Daikin vrv III -Q Series Operation Manual

Contents

Daikin vrv III -Q Series Operation Manual Manual pdf 10 page image

6 English20.Fan speed control buttonPress this button to select the fan speed of yourpreference.21.Operation mode selector button• Press this button to select the operationmode of your preference.• Press this button to designate the masterremote controller.Refer to the chapter “6-5 SETTING THEMASTER REMOTE CONTROLLER”.22.Air flow direction adjust buttonRefer to the chapter “Operation procedure -Adjusting the air flow direction”.23.Fan only/air conditioning selector switchSet the switch to “ ” for fan only operation or to“ ” for heating or cooling operation.24.Cool/heat changeover switchSet the switch to “ ” for cooling operation or to“ ” for heating operation.25.ThermistorIt sense the room temperature around theremote controller.26.These button are used when the ventilation unitare installed (These are optional accessories)Refer to the operation manual of the ventilation unit.NOTE• Do not place the controller exposed to direct sun-light. The LCD display may get discolored, failing todisplay the data.• Never pull or twist the electric wire of a remote con-troller.It may cause the unit to malfunction.• Do not allow sharp or hard items to touch the buttonsof the remote controller.The remote controller may be damaged or break-down may occur.• In contradistinction to actual operating situations, thedisplay on figure 2 shows all possible indications.• Figure 2 shows the remote controller which isopened the cover.• For FXS, FXM, FXL and FXN, the air flow direc-tion adjust button (22) is not available and the dis-play (4) shows “NOT AVAILABLE” when pressed.5. OPERATION RANGEUse the system in the following temperature andhumidity ranges for safe and effective operation.NOTE• Cooling operation:If the air conditioner is operated continuously whilethe indoor temperature is 21°C or below and thehumidity is 80% or over, the interiors of the indoorunits may cause icing and water leakage may result.• Heating operation:The air conditioner may stop operating for the pro-tection of the machine if the outdoor temperature is21°C or over.• To avoid condensation and water dripping out theunit.If the temperature or the humidity is beyond theseconditions, safety devices may work and the airconditioner may not operate.6. OPERATION PROCEDURE• Operation procedure varies according to the com-bination of outdoor unit and remote controller.Read the chapter “What to do before operation”.• To protect the unit, turn on the main power switch6 hours before operation.And do not turn off the power supply during the airconditioning season because of smoothly startup.• If the main power supply is turned off during oper-ation, operation will restart automatically after thepower turns back on again.6-1 COOLING, HEATING , AUTOMATIC ANDFAN ONLY OPERATION• The operation mode cannot be changed with theremote controller whose display shows“ ” (changeover under control).Change the operation mode with the remote con-troller whose display does not show “ ” .• When the display “ ” (changeover undercontrol) flashes, refer to the chapter “Operationprocedure - Setting the master remote controller”.• The fan may keep on running for about 1 minuteafter the heating operation stops for removing theheat in the indoor unit.• The air flow rate may be adjusted automaticallydepending on the room temperature or the fanmay stop immediately. This is not a malfunction.• For machine protection the system may controlthe air flow rate automatically.• It may take sometime for finishing to change theair flow rate.This is normal operation.• Automatic operation (Heat Recovery series(RQCEQ) only)In this operation mode, cool/heat changeover isautomatically conducted.COOLING HEATINGoutdoor temperature –5°~43°CDB –20°~21°CDB–20°~15.5°CWBindoor temperature 21°~32°CDB 15°~27°CDB14°~25°CWBindoor humidity ≤ 80% -