4
01
Information about the handbook
Important information
i
Important information/instructions are highlighted in this way
(with lines above and below the text).
1.1 Symbols
Heat distribution
Indicates all components of the heating system used to store heat (buffer / hot water tank) or distribute it (the hot
water circuit itself), as well as connections to alternative energy sources (solar system, external boiler).
1.2 Concept explanation
02
General information
• The system may only be commissioned by our customer service department or a technician certified by us to do
so.
• Pellet heating systems with nominal power of more than 50 kW must be equipped with a buffer storage tank
sized to provide sufficient hot water for 1.5 hours operation once the daily service tank has been filled. The system
switches itself off automatically at least once a day for cleaning (heat exchanger and grate cleaning). Depending on
the amount of pellets remaining in the reservoir, along with its size and system power, the process (burning out /
filling / ignition) may take up to 1.5 hours to reach nominal power output (100% power) – the buffer storage tank is
not filled during this time.
• Recommendation: For long burner run times, to generate a constant chimney draft, to reduce start/stop emis-
sions and maintenance requirements: Equip the heating system with a conventional buffer storage tank, thermo-
siphon buffer storage tank or combination storage tank. In practice, buffer storage tanks rated at 40 to 75 l/kW
have proved to be effective solutions. Observe all local legislation regarding the use of buffer storage tanks. The
system may only be operated when it can be guaranteed that running it for a period of no less than 2 hours draws
50% of the nominal boiler heat.
• Use only the type fuels we recommend- wood pellets atoccording EN 14961-2, Class A1+ A2 (Ø 6 mm). Only in
this way will your pellet heating system operate with low emissions, cost effectively and without malfunctions. Fail-
ure to observe this rule may be dangerous, and voids the warranty/guarantee!
• Clean the pellet heating system at regular intervals, as specified in this handbook. Maintenance must be done by
our customer service department or a certified partner. This not only ensures that the system and its safety equip-
ment are safe to operate, but also that it runs efficiently and with low emissions. We strongly recommend that you
stipulate a service contract. The specified cleaning and maintenance intervals are mandatory. Please note that
damage caused by failure to observe the maintenance instructions is not covered by the warranty.
Summary of Contents for Top Light Zero 18
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