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Page 18
COOLING OPERATION
How it works:
In cooling mode, your Sophia indoor unit will absorb heat from the room,
then the Sophia outdoor unit will discharge the heat to the outdoors. The
sophia cooling capacity decreases as the outdoor temperature increases.
This causes the ali ce to work harder and longer to hold the selected room
temperature.
Indoor Coil Freeze Protection:
Frost may form on the indoor coil during cooling operations when the
outdoor temperature below 50°F (10°C). Prolong operation may cause ice
Sophia indoor unit
microcomputer detects ice on the indoor coil it will stop the compressor to
defrost the coil and protect the unit.
HEATING OPERATION
How it works:
In heating mode, your Sophia outdoor unit will absorb heat from the outdoor
ambient, then the Sophia indoor unit will discharge the heat to the room. The
Sophia heating capacity decreases as the outdoor temperature decreases.
During extreme cold outdoor temperatures, you may need an additional
heating source to supplement the Sophia heating output.
Defrost Function:
In heating mode, frost may form on the outdoor coil during humid and low
outdoor temperature conditions. Prolong operation may cause ice to form
Sophia’s
heating capacity.
If the sophia microcomputer detects ice on the outdoor coil, it will switch
automatically to defrost mode to melt the ice and clear the coil. During
defrost mode, heating will be discontinued and the Sophia indoor unit will
and outdoor fans will stop. It is normal to see steam or vapor coming from
the outdoor unit during defrost mode. Defrost mode will terminate 12
minutes after initiation of defrost cycle or when the outdoor coil temperature
is 50°F (10°C) or greater.
SYSTEM OPERATION
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