Toyotomi CCT 50HINVi Service Manual page 39

Electrical Control Function
1.3.11 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
00 Normal display
01 Indoor unit capacity demand code
02 Amendatory capacity demand code
The frequency after the capacity requirement
03
transfer
04 The frequency after the frequency limit
05 The frequency of sending to 341
Indoor unit evaporator outlet temp.(heating T2
06
cooling T2B)
07 Condenser pipe temp.(T3)
08 Outdoor ambient temp.(T4)
09 Compressor discharge temp.(Tp)
10 AD value of current
11 AD value of voltage
12 Indoor unit running mode code
13 Outdoor unit running mode code
14 EXV open angle
15 Frequency limit symbol
16 DC fan motor speed
102
Display
Display running frequency, running state or malfunction 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)
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".
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: "
The display value is between 13~129 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
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)
The display value is hex number.
Off:0, Fan only 1,Cooling:2, Heating:3
Off:0, Fan only 1,Cooling:2, Heating:3, Forced cooling:4
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 Tp.
Frequency limit
Bit1
caused by current
Frequency limit
Bit0
caused by voltage
Remark
"
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.
Electrical Control System