31
Auto fan action in heating mode:
2.5
2
High
Low
1
Medium
1.5
8.4.3.4 Defrosting mode
Condition of defrosting:
----T4
＞
0 ,
When the units are running, if the following two items are satisfied, the units start defrosting:
The units run with T3
＜
3 for 40 minutes and T3 keeps lower than TCDI for more than 3 minutes.
The units run with T3
＜
3 for 80 minutes and T3 keeps lower than TCDI+2 for more than 3 minutes.
While TCDI
=
－
6 .
----T4
＜
0 ,
If the 1
st
condition and 2
nd
condition items are satisfied, then the program judges if T2 has decreased
more than 5 .When T2 has decreased more than 5 , enter the defrosting mode.
----No matter what value T4 is, if the machine runs with T3
＜
3 for more than 120 minutes and T3
keeps lower than TCDI+4 for more than 3 minutes, the machine will enter defrosting mode no matter
if T2 drops more than 5 or not.
Condition of ending defrosting:
If any one of the following items is satisfied, the defrosting will finish and the machine will turn to
normal heating mode.
----T3 rises to be higher than TCDE1 .
----T3 keeps to be higher than TCDE2 for 80 seconds.
----The machine has run for 10 minutes in defrosting mode.
TCDE1=15
℃
,TCDE2=8 for MSX-24HRDN1-QC2GW.
