CD 30 ÷ 520
10
To correctly operate the unit and ensure normal and safe running when the outdoor Temp is
under 0°C in winter, the following should be noticed:
If the unit will not be used for a long time, please drain water away to prevent the plate heat-
exchanger from freezing.
If it is used frequently, it is absolutely forbidden to switch off the power, because the unit has
auto anti-freeze function. Moreover, in order to protect the plate heat-exchanger from freezing
in case the unit stops at night, and it must add some anti-freeze mixture to water system such
as glycol or propylene glycol.
Water flow switch should be installed correctly; otherwise, the unit may be damaged. What’s
more, the water flow switch should be Queryed periodically if it is work normally.
If malfunctions occur, it is absolutely forbidden to turn on the unit before the problems are
solved. At the same time, please drain water away to prevent the plate heat-exchanger from
freezing.
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