Interconnecting Wiring for Symbio Condenser (Cooling or Heat Pump) to Trane Controller with Wet or Powered Outputs – Trane
![hvac - why does my heat pump wiring diagram show 7 wires going to the thermostat but the thermostat only says it needs 5? - Home Improvement Stack Exchange hvac - why does my heat pump wiring diagram show 7 wires going to the thermostat but the thermostat only says it needs 5? - Home Improvement Stack Exchange](https://i.stack.imgur.com/vE9Po.png)
hvac - why does my heat pump wiring diagram show 7 wires going to the thermostat but the thermostat only says it needs 5? - Home Improvement Stack Exchange
![Troubleshooting Challenge: A Split System Heat Pump That's Not Cooling | 2013-11-04 | ACHRNEWS | ACHR News Troubleshooting Challenge: A Split System Heat Pump That's Not Cooling | 2013-11-04 | ACHRNEWS | ACHR News](https://www.achrnews.com/ext/resources/2013/11-2013/11-04-2013/F-Troubleshooting-Nov2013-Fig1.jpg?1383419057)