Re: [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.
   **   ~~~   ** Demand Branches:
   **   ~~~   **   COOLING DEMAND INLET
   **   ~~~   **     Components on Branch:
   **   ~~~   **       PIPE:ADIABATIC:DEMAND SIDE INLET PIPE
   **   ~~~   **   ZT 2 PAN RAD CH
   **   ~~~   **     Components on Branch:
   **   ~~~   **       ZONEHVAC:LOWTEMPERATURERADIANT:VARIABLEFLOW:PR ZT2
   **   ~~~   **   ZT 3 PAN RAD CH
   **   ~~~   **     Components on Branch:
   **   ~~~   **       ZONEHVAC:LOWTEMPERATURERADIANT:VARIABLEFLOW:PR ZT3
   **   ~~~   **   ZT 4 PAN RAD CH
   **   ~~~   **     Components on Branch:
   **   ~~~   **       ZONEHVAC:LOWTEMPERATURERADIANT:VARIABLEFLOW:PR ZT4
   **   ~~~   **   ZT 5 PAN RAD CH
   **   ~~~   **     Components on Branch:
   **   ~~~   **       ZONEHVAC:LOWTEMPERATURERADIANT:VARIABLEFLOW:PR ZT5
   **   ~~~   **   ZT 6 PAN RAD CH
   **   ~~~   **     Components on Branch:
   **   ~~~   **       ZONEHVAC:LOWTEMPERATURERADIANT:VARIABLEFLOW:PR ZT6
   **   ~~~   **   ZT 7 PAN RAD CH
   **   ~~~   **     Components on Branch:
   **   ~~~   **       ZONEHVAC:LOWTEMPERATURERADIANT:VARIABLEFLOW:PR ZT7
   **   ~~~   **   DEMAND BYPASS BRANCH
   **   ~~~   **     Components on Branch:
   **   ~~~   **       PIPE:ADIABATIC:DEMAND SIDE BYPASS
   **   ~~~   **   COOLING DEMAND OUTLET
   **   ~~~   **     Components on Branch:
   **   ~~~   **       PIPE:ADIABATIC:CW DEMAND SIDE OUTLET PIPE
   **   ~~~   ** Supply Branches:
   **   ~~~   **   CW PUMP BRANCH
   **   ~~~   **     Components on Branch:
   **   ~~~   **       PUMP:VARIABLESPEED:CIRC PUMP
   **   ~~~   **   GSHPCLG CHILLER BRANCH
   **   ~~~   **     Components on Branch:
   **   ~~~   **       HEATPUMP:WATERTOWATER:EQUATIONFIT:COOLING:GSHPCLG
   **   ~~~   **   PURCHASED COOLING BRANCH
   **   ~~~   **     Components on Branch:
   **   ~~~   **       DISTRICTCOOLING:PURCHASED COOLING
   **   ~~~   **   SUPPLY BYPASS BRANCH
   **   ~~~   **     Components on Branch:
   **   ~~~   **       PIPE:ADIABATIC:SUPPLY SIDE BYPASS
   **   ~~~   **   COOLING SUPPLY OUTLET
   **   ~~~   **     Components on Branch:
   **   ~~~   **       PIPE:ADIABATIC:SUPPLY SIDE OUTLET PIPE

somebody can help me?

Thank you very much, ena