Mitsubishi Electric CAHV-R450YA-HPB Service Manual page 141

[ X Troubleshooting ]
Time of data storage before error
Inlet water temp (Twi )
Outlet water temperature (Two)
Discharge refrigerant temperature TH1
Suction refrigerant temperature TH2
Shell temperature TH3
Air-side heat exchanger outlet refrigerant temperature TH4
Outside temperature TH9
Inlet water temperature TH10
Outlet water temperature TH11
External water sensor temperature 1 TH14
External water sensor temperature 2 TH15
High pressure HP
Low pressure LP
THL temperature
Water temperature setting using an external analog input (4-20 mA Current input)
I u(U-phase current)(Compressor)
I w(W-phase current)(Compressor)
I dc(Bus current)(Compressor)
V dc(Bus voltage)(Compressor)
I u(U-phase current)(Fan)
I w(W-phase current)(Fan)
I dc(Bus current)(Fan)
V dc(Bus voltage)(Fan)
Suction SH (target)
Compressor frequency (actual frequency)
Suction SH
Shell bottom SH
Operating frequency of the fan (actual frequency)
Opening of the LEV1 on the main circuit
Injection LEV opening
Discharge SH (target)
Discharge SH
Target water temperature
Water temperature setting using an external analog input (0-10 V or 2-10 V Voltage input)
Water temperature setting using an external analog input (1-5 V Voltage input)
(Note1) Each circuit board displays error data of its own unit and not other units.
(Note2) "Before error" is defined as the period between 19 minutes before the occurrence of an error up to immediately before the occurrence of the error.
(Note3) When the input type is selected. When the input type is not selected = 0
HWE22020
Item
- 132 -
Unit and circuit type
Item
LED display
code
Main unit Sub unit
c01 First decimal place
c02 First decimal place
c03 First decimal place
c04 First decimal place
c05 First decimal place
c06 First decimal place
c07 First decimal place
c08 First decimal place
c09 First decimal place
c10 First decimal place
c11 First decimal place
c12 Second decimal place
c13 Second decimal place
c14 First decimal place
c15 First decimal place (Note3) Fixed to 0
c16 First decimal place
c17 First decimal place
c18 First decimal place
c19 Integer
c20 First decimal place
c21 First decimal place
c22 First decimal place
c23 Integer
c24 First decimal place
c25 Integer
c26 First decimal place
c27 First decimal place
c28 Integer
c29 Integer
c30 Integer
c31 First decimal place
c32 First decimal place
c33 First decimal place
c35 First decimal place (Note3) Fixed to 0
c36 First decimal place (Note3) Fixed to 0
Fixed to 0
Fixed to 0
GB