Service Manual

96
OCH636B
Frequency control state 2
Display
Discharge temperature Condensation temperature Anti-freeze Heat sink 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
13-2-1. Detail Contents in Request Code
[Operation state] (Request code ":0")
Data display
Example) Request code "004"
Discharge temperature 156°F
Refrigerant address "00"
C4
Relay output state
Operation mode
[Indoor unit – Control state] (Request code :" 50 ")
Data display
Operation mode
Display Operation mode
0 STOP • FAN
C COOL • DRY
H HEAT
d DEFROST
Relay output state
Display
Power currently
Compressor 4-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 Requesting compressor to turn OFF.
F There are no corresponding units.
[Outdoor unit – Control state] (Request code ":51")
Data display State
0 0 0 0 Normal
0 0 0 1 Preparing for heat operation.
0 0 0 2 Defrost
[Compressor – Frequency control state] (Request code ":52")
Data display
00
Frequency control state
2
Frequency control state
1
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.
–
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
Request: SELECT
Request code
Ref.address
Request code
Cursor