Mitsubishi Heavy Industries FDT90VNPWVH Service Manual page 61

(5) Check of anomalous operation data with the remote control
(a) In case of RC-EX3A remote control
[Operating procedure]
➀ On the TOP screen, touch the buttons in the order of "Menu" ➝ "Service setting" ➝ "Service & Maintenance" ➝
"Service password" ➝ "Set" ➝ "Error display" ➝ "Error history".
➁ When only one indoor unit is connected to the remote control, followings will be displayed.
1. When there is any anomaly: "Loading. Wait a while" is displayed, followed by the operation data at the occurrence
of anomaly
〈 Contents of display 〉
・ Error code
・ Number and data item
2. When there is no anomaly: "No anomaly" is displayed, and this mode is terminated.
➂ When two or more indoor units are connected to the remote control, followings will be displayed.
1. When there is any anomaly: If the unit having anomaly is selected on the "Select IU" screen, "Loading. Wait a
while" is displayed, followed by the operation data at the occurrence of anomaly.
〈 Contents of display 〉
・ Indoor unit No.
・ Error code
・ Number and data item
2. When there is no anomaly: "No anomaly" is displayed, ant this mode is terminated.
Note (1) When the number of connected units cannot be shown in a page, select "Next".
➃ If you press [RUN/STOP] button, the display returns to the TOP screen.
◎ If you touch "Back" button on the way of setting, the display returns to the last precious screen.
Note (1) When two remote controls are used to control indoor units, the check of anomaly operation data can be made on the master remote control
■ Anomaly operation data (Corresponding data may not be provided depending on models. Such items will not be displayed.)
Number
01
02
03
04
05
06
07
08
09
10
11
12
13
21
22
23
24
25
No. Contents of display
26
"0" Normal
27
"1" Discharge pipe temperature protection control
28
"2" Discharge pipe temperature anomaly
29
"3" Current safe control of inverter primary current
30
"4" High pressure protection control
31
"5" High pressure anomaly
32
"8" Anti-frost prevention control
33
"9" Current cut
34
"11" Power transistor anomaly (Overheat)
"12" Compression ratio control 35
"13" Spare 36
"14" Dewing prevention control
37
"15" Current safe control of inverter secondary current
38
"16" Stop by compressor rotor lock
39
"17" Stop by compressor startup failure
"18" Active filter anomaly
only. (It cannot be operated from the slave remote control.)
Data Item
(Operation Mode)
(Set Temperature)
(Return Air Temperature)
(Remote Control Temperature Sensor Tempeature)
(Indoor Heat Exchanger Temperature Sensor / U Bend)
(Indoor Heat Exchanger Temperature Sensor /Capillary)
(Indoor Heat Exchanger Temperature Sensor /Gas Header)
(Indoor Unit Fan Speed)
(Frequency Requirements)
(Response Frequency)
(Pulse of Indoor Unit Expansion Value)
(Total Running Hours of The Indoor Unit)
(Supply Air Temperature)
(Outdoor Air Temperature)
(Outdoor Heat Exchanger Temperature Sensor)
(Outdoor Heat Exchanger Temperature Sensor)
(Compressor Frequency)
(High Pressure)
Reference page
(Low Pressure)
(Discharge Pipe Temperature)
P44 (11). (b). (i)
(Comp Bottom Temperature)
P44 (11). (b). (ii)
(Current)
P45 (12)
(Target Super Heat)
P42 (6). (c), P43, (8), (b)
(Super Heat)
P44 (11)
(Discharge Pipe Super Heat)
(Protection State No. of The Compressor)
P45 (13)
(Outdoor Unit Fan Speed)
(63H1 On/Off)
(Defrost Control On/Off)
(Total Running Hours of The Compressor)
(Pulse of The Outdoor Unit Expansion Valve EEVC)
(Pulse of The Outdoor Unit Expansion Valve EEVH)
Number 33 Details of Compressor protection status No.
Models FDC90, 100VNP-W
No. No. Contents of display Contents of display
"0" "0" Normal Normal
"1" "1" Discharge pipe temperature protection control Discharge pipe temperature protection control
"2" "2" Discharge pipe temperature anomaly Discharge pipe temperature anomaly
"3" Current safe control of inverter primary current
"3" Current safe control of inverter primary current
"4" High pressure protection control
"4" High pressure protection control
"5" High pressure anomaly
"5" High pressure anomaly
"8" Anti-frost prevention control
"6" Low pressure protection control
"9" Current cut
"7" Low pressure anomaly
"11" Power transistor anomaly (Overheat)
"8" Anti-frost prevention control
"12" Compression ratio control "9" Current cut
"13" Spare "10" Power transistor protection control
"14" Dewing prevention control
"11" Power transistor anomaly (Overheat)
"15" Current safe control of inverter secondary current
"12" Compression ratio control
"16" Stop by compressor rotor lock
"13" Spare
"17" Stop by compressor startup failure
"14" Dewing prevention control
"18" Active filter anomaly
"15" Current safe control of inverter secondary current
"16" Stop by compressor rotor lock
Note(1) Operation data display on the remote control.
"17" Stop by compressor startup failure
Data is dispalyed until canceling the protection control.
In case of multiple protections controlled, only the younger No. is displayed.
Note(2) Common item.
In heating mode.
During protection control by the command signal for reducing compressor
frequency from indoor unit, No. "4" is displayed.
In cooling and dehumidifying mode.
During protection control by the command signal for reducing compressor
frequency from indoor unit, No. "8" is displayed.
60
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'19 • PAC-SM-334
Reference page
Reference page
Note(1) Operation data dis Note(1) Operation data dis
P44 (11). (b). (i)
P.144 .(a).(i)
Note(2) Common item. Note(2) Common item.
P44 (11). (b). (ii)
P.144 .(a).(ii)
P.146 P45 (12) .(g)
P42 (6). (c), P43, (8), (b) P.144 .(b).(i) P.145 .(c).(i)
P44 (11) P.144 .(b).(ii)
P.145 .(e).(i)
P45 (13)
P.145 .(e).(ii)
P.146 .(k)
P.146 .(g)
P.146 .(h)
P.146 .(i)
P.145 .(f)
P.147 .(l)
P.146 .(g)
P.147 .(p)
Data is dispalyed Data is dispalyed
In case of multiple In case of multiple
In heating mode
In heating mode
During protectio
During protectio
frequency from i
frequency from i
In cooling and d
In cooling and d
During protectio
During protectio
frequency from i
frequency from i