Service manual

Function Details ESIE12-06
102 Function and Control
3.2 Outdoor Unit
3.2.1 Abnormal Stop
When the following items show abnormal values, the thermostat turns OFF and error is
determined based on the number of retry in order to protect the compressor and other devices.
3.2.2 Restart Standby
To prevent compressor from frequent ON/OFF and equalize pressure in refrigerant line,
conducts forced thermostat OFF for 3 minutes after compressor stopping. Moreover, outdoor
unit fan conducts residual operation for a period of time to expedite equalization and prevent
refrigerant from entering in evaporator.
Item Criteria Number of retry
Low pressure 0.12 MPa or less continues for 5 minutes 10 times in 200 minutes
High pressure
HPS activated or
over 3.92 MPa continues for 1 minute
15 times in 300 minutes
Discharge pipe
temperature
RZQG71L
Temperature over 110°C continues for 15
minutes or temperature exceeds 125°C
10 times in 200 minutes
RZQG100-140L
Temperature over 115°C continues for 10
minutes or temperature exceeds 125°C
Power supply Negative-phase-sequence power None (No retry)
RZQG71L RZQG100-140L
A480 480
B480 480
C480 480
D480 480
E480 480
F60 10
G60 30
H30 30
I30 30
OFF
OFF
ON
ON
B
A
C
D
E
0
Moves to "Stop" or "Starting control"
after completion of "Restart standby".
Restart standby completeThermostat OFF
Compressor
Operation
complete
Cooling
Heating
Outdoor unit fan
For 3 min.
F sec.
0
Electronic
expansion valve
Residual
operation
G
H
sec. sec.sec.
I