show: “――”)
12
AD value of current
AD data(decimal numeral)
13
EXV open angle for A indoor unit
Actual data times 8
14
EXV open angle for B indoor unit
Actual data times 8
15
EXV open angle for C indoor unit
Actual data times 8
16
EXV open angle for D indoor unit
Actual data times 8
17
AD value of voltage
AD data(AD data*472/255=actual data)
If AD data is higher than 99V, the digital display tube will show single
digit and tens digit.
18
Indoor unit number
The indoor unit can communicate with outdoor unit well.
Display
Number of indoor unit
1
1
2
2
3
3
4
4
19
The last error or protection code
00 means no malfunction
20
frequency value
Actual data
21
A indoor unit room temp.(T
1
A)
Actual data
22
A indoor unit evaporator temp.(T
2
A)
Actual data
23
B indoor unit room temp.(T
1
B)
Actual data
24
B indoor unit evaporator temp.(T
2
B)
Actual data
25
C indoor unit room temp.(T
1
C)
Actual data
26
C indoor unit evaporator temp.(T
2
C)
Actual data
27
D indoor unit room temp.(T
1
D)
Actual data
28
D indoor unit evaporator temp.(T
2
D)
Actual data
29
――
Check point over
8.5 Protection
8.5.1 Three minutes delay at restart for compressor.
8.5.2 Temperature protection of compressor discharge.
When the compressor discharge temp. is getting higher, the running frequency will be limited as below rules:
----If 102
℃
<T5<115
℃
, decrease the frequency to the lower level every 2 minutes till to F1.
---If T5>115
℃
for 10 seconds, the compressor will stop and restart till T5<90
℃
.
8.5.3 Low voltage protection
VOLLIMT1
VOLTAGE
No limit
VOLLIMT2
VOLLIMT3
Off
VOLFRE2
VOLFRE1
VOLREL1
VOLREL2
VOLREL3
Note: if the low voltage protection occurs and not resumes within 3min, it will keep the protection always
after restart the machine.