Tech preformed CMA INSPECTION on 4 Split Systems, 2 package units, 1 Air Makeup unit and 1 Exhaust Fan. Tech did find that Split Systems #1 and #2 had frozen evaporator coils. Tech found that thermostats were set to low temperatures and in cool mode with outside temperatures below 50 degrees causing evaporator coils to freeze up. Tech believes the power outage at facility that happened a few days prior to service caused the thermostats to reset to factory settings. Tech thawed coils to continue inspection. Tech also installed customer supplied batteries in thermostats to prevent this from happening again. Both systems are operating within specifications after evaporator coils where thawed. Package HP #6 ( kitchen ) was found to be low in refrigerant due to leak found in evaporator coil. Due to age of unit, Tech recommends replacing system. All other systems are operating within specifications at this time. Tech has attached SYSTEM PERFORMANCE REPORTS to invoice along with pictures.