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2016-09-29 15:37:07 -0500 | commented answer | Furnace fan never turns off Thank you very much Andrew. This will be what I need. |
2016-09-29 13:43:39 -0500 | commented answer | Furnace fan never turns off Thanks Richard. That's what I was thinking, but there is no such component in OpenStudio that I can find. There was just the one furnace template. Anyone else know about this? |
2016-09-29 12:16:18 -0500 | commented question | Furnace fan never turns off I had it on a schedule that matched the HtgSetp for my building type - MidriseApartment. I switched the schedule to always on discreet. When I reran the model, this did not appear to change anything. Thanks, Matt |
2016-09-29 12:16:18 -0500 | received badge | ● Commentator |
2016-09-29 10:02:02 -0500 | asked a question | Furnace fan never turns off OK, I have the furnace template (with A/C) running a one zone/one space model. The electrical use chart shows the same amount of fan energy consumption each month, meaning it is on all the time, correct? The fan should receive information about the operation of the gas burner and turn off when the heating demand is satisfied. I am also getting large (most days of the year) unmet hours which may be affecting this situation. Any ideas on how to correct this issue? Thanks. |
2016-09-28 12:01:00 -0500 | commented answer | furnace help for pay Thanks again, Eric. I reloaded the MidriseApartment.osm as suggested and all of the options for this bldg type did appear as described. I wonder whyt this didn't happen when I first did the Library Load. Anyway, it looks as though I am getting to where I need to be. |
2016-09-28 11:50:46 -0500 | received badge | ● Supporter (source) |
2016-09-28 11:08:41 -0500 | commented answer | furnace help for pay Thanks Eric, I added the Medium Office HtgSetp as suggested. Richard and I changed the set points for the SetpointManager:SingleZone:OneStageHeating to 70 and 74. The model will run. It does produce gas consumption now. Looking at the EP error code - it says my only zone still has no thermostat. I also checked the link you provided. Regarding Mathew's comments in that thread. When I loaded the MidRiseApartment Library, no HtgSetp or ClgSetp options were included. I also don't understand the need to download components from BCL in order to assign the schedules, since presumably one did that. |
2016-09-28 09:49:39 -0500 | commented answer | furnace help for pay Thank you for your time, Richard. I selected the SetpointManager:SingleZone:OneStageHeating in place of the terminal reheat SPM that was part of the furnace template (which has never run). When I go to the thermal zone tab, I see the placeholder for a heating thermostat schedule. There is none in my library for my building type (midrise apartment), so I use Medium Office HtgSetp. Is this the thermostat? If not, where are the thermostats? |
2016-09-28 06:36:28 -0500 | asked a question | furnace help for pay Gentlemen & Ladies, I am asking for one hour of someone’s time, for which I will gladly pay, to assist me in getting a furnace to work for a one zone/one space building model. I have spent a couple of days trying to get a successful run to no avail. After fiddling with some controls that I thought would provide a thermostat and air flow, I did get a successful run - for electricity only. The furnace fan runs but no gas is consumed while it runs. The errors saying that there is no thermostat and no air flow are still in the output log. I am not a newbie at this. Three years ago I used energy plus to evaluate a LEED certified building in Chicago. At that time the HVAC component of the software was not quite ready for prime time, but one fellow working with NREL at that time was very helpful in getting a much more complex HVAC system to work. So, I’m just asking for help with getting a furnace template to work. It really should not be this complicated. I am working on a real project that has a completion date this Friday. So I am really in need. My contact information is below. Thank you for what you can do. Bob Tinker bob@kelly-tinker.com 734-429-2925 |
2016-09-26 15:30:53 -0500 | commented answer | I can't get a furnace to run David, I selected the constant temperature schedule for my simple model, but it still will not complete the run. I still get errors that there is no thermostat and there is no air flow. |
2016-09-26 15:14:34 -0500 | commented answer | I can't get a furnace to run Yes, I see the thermal zone tab and the placeholder for heating thermostat schedule. However, there are no thermostat schedules in my library and I could not find any in the BCL and none downloaded for my building type, midrise apartment. ???? |
2016-09-26 12:45:21 -0500 | asked a question | Furnace thermostat and air flow missing I am just working with a one space/one zone model and I have been trying to get the furnace template to work. I keep getting two severe errors: the zone has no thermostat and the zone has no air flow. Why would the template exclude these items? I have searched now for hours in the documentation and the on unmet hours to find how to correct these errors. Can anyone help? Thanks. Bob Tinker |
2016-09-26 12:02:46 -0500 | received badge | ● Student (source) |
2016-09-26 11:54:06 -0500 | commented question | I can't get a furnace to run I added a diffuser to the furnace system diagram. That got the model into energy plus but now there are issues with a thermostat. I don't see how to add one. This there a screen shot of a successful furnace air loop that I can see? |
2016-09-26 11:54:06 -0500 | commented question | I can't get a furnace to run David, I just located a discussion that you had with kbenne that appeared to be relevant to my issue. Can you discuss?. Here is the link: https://github.com/NREL/OpenStudio/is... |
2016-09-26 11:54:06 -0500 | commented question | I can't get a furnace to run I am just using the standard furnace template.I cannot find the line to which the error code refers. Is there any information on the use of the mechanical ventilation module? When I tried removing it, I ran into additional errors in the run. |
2016-09-26 11:54:06 -0500 | commented question | I can't get a furnace to run David, I checked the simulation error text. I had the design days added so that did not show up. The main problem appears to be the ventilation air controller. The error code is says: * Severe * IP: IDF line~4188 Object=CONTROLLER:MECHANICALVENTILATION, name=CONTROLLER MECHANICAL VENTILATION 1, Required Field=[Zone 1 Name] was blank. * Warning * IP: Note -- Some missing fields have been filled with defaults. See the audit output file for details. * ~~~ * Possible Invalid Numerics or other problems * Fatal * IP: Errors occurred on processing IDF file. Preceding conditi |
2016-09-26 09:20:19 -0500 | asked a question | I can't get a furnace to run I am testing a one space model with a furnace to be sure I understand how it works before I test run a much more complicated model with many furnaces. I have followed all of the steps in any videos I could find for the simple one space model but the run fails. Can I send someone the OSM file to view the error codes? I cannot decipher them and have no idea what to change. Thanks. This project is for PACE funding for a multifamily building. It is due this Friday. We have the complicated model already built. I just need to know what I am missing when running an OSM file with a furnace. Thank you so much. Bob Tinker |