Electronic Function; Performance Index; Main Data Introduction; Operation Modes And Functions - Midea MFJ-24ARN1-QB8 Technical & Service Manual

7

Electronic function

7.1 Performance Index

No. Item
1 Applicable Voltage Range
2 A/C Frequency
3 Working environment temperature

7.2 Main data Introduction

Ts : Set temperature,
T1 : Room temperature
T2: Evaporator pipe temperature

7.3 Operation Modes and Functions

7.3.1 Manual Operation
7.3.2 Heating Mode
7.3.2.1 Four-way valve opens at once, while defrosting process closes.
7.3.2.2 Condition for the compressor action: (Ts=set temperature, T1=room
temperature)
Room temperature up
Room temperature down
7.3.2.3 Indoor Fan Action
Anytime remote switchover for fan speed among high/low/auto, anti-cold air function takes
priority.
Auto fan in heating mode
Room temperature up
Room temperature down
Anti-cold air:
Switchover between fan speed and fine tune can be set according to temperature of evaporator
pipe (T2).
Room temperature up
Room temperature down
Condition Compressor and outdoor fan
T1-Ts=0° C Off
T1-Ts>-1° C On
T1-Ts<-1° C On
T1-Ts=0° C Off
Condition
T1-Ts>-1° C
T1-Ts<-1° C
T1-Ts<-2° C
-2° C <T1-Ts <-1° C
Condition
T2<25° C
25° C <T2<32° C
T2>32° C
T2>22° C
20° C <T2<22° C
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Electronic function
Index
185-253V, 342-418V
50Hz
-7° C- +45° C
Fan speed
Low
Hi.
Hi.
Low
Fan speed
Off
Low
Set fan speed
Set fan speed
Low