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