Introducing the new BluArch for Contractors app - offering the industrys most powerful, intuitive, and easy-to-use app. Whether youre on a residential service call or installing 40 units at a major site, the free BluArch apps Bluetooth capability paired with an enabled HVAC system -- makes set-up and troubleshooting simpler than ever. With BluArch and eligible air systems, you can easily: Install -Set up systems quickly and easily with the new Bluetooth setup -Monitor operating parameters from your phone while charging outdoor units -Verify system setup with access to system operating status -Quickly check for alarms Service -Diagnose active alarms and alarm history -Check system operating status -Easy step-by-step parts replacement and system setup