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Issue
Unable to use SE8650 to control heat pump with a two Stages Furnace (auxiliary heat)
Product Line
EcoStruxure Building Operation, EcoStruxure Building Expert
Environment
- Building Operation Workstation
- Building Operation Automation Server
- SSL SE8000
Cause
Only one output is available in the SE8650 for Auxiliary heating
Resolution
- A simple solution would be to Wire both Furnace W1 and W2 to the SE8650 W1 terminal, and both will be on at the same time
Both furnace stages will be activated as a single stage from the same output
- Or a more advanced option would be to use a LUA Script to control the second stage of Auxiliary heating. See the below example using the SE8650 UO11 terminal
