Maktek 25 MKP, Руководство по эксплуатации и использованию

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4.1 INSTALLATION AND FILLING WATER TO THE SYSTEM
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A by-pass line should be arranged between the inlet and outlet points of
the circulation pump, as shown in the installation diagram, in order to increase
the safety oin the event of a power failure or other case that can cause
circulation pump does not function. The valve on by-pass line should be kept
closed during normal functioning. If there is an electricity outage and a risk of
overheating appears, the valve must be open ed and the evacuation of hot
water must be provided by natural circulation. The diameter of the pipe to be
used at by pass line should be the same diameter size with the pipe used in
installation at minimum.
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An infinite power source may be used for electricty cut as an extra security
measure.
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Install a 3 bar s afety valve on the boiler for protection against over
pressure . The diameter of the safety valve should be min. 1".
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It is recommended to mount circulation pump on return line for protecting it
from overheating (stream).
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All connections and valve positions must be checked after the installation
of the boiler is complete.
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Operations like water filling or draining must be done while the boiler is
not working and when it is cold.
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Monitor the pressure gauge while filling water to the system . Make sure
that the pressure is 1.5bars .
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Make sure to vent all the trapped air from the system using the air purgers
on the radiators and on the installation.
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Avoid any installation that might block air in the system, if any doubt,
please use automatic purger.