39
11
Indoor unit D capacity demand code
12
Indoor unit E capacity demand code
13
Outdoor unit amendatory capacity demand
code
14
The frequency corresponding to the total
indoor units' amendatory capacity demand
15
The frequency after the frequency limit
16
The frequency sending to compressor
control chip
17
Indoor unit A evaporator outlet temperature
(T
2B
A)
If the temperature is lower than -9
℃
, the digital display shows “-
9.” If the temperature is higher than 70
℃
, the digital display
shows “70.” If the indoor unit is not connected, the digital display
shows: “――”
18
Indoor unit B evaporator outlet temperature
(T
2B
B)
19
Indoor unit C evaporator outlet temperature
(T
2B
C)
20
Indoor unit D evaporator outlet temperature
(T
2B
D)
21
Indoor unit E evaporator outlet temperature
(T
2B
E)
22
Indoor unit A room temperature (T
1
A)
If the temperature is lower than 0
℃
, the digital display shows “0.”
If the temperature is higher than 50
℃
, the digital display shows
“50.” If the indoor unit is not connected, the digital display shows:
“――”
23
Indoor unit B room temperature (T
1
B)
24
Indoor unit C room temperature (T
1
C)
25
Indoor unit D room temperature (T
1
D)
26
Indoor unit E room temperature (T
1
E)
27
Indoor unit A evaporator temperature (T
2
A)
If the temperature is lower than -9
℃
, the digital display shows “-
9.” If the temperature is higher than 70
℃
, the digital display
shows “70.” If the indoor unit is not connected, the digital display
shows: “――”
28
Indoor unit B evaporator temperature (T
2
B)
29
Indoor unit C evaporator temperature (T
2
C)
30
Indoor unit D evaporator temperature (T
2
D)
31
Indoor unit E evaporator temperature (T
2
E)
32
Condenser pipe temperature (T3)
33
Outdoor ambient temperature (T4)
34
Compressor discharge temperature (TP)
The display value is between 30–129
℃
. If the temperature is
lower than 30
℃
, the digital display shows “30.” If the temperature
is higher than 99
℃
, the digital display shows single and double
digits. For example, if the digital display shows “0.5", the
compressor discharge temperature is 105
℃
.
35
AD value of current
The display value is a hex number.
For example, the digital display tube shows “Cd”, it means AD
value is 205.
36
AD value of voltage
37
EXV open angle for A indoor unit
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.
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
Bit7
Frequency limit caused by IGBT
radiator
The display
value is a
hexidecimal
number. For
example, the
digital display
show 2A, then
Bit6
Frequency limit caused by PFC
Bit5
Frequency limit caused by T4.
Bit4
Frequency limit caused by T2.
Bit3
Frequency limit caused by T3.
Содержание MCH2U-18PHH2
Страница 3: ...3 MCH4U 36PHH2 WD30 metal plate 118 MCH5U 48PHH2 WE30 metal plate 125...
Страница 23: ...23 7 Wiring Diagrams 7 1 Wiring diagram of 1 drive 2 outdoor MCH2U 18PHH2...
Страница 24: ...24 7 2 Wiring diagram of 1 drive 3 outdoor MCH3U 27PHH2...
Страница 25: ...25 7 3 Wiring diagram of 1 drive 4 outdoor MCH4U 36PHH2...
Страница 26: ...26 7 4 Wiring diagram of MCH5U 48PHH2...
Страница 31: ...31 PCB board of MCH5U 48PHH2...
Страница 32: ...32 IPM board of MCH5U 48PHH2...
Страница 44: ...44...
Страница 46: ...46 Operating Standby Pic 2 IPM for 2 zone 3 zone...
Страница 47: ...47 PIC3 Main board LED when power on and unit standby Pic 2 IPM for5 zone Power Standby Operating...
Страница 54: ...54 8 4 1 7 Over voltage or under voltage protection diagnosis and solution...
Страница 59: ...59...
Страница 61: ...61 Operating Standby Pic 2 IPM board for 2 zone 3 zone...
Страница 62: ...62 PIC3 Main board LED when power on and unit standby Pic 2 IPM for5 zone Power Standby Operating...
Страница 64: ...64...
Страница 68: ...68 IPM board for 2 zone 3 zone...
Страница 70: ...70 IPM board for 4 zone...
Страница 73: ...73 Two ports of the inductance Inductance...
Страница 76: ...76 Vs Vcc Vsp FG...
Страница 78: ...78...
Страница 79: ...79...
Страница 81: ...81...
Страница 82: ...82...
Страница 84: ...84...
Страница 85: ...85...
Страница 87: ...87...
Страница 98: ...98 6 EXV check Disconnect the connectors...
Страница 99: ...99 Resistance to EXV coil Color of lead wire Normal Value Red Blue About 50 Red Yellow Brown Orange Brown White...
Страница 100: ...100 Red Blue Red Yellow...
Страница 101: ...101 Brown Orange...
Страница 102: ...102 Brown White...
Страница 112: ...112 Screws of front panel Screws of right rear panel Screws of front panel...
Страница 120: ...120 Screws of front panel Screws of right rear panel Screws of front panel...