
fine-adjusted by turning the control knob.Then let the regulation process work. When the water temperature drops, the regulating
hatch will start opening by the tension applied by the regulator on the chain. When the water temperature suddenly rises, the
regulating hatch will start opening. And the hot water temperature on the boiler outlet is controlled.
