Daikin RWEYQ8T9Y1B Installation And Operation Manual

Also see for RWEYQ10T9Y1B: Installer and user guide Installer and user reference guide Installation and operation manual

Contents

13 Maintenance and serviceInstallation and operation manual32RWEYQ8~14T9V1B+RWEYQ8~14T9Y1BVRV IV water-cooled system air conditioner4P452190-1A – 2017.04To adjustFor programming temperature, fan speed and air flow direction referto the operation manual of the user interface.12.3 Using the dry program12.3.1 About the dry program▪ The function of this program is to decrease the humidity in yourroom with minimal temperature decrease (minimal room cooling).▪ The micro computer automatically determines temperature andfan speed (cannot be set by the user interface).▪ The system does not go into operation if the room temperature islow (<20°C).12.3.2 To use the dry program (WITHOUT cool/heat changeover remote control switch)To start1 Press the operation mode selector button on the user interfaceseveral times and select (program dry operation).2 Press the ON/OFF button of the user interface.Result: The operation lamp lights up and the system startsoperating.3 Press the air flow direction adjust button (only for double-flow,multi-flow, corner, ceiling-suspended and wall-mounted). Referto "12.4 Adjusting the air flow direction" on page 32 for details.To stop4 Press the ON/OFF button on the user interface once again.Result: The operation lamp goes out and the system stopsoperating.NOTICEDo not turn off power immediately after the unit stops, butwait for at least 5 minutes.12.3.3 To use the dry program (WITH cool/heatchangeover remote control switch)To start1 Select cooling operation mode with the cool/heat changeoverremote control switch.112 Press the operation mode selector button on the user interfaceseveral times and select (program dry operation).3 Press the ON/OFF button of the user interface.Result: The operation lamp lights up and the system startsoperating.4 Press the air flow direction adjust button (only for double-flow,multi-flow, corner, ceiling-suspended and wall-mounted). Referto "12.4 Adjusting the air flow direction" on page 32 for details.To stop5 Press the ON/OFF button on the user interface once again.Result: The operation lamp goes out and the system stopsoperating.NOTICEDo not turn off power immediately after the unit stops, butwait for at least 5 minutes.12.4 Adjusting the air flow directionRefer to the operation manual of the user interface.12.4.1 About the air flow flapDouble flow+multi-flow unitsCorner unitsCeiling suspended unitsWall-mounted unitsFor the following conditions, a micro computer controls the air flowdirection which may be different from the display.The air flow direction can be adjusted in one of the following ways:▪ The air flow flap itself adjusts its position.▪ The air flow direction can be fixed by the user.▪ Automatic and desired position .WARNINGNever touch the air outlet or the horizontal blades while theswing flap is in operation. Fingers may become caught orthe unit may break down.NOTICE▪ The movable limit of the flap is changeable. Contactyour dealer for details. (only for double-flow, multi-flow,corner, ceiling-suspended and wall-mounted).▪ Avoid operating in the horizontal direction . It maycause dew or dust to settle on the ceiling or flap.12.5 Setting the master user interface12.5.1 About setting the master user interfaceThe displays of slave user interfaces show (change-overunder centralised control) and slave user interfaces automaticallyfollow the operation mode directed by the master user interface.Only the master user interface can select heating or cooling mode.13 Maintenance and serviceNOTICENever inspect or service the unit by yourself. Ask aqualified service person to perform this work.WARNINGNever replace a fuse with a fuse of a wrong ampere ratingsor other wires when a fuse blows out. Use of wire orcopper wire may cause the unit to break down or cause afire.