Midea MS11D-18HRDN1 Сервис мануал онлайн [45/56] 624905

Midea MS11D-18HRDN1 Сервис мануал онлайн [45/56] 624905
DM13-01.01.12en Neola Inverter
Service manual 45
preferential.
Auto fan action in heating mode:
2.5
2
High
Low
1
Medium
1.5
10.4.3.4 Defrosting mode
Condition of defrosting:
----T40,
When the units are running, if the following two items are satisfied, the units start defrosting:
The units run with T33 for 40 minutes and T3 keeps lower than TCDI for more than 3 minutes.
The units run with T33 for 80 minutes and T3 keeps lower than TCDI+2 for more than 3
minutes. While TCDI
=6.
----T40,
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 T33 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.
While TCDE1=12, TCDE2=8 for 9K,12K model. TCDE1=15, TCDE2=8 for 18k, 24k models.

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