Field Settings for FTX, FVXS Series SiUS091601EA209 Part 7 Trial Operation and Field SettingsCautionCautionReferenceReplace the PCB if you cut a jumper unintentionally.Jumpers are necessary for electronic circuit. Improper operation may occur if you cut any of them.Replace the remote controller if you cut a jumper unintentionally.Jumpers are necessary for electronic circuit. Improper operation may occur if you cut any of them.4.3 Jumper and Switch SettingsJumper for FTX18/24UVJU, FVXS seriesSwitch for FVXS seriesFor the location of the jumper and the switch, refer to the following pages.FTX18/24UVJU: page 26FVXS: page 28Jumperon indoorunit PCBFunction When connected(factory setting) When cutJBFan speed setting whencompressor stops forthermostat OFF.(effective only at coolingoperation)Fan speed setting;Remote controller settingThe fan stops.JCPower failure recoveryfunctionAuto-restart The unit does notresume operation afterrecovering from a powerfailure. Timer settingsare cleared.Switchon indoor unitPCBFunction OFF(factory setting) ONSW2-4Upward airflow limitsettingExposed or halfembedded installationSet the switch to ONposition when you installthe indoor unitembedded in the wall toavoid condensation.