BAS Lifespan

[double bubble]

barbera coleman network 8000 circa 1990 in bad shape I mean dampers disconnected not a whole lot working . Would you overhaul system or install new one ?

[Control Man]

Have BARBER COLMAN NETWORK 8000 systems installed in mid 80's still working great.

Disconnected dampers are not always a BAS fault usually poor MAINT or customers who want to save $ and not fix things.

I would do a full inspection of the system and see what it can do before deciding on an overhaul or replacement

[md master]

Have some from the 80' as well, still doing fine. Give er' the once over , make a lsit of what it will take to repair and get into working order. You'll sell that more readily then replacing the whole system.

[sysint]

I'm finding 80's/early 90's stuff to be better off w/planned replacement. Too much infancy in modern DDC. IMO.

Plus the costs are driving down, not up. Replacement of like for like is more expensive than new.

[double bubble]

I"m inclined to agree with sysint although I respect what control man and others are able to do . And your right can"t blame busted actuators on the control system . But even the monitor seems old and outdated .

Sysint could you give more reasons why you would replace .

[sysint]

Actuator lifespans in that time. New ASC controllers are really inexpensive, especially in quantity. Open protocol LON allows you to go a node at a time. The ability to use Ethernet backbone to hop around a building. Unsupported software and OS systems. ....For a few reasons. I always ask the building owner how long he keeps his car before getting a new one. Everything is relative.

[Control Man]

I have customers who want to UPGRADE their BAS in the same manner some people upgrade their computers * EVERYTIME something new of more POWERFUL * shows up on the market.

Also have customers that have TIGHT $ restraints so they go for the lets keep it running.

ASK your customer what he has to spend $ wise before you put a lot of time & effort into quoting something they may not be able to afford.

I changed a monitor this morning that I installed in 1990 was the best $ could buy at the time , hope the new 1 lasts a few years.

[sysint]

I have customers who want to UPGRADE their BAS in the same manner some people upgrade their computers * EVERYTIME something new of more POWERFUL * shows up on the market.

.... why I like the Lonworks. One piece at a time. I have also upgraded early 90's products with recent LON products with no problems. Thats over 12 years of backward compatibility... I have other systems that can't go 5 years back.