I use a WaterHeater:HeatPump for heating and I have the following error:
* Severe * For object =
Coil:WaterHeating:AirToWaterHeatPump:Pumped, name = "HP COIL" Calculated outlet air relative humidity greater than 1. The combination of rated air volume flow rate, total cooling capacity and sensible heat ratio yields coil exiting air conditions above the saturation curve. Possible fixes are to reduce the rated total cooling capacity, increase the rated air volume flow rate, or reduce the rated sensible heat ratio for this coil. If autosizing, it is recommended that all three of these values be autosized.
I have already used this object without problem in another case so I think it's a sizing problem but I don't understand the proposed fixe... Some names slightly differ from what I have in this object (confusion between "total cooling capacity" and "rated heating capacity" ?) and mostly it does not seem possible to autosize these parameters (except for the "Rated Evaporator Air Flow Rate").
Did I missed something ?
