# [TRNSYS-users] Problems with Cooling Type Manager/Maximum above temperature

Jeff Thornton thornton at tess-inc.com
Wed Jan 28 11:12:31 PST 2015

```Ole,

You can set the setpoint as an INPUT and do whatever you'd like at that
point (forcing function, equation, etc.).  Or you can use the simpler
form of that equation:

Tset = -75*SCHED +99

So when SCHED = 1 it's equal to 24 and when SCHED=0 it's equal to 99.

Jeff

---
Jeff Thornton
President - TESS LLC
22 N. Carroll Street, Madison WI USA 53703
Office: (608) 274-2577  Fax: (608) 278-1475
www.tess-inc.com
E-Mail: thornton at tess-inc.com

On 01/28/2015 10:37 am, Ole Nienaber wrote:
> Hi Jeff,
>
> thank you very much for this quite simple and good idea.
> How can I modify my schedule in the Cooling Type Manager the way you
> showed me? Or can I edit the .inf-File?
>
> Greats,
> Ole Nienaber
> Am 28.01.2015 um 14:13 schrieb Jeff Thornton:
>> Ole,
>>
>> Use a slightly different equation;
>>
>> Tset = 24 * SCHED + 99 * (1 - SCHED)
>>
>> Jeff Thornton
>> TESS
>>
>>> On Jan 28, 2015, at 5:35 AM, Ole Nienaber <olenienaber at web.de> wrote:
>>>
>>> Dear All,
>>>
>>> I'm new here.
>>> I have a problem with the cooling demand of a building zone.
>>> I use the Cooling Type Manager to regulate my maximum temperature
>>> (24°c) in the zone. Also I use a schedule, because cooling isn't ON
>>> all the time.
>>> So my formula for the Cooling Type Manager is: 24*SCHED+0. And here
>>> is the problem. If my schedule is OFF (=0), than, of course, the
>>> cooling cools down my room temperature on 0°C. But I just want
>>> control, that the room temperature never increase over 24°C. Is there
>>> another way I could do it?
>>>
>>> Thanks a lot and I hope you all understand the problem.
>>>
>>> Greetings,
>>> Ole
>>> _______________________________________________
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```