Midea MSH-07CRN1, MSH-07HRN1, MSH-09CRN1, MSH-09HRN1, MSH-12CRN1, MSH-12HRN1 Manual page 97

8.5.5 Outdoor Unit current control when heating
(11.5A) 10.0A
(10.5A) 8.8A
(9.2A) 7.4A
8.5.6 Indoor evaporator protection against high temperature
When the temperature of indoor heat exchanger is higher than 53°c, the frequency will reduce one
step and last for 20 seconds every time until the temperature drops down lower than 53°c. If the
temperature drops down < 48°c, the limitation then will be removed (the frequency will not going
down further when reaching 35Hz).
When the temperature of indoor heat exchanger is higher than 63°c, shut off the compressor.
8.5.7 Indoor fan vanes at heating mode will swing in accordance with the following:
When just plugged in for heating, the vanes will open to the standard angle 220°.
The vane angle can be set by remote control at any angle between 0° and 220° (every setting can
adjust 6°) or set swinging (swinging angle will be 25°).
8.5.8 Defrosting operation
8.5.8.1 Defrosting precondition:
Defrosting starts when meeting one of the three conditions:
The temperature of outdoor heat exchanger remains consecutively lower than 3°c for more than
40 minutes, and the temperature remains consecutively Ti1 for more than 3 minutes.
Model
MSG-09HRI :
MSG-12HRI :
MSG-09HRIN2 :
MSG-09HRIN2 :
Compressor off
frequency down
frequency unchanged
Ti1:
-4°c
-6°c
-9°c
-9°c
Note:
The frequency in the table
goes down in accordance
with the present frequency,
determine every 2 seconds
whether it keeps going
down or it is recovering.
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