CoolRemote app makes you VRV / VRF air conditioning smarter and more accessible and it's Free* • Monitor and Control HVAC (air conditioning) units • Direct bi-directional access to HVAC internal communication lines • Full control over your indoor units; • On/Off control (individual or batch) • Set Temperature and Room temperature info • HVAC Operation modes (Cool / Heat / Fan / Dry / Auto), • Fan speed controls. • Louver modes control • Robust and easy to use Scheduler function, unlimited ac