ATTACHMENT_NUMBER_0001_140P4321Q0049_SPAR_Commissioning_SOW.pdf

Scope / Statement of Work (SOW)

Recommission existing HVAC System

Springfield Armory

Prepared By: NPS HACE

Date: 2/4/2021

Table of Contents

1.0 Project Description / Summary

2.0 Objectives

3.0 Background

4.0 Specific Work / Tasks

5.0 Optional Work / Tasks

6.0 Government Furnished Equipment / Materials / Other

7.0 Special Conditions / Requirements

8.0 Place of Performance

9.0 Performance Period / Schedule Requirements

Recommission existing HVAC System Springfield Armory / SPAR

1.0 PROJECT DESCRIPTION / SUMMARY:

The primary work of this project includes, but is not limited to, survey and recommission the existing HVAC system, and update the Building Management

System.

2.0 OBJECTIVES:

This project is intended to allow for the proper operation and maintenance of the existing HVAC system.

3.0 BACKGROUND:

The existing HVAC (Heating Ventilation and Air Conditioning) systems were installed under multiple construction contracts generated by different NPS agencies and most of the documentation is no longer available. The BAS (Building Automation System) interface for most of the HVAC is Delta Controls ORCA software which does not have a consistent graphical interface for the various HVAC systems. The control system is not connected to the internet.

The building has a basement and three above grade floors with an air handler for each floor with additional air handling and HVAC equipment of specific spaces.

Desired conditions:

Collection materials should be kept near 65 DegF, 48% RH.

Occupied areas can be warmer.

Some areas are mixed use.

3rd floor is mostly collection storage

2nd floor is half office and half collection storage.

1st floor is the display area for visitors

Known issues:

Not all actuators are known to be operational

Hot gas reheat does not work correctly due to installation and/or control issues.

Many points are in “manual” mode due to issues with the system.

Second floor air handler trips out on overloads.

Second floor scroll compressor not connected to control system.

Humidifiers are not working.

List of equipment assembles

Asset Description

451750 AC Package Unit, 20 TON, Air Cooled, No Heat, RTU3

451752 AC Package Unit, 20 TON, Air Cooled, No Heat, RTU4

451724 Air Handling Unit [AHU‐1], Sngl ZnConstVol, 5500 CFM, Electric

1136141 Air Handling Unit [AHU‐1E], Sngl ZnConstVol, 3000 CFM, Electric

451726 Air Handling Unit [AHU‐2], Sngl ZnConstVol, 7000 CFM, Electric

451723 Air Handling Unit [AHU‐3], Sngl ZnConstVol, 7000 CFM, Electric

1136148 Air Handling Unit [AHU‐4], Sngl ZnConstVol, 7000 CFM, Electric

451725 Air Handling Unit, Sngl ZnConstVol, Electric, [Condenser??]

1136125 Boiler, Water Tube Pack, 140 MBH, Natural Gas

1136130 Boiler, Water Tube Pack, 140 MBH, Natural Gas

1136131 Boiler, Water Tube Pack, 140 MBH, Natural Gas

451727 Boiler, Water Tube Pack, 521 MBH, Natural Gas, BL13

451728 Boiler, Water Tube Pack, 521 MBH, Natural Gas, BL14

451729 Boiler, Water Tube Pack, 521 MBH, Natural Gas, BL15

1136149 Chilled Water Sys, Fluid Cooler, 12 TON [Condenser for AHU1 and AHU1E]

1136144 Chilled Water Sys, Fluid Cooler, 17.5 TON [Condenser for AHU‐2]

1136151 Chilled Water Sys, Fluid Cooler, 17.5 TON [Condenser for AHU‐3]

1136152 Chilled Water Sys, Fluid Cooler, 21 TON [Condenser for AHU‐4]

1136147 Condenser Unit, Air Cooled, 0 TON

1136146 Condenser Unit, Air Cooled, 0 TON

1136164 Electrical Panel, 225 AMP, 208 VOLTS, 42

1136162 Electrical Panel, 800 AMP, 208 VOLTS, 66

1620660 HVAC Computer System

1136143 Pump, Centrif‐One, Cast Iron

1136145 Pump, Centrif‐One, Cast Iron

1136128 Pump, Centrif‐One, Cast Iron

1136136 Pump, Centrif‐One, Cast Iron

1136140 Unit Heater, Hot Water, 350 CFM, 7.3 KW

1136154 Unit Heater, Hot Water, 350 CFM, 7.3 KW

4.0 SPECIFIC WORK / TASKS:

a. Document the existing system.

It is the intent that this information will be used as part of the BMS graphics.

1. Create Redline drawing of the HVAC system for each floor.

1. Location of equipment and space sensors

2. Location of ducts, diffusers & grills, coils… Redlines do not need duct sizes, but will show the general location of ductwork schematically as required for a general understanding of the system during equipment failures.

2. Create a schematic sketch of each system.

1. Each air handler showing condenser circuit, outside air, return air, coils, filters, fans, humidifier, each sensor, damper and valve.

2. Hot water system including boilers, pumps, valves, fuel, expansion tank, and other associated equipment.

3. Create Balancing report of existing conditions.

1. List of equipment indicating manufacture, model #, capacity

2. Existing electrical power circuit #, volts, phase actual amps & name plate for equipment.

3. Existing air flow rates at each diffuser / grill. Also indicate square feet of area served by each diffuser and CFM/SF for each diffuser.

4. Existing air flow at each air handler including outdoor air, return and supply flow rates.

Belt size and filter size

Sketch of area served

5. Existing water flow to each coil and boiler where flow measuring valves are available.

6. Humidifier information

7. Pressure drop across filters, coils. Inspect all filters and coils for any maintenance requirement.

8. Boiler efficiency and readings

4. Document Sequence of control for each air handler / condensing unit

5. Document Sequence of control for the boiler system

6. Obtain manufactures data for boilers, air handlers, condensers, pumps.

7. Provide a recommended preventative maintenance plan.

1. Weekly, Monthly, Quarterly, Seasonal, Annual work

2. Recommended work based on observation of existing conditions.

8. Create O&M manual (PDF on a DVD). Three copies

Include all information above on CD.

b. Update system markings.

1. Mark each actuator and relay with lettering indicating its designation on the

BAS with permanent marker. Mark each solenoid.

2. Mark each sensor in mechanical spaces with permanent marker.

c. Generate graphics for the existing Delta Controls system

1. Floor plan of each floor.

1. Color code floor by air handler served

2. Show equipment location of air handlers and boilers

3. Show space sensor locations

2. Graphic of each air handler

1. Show each status, settings, input and output, including the remote associated space temperature and duct smoke detector.

2. Provide a brief sequence of operation

3. Graphic of boiler system

1. Show all status, inputs and outputs

d. Replace the following damaged HVAC / BAS equipment

1. None known at this time

e. Commission the existing HVAC system

1. Provide a Commissioning Firm that is certified in commissioning by one of the following: NEBB, ACG, ICB/TABB, AEE, University of Wisconsin‐Madison, ASHRAE, or BCA in the commissioning of HVAC systems with five years of experience in the commissioning of HVAC systems.

2. Review existing:

1. space temperature / humidity data.

2. sequence of control

3. balancing data

4. space requirements

3. Verify existing sensor locations are correct for current conditions.

4. Verify the sequence of control is consistent with the current space requirements. Provide recommendations to improve the system.

5. Verify the system works properly in both winter, summer and shoulder seasons. Verify system responds appropriately to power outages (fail safe) and power restoration.

6. Provide a complete functional performance test

1. Point‐to‐point observations including demonstrating system flow meters and sensors have been calibrated and are correctly displayed on the Operator work station

2. Actuator operation observations demonstrating actuator responses to commands from the control system

3. As‐found condition of the system operation

4. Interconnected system operation observation demonstrating that the system works as intended.

5. Simulate conditions by overriding values and observe that the system is operating appropriately.

6. Adjust and tighten existing actuators to work properly. Verify signal and power are reaching actuators. Document any non‐ working actuators for possible replacement.

7. Generate an issues log for HVAC system.

Examples: missing check valve, code violation found.

8. Include an executive summary describing the overall commissioning process, the results of the commissioning process, any outstanding deficiencies and recommended resolutions, and any seasonal testing that must be scheduled for a later date.

Detail any deficiencies discovered during the commissioning process and the corrective actions taken in the report.

9. Troubleshoot equipment that is not working and provide ballpark estimate for repair.

10. Locate areas where proper HVAC conditions may not be maintained due to limited air flow or other reasons.

f. Update existing controller programing

1. Provide updates to the existing SCADA to ensure the system is operating as needed based on the commissioning data. (The operator currently needs to make periodic adjustments due to the SCADA not being perfect. Interview the operator and update the SCADA.)

2. Balance PID loops (if needed), calibrate sensors.

3. Install alarms for sensor readings that are outside required parameters.

4. Create temperature and humidity graphs for each space sensor and each air handler and provide links from the graphics. Graph data rate should allow for at least two years data before being overwritten. Provide master composite graph for each air handler.

5. Copy all controllers and make a backup DVD that includes all controllers, graphics and ORCA View data that would be required to recreate the system if the existing hard drive failed.

g. Training

1. Provide 4 hours onsite training specific to the maintenance and operation of the HVAC system at this location.

2. Provide an additional 4 hours onsite training specific to the BAS system at this location.

5.0 OPTIONAL WORK / TASKS:

a. Update existing Delta Controls hardware and software.

1. Provide a 26” Monitor

2. Provide a CPU with latest Windows software. Minimum 0.5 TB hard drive, 16

GB RAM, 6 core processor, USB C, HDMI, 2.9 GHz, DVD read write, designed to operate full time as a control system computer, and as recommended by the control software manufacture.

3. Transfer all software and keys to the new hardware as required for a fully operating system.

4. Provide all software updates to the current version of ORCA View.

5. Provide a CAT 6 wire as required to relocate the control interface computer to the Curator’s office.

b. Damper or valve actuator replacement.

Installation / replacement of control components is part of this task order to be performed on equipment missing or damaged as located during the commissioning process. Cost to be determined based on 4‐Clicks line items as appropriate.

For bid purpose assume (4) “Control component, electronic system, misc.

components, electric motor damper actuator”

c. Provide CAD drawing of the existing system based on the redline drawing.

1. Drawing of each floor showing items on redline

2. Drawing of each air handler / condensing unit showing sensors, coils, piping as a schematic. Drawing to include sequence of control, and mechanical schedule information that is available. (make and model of air handler…)

3. Schematic Drawing of boiler system. Drawing to include sequence of control, and mechanical schedule information that is available. (make and model of air handler…)

6.0 GOVERNMENT FURNISHED EQUIPMENT / MATERIALS / OTHER:

1. The Government is not providing any material or equipment for this project.

7.0 SPECIAL CONDITIONS / REQUIREMENTS:

There are no special conditions for this project.

8.0 PLACE OF PERFORMANCE:

a. Springfield Armory National Historic Site

b. One Armory Square, Springfield, MA 01105

9.0 PERFORMANCE PERIOD / SCHEDULE REQUIREMENTS:

a. All on‐site work must be completed between the hours of 7:00 AM and 3:30

PM.

10.0 ATTACHMENTS:

a. ATTACHMENT NUMBER 0003 140P4321Q0049 SPAR Floor Plans.PDF (DWG available)

b. ATTACHMENT NUMBER 0004 140P4321Q0049 SPAR 1981 SPAR Mechanical

c. ATTACHMENT NUMBER 0005 140P4321Q0049 SPAR 1987 SPAR_458_41004_B

– ETIC (includes mechanical)

d. ATTACHMENT NUMBER 0006 140P4321Q0049 SPAR 1990 SPAR Mechanical

Storage Room 303 PDF

e. ATTACHMENT NUMBER 0007 140P4321Q0049 SPAR 2002 SPAR Mechanical

PDF