Lennox MPA012S4S-1L Service Manual page 123

Display
34
Compressor discharge temp.
(TP)
35 AD value of current
36
AD value of voltage
37 EXV open angle for A indoor
unit
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
43 Average value of T2
44 Outdoor unit fan motor state
The last error or protection
45
code
46 F indoor unit capacity
F Indoor unit capacity demand
47
code
48 F indoor unit evaporator outlet
temp.(T2BF)
49 F indoor unit room temp.(T1F)
Remark
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.)
The display value is hex number.
For example ,the digital display tube show "Cd", it means AD value is
205.
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.)
Frequency limit
Bit7 caused by IGBT
radiator
Frequency limit
Bit6
caused by PFC
Frequency limit
Bit5
caused by T4.
Frequency limit
Bit4
caused by T2.
Frequency limit
Bit3
caused by T3.
Frequency limit
Bit2
caused by T5.
Frequency limit
Bit1
caused by current
Frequency limit
Bit0
caused by voltage
(Sum T2 value of all indoor units)/( number of indoor units in good
connection)
Off:0, High speed:1, Med speed:2, Low speed:3 Breeze:4, Super
breeze:5
00 means no malfunction and protection
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.
Lennox Mini-Split Service Manual / Page 123