Lennox Mini-Split Service Manual / Page 123
Display Remark
34
Compressor discharge temp.
(TP)
The display value is between 30~129 degree. If the temp. is lower than
30 degree, the digital display tube will show “30”.If the temp. is higher
than 99 degree, the digital display tube will show single digit and tens
digit. For example, the digital display tube show “0.5”,it means the
compressor discharge temp. is 105 degree.)
35 AD value of current The display value is hex number.
For example ,the digital display tube show “Cd”, it means AD value is
205.
36
AD value of voltage
37 EXV open angle for A indoor
unit
Actual data/4.
If the value is higher than 99, the digital display tube will show single
digit and tens digit.
For example ,the digital display tube show “2.0”,it means 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 hex
number. For example, the
digital display tube show
2A,then Bit5=1, Bit3=1,
Bit1=1.
It means frequency limit
caused by T4,T3 and
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, High speed:1, Med speed:2, Low speed:3 Breeze:4, Super
breeze:5
45
The last error or protection
code
00 means no malfunction and protection
46 F indoor unit capacity
47
F Indoor unit capacity demand
code
48 F indoor unit evaporator outlet
temp.(T2BF)
49 F indoor unit room temp.(T1F)
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