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Plant-loop, air loop Hvac, for a central heating system with hot water

Hello,

I would like to design a central heating system for an apartment with more than 10 thermal zones. The steps that i follow with order are:

1) I am creating the plant loop by importing a hot water boiler (HW boiler), an adiabatic pipe, a setpoint manager (scheduled HW Temp) and finally all the Heating water coils (Coil Heating Water- one coil for a each thermal zone)

2) I am making an air loop HVAC for each coil by importing an empty air loop system. Into that loop i am placing the thermal zone in the demand equipment area. The coils are in the supply equipment.

3) I export the file into an *.idf file and then i use a heating thermal schedule for each thermal zone.

When i run the energyplus at the end, some of the severe errors are

"* Severe * Node NODE 5 connects to no component * ~~~ * Occurs in Supply Air Path=AIR LOOP HVAC 1 NODE 3 SUPPLY PATH * ~~~ * Check the connection to a ZoneHVAC:EquipmentConnections object * ~~~ * Check if this component is missing from the Supply Air Path * Severe * An outlet node in AirLoopHVAC="AIR LOOP HVAC 1" is not connected to any zone * ~~~ * Could not match ZoneEquipGroup Inlet Node="NODE 3" to any Supply Air Path or controlled zone * Severe * Node NODE 95 connects to no component * ~~~ * Occurs in Supply Air Path=AIR LOOP HVAC 10 NODE 93 SUPPLY PATH * ~~~ * Check the connection to a ZoneHVAC:EquipmentConnections object * ~~~ * Check if this component is missing from the Supply Air Path"

Could anybody give me some advice?

Thank you in advance.

----Matt Koch, thank you very much for your instant reply in my previous question! It was very helpful!

Plant-loop, air loop Hvac, for a central heating system with hot water

Hello,

I would like to design a central heating system for an apartment with more than 10 thermal zones. The steps that i follow with order are:

1) I am creating the plant loop by importing a hot water boiler (HW boiler), an adiabatic pipe, a setpoint manager (scheduled HW Temp) and finally all the Heating water coils (Coil Heating Water- one coil for a each thermal zone)

2) I am making an air loop HVAC for each coil by importing an empty air loop system. Into that loop i am placing the thermal zone in the demand equipment area. The coils are in the supply equipment.

3) I export the file into an *.idf file and then i use a heating thermal schedule for each thermal zone.

When i run the energyplus at the end, some of the severe errors are

"* Severe * Node NODE 5 connects to no component * ~~~ * Occurs in Supply Air Path=AIR LOOP HVAC 1 NODE 3 SUPPLY PATH * ~~~ * Check the connection to a ZoneHVAC:EquipmentConnections object * ~~~ * Check if this component is missing from the Supply Air Path * Severe * An outlet node in AirLoopHVAC="AIR LOOP HVAC 1" is not connected to any zone * ~~~ * Could not match ZoneEquipGroup Inlet Node="NODE 3" to any Supply Air Path or controlled zone * Severe * Node NODE 95 connects to no component * ~~~ * Occurs in Supply Air Path=AIR LOOP HVAC 10 NODE 93 SUPPLY PATH * ~~~ * Check the connection to a ZoneHVAC:EquipmentConnections object * ~~~ * Check if this component is missing from the Supply Air Path"

Could anybody give me some advice?

Thank you in advance.

----Matt Koch, thank you very much for your instant reply in my previous question! It was very helpful!