How to configure SE8600 for heat pump application

Issue

Installation and configuration for SE8600 heat pump application

Product Line

SmartStruxure Lite

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

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