SOW - Replace Bldg 65 Air Compressors.pdf

Statement of Work

Project Title: Replace Building 65 Air Compressors

Document Date: 24 June 2026

1.0 Background

The Air Force Research Laboratory (AFRL/RAVZ) has identified a critical need to replace the existing air compressor system located in Building 65. The current system, consisting of two Ingersoll Rand Nirvanna air compressors and associated dryers, is approaching its end of service life. The equipment has experienced multiple failures, leading to costly repairs and significant disruptions to facility operations.

Furthermore, with only one currently operational dryer, the system lacks full redundancy. This compressed air system is essential, serving critical operational and research-specific equipment within the facility. This project will mitigate operational risks by replacing the aging equipment with a new, fully redundant, and reliable system.

2.0 Scope of Work

The contractor shall provide all necessary labor, materials, tools, and equipment to complete the turnkey replacement of the Building 65 air compressor system. The scope of this project includes the disconnection, removal, and disposal of two existing air compressors and two dryers; the provision and installation of two new oil-free rotary screw air compressors and two new air dryers; and the installation of all associated piping, electrical connections, and control systems required for full operational capability. The contractor shall ensure that at least one compressor remains operational throughout the project execution, minimizing downtime as specified herein.

3.0 Requirements

The contractor shall perform the following tasks:

3.1 Equipment Removal and Disposal

The contractor shall:

• Carefully disconnect all electrical, piping, and ancillary connections from the existing equipment to facilitate removal.

• The piping that serves the Zeks dryer shall be removed back to the flanges with the shutoff valves.

• Remove and dispose of the following government-owned equipment in accordance with all applicable federal, state, and local regulations:

o Two (2) Ingersoll Rand Nirvana air compressors (Model: IRN100H-CC).

o One (1) Ingersoll Rand air dryer (Model: TS11A).

o One (1) Zeks air dryer (Model: 800HSFA400).

o One (1) associated coalescing filter and existing prefilters.

• Remove and dispose of the existing Ingersoll Rand mist eliminator located downstream of the dryers. This unit shall not be replaced.

3.2 Equipment Specifications

The contractor shall furnish and install new equipment meeting the following minimum specifications:

• Air Compressors:

o Quantity: Two (2) o Type: Oil-free, rotary screw o Cooling: Air-cooled o Capacity: Each unit shall provide a minimum of 400 CFM at 125 psig.

o Variable speed drives are NOT required

• Air Dryers:

o Quantity: Two (2) o Type: Air-cooled o Capacity: Each unit shall be sized for the new compressors with a minimum capacity of

490 CFM.

• Ancillary Components:

o Furnish and install a new prefilter system compatible with the new compressors.

3.3 Installation

The contractor shall:

• Modify existing concrete equipment pads as necessary to accommodate the footprint of the new equipment.

• Install the new compressors in the same location as the removed units. The new dryers shall be installed in the location of the removed Ingersoll Rand dryer.

• Install all new piping, valves, and supports required to connect the new compressors and dryers to the existing plant air distribution system.

o The piping and valve configuration shall allow for the independent isolation of each compressor and dryer for maintenance purposes while the other units remain in service.

o The system shall be configurable to allow either or both compressor/dryer trains to be operational simultaneously.

• Modify and extend existing electrical services as required to safely and effectively power the new equipment. All electrical work shall comply with the National Electrical Code (NEC) and local standards.

• The Ingersoll Rand labeled line reactors that feed power to the existing compressors are only necessary if a variable speed drive compressor is supplied, which per section 3.2 is not a requirement. If these line reactors are not needed, they shall be removed by the contractor.

• Perform manufacturer-recommended startup, testing, and commissioning procedures for all new equipment.

• The crane within the space is available to be used by the contractor, at their own risk and liability.

• The contractor is responsible for getting the new equipment to the facility and receiving it prior to installation.

3.4 Control System

The contractor shall:

• Provide and install a master control system capable of managing both compressors and dryers. If the compressor and/or dryers have this capability built in, that shall be a sufficient solution for control.

• The control system must support automated lead/lag functionality and have the capability to alternate the lead unit based on accumulated run hours to ensure even wear.

• The compressors shall be equipped with external communication outputs that can be monitored via the Modbus protocol.

3.5 Phased Installation and Operational Continuity

To ensure continuous facility operations, the contractor shall adhere to the following phased installation sequence:

1. One existing Ingersoll Rand compressor and the Zeks dryer shall remain operational.

2. The contractor shall remove the second Ingersoll Rand compressor and the Ingersoll Rand dryer.

3. The contractor shall then install the two new dryers and one new compressor. This new train shall be commissioned and brought online.

4. Once the new train is fully operational, the second existing compressor and dryer shall be decommissioned, removed, and disposed of.

5. The contractor shall then install the second new compressor.

• Continuous plant air must be maintained at all times. Any required shutdowns of the air system must be scheduled and approved by the Government project manager in advance and shall not exceed four (4) hours in duration.

3.6 Training

The contractor shall provide a comprehensive training session on the operation and routine maintenance of the new compressor system.

• Duration: Up to four (4) hours.

• Audience: Up to three (3) designated Government employees.

• The cost of this training shall be included in the total project price.

4.0 Deliverables

• Fully installed, commissioned, and operational air compressor system meeting all requirements specified herein.

• Operations and Maintenance (O&M) manuals for all new equipment.

• Completion of the training session as specified in Section 3.6.