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Hot Water Boiler with Steel Body, Automatic Fuel Feed Operation and Maintenance Manual
RULES FOR HEATING INSTALLATION
Circulation pump:
A pump with sufficient capacity is recommended. The capacity of the required pump is determined
by taking into account the resistance in
the installation. Refer to the wiring
diagrams in the manual to determine
the correct position of the pump in the
system. The pump stage must be
adjusted according to the resistances in
the installation.
In addition to the schematic installation
connection shown in high-capacity
boiler installations, a backup pump
system must be installed. The by-pass
line must be connected directly to the
spare pump line as a primary pump.
Boiler inlet and outlet lines must be
connected with collectors. For open expansion installations, the head of the pump must be less than
the height of the expansion, so that the system does not make air.
When the circulation pump is installed, the failure of the electrical connections to come down will
eliminate the problem of entering the water into the pump. Perpendicular installation of the shaft
should also be avoided in order to prevent the pump shaft from pressing the housing or the outer
cover during operation.
Expansion tank:
In hot water heating systems, when the water is heated from 10ºC to 90ºC, its volume increases by
3.55% in its first volume. Expansion tanks are used in order to obtain this expansion due to the
temperature in the water. Expansion tanks also fulfill the safety of the system, that is, the pressure
does not rise, and the necessary water support functions for the system. Expansion tanks are divided
into two parts:
Systems with closed expansion tanks:
Closed expansion tanks are manufactured with air and nitrogen pressure before they are installed in
the system. Pressure in the expansion tank is the pressure of the system. When the expansion tank
heating circuit is active, the water volume which is expanded with the heating of the water is
collected into the expansion tank. Then, when the heat falls, this water returns to the installation and
balances the pressure of the installation. Compared to open systems; Since there is no piping
operation to the top point of the radiator, no crushing process will be done, there will not be any
heat loss due to the fact that there is not any open door to the external environment, there will not
be a part of the system which is exposed to corrosion and since the system is closed, there will be no
water loss due to evaporation.
