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PASS/FAIL COMPONENT OPERATION
Selected Mode SS LE UE Temporary Mode (if component failure is detected)
Any P P P Run in selected mode
Any F P P Electric mode
Hybrid P F P Hybrid mode (but uses SS when LE is called for)
Electric P F P Electric mode (UE only)
Heat Pump (only) P F P Heat Pump (only) mode
High Demand P F P High Demand (but uses SS when LE is called for)
Hybrid P P F Control uses SS and LE based on demand algorithm
Electric P P F LE only mode
Heat Pump (only) P P F Heat Pump (only) mode
High Demand P P F High Demand (but uses LE when UE called for)
Any F F P Electric mode (UE only)
Any P F F Heat Pump (only) mode
Any F P F LE only mode
Any F F F Turn heat sources OFF, display 3 fault codes
SS = Sealed System
LE = Lower Element
UE = Upper Element