Table of Contents
Advertisement
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
45
The last error or protection code
46
F indoor unit capacity
47
F indoor unit capacity demand code
48
F indoor unit evaporator outlet temperature (T
49
F indoor unit room temperature (T
50
F indoor unit evaporator temperature (T
51
EXV open angle for F indoor unit
52
Reason for shutdown
9.5 Protection
9.5.1 Three minutes delay at restart for compressor.
9.5.2 Temperature protection of compressor discharge.
When the compressor discharge temperature is getting higher, the running frequency will be limited as
below rules:
9.5.3 Low voltage protection
99 ℃, the digital display shows single and double digits. For example, if
the digital display shows "0.5", the compressor discharge temperature is
105 ℃.
The display value is a hex number.
For example, the digital display tube shows "Cd", it means AD value is
205.
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.
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
(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
If the temperature is lower than -9 ℃, the digital display shows "-9." If the
F)
2B
temperature is higher than 70 ℃, the digital display shows "70." If the
F)
indoor unit is not connected, the digital display shows: "――"
1
F)
2
T 5
C o m p r e s s o r o f f
F r e q u e n c y lim it
F r e q u e n c y h o l d in g
N o r m a l
28
Frequency
limit
caused
radiator
Frequency limit caused by PFC
Frequency limit caused by T4.
Frequency limit caused by T2.
Frequency limit caused by T3.
Frequency limit caused by T5.
Frequency limit caused by current
Frequency limit caused by voltage
The
display
by
IGBT
value
is
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.
a
Hide quick links:
Advertisement
Table of Contents
