Multiple Services single chiller "system"

[xguard]

I have a building where we intend to add a separate meter (same Utility transformer). The new meter will only be for the building's chiller. My point of confusion or concern is that connected to the chiller there is piping. The piping is connected to pumps and sensors that are powered through the existing meter, service disconnect, etc.

Maybe this is no different than any other single building with multiple meters and service disconnects. One concern I have is one service disconnect will be outside next to the utility transformer while the other will be inside the building in the electrical room.

This is one of those that "seems" off to me but that may just be a me problem and not a code problem. I can't think of a specific reason why I can't do this.

I'd appreciate any input if you can see a problem here. Thank you.

 

[jumper]

I am not sure exactly what is your concern.

The systems are only interconnected through bonding/EGCs of equipment, not a problem.

Not really different than having 277V and 120V in a switch box, the devices get a barrier but the EGCs get tied together.

 

[Vince1971]

If it comes from the same utility transformer it's still one service. You have a "grouping of disconnects" issue now.

 

[david]

If it comes from the same utility transformer it's still one service. You have a "grouping of disconnects" issue now.

Actually the # of service you have can and do come from the same utility transformer at times

The number of utility laterals you have at different locations in the same building.

The number of utility service drops you have or any combination of service laterals and service drops you have

The number of building connections to a utility determines the number of services you have

 

[xguard]

If it comes from the same utility transformer it's still one service. You have a "grouping of disconnects" issue now.

It will come off the same transformer but will be a separate set of conductors. The conductors from the transformer won't come in at the same point and then split. I'm thinking this is no good.

 

[xguard]

Actually the # of service you have can and do come from the same utility transformer at times

The number of utility laterals you have at different locations in the same building.

The number of utility service drops you have or any combination of service laterals and service drops you have

The number of building connections to a utility determines the number of services you have

I'm having trouble following what you are saying.