LG MULTI V 5 Manual Book page 123

LGE Internal
Back Up
Back Up
5.4 Back Up
This function is used when backing up outdoor units or compressors.
This function is used when backing up outdoor units or compressors.
■ Setting the function
■ Setting the function
Back Up
Back Up
• This function is used with heat pump and heat recovery.
■ Manual Back Up
■ Manual Back Up
This function allows the system to operate in case of inverter compressor failure by backing up com-
This function allows the system to operate in case of inverter compressor failure by
pressor manually.
backing up compressor manually.
Service can be asked by displaying error to the customer every 6 hours.
Service can be asked by displaying error to the customer every 6 hours.
• Option Setting
• Option Setting
Option
Option
Unit
Unit
Inv1
Inv1
Inv2
Inv2
• Operation Method
• Operation Method
1) Check which compressor is broken. (refer to "Trouble Shooting Guide")
1) Check which compressor is broken. (refer to "Trouble Shooting Guide")
2) Turn off the power.
2) Turn off the power.
3) Set the dip S/W of defective outdoor unit.
3) Set the dip S/W of defective outdoor unit.
4) Turn on the power.
4) Turn on the power.
ex1) Inverter SLAVE1 compressor fail of Slave1  option "Inv1" selection
ex1) Inverter SLAVE1 compressor fail of Slave1 → option "Inv1" selection
ex2) Unit fail of Slave2 → option "Unit" selection
ex2) Unit fail of Slave2  option "Unit" selection
* In 1comp model, setting the 'inv2' can not be used. * In 1comp model, setting the 'inv2' can not be used.
* If you make a backup of compressor in 1comp model, the outdoor unit is automatically backed up. * If you make a backup of compressor in 1comp model, the outdoor unit is automatically backed up.
• Manual back up function mode is applied after push the main PCB reset button.
· Manual back up function mode is applied after push the main PCB reset button.
• You must set the function of the outdoor unit to be backed up.
· You must set the function of the outdoor unit to be backed up.
• If you want to disable the backup, please set the 'off'.
· If you want to disable the backup, please set the 'off'.
• This function is a temporary. do not forget to turn this function off after
· This function is a temporary. do not forget to turn this function off after replacing compressor. Long
replacing compressor. Long term use of this function will lead to multiple
term use of this function will lead to multiple compressor failures on the system.
compressor failures on the system.
244
_TROUBLE SHOOTING GUIDE BOOK
Use Only
Function
Function
SE 4
SE 4
Detail of function
Detail of function
Outdoor unit back up
Outdoor unit back up
Inverter compressor No.1 back up
Inverter compressor No.1 back up
Inverter compressor No.2 back up
Inverter compressor No.2 back up
LGE Internal
Back Up
■ Auto Back Up
■ Auto Back Up
This function allows the system to operate in case of inverter compressor failure by
This function allows the system to operate in case of inverter compressor failure by backing up com-
backing up compressor automatically.
pressor automatically.
Service can be asked by displaying error to the customer every 6 hours.
Service can be asked by displaying error to the customer every 6 hours.
ex) Slave1 unit Inverter compressor 1 start failure error No. 21 occur
• Request service immediately if error occurs.
· Request service immediately if error occurs.
• Auto back up is set up to 1 inverter compressor.
· Auto back up is set up to 1 inverter compressor.
• If Inverter compressor auto back up starts, error displays for 10 min. every 6 hours.
· If Inverter compressor auto back up starts, error displays for 10 min. every 6 hours.
• Error displays continuously at the corresponding ODU.
· Error displays continuously at the corresponding ODU.
Use Only
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