Building Air Conditioning Control SystemPower supply unitModel: PAC-SC50KUAInstallation ManualBefore using the controller, please read this Installation Manual carefully to ensurecorrect operation. Store this Installation Manual in a location that is easy to find.Contents1. Safety precautions .................................................. 12. Product feature ........................................................ 21. Specification .................................................... 22. Appearance ..................................................... 23. Installation ............................................................... 31. Parts prepared at site ...................................... 32. Installation space and the direction ................. 33. Unit installation ................................................ 44. Wiring ...................................................................... 41. Cover Removal and Installation ....................... 42. Power line ........................................................ 53. DC Power Supply and M-NET TransmissionLine .................................................................. 55. Allowable length of M-NET Transmission Lines ...... 6