1VRV SYSTEM Inverter Air Conditioners Installation manualEnglishCONTENTS1. SAFETY CONSIDERATIONS ………………………………………………………………12. BEFORE INSTALLATION ……………………………………………………………………33. SELECTING INSTALLATION SITE …………………………………………………………54. INDOOR UNIT INSTALLATION………………………………………………………………75. REFRIGERANT PIPING WORK ………………………………………………………… 106. DRAIN PIPING WORK …………………………………………………………………… 137. ELECTRIC WIRING WORK ……………………………………………………………… 148. WIRING EXAMPLE AND HOW TO SET THE REMOTE CONTROLLER …………… 159. FIELD SETTINGS ………………………………………………………………………… 2010. TEST OPERATION ………………………………………………………………………… 21SAFETY CONSIDERATIONS1.Please read these “SAFETY CONSIDERATIONS” carefully before installing air conditioning equipment andbe sure to install it correctly. After completing the installation, make sure that the unit operates properly dur-ing the start-up operation.Please instruct the customer on how to operate the unit and keep it maintained.Also, inform customers that they should store this installation manual along with the operation manual forfuture reference.This air conditioner comes under the term “appliances not accessible to the general public”.Meaning of danger, warning, caution and note symbols.DANGER ...........Indicates an imminently hazardous situation which,if not avoided, will result in deathor serious injury.WARNING .........Indicates a potentially hazardous situation which, if not avoided, could result indeath or serious injury.CAUTION ..........Indicates a potentially hazardous situation which, if not avoided, may result in minoror moderate injury. It may also be sued to alert against unsafe practices.NOTE .................Indicates situation that may result in equipment or property-damage-only accidents.