[Equest-users] 答复: what's the default equipment control?

[Jiao, Joey]

Hi John & everyone:

Thank you for your helps , I just check that, but it seems different than we thought. 

The PS-H report show the chiller water loop run hours. I add it in the form, so you can get it clear.

Equipment control

Chiller 1a

Chiller 1b

Chiller 1c

Chiller Water Loop

None

2126

624

607

2750

Chiller1~3 to seq 1~3

2750

607

0

2750

All Chillers seq 1

2750

2750

2750

2750

Now you can find that , the loop run hours for all control types is 2750. 

If the default control type as we thought , the chiller 1a should be 2750 equal to the run hours of  Chiller Water Loop, because in any situation , the chiller 1a should first and always be used. 

Maybe I think too much. But it is a software , I think there must be a sample and clear way for the default control. 

Thank you for your help again. 

 

Joey 

 

 

发件人: John Aulbach [mailto:jra_sac at yahoo.com] 
发送时间: 2012年3月22日 13:20
收件人: Jiao, Joey; Equest-users at lists.onebuilding.org
主题: Re: [Equest-users] what's the default equipment control?

 

Joey:

 

I am guessing, but I BELIEVE Chiller-1 gets to a certain load (think it's defined in the chiller setup), then Chiller-1 and Chiller-2 share the load until Chiller-3 is needed, when all three share the load.

 

See if that makes sense.

 

John Aulbach

Partner Energy

 

________________________________

From: "Jiao, Joey" <Joey.Jiao at WSPGroup.com.cn>
To: Equest-users at lists.onebuilding.org 
Sent: Wednesday, March 21, 2012 7:49 PM
Subject: [Equest-users] what's the default equipment control?

 

Hi, everyone:

What’s the default equipment control when a loop with more than 1 plant?

At first I think the default should be” chiller1a- sequence 1, chiller 2a-sequence2, …” or all the chillers with the same sequence 1.

But my experiment shows it different than my think . 

 I make a system with 3 chiller and make a calculation under different control way.

The result run hour shows below:

Equipment control

Chiller 1a

Chiller 1b

Chiller 1c

None

2126

624

607

Chiller1~3 to seq 1~3

2750

607

0

All Chillers seq 1

2750

2750

2750

So I’m puzzled with how should the software control more than 1 plant when there is no equipment control set?

 

Any suggestion should be appreciated.

Thank you very much. 

 

Joey


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