HDG Turbotec 50 L, Руководство по эксплуатации

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4 Planning and installation – Connections
28
• If the system flue pipe has a larger diameter than the chimney, the
connecting piece must reduce to the diameter of the connection.
In this case, the connecting piece should taper as gently as
possible.
• Use arcs rather than elbows, whereby the radius of the arc may not
be less than the diameter of the pipe.
• Chimney should be vertical and straight, if possible without bends
(take particular care in older buildings).
• All of the cleaning and measurement hatches on the chimney
must be tightly sealed.
• To reduce the entry of additional cold air, only attach one heat
producer to each chimney.
E
LECTRICAL SYSTEM
The terms of 2006/95/EC (low voltage guidelines) must be followed
for the electrical connections to the system.
The required connection values are described in chapter “3 Mode
of operation”, section “3.3 Technical data”.
W
ATER
The heating system must be filled with water in accordance with VDI
guideline 2035 “Avoiding damage in hot water heating systems”.
U
SING A BUFFER TANK
When calculating the thermal requirements of buildings, e.g.
according to DIN EN 12831 “Method for calculating the normal
heating load”, the lowest outdoor temperature for the climate zone
concerned (e.g. -15 °C) is used. This condition only applies a few days
per year, thus, the thermal performance of the heating system is
greater than required on most days when heating is needed.
As the boiler for this system is rated for a nominal load, the use of a
buffer tank is required.
The size of the buffer tank depends on the nominal thermal power of
the boiler, the thermal requirement of the building and the fuel
chamber volume of the boiler. As a rule of thumb, the following
formula can be used to make a rough calculation based on the
volume of the fuel chamber:
V
buffer
=fuel chamber volume x 13
(The factor is dependent on the fuel type. Spruce is assumed as the
fuel for this example. For beech, a factor of 15 should be used in the
formula.)
The product should be rounded up.
E
XAMPLE CALCULATION
The HDG Turbotec has a fuel chamber volume of 340 litres.
V
buffer
= 340 litres x 13 ? V
buffer
= 4,420 litres