Installed a new daikin 2 ton multiport condenser with 2 1 ton indoor units over the weekend. Model #'s are in the truck. I found both units frozen up yesterday. Pulled the entire charge, leak checked to 400psi and pulled down to 300 microns. Weighed in nameplate charge and started system back up. Pressures were good, 120-130 suction. I had to leave due to bank closing. I show up today and find it locked out on freeze fault. Reset unit and watched it run for a while. What i found was when either of the indoor units are shut off by the remote, the one circuit that is still running quickly drops it's suction pressure and will freeze. I didn't trace the electrical but did push the switch at the outdoor to "check wiring" and didnt recieve a fault. Any thoughts? TIA Fitz....