Synopsis-17-B-0043-Revised.pdf

Performance Work Statement (PWS) Retro-Commissioning and DDC Upgrades

Fort Hood, Texas

April 28, 2017

1.1 Synopsis: The Contractor shall perform a comprehensive Retro-Commissioning (RCx) of Direct Digital Controls (DDC) and Heating Ventilation and Air Conditioning (HVAC) equipment in 25 facilities (approximately 419,724 square feet) at Fort Hood, Texas. This Contract shall be executed in a two phased approach. The following list summarizes the Planning, Investigation, and Implementation Phase activities of the RCx process. Some projects for the implementation phase have been identified by the government. Planning and Investigation activities are completed in Phase 1.

Implementation activities are completed in Phase 2. See Attachment 2 for the building list.

1.2 Phase One (Planning and Investigation)

1.2.1 Planning Phase Activities:

a. Conduct Project Kickoff Meeting

b. Perform Documentation Review

c. Interview Energy, Building, and O&M Management

d. Conduct Planning Phase Site Walk

e. Perform Utility Analysis and Benchmarking

f. Prepare Preliminary List of Energy Conservation Measures

g. Develop Retro-Commissioning Plan (Deliverable)

h. Conduct Planning Phase Scoping Meeting and Issue After Action Report (Deliverable)

1.2.2 Investigation Phase Activities:

a. Conduct Investigation Phase Kickoff Meeting

b. Perform Detailed Site Assessment

c. Execute Monitoring Plan

d. Execute Functional Testing Plan

e. Analyze Value of TAB for Specific Buildings

f. Analyze Value of Envelope Testing for Specific Building.

g. Analyze Investigation Phase Monitoring and Testing Data

h. Develop Project Issues Log

i. Finalize and Submit the List of Recommended Energy Conservation Measures and Repairs

j. Conduct ECM and Repair Selection Meeting

k. Prepare Energy Savings Estimates and Economic Evaluation for Selected ECMs

l. Prepare EOPC (Engineer’s Opinion of Probable Cost) Documentation for Selected Repairs

m. Prepare Implementation Descriptions for Selected ECMs and Repairs

n. Prepare and Submit RCx Investigation Report (Deliverable)

o. Conduct Investigation Phase Scoping Meeting and Issue After Action Report (Deliverable)

1.2 Phase Two (Implementation)

1.2.1 Implementation Phase Activities:

a. Submit TDP-1 for Implementation of ECM and Repair Projects (Deliverable)

b. Conduct TDP-1 Scoping Meeting and Issue After Action Report (Deliverable)

c. Submit Implementation Phase Project Schedule (Deliverable)

d. Conduct Implementation Kick off Meeting

e. Implement Selected ECMs and Repairs

f. Create and Execute Verification Plan

g. Update Savings and Prepare Implementation Report (Deliverable)

h. Conduct Post-Implementation Scoping Meeting and Issue After Action Report (Deliverable)

i. Prepare Operations and Maintenance Documentation for Implemented Repairs and ECMs (Deliverable)

j. Develop and Execute Training for Implemented Repairs and ECMs (Deliverable)

k. Prepare and Submit Final RCx Report (Deliverable)

1.2.2. The process to implement the approved EMCs in Phase Two shall follow a structure similar to Corrective Maintenance (CM).

1.2.3 Implement Government Identified Projects (See Attachment 4)

1.3 Contractor will utilize ASHRAE Guideline 0.2:2015 as a framework for survey, analysis, technical requirements and implementation of the Retro-Commissioning for the subject facilities. Survey and test the identified facilities and their associated systems to validate the operational effectiveness of any equipment to be reused. Document the findings. The equipment and systems must meet the current requirements to achieve the goals to improve comfort and environmental quality, and to optimize energy and resource conservation.

1.4 The Retro-Commissioning tasks must culminate in a fully functional and complete working system in compliance with activity specific requirements itemized in the PWS. The Government has reviewed the requirements contained within this PWS and has determined the work to be predominately services.

2.1 Specific Work to Be Accomplished: In conjunction with the requirements of the basic contract the Contractor shall provide the services and upgrades in accordance with the referenced criteria, specifications, drawings, and equipment list attached. As applicable to specific tasks, the Contractor shall:

2.2 Participate in a post-award orientation meeting at the site prior to commencing work. Provide a Quality Control Plan, a Project Schedule and an Accident Prevention Plan following the submittal procedures of the basic contract and the submittal schedule, reference Technical Exhibit A, Specifications.

2.3 Perform the retro-commissioning survey and analysis as detailed in Attachment 4 to determine condition of system equipment and associated controls. The survey shall include testing of existing equipment, actuators, dampers, valves and local control loops to determine the list of recommended repair/replacement and commissioning activities. Contractor shall identify and document all inoperable/damaged equipment that must function properly for a complete and useable system. Provide a written report noting all identified discrepancies that includes a cost estimate for repair/replacement.

2.4 Perform engineering surveys or assessments to develop or verify design drawings and equipment lists. Provide a report identifying equipment incompatibility concerns between the existing and new systems.

2.5 Prepare and provide Mechanical and Electrical Equipment installation engineering plans.

2.6 Prepare and provide Electronic Equipment installation and assembly engineering drawings as related to computers, field equipment panels, data transmission equipment, interfaces, and instrumentation and all other equipment.

2.7 Prepare and provide system installation engineering drawings, instrumentation installation drawings, wiring diagrams, procedures for field installation of all equipment, and system testing procedures, as defined in UFC 3-470-01, UFC 3- 410-02, and Technical Exhibit A, Specifications.

2.8 Provide Mechanical and Electrical Equipment. Install equipment in accordance with (IAW) original manufacturer’s published procedures and documentation and as required by the specifications.

2.9 Perform all factory testing, performance verification testing, and commissioning IAW the applicable and referenced sections of criteria and specifications in this task order.

2.10 Perform minor ancillary work required to support equipment installation.

2.11 Provide all data transmission equipment IAW specifications, drawings and manufacturer’s published documentation.

Install in compliance with applicable certification and accreditation requirements of the DoD, DA, other applicable Agencies, and the Network Enterprise Center (NEC), or its equivalent authority, and provide requisite documentation as defined in Attachment 6.

2.12 Interface to all existing data transmission equipment IAW specifications, drawings and manufacturers’ published documentation. Comply with all requirements of the NEC related to interfacing with the existing communication system.

Provide technical data, equipment and software in compliance with Cybersecurity policy and requirements.

2.13 Integrate building level systems into the enterprise server/workstation and graphical user interface utilizing an Open Systems approach. Provide documentation on the tools, databases, data types, and interfaces used. No proprietary interfaces, tools, or architectures without prior approval.

2.14 Provide all required Operations and Maintenance Manuals.

2.15 Provide Training as required by the applicable sections of the specifications and this work statement.

2.16 Provide a System Warranty. The systems, all ancillary components, mechanical equipment, electrical equipment, subsystems, data transmission systems, and all Contractor-furnished software shall be covered by warranty. The Contractor shall warrant all products and services provided under this task order (material and labor) for a period of one year from the date of Government acceptance or the offeror's standard commercial warranty period, whichever is greater.

Upon any product/service failure during the warranty period, Contractor’s response time to restore system service shall be within the timeframes indicated herein. “Mission Critical Outages” will require a maximum of 4-hour response time during normal working hours and maximum of 16-hour response time for after hours (defined as outside 0700-1600) and one day to restore system operation. All other outages will require a maximum of three working days response time and seven working days to restore system operation. System outages assessed as “Mission Critical” will be at the discretion of the Contracting Officer or Contracting Officer’s Representative. The warranty period shall not start until the contractor successfully passes the PVT, all punch list items are resolved, and the contractor receives a letter of acceptance from the Contracting Officer (See Attachment 7 for the PVT process flow diagram).

2.17 Provide after-action reports, accident reports, minutes of each meeting, confirmation notices of communications, field inspection reports, calibration reports and installation progress reports. Copies shall be furnished to the Government within 5 working days or sooner, if required, after each specific action.

2.18 Provide final As-Built Drawings. All drawings shall be generated in electronic media compatible with the latest version of Microstation, AutoCAD, or as defined in this task order. Title block information on drawings shall be coordinated and approved by the Government. The prime Contractor’s logo and company information will be displayed as the responsible party. Drawings must be delivered within 30 days after the written acceptance of the system by the Government.

2.19 Provide software licensing; installation tools; interface tools; commissioning tools; and configuration tools related to UMCS, ESS, SCADA and other Control and Monitoring Systems and HVAC systems as required by this task order. All technical data in which the Contractor has granted the Government additional rights must be listed or described in a license agreement made part of the contract. The license shall enumerate the additional rights granted the Government in such data.

2.20 Perform special Engineering Services and Studies: Provide special engineering services as defined in Attachment 4.

2.21 Perform System Maintenance. The contractor shall perform all preventive and corrective maintenance to the system being installed until Government system acceptance.

3.1 Specifications:

3.2 All requirements of Contract Clauses, Special Clauses, and the technical provisions as included in Technical Exhibit A, Specifications are applicable to this task order.

4.0 Drawings and Equipment Lists: A list of drawings and equipment furnished for this task order is identified in Attachment 2.

5.0 Information Support and Documentation: All required technical data and computer software shall be delivered IAW the requirements set forth in the Contract Data Requirements List (CDRL) as referenced in Attachment 3 and as required in the basic contract. Details of format and specific quantities for deliverables and addresses of the points of contacts are stated in Paragraphs 13 and 14.

12. Provision of Technical Data Packages:

Technical Data Packages shall be provided per the project schedule and delivered to the point of contact denoted by the asterisk in Paragraph 14. Data will be delivered as follows:

Group I Technical Data Package, (Design and Equipment Cut Sheets):

Recipient Qty Submittal Format Media

Energy Manager, DPW, Fort Hood

2 11 x 17 (B-Size) Drawings Hardcopy 2 24 x 36 (D-Size) Drawings Hardcopy 2 Entire Package (Adobe PDF, or other format specified in Attachment 4 CD/DVD

Group II Technical Data Package, (Site Conditions and Survey Report)

DPW, Fort Hood

2 Bound 8.5 x 11 Hardcopy

1 Entire Package (Adobe PDF, or other format specified in Attachment 4 CD/DVD

Group III Technical Data Package not required.

Group IV Technical Data Package, (Performance Verification Testing Procedures, Draft O&M Manuals, Training Documentation, and Final Instrumentation and Control Drawings):

DPW, Fort Hood

2 11 x 17 (B-Size) Drawings Hardcopy 2 Entire Package (Adobe PDF, or other format specified in Attachment 4 CD/DVD 2 PVT Procedures (3 Ring Binders 8.5 X 11) Hardcopy

Group V Technical Data Package, (O&M Manuals):

DPW, Fort Hood

3 3 Ring Binder 8.5 X 11 Hardcopy

3 Entire Package (Adobe PDF, or other format specified in Attachment 4 CD/DVD

Group VI Technical Data Package, (As-Built Drawings):

DPW, Fort Hood

2 11 x 17 (B-Size) Drawings Hardcopy 2 24 x 36 (D-Size) Drawings Hardcopy 2 Electronic (CAD)

CD/DVD

2 Entire Package (Adobe PDF, or other format specified in Attachment 4

1 ea per Mech-room

Building/System Specific Drawings – place in mechanical rooms

Laminate

Cybersecurity Requirements: Not

Applicable Submittal Summary:

Submittals

Form

Required

Hard-copy

CD/DVD

E-mail

PM P

E

Customer

Group I Technical Data Package (Phase 2) Yes √ √ Group II Technical Data Package Yes √ √ Retro-Commissioning Plan (Phase 1) Yes √ √ Group IV Technical Data Package Yes √ √ Group V Technical Data Package Yes √ √ Implementation Report (Phase 2) Yes √ √ PVT Results with Warranty Letter Yes √ √ √ RCx Investigation Report (Phase 1) Yes √ √ √ √ Final RCx Report Yes √ √ √ √

Technical Data Package (TDP) Requirements: Contractor shall submit all Technical Data Packages as single, complete packages which include the entire collection of data elements as dictated by the task, the technical solution, and the requirements listed below. Exceptions for multiple submittals may be allowed in Group I TDP for circumstances that may adversely affect a critical path schedule, e.g. long-lead ordering items or a compelling need for urgency.

A. Group I Technical Data Package: As a minimum the Contractor shall submit: A1. System Design

1) Computer Equipment Cut Sheets with indication of selection

2) Network Architecture Diagram

3) UMCS Block Diagram

4) Communication network and Cybersecurity description

5) Control Drawings and schematic of equipment showing instrumentation placement

6) Floor Plans showing relative locations of HVAC equipment and new DDC controls

7) Sequences of Operations for each piece of HVAC equipment

8) Bills-of-Materials (BOM) for each sub-system

9) Mechanical Equipment (AHU’s, Pumps, Coil Pumps, Sensors, Valves, etc.)

10) Electrical Equipment (disconnects, circuit breakers, motors, transformers, etc.)

11) Details of power (include source breaker nomenclature), grounding and surge protection

12) Building Level Controller / Facility Point of Connection device (e.g., Network Application Engines, Java Application Control Engines, Echelon SmartServers, Loytec LINX, etc.)

13) Points List: Every connected analog output (AO), analog input (AI), digital output (DO), digital input (DI), pulse accumulator (PA) input and other input or output device connected to the UMCS shall represent a point

14) Example Piping Diagrams showing specific device details (coil pumps, circuit setters, valves, etc.)

15) Drawings: A sample (one system) of Instrumentation and control wiring and installation drawings, showing wire routing on floor plans including terminal numbers, wire colors/numbers, and cable designations.

A2. Specification List: Provide list of all specifications and criteria used for the system design.

A3. A report of the engineering surveys or assessments detailing any identified equipment incompatibility between the existing and new systems.

B. Group II Technical Data Package: As a minimum the Contractor shall submit:

The initial existing conditions and site survey report. The report includes testing documentation that identifies inoperable/damaged equipment that is essential for a complete and functional system (e.g. actuators, linkage, dampers, valves, local control loops, etc.) and a cost estimate to repair/replace inoperable/damaged equipment.

C. Group III Technical Data Package: As a minimum the Contractor shall submit:

Test procedures for the factory test using UFGS 25 08 10 as a technical and format requirement. The test procedures shall cover actual equipment and sequences to be utilized by the Contractor for the specific project and shall describe all tests to be performed, and other pertinent information such as specialized test equipment required, length of factory test, and location of the factory test. The procedures shall provide detailed step-by-step actions associated with expected results to demonstrate compliance with all requirements of this Task Order. Describe the methods for simulating the necessary conditions of operation to demonstrate performance of the system. The factory test procedures shall demonstrate the monitoring, equipment control, and execution of programming as required to implement the sequences of operation.

D. Group IV Technical Data Package: As a minimum the Contractor shall submit:

D1. Contractor’s Field Tests (CFT): Documentation of the field testing, test and balance report, test and balance certifications, HVAC equipment start up and commissioning, control system commissioning, setup and calibration for all the systems; record the before and after sensor data (temperatures, flows, pressures, etc.) and final offsets established to achieve required accuracies.

D2. Performance Verification Test (PVT) and Endurance Testing Procedures: The Contractor shall prepare test procedures for the PVT and endurance test in compliance with the requirements of UFGS 25 08 10, excluding all surge and overvoltage tests. The test procedures shall describe all tests to be performed, and other pertinent information such as specialized test equipment required, and length of PVT. The procedures shall provide detailed step-by-step actions associated with expected results to demonstrate compliance with all requirements of this Task Order. Test procedures shall include tests for utilities, such as sewage systems, water distribution system, power distribution system, RF system and fuel oil storage system monitoring and control where applicable. Procedures shall be based on inputs shown, calculated points, and the requirements of the sequences of operation.

D3. Operation and Maintenance (O&M) Manuals: A draft copy of the operation and maintenance manuals, as specified for the Group V Technical Data Package, shall be included with the PVT procedures for use during procedure review and site testing.

D4. Draft As-Built Drawings: A draft set of the as-built drawings shall be included with the PVT procedures for use during performance verification testing. Drawings shall include the points list and sequence of operations.

D5. Training Documentation: Lesson plans/training manuals for the operator and maintenance training phases to include a list of reference materials, as applicable.

D6. Drawings: Final Instrumentation and control wiring and installation drawings, showing wire routing on floor plans including terminal numbers, wire colors/numbers, and cable designations.

E. Group V Technical Data Package: As a minimum the Contractor shall submit:

E1. Operation and Maintenance Manuals and Test Results. Submit Operation and Maintenance Data in accordance with Specification Section 01 78 23 OPERATION AND MAINTENANCE DATA, Data Package

Final copies of the manuals shall be delivered to the Government within 30 calendar days after completion of the endurance test. The draft copy used during site testing shall be updated with any changes required prior to final delivery of the manuals. Identify each manual's contents on the cover. The manuals will include the names, addresses, and telephone numbers of each sub-Contractor installing equipment and systems, and of the nearest service representatives for each item of equipment and each system. Provide a table of contents and correlating tab sheets for the manuals. Place tab sheets at the beginning of each chapter or section and at the beginning of each appendix. After completion of the PVT and endurance test, deliver the updated, final copies with the modifications made during installation, checkout, and acceptance.

The manuals include:

Hardware Manual: The hardware manual shall provide detailed data describing equipment furnished, including:

1) General description and specifications.

2) Installation, configuration, set-up, and checkout procedures.

3) Manufacturer's repair parts list indicating sources of supply.

4) Interface definition for equipment, sub-systems, and all other automated systems sharing data with UMCS or using UMCS inputs.

Software Manual: The software manual shall describe software functions, and shall include other information necessary to enable proper loading, testing, and operation. The manual shall describe and document software provided as part of the system. Where the supplier's standard software packages are utilized, the software manual shall include complete user documentation.

1) Operator Workstation (OWS) section:

a. Definitions of terms and functions.

b. Procedures for system startup/shutdown.

c. Description of the application programs.

d. Description of required sequences using control sequence software.

e. Database format and data entry requirements.

f. File directory.

g. Report generator data format, output format, and content.

h. Alarm messages and format.

i. System access requirements.

j. Description of communications protocols, including data formats, command characters, and a sample of each type of data transfer.

k. Description of control sequence programming.

2) Field Controller section: Provide the manufacturer’s software user manuals for all DDC Hardware/Firmware Programming and Configuration Software.

Maintenance Manual: The maintenance manual shall include descriptions of maintenance for equipment including inspection, periodic preventative maintenance, fault diagnosis, and repair or replacement of defective components.

Operator's Manual: The operator's manual shall fully explain procedures and instructions for operation of the system, including:

1) OWS equipment.

2) Archive equipment.

3) Network and Data Transmission Medium.

4) System startup and shutdown procedures.

5) Alarm presentation.

6) Recovery and restart procedures.

7) Data entry.

8) Parameter schedules.

9) Use of report generator.

10) Report generator data format, output format, and content.

11) Alarm messages and format.

12) System access requirements.

13) Graphics.

Installed Software Documentation Manual: The installed software manual shall include original and backup copies of the software installed on CD ROM. The software submittal shall include all Contractor information/data required to meet Cybersecurity requirements.

E2. Performance Verification Test Results. Provide documentation of the PVT detailing test-by-test results and any deficiencies noted. Include the resolution, corrective measures taken, and the signed acceptance by the Government’s representative.

E3. Endurance Test Results. Provide documentation of the Endurance Test detailing any failures/deficiencies and system off-line conditions. Include the resolution, corrective measures taken, and the signed acceptance by the Government’s representative.

F. Group VI Technical Data Package. As a minimum the Contractor shall submit:

F1. Updated As-built drawings including all final system revisions and modifications. Copies of the updated As-built drawings shall be delivered to the Government after opposite season test and prior to final acceptance.

F2. Warranty Letter

F3. Release of Claims Letter

Attachment 1

1.0 The Contractor shall follow, as applicable to this task order, all specifications per base contract (Section J).

2.0 The following marked up and annotated specifications are included in this task order: None.

3.1 The following additional guidance(s) are included in this task order:

3.2 ASHRAE Guideline 0.2:2015

Attachment 2

1.0 Where needed, the standard installation detail drawings, included in the base contract, are a requirement of this task order. The Contractor shall submit all recommended changes to the standard installation details to the Government for approval.

2.0 The following additional drawings are a requirement of this task order: None.

3.0 The following equipment/building list is included as a part of this task order:

Bldg# CM# ‐ Title Built CatCode RPA NAME Total Capacity

(SqFt)

Existing Situation(Known Deficiency) Equipment to be Replaced

1950 M71 ‐ Other: Test and

Balance

4-Oct-68 21410 VEH MAINT SHOP 14,000

This buildings systems have significant issues and exhibit signs indicating that proper Test, Adjust, and Balance (TAB) services were either never performed, or the systems have lost their balance over time. For example, the 2‐pipe water‐side system is not providing adequate

Differential Temperatures across the coils for most units and the air quantities from outlets are noisy on some outlets, while the other outlets in the system show almost no signs of airflow. Also, several AHU's in the building seem to be "throwing" their fan motor belts. This is most likely caused by pulley/sheave misalignment and/or improper belt tension.

NA

1950 M72 ‐ Other: Retro‐

Commissioning

4-Oct-68 21410 VEH MAINT SHOP

The building HVAC systems have significant issues; the DDC controls are not set up correctly, the majority of mechanical equipment has functional issues, and the central plant is not functioning as a DDC controlled system should. For example, economizer modes appear to not be functioning, AHU discharge air temperatures are not satisfied, and space temperature set points are not satisfied. This building deserves more attention to provide the performance and efficiency that is expected for a DDC controlled system. Most systems in the building are currently providing little, if any, comfort benefits to the occupants.

NA

4320 M72 ‐ Other: Retro‐

Commissioning

20-Nov-09 21410 VEH MAINT SHOP 29,329

The split system air handling units in this building are equipped with DDC systems, but there does not appear to be a schedule or any discernable sequence of operations. For instance, it is unclear whether the air handlers are running economizer mode when applicable.

There was no documentation present to indicate how exhaust fans and energy recovery ventilators are supposed to operate. The HVAC equipment in this building is all fairly new (2008‐2009), and was likely installed as part of a recent design‐build job. The equipment is in very good condition, but it is definitely not functioning optimally.

NA

4336 M71 ‐ Other: Test and

Balance 24-Sep-01 61050 ARMY AUDIT AGENCY 4,400

There is no evidence that TAB services have been performed on this building. Additionally, the occupants complain of hot and cold spots throughout the building. This indicates that the building was likely never balanced.

NA

9584 M72 ‐ Other: Retro‐

Commissioning

20-May-05 14182 BATTALION HEADQUARTERS 10,645

There are significant issues with the building's HVAC and HVAC controls. The complexity of the HVAC systems and their controls requires a high level of care and attention from the controls contractor in order for the systems to function correctly, resulting in a high performance, high efficiency system with great occupant comfort. If the systems were not given this attention and care when they were set‐up, then the systems will not provide the performance and efficiency they were designed to have. This building is in great need of Retro‐commissioning

Some examples of issues that are warranting RCx are; The AHU‐1 Return Air damper is not linked to the Outside Air/Economizer damper as it should be and the OA/ Economizer Damper does not close off when the unit is turned off. During economizer mode (the only mode witnessed), AHU‐1 Supply air temp is not being controlled to the 65F set point, as the actual SaT is 60F. AHU‐1 Supply Fan VFD does not appear to be controlling to the AHU static pressure set point of 2.0”wc, as the BAS shows an actual value of 1.0”wc, while the VFD is steady at 40Hz in auto mode. This points to no control of duct static pressure/VFD control. The AHU‐1 Return Air CO2 sensor is not installed in the ductwork and is hanging freely. There is also no monitoring or control in the BAS for this sensor. The building pressurization controls are not functioning correctly‐The building static pressure sensor constantly reads 0.00”wc, no matter how the air systems are operating. This indicates that there may be an issue with the locations of the high and/or low‐side static pressure reference points.

VAV’s o VAV‐1 space temp set point is 72F, the actual space temp is 62F and the Reheat control valve is commanded to 100%. Occupants say that spaces are always cold during winter and hot during summer. Possible ductwork, controller, and or damper issues o VAV‐6 space temp stpt is 67F, actual space temp is 72F, damper command is only 40.5%, recommend verifying maximum cooling airflow set point is per schedule o VAV‐12 Space temp stpt is 72F, actual space temp is 68F, and RH valve is commanded to 100%. Possible valve issue o VAV‐14 Space temp stpt is 67F, actual space temp is 71F, damper command is only 22% recommend verifying maximum cooling airflow set point is per schedule o VAV‐16 is not communicating with BAS o VAV‐19 Reheat valve is at 100%, but the fan is being commanded off. Fan should be on

Replace AHU‐1 Return Air CO2 sensor. Replace building static pressure sensor.

10015 M71 ‐ Other: Test and

Balance

1-Jul-53 14182 BRIGADE HEADQUARTERS 6,149

The HHW and CHW systems appear to have never been balanced. There are many occupant complaints of thermal discomfort. Also, there is no evidence that any hydronic valves were ever throttled in an attempt to balance the system. There are many balancing devices missing from these systems, so some modifications may need to be made to be able to appropriately balance these systems.

NA

10015 M72 ‐ Other: Retro‐

Commissioning

1-Jul-53 14182 BRIGADE HEADQUARTERS

Building 10015 has engineered systems that appear to not have been correctly installed by the mechanical contractor and the controls appear to not have been set up correctly by the controls contractor. The building systems are currently very inefficient and lack proper functionality. This building could greatly benefit from Retro‐commissioning services, to bring the systems to the level of performance and efficiency that the design intended. Some examples of issues that were discovered that led to the recommendation for Retro‐ commissioning are; currently the internal boiler Supply temp set point is set at 160F. The internal boiler supply temp sensor is reading 65F because it has been removed from the thermowell and it is reading the ambient Mech. Room temperature, this is causing the boiler to constantly think it is not satisfied. The boiler then trips out on High temp protection, restarts and does this cycle over again every minute.

Also, There is a mixing valve that is controlled by the Distech system for Heating Hot Water system Supply temperature reset. Currently there is little to no control of the HHW supply temp; the valve positions are DDC presets, i.e. 25%, 50, 75, 100% Valve commands, based on control logic that is not actually controlling to the set point. The mixing valve (bypass) is actually starving the boiler of water, as the pump causes reverse flow thru the bypass (there is a boiler low flow alarm), and the piping shakes violently periodically.

Replace internal boiler supply temp sensor.

17030 M72 ‐ Other: Retro‐

Commissioning

1-Jul-67 21410 MOTOR POOL 26,102

There are wild temperature fluctuations throughout this building, ranging from 58 to 73 deg F. The air handling units in this building are run off standalone thermostats, meaning there is no consistent control between zones. Some units have programmable thermostats, but are incorrectly programmed or overriden. We also recommend implementing setpoint band limits, to keep temperatures between zones relatively consistent.

Replace all programmble thermostats.

18021 M72 ‐ Other: Retro‐

Commissioning

12-Feb-05 14185 COMPANY HEADQUARTERS 5,885

There are many indications that the controls for this building were either never properly set up or have been incorretly modified over time.The issues found indicate that the building would greatly benefit from RCx services. Some examples of the issues found are; the

CHWR Temp sensor is out of calibration DDC:147, while the actual CHWR temp is: 50F.The CHWS Temp sensor is not calibrated, the DDC indicates 72F, while the actual temp is 50F. There are some issue with the HHW System control, for example, HP‐1 was found in “Hand” , while the enable point for HHW system was commanding to disable the system, the OAT was 45F at the time. AHU‐1 is simultaneously heating and cooling. Also, during economizer mode, the Econ damper, and HW and CHW valves were all trying to control. The Econ damper and cooling valve were trying to control to the SaT set point, while the HW valve was trying to control to the Hot Deck set point.

This is more than defeating the purpose and benefits of having an ECONOMIZER mode. Also, the OAD/ECON/ SaT control is erratic and is not controlling to the SaT set point.

NA

21004 M72 ‐ Other: Retro‐

Commissioning

4-Aug-09 14185 COMPANY HEADQUARTERS 54,872

Many issues were found with the DDC control system. Some examples include; the ERV OA temperature sensor is providing erroneous readings, Approximately half of the BCU's are not being control by the DDC and are simply on and standing by with no run signal even though the DDC is calling for enable, the CHW pump VFD is programmed for a minimum speed of 60 Hz‐ causing the drive to be at 100% even if the system is satisfied, and the AHU‐1 Return fan does not appear to be controlling its speed correctly. This is a recent building

(2009) with newer systems that appear to have never been started up and set up correctly by the controls contractor. The thorough "chec out" that the contractor and controls contractor is responsible for was never performed.

NA

22019 M71 ‐ Other: Test and

Balance

23-Aug-01 61050 ADMIN GEN PURP 5,247

This buildings systems have significant issues and exhibits signs that indicate that proper Test, Adjust, and Balance (TAB) services were either never performed, or the systems have lost their balance over time. A balanced building provides the greatest comfort, efficiency, and performance.

NA

22021 M71 ‐ Other: Test and

Balance

1-Jul-94 21410 MOTOR POOL 13,195

The airside systems appear to have never been balanced. There are many temperature, noise, and velocity complaints from the occupants

There are also greatly varying space temperatures found from room to room. The building needs to be balanced to provide more comfort and efficiency to the building.

NA

22021 M72 ‐ Other: Retro‐

Commissioning

1-Jul-94 21410 MOTOR POOL

There are significant HVAC controls issues found in this building, warranting Retro‐commissioning services. The following are some examples of issues that indicate there would be a benefit to RCx services;

The building timeclock/schedule is not set up and programmed, the condenser compressor continues to run even though the condenser fan is off, the condenser compressor appears to run constantly when a system enable signal is given from controller, there appears to be

Simultaneous heating and cooling at the AHU, the condenser cycles too often, the Economizer mode does not appear to be controlling correctly, and none of the zones tstats/ zone dampers appear to be functioning correctly.

NA

24007 M71 ‐ Other: Test and

Balance

1-Jul-75 14183 BATTALION HEADQUARTERS 5,819

This buildings systems have significant issues and exhibits signs that indicate that proper Test, Adjust, and Balance (TAB) services were either never performed, or the systems have lost their balance over time. The occupants have many complaints of hot and cold spots, noisy diffusers, and outlets with high/low airflow. A balanced building provides the greatest comfort, efficiency, and performance.

NA

24007 M72 ‐ Other: Retro‐

Commissioning

1-Jul-75 14183 BATTALION HEADQUARTERS

The building HVAC systems have significant issues; the DDC controls are not set up correctly, the majority of mechanical equipment has functional issues, and the central plant is not functioning as a DDC controlled system should. This building deserves more attention to provide the performance and efficiency that is expected for a DDC controlled system. Most systems in the building are currently providing little, if any, comfort benefits to the occupants.

NA

25015 M71 ‐ Other: Test and

Balance

3-Feb-03 14132 READY BLDG 3,626

There are many occupant complaints about hot/cold spaces.This buildings systems have significant issues and exhibits signs that indicate that proper Test, Adjust, and Balance (TAB) services were either never performed, or the systems have lost their balance over time. A balanced building provides the greatest comfort, efficiency, and performance.

NA

27001 M72 ‐ Other: Retro‐

Commissioning

1-Jul-74 14183 BATTALION HEADQUARTERS 12,398

There are many indications present that show that the building BAS system and control devices were never properly installed, programmed, and calibrated as they should have been by the controls contractor. This building has significant issues that warrant a strong recommendation for the retro‐commissioning of this building. The following are some examples of improper controls installation and programming. Air Handler AHU‐1 was found to be greatly functionally flawed and a great energy wasting system. For example, the Hot deck temp sensor is installed upstream of heating coil, it should be installed downstream of the coil. This causes the controls to think that the setpoint is not satisfied, and the heating control valve maxes out at 100% open, and heats the hot deck whenever the boiler system is enabled. This is causing unnecessary heating and an additional load on the building, which causes the cooling control valve to be open to

100% as well, to compensate for the increased load. Additionally, the cold deck temp and hot deck temp sensors need to be the averaging type. Currently single point is provided. AHU‐1's minimum outside air damper setting is currently 100% open. The TAB contractor likely set this to provide the minimum outside air CFM. If this is the case, then economizer mode is not possible. If the 100% set point was not set by the TAB contractor, this points to improper controls programming, which is causing large quantities of unconditioned outside air to enter the system, greatly reducing the system efficiency even further. Dissecting the AHU‐1 controls further we found that the controls Sequenc states that the hot deck temp setpoint is to be reset based on OA temperature. This sequence statement does not occur. In addition, the

Economizer mode does not appear to work per sequence, even if favorable OA conditions are available for it. Simple controls programming is also flawed, for example, the AHU‐1 Supply fan status shows off in the DDC, even though the fan is running.CHW pump status shows off, even though the pump motor is running. Exhaust fan status shows off, even though the fan is running.the Building schedule is not set up in the Distech interface, systems ppear to run 24/7.All valves and dampers for AHU‐1 do not close/open on shutdown as the control sequence states. The HHW system is also greatly flawed. Boiler internal controls are not set up to modulate stage to maintain supply temp setpoint. Currently the two stages of heat ignite and the boiler cycles too often. Two stages always come on, no matter how close or far away from setpoint the actual supply temperature is.The BAS heating hot water supply temp sensor is not calibrated correctly. The BAS shows 145F, but the actual temperature is 155F.Heating hot water sequence requires Boiler 1 and heating hot water pump to lock out when OAT is greater than 65F. Currently the boiler remains active.

NA

27003 M72 ‐ Other: Retro‐

Commissioning

28-Aug-09 14185 COMPANY HEADQUARTERS 57,187

While this building and its systems are fairly new (est. 2009), it is not performing optimally. The relevant points are being captured in the

DDC system, but sequences have not been optimized for energy efficienct operation. For instance, the CHWP was running at the time of the survey, even though the outside air temperature was 43F. The AHUs serving the high‐bay storage areas have a relatively narrow range of setpoints, which will call for more frequent heating or cooling of areas that are generally unoccupied. Other recommendations for these issues have already been made elsewhere in this report, but it would be advisable to further investigate the controls sequences.

NA

31010 M72 ‐ Other: Retro‐

Commissioning

25-May-72 14183 BATTALION HEADQUARTERS 12,382

There appears to be many opportunities for controls "Loop Tuning" of various points in the DDC system and opportunities for minor changes that will greatly benefit the control of the buildings HVAC systems. For example, the PID control of the hot deck for AHU‐1 was never appropriately "tuned". There is a single point hot deck temperature sensor 6" downstream of the heating coil that is being over influenced by the coils heating capacity, this is causing continual "overshooting" of the Hot Deck Temperature set point. There is much room for improvement on the cold deck configuration and controls as well. The zone dampers appear to be controlling the space temperature set points pretty well, but there is room for improvement here as well. Many controls contractors do not take the time to appropriately "tune" and test the control loops they implement. Each control loop is different, as the configurations, loads, and sizing are all different, and must be tuned individually to provide the optimum performance and efficiency from the system (zones).

NA

31011 M71 ‐ Other: Test and

Balance

18-Apr-83 14185 COMPANY HEADQUARTERS 25,480

The hydronic and air systems for this building were never balanced by a TAB contractor. Balancing devices were found to not be throttled, there are noticeable differences in the different outlets air quantities, there are also no signs of static pressure readings or traverses found.

A properly balanced building provides better occupant comfort, system performance, and system efficiency. It is common that owners think a system is undersized when the real problem is that the system is not correctly balanced.

NA

31011 M72 ‐ Other: Retro‐

Commissioning

18-Apr-83 14185 COMPANY HEADQUARTERS

There are significant issues with the buildings systems, both for DDC controlled systems and stand‐alone systems. Specifically there are issues with the Heating Hot Water system, AHU's, and Chilled Water system. For example; the HHW system has boilers that cycle too frequently, failed DDC sensors, pumps that vibrate excessively, a non‐communicating BAS‐boiler interface, faulty OAT reset strategy, and internal boiler controls that were not set up correctly when installed. The AHU's are simultaneously heating and cooling spaces to two separate set points. This strategy is very wasteful and can be easily corrected by implementing an appropriate sequence of operation.

NA

33028 M72 ‐ Other: Retro‐

Commissioning

18-Aug-04 14185 COMPANY HEADQUARTERS 5,967

This group of buildings has many functional issues with the DDC controlled and stand alone systems, alike. The issues found during our walk thru likely just scratch the surface if what issues actually exist. Some examples of the encountered issues are as follows; there is currently only 1 chiller running (ch‐1) while both pumps continue to run, the paralleling cross‐connect at the CHWPs is open, so the dead chiller is creating a false load in the system (leaving water temp of 62F). The dead chiller (CH‐2) is providing erroneous data: the integral chiller control panel is displaying a chiller differential temperature of 10F, when the differential is actually near 0F. The chiller also indicate that the compressors are running while they are not. The CHW system distech display and controller appears to be failed. Also, the HHW system has multiple obvious issues. Boiler 2 is manually off at the disconnect‐ likely for seasonal savings. There appears to be no communication between the DDC and the boilers, so manual control is required. Additionally, there are issues with the air handlers. All

AHU HHW control valves are at 100% open (coil) instead of full bypass. They are still trying to control to the hot deck set point while the

HHW system is disabled. All AHUs are intended to have an economizer mode for seasonal energy savings, currently none of the AHUs

Economizer modes function. There is also a motorized relief damper near the inlet of the AHU, the location of the damper is very close to the high negative pressure created by the AHU. When the relief damper opens, it will be drawing in outside air rather than relieving return duct pressure. The AHU OA dampers are also being commanded to 100% open, the outside air temperature is 95F.

Replace CHW System distech display and controller.

33030 M72 ‐ Other: Retro‐

Commissioning

18-Aug-04 14185 COMPANY HEADQUARTERS 5,967

This group of buildings has many functional issues with the DDC controlled and stand alone systems, alike. The issues found during our walk thru likely just scratch the surface if what issues actually exist. Some examples of the encountered issues are as follows; there is currently only 1 chiller running (ch‐1) while both pumps continue to run, the paralleling cross‐connect at the CHWPs is open, so the dead chiller is creating a false load in the system (leaving water temp of 62F). The dead chiller (CH‐2) is providing erroneous data: the integral chiller control panel is displaying a chiller differential temperature of 10F, when the differential is actually near 0F. The chiller also indicate that the compressors are running while they are not. The CHW system distech display and controller appears to be failed. Also, the HHW system has multiple obvious issues. Boiler 2 is manually off at the disconnect‐ likely for seasonal savings. There appears to be no communication between the DDC and the boilers, so manual control is required. Additionally, there are issues with the air handlers. All

AHU HHW control valves are at 100% open (coil) instead of full bypass. They are still trying to control to the hot deck set point while the

HHW system is disabled. All AHUs are intended to have an economizer mode for seasonal energy savings, currently none of the AHUs

Economizer modes function. There is also a motorized relief damper near the inlet of the AHU, the location of the damper is very close to the high negative pressure created by the AHU. When the relief damper opens, it will be drawing in outside air rather than relieving return duct pressure. The AHU OA dampers are also being commanded to 100% open, the outside air temperature is 95F.

Replace CHW System distech display and controller.

33032 M72 ‐ Other: Retro‐

Commissioning

18-Aug-04 14185 COMPANY HEADQUARTERS 5,967

This group of buildings has many functional issues with the DDC controlled and stand alone systems, alike. The issues found during our walk thru likely just scratch the surface if what issues actually exist. Some examples of the encountered issues are as follows; there is currently only 1 chiller running (ch‐1) while both pumps continue to run, the paralleling cross‐connect at the CHWPs is open, so the dead chiller is creating a false load in the system (leaving water temp of 62F). The dead chiller (CH‐2) is providing erroneous data: the integral chiller control panel is displaying a chiller differential temperature of 10F, when the differential is actually near 0F. The chiller also indicate that the compressors are running while they are not. The CHW system distech display and controller appears to be failed. Also, the HHW system has multiple obvious issues. Boiler 2 is manually off at the disconnect‐ likely for seasonal savings. There appears to be no communication between the DDC and the boilers, so manual control is required. Additionally, there are issues with the air handlers. All

AHU HHW control valves are at 100% open (coil) instead of full bypass. They are still trying to control to the hot deck set point while the

HHW system is disabled. All AHUs are intended to have an economizer mode for seasonal energy savings, currently none of the AHUs

Economizer modes function. There is also a motorized relief damper near the inlet of the AHU, the location of the damper is very close to the high negative pressure created by the AHU. When the relief damper opens, it will be drawing in outside air rather than relieving return duct pressure. The AHU OA dampers are also being commanded to 100% open, the outside air temperature is 95F.

Replace CHW System distech display and controller.

33034 M72 ‐ Other: Retro‐

Commissioning

18-Aug-04 14185 COMPANY HEADQUARTERS 5,967

This group of buildings has many functional issues with the DDC controlled and stand alone systems, alike. The issues found during our walk thru likely just scratch the surface if what issues actually exist. Some examples of the encountered issues are as follows; there is currently only 1 chiller running (ch‐1) while both pumps continue to run, the paralleling cross‐connect at the CHWPs is open, so the dead chiller is creating a false load in the system (leaving water temp of 62F). The dead chiller (CH‐2) is providing erroneous data: the integral chiller control panel is displaying a chiller differential temperature of 10F, when the differential is actually near 0F. The chiller also indicate that the compressors are running while they are not. The CHW system distech display and controller appears to be failed. Also, the HHW system has multiple obvious issues. Boiler 2 is manually off at the disconnect‐ likely for seasonal savings. There appears to be no communication between the DDC and the boilers, so manual control is required. Additionally, there are issues with the air handlers. All

AHU HHW control valves are at 100% open (coil) instead of full bypass. They are still trying to control to the hot deck set point while the

HHW…