PART NO. 9374584048-02INSTALLATION MANUALFor authorized service personnel only.VRF SYSTEMIR RECEIVER UNITUTB- * WBContents1. SAFETY PRECAUTIONS ............................................. 22. MAIN UNIT AND ACCESSORIES................................. 33. OPTIONAL PARTS ....................................................... 34. FUNCTIONS AND DIMENSION ................................... 35. SELECTING THE INSTALLATION LOCATION ............ 36. INSTALLING THE RECEIVER UNIT6.1. Select the wiring method ....................................... 46.2. Select the installation method ............................... 47. WIRING ......................................................................... 58. TURNING ON THE POWER......................................... 79. ERROR CODE DISPLAY .............................................. 7English