DCM19: Completed 11/19 systems, will need to return to complete maintenance on systems 11-16, 5,19. Completed maintenance on systems 1-4, 6-10, 17, 18. Replaced filters (9) 22x22x1 (2)20x20x1. All systems other than #2 are fully functional and operating within manufacturer specifications at this time. System #2 is throwing a fault code for emergency heat had to adjust configuration for the kw from 25kw to 5kw, heat strips were rated for 5kw. System is now functional and operating within manufacturer specification at this time. Placed thermostats to 64 degrees heat. Maintenance checklist attached.