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01-23-2013, 01:18 PM #1New Guest
- Join Date
- Jan 2013
Connecting Metasys to 2 new Weil Mclain Ultra 750's
I am new to BMS and have been tasked with upgrading from 2 Cleaverbrooks oil burners to Weil Mclain Ultra 750's.
The installation is complete and fired the units up this morning.
Now I need to tie them into the BMS.
I am running and old metasys system hyper terminal 5.1 to control the facility.
What I am looking to do is wire the new WM boilers into the existing metasys.
I am also planning to upgrade to an NAE should I do that first?
Any help would be greatly appreciated.
01-23-2013, 08:33 PM #2Professional Member
- Join Date
- Sep 2008
- Cedar Rapids, IA
The building headend controller is an FX-60 which works well with all of the N2 bus devices we have. There is a default program in the UNT to control the boilers with outdoor air reset, but we wrote some custom control objects in the FX that do a better job of deciding how many boilers to run and which ones have the least hours on them.
01-24-2013, 04:58 PM #3
One of the problems I've seen with running boilers by which one has the least amount of hours is during a download. Then all the hours ar set to zero and system doesn't know what to do. I've always put a command to select boilers if all the hours are the same.