Electrical Control Function
LFIS-B-1211
86
Electrical Control System
1.3.10 Point Check Function
There is a check switch in outdoor PCB.
Press the switch SW1 to check the states of unit when the unit is running.
Press the switch N times it will display the content corresponding to No. N. After getting into the check
function, it will display No. N with 1.5s, meanwhile the low bit decimal of digit display flashing, indicated to
get into the check function display. After 1.5s, it will display the content corresponding to No. N.
the digital display tube will display the follow procedure when push SW1 each time.
N
Display
Remark
00
Normal display
Display running frequency, running state or malfunction code
01
Indoor unit capacity demand code
Actual data*HP*10
If capacity demand code is higher than 99, the digital display
tube will show single digit and tens digit. (For example, the
digital display tube show “5.0”,it means the capacity demand
is 15. the digital display tube show “60”,it means the capacity
demand is 6.0)
02
Amendatory capacity demand code
03
The frequency after the capacity requirement
transfer
04
The frequency after the frequency limit
05
The frequency of sending to 341
06
Indoor unit evaporator outlet temp.(T2)
If the temp. is lower than 0 degree, the digital display tube will
show “0”.If the temp. is higher than 70 degree, the digital
display tube will show “70”.
07
Condenser pipe temp.(T3)
If the temp. is lower than -9 degree, the digital display tube will
show “-9”.If the temp. is higher than 70 degree, the digital
display tube will show “70”. If the indoor unit is not connected,
the digital display tube will show: “――”
08
Outdoor ambient temp.(T4)
09
Compressor discharge temp.(Tp)
The display value is between 30~120 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 digital display tube show “1.6”,it
means the compressor discharge temp. is 116 degree)
10
AD value of current
The display value is hex number.
11
AD value of voltage
12
Indoor unit running mode code
Off:0, Fan only 1,Cooling:2, Heating:3, Forced cooling:4
13
Outdoor unit running mode code
14
EXV open angle
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.)
15
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 Tp.
Bit1
Frequency limit
caused by current
Bit0
Frequency limit
caused by voltage
16
DC fan motor speed
17
IGBT radiator temp.(Reserved)
The display value is between 13~120 degree. If the temp. is
lower than 13 degree, the digital display tube will show “13”.If
the temp. is higher than 99 degree, the digital display tube will
Summary of Contents for SUPER DC INVERTER SERIES
Page 1: ...Contents i New Energy Requirement SUPER DC INVERTER SERIES Service Manual 2012 LFIS B 1211 ...
Page 2: ...ii General Information ...
Page 4: ......
Page 17: ...LFIS B 1211 Service Space Indoor Units 13 3 Service Space 1000mm 1000mm 1000mm 1000m m ...
Page 23: ...LFIS B 1211 Field Wiring Indoor Units 19 9 Field Wiring ...
Page 36: ...Duct Type LFIS B 1211 32 Indoor Units 10 Field Wiring ...
Page 40: ...Duct Type LFIS B 1211 36 Indoor Units 3 Service Space ...
Page 44: ...Field Wiring LFIS B 1211 40 Part 3 9 Field Wiring ...
Page 50: ...Wiring Diagrams LFIS B 1211 46 Part 3 KOU 36HFN1 RRC4 ...
Page 100: ...Troubleshooting LFIS B 1211 96 Electrical Control System 2 4 2 3 Up down panel is not closed ...
