1432 I had an Trane XL824 installed last week. One item (not in the manual) that I do not understand. At 'Settings' > 'Thermostat' > 'Indoor Calibrations' there are two settings I can adjust; 'Indoor temp' and 'Humidity'. What are these settings, and how do they work? Thanks for your help. Manual. Amazon Certified. Auto Replenishment. American Standard GOLD 824 Nexia Control. 2.7 out of 5 stars 6. $360.00 $ 360. 00. Trane Multi-Stage Thermostat 7-Day Programmable Touchscreen Thermostat, TCONT802AS32DAA / TH8320U1040 / THT02478. Aux Heat adjustments w/ Trane 824 thermostat . submitted 2 years ago * by BeerDoctor. I have a 2 stage geothermal heat pump (climatemaster) with a 2 stage gas furnace as backup (connected to W1/W2) and an American Standard (rebranded Trane) 824 thermostat Per the manual it looks like it can I bought a Trane XL 824 thermostat to replace my Trane Comfort Link II thermostat # TCONT900AC 43UAA. There are currently 3 wires connected to the thermostat. D- White R- Red B- Black. Contractor's Assistant: Just to clarify, do you think this is a larger HVAC problem, or something specific to the thermostat? My Trane Them XL 824 has a blank screen and the AC is down. checked all breakers - Answered by a verified HVAC Technician I bought a Trane XL 824 thermostat to replace my Trane Comfort Link II thermostat # TCONT900AC 43UAA. Manual J & D calculations. Brian HVAC Guy. HVAC Technician I removed my Nexia 824 to plug the hole in the wall as described in tommyd's post titled XL824 Runs AC Continuously Starting at 9-9:30 PM. After reinstalling the thermostat, the system works fine, but the fan icon no longer spins when the fan is running, and the cooling waves no longer wave when AC is running. Trane offers a full line of connected controls that enable you to manage your heating and cooling system—as well as your energy consumption—from any Internet-enabled smart-phone, tablet or computer. In addition to the XL824 control, Trane offe