[TRNSYS-users] differential controller

Sat Jul 10 16:13:37 PDT 2021

Well, in this case, I think it is better for you to go through the HVAC
example in the photo below you will find it the examples folder.

I hope that could help

في السبت، ١٠ يوليو ٢٠٢١ ١٤:٣٤ SHERIF SAIED via TRNSYS-users <
trnsys-users at lists.onebuilding.org> كتب:

> No, I have not tried yet, but from reading this type I need 3 stages for
> heating source and two for cooling. In my case I only have one output
> source for heating from boiler to tank and have one also output lower
> temperature from tank returned to the boiler (closed-loop) and I need to
> control on/off the boiler for working only in ranges 80-90 oC in summer and
> 35-45 in winter, So it doesn't make sense for me to use this type or how
> can I use it for this requirement?
> Regards,
> Sherif
>
> On Sat, Jul 10, 2021 at 5:54 AM Mukhtar Abeid via TRNSYS-users <
> trnsys-users at lists.onebuilding.org> wrote:
>
>> Have you tried type 108
>>
>> في الجمعة، ٩ يوليو ٢٠٢١ ١٩:٤٤ SHERIF SAIED via TRNSYS-users <
>> trnsys-users at lists.onebuilding.org> كتب:
>>
>>> Hello Mukhtar,
>>> I have a thermal storage tank after boiler as a heating tank and another
>>> one after absorption chiller as a cooling tank so I think to control the
>>> boiler on/off and works in ranges I mentioned in summer and winter I need
>>> to use this differential one .as for the room I will consider what David
>>> said about the simple thermostat and will use it , but still the problem
>>> for me about the boiler. thanks for advance for helping me.
>>>
>>> Regards,
>>> Sherif
>>>
>>>
>>>
>>> On Fri, Jul 9, 2021 at 6:54 PM Mukhtar Abeid via TRNSYS-users <
>>> trnsys-users at lists.onebuilding.org> wrote:
>>>
>>>> Dear Sherif
>>>>
>>>> What I know about the differential controller is that it's used in case
>>>> of thermal storage exist. However, in your case there is no storage. So, l
>>>> don't think that it is a good idea to use the differential. There are some
>>>> other good choices.
>>>>
>>>> Good luck
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> في الجمعة، ٩ يوليو ٢٠٢١ ٠٢:٤٤ SHERIF SAIED via TRNSYS-users <
>>>> trnsys-users at lists.onebuilding.org> كتب:
>>>>
>>>>> checked Thanks, I have another question I used a differential
>>>>> controller to the boiler type 700 and need temperature out of it in the
>>>>> range between 80-90 in summer(cooling season) to supply absorption chiller
>>>>> and need temperature in winter(heating season) in the range of 30-45. I
>>>>> linked the upper input Temp.(Th) to outlet of the boiler, linked the lower
>>>>> input Temp.(TL) to the return flow from the tank to the boiler. for
>>>>> monitoring Temp. (Tin),upper dead band(dt) and lower dead band(dt) I don't
>>>>> really know how to link or what value should be. could anyone help,
>>>>> please?, Thanks in advance.
>>>>>
>>>>> On Tue, Jul 6, 2021 at 8:32 PM David BRADLEY <d.bradley at tess-inc.com>
>>>>> wrote:
>>>>>
>>>>>> Sherif,
>>>>>>
>>>>>>   There are a number of examples in the
>>>>>> .\Trnsys18\Examples\HVACTemplates\ folder that will give you some ideas
>>>>>> about how to implement control of HVAC systems. Have a look at the
>>>>>> 10-Examples.pdf documentation in parallel with those examples. I don't
>>>>>> think that any of them have a radiant floor in them but the principals are
>>>>>> the same.
>>>>>>
>>>>>> You might also have a look at the example:
>>>>>>
>>>>>> .\Trnsys18\Examples\Feedback Control\SunSpace - Floor heating PID
>>>>>> controller.tpf
>>>>>>
>>>>>> Its controls are possibly more complicated than the ones in your case
>>>>>> but it will show how to do the system-level connections between Type56's
>>>>>> active layers and the HVAC system.
>>>>>>
>>>>>> kind regards,
>>>>>>
>>>>>>  David
>>>>>>
>>>>>>
>>>>>>
>>>>>> On 07/06/2021 10:20, SHERIF SAIED via TRNSYS-users wrote:
>>>>>>
>>>>>> Hello everyone,
>>>>>>
>>>>>> I need help in some controls on radiant cooling and heating system
>>>>>> model like type 165 to control either boiler for heating system or control
>>>>>> building temperatures, also need to control on different components for the
>>>>>> cooling system to work uniformly according to season if summer cooling
>>>>>> system work and if winter will work the heating system and so on . I have
>>>>>> problems in PPD and PMV for building through all year. if anyone would help
>>>>>> or have an example model for how I can set these controllers in two systems?
>>>>>> Regards,
>>>>>> --
>>>>>> *Sherif Saied.*
>>>>>> *Tel: (*+2)01004419468 / (+2)01124348957
>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> TRNSYS-users mailing listTRNSYS-users at lists.onebuilding.orghttp://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org
>>>>>>
>>>>>> --
>>>>>> ***************************
>>>>>> David BRADLEY
>>>>>> Principal
>>>>>> Thermal Energy Systems Specialists, LLC
>>>>>> 3 North Pinckney Street - suite 202
>>>>>> Madison, WI  53703 USA
>>>>>>
>>>>>> P:+1.608.274.2577d.bradley at tess-inc.com
>>>>>> http://www.tess-inc.comhttp://www.trnsys.com
>>>>>>
>>>>>>
>>>>>
>>>>> --
>>>>> *Sherif Saied.*
>>>>> *Tel: (*+2)01004419468 / (+2)01124348957
>>>>>
>>>>> _______________________________________________
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>>>>>
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>>>
>>>
>>> --
>>> *Sherif Saied.*
>>> *Tel: (*+2)01004419468 / (+2)01124348957
>>>
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>
>
> --
> *Sherif Saied.*
> *Tel: (*+2)01004419468 / (+2)01124348957
>
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