Mitsubishi Electric PUHZ-HW112YHA-BS, Service Manual

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Freq uency control state
2
Display
Discharge temperature Condensation temperature Anti-freeze Heatsink temperature
overheat prevention overheat prevention protection control overheat prevention
0
1
Controlled
2 Controlled
3 Controlled Controlled
4 Controlled
5 Controlled Controlled
6 Controlled Controlled
7 Controlled Controlled Controlled
8 Controlled
9 Controlled Controlled
A Controlled Controlled
b Controlled Controlled Controlled
C Controlled Controlled
d Controlled Controlled Controlled
E Controlled Controlled Controlled
F Controlled Controlled Controlled Controlled
1 2 - 2 - 1 . D etail C ontents in R eq uest C ode
[ O p eration state] ( R eq uest c ode
"0 " )
Data display
Ex ample) Req uest code "004"
Discharge temperature 69
:
Refrigerant address "00"
B : Refrigerant address
A: Maintenance mode display
C: Data display area
D: Req uest code display area
A
B
C
D
C 4
Relay output state
Operation mode
[ I ndoor unit – C ontrol state] ( R eq uest c ode "5 0 ")
Data display
Operation mode
Display Operation mode
0 STOP FAN
C COOL DRY
H HEAT
d DEFROST
Relay output state
Display
Power currently
Compressor Four-way valve Solenoid valve
supplied to compressor
Unit No. 4 state
Unit No. 3 state
Unit No. 2 state
Unit No. 1 state
Display State
0 Normal
1 Preparing for heat operation
2 –
3 –
4 Heater is ON.
5 Anti-freeze protection is ON.
6 Overheat protection is ON.
7 Req uesting compressor to turn OFF
F There are no corresponding units.
[ O utdoor unit – C ontrol state] ( R eq uest c ode "5 1 ")
Data display State
0 0 0 0 Normal
0 0 0 1 Preparing for heat operation
0 0 0 2 Defrost
[ C omp ressor – F req uenc y c ontrol state] ( R eq uest c ode "5 2 ")
Data display
0 0
Freq uency control state
2
Freq uency control state
1
Freq uency control state
1
Display Current limit control
0 No current limit
1 Primary current limit control is ON.
2 Secondary current limit control is ON.
–
ON
ON
0
1
2
3
4
5
6
7
8
A
–
ON
ON
ON
ON
–
ON
ON
ON
ON
ON
–
ON
ON
ON
ON
OCH526C