Samsung MR-DH00 Technical Data Book page 192

Control Systems
Test run tool for system air conditioner installation
VII VII
1. S-Checker
MIM-C10N
6) Main function
Checking the communication
Through Comm. Check menu, communication status between indoor/outdoor unit can be checked.
Indoor unit can be connected to S-checker alone without outdoor unit, to check the communication status of indoor unit.
Setting the indoor unit option
You can check the option code of indoor unit from the S-checker.
Option code setting can be applied to multiple numbers of indoor unit at once.
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