LI018CO-160T432 LI024CO-160T432
Outdoor Unit
●
1. Input Parameter Compensation and Calibration
(1) Check the ambient temperature compensation function Indoor ambient temperature compensation function.
a. In cooling mode, the indoor ambient temperature participating in computing control = (T
)
compensation
b. In heating mode, the indoor ambient temperature participating in computing control= (T
)
compensation
(2) Check effective judgment controls of parameters
Effective judgment function of the outdoor exhaust temperature thermo-bulb When conditions a and b are satisfied, the outdoor exhaust
temperature thermo-bulb is judged not to be connected into place, the mainboard of outer units will display failure of the outdoor exhaust
temperature thermo-bulb (not connected into place), stop the machine for repairing, and resume the machine by remote controls of ON/
OFF.
a. Judgment of exhaust detection temperature change:
After the compressor starts up and runs for 10 minutes, if the compressor frequency f ≥ 40Hz, and the rising value Texhaust (T
- T
up for 10 minutes)
exhaust (before start-up)
once when the power is on the first time).
b. Comparative judgment of exhaust detection temperature and condenser detection temperature (T
, T
= T
mode
pipe temperature
indoor pipe temperature in heating mode
40Hz, and T
≥(T
pipe temperature
once when power is on the first time).
2. Basic Functions
(1) Cooling Mode
1. Conditions and processes of cooling operation:
(1) If the compressor is shut down, and [Tsetup – (T
for cooling, the cooling operation will start;
(2) During operations of cooling, if 0ºC ≤ [Tsetup – (T
will be still running;
(3) During operations of cooling, if 2ºC ≤ [Tsetup – (T
stop after reaching the temperature point.
2. Temperature setting range
(1) If T
≥ [T
outdoor ambient temperature
(2) If T
outdoor ambient temperature
minimum setting temperature for outer units judgment is 25ºC .
(2) Dehumidifying Mode
1. Conditions and processes of dehumidifying operations: Same as the cooling mode;
2. The temperature setting range is: 16~30ºC ;
(3) Air-supplying Mode
1. The compressor, outdoor fans and four-way valves are switched off;
2. The temperature setting range is: 16~30ºC.
(4) Heating Mode
1. Conditions and processes of heating operations: (Tindoor ambient temperature is the actual detection temperature of indoor environment
thermo-bulb, Theating indoor ambient temperature compensation is the indoor ambient temperature compensation during heating
operations)
(1) If the compressor is shut down, and [(T
enter into heating operations for heating;
(2) During operations of heating, if 0ºC ≤ [(T
will be still running;
(3) During operations of heating, if 2ºC ≤ [(T
stop after reaching the temperature point.
2. The temperature setting range in this mode is: 16~30ºC .
26
) < 2ºC , the outdoor exhaust temperature thermo-bulb can be judged not to be connected into place (judging
): After the compressor starts up and runs for 10 minutes, if the compressor frequency f ≥
), the outdoor exhaust temperature thermobulb can be judged not to be connected into place (judging
exhaust+3
indoor ambient temperature
indoor ambient temperature
indoor ambient temperature
], the temperature can be set at: 16~30ºC (Cooling at room temperature);
low-temperature cooling temperature
< [T
low-temperature cooling temperature
indoor ambient temperature
indoor ambient temperature
indoor ambient temperature
– ⊿ T
cooling indoor ambient temperature compensation)
– ⊿ T
cooling indoor ambient temperature compensation)
– ⊿ T
cooling indoor ambient temperature compensation)
], the temperature can be set at: 25~30ºC (Cooling at low temperature), that is, the
– ⊿ T
heating indoor ambient temperature compensation
– ⊿ T
heating indoor ambient temperature compensation
– ⊿ T
heating indoor ambient temperature compensation
– ⊿ T
indoor ambient temperature
cooling indoor ambient temperature
– ⊿ T
indoor ambient temperature
heating indoor ambient temperature
= T
pipe temperature
outdoor pipe temperature in cooling
] ≤ 0.5 , start up the machine
] < 2 , the cooling operation
], the cooling operation will
) –T
] ≤ 0.5 , start the machine to
setup
) –T
] < 2 , the heating operation
setup
) –T
], the heating operation will
setup
Installation and Maintenance
Service Manual
exhaust (after start-