07 GSA Data Normalization for Building Automation Systems_v25.pdf

GSA Public Buildings Service Office of Facilities Management - Facility Technologies

GSA Data Normalization for Building Automation Systems

Required NCMMS asset parameters, how NCMMS interacts with Building Automation System (BAS) points, standardizing BAS point names and standardizing data tagging methods within the GSA.

DOCUMENT CHANGE LOG

Date Revision Comment By 01/17/2019 2.5 Additional language for Siemens based systems, modified

Asset Matching section to support new “BAS Name” field, updated Appendix B and C.

CPayne

04/05/2018 2.4 Additional language for Niagara based systems, corrections to Appendix-C, updated Appendix-B

CPayne

11/27/2017 2.3 Compliance for 508 added. CPayne 10/06/2017 2.2 Added Variable Refrigerant Flow (VRF) to Appendix C CPayne

9/8/2017 2.1 Modified Appendix B per BIM Program review. CPayne 8/8/2017 2.0 Edited based on final draft review and BAS manufacturer review. Release version 2.0 created CPayne

7/25/2017 1.3 Edited based on regional Smart Building POC comments and suggestions (all regions.) Final Draft.

CPayne

7/03/2017 1.2 Post QC review modifications completed and NCMMS team review modifications completed.

CPayne

6/16/2017 1.1 Document restructuring after initial review.

New draft created with comments reset for QC review.

CPayne

6/2/2017 1.0 Draft document created for review. CPayne

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TABLE OF CONTENTS

Section 1 - Introduction

Section 2 - Intended Audience & Applicability

Section 3 - Definitions

Section 4 - National BAS Object Naming Standard

Section 5 - BAS Server Level Point Requirements

Section 6 - Tagging

Section 7 - NCMMS Asset Matching

Appendices

Appendix A - Points Required at the BAS Server Level

Appendix B - NCMMS Asset “Type” Option List

Appendix C - National BAS Object Naming & Tagging Standard

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SECTION 1 - INTRODUCTION

The GSA has created national programs and implemented enterprise technology to better utilize the time required to manage the thousands of GSA facilities. As part of leveraging this technology, the GSA intends to standardize data for building systems by implementing a standard for BAS equipment/point naming conventions and point tagging. As regional buildings are connected at the national level for systems such as NCMMS-Maximo and GSAlink, normalizing provides a smoother and faster path to integration when programmers know what to expect when connecting to various Building Automation Systems.

This document is designed to establish standardized requirements related to BAS point naming, implement Haystack tagging requirements, and clarify the necessary fields in the National CMMS Maximo system for matching assets to Building Automation System (BAS) equipment across the GSA portfolio.

In the following sections, this document will guide you through the requirements for BAS point naming, outline the requirement for data tagging by standardizing on the Project Haystack open source data initiative and cover the proper procedure when configuring NCMMS Asset naming.

SECTION 2 - INTENDED AUDIENCE & APPLICABILITY

1. GSA AND O&M PERSONNEL shall use this document to correctly configure the National

CMMS assets (Section 7) so that all BAS related assets match the equipment as named in the BAS. This document can also be utilized to better understand the BAS naming convention and the Haystack tagging requirements.

2. BMC SYSTEM CONTRACTORS shall utilize this document to configure all building systems with the perspective of the GSA’s overall portfolio. All new installation and *renovated systems shall be configured with the naming and tagging conventions as described within this document to provide consistency throughout all of the GSA. All BMC system-related documentation and submittal packages shall reflect these naming and tagging conventions. A point summary table shall be created by the BAS contractor and kept current throughout the duration of the project as the master list of all I/O points. A minimum BAS server-level point list is provided within this document to accurately engineer, specify, and quote BAS projects. Project closeout documents shall include an up-to-date and accurate “Point Summary Table”, along with relevant commissioning documentation related to point tagging checkout. For each project, the contractor shall submit the documentation for approval prior to final acceptance of the system. The point summary table shall be used as a reference and guide throughout the commissioning process.

*Renovated systems applies to major upgrades which replace existing programming along with equipment and system renovations. The standard as described within this document does not require partial renovations to modify existing programming and point names that don’t fall under the scope of work or may negatively impact other existing programming.

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SECTION 3 - DEFINITIONS

1. Point – Points are typically a software level variable representing a digital or analog sensor or actuator type object or entity (sometimes called hard points). Points can also represent a configuration or programmed value such as a setpoint or schedule log (sometimes called soft points). Typically, the attributes of a point constitute a point object.

2. Tag – A tag is a name/value pair applied to an object or entity within the Building Automation System and is further defined by referencing Project Haystack. A tag defines a fact or attribute about an object or entity and can also be known as “metadata.”

3. NCMMS – The GSA’s National Computerized Maintenance Management System. The National CMMS is a central repository (database) for all maintainable GSA assets that runs on the Maximo software platform. The NCMMS provides a mandatory, agency-wide means and method for processing and reporting all maintenance work and repairs done for PBS regardless of region or contractor.

4. NCMMS Asset – NCMMS assets are used to store asset numbers and corresponding information, such as parent, location, vendor, status, description, and maintenance costs for each asset in the Maximo system. You can build the asset hierarchy as an arrangement of buildings, departments, assets, and subassemblies.

http://project-haystack.org/

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SECTION 4 - NATIONAL BAS OBJECT NAMING STANDARD

As stated in the introduction, implementing a standard for BAS equipment and point naming provides added value to the GSA. As regional buildings are connected at the national level for systems such as NCMMS-GSAlink and SkySpark, normalizing offers a smoother and faster path to integration, as programmers know what to expect when connecting to various BAS.

As times and technology have progressed, there are now different methods utilized to normalize data. One method is to standardize BAS object and point naming conventions. The second method covered in this document will be described in “Section 6 –Tagging”. There is a great deal of value in normalizing regional/building server BAS names, building names, global controller names, floor IDs, equipment abbreviations and point names. Having a unified hierarchy across the GSA portfolio will make national level implementations less complex and less costly overall.

This GSA Smart Building Technology Device & Object Naming Standard is intended to standardize the names and tagging of BAS, Lighting, Metering, and other devices and control objects.

Note: It is understood that certain BAS manufacturers will have different requirements and limitations regarding acceptable character types and overall character length limitations.

Note for Niagara Integrators: It is understood that certain manufacturers allow for more generalized “tree” structuring of objects which means aspects like equipment name and building do not necessarily have to be included in the point name due to parent/child folder structuring (see example under Object Name Anatomy or in Appendix-C.)

Note for Siemens Integrators: It is understood that certain Siemens legacy controllers do not support the underscore “_” separator within the object or point name. In these instances, a period “.” shall be used to separate the different portions of the object or point name (see example under Object Name Anatomy or in Appendix-C.)

The provided documentation and diagrams in Appendix-C are intended to give the project engineer and technician the ability to find the appropriate names and tags for each object based on GSA requirements. The diagrams show generic HVAC, lighting, metering, and other equipment containing control points and objects, some of which may or may not be present in a particular application.

All device tagging and object naming shall be submitted to the GSA Regional Office of Facility Management (OFM) or the Facilities Management Division (FMD) for review and approval prior to implementation – any system objects implemented prior to OFM/FMD approval shall be corrected by the vendor at no additional cost to GSA.

Any control object, tag or point that is not represented in this document must be submitted to the OFM/FMD via RFI. A response will be generated identifying the name that should be used for the application. If the supplied name is not currently represented in the standard document, it may be added.

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Note: It is understood that the object names for some products cannot be modified (i.e. “canned application” or “pre-configured” controllers.) These devices/object names shall be submitted with an indication that the controller cannot be customized.

1. Process

This Object Naming Standard shall be implemented according to the following process:

a. Engineer automation system to understand what objects are required.

b. Using the National BAS Object Naming & Tagging Standard document

(APPENDIX-C), identify and document the standardized names and tags for the control objects and devices.

c. Submit the proposed names to the OFM/FMD.

d. Receive comments back, correct errors, and resubmit. Repeat process until all issues are resolved.

e. Object naming is approved by OFM/FMD.

f. Implement names and tags into the BAS database and programming.

Failure to follow and complete these steps in order may result in substantial re-work by and at the expense of the BAS contractor.

2. Scope

This Object Naming Standard covers all BACnet-discoverable devices and objects which includes:

a. AI, AO, AV, BI, BO, BV, MO, & MV point types

b. Calendar objects (Cldr)

c. Schedule objects (Sched)

d. Trend Log objects (Td)

e. Event Enrollment objects (Evt)

f. Notification Class objects (Not)

g. File objects (File)

h. Command objects (Cmd)

i. Devices

This Standard also covers all points, registers, etc. (objects) that are mapped using a driver, integration device, or system (such as Niagara Framework), and any additional objects created in the integration device or system. For example, registers mapped from a third-party Modbus device to a BAS controller or integration device using a driver must be named using this Standard.

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3. Understanding the Standard

To properly implement this Object Naming Standard, it is important to understand the intended goal, the desired outcome, the design philosophy of the naming system and the methodology used to meet those goals.

GOAL:

Ensure that the way the BAS devices and objects are named, enables any user of the system or system data to instantly identify the device or object and understand the function of system objects, whether they are sensors, actuators, schedules, trend logs, etc. A user can be a human operator, but it can also be a computer that stores or processes information from the system.

PHILOSOPHY:

To allow a human to instantly identify a device or object simply by reading the name. At minimum, the name must indicate which building, what equipment/system to which it is associated, the type of object, and the object’s primary function. The parts of the name must be human-readable using standardized abbreviations. These standardizations allow an operator or analyst to read, search, sort, group, and filter objects with ease.

A computer interpreter of any type would be able to use the building and equipment/system indications to group objects. To make the function of an object clear to a machine, the object type/function portion of the name is composed of standardized “camel-cased” abbreviations that a computer can break apart and use to automatically apply metadata tags. These tags allow applications, such as analytics engines or CMMS, to interpret information directly from the BAS or from a trend archive and create actionable responses and outputs.

METHODOLOGY:

To create names that are both human-readable and machine-readable, the structure and abbreviations of the names are standardized. Each name has three parts separated by underscores: Building Number, Equipment Designator, and Object Name. (See the “Object Name Anatomy” section below for technical details on structure standardization.)

Building Numbers are provided by GSA in accordance with a pre-existing numbering system. The “Equipment Designator” is a free-form field; the mechanical drawings equipment schedule can be used as a guide. The “Object Name” is a camel-cased, standardized name for the object.

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4. Object Unit Descriptions

Object units are suggested in parentheses, such as: (°F)

For analog points, the engineering units are provided. Engineering units are standardized, and the OFM/FMD should be consulted where the standard units are inappropriate for the measurement or application.

Generally, analog outputs are expressed in percent (%, or pct). For valves and dampers, %open/%closed is used. 0% open would indicate that the control object is closed. 100% open would indicate that the control object is open. For mixing dampers, diverting valves, face/bypass dampers, etc., see unit indications where objects are found in diagrams in this document.

Binary outputs are generally expressed with (Off/On). Other binary units are provided depending on the application. The order of the state text labels is determined by the default position of the device. For example, a damper that is normally closed would use the units (Closed/Open), whereas a damper that is normally open would use (Open/Closed).

This Section Intentionally Left Blank

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5. Object Name Anatomy

See ABRV page for Standard Point Name abbreviations.

Underscore “_” Delimiter (Siemens legacy controllers utilize period “.”)

Building_Equipment_Object

Object Name Anatomy

IMPORTANT

NEVER EXCEED 45 CHARCTERS

See MTR page for metering object naming standard – metering objects follow a modified naming standard

Building Number

Equipment/ Location Designation

Standard Object Name

Up to 6 characters as-needed

16-31 characters as-needed

Number of characters available depends on BAS product limitations. At the beginning of a project, the BAS limitation should be considered to ensure that names can be accommodated within the characters available. Some adjustments may be required.

Always 6 characters, always designated by

GSA

No formal standard – best practice is to use the equipment designations used in the building’s mechanical drawings

Always use standardized names found in this document.

SS####_EEEEEE_PPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Niagara Example

Full Name Example

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6. Typical Conventions (Suffixes with Examples)

Ena Usually applied to BV objects. An “Ena” point indicates that conditions have been met to allow a device to be commanded, but is not the actual command.

• CHWSysEna

• HHWSysEna

• BlrEna

• EconEna

Cmd Usually applied to BO and AO objects, and sometimes BV and AV objects also. A “Cmd” point commands something – starts a motor, modulates a valve, etc.

• SFCmd

• ChlrCmd

• MADmprCmd

• BlrCmd

• CCVlvCmd

• CTDivVlvCmd

Sts Usually applied to BI objects. Corresponds to the “Cmd” point. This is the actual status of the commanded equipment.

• SFSts

• ChlrSts

• SFVFDSts

• CHWPmpSts

Pos Applied to AI objects, “Pos” is feedback from a device such as a valve or a VFD.

Corresponds to command (Cmd) in the case of a valve or damper, or speed (Spd) in the case of a VFD.

• CCVlvPos

• CTFPos

• MADmprPos

• SashPos

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Sp Applied to AV objects, “Sp” is shorthand for Setpoint. Used to indicate the setpoint that corresponds to a control variable.

• SATmpSp

• CHWSTmpSp

• SAStPrsSp

• HWSFlwRatSp

• CHWSysOATmpEnaSp

Alm Usually applied to BI or BV objects (but not limited to). Alarm (Alm) should only be used on objects that have a corresponding event notification.

• BlrAlm

• MATmpAlm

• LowTempAlm

• DAStPrsAlm

• FireAlm

• ServiceAlm

Td Applied to the end of an object name to indicate that it is the trend object associated with the control point object.

• SATmpTd

• SFStsTd

• CCVlvCmdTd

• MATmpSpTd

Sched Applied to schedule objects.

• AHU01_Sched

• IceSys_Sched

• CHW_Sched

• EF01_Sched

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SECTION 5 - BAS SERVER LEVEL POINT REQUIREMENTS

To effectively and efficiently integrate GSA buildings at a national level (GSAlink), there is a requirement to have certain data points available over the network from the BAS supervisor/server. These data points or histories should be made available via an open protocol as described below.

The GSA has a standard requirement that states, all high-level network-based control applications like scheduling, overrides, etc. shall exist at the global network controller level within the building. In the event of a network outage, the O&M still retains the ability to directly connect to the controllers and make necessary modifications while the server is unavailable (disaster recovery procedure). Though the control level aspects of the programming shall reside in the global network controllers, the long-term trends will be maintained at the server level and the I/O points shall be mapped to the server for display on the Graphical User Interface (GUI) and made available via an open protocol for national level integrations.

This can be accomplished in many ways and will differ depending on the BAS manufacturer utilized for the project. The goal is to have relevant, national-level historical trend data accessible utilizing a 1:1 connection from the national server (i.e. GSAlink, SkySpark, etc.) to the BAS server. For example:

1. NiagaraAX and Niagara4 (i.e. Vykon, Honeywell, Johnson FX, etc.) based systems shall have the required data points for operations and maintenance imported to the Niagara Supervisor so these points/historical trends can be accessed by national-level systems with a 1:1 connection to the server.

2. All other Building Automation Systems shall conform to a similar practice of providing open source access to point or historical data at the BAS-server level by either enabling the BACnet Server feature of the software application (if available) or exporting historical point data to a GSA-provided SQL Database.

Utilize the table found in “Appendix A - Points Required at the BAS Server Level” to determine and configure the necessary server-level historical trend data. Note: If the entire point or historical database is made available as described above by exporting over BACnet or exporting to an SQL database, there is no need to use the table to select points since all points will be accessible to the national-level system/s.

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SECTION 6 - TAGGING

Discussed within this section and further detailed in Appendix-C, are the requirements for “tagging” BAS objects with the correct metadata when configuring systems for the GSA.

Equipment and point naming was covered previously within this document, but as mentioned, the key to normalizing BAS data and providing the greatest impact is to properly tag objects with “facts” or “attributes” that give the data better meaning, thus providing more ways to analyze, prioritize and act upon the collected data.

The standard tagging model for the GSA will be modeled after Project Haystack. The tagging requirements described in Appendix-C are modeled after the Haystack documentation which can be found here.

Note: If the Building Automation System has the capability to implement tagging, the standards detailed in “Appendix C – National BAS Object Naming & Tagging Standard” shall be used for all new construction and renovation projects within the GSA.

Why Haystack?

As tagging is adopted and implemented by more BAS manufacturers, there is no guarantee that all manufacturers will adopt the Haystack tagging method as their base tagging model. Even so, Haystack has developed a very robust list of available tags along with the ability to create custom libraries and those tags should be available or creatable using any manufacturer tagging process in the future.

For example, the BACnet committee is currently working on a tagging scheme that supports multiple namespaces such as Haystack and any other tagging schemes that may come along in the future. Similarly, ASHRAE is also pursuing a published list of tags for Standard 223 in conjunction with the BACnet committee’s efforts. Both efforts are in the early stages of design but both seek alignment with Haystack wherever possible.

What is Haystack?

Project Haystack is an open source initiative to streamline working with data from the Internet of Things. We standardize semantic data models and web services with the goal of making it easier to unlock value from the vast quantity of data generated by the smart devices that permeate our homes, buildings, factories, and cities. Applications include automation, control, energy, HVAC, lighting, and other environmental systems.

Why Do We Need Tagging?

Macro trends in technology are making it increasingly cost effective to instrument and collect data about the operations and energy usage of buildings. We are now awash in data and the http://project-haystack.org/doc/Intro

GSA Data Normalization for Building Automation Systems_v2.5.docx Page 14 new problem is how to make sense of it. Today most operational data has poor semantic modeling and requires a manual, labor-intensive process to "map" the data before value creation can begin. Pragmatic use of naming conventions and taxonomies can make it more cost effective to analyze, visualize, and derive value from our operational data.

Vendor Specific Haystack/tagging Information

• Niagara AX/N4 (applies to any Niagara-based OEM controller).

o Niagara AX and N4 can easily support Haystack tagging.

o The tag dictionary from the “NHAYSTACK” module shall be used as the primary resource for all tagging. The module can be downloaded here.

o When a tag or relationship type is required that does not currently exist in the

NHAYSTACK library, a new tag dictionary shall be created by the contractor and named using the unique GSA building ID (i.e. NY0282).

• Honeywell EBI o Today, EBI does not have a tagging database to associate tags to objects in the database. This is currently being reviewed for inclusion in future updates of EBI.

• Schneider Electric o Schneider IA Series (AX and N4) adhere to the same Haystack tagging methods described above in the Niagara AX/N4 section.

o SmartStruxure support and standards to be determined.

• Siemens o The current Siemens Insight and Desigo CC versions do not include any standards or guidelines for the usage of Haystack but these standards are currently in development for future releases of the software.

o Siemens does support Haystack tagging through compatibility with the Niagara Framework.

• Alerton o Alerton is currently in the process of adding tagging capability in Compass. Once tagging support is added, Haystack will be supported by the Alerton Standard Applications.

o Alerton dealers will also be allowed to configure custom applications related to tagging.

• Automated Logic o Currently, Automated Logic does not support tagging, but development plans include support for the BACnet Standard tagging scheme with semantic tagging that was recently adopted by the BACnet committee in 2017 (SSPC 135) and referenced above in the “Why Haystack” section.

http://project-haystack.org/download

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SECTION 7 - NCMMS ASSET MATCHING

The National CMMS naming convention is not configured in a fashion that completely aligns with typical BAS naming conventions. The way NCMMS defines an Air Handling Unit (AHU), for example, is not by AHU name (i.e. “AHU-01-LBY”), but rather by AHU “Type” (size in tonnage).

A separate field is utilized to associate the NCMMS Asset with the BAS equipment name.

Appendix C lists and defines all the available Asset options within NCMMS. To properly configure an NCMMS Asset, one would need to know some specific details about the equipment like, but not limited to:

• Equipment name as described in the Building Automation System

• AHU size (Tonnage)

• Chiller type (Absorption, Centrifugal, Screw, etc.)

• Chiller size (Tonnage)

• Boiler type (Gas, Oil, Electric, etc.)

• Boiler size (MBH)

• Use the table in Appendix C to determine the necessary assets for a given project

Among the many parameters within NCMMS that are required for proper asset management, there are two (2) parameters that require proper configuration to ensure asset matching and correct labeling within the system when associating NCMMS records with BAS labels.

• The first is the “Type” record. As discussed above and displayed in Appendix-B, the “Type” field is used to describe the type of equipment and sizing parameters. This field is not used to display the equipment name as shown in the BAS. The user cannot enter any value into this field, but must use the pre-defined values shown in the equipment list.

This list can be viewed by clicking the Search button (magnifying glass) next to the field.

• The second is the “BAS Name” record. This field is utilized for the equipment description as shown in the BAS. For example, a site may have several “AHU-01” Types (because the building has several AHUs sized 3 to 24 tons), but it will only have one “AHU-01- LBY” BAS Name for the associated asset. This field is a large format alpha-numeric data field which means it allows both letters and numbers and will allow plenty of characters for proper description. The BAS equipment description as shown on the graphic pages should be entered in this field. Section 4 and Appendix-C describes the required naming convention and abbreviations for GSA equipment and point names.

A list of available “Type” records and the corresponding equipment description can be found in Appendix B - NCMMS Asset “Type” Option List. NCMMS manages more than just BAS assets, so there are many “Types” that will not be utilized when matching assets to BAS equipment.

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APPENDICES

APPENDIX A - POINTS REQUIRED AT THE BAS SERVER LEVEL

The purpose of the required BAS Server Level Points is not to require additional equipment or sensors, but rather indicate the points that should be considered as value added monitoring points and be included in the Building Control System design. These points should be made accessible to third party systems over Open Protocol data sources (i.e. BACnet, SQL, etc.).

It should be stressed that the purpose of this point list is to influence system design and not to restrict the use or availability of control or monitoring points that exist in a system. As with all big data applications, the more data made available the greater value add to the analyses being performed. This list should be utilized to verify that the largest pool of data is available for fault detection and diagnostics.

The point list table below shows the points currently utilized in the GSAlink rules (highlighted) as well as an additional set of control points that have proven to bring value in fault detection and diagnostics.

# Equipment Description Point Type

Required If

Available Preferred

AHU

1 AHU Cold Deck Supply Temp Physical Yes Yes

2 AHU Cold Deck Fan Status Physical Yes Yes

3 AHU Hot Deck Supply Temp Physical Yes Yes

4 AHU Hot Deck Fan Status Physical Yes Yes

5 Building Air Pressure Physical Yes

6 Building Air Pressure Setpoint Virtual Yes

7 Bypass Damper Status Physical Yes Yes

8 Chilled Water Pump Physical Yes Yes

9 Chiller Plant Mode Virtual Yes Yes

10 Cooling Lockout OA Temp Virtual Yes

11 Cooling Max Airflow Virtual Yes

12 Cooling Min Airflow Virtual Yes

13 Cooling Mode Virtual Yes Yes

14 Cooling Valve Position Physical Yes

15 Cooling Valve Status Physical Yes Yes

16 Dehumidification Mode Virtual Yes Yes

17 Dehumidification Setpoint Virtual Yes

18 Dewpoint Setpoint Virtual Yes

19 Supply Fan Status Physical Yes Yes

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20 Supply Temp Physical Yes Yes

21 Supply Temp Setpoint Virtual Yes Yes

22 Duct Static Pressure Physical Yes

23 Duct Static Pressure Setpoint Virtual Yes

24 Economizer Enabled Command Virtual Yes

25 Economizer Enthalpy Disable Setpoint Virtual Yes

26 Economizer Mode Virtual Yes Yes

27 Economizer Temp Disable Setpoint Virtual Yes

28 Economizer Temp Enable Setpoint Virtual Yes

29 Exhaust Air Damper Position Physical Yes

30 Free Cooling Temp Setpoint Virtual Yes

31 Global OA Temp Physical Yes

32 Heat Exchanger Valves Physical Yes Yes

33 Heating Lockout OA Temp Virtual Yes

34 Heating Max Airflow Virtual Yes

35 Heating Mode Virtual Yes Yes

36 Heating Valve Status Physical Yes Yes

37 Hot Water Pump Command Physical Yes Yes

38 Hot Water Pump Status Virtual Yes Yes

39 Min Outside Air Damper Setpoint Virtual Yes

40 Min Outside Air Ratio Virtual Yes

41 Mixed Air Temp Physical Yes Yes

42 Mixed Air Temp Setpoint Virtual Yes

43 Outside Air Airflow Sensor Physical Yes Yes

44 Outside Air Damper Status Physical Yes Yes

45 Outside Air Airflow Setpoint Virtual Yes Yes

46 Outside Air Temp Physical Yes Yes

47 Occupancy Mode Virtual Yes Yes

48 Outside Air Damper Position/ Feedback Physical Yes

49 Outside Air Enthalpy Virtual Yes

50 Outside Air Damper Position Physical Yes

51 Return Air Damper Position Physical Yes

52 Return Air Fan Status Physical Yes

53 Return Air Temp Physical Yes Yes

54 Static Pressure Sensor Physical Yes Yes

55 Two Positon Outside Air Damper Command Physical Yes

56 Two Position Outside Air Damper Status Physical Yes

57 Zone Air Dewpoint Temp Virtual Yes

58 Zone Air RH Physical Yes

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59 Zone Air Temp Physical Yes

60 Zone Air Temp Setpoint Virtual Yes

61 Zone Damper Position Physical Yes Yes

62 Zone Damper Temp Physical Yes Yes

63 Zone Supply Temp Physical Yes Yes

Chiller 64 Chilled Water Delta-T Virtual Yes

65 Chilled Water Return Temp Physical Yes Yes

66 Chilled Water Supply Temp Physical Yes Yes

67 Chiller Enabled Virtual Yes

68 Chiller Operation Mode Virtual Yes

69 Chiller Status Physical Yes Yes

70 Chilled Water Diff Press Setpoint Virtual Yes Yes

71 Chilled Water Differential Pressure Physical Yes Yes

72 Chilled Water Pump Status Physical Yes Yes

73 Chilled Water Supply Setpoint Virtual Yes Yes

74 Compressor Refrigerant Supply Pressure Physical Yes

75 Compressor Refrigerant Supply Temp Physical Yes

76 Compressor Run Load Physical Yes

77 Compressor Start Virtual Yes

78 Compressor Voltage Physical Yes

79 Condenser Pump Command Virtual Yes

80 Condenser Refrigerant Pressure Physical Yes

81 Condenser Refrigerant Temp Physical Yes

82 Condenser Water Approach Temp Physical Yes

83 Condenser Water Delta-T Virtual Yes

84 Condenser Water Return Temp Physical Yes

85 Condenser Water Supply Temp Physical Yes

86 Cooling Mode Virtual Yes Yes

87 Current Draw Physical Yes

88 Evaporator Approach Temp Virtual Yes

89 Evaporator Refrigerant Pressure Physical Yes

90 Evaporator Refrigerant Temp Physical Yes

91 Evaporator Water Return Temp Physical Yes

92 Evaporator Water Supply Temp Physical Yes

93 Expansion Valve Position Physical Yes

94 Heat Sink Temp Physical Yes

95 Lagging Chiller Enabled Virtual Yes

96 Lagging Chiller Enabled Setpoint Virtual Yes

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97 Lead Chiller Enabled Virtual Yes

98 Lead Chiller Enabled Setpoint Virtual Yes

99 Lead Chiller Selection Virtual Yes

100 Occupancy Mode Virtual Yes Yes

101 Primary Pump Command Physical Yes

102 Secondary Pump Command Physical Yes

Cooling Tower 103 System Bypass Valve Physical Yes

104 Condenser Water Supply Temp Setpoint Virtual Yes

105 Condenser Water Return Temp Setpoint Virtual Yes

106 Condenser Water Supply Diff Press Setpoint Virtual Yes

107 Condenser Water Return Diff Press Setpoint Virtual Yes

108 Chiller Plant Enabled Virtual Yes

109 Condenser Pump Command Physical Yes

110 Condenser Pump Status Physical Yes Yes

111 Cooling Tower Fan Enabled Virtual Yes

112 Cooling Tower Fan Feedback Physical Yes

113 Cooling Tower Return Temp Physical Yes Yes

114 Cooling Tower Sump Temp Physical Yes

115 Cooling Tower Supply Setpoint Virtual Yes Yes

116 Cooling Tower Supply Temp Physical Yes Yes

117 Cooling Tower Water Level Physical Yes

118 Induction Loop Return Temp Physical Yes

119 Induction Loop Supply Temp Physical Yes

Terminal Units 120 Average Space Temp Virtual Yes

121 Chilled Water Temp Physical Yes

122 Circulating Fan Command Physical Yes

123 Cooling Lockout Outside Air Temp Virtual Yes

124 Cooling Max Airflow Virtual Yes

125 Cooling Min Airflow Virtual Yes

126 Cooling Mode Virtual Yes Yes

127 Cooling Temp Setpoint Virtual Yes Yes

128 Cooling Valve Position Physical Yes

129 Dewpoint Setpoint Virtual Yes

130 Supply Fan Status Physical Yes Yes

131 Fan Coil Enabled Virtual Yes

132 Fan Speed Physical Yes

133 Heating Lockout OA Temp Virtual Yes

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134 Heating Max Airflow Virtual Yes

135 Heating Mode Virtual Yes Yes

136 Heating Stage Command(s) Virtual Yes

137 Heating Temp Setpoint Virtual Yes Yes

138 Electric Heating Coil Command Physical Yes

139 Hot Water Valve Position Physical Yes

140 Minimum Air Temp Virtual Yes

141 Occupancy Mode Virtual Yes Yes

142 Return Air Temp Physical Yes

143 Room Temp Physical Yes

144 Room Temp Setpoint Virtual Yes

145 Supply Air Damper Position Physical Yes

146 Supply Airflow Limit Virtual Yes

147 Supply Air Temp Physical Yes

148 Supply Airflow Physical Yes

149 Supply Airflow Setpoint Virtual Yes

150 Ventilation Demand Virtual Yes

151 Zone Occupancy Status Virtual Yes

152 Zone Temp Physical Yes Yes

153 Zone Temp Setpoint Virtual Yes Yes

Boilers / Heat Exchangers 154 Boiler Supply Temp Physical Yes Yes

155 Boiler Runtime Virtual Yes

156 Boiler Start/Stop Command Virtual Yes

157 Boiler Status Physical Yes Yes

158 Boiler Entering Temperature Physical Yes

159 Boiler Valve Command Physical Yes

160 Boiler Valve Status Physical Yes

161 HW Diff Press Setpoint Virtual Yes Yes

162 HW Pressure Differential Physical Yes Yes

163 HW Pump Status Physical Yes Yes

164 HX Return Temp Physical Yes

165 HX Supply Temp Physical Yes Yes

166 HX Mode Virtual Yes Yes

167 HX Pump Status Physical Yes Yes

168 HX Temp Setpoint Virtual Yes Yes

169 HX Valve Status Physical Yes Yes

170 Pump Override Virtual Yes

171 Pump Failure Virtual Yes

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172 Pump Runtime Virtual Yes

173 Pump Start/Stop Command Physical Yes

174 Secondary Hot Water Return Temp Physical Yes

175 Secondary Hot Water Supply Temp Physical Yes

176 Secondary HW Pump Physical Yes Yes

177 Zone Occupancy Status Virtual Yes

Roof Top Units 178 Cooling Lockout Outside Air Temp Virtual Yes

179 Cooling Max Airflow Virtual Yes

180 Cooling Min Airflow Virtual Yes

181 Cooling Temp Setpoint Virtual Yes

182 Cooling Stage Command Virtual Yes

183 Dewpoint Setpoint Virtual Yes

184 Economizer Mode Enabled Virtual Yes

185 Economizer Enthalpy Disable Setpoint Virtual Yes

186 Economizer Temp Disable Setpoint Virtual Yes

187 Economizer Temp Enable Setpoint Virtual Yes

188 Energy Wheel Leaving Air Temp Physical Yes

189 Exhaust Fan Command Virtual Yes

190 Free Cooling Temp Setpoint Virtual Yes

191 Heating Lockout OA Temp Virtual Yes

192 Heating Max Airflow Virtual Yes

193 Heating Setpoint Virtual Yes

194 Heating Stage Command(s) Virtual Yes

195 Min Outside Air Damper Setpoint Virtual Yes

196 Min Outside Air Ratio Virtual Yes

197 Modulating Outside Air Damper Physical Yes

198 Outside Air Dewpoint Virtual Yes

199 Outside Air Enthalpy Virtual Yes

200 Outside Air Relative Humidity Physical Yes

201 Outside Air Temp Physical Yes

202 Return Air Temp Physical Yes

203 Supply Air Fan Command Virtual Yes

204 Supply Air Temp Physical Yes

205 Two Position Outside Air Damper Physical Yes

206 Unit Humidification Setpoint Virtual Yes

207 Unit Dehumidification Setpoint Virtual Yes

208 Zone Air Dewpoint Temp Virtual Yes

209 Zone Air Relative Humidity Physical Yes

GSA Data Normalization for Building Automation Systems_v2.5.docx Page 22

210 Zone Air Temp Physical Yes

CRAC Units 211 Cooling Coil Valve Position Physical Yes

212 Cooling Lockout OA Temp Virtual Yes

213 Cooling Max Airflow Virtual Yes

214 Cooling Min Airflow Virtual Yes

215 Dewpoint Setpoint Virtual Yes

216 Heating Lockout OA Temp Virtual Yes

217 Heating Stage Command(s) Virtual Yes

218 Humidification Enabled Virtual Yes

219 Minimum Outside Air Ratio Virtual Yes

220 Relative Humidity Setpoint Virtual Yes

221 Return Air Humidity Physical Yes

222 Return Air Temp Physical Yes

223 Return Air Temp Setpoint Virtual Yes

224 Supply Air Fan Command Virtual Yes

225 Supply Air Temp Physical Yes

226 Unit Cooling Status Virtual Yes

227 Unit Dehumidification Mode Virtual Yes

228 Unit Heating Status Virtual Yes

229 Unit Humidification Mode Virtual Yes

230 Unit Status Virtual Yes

Energy Meters 231 Energy Meter Reading Physical Yes Yes

232 Peak Energy Demand Physical Yes Yes

233 Occupancy Mode Virtual Yes

GSA Data Normalization for Building Automation Systems_v2.5.docx Page 23

APPENDIX B - NCMMS ASSET “TYPE” OPTION LIST

# Value Description 1 ABL Air Blower 2 ACC Condenser, Air-Cooled 3 ACR-01 Computer Room Air-Conditioning Unit, Package: or Special Systems 4 ACR-02 Heat Pumps, Water Cooled (WSHP) 5 ACR-03 Air Conditioning Unit or Heat Pump Split System, 6 ACR-04 Air Conditioning Unit, Ceiling/Wall/Window Mounted 7 ACR-05 Air-Cooled Condenser 8 ACR-06 Evaporative Condenser 9 ACT Air Curtain

10 ACU Air Conditioner Package 11 ACW Air Conditioner, Window 12 ADO Audio System 13 ADR Air Dryer 14 AER Aerator 15 AGS-01 Tanks, Air, Refrigerant, LP Gas 16 AHU-01 Air Handling Unit, 3 ton thru 24 ton 17 AHU-02 Air Handling Unit, 25 ton thru 50 ton 18 AHU-03 Air Handling Unit, over 50 ton 19 AHU-04 Air Handling Unit, Computer Room 20 AHU-05 Packaged Air Handler, Predictive Maintenance 21 AHU-06 Air Washer or Wet Coil System 22 AHU-07 Application 23 AHU-08 AHU UV Treatment System 24 AIR-01 Air Dryer, Refrigerated or Regenerative Desiccant Type 25 AIR-02 Air Compressor 26 AIR-03 Glycol Dry Cooler, Special Purpose 27 AIR-04 After-Cooler/Separator 28 ALM Fire Detection and Alarm System 29 ALM-01 Alarm Check Valves and Accessories 30 ALM-02 Fire Supervisory Signals - Testing 31 ALM-03 Automatic Fire Detection Smoke Detectors 32 ALM-04 Automatic Fire Detection Waterflow Alarms 33 ALM-05 Automatic Fire Detection, Heat Detectors 34 ALM-06 Smoke Control Systems -Operational Testing 35 ALM-07 Fire Alarm Control Panel and Remote Annunciators 36 ALM-08 Fire Alarm Control Panel -Special Systems 37 ALM-09 Central Station Transmitter 38 ALM-10 Central Station - Receiver and Re-Transmission Equipment 39 ALM-11 Fire Alarm System - Recorder 40 ALM-12 Fire Alarm System - Event Printer 41 ALM-13 Fire Alarm System -Audio Control Panel 42 ALM-14 Fire Alarm System -Remote Controller 43 ALM-15 Fire Alarm System -Remote Amplifiers 44 ALM-16 Manual Fire Alarm Stations -Coded and Uncoded 45 ALM-17 Fire Life Safety Fire Alarm 46 APL Appliance - Washer Dryer Etc 47 ART Artwork Sculptures Etc 48 ASP Air Separator 49 AST Fuel Storage Tank, Above Ground 50 ATP Automatic Trap Primer 51 ATS Switch, Automatic Transfer 52 ATS-01 Automatic Transfer Switches

GSA Data Normalization for Building Automation Systems_v2.5.docx Page 24

53 AWS Air Washer 54 BAR-01 Security Bollards, Barricade 55 BAS-01 Building Automation System, DDC 56 BAS-02 Building Automation System, Pneumatic 57 BAS-03 Building Automation System, Terminal End Devices 58 BAT Battery 59 BDT-01 Metal Enclosed Busways (Busduct) 60 BFP Backflow Prevention Device 61 BLR-01 Boiler 62 BLR-02 Boiler, Application 63 BLR-03 Boiler, Burner, Gas 64 BLR-04 Boiler, Burner, Oil 65 BLR-05 Boiler, Instrument Controls 66 BLR-E Boiler, Electric 67 BLR-HW1 Boiler, Hot Water, Oil/Gas/Comb, up to 120 MBH 68 BLR-HW2 Boiler, Hot Water, Oil/Gas/Comb, 120 to 500 MBH 69 BLR-HW3 Boiler, Hot Water, Oil/Gas/Comb, 500 to 1000 MBH 70 BLR-HW4 Boiler, Hot Water, Oil/Gas/Comb, over 1000 MBH 71 BLR-MOD1 Modular Boiler, 42 MBH 72 BLR-MOD2 Modular Boiler, 57 MBH 73 BLR-MOD3 Modular Boiler, 85 MBH 74 BLR-MOD4 Modular Boiler, 112 MBH 75 BLR-MOD5 Modular Boiler, 140 MBH 76 BLR-MOD6 Modular Boiler, 167 MBH 77 BLR-MOD7 Modular Boiler, 194 MBH 78 BLR-ST1 Boiler, Steam, Oil/Gas/Comb, up to 120 MBH 79 BLR-ST2 Boiler, Steam, Natural Gas or Oil/Gas/Comb 80 BLR-ST3 Boiler, Steam, Oil/Gas/Comb, 500 to 1000 MBH 81 BLR-ST4 Boiler, Steam, Oil/Gas/Comb, over 1000 MBH 82 BNG Burner, Gas Oil 83 BSB Heater, Baseboard 84 BSB-01 Radiant Baseboards, Convectors (Steam, Hot Water, or Electric, per section) 85 BSD Electric Buss Duct 86 BTC Battery Charger 87 BUF Floor Buffer 88 BWS Bird Wire System 89 CAO Can Opener 90 CAP-01 Capacitors 91 CAP-02 Reactors-Dry-Type, Thermographic Survey 92 CAP-03 Reactors, Liquid-Filled, Oil Leakage 93 CBL-01 Cables, Low Voltage 600 Volt Maximum, Thermographic Survey 94 CBL-02 Cables, Medium Voltage 95 CBS-01 Active Chilled Beam 96 CBS-02 Passive Chilled Beam 97 CDE Clothes Dryer, Electric 98 CHF Chemical Feeder 99 CHL-A1 Chiller, Absorption unit, up to 500 tons

100 CHL-A2 Chiller, Absorption unit, 500 to 5000 tons 101 CHL-CW1 Chiller, Centrifugal, water cooled, up to 100 tons 102 CHL-CW2 Chiller, Centrifugal, water cooled, over 100 tons 103 CHL-MB1 Magnetic Bearing Chiller, Less 500 Tons 104 CHL-MB2 Magnetic Bearing Chiller, 500-1000 Tons 105 CHL-MB3 Magnetic Bearing Chiller, over 1000 Tons 106 CHL-MOD1 Modular Chiller, 20-Ton 107 CHL-MOD2 Modular Chiller, 25-Ton 108 CHL-MOD3 Modular Chiller, 30-Ton

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109 CHL-MOD4 Modular Chiller, 35-Ton 110 CHL-MOD5 Modular Chiller, 40-Ton 111 CHL-MOD6 Modular Chiller, 45-Ton 112 CHL-MOD7 Modular Chiller, 50-Ton 113 CHL-RA1 Chiller, Recip, Air Cooled, up to 25 tons 114 CHL-RA2 Chiller, Recip, Air Cooled, over 25 tons 115 CHL-S1 Chiller, Screw, Water Cooled 116 CHL-S2 Chiller, Screw, Water Cooled 117 CHL-W1 Chiller, Recip, Water Cooled, up to 50 tons 118 CHL-W2 Chiller, Recip, Water Cooled, over 50 tons 119 CHM-01 Chemical Storage Tanks 120 CKB-01 Circuit Breakers, Air, Insulated-Case, Molded-Case 121 CKB-02 Circuit Breakers, Air, Low-Voltage Power 122 CKB-03 Circuit Breakers, Air, Medium Voltage 123 CKB-04 Circuit Breakers, Oil, Medium-Voltage 124 CKB-05 Circuit Breakers, Vacuum, Medium-Voltage 125 CLK Clocks 126 CLK-01 Clocks, Central System 127 CLR-01 Central Chilled Water Package Unit:

128 CLR-02 Rotary Screw & Scroll Chiller 129 CLR-03 Centrifugal Chiller 130 CLR-04 Refrigeration Machine, Absorption Unit 131 CLR-05 Chiller Control Panel 132 CLR-06 Refrigerant Monitor 133 CLR-07 Refrigerant Purge Units 134 CLR-08 Vibration Analysis, Chillers 135 CLR-09 Non-Destructive Tube Analysis (Eddy Current Analysis) 136 CLS-01 Coils Cooling, Heating, Preheat, Reheat, Etc.

137 CMD Carbon-Monoxide Detection Sensors 138 CMI Carbon Dioxide (CO2) Concentration Measuring Instrument 139 CMP Air Compressor 140 CMP-R Air Compressor, Recip 141 CND-01 Condensing Unit, Refrigeration 142 COF Coffee Maker/Urn 143 COL Coil, Heating/Cooling 144 CON Control Panel 145 CPZ Cathodic Protection Zinc 146 CRAC Computer Room A.C.1 (CRAC Unit) 147 CRN-01 Crane, Electric 148 CTR Cooling Tower 149 CUT Cutter, Food 150 CVC Video Control System 151 CWD Clothes Washer, Domestic 152 DAV Davits/Roof Anchors/Fall Protection 153 DAV-01 Davits 154 DCS-01 DC Battery System, Lead Acid 155 DCS-02 Primary Battery (Dry Cell) 156 DCS-03 Nickel Cadmium Battery 157 DCS-04 DC Battery System, Chargers 158 DCT Switch, Disconnect 159 DDC-01 BAS Server 160 DDC-02 BAS Server Client Workstation 161 DDC-03 Network, Management Level 162 DDC-04 Network, Building Level 163 DDC-05 Field Panel 164 DDC-06 Controller

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165 DDC-07 Sensors, Electronic 166 DDC-08 Alarm Maintenance 167 DDC-09 BAS Wireless Electronic, Pneumatic end devices (Thermostats) 168 DEA Deaerator Tank 169 DES Deaerating System 170 DET Detector, Leak 171 DFB Defibrillator 172 DFF Fryer, Pressurized Broaster, Gas/Electric 173 DFS Diffuser-Linear and Lay in 174 DKL Dock Leveler 175 DMP-01 Motorized Dampers, Pneumatic or Electric 176 DMW-01 Dumbwaiter 177 DOR Exterior Doors 178 DOR-01 Door, Power Operated 179 DOR-02 Door; Hydraulic, Electric or Pneumatic Operated 180 DOR-03 Door, Manual, Overhead 181 DOR-04 Door, Manually Operated Entrance 182 DOZ-1 Bulldozer, Standard Track 183 DOZ-2 Bulldozer, Articulated Track 184 DPP Damper, Powered 185 DPS Differential Pressure Switch 186 DRD Drink Dispenser 187 DRN Drain 188 DRN-01 Roof Drains, Downspout, and Gutter Inspection 189 DRN-02 Drains: Areaway, Driveway, Storm 190 DSE Duplex Sewage Ejector 191 DSH-01 Dishwashing Machine 192 DSH-1 Dishwasher - Elect 193 DSH-2 Dishwasher - Steam 194 DSH-3 Dish/Tray Busing Conveyor 195 DSK Digital Signage/Kiosk Hardware 196 DTT Transformer, Dry 197 DWS-01 Domestic Hot Water Heater - Gas 198 DWS-02 Domestic Hot Water Heater - Electric 199 DWS-03 Hot Water Heater Steam Coil 200 DWS-04 Water Softener 201 DWS-05 Water Filter 202 DWV-01 Sewage Ejector (Pneumatic Tank Type Ejectors) 203 DWV-02 Sewage Ejector, Sump Type 204 DWV-03 Sump Pump 205 DWV-04 Emergency Wash 206 DWV-05 Emergency Shower 207 DWV-06 Septic Tank and Drain Field 208 EFP Flagpole, Electric 209 EHC Exhaust Hood, Commercial Kitchen 210 EHF Exhaust Hood, Fume 211 ELT Emergency Lighting 212 ELV-01 Elevators, Hydraulic 213 ELV-02 Elevators, Electric 214 ELV-03 Elevators, Electric or Hydraulic 215 ELV-1 Hydraulic Elevator 216 ELV-2 Electric Traction Elevator 217 EMG-01 Emergency Diesel Generator 218 EMG-02 Emergency Natural Gas Generator 219 EMS Energy Management System 220 END-01 End Devices

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221 EPB Panelboard, Power Distribution 222 EPR-01 Emergency Generators, Gasoline, or Natural Gas Engines 223 EPR-02 Electric Emergency Generators, Diesel Engine Powered 224 EPR-03 Emergency Generators 225 EPR-04 Emergency Pumps and Ventilators 226 EPR-05 Fuel Oil Filter/Strainer 227 EPR-06 Fuel Oil Heater 228 EPR-07 Emergency Generator Steam Turbine Driven 229 EPR-08 Load Bank Testing 230 EQP-01 Child Care Equipment 231 ESC Escalator 232 ESC-01 Escalator 233 EVP Evaporative Cooler 234 EVP-01 Indirect Evaporative Cooling System 235 EVP-02 Direct Evaporative Cooling System 236 EVP-03 Humidification Systems 237 EWC Drinking Fountain, Packaged 238 EXJ Expansion Joint 239 EXM-1 Exercise Machine, Treadmill 240 EXM-2 Exercise Machine, Elliptical 241 EXS Exit Signs 242 EXT Expansion Tank 243 EYE Eyewash/Shower Unit 244 FACILITIES Facilities Assets 245 FAF Furnace, Forced Air, Natural Gas 246 FAN-01 Fan, Axial 247 FAN-02 Fan, Centrifugal 248 FAN-03 Fan, Make-up 249 FAN-04 Fan, Utility Set 250 FCP Food Cart, Process 251 FCU Fan Coil Unit 252 FCU-01 Fan Coil Unit 253 FDR-01 Fire Door - Swinging 254 FDR-02 Fire Door - Sliding & Rolling 255 FEX Fire Extinguishers 256 FEX-01 Fire Extinguishers - Inspection 257 FEX-02 Fire Extinguishers, Stored Pressure with Gauge 258 FEX-03 Fire Extinguishers - Non-rechargeable 259 FEX-04 Fire Extinguishers, Gas Cartridge or Cylinder (No Gauge) 260 FEX-05 Water Spray Extinguishing Systems 261 FEX-06 Fire Extinguishing Systems -

262 FHC Cabinet, Fire Hose 263 FKT Forklift Truck 264 FLEET Fleet Assets 265 FLF Filter, Fuel/Oil 266 FLT Filter, Air 267 FLT-01 Filters, Throw Away 268 FLT-02 Filters, Roll, Disposable 269 FLT-03 Filters, Electrostatic 270 FLT-04 Filters, Viscous Type (Wire Mesh) 271 FLT-05 Filters, Charcoal 272 FLT-06 Filters, Special situations or conditions.

273 FLT-1 Filter, OR 274 FLT-2 Filter, Sand 275 FLT-3 Filter, Water 276 FMT Flow Meter

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277 FNG Fences and Gates 278 FOL-01 Tanks, Fuel Oil Storage 279 FPL Fireplace 280 FPL-01 Fireplace 281 FPL-02 Incinerator 282 FPM-01 Fire Pump, Electric-Drive 283 FPM-02 Fire Pump, Diesel 284 FRG Refrigerator unit/display case w/external condenser 285 FRY-01 Fryer 286 FRZ Refrigerator/Freezer, walk-in box w/external condenser 287 FSD Fire and Smoke Dampers 288 FSD-01 Fire and Smoke Dampers 289 FSP-01 Wet-Pipe Sprinkler Systems 290 FSP-02 Dry-Pipe Sprinkler Systems 291 FSP-03 Preaction Sprinkler Systems 292 FSP-04 Clean-Agent Fire-Extinguishing Systems 293 FUR Furniture 294 GAG Gauge 295 GBG Garbage Disposal 296 GDS Fuel-Gas Detection Sensors 297 GET Grounds Equipment, Lawn Tractor, Carts 298 GFS Glycol Feed System 299 GND Bench Grinder 300 GRD-01 Grounding Systems 301 GRL Grill 302 GRL-01 Grill 303 GRR Gear Reduction Unit 304 GTP Grease Trap 305 GTY Gateway (generic) 306 GWS-01 Geothermal Well System, Vertical 307 GWS-02 Geothermal Well System, Horizontal 308 HCU Heating/Cooling Unit 309 HDY Hand/Hair Dryer 310 HPT Pallet Truck, Hand 311 HPU High Efficiency Purge Unit 312 HSE Fire Hose / Hose Connections 313 HSE-01 Fire Hose, 1.5 inch.