KyungDong KDB-101GOM+ Installation Manual page 14

G O M + 표 준 형 - 영 문
Freezing Guard
If unit is connected to the pipe and the pipe is not completely full of water, plug the
power cord and in case of much bubbles inside the pipes, if you start the freezing
guard function with less than sufficient number of pipes then this may cause the unit
to rotate without operating normally, overheating the pump or induce malfunctions.
Thus, make sure to release the air inside the pipes and check the water level.
Pipes must be completely insulated.
Please do necessary measures to ensure freezing guard in locations where it is
extremely cold such as covering the exposed pipes with insulation heater. (It is also
proper to insulate by constructing the pipes next to the heating pipes.)
If any freezing may occur, condensed water discharge hose must be completely
insulated with insulation material.
When not using the boiler for a long time, completely drain the unit of water to
prevent freezing and close the gas shut-off valve and unplug the unit.
The exposed parts must be protected from freezing by covering with at lease
25mm of insulation material. (Colder locations it should be at least 50mm.)
<General Cautionary Items in Pipe Construction>
Each connection part must be tightened with union or nut.
Water supply pipe, hot water pipe, heating pipe, distributor, and check valve must
be insulated to prevent freezing.
Pipe materials must be national or local standard materials.
Before connecting the heating and hot water pipes to the boiler joint, please
remove any iron shavings that were produced during the pipe construction or any
contaminants inside the pipes. (Complete Cleaning of the Pipes)
Please do not use any well water for heating. If it is unavoidable that you must use
well water then please remove any contaminants from the pipes.
Do not connect to the pipes (particularly the metal pipes) that were used for coal or
oil boilers if at all possible. (This may cause malfunction or shorten its use life.) If
unavoidable, please remove any contaminants from the pipes.
Any contaminants inside the pipes reduce heating and hot water efficiency and
causes malfunctions.
Please completely remove any air from each of the pipes.
Recommendations
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