Question-and-Answer Resource for the Building Energy Modeling Community
| 2018-06-15 13:25:53 -0500 | asked a question | When is the appropriate EMS calling point for PLR control for a VRF cooling coil? When is the appropriate EMS calling point for PLR control for a VRF cooling coil? I am trying to alter the PLR of a VRF |
| 2018-06-01 18:31:13 -0500 | received badge | ● Supporter (source) |
| 2018-06-01 16:19:01 -0500 | asked a question | EMS system actuator lag EMS system actuator lag Hello, I am attempting to simulate a ducted VRF system using the EMS system, in order to valida |
| 2016-11-10 11:04:44 -0500 | received badge | ● Student (source) |
| 2016-11-07 13:37:17 -0500 | commented answer | How to enforce Duty Cycle for Fan:OnOff object Thank you, in the schedule I had designated it does appear to cycle between the 2 modes (0 and 1). I did not previously realize that the schedule in the compound object is where I can select the mode. I appreciate the help! |
| 2016-11-04 16:15:20 -0500 | asked a question | How to enforce Duty Cycle for Fan:OnOff object Hi, I am using a fan:onoff object within a Zone:HVAC:TerminalUnit:VariableRefrigerantFlow object, and for some reason even though my runtime fractions for the heating and cooling coils within the object are often between 0 and 1 (i.e. 0.5), the runtime fraction for the Fan:OnOff only bounces from 0 to 1, 1 if there is any load, and 0 if there is no load. The engineering and I/O reference seem to suggest that the fan power and runtime fraction should calculate as if the fan cycles with the coils, but in my model this is clearly not the case. I would appreciate any help. Is there a specific input to force the fan to behave the way I want? |
