Heat relay is normally made up of
double metal sheet, when the
current is too large, the double
metal sheet will heat distortion and
movement, and open the protection
contactor ,which causes control
circuit disconnect and then the main
circuit will be cut off, after it cooling,
control circuit will restore
connection, but the main circuit is
still disconnect, need to press start
button to restart unit,
Only for Cassette, the pump head is 1.2 meter,the
condensate pipe must have over 1/100 descend
angle, after unit cooling or dehumidify stops running,
the pump will still work 3 minutes to clean the
condensate.
Physical properties will change along with the
temperature, pressure change,used for check
temperature and pressure.
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