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[EnergyPlus_Support] WATER HEAT PUMP - system is getting far too cold





Hello everybody,

 

i tried to connect my low temperature radiant panels with a water to water heat pump. But it's giving me the following error which i can't resolve, it seems that the system is getting too cold:

 

   **   ~~~   **  Environment=ANNO, at Simulation time=05/01 10:20 - 10:25
   **   ~~~   ** PlantLoop Name (SupplySide)= CHILLED WATER LOOP
   **   ~~~   ** PlantLoop Setpoint Temperature=17.0 {C}
   **   ~~~   ** PlantLoop Inlet Node (SupplySide) has a Setpoint.
   **   ~~~   ** PlantLoop Inlet Node (DemandSide) has a Setpoint.
   **   ~~~   ** PlantLoop Outlet Node (SupplySide) has a Setpoint.
   **   ~~~   ** PlantLoop Outlet Node (DemandSide) has a Setpoint.
   **   ~~~   ** PlantLoop Outlet Node (SupplySide) "CW SUPPLY OUTLET NODE" has temperature=-100.8 {C}
   **   ~~~   ** PlantLoop  Inlet Node (SupplySide) "CW SUPPLY INLET NODE" has temperature=18.6 {C}
   **   ~~~   ** PlantLoop Minimum Temperature=1.0 {C}
   **   ~~~   ** PlantLoop Maximum Temperature=98.0 {C}
   **   ~~~   ** PlantLoop Flow Request (SupplySide)=0.0 {kg/s}
   **   ~~~   ** PlantLoop Flow Request (DemandSide)=5.4E-002 {kg/s}
   **   ~~~   ** PlantLoop Node (SupplySide) "CW SUPPLY OUTLET NODE" has mass flow rate =5.4E-002 {kg/s}
   **   ~~~   ** PlantLoop PumpHeat (SupplySide)=12.5 {W}
   **   ~~~   ** PlantLoop PumpHeat (DemandSide)=0.0 {W}
   **   ~~~   ** PlantLoop Cooling Demand=363.2 {W}
   **   ~~~   ** PlantLoop Heating Demand=0.0 {W}
   **   ~~~   ** PlantLoop Demand not Dispatched=0.0 {W}
   **   ~~~   ** PlantLoop Unmet Demand=27036.5 {W}
   **   ~~~   ** PlantLoop Capacity=719890.0 {W}
   **   ~~~   ** PlantLoop Capacity (SupplySide)=719890.0 {W}
   **   ~~~   ** PlantLoop Capacity (DemandSide)=0.0 {W}
   **   ~~~   ** PlantLoop Operation Scheme=CW LOOP OPERATION
   **   ~~~   ** PlantLoop Operation Dispatched Load = 363.2 {W}
   **   ~~~   ** PlantLoop Operation Dispatched Load (SupplySide)= 363.2 {W}
   **   ~~~   ** PlantLoop Operation Dispatched Load (DemandSide)= 0.0 {W}
   **   ~~~   ** Branches on the Loop.
 &nbs

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