Systems

Systems

Systems are modeled with the System spec. Systems the logical structure of buildings meant to group multiple equips that serve a similar purpose. The members of a system do not necessarily have to be in the same physical Space. For example, a Chilled Water System may consist of equipment within the Chilled Water Plant, but also Air Handlers with Chilled Water Coils fed by that plant. Systems do not represent a physical structure unless also paired with an equip tag (e.g., if system is used in conjunction with a plant-equip).

Tags

System entities should define a siteRef tag for their parent tag. All systems subtype from System and are then kebab cased with other valid tags to create the conjunct (e.g., ChilledWaterSystem).

It is also valid for systems to define a systemRef tag to describe a sub-system or primary/secondary relationship. This relationship would imply logical containment, i.e., all members of a sub-system automatically belong to the referent system as well.

Examples

Here are examples of a properly tagged system and member equipment:

//chilled water system for a building
id: @chwSys
dis: “Chilled Water System”
chilled
water
system
siteRef: @site


//condenser water system for a building
id: @cwSys
dis: “Condenser Water System”
condenser
water
system
siteRef: @site


//chilled water plant
id: @chwPlant
dis: “Chilled Water Plant”
chilled
water
plant
equip
siteRef: @site
systemRef: @chwSys


//condenser water plant
id: @cwPlant
dis: “Condenser Water Plant”
condenser
water
plant
equip
siteRef: @site
systemRef: @cwSys


//water cooled chiller, co-membership in both systems
id: @chiller
dis: “Chiller ##”
chiller
equip
siteRef: @site
systemRef: [@chwSys, @cwSys]
equipRef: @chwPlant
chilledWaterRef: @chwPlant
condenserWaterRef: @cwPlant


//heat exchanger, co-membership in both systems
id: @hx
dis: “Heat Exchanger ##”
heatExchanger
equip
siteRef: @site
systemRef: [@chwSys, @cwSys]
equipRef: @chwPlant
chilledWaterRef: @chwPlant
condenserWaterRef: @cwPlant


//chilled water pump
id: @chwp
dis: “Chilled Water Pump ##"
chilled
water
pump
motor
equip
siteRef: @site
systemRef: [@chwSys, @cwSys]
equipRef: @chwPlant
chilledWaterRef: @chwPlant
condenserWaterRef: @cwPlant


//condenser water pump
id: @chwp
dis: “Chilled Water Pump ##"
chilled
water
pump
motor
equip
siteRef: @site
systemRef: [@chwSys, @cwSys]
equipRef: @chwPlant
chilledWaterRef: @chwPlant
condenserWaterRef: @cwPlant