WebOct 4, 2015 · If your old thermostat is the TCONT402 or similar the BK is a special feature to control the variable speed blower in your air handler.The NEST will not offer this feature. Although the Nest will work with some variable speed Trane units by depending on dip switches on control board of air handler, it is not compatible with others that depend ... WebMar 30, 2007 · I did replace the indoor thermostats over a year ago and everything has always worked fine (Honeywell RTH7400D). I tried switching the upstairs and downstairs thermostat and still the upstairs unit didn't work. With the programmable thermostat, the upstairs unit is only on for a few hours a day.
TEM6 / 824 Thermostat Install and Configuration for American …
WebApr 9, 2016 · The bk terminal has been a pwm terminal since early 2000. There's no reason the thermostat shouldn't work on something from 2011. Why would they make it a pwm … WebOct 14, 2024 · Wire to the BK terminal as you said. It will slow the fan when the BK is no longer energized with 24 volts. Trane built in the ability to use either PWM or standard 24 vac. When posting in certain forums, knowing your location will help others give better feedback/advice/solutions to your questions. supers05 Registered Joined May 23, 2015 simply south film nagar
Help with BK terminal - HVAC-Talk: Heating, Air & Refrigeration …
WebHow To: Change Your Thermostat Mazda 3 Staggered Horizons 6.59K subscribers Subscribe 88K views 6 years ago Today we take an in depth look on how to change a thermostat, as I received... WebApr 14, 2024 · Have a trane thermostat that is being replaced with an ecobee3. trane has a black wire going to terminal BK. no terminal bk on ecobee3. where should this wire be connected. remainder of wires line up between thermostats. Contractor's Assistant: Just to clarify, do you think this is a larger HVAC problem, or something specific to the … WebJul 4, 2024 · Bk wire is for dehumidification. On trane's thermostat it will lower the fan speed by 30% when the temperature is getting closer to the set point but the humidity level has not reached the humidity set point. Nest won't support this feature, so cap it and push the wire in the wall. simply south gachibowli