17
Technical Information
Service Manual
14. Refrigerant Recovery Function (Applicable for Moving the Unit or Maintaining the Unit)
(1) Start up refrigerant recovery function
Set cooling mode with remote controller within 5min after energization, adjust temperature at 16ºC and press light button on remote
controller for 3 times successively to any one indoor unit within 3s and then the complete unit will enter into refrigerant recovery status.
All indoor units display Fo. Maintenance person close all liquid valves. After 5min, withstand the thimble of all checking valves with
tools one by one. If there’s no refrigerant spraying out, close corresponding valve immediately, turn off the unit with remote controller
and then remove the connection pipe.
(2) Exit refrigerant recovery function
During refrigerant recovery process, if any one indoor unit receives any remote control signal or refrigerant recovery function has
operates for about 25min, refrigerant recovery function will be exited automatically. If the complete unit is at standby status before
refrigerant recovery, the complete unit will still at standby status after refrigerant recovery. If the complete unit is at ON status, the unit
will operate according to original operation mode.
(3) After entering refrigerant recovery function: Indoor unit operates at cooling mode. Fan speed is super-high speed and set
temperature is 16°C. Horizontal will open at the minimum operation angle.
15. Mode Shock
When there’s indoor unit under operation, if start up other indoor unit and the setting mode is inconsistent with that indoor unit, mode
shock will occur. The indoor with mode shock displays “E7” and indoor fan stops operation. Corresponding relationship for mode
shock and operation status after shock is as below:
Mode relationship table for mode shock
Mode Indoor unit with mode
shock
Operation status after mode shock
Indoor unit A
Indoor unit B
Indoor unit A Indoor unit B
Cooling/drying heating
Indoor unit B
Cooling/drying Indoor fan stops operation
Heating Cooling, drying, fan Indoor unit B Heating Indoor fan stops operation
Fan Heating Indoor unit A Indoor fan stops operation Heating
Note: (1) Indoor unit A: The indoor unit under operation currently
(2) Indoor unit B: The indoor unit is tuned on latter
(3) If set auto mode with remote controller, the complete unit will judge according to actual operation mode under auto mode.
To Next Page
Loading...