2.1 Detail Contents in Request Code
G [Operation state] (Request code "0")
Data display
C 4
Operation mode
Display
Operation mode
0
STOP · FAN
C
COOL · DRY
H
HEAT
d
Defrost
G [Indoor unit – Control state] (Request code "50")
Data display
G [Outdoor unit – Control state] (Request code "51")
Data display
0
0
0
0
Normal
0
0
0
1
Preparing for heat operation.
0
0
0
2
Defrost
G [Compressor – Frequency control state] (Request code "52")
Data display
0
0
Frequency 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.
A
B
D
Relay output state
Relay output state
Operation mode
Unit No. 4 state
Unit No. 3 state
Unit No. 2 state
Unit No. 1 state
State
Frequency control state 2
Frequency control state 2
Frequency control state 1
C
Power currently
Display
supplied to compressor
0
—
1
2
3
4
5
6
7
8
ON
A
ON
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
Requesting compressor to turn OFF.
F
There are no corresponding units.
Discharge temperature Condensation temperature
Display
overheat prevention
0
1
Controlled
2
3
Controlled
4
5
Controlled
6
7
Controlled
8
9
Controlled
A
b
Controlled
C
d
Controlled
E
F
Controlled
Example) Request code "004"
Discharge temperature 69 °C
Refrigerant address "00"
B: Refrigerant address
C: Data display area
D: Request code display area
Compressor
Four-way valve Solenoid valve
—
—
ON
ON
ON
ON
ON
ON
ON
ON
ON
Anti-freeze
overheat prevention
protection control
Controlled
Controlled
Controlled
Controlled
Controlled
Controlled
Controlled
Controlled
Controlled
Controlled
Controlled
Controlled
Controlled
Controlled
Controlled
Controlled
—
ON
ON
ON
ON
Heat sink temperature
overheat prevention
Controlled
Controlled
Controlled
Controlled
Controlled
Controlled
Controlled
Controlled
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