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4-WAY CASSETTE
■ Freezing Protection Control during Cooling or Dry Operation
Cooling or Dry Operation
2-16
Power Supply
Is compressor
No
operated for more than
15 min?*
*
Yes
Gas or Liquid Pipe
Surface Temp. of
Indoor Heat Exchanger
< 32
o
F(0
o
C)
Is it continuous for
more than 3 min.?
Yes
MIF Operation at Set Fan Speed
(In case of Dry Operation,
MIF Operation: OFF for 6 min.)
I.U. Electronic Expansion Valve:
Completely Closed
Is it continuous
for more than 3 min.?
(6 min. in case of
Dry Operation)
Yes
Yes
Elapsed Time:
15 min.
No
a
Either Gas or Liquid Pipe
Surface Temp. of
Indoor Heat Exchanger
> 58
o
F(14
o
C)
Pipe Surface
Temp.
*2)
> 36
o
F(2
C)
o
*2): Pipe Surface Temp.
Yes
I.U.: Indoor Unit
MIF : Motor for Indoor Fan
The check interval differs
depending on the conditions.
Cooling or Dry Operation
> 32
o
F(0
o
C)
No
No
< 58
o
F(14
o
C)
No
NOT adopted at
a
.
TC-17005-rev.1
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