Issue
Installation and configuration for SE8600 heat pump application
Product Line
EcoStruxure Building Expert
Environment
SE8600
Cause
Installation and configuration errors for heat pump application
Resolution
SE8600 terminal identification
In typical HP application, you shall connect to following terminals below:
Y2 = Compressor 2 | Y1 = Compressor 1 | G = Fan | RC = 24 Vac positive | C = Common << 24Vac common >>
W1 = Auxiliary Heating stage | W2 = O/B = First stage heating | UI22 = Supply temperature sensor | UI23 = Outdoor temperature sensor
Depend on specification document, the application may require addition controls and connections.
Application shall be set to: HP for heat pump
- From winter to summer season, high BP is the outdoor temperature value ABOVE which the system transfer from auxiliary heat <> and maintain heating setpoint with the heat pump << default 32°C >>. Temperature shall be set per system geographical localization.
- From summer to winter season, low BP is the outdoor temperature value BELOW which the system transfer from heat pump <> and maintain heating setpoint with the auxiliary heat << default -24.5°C >>. Temperature shall be set per system geographical localization.
* Outdoor temperature sensor shall be installed
Heat pump reversing valve operation
- O: energize valve in cooling operation << default position >>
- B: energize valve in heating operation
Heat pump system
