EQUIPMENT NAMING CONVENTION OVERVIEW

EQUIPMENT NAMING CONVENTION
OVERVIEW
This Equipment Naming Convention gives mechanical and electrical designers an understanding of the University's naming
philosophy. It provides building acronyms that are used in the building automation systems and it provides accepted acronyms
for both systems and system components.
It is highly recommended that designers approach the UofA's F&O Design & Technical Services department
([email protected]) early in their design process to obtain the correct starting points for establishing their nomenclature.
Upon that initial point of contact, we will provide the designer with a 'snapshot' of the existing relevant systems and
components to enable the designer to choose their next available sequential numbers. D&TS can assist with the process of
assigning nomenclature if requested. It is important to follow up with D&TS on the chosen nomenclature to ensure numbering
reservations can be made in the UofA's asset database.
When making that initial point of contact, please provide the following information:
- Project Name
- Building Name
- UofA Project Manager Name
- Components being used in the design (eg: pumps, air handling units). Quantities of these components are not required
at this point
- Systems being designed (eg: lab cold water, lab exhaust, heating water, chilled water)
All new equipment shall conform to this naming convention. Existing tags on existing equipment shall be left as is for the life of
that equipment. New tags may be applied to existing equipment on an as-needed basis.
This convention is used by inhouse University staff and external consultants to the University on both capital and renovation
projects.
Diagrams have been provided at the end of this Equipment Naming Convention to help the designer understand the
application of this convention.
The following guidelines apply when using this Equipment Naming Convention:
The equipment naming convention will have up to three identifiers in this order:
BUILDING IDENTIFIER - SYSTEM IDENTIFIER - COMPONENT IDENTIFIER
Sequential numbers given to components shall be reused where applicable. For example, if an old pump P33 is being
replaced with a new pump and it serves the same function, the new pump shall bear the same sequential number -P33. The
barcodes for the old and new pumps, however, shall be different.
Systems are identifed as either "main" systems or "sub-systems" but not both. In general, main systems refer to systems that
encompass multiple zones. Sub-systems provide the HVAC requirements for a unique zone. Some systems and sub-systems
could be regarded as pieces of equipment, but for the purposes of this convention, they have been identified as systems.
Components are pieces of equipment that make up the system or sub-system.
Equipment shall be named by the building where they are physically located.
All new systems and sub-systems shall conform to this naming convention. Over time, if an entire system or sub-system gets
demolished, that system's sequential number shall not get reused.
UofAEquipNamingConvRev5
EQUIPMENT NAMING CONVENTION
BUILDING IDENTIFIERS
The following acronyms are the accepted central University building automation system (BAS or RCMS) acronyms. Building names in
parentheses denote historical names.
DESCRIPTION
Administration Building
Agri Food Discovery Place
Agriculture-Forestry Centre
Agronomy
Assiniboia Hall
Athabasca Hall
Biological Sciences Building - Botany Wing
Biological Sciences Building - Center Wing
Biological Sciences Building - Genetics Wing
Biological Sciences Building - Microbiology Wing
Biological Sciences Building - Psychology Wing
Biological Sciences Building - Zoology Wing
Book and Record Depository
Brain and Aging Research Building (Environmental Engineering Building )
Cameron Library
Centennial Centre for Interdisciplinary Sciences - Phase I
Centennial Centre for Interdisciplinary Sciences - Phase II
Central Academic Building
Chemical and Materials Engineering Building
Chemistry East
Chemistry West (Physical Sciences Centre )
Clinical Sciences Building
Computing Science Facility
Convocation Hall
Corbett Hall
Dentistry/Pharmacy
Devonian Botanical Gardens Headquarters Building
Earth Sciences Annex (Headhouse ) (Agriculture Greenhouse )
Earth Sciences Building
East Campus Village 11036-87 Avenue - Stonecrop House
East Campus Village 11018-87 Avenue - Juniper House
East Campus Village 8716-110 Street - Rockcress House
East Campus Village 8804-110 Street - Speedwell House
East Campus Village 11015-89 Avenue - Tamarack House
East Campus Village 11047-89 Avenue - Pinecrest House
East Campus Village 11029-90 Avenue - Linden House
East Campus Village 11011-90 Avenue - Alder House
East Campus Village 11024-88 Avenue - Aspen House
East Campus Village 11035-88 Avenue - Maple House
Edmonton Clinic Health Academy (Edmonton Clinic North ) (HSALC )
Edmonton Research Station
Education Car Park (Car Park III )
Education Centre North
Education Centre South
Electrical & Computer Engineering Research Facility ECERF
Ellerslie Research Station
Engineering Teaching and Learning Complex ETLC
Enterprise Square
Faculte St. Jean
Faculty of Business
Fine Arts Centre
Foote Field
General Services Building
UofAEquipNamingConvRev5
BUILDING NUMBER
BUILDING IDENTIFIER
51030
55057
51060
57807
51400
51450
51556
51551
51554
51552
51553
51557
50508
52750
51650
53480
53482
51850
52300
52000
51990
51950
51420
51250
52100
53100
58001
52650
51050
53032
53033
53034
53035
53037
53036
53038
53039
52560
52562
53072
varies
51771
52160
52150
52340
varies
52350
57710
varies
51600
52500
55790
52600
ADM
AFD
AFC
AEB
ASN
ATH
MBC
MBC
GZW
MBC
PSY
GZW
BARD
EEB
CAM
CIS
CIS
CAB
CME
CHE
PSC
CSB
CSF
CON
CHL
DPC
DBG
HHS
ESB
ECV1
ECV2
ECV3
ECV4
ECV5
ECV6
ECV7
ECV8
GHB2
GHB4
ECN
ERS
CAR
EDN
EDS
ECE
ELL
ECE
UDT
FSJ
FBB
FAC
FOT
GSB
EQUIPMENT NAMING CONVENTION
BUILDING IDENTIFIERS
The following acronyms are the accepted central University building automation system (BAS or RCMS) acronyms. Building names in
parentheses denote historical names.
DESCRIPTION
Health Sciences Building
Henry Marshall Tory Building
Heritage Medical Research Centre (includes old Clinical Research Building)
Housing Union Building HUB
Human Ecology Building
Humanities Centre
Industrial Design Studio
Innovation Centre for Engineering
International House
Jeanne and Peter Lougheed Performing Arts Centre
Katz Group Centre for Pharmacy and Health Research (HRIF West )
Law Centre
Ledcor-Zeidler Centre
Li Ka Shing Centre for Health Research Innovation (HRIF East )
Lister Centre
Materials Management Building
Mechanical Engineering Building
Medical Isotope and Cyclotron Facility (Edmonton Radiopharmaceutical Clinic )
Medical Sciences
Morrison Structural Engineering Lab
NANUC National High Field Nuclear Magnetic Resonance Centre
Natural Resources Engineering Facility
Newton Place
North Lecture Theatre
North Power Plant
Old Arts Building (connected to Convocation Hall)
Pembina Hall
Peter Lougheed Hall
Physical Activity and Wellness Centre
RCMS Shop
Research Transition Facility (Nurses' Residence )
Rutherford Library North
Rutherford Library South
Saville Sports Centre
South Academic Building (Civil and Electrical Engineering )
Southfield Car Park Building
St. Joseph's Women's Residence
Students' Union Building
Telus International Centre
TIMMS Car Park
Timms Centre for the Arts
Triffo Hall (Killam Centre )
Universiade Pavilion (University Fieldhouse ) (Butterdome )
University Faculty Club
University Hall
University Terrace
Van Vliet Centre (Physical Education and Recreation Centre ) East
Van Vliet Centre (Physical Education and Recreation Centre ) West
Vehicle Pool
Windsor Car Park
UofAEquipNamingConvRev5
BUILDING NUMBER
BUILDING IDENTIFIER
53090
54550
53080
54410
53700
51260
51150
52305
53030
58228
51510
52950
53086
53087
53000
53630
52310
55780
51500
54300
53580
52360
53610
53485
53600
51250
53350
53040
53420
53550
53070
53200
53850
55785
52250
51790
56538
54400
54370
52491
52490
54050
54321
52400
54650
52200
53410
53400
55150
51760
HSB
HMT
HMR
HUB
HEB
HUM
IDS
ICE
INH
CPA
HRW
LAW
LZC
HRE
LST
MMB
MEE
ERC
MSC
STR
NMR
NRF
NPL
NLT
NPP
ART
PMB
PLH
PAW
RCM
RTF
RUT
RUT
SAV
CEB
SCP
SJR
SUB
TEL
TCP
TIM
KIL
UFH
UFC
UHL
EXB
PEC
PEC
VPL
WCP
EQUIPMENT NAMING CONVENTION
MAIN SYSTEM IDENTIFIERS
MECHANICAL
Note 1: Request "snapshots" (see Overview) for systems with a '#' suffix.
Note 2: The '#' suffix means it requires a unique sequential number chosen by the designer after reviewing the "snapshot." Choose the next available
sequential number.
Note 3: Piping linetypes shown on drawings and schematics shall match their system identifiers.
Note 4: Piping identification in the field shall match the linetypes shown on drawings and schematics.
SYSTEM IDENTIFIER
AHU#
GEXH#
LEXH#
GRS#
MAU#
SMK#
FIELD
TAG
YES
YES
REMARKS
DESCRIPTION
Air Handling Unit
Exhaust - general
Exhaust - lab
General Return System
Make-Up Air Unit
Smoke Removal System
Includes rooftop units and corridor pressurization units. Does not include dedicated
exhaust systems or make-up air units.
Washrooms, janitor rooms, storage rooms
Fume hood exhaust, general lab exhaust
Return fans working together to serve more than one air handling unit
100% outdoor air unit
Condensate - High Pressure Steam condensate - gravity line
Condensate - Low Pressure Steam condensate - gravity line
Condensate - Medium
Steam condensate - gravity line
Pressure
HPCOND#
LPCOND#
MPCOND#
PCOND#
Condensate - Pumped
HPS#
Steam - High Pressure
LPS#
Steam - Low Pressure
MPS#
Steam - Medium Pressure
PHPS#
Steam - Pure High Pressure Clean steam systems
PLPS#
Steam - Pure Low Pressure Clean steam systems
PMPS#
Steam - Pure Medium
Pressure
CHW#
Chilled Water - building
UTCHW#
CNDW#
Chilled Water - from utility
Condensor Water
CGLY#
Glycol - cooling
HRGLY#
HGLY#
HCGLY#
GSL#
HW#
RHTHW#
Glycol - heat recovery
Glycol - heating
Glycol - heating/cooling
Ground Source Loop
Heating Water
Heating Water - reheat
PL#
Plug Load
RADHGLY#
RADHW#
RADHC#
SLABHGLY#
Radiation - glycol heating
Radiation - heating
Radiation - heating/cooling Dual use
Slab System - glycol heating
SLABHW#
Slab System - heating
Slab System heating/cooling
Snow Melt
SLABHC#
SM#
CA#
DUST#
FIRE#
FUEL
FUELVENT
YES
Compressed Air
Dust Collector
Fire Sprinkler System
Fuel System
Fuel System Vent Line
SAN
Sanitary Plumbing System
STORM
VACDM#
Storm Plumbing System
Vacuum Dry Mop
UofAEquipNamingConvRev5
YES
Steam condensate - pumped
Clean steam systems
The system that serves chillers or cooling towers.
Dual use
For systems whose purpose is equipment heat load shedding which are separated
from the main chilled water system by a heat exchanger.
Dual use
For control systems
Eg: woodworking shop applications.
Piping identification for emergency generators.
Piping identification for emergency generators.
EQUIPMENT NAMING CONVENTION
MAIN SYSTEM IDENTIFIERS
MECHANICAL
Note 1: Request "snapshots" (see Overview) for systems with a '#' suffix.
Note 2: The '#' suffix means it requires a unique sequential number chosen by the designer after reviewing the "snapshot." Choose the next available
sequential number.
Note 3: Piping linetypes shown on drawings and schematics shall match their system identifiers.
Note 4: Piping identification in the field shall match the linetypes shown on drawings and schematics.
SYSTEM IDENTIFIER
FIELD
TAG
DESCRIPTION
REMARKS
DEMIN#
DCW#
DHW#
Demineralized Water
Domestic Cold Water
Domestic Hot Water
DHWR#
Domestic Hot Water Recirc Use industry standard linetype designation
DTW#
Domestic Tempered Water
GW#
HELRCV#
LAR#
LCW#
LCA#
LDEMIN#
LHEL#
LHW#
LHWR#
LHYD#
LNATGAS#
LNIT#
LOXY#
LP10#
LTW#
Grey Water
Helium Recovery
Lab Argon
Lab Cold Water
Lab Compressed Air
Lab Demineralized Water
Lab Helium
Lab Hot Water
Lab Hot Water Recirc
Lab Hydrogen
Lab Natural Gas
Lab Nitrogen Gas
Lab Oxygen Gas
Lab P10 Gas
Lab Reverse Osmosis
Water
Lab Tempered Water
LTWR#
Lab Tempered Water Recirc Dedicated lab system
LVAC#
NATGAS
RO#
Lab Vacuum
Natural Gas
Reverse Osmosis Water
LRO#
YES
Not a lab supply system.
Use industry standard linetype designation
Use industry standard linetype designation
Not a lab supply system.
Dedicated lab system
Dedicated lab system
Dedicated lab system
Dedicated lab system
Dedicated lab system
Dedicated lab system
Dedicated lab system
Dedicated lab system
Dedicated lab system
Dedicated lab system
Dedicated lab system
Dedicated lab system
Dedicated lab system
Dedicated lab system
Dedicated lab system
Not a lab supply system.
Not a lab supply system.
ELECTRICAL
Note 1: The unique system identifier '#' suffix shall be built up as follows:
{(6)00,(4)80/60,(3)80/400,(2)08} Voltage +
{(A),(B),(C)…} Optional MDP Side or Riser/Sub-System Division +
{(1),(2),(3)…} Optional Riser/Sub-System Organization (only allowed if previous division level already used; otherwise use previous level only).
Note 2: Devices that are the root of a new System/Sub-system (eg. TXs & ATSs) are labeled as part of the child system.
Note 3: Starters shall be assigned to the mechanical system they control in the same manner that VFDs are. See Component page for further details
on this.
SYSTEM IDENTIFIER
FIELD
TAG
DESCRIPTION
BPWR#
YES
Back-Up/Alternative Power
EPWR#
NPWR#
SPWR#
YES
YES
YES
Emergency Power
Normal Power
Standby Power
UofAEquipNamingConvRev5
REMARKS
Backup/alternative power system usually upstream of ATS's. Typically comprised of
generator(s) and any generator side distribution, but PV or other alternative power
included as well. If there is a single device without ATS and anti-islanding protection
only, then just that device is in the system.
Emergency L/S ATS and downstream distribution.
Building utility/normal power distribution.
Standby Power ATS and downstream distribution.
EQUIPMENT NAMING CONVENTION
SUB-SYSTEM IDENTIFIERS
MECHANICAL
Note 1: Request "snapshots" (see Overview) for systems with a '#' suffix.
Note 2: The '#' suffix means it requires a unique sequential number chosen by the designer after reviewing the "snapshot." Choose the next available
sequential number.
SUB-SYSTEM IDENTIFIER
ACF#
ACU#
FIELD
TAG
YES
YES
REMARKS
DESCRIPTION
Air Curtain Fan
For overhead doors
Includes standalone units where compressor and evaporator are all one unit or
ductless split air conditioning units. See System Example.
Air Conditioning Unit
AVE#
YES
Air Valve - Exhaust
AVS#
YES
Air Valve - Supply
YES
Air ventilation optimization
sensor suite
Air sampling/monitoring systems
Chilled Beam
The chilled beam system for an individual zone requires a system sequential
number for each chilled beam unit (maintenance purposes).
AVO#
CHBM#
FCU#
FF#
HPU#
HRV#
IRH#
IU#
YES
YES
YES
YES
YES
YES
Fan Coil Unit
Forced Flow Cabinet
Heat Pump Unit
Heat Recovery Ventilator
Infrared Heater
Induction Unit
RHC#
YES
YES
Reheat Coil
TBE#
YES
Terminal Box - Exhaust
TBR#
YES
Terminal Box - Return
TBS#
YES
YES
Terminal Box - Supply
UH#
Air control valve. All such valves within a building are grouped within a single
sequential number series. (EG: AVE1, AVS2, AVS3, AVE4, etc.)
Unit Heater
hydronic or electric, wall mount or ceiling mount, includes furnaces
Standalone unit
Overhead heater
The induction unit system for an individual zone requires a system sequential
number, not each induction unit.
Standalone zone control
Constant and variable boxes. All such boxes within a building are grouped
within a single sequential number series. (EG: TBS1, TBS2, TBE3, TBR4,
TBE5, etc.)
Overhead heater
ELECTRICAL
SUB-SYSTEM IDENTIFIER
LCS#
UofAEquipNamingConvRev5
FIELD
TAG
YES
REMARKS
DESCRIPTION
Lighting Control System
Lighting Control System Module
EQUIPMENT NAMING CONVENTION
COMPONENT IDENTIFIERS
MECHANICAL
Note 1: Request "snapshots" (see Overview) for systems with a '#' suffix.
Note 2: The '#' suffix means it requires a unique sequential number chosen by the designer after reviewing the "snapshot." Choose the next available
sequential number.
COMPONENT IDENTIFIER
FIELD
TAG
E
R
S
T
BF#
YES
Air diffuser/grille - exhaust
Air diffuser/grille - return
Air diffuser/grille - supply
Air diffuser/grille - transfer
Fan - Booster
CF#
YES
Fan - Circulation
EF#
RF#
SF#
TF#
FH#
HTW
YES
YES
YES
YES
YES
Fan - Exhaust
Fan - Return
Fan - Supply
Fan - Transfer
Fumehood
Heat Wheel
HU#
YES
Humidifier
SIL
B#
CH#
CC
HRC
HC
HCC
PHC
PHCC
Overhead ceiling fan. This would not be assigned to a specific system or subsystem.
Wand, grid, or standalone units. Sequential number only applies to standalone
steam generating units.
Silencer
YES
YES
RHC
Boiler
Chiller
Coil - Cooling
Coil - Heat Recovery
Coil - Heating
Coil - Heating/Cooling
Coil - Preheat
Coil - Preheat/Cooling
Coil - Reheat
CT#
DC#
YES
YES
Cooling Tower
Cooling Tower - Dry
CTF#
YES
Cooling Tower Fan
DCF#
YES
Cooling Tower Fan - Dry
YES
Direct Exchange
Condensing Unit
DXU#
REMARKS
DESCRIPTION
EBH
Only on exhaust systems, not air handling units.
Dual use
Dual use
Refers to a coil within an air handling unit. A standalone reheat coil that defines
a temperature control zone (space) is assigned a sequential number - see subsystem identifiers.
Cooling coils and condensing units providing cooling for an air handling system.
Together the coils and condensing unit would be assigned one DXU# as part of
the air handling unit system.
Electric Baseboard Heater
HX#
YES
Heat Exchanger
WH#
YES
Hot Water Heater
P#
YES
Pump
Includes standalone electric or natural gas units, water storage tanks with
integral heating coils (steam or hot water supply), etc.
Does not include sump pumps (see SUMP#)
RP
Radiant Panel
Ceiling mounted, cooling or heating
RAD
Radiation Cabinet Convection
Wall mounted
FLTEA
FLTF
FLTHEPA
FLTP
FLTR#
FLTUV
Filter - Exhaust Air
Filter - Final
Filter - HEPA
Filter - Pre
Filter - Roll
Filter - Ultra-violet
FLTW#
SEP
UofAEquipNamingConvRev5
YES
YES
Filter - Water
Separator
Mechanically driven roll filter
"LAKOS" type filter/separators are the only water filters tracked with a
sequential number.
Air or water. Does not include "LAKOS" type filter/separators.
EQUIPMENT NAMING CONVENTION
COMPONENT IDENTIFIERS
MECHANICAL
Note 1: Request "snapshots" (see Overview) for systems with a '#' suffix.
Note 2: The '#' suffix means it requires a unique sequential number chosen by the designer after reviewing the "snapshot." Choose the next available
sequential number.
COMPONENT IDENTIFIER
AD
BFP#
DF
FD
G
HB
NFHB
LAV
MS
RD
SI
SH
ESH#
SK
SUMP#
UR
WC
WS
FIELD
TAG
YES
YES
YES
REMARKS
DESCRIPTION
Area Drain
Backflow Preventor
Drinking Fountain
Floor Drain
Garburetor
Hose Bib
Hose Bib - Non-Freeze
Lavatory
Mop Sink
Roof Drain
Sediment Interceptor
Shower
Includes trench drains.
Shower - Emergency
Eyewash or otherwise
Sink
Sump
Urinal
Water Closet
Water Softener
Refrigerated or otherwise.
Refers to the sump pump.
AAV
Valve - Air Admittance
ABV
Valve - Automatic Balancing Eg: for hydronic terminal units
Valve - Emergency Gas
Shut-off
Valve - Isolation
Valve - Moisture
EGSV
ISO
MV
PV#
YES
Valve - Pressure Reducing
PSV#
SV
TV
YES
Valve - Pressure Safety
Valve - Solenoid
Valve - Temperature
TMV
Control valve
Control valve
Control valve. Water, steam, gas. In the case of a steam pressure reducing
valve it may include either a pneumatically controlled valve or a mechanical
valve. These are assigned a single sequential number series for the building
regardless of what system it belongs to.
Pressure relief/safety
Control valve
Valve - Themostatic Mixing Water blending valve
ADR#
CMPR#
C3H8
CO
CO2
NH3
NO2
H2
H2S
O2
YES
YES
BTUMT#
YES
KWMT#
YES
WTRMT#
YES
RH
ST
Air Data Router
Air compressor
Gas Detection
Gas Detection
Gas Detection
Gas Detection
Gas Detection
Gas Detection
Gas Detection
Gas Detection
Meter - Btuh (chilled water
and steam)
Meter - Kilowatt (electricity)
Meter - Water (make-up
water)
Range Hood
Steam Trap
TK#
YES
Tank
VACP#
VFD#
YES
YES
Vacuum Pump
Variable Frequency Drive
UofAEquipNamingConvRev5
For island sink vent lines.
Propane
Carbon monoxide
Carbon dioxide
Ammonia
Nitrogen dioxide
Hydrogen
Hydrogen Sulfide
Oxygen
Consumption meter. These are assigned a single sequential number series that
includes BTUMT#, KWMT#, and WTRMT# (EG: KWMT1, KWMT2, WTRMT3,
etc.)
For individual suite kitchen.
Storage tanks for any kind of media (condensate, water, fuel, etc.). Includes
expansion tanks and glycol fill tanks. Does not include sumps.
Laboratory vacuum system.
Includes VFDS that control fans, pumps, etc.
EQUIPMENT NAMING CONVENTION
COMPONENT IDENTIFIERS
ELECTRICAL
Note 1: The component identifier '#' suffix, except for starters (see Note 1 mechanical), shall be of the form "[F]D-X" and built up as follows:
{[F] => Floor location; alphanumeric and multi character acceptable; must be unique to building. Optional.} +
{D=> Device Designator. Alphanumeric and multi character acceptable but single numeric preferred (although redundant 'B', 'E', & 'S' encouraged for
Backup, Emergency, & Standby system devices, e.g. "EPWR6-PNLE1"); must be unique to floor in that device class or building if floor locations are not
used for that device class.; CDPs and PNLs are considered one class for this purpose.}
X => Not an official part of device designation but represents breaker positions, lighting switch ccts, or MCC cells when identifying upstream device.
Separate by commas for multiple poles and, due to space limitations, only use "[F]D" for wall plate identification of upstream panels.
Note 2: Starter component identifiers require sequential numbering which will be assigned by Design & Technical Services during the project design
phase. They will also be classifed under the mechnical system they control.
COMPONENT IDENTIFIER
FIELD
TAG
DESCRIPTION
ATS#
YES
Automatic Transfer Switch
DISC#
GEN#
YES
YES
Disconnect
Generator
MCC#
YES
Motor Control Centre
OCC#
YES
Occupancy Sensor
CDP#
YES
Panel - Central Distribution
PNL#
YES
Panel - Distribution
LTG#
YES
Panel - Lighting
MDP#
YES
Panel - Main Distribution
START#
YES
Starter
TX#
YES
Transformer
UofAEquipNamingConvRev5
REMARKS
Automatic Transfer Switch for emergency or standby power systems.
Considered part of system they feed.
Fused or unfused disconnects.
Generators or PV for backup/alternative power.
Motor Control Centre. Individual cells can be assigned positions as MCC#-X
when referencing breaker or starter postions; however starter cells are labeled
as individual starters and only cross referenced to parent MCC. See below.
Lighting Control Occupancy Sensor
Central Distribution Panels that generally serve major equipment and/or other
Panels. 18-100 kAIC.
Normal distribution panels for lighting or power outlets and equipment. 14,18,
or 25 kAIC.
Lighting Control Panel; Douglas, Lutron, etc.
Main Distribution Panels that generally serve CDPs, MCCs, and/or major
equipment. Usually 2 in standard UofA MTM configuration. 65+ kAIC.
Starters are sequentially numbered thoughout building and belong to the
mechanical system they control. See Note 1 Mechanical.
Transformers. Change system designator to secondary voltage and
considered part of that downstream system.