MrCool DIY-MULTI2-18HP230C, Service Manual

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 Troubleshooting 14 
37
EXV open angle for A indoor
unit
Actual data/4.
If the value is higher than 99, the digital display shows single
and double digits.
For example, if the digital display shows “2.0”, the EXV open
angle is 120×4=480p.
38
EXV open angle for B indoor
unit
39
EXV open angle for C indoor
unit
40
EXV open angle for D indoor
unit
41
EXV open angle for E indoor
unit
42 Frequency limit symbol
Bit7
Frequency limit caused by
IGBT radiator The display value is a
hexidecimal number.
For example, the
digital display show
2A, then Bit5=1,
Bit3=1, and Bit1=1.
This means that a
frequency limit may be
caused by T4, T3, or
the current.
Bit6 Frequency limit caused by PFC
Bit5 Frequency limit caused by T4.
Bit4 Frequency limit caused by T2.
Bit3 Frequency limit caused by T3.
Bit2 Frequency limit caused by T5.
Bit1
Frequency limit caused by
current
Bit0
Frequency limit caused by
voltage
43
Average value of T2
(Sum T2 value of all indoor units)/(number of indoor units in
good connection)
44
Outdoor unit fan motor state
Off: 0, Turbo:1 High speed:2, Med speed: 3, Low speed: 4,
Breeze:5, Super breeze: 6
45
The last error or protection
code
00 means no malfunction and protection
46 F indoor unit capacity
Reserved
47
F indoor unit capacity demand
code
48
F indoor unit evaporator outlet
temperature (T2BF)
49
F indoor unit room temperature
(T1F)
50
F indoor unit evaporator
temperature (T2F)
51
EXV open angle for F indoor
unit
52
Reason of stop