10English9-2 REMOTE CONTROLLER ANDCENTRALIZED CONTROLterminal block (X3M)>1. Method of wiring and specifications• Remote control can be carried out by connecting inputfrom outside to terminals T1 and T2 of the terminal block.Class of wire Vinyl cord with sheath or 2-wire cableWire gauge 0.75-1.25 mm 2Wire length MAX 100 mOutside contactspecificationsContact that guarantees minimum applicableload DC15V · 1 mAInput AF2 T1 T2FORCEDOFF2. Operation procedures• Operation is as given in the table below for input A offorced OFF, and ON/OFF control.For forced OFF For ON/OFF controlForced OFF (control panelrejection) by input A “ON”Operate by switching input Afrom “OFF” to “ON”Control panel acceptance byinput A “OFF”Stop by switching input A from“ON” to “OFF”3. For selecting Forced OFF and ON/OFF control• Select input by control panel after turning on the powersupply.• Set to the field set mode by control panel.(For field setting, refer to the procedure shown onprevious page.)• After entering the field set mode, select mode No.12, setthe first code No.1, and set the second code No. to “01”for forced OFF, or to “02” for ON/OFF control.(Factory setting is set to forced OFF)display, and malfunction display from the wiring adaptorfor electrical appendices (A2P).>Refer to “For remote control” in the “VRV Engineering Data”.• When using with the centralized control, remove thejumper of the group remote control printed circuit boardmounted in the control box.• If controlled by the centralized control equipment (thecentral control panel (optional accessory)), the group NO.must be set by the control panel.For details, refer to the instruction of each centralizedcontrol equipment.10. TRIAL OPERATION(1) Confirm that the control box lid of the indoor units and theoutdoor unit are closed.(2) Perform the test run according to the installation manualattached to the outdoor unit.• If the operation lamp on the control panel is flashing, itindicates malfunction.Check the error code of the liquid crystal display andthe malfunction source.For the error code and the details, refer to theoperation manual attached to the indoor unit.In particular, if an error in the table 1 is displayed, itmay be the error of wiring work or the power supplymay not be turned ON.(3) Carry out test run according to installation manualattached to the outdoor unit.Table 2Control panel(remotecontroller)displayContent Solution“Undercentralizedcontrol”flashing• Terminal for forced OFF(T1·T2) may be shortcircuiting.• Fix not to shortcircuit.“U4”flashing“UH”flashing• The power supply of theoutdoor unit may not turnedON.• The power supply of theoutdoor unit may not beinstalled yet.• Misconnection between thetransmission wiring, and thecontrol panel wiring or theforced OFF wiring.• Disconnection of thetransmission wiring.• Turn on the powerof outdoor unit.• Proceed installationwork for powersupply.• Fix the wiring.NOTdisplay• The power supply of theindoor unit is not turned ON.• The power supply of theindoor unit may not beinstalled yet.• Misconnection between thetransmission wiring, and thecontrol panel wiring or theforced OFF wiring.• Disconnection of the controlpanel wiring.• Turn on the powerof indoor unit.• Proceed installationwork for powersupply.• Fix the wiring.E4• A test run is carried out fromoutdoor unit in a wrong mode(other than “standard” mode).• Select the“standard” mode,then test run againfrom outdoor unit.WARNINGEven though the test run is finished, if the interior finish workis not completed, instruct the user not to operate until thework is completed for protecting the indoor unit.Paint or adhesive used for interior finish work may stain theindoor unit, which may result in water splash or leak.
