York LX series Owner's Manual

Also see for LX series: Technical guide Technical guide Technical guide Technical guide Installation manual

Contents

Page 33Technician SetupHLoProgram ONOFFOutdoorFan OnCOOL SETA HEAT ETUX SDay NightMorningEveningSetup Step2nd3rdStageAmPm18:88188 18888188To enter Technician Setup, press and hold the SETUP button for 5 seconds.After all the icons appear, press MODE. The version number of the thermostatwill appear in the scrolling text. Press MODE to advance to the next step. Usethe WARMER or COOLER buttons to adjust the value of your selection. To leaveTechnician Setup, press SETUP.MODESETUPHold for 5 seconds All icons appear Press MODE to advancethrough the setup stepsPress WARMER or COOLERto adjust the selectionTechnician Setup is for diagnostic and testing purposes and is intended for useby a qualified technician. See page 14 for more detailed instructions.View the version number of the thermostat.View the jumper setting of J1 (Gas/Electric or Heat Pump), J2 (Reversing Valve:RV=O or RV=B), and J3 (Fan: Gas or Electric) jumpers located on the back of thethermostat. (Remove thermostat from backplate for access)View the state of the Dry Contact and Fault terminals.Turn on equipment outputs for testing.Calibrate thermostat, remote, and humidity sensors.Control HUM output (On or Off)Control DEHUM output (On or Off)Control AUX output (On or Off)Technician Setup contains the following options: