Connecting The Boiler To The Heating Installation - Sunsystem BURNIT WBS Active-Serie Montage- Und Bedienungsanleitung

TECHNICAL PASSPORT INSTALLATION and OPERATION MANUAL

7.3. Connecting the boiler to the heating installation.

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Such connection must be performed by a technician
/ service shop authorized for such operations.
When the boiler is connected to a heating system, it is
mandatory to install a 3 bar relief valve and expansion vessel.
No shut-off fittings may be installed between the relief valve,
expansion vessel and boiler.
1. Due to unsealed connections
2. Due to accumulation of deposits. Condensate
and tar formation may reduce the performance
and life of the heating boiler. The temperature at
the boiler inlet must not be less than 65°C, boiler
water temperature at the outlet must be between
80°C and 85°C.
3. Due to freezing
1. Insufficient draught
2. Heating value of the fuel is too low.
3. Presence of soot deposits and/or tar on the flue
damper in the upper chamber which prevent its
tight closure.
4. Presence of soot deposits and/or tar in the flue
pipes in water jacket in the back of the boiler
1. Hydraulic resistance is too high.
2. Air in the system
3. Inoperable circulation pump
Grid power fluctuations
Power failure
Table 4. TROUBLE-SHOOTING TABLE
Cause
Boiler water too hot, heating bodies too cold
Boiler temperature too high. Controller failure
It is mandatory to install a three-way valve
(Laddomat or similar) or a four-way mixing valve
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which to ensure that the temperature of the
heating medium fed into the boiler from the
heating installation is at least 65°С.
Installation damage
1. Install the connecting piping strain-free to the boiler connections.
Connect the heating installation outlet to connection B. Connect the
heating installation inlet to connection A. Mount the cock Y included
in the set.
2. It is mandatory to install a three-way thermostatic valve which
will prevent the temperature dropping under 65°C at the inlet.
- In order to increase the operational life of the boiler it is
recommended to install a buffer vessel with capacity of 55 l per 1
kW of installed power.
3. If the heating installation, including the piping network, has
not been built frost-proof, we recommend that you fill the heating
installation with a liquid which has low freezing point and corrosion
protection and antifreeze agent.
Output too low
1. Check chimney condition and measure draught. (must be
performed by an authorized service)
2. Make sure you use sufficiently dry fuel. When using fuel with
high moisture content, after the reloading the boiler may burn for
some time at significantly lower output level until the fuel in the
combustion chamber has dried.
3. Clean the flue damper and make sure that when moving its
closing/opening lever it provides adequate sealing of the flue gas
outlet in the upper chamber. (must be performed by an authorized
service)
4. Clean the heat exchange surface of the flue pipes using the brush
from the cleaning tools set. After the cleaning is completed, remove
any soot through the inspection opening in the back of the boiler.
Must be performed by an authorized service.
Make sure the circulation pump has been properly selected and the
heating installation is of the proper dimensions. (You must contact
your installer.)
It is mandatory to assure a backup power generator of corresponding
rated power! (see 12.2)
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Solution
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