[EnergyPlus_Support] air to water heat pump

[<camilla.quercia@xxxxxxxxx>]

Dear users

I once again need your experience

I have to create an electric heat pump AIR TO WATER for heating and cooling.

I've tried using "Water heater heat pump" and its idf. sample file but I'm not able to use the same pump for cooling and heating.

in effect when i tried to simulate this error accurred

** Warning ** Node used as an inlet more than once: RESID_HPWHWATERINLETNODE

   **   ~~~   **   Used by     : BRANCH, name=HPWH RESID RISC HW BRANCH

   **   ~~~   **   as inlet for: WATERHEATER:HEATPUMP, name=RESIDHEATPUMPWATERHEATER

   **   ~~~   **   and  by     : BRANCH, name=HPWH RESID RAFFR HW BRANCH

   **   ~~~   **   as inlet for: WATERHEATER:HEATPUMP, name=RESIDHEATPUMPWATERHEATER

how should I do?

it's possibile in E+ have only one heat pump (air to water) both for heating and cooling?

or i have to create two theoretical heat pumps?

i have to use that with fancoil in one situation and with radiant panel in an other one.

Thanks in advance

Camilla Quercia

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