N3904026PSE3149 Sources Sought Notice.pdf

Sources Sought Temporary Desiccant Climate Controlled Unit (DCCU) System

This is a Sources Sought Notice only. No solicitation is being issued at this time. This notice is issued for the purpose of market research in accordance with Federal Acquisition Regulation (FAR) Part 10. Please do not submit price quotations at this time. The issuance of this Sources Sought Notice does not commit The Government to issue a solicitation or ultimately award a contract or purchase order for this requirement. The Government is not liable to pay for or reimburse any companies or entities that respond to this announcement for any costs incurred for preparing responses to this notice.

The Portsmouth Naval Shipyard is conducting market research to find any potential sources that can provide the rental/lease of a Temporary Desiccant Climate Controlled Unit (DCCU) System in accordance with the statement of work and schedule below.

***PLEASE PROVIDE ALL INFORMATION REQUESTED***

Temporary DCCU System

Period of Performance Weeks

Base: 12/14/2026 – 12/12/2027 52

Option 1: 12/13/2027 - 10/15/2028 44

Option 2: 10/16/2028 - 11/12/2028 4

STATEMENT OF WORK

1. SCOPE

1.1. Portsmouth Naval Shipyard (PNSY) is seeking to lease a Desiccant Climate Controlled Unit (DCCU) system to provide dry and tempered process air for conditioning various spaces used for industrial applications. The system must include multiple DCCU’s, a chiller, chilled water pump, chilled water hose manifolds, hose assemblies as well as the associated onboard controls to operate both the chilled water system and DCCU’s. The intent of the chiller, pump, hose assemblies, manifolds and ancillary components is to establish a temporary chilled water system which serves all of the DCCU’s pre-cooling and post-cooling coils. All equipment conveying air to and from the industrial space must be pre-wired with remote E-Stop capability in order to provide a means to secure airflow in the event of an emergency response.

Each DCCU and Chiller must be frame/skid mounted and meet the lifting & handling requirements as defined in the specification.

2. REFERENCES

2.1. Issues of Publications - The following documents in effect on the date of this requested proposal is a part of this specification to the extent applicable, or as specified herein. Within the specification, they shall be referred to by their basic designation only.

2.1.1. Government

2.1.1.1. General Specification For Integral Lifting Attachment Design

2.1.1.2. US Federal standard A-A-59326: Standard for cam action couplings.

2.1.2. Nongovernment

2.1.2.1. ARI Standard 410

2.1.2.2. ASHRAE: Handbook of Fundamentals

2.1.3. Order of precedence - In the event of conflict between the text of this specification and that of the references cited above, the text of this specification shall take precedence. Nothing in this specification, however, shall supersede applicable laws or regulations unless a specific exemption has been obtained.

3. TECHNICAL REQUIREMENTS

3.1. Component List- The vendor is required to bid on a single equipment list, 3.1.1 or Equipment Alternate 3.1.2. The primary difference between these two equipment lists is the quantity & capacity of each DCCU, as well as the chilled water hose assemblies for the chilled water distribution. Both equipment lists provide the same dehumidification capacity and are considered technically equivalent.

The vendor is able to choose which equipment package to bid on based upon equipment available in inventory.

3.1.1. Required components are listed below based on 4 DCCU’s at 10,000 CFM each.

PIECE NO. QTY. NAME OF PART PARA NO.

DH-01 thru 04 4 DCCU: 10,000 CFM 3.2 DH-05 1 230 Ton Chiller 3.4 DH-06 1 600 GPM Chilled Water Pump 3.5 DH-07 1000 FT 6 IN Dia Chilled Water Hose 3.6.1 DH-08 6 6 IN Dia. 90 Degree Elbows 3.6.4 DH-09 800 FT 3 IN Dia Chilled Water Hose 3.6.3 DH-10 24 3 IN Dia. 90 Degree Elbows 3.6.6 DH-11 1 6 IN Dia Globe Valve 3.6.7 DH-12 6 Chilled Water Manifold 3.7

3.1.2. Equipment Alternate: Components are listed below based on the vendor’s option of supplying 3 DCCU’s at 15,000 CFM each.

PIECE NO. QTY. NAME OF PART PARA NO.

DH-01 thru 03 3 DCCU: 15,000 CFM 3.3 DH-04 1 230 Ton Chiller 3.4 DH-05 1 600 GPM Chilled Water Pump 3.5 DH-06 1000 FT 6 IN Dia Chilled Water Hose 3.6.1 DH-07 6 6 IN Dia. 90 Degree Elbows 3.6.4 DH-08 300 FT 4 IN Dia Chilled Water Hose 3.6.2 DH-09 8 4 IN Dia. 90 Degree Elbows 3.6.5 DH-10 300 FT 3 IN Dia Chilled Water Hose 3.6.3 DH-11 8 3 IN Dia. 90 Degree Elbows 3.6.6 DH-12 1 6 IN Dia Globe Valve 3.6.7 DH-13 6 Chilled Water Manifold 3.7

Desiccant Climate Controlled Unit (DCCU)

3.2. 10,000 CFM DCCU

3.2.1. Performance

3.2.1.1. Process Air Flow requirements: 10,000 CFM @ 12 inches External Static Pressure

3.2.1.2. Process Air Fan: Fan curve capable of delivering specified flow and pressure, installed with TEFC Premium Motors, and VFD controlled

3.2.1.3. Total Cooling capacity: 70 Tons Nominal

3.2.1.4. Minimum Moisture Removal Rate: 515 Lbs./Hr Total [ Pre-Coiling Coil 218 Lbs./Hr] [Desiccant Wheel 297 Lbs./Hr]

3.2.1.5. Moisture Removal Rate Basis: [84°F EDB / 73.5°F EWB & 75°F LDB / 17% RH]

3.2.1.6. Post Heater requirements: 232 KW Electric heating element, thermostatically controlled to discharge air temperature set point.

3.2.1.7. Pre Cooling Requirement: 42.8 Tons = 103 GPM @ 10°F ΔT, based on 45°F entering chilled water temperature.

3.2.1.8. Post Cooling Requirement: 24.6 Tons = 59 GPM @ 10°F ΔT, based on 45°F entering chilled water temperature.

3.2.1.9. Process Air inlet Filtration: Moisture Separator / Demister type filtration for purging 98% of the moisture. Paper or fibrous filtration media is not acceptable.

3.2.1.10. Post Cooling Coil thermostatically controlled to discharge air temperature set point

3.2.2. Physical Attributes

3.2.2.1. Maximum Dimensions 20’10” x 7’4” x 9’3” [L x W x H] Maximum Weight: 16,450 Lbs.

3.2.2.2. All Components much be fully integrated within single housing.

3.2.2.3. Process air outlets: Quantity of two at 20” Dia. Each

3.2.2.4. Process air returns: Quantity of two at 20” Dia. Each

3.2.2.5. Pre Cooling Coil male & female 3 IN Dia. quick disconnect fittings meeting the requirements defined in reference 2.1.1.2.

3.2.2.6. Post Cooling Coil male & female 3 IN Dia. quick disconnect fittings meeting the requirements defined in reference 2.1.1.2.

3.2.2.7. Pre and post chilled water coils must have manual air bleed valves to assist with the initial filling of the chilled water loop.

3.2.3. Electrical Requirements

3.2.3.1. Electrical Power Requirements: 2 Circuits at [460 Volt AC / 3 Phase / 400A] each

3.2.4. Steam Requirements

3.2.4.1. Steam Requirements: 100 PSIG @ 338°F; 1 ½” FNPT

3.2.4.2. Condensate drain line must be fitted with a steam trap rated to a minimum 150 PSI

3.2.5. E-Stop

3.2.5.1. DCCU Unit must be pre-wired for and compatible with a remote E-Stop switch (Remote Emergency Stop Switch). This will enable the air handler to be shut down in response to an emergency condition where airflow needs to be secured. Vendor shall route all E-stops to a central location at Topside Watch where all air handling equipment can be secured.

3.2.6. Desiccant Reactivation Requirements

3.2.6.1. Reactivation Air Flow Requirement: 3100 CFM

3.2.6.2. Fan curve and static pressure requirements need to be sized appropriately to overcome pressure drop of all internal components, heating coils and desiccant wheel.

3.2.6.3. Electric and steam reactivation required, steam being the primary reactivation heat source and electric serving as a backup heat source.

3.2.6.4. Reactivation steam coil: 635 MBH, 1½" FNPT × 2EA with steam trap.

3.2.6.5. Electric Reactivation heat: 186KW

3.3. Equipment Alternate: 15,000 CFM DCCU

3.3.1. Performance

3.3.1.1. Process Air Flow requirements: 15,000 CFM @ 10 inches External Static Pressure

3.3.1.2. Process Air Fan: Fan curve capable of delivering specified flow and pressure, installed with TEFC Premium Motors, and VFD controlled

3.3.1.3. Total Cooling capacity: 100 Tons Nominal

3.3.1.4. Moisture Removal Rate: 669 Lbs./Hr Total [ Pre-Coiling Coil 250 Lbs./Hr] [Desiccant Wheel 419 Lbs./Hr]

3.3.1.5. Moisture Removal Rate Basis: [80°F EDB / 71°F EWB & 75°F LDB / 17% RH]

3.3.1.6. Post Heater requirements: 312 KW Electric heating element, thermostatically controlled to discharge air temperature set point.

3.3.1.7. Pre Cooling Requirement: 50.8 Tons = 170 GPM @ 10°F ΔT, based on 45°F entering chilled water temperature.

3.3.1.8. Post Cooling Requirement: 32.1 Tons = 93 GPM @ 10°F ΔT, based on 45°F entering chilled water temperature.

3.3.1.9. Post Cooling Coil thermostatically controlled to discharge air temperature set point.

3.3.1.10. Process Air inlet Filtration: Moisture Separator / Demister type filtration for purging 98% of the moisture. Paper or fibrous filtration media is not acceptable.

3.3.1.11. Cooling coils shall be hydrostatically tested per section 4.4.

3.3.2. Physical Attributes

3.3.2.1. Maximum Dimensions 20’10” x 8’4” x 10’1” [L x W x H] Maximum Weight: 18,800 Lbs.

3.3.2.2. All Components much be fully integrated within single housing.

3.3.2.3. Process air outlets: Quantity of three at 20” Dia. Each

3.3.2.4. Process air returns: Quantity of three at 20” Dia. Each

3.3.2.5. Pre Cooling Coil male & female 4 IN Dia. quick disconnect fittings meeting the requirements defined in reference 2.1.1.2.

3.3.2.6. Post Cooling Coil male & female 3 IN Dia. quick disconnect fittings meeting the requirements defined in reference 2.1.1.2.

3.3.2.7. Pre and post chilled water coils must have manual air bleed valves to assist with the initial filling the chilled water loop.

3.3.3. Electrical Requirements

3.3.3.1. Electrical Power Requirements: 2 Circuits at [460 Volt AC / 3 Phase / 400A] each

3.3.4. Steam Requirements

3.3.4.1. Steam Requirements: 100 PSIG @ 338°F; 1 ½” FNPT

3.3.4.2. Condensate drain line must be fitted with a steam trap rated to a minimum 150 PSI.

3.3.5. E-Stop

3.3.5.1. DCCU Unit must be pre-wired for and compatible with a remote E-Stop switch (Remote Emergency Stop Switch). This will enable the air handler to be shut down in response to an emergency condition where airflow needs to be secured. Vendor shall route all E-stops to a central location at Topside Watch where all air handling equipment can be secured.

3.3.6. Desiccant Reactivation Requirements

3.3.6.1. Reactivation Air Flow Requirement: 4200 CFM

3.3.6.2. Fan curve and static pressure requirements need to be sized appropriately to overcome pressure drop of all internal components, heating coils and desiccant wheel.

3.3.6.3. Electric and steam reactivation required, steam being the primary reactivation heat source and electric serving as a backup heat source.

3.3.6.4. Reactivation steam coil: 792 MBH, 1½" FNPT × 2EA Inlet; ¾” Condensate drain with steam trap.

3.3.6.5. Electric Reactivation heat capacity: 232KW

3.4. 230 Ton Air Cooled Chiller

3.4.1. Nominal operating capacity of 230 Ton heat rejection, air cooled chiller

3.4.2. Actual operating capacity ≥215 Ton heat rejection @ 95°F Ambient conditions

3.4.3. Design operating chilled water flowrate of 600 GPM

3.4.4. Chilled water discharge temperature set point: 42°F

3.4.5. Chiller must be compatible with pump performance curve

3.4.6. Chiller must contain ≥4 compressors and refrigerant circuit loops

3.4.7. Must provide inlet and outlet chilled water temperature monitoring. Temperature gauges must provide a minimum resolution of 1 DEG F over a minimum operating range from 30 DEG F to 80

DEG F.

3.4.8. Chilled water outlet must be fitted with a flowmeter rated to 150 PSI providing a minimum accuracy of 1% of reading over a minimum range from 100 to 800 GPM and minimum resolution of 1 GPM. Reference Section 4.7.

3.4.9. Chilled water inlet and outlet must be adapted to 6 IN diameter non-ferrous, non-galvanized, metal cam and groove quick disconnect fittings meeting the requirements defined in reference 2.1.1.2.

3.4.10. Chiller controls and interface must provide a display allowing the end user to jog through current and historical performance data. This includes system performance data, record and log system parameters, as well as log system errors during an equipment failure.

3.4.11. Chiller must have a low flow switch and not pressure differential verification as a means for low flow cutoff

3.4.12. Chiller electrical requirements: 460 VAC, 3 PH, 60HZ, Maximum Full Load Amps 400A

3.4.13. Chiller must be operated from a single 460 V, 3 Phase AC power source. Any lower voltage power requirements for controls and/or metering equipment must be met using a vendor supplied integral transformer.

3.5. Pump and Motor Assembly

3.5.1. Pump must nominally provide 600 GPM at 100 feet of head

3.5.2. Pump may be integral to Chiller unit or may be a stand-alone unit where the inlet and outlet piping must be adapted to 6” diameter non-ferrous, non-galvanized, metal cam and groove quick disconnect fittings meeting the requirements defined in reference 2.1.1.2.

3.5.3. Pump must be fitted with differential pressure gauges rated to from 0 to 150 PSI. If the maximum pump discharge exceeds 150 PSI, the gauge must be rated for 20 PSI above the maximum discharge head pressure.

3.5.4. Equipment shall be hydrostatically tested per section 4.4.

3.5.5. Low speed 1750 RPM Electric motor to operate on 460 VAC, 3 PH, 60 HZ

3.6. Accompanying Hoses Assemblies, & Fittings

3.6.1. Chilled water non-collapsing or collapsible suction/discharge hose, 6 IN diameter, supplied in lengths not to exceed 25 FT, male x female cam and groove quick-disconnect fittings meeting the requirements defined in reference 2.1.1.2. Hose assembly must be rated to 150 PSI working pressure. Total length specified in table 3.1.1 or alternate equipment selection table 3.1.2.

3.6.2. Chilled water non-collapsing or collapsible suction/discharge hose, 4 IN diameter, supplied in lengths not to exceed 25 FT, male x female cam and groove quick-disconnect fittings meeting the requirements defined in reference 2.1.1.2. Hose assembly must be rated to 150 PSI working pressure. Total length specified in table 3.1.1 or alternate equipment selection table 3.1.2.

3.6.3. Chilled water non-collapsing or collapsible suction/discharge hose, 3 IN diameter, supplied in lengths not to exceed 25 FT, male x female cam and groove quick-disconnect fittings meeting the requirements defined in reference 2.1.1.2. Hose assembly must be rated to 150 PSI working pressure. Total length specified in table 3.1.1 or alternate equipment selection table 3.1.2.

3.6.4. 6 Inch diameter Elbows, fitted with non-ferrous, non-galvanized, metal male x female cam and groove quick-disconnect fittings meeting the requirements defined in reference 2.1.1.2. Assembly must be rated to 150 PSI working pressure. Total quantity specified in table 3.1.1 or alternate equipment selection table 3.1.2.

3.6.5. 4 Inch diameter Elbows, fitted with non-ferrous, non-galvanized, metal male x female cam and groove quick-disconnect fittings meeting the requirements defined in reference 2.1.1.2. Assembly must be rated to 150 PSI working pressure. Total quantity specified in table 3.1.1 or alternate equipment selection table 3.1.2.

3.6.6. 3 Inch diameter Elbows, fitted with non-ferrous, non-galvanized, metal male x female cam and groove quick-disconnect fittings meeting the requirements defined in reference 2.1.1.2. Assembly must be rated to 150 PSI working pressure. Total quantity specified in table 3.1.1 or alternate equipment selection table 3.1.2.

3.6.7. 6 Inch diameter globe valve with male x female cam and groove quick-disconnect fittings, and pressure gauges installed on each side of the valve assembly so differential pressure can be measured to balance the primary chilled water loop.

3.6.8. All connectors must contain New O-ring gaskets of proper thickness to prevent leaks.

3.6.9. Globe valve differential pressure gauges range: 0-25 PSIG

3.6.10. The Globe Valve Assembly requires two 6-inch diameter jumper length 5 FT ± 2FT non-ferrous, non-galvanized, metal male x female cam and groove quick-disconnect fittings hose assemblies meeting the requirements defined in reference 2.1.1.2. Assembly must be rated to 150 PSI working pressure.

3.6.11. All hoses and fittings shall be hydrostatically tested per section 4.4.

3.7. 4 Way Cross Manifold

3.7.1. The central feature of the manifold is a metal 6-inch diameter 4-way Cross fitting (6"Ø × 4 ╬).

3.7.2. On two opposing ends shall be a six-inch to four-inch diameter reducing fittings.

3.7.3. Each of the two four-inch diameter legs shall have a four-inch diameter valve.

3.7.4. The two four-inch diameter valves shall terminate in a Female camlock w/ Plug. Fittings must meet the requirements defined in reference 2.1.1.2. Assembly must be rated to 150 PSI working pressure.

3.7.5. One of the six-inch diameter legs shall terminate as a Female camlock w/ Plug and the opposing six-inch diameter leg shall terminate as a Male camlock w/ Cap. Fittings must meet the requirements defined in reference 2.1.1.2. Assembly must be rated to 150 PSI working pressure.

3.7.6. The Plugs and Cap shall be a Hydrostatic type vice a Cleanliness type so as to withstand test pressure.

3.7.7. The entire assembly shall be mounted on a stackable Lifting and Handling foundation. When deployed, the 4-way Cross manifolds shall be inversely stacked as Supply & Return paired unit to save space

3.7.8. Transition fittings to be provided by the vendor for attachment to the 4-way Cross style Universal Manifold to enable 3” Dia. hose connections, 4” Dia. hose connections and 6” Dia. Primary chilled water loop hose connections. Fittings must meet the requirements defined in reference 2.1.1.2.

Assembly must be rated to 150 PSI working pressure.

3.7.9. All manifolds and fittings shall be hydrostatically tested per section 4.4.

4. NOTES:

4.1. Chilled Water System:

This System includes all equipment to: (a) produce chilled water via a Chiller with integral built-in pump or stand-alone pump; (b) pressurizes the chilled water (via a built-in pump or a separate pump module); and (c) transports the chilled water via hose assemblies. The pump (motor & impeller) shall be a matched set and shall be a Low Speed (LS i.e. ~1750 rpm) pump capable of delivering the specified flow rate at 100 FT Head.

The Chiller rental fee shall be for the Chiller, flow meter and temperature gauges. The Pump rental fee shall include pressure gauges, hose assemblies, meters, adapters, and any independent Pump Module(s) for pressurizing the chilled water.

4.2. Chiller Capacity & Utilities:

4.2.1. Cooling: The primary utility for the Chiller shall be all electric and air-cooled. The minimum nominal chilled water capacity shall be as indicated with the actual capacity, based on an ambient temperature of 95°F dry bulb with an Entering Water Temperature (EWT) of 52°F and a Leaving Water Temperature (LWT) of 42°F, to be not less than 5% of the desired nominal capacity. The unit capacity shall not be greater than one-third above (+⅓) the minimum specified capacity and shall be able to run continuously at one-quarter of that unit's stated capacity.

4.2.2. Flowrate: The pump shall have a minimum specified flowrate of 2.4 gallons per minute (gpm) per ton of minimum cooling capacity at a Head Pressure of one-hundred feet (100'). The evaporator shall function at a maximum flowrate of at least 3.6 gpm per ton of cooling capacity and remain functional at a minimum flowrate of a third or less of the maximum flowrate (≤1.0 gpm per ton). The pump shall have the capability of operating albeit being restricted to one-third of the minimum specified flowrate without damage to the pump or to any other chiller component.

4.2.3. Automatic Operation, Regulation, & Controls: The Chilled Water Unit or Chiller Module shall be equipped with an automatic variable capacity control requiring only initial temperature adjustment of from 38 to 60°F by the operator. Refrigeration circuits shall maintain the specified temperature condition while protecting against coil freeze-up with such devices as a thermostatic expansion valve, suction pressure switch, cylinder unloading solenoid valve, freeze fault protection thermostat, Hot Gas Bypass if specified, etc. The unit / modules shall include permanently mounted control board(s) accessible without opening any panels containing temperature thermometer(s) and pressure gauge(s) as necessary for both monitoring and control. The unit / modules shall be completely wired for safety, capacity, and operation such as a power/switch system with circuit breakers, manual/automatic controller, motor overload protection, high/low pressure cut-outs, energy control system, and other essential components. The unit / modules shall be fully controllable under a wide range of loads even though the daily and seasonal ambient temperatures vary greatly.

4.2.4. Design & Component Integration: The Chiller can either be an integrated unit with combined Chiller and pump capable of both refrigerating and pressurizing water, or it may be two discrete components consisting of a Chiller Module and separate Pump Module. The unit or each module shall be rigidly mounted within a single integrated framed structure manufactured as a complete entity to include all devices, accessories, and fittings such as cooling coils, condenser fans, compressor(s), pumps with their motors/starters, evaporator & condenser refrigeration circuits, filters, and other auxiliary components necessary to chill fresh water (potable or treated) and deliver that water to ancillary mechanical equipment via a closed loop with little or no make-up water. The unit / modules shall be designed for continuous operation at minimal loading (i.e. one-quarter of full capacity for refrigeration & one-third of full capacity for pumping) despite extreme ambient conditions (e.g. –10 to +100°F and 0 to 100% RH). Additionally, see 4.14 for lifting and handling requirements.

4.2.5. Cooling: The refrigerant shall be internal to the unit with a quantity sufficient for its capacity. The cooling coils shall conform to reference 2.1.2.1. The condenser(s) shall be air-cooled via fan(s). The chiller shall have a sufficient water storage capacity to run isolated from a make-up water connection.

4.2.6. Energy Efficiency: For energy efficient operation in a fully loaded condition, the Full Load Amperage (FLA) rating for the combined Chilled Water Unit or the FLA summation for a separate Chiller Module plus one Pump Module shall be two and a half amperes or less per ton of actual chilled water capacity.

For energy efficient operation in a partially loaded condition, the Chilled Water Unit or Chiller Module shall be designed, if single compressor, with two or more cylinders, but preferably the unit will have two or more compressors each with its own refrigeration circuit.

4.2.7. Transition: The chilled water end connections on the Chilled Water Unit or the Chiller Module plus the Pump Module where the chilled water "standard" type hose assemblies would connect shall terminate in 6 INCH CAM-LOCK type connections with female fittings on the inlet (supply) and male fittings on the outlet (discharge). Fittings must meet the requirements defined in reference 2.1.1.2.

Assembly must be rated to 150 PSI working pressure.

4.3. Coolant Free: Besides manifolds and hose assemblies that are normally flushed and tested, all machinery conveying chilled water such as: the Chiller, Pump and machines with a chilled water coil; shall arrive with no coolant of any type in its piping (i.e. No Water & No Anti-Freeze).

4.4. Chilled Water Hose Assembly / Manifold Construction / Cooling Coil Hydrostatic Testing: For standard Chilled Water Hose assemblies of six-inch nominal diameter or less, the exterior cover shall be a thick rubber (Buna-N) type material designed as a CHW insulator in which the nominal hose length is twenty-five feet with one male and one female quick disconnect Fittings. All Chilled water connectors / fittings must be quick disconnect style fittings meeting the requirements defined in reference 2.1.1.2.

Chilled Water Hose assemblies shall be non-collapsible and the camlock fittings shall be attached to the hose material via the more secure, newer type, crimp style hose fitting via a single specified diameter, elongated sleeve length and not from the less secure, older type, band clamp style hose fitting via multiple universal diameters, shorter ferrules. Gaskets for couplings shall be pre-installed inside the female coupling(s) of hose assemblies and manifolds. The gasket shall be inspected for presence, tight fit, and lack of deterioration. Gaskets shall not protrude into the waterway. A gasket with a smaller diameter than that of the recess can cause a leaky connection when pressure is applied. Hose/manifold/valve assemblies and all cooling coils shall be hydrostatically tested with new hose gaskets for Strength and Tightness and/or Valve Seat Leakage by an independent (of the Contractor) and certified Vendor to a minimum of 150 psig for five minutes and visually inspected and/or internal valve leakage measured while pressurized.

Hoses/manifolds/valve assemblies shall have a banded identification (ID) tag or label attached to the assembly displaying the hydrostatic test results. (CDRL A006, B006, C006)

4.5. Phase Rotation: To prevent or identify an out-of-phase electrical power situation, three-phase machines shall include either: (a) a reverse phase relay and/or meter that identifies an out-of-phase condition and prevents operation especially applied to complex machinery in which such a condition could cause damage or (b) an arrow prominently displayed at an appropriate location on the machine's housing to indicate the proper direction of shaft rotation with the ability to observe a portion of the shaft after a momentary application of power (a.k.a. jog or bump). A reverse phase relay is not required nor desired for VFD motors, however, the VFD shall have a jog button so as to verify correct rotation.

4.6. Supplemental Equipment: For the protection and cleanliness of the machinery components, all chilled water connection points shall be shipped with plug/cap fittings.

4.7. Hydronic Flow Meter: Attached to the Chiller and its associated pump shall be a continuous reading liquid flow meter, preferably, in-line with flow. The type of meter may be Electronic Metering or Axial

Turbine. The physical positioning of the instrument shall downstream of the Chiller immediately after its discharge. The flow meter assembly shall be rated for 150 psig; dimensioned for the heat exchangers nominal 3-inch diameter pipework; and constructed for accuracy as described below. The instrument shall be calibrated by a licensed Metrology Laboratory within five years of its scheduled delivery with certified calibration test results both accompanying the flow meter assembly. (CDRL A007, B007, C007)

If the flow meter is an Axial Turbine type (e.g. McCrometer Model MG100 / MS100 -or- equivalent) with no factory installed straightening vanes, then the entire flow meter assembly shall be constructed so as to provide straight lengths of pipe to the inlet of the instrument housing of at least ten pipe diameters and the outlet of the instrument housing of at least two pipe diameters, unless the manufacturer requires an even greater linear distance. Since the entire Axial Turbine flow meter assembly with no factory installed straightening vanes could be four feet in length, a steel stand would be required for mounting the axial turbine flow meter assembly horizontally with the meter on top so as to meet lifting and handling requirements. This shall be integral with the heat exchanger and pump assembly. Although straightening vanes could reduce the length of the Axial Turbine flow meter assembly by cutting in half the number of pipe diameters upstream to five, a L&H stand would still be required.

4.8. Desiccant Climate Controlled Unit & Moisture Removal Rates: The Vendor shall provide the Moisture Removal Rate (MRR) for just the Desiccant wheel in either pounds per hour (lb/hr) or gallons per day (gal/dy) and state the basis for that computation at an ambient temperature (Dry Bulb i.e. °F) and ambient humidity (Wet Bulb in °F or Relative Humidity as a % or Humidity Ratio in gr/lb – grains of moisture per pound of dry air). The Vendor shall provide the Dehumidification system Moisture Removal Rate (MRR) which includes the Pre-Cooling Coil as well as the Desiccant wheel, for conditions at Portsmouth, NH Summer DB / WB 2½% = 86°F / 73°F. See reference 2.1.2.2. ASHRAE: Handbook of Fundamentals, Weather Data and Design Conditions, Climatic Conditions for United States and Canada provides data as follows for Portsmouth, NH (PEASE). Section 4.9.1 lists the acceptable Desiccant wheel only Moisture Removal Rates for three different data points on the Psychrometric Chart dependent on the particular Original Equipment Manufacturers (OEM) tested or published criterion.

4.9. DCCU Capacity & Utilities:

4.9.1. Moisture Removal: As a stand-alone unit, the DCCU shall be capable of delivering processed air at 0°F dew point or lower when the ambient conditions approach saturation at a temperature of 75°F.

The minimum rate for moisture removal at the specified full rate of airflow is based on ambient conditions as synopsized below of either:

{ 75 degrees Fahrenheit at 50% Relative Humidity (75°F @ 50% RH) } or

( 80 degrees Fahrenheit at 60% Relative Humidity (80°F @ 60% RH) ) or

[ 90 degrees Fahrenheit at 120 grains per pound of dry air Absolute Humidity (90°F @ 120 gr / lb

AH) ]

4.9.2. Reactivation: The type of utility for the reactivation heater (e.g. electricity or steam) shall be as specified in sections 3.2.4 or 3.3.4.

4.9.3. Airflow: An integrated blower (air-handler) is required for independent operation of the unit. With the blower operating at full speed, the airflow in cubic feet per minute (cfm) combined with either the fan's external Total Static Pressure (TSP) in inches of Water Gauge (WG) shall meet the performance stated in sections 3.2 or 3.3.

4.9.4. Compatibility: The DCCU shall be inclusive of all associated temperature conditioning coils designated to be to serve as pre-treatment and downstream post-treatment to the desiccant wheel.

4.9.5. Control: The unit shall include a permanently mounted control board accessible without opening any panels with temperature thermometer(s) and pressure gauge(s) as necessary for monitoring and control. The unit shall be completely wired for safety, capacity, and operation such as a power / switch system with circuit breakers, manual / automatic controller, motor overload protection, high / low pressure cut-outs, energy control system, and other essential components. The unit shall be fully controllable under a wide range of loads even though the diurnal and seasonal ambient temperatures vary greatly. All DCCU equipment must be pre-wired for and compatible with a remote E-Stop Switch (Remote Emergency Stop Switch). This will enable the air handler / DCCU to be shut down in response to an emergency condition where airflow needs to be secured. Vendor shall route all E-stops to a central location at Topside Watch where all air handling equipment can be secured.

4.9.5.1. Moisture Removal: The reactivation wheel shall be capable of being manually shut off and still be able to operate the process air blower.

4.9.5.2. Airflow: The unit shall incorporate Variable Frequency Drive (VFD) control for the process air blower so that the air-handler shall be capable of adjusting the airflow to 30% of the maximum specified airflow.

4.9.6. Design & Component Integration: : The unit shall be rigidly mounted within a single integrated framed structure manufactured as a complete entity to include all devices, accessories, and fittings such as the desiccant wheel, desiccant driver, reactivation heater, energy control system, motors, filters, and other auxiliary components necessary to dehumidify ambient air and deliver that air to ancillary mechanical equipment. The unit shall be designed for continuous operation despite extreme ambient conditions (e.g. –10 to +100°F & 0 to 100% RH). The desiccant dryer shall be an adsorption type wheel with a single desiccant rotary structure. Desiccant wheel matériel can be either the former titanium silica-gel or the more recent zeolite or even a more advanced super adsorbent Polymer, but not the older more problematic lithium chloride.

4.9.7. Filtration: The air to be processed shall be pre-filtered and its filtration efficiency shall be 30% or greater. The unit shall be delivered with all clean (reusable) and/or all new (replaceable) filters. The filters shall be of the correct dimension and in sufficient quantity to completely fill the design space of the filter rack(s) with no discernible gaps. Prior to start-up, the Vendor shall demonstrate that all reusable filters are clean & replaceable filters are new and are properly installed. For dehumidifiers, the air to be filtered is at or near the intake(s) to the Process Air Inlet(s).

4.9.8. Supplemental Equipment: For the protection and cleanliness of the machinery components, all air and water/steam connection points shall be shipped with sheet metal covers (air) and plug/cap fittings (water/steam).

4.10. Termination Couplers: Process Air outlets for the various ventilation systems shall terminate in nominal twenty-inch diameter openings either by design or by providing the proper reducers. This will allow for the attachment of nominal twenty-inch diameter flexible ducting as provided by either the Vendor and/or the Government. The Vendor shall ensure that the flexible ducting furnished is sized to match the Process Air Inlets and Process Air Outlets such that the ducting can easily fit over the end fittings and/or reducers.

4.11. Process Air Doors or Covers: Air handling machinery conveying Process Air shall include tightly fitting non-detachable doors (preferred) or detachable covers (permitted) for each suction inlet and discharge outlet.

4.12. Construction: Except as noted for a particular machine type, units shall be a single integrated framed structure manufactured as a complete entity to include all devices, accessories, and fittings necessary to perform the function for which it was designed. Each unit shall be capable of continuous, year-round, outdoor, unmanned operation even at minimal loading while exposed from inclement to extremely harsh weather (e.g. deep snow, strong & gusty winds, and/or heavy rain) and varied ambient conditions (–10 to +110°F & 0 to 100% RH). Machines shall meet State and federal requirements for its type such as the National Electrical Code (NEC) for electrical devices / components and the American Society of Mechanical Engineers (ASME) for pressurized vessels / components. Machines shall be modular in design so as to act as a stand-alone unit; compact so as to fit in the tight confines of a drydock; portable so as to be transported by forklift and then lifted by crane; and ruggedly constructed so as to endure a marine industrial environment. Machines shall be newly manufactured / completely refurbished and factory tested within ten

(10) years.

4.13. Electrical: Electrical components shall conform to a NEMA standard (NEMA 3 or 4) that allows for unsheltered outdoor use of the unit. Each machine shall require only one type / source of electrical power (460 VAC +5% / three-phase / 60 hertz). The type of electrical power required (voltage & amperage) must be clearly indicated on the outside of the equipment, readily detected, and collocated with all other electrical information. The Vendor shall provide the Project Temporary Services Zone Manager with the following details: (i) electrical power type (amperage & voltage); (ii) confirming that the type of electrical connectors for three phase shall be Duraline 4M20; (iii) breaker type/size or recommended capacity for the electrical source; and (iv) whether the machine is furnished with over-current protection. Three phase powered (i.e. 460V) machines shall have panel-mounted male connectors (single Duraline 4M20) for each phase if ≤ 285A (preferred, permits 2/0 cable) or ≤ 385A (minimum, but restricted to 4/0 cable).

4.14. Lifting & Handling:

4.14.1. See reference 2.1.1.1.

4.14.2. Rigging Caution: Pre-Lift inspection, all spaces or voids in which loose matériel may be purposely placed or inadvertently dropped with potential of displacement and then falling during movement or rigging shall have a means of capturing that matériel such as screens, netting, or false floors. For voids in which means to capture the matériel is impractical, an observation port shall be provided for an inspector to visually survey the space or void without use of a ladder, fall protection equipment, or special tooling.

4.15. Noise Requirement: When operating at full speed, noise levels must not be over 105 dB[A] and preferably, 85 dB[A] or less at six feet from the unit or frame unless a quieter noise level is specified. A hearing protection safety placard shall be posted on each machine generating more than 85 dB[A] at the unit's edge or frame.

4.16. Machinery / Equipment Tagging and Markings: Fluid piping inlet(s) / outlet(s) must be clearly marked. Machinery and itemized equipment require tagging to show Project Number / Technical Specification Identification (ID) Number

4.17. Vendor Identification Of Itemized And Ancillary Equipment: The Contractor shall uniquely tag and permanently mark all of its ancillary and itemized equipment / hardware (e.g. manifolds, hose assemblies, pipe fittings, duct adapters, ducting, etc.) so as to differentiate from that owned by either the Shipyard or other Vendors. Tagging alone is sometimes not sufficient. Suggest painting the ferrous metal on hardware and the end fittings on hose assemblies with unique and distinct color(s).

4.18. Dead Front Control Panel or External Controller: Access to basic machinery controls, such as a Dead Front Control Panel or External Controller, shall be such that there is non-exposure to energized "live" electrical circuits or other components regardless of voltage, to include control circuitry, by "a person on the operating side of the equipment".

5. GOVERNMENT FURNISHED MATERIAL (GFM):

5.1. Insulated Duct Work: 20 IN Dia. R-4 flexible duct: 2,700 FT

6. RESPONSIBILITES

6.1. Government

6.1.1. Equipment Technical Evaluation: C230 Engineering

6.1.2. Receipt Inspection: Contractor Officer Representative (COR) & Temporary Service Zone Manager

(TSZM)

6.1.3. Coordination of equipment delivery & returns: COR & TSZM

6.1.4. Schedule equipment service, repair, and training: COR & TSZM

6.2. Contractor

6.2.1. The equipment will be operating around-the-clock under a rigorous deployment performance schedule. Within twenty-four (24) hours of initial notification of the need for repair, the Contractor shall have a knowledgeable and equipped technician on the job site fully prepared to repair the rental equipment. The defective unit(s) shall be repaired within forty-eight (48) hours of initial notification or, if the original defective unit(s) cannot be made operational, replaced within seventy-two (72) hours of initial notification. If the equipment failure is not the fault of the Government, the Contractor shall bear all costs associated with its repair and/or replacement.

6.2.2. The vendor shall provide technical support to PNSY project personnel as required.

6.2.3. Equipment Start-up/ Commissioning Services

6.2.3.1. Contractor must provide start-up and commissioning services to prepare the equipment to be placed into service. This includes but is not limited to the following:

6.2.3.1.1. Pressurizing the system

6.2.3.1.2. Performing leak check of all contractor made connections

6.2.3.1.3. Adjusting setpoint(s) to meet the requirements of this Statement of Work

6.2.3.1.4. Verifying satisfactory operation of all drains installed on equipment

6.2.3.1.5. Troubleshooting/adjudicating any alarm conditions present on start-up (See 6.4)

6.2.3.1.6. Training Government operators in equipment function, control and alarm(s)/indications.

6.2.3.1.7. Installation and routing of all E-Stop components.

6.3. Machinery Quality Checklist (MQC) Objective Quality Evidence (OQE): The Contractor shall submit a Certification Data Report for each machine required to fulfill this statement of work. (CDRL A008, B008, C008)

6.3.1. MQC Report Operational Checklist: The submitted Certification Data Report shall include items such as gaskets, new AHU filters, valves operational, pump suction and discharge pressure gauges, air bleeder valves, pump strainers cleaned, steam traps present, flow meter installation / location, and piping end caps to maintain cleanliness. (CDRL A008, B008, C008) Shall components (such as a flow meter) within a packaged unit configuration (such as a chiller) are found to be non-operational, damaged, etc. the original item is to be replaced or repaired and not substituted with an auxiliary replacement system. The Contractor shall also submit a Flow Meter Calibration Certificate from a Certified Test Laboratory. (CDRL A007, B007, C007)

6.3.2. MQC Report Functional Performance Testing: The vendors shall perform a complete functional performance test of each piece of equipment. This shall include fully testing the equipment’s performance capabilities. The Vendor shall measure and record the performance of the equipment. If the vendor does not have the capability to test the equipment in house, a certified Testing & Balancing agency may be subcontracted by the vendor to complete the functional performance testing of the equipment.

6.3.2.1. Air Handling Units: the equipment shall be powered and all electrical circuits, fuses, contactors & relays, control panel functions, control panel indicators, VFD control verified & fan speed (RPM), filter static pressure drop, motor FLA, rotational verification, heating element performance test, amperage of each heating element stage, thermostatic set point test, cooling coil leak check and pressure test, steam coil leak check and pressure test, Steam trap functional performance test.

6.3.2.2. Pumps: Motor speed verification, rotation verification, dead head test (measure & report total dynamic pressure), valves tested operational.

6.3.2.3. Chillers: the equipment shall be powered and all electrical circuits, fuses, contactors & relays, control panel functions, control panel indicators, flow switch safety interlock function verified, Chiller run load amps, discharge water temperature set point satisfied, system leak check and pressure test.

6.4. Maintenance

6.4.1. Except for daily surveillance checks, the Contractor is responsible for all equipment preventative maintenance and repairs for the duration of the lease. Coordinate maintenance with Shipyard Temporary Service Zone Manager.

6.4.2. The vendor shall provide Preventative Maintenance (PM) schedules which are equipment specific. The PM shall meet all requirements determined by the Original Equipment Manufacturer (OEM). (CDRL A004, B004, C004). All PMs conducted shall include a technical service report identifying component, maintenance conducted, date, and next scheduled PM date. (CDRL A005, B005, C005)

6.4.3. In addition to providing routine preventative maintenance, the vendor shall provide a service technician on a weekly basis for the duration of the lease to perform weekly equipment inspections. Weekly equipment inspections shall consist of checking all functional operating parameters of each individual piece of equipment. This shall include but is not limited to: verifying correct equipment performance and operation, checking for diagnostic or trouble codes, measuring discharge air temps, assessing DH equipment reactivation air performance, verify amperage of all electric heating coils, verification of chilled water coils performance, verify pump operation, motor speed, and differential pressure, verify HVAC process air fan speeds, DH process air discharge air temperature and RH performance, Chiller performance operation, etc. Weekly equipment inspections shall include a technical field report. (CDRL A005, B005, C005)

6.4.4. The vendor shall provide a knowledgeable service technician to cover the repair of all equipment deficiencies and malfunctions. The response time for the repair or replacement of deficient equipment shall meet the requirements defined in section 6.2.1.

6.5. Training

6.5.1. The Contractor is responsible for and shall provide training sessions to Shipyard Personnel on the operation & setup of all equipment. Training shall be available throughout the duration of the lease to accommodate equipment swap out and seasonal equipment operation.

6.6. Deliverables – In addition to all required equipment, technical documentation shall also be provided electronically to the project COR and Engineering. Minimally, the documentation shall consist of:

6.6.1. Lifting & Handling the equipment with its padeye(s) Certification (CDRL A001, B001, C001)

6.6.2. Points of contact with telephone numbers for requesting emergency repair regardless of the time or type of day. (CDRL A002, B002, C002)

6.6.3. Technical Instructions (TIs) such as an Operations & Maintenance Manual, Controls Manual, and/or Mechanical/Electrical Manual with Schematics. (CDRL A003, B003, C003)

6.6.4. Operating Instructions, if not in the TI. (CDRL A003, B003, C003)

6.6.5. Preventative Maintenance Schedules. (See section 6.4.2) (CDRL A004, B004, C004)

6.6.6. MQC’s (See section 6.3) (CDRL A008, B008, C008)

6.6.7. Equipment Data Sheet (EDS). (CDRL A003, B003, C003)

6.6.8. Hydrostatic Pressure Test Reports. (CDRL A006, B006, C006)

7. DELIVERY / ACCEPTANCE / RETURN

7.1. Delivery - The machinery shall be fully charged, fully assembled, ready-to-use, and in first-class operating condition. Machines shall be functionally tested prior to its delivery and all leased products, including machine / equipment / ancillary component accompanying machine, must fully function as intended. The machinery with its support equipment shall be delivered to the site on or prior to the request date. It is incumbent and it is the responsibility of the Contractor to either confirm or coordinate the date and time of delivery prior to each shipment via the Point-of-Contact (POC) as designated on the Contract and/or the Contracting Officer's Representative (COR). The Government can provide forklift services for removing machinery from Vendor’s transport during work hours. Documentation with Shipyard copies shall accompany each delivery.

7.2. Acceptance - Upon satisfactory completion of inspection and test of the equipment, the authorized Government Representative (Portsmouth Naval Shipyard, Code 990 Equipment Manager) will sign and forward the acceptance document(s) to Code 420 for completion. Unloading of equipment from Vendor’s transport does not signify acceptance.

7.3. Start Up - Upon delivery, the Contractor shall: (i) provide start up and commissioning of the equipment to verify its operability per SOW section 6.2.3; (ii) provide all deliverables as required per SOW section 6.6;

and (iii) train designated Shipyard personnel on how to properly run the equipment to include its operation, control, daily checks, & service contacts per SOW section 6.2.2; 6.5.

7.4. Security - To be allowed onto a government Shipyard, personnel must be US citizens and in possession of appropriate personal identification. Proof of US citizenship may be necessary and can be required for access to the drydock. Allowable documentation of US citizenship is an official government issued Certificate of Birth or Naturalization (w/ raised seal & not a photocopy) or a US passport. Vehicular access requires a non-expired personal REAL ID Driver’s License and appropriate vehicle identification or registration. The transport vehicle must have the company’s name / logo prominently displayed. To gain access to the drydock environs, personnel must be escorted and possess / wear their own personal safety gear.

7.5. Return - The Government will provide a temporary storage location convenient for Contractor pick-up.

The Government will notify the Contractor as well as the Contracting Office as to when the rental Item has been released and is available for pick-up. The Contractor shall be responsible for shipping. The Government can provide forklift services during work hours for placing the equipment onto the vendor’s transport.

8. GENERAL

8.1. Response to Request - As part of the response to this request, descriptive literature shall be furnished in sufficient detail to show that the proposed design will meet these specifications. Vendor submittals shall include brochures of the model being submitted, assembly sketches with critical dimensions, sketches (with dimensions) of all tooling being provided, statements of compliance with specification, and performance statements with special instructions. Supporting information shall be organized and packaged by unit. If supporting information includes multiple models the vendor shall clearly state model number of proposed unit and redact all information not applicable to proposed unit.

Capable vendors are encouraged to submit the following information to Christie Ashcraft via email (christie.j.ashcraft.civ@us.navy.mil) by the notice close date and time:

Company Name:

Company size: Small or Large

Address:

Point of Contact:

Email:

Phone Number:

Company CAGE Code:

Please email your responses to the attention of Christie Ashcraft via email (christie.j.ashcraft.civ@us.navy.mil) no later than 12:00 PM EST on Tuesday June 23, 2026. All responses shall be limited to 10 pages or less. Pricing information should NOT be submitted at this time.