For Indoor UnitThis air conditioner uses the refrigerant R410A.External diameter of service port R410A: 5/16"Split System Air Conditioner85264190583000 2011INSTALLATION INSTRUCTIONSNOTECV6233187860ContentsPageIMPORTANT!Please Read Before Starting .................................. 21. GENERAL .......................................................... 41-1. Tools Required for Installation (not supplied)1-2. Accessories Supplied with Unit1-3. Optional Copper Tubing Kit1-4. Type of Copper Tube and Insulation Material1-5. Additional Materials Required for Installation2. INSTALLATION SITE SELECTION ................... 52-1. Indoor Unit2-2. Embedding the Tubing and Wiring3. HOW TO INSTALL THE INDOOR UNIT ............. 73-1. Remove the Rear Panel from the Unit3-2. Make a Hole3-3. Install the Rear Panel on the Wall3-4. Removing and Installing the Grille3-5. Shape the Indoor Side Tubing3-6. Wiring Instructions3-7. Wiring Instructions for Inter-unit Connections3-8. Mounting3-9. Drain Hose4. HOW TO TEST RUN THE AIR CONDITIONER ... 175. REMOTE CONTROLLER INSTALLATIONPOSITION ......................................................... 185-1. Mounting on a Wall6. ADDRESS SWITCH .......................................... 196-1. Address Setting of the Remote Controller7. CONNECTING A HOME AUTOMATIONDEVICE.............................................................. 208. INSTALLATION CHECK SHEET ...................... 20Model CombinationsCombine indoor and outdoor units only as listedbelow.Model No.Indoor Unit Outdoor UnitCS-MKE7NKU CU-3KE19NBUCS-MKE9NKU CU-4KE24NBUCS-MKE12NKU CU-4KE31NBUCS-MKE18NKUCS-MKE24NKUPower Source:60 Hz, single-phase, 230 / 208 VAC