DAIKIN FXDQ07MVJU FXDQ09MVJU FXDQ12MVJU FXDQ18MVJU FXDQ24MVJU Manual

About this manual

This document is an installation manual for Daikin VRV system inverter air conditioners, specifically the ceiling-mounted duct type low static pressure units. It covers models FXDQ07MVJU, FXDQ09MVJU, FXDQ12MVJU, FXDQ18MVJU, and FXDQ24MVJU. The guide provides instructions for selecting the installation site, preparing for installation, installing the indoor unit, and performing refrigerant piping and drain piping work.

What's inside

• SAFETY CONSIDERATIONS
• BEFORE INSTALLATION
• SELECTING INSTALLATION SITE
• PREPARATIONS BEFORE INSTALLATION
• INDOOR UNIT INSTALLATION
• REFRIGERANT PIPING WORK
• DRAIN PIPING WORK
• INSTALLING THE DUCT
• ELECTRIC WIRING WORK
• FIELD SETTING AND TEST RUN

Frequently asked questions

What type of refrigerant must be used for this unit?

You must check the type of R410A refrigerant to be used before installing the unit, as using an incorrect refrigerant will prevent normal operation.

How long must you wait after stopping operation before turning off the power?

You must always wait at least five minutes before turning off the power immediately after stopping operation.