How to use a WaterHeater:HeatPump in OS ?
I have spent a lot of time trying to use the WaterHeater:HeatPump in OS but I always have a problem with heat loads. First I used a standard boiler (which works perfectly) and then I followed @Kyle Benne instructions to use this component instead.
However, this post (see @Archmage's answer) shows there are significant differences between the two systems. My problem is similar but I can't figure exactly what I have to add and where. I tried to add at least a HeatExchanger:FluidToFluid but It caused node problems... I think I need some help to understand this component before doing more tests.
What's the manifestation of your problem? And have you autosized your waterheater:mixed? OS is missing the WaterHeater:Sizing objects, so don't
Same problem that the post I linked in my question : no heat provided to my loop. I have two parameters autosized in waterheater:mixed : use and source side design flow rate. It could be the problem... I have to test this.
Edit : same problem if I hard sized these two parameters !
Make sure the heat pump is connected to the loop and the control is setup correctly. Refer to the input out reference of energyplus is any fields are not clear.
@Bo_Lin The waterheater:heatpump is a zonal object, it is defined in my thermal zone and connected to the hot water loop through the waterheater:mixed (water tank). For the control, I use the same configuration I used for a standard boiler, which works perfectly. This posts seems to show that I have to add some objects such as a HeatExchanger:FluidToFluid so I need some clarifications.