Have a Raucc60 Trane condensing unit on process chiller application. In low temperatures we are over condensing causing reset relays to trip out. Unit has all stock low ambient controls, jumped out controls to monitor and found during start up of a circuit pressures drop radically before adjusting thus causing the reset relays to trip, which is normal. However, has anyone retro fitted the low ambient controls on one of these? I was thinking of a penn head pressure fan controller instead?