(AAON Prism) overview on RTU

[@KarenBeisler-g5k]

Does anybody know how to set the heating and cooling setpoints on these units? Our main room is freezing and I cannot figure out why.

[@hvacslayer2929]

You’d have to give bit more info. But you should be able to adjust the set points through the hand held tool if you do not have prizm software

[@KarenBeisler-g5k]

@@hvacslayer2929 we have an AAON Unit RN-011-08-0-EA09-3FB 11T Roof top unit. The reset source is space temperature and the cooling mode enable setpoint is 74, the heating setpoint is 71. sat coolingSAT COOLING high reset source is 80, low reset source is 70, cooling staging window is 5, mod cooling window is 10,SAT SETPOINT OR LOW SAT LIMIT FOR RESET IS 50, SAT High Reset limit is 60, mechanical cooling oat lockout is 35, low cut off temp is 40 SAT HEATING - high reset source is 80, low reset source is 60, heat staging window is 5, mod heating window is 10, Low SAT Limit reset is 90 heating OAT lockout is 90, high temp cutoff is 150. The room that uses this unit has a 25foot ceiling and 80 feet long. Yesterday the temperature of that room was 68 degrees. i tried to use the control unit to increase the temp, but no luck - room would not increase temp. It was showing that the heat was on. It was 80degrees outside but I didnt think the outside temperature made a difference since the reset source is space temp. I am happy to send you pictures of all the settings. this is driving me nuts!

[@michaelnerio1826]

Where did you get the peice you picked up that's running from the laptop top to the AAON? I have downloaded the Prism 2 software and now I just need that connection to get started.

[@hvacslayer2929]

Whoever you order aaon parts from should be able to order it for you. Part number is ASM02244

[@michaelnerio1826]

@@hvacslayer2929 Hey, I really appreciate the assistance. Thank you!

[@hvacslayer2929]

@@michaelnerio1826 No problem man glad to help.

[@GiganticAntics]

If my smoke detector trips and the issue is rectified. How do I reset the vccx2 so that it isn't tripped on emergency shutdown alarm? Do I need the software?

[@hvacslayer2929]

Once the voltage is applied back to the emergency shutdown output you shouldn’t have to reset anything. If you cleared the smoke and it’s still there than you have another safety that’s tripped or your smoke isn’t resetting. Emergency shut down is external from the controller you would need to see what is tied into that on the wiring schematic. Make sure all those components are reset manually or sending out the voltage. Hope this helps

[@williamgreenwood2009]

How do I purchase the program?

[@hvacslayer2929]

I’ve seen them on eBay actually. Or online supply house. I obtained mine through aaon rep in my area.

[@iglesiapentecostaljesucris3619]

How did you solve the bb error code

[@hvacslayer2929]

Bb error on the vfds are control voltage safety that is tired into safety’s through out the unit (high static, low static, emergency stop) unit kept hitting high static due to TI down in the floor, basically they had most of the vavs closed with minimum return being plugged with media filter. I had to lower the overal Duct static and bring in more outside air to offset .

[@Oopsie223]

I would have loved to watch this video but I can’t hear you you

[@hvacslayer2929]

Yeah sorry about, I’ll have to do another video going over the software a bit