Itr(Heating) - LG MULTI V IV ARNU07GTU 2 Series Service Manual

Guaranteed Temperature range(Error occurs out of guaranteed temperature range)
IDU : 18 ~ 32 °C
ODU : 0~ 43 °C
In case the function is not used, set the dip S/W OFF and reset the power.
NOTE : If occur the indoor unit error, that indoor unit operate in fan mode.
But don't display the indoor unit number that occurred an error.

4.7 ITR(Heating)

This function is checking process for normal operation of parts and system On operating system.
• Saved data can check using LGMV.
Copyright ©2013 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Start
All IDU operation on Fan mode
on 1 minute
Check Temp. Condition
All IDU operation(refrigerant
check) and save data
(All-1) IDU operation and save data
1 IDU operation and save data
Switchover 4way valve
Judge IDU EEV
Stop operation and judge
the result
System off
- 37 -
Function
LGE Internal Use Only