SPECIAL NOTICE
41 -- PURCHASE CHILLER FOR ROME CBOC (VA-22-00075960)
- Notice Date
- 8/18/2022 11:59:52 AM
- Notice Type
- Special Notice
- NAICS
- 238220
— Plumbing, Heating, and Air-Conditioning Contractors
- Contracting Office
- 242-NETWORK CONTRACT OFFICE 02 (36C242) ALBANY NY 12208 USA
- ZIP Code
- 12208
- Solicitation Number
- 36C24222Q0997
- Archive Date
- 09/17/2022
- Point of Contact
- Morgan.Weeks1@va.gov, Morgan Weeks, Phone: (607) 664-4708
- E-Mail Address
-
Morgan.Weeks1@va.gov
(Morgan.Weeks1@va.gov)
- Awardee
- null
- Description
- This is a notice of intent to award a sole source contract and is not a request for quotes. The Department of Veterans Affairs Rome Outpatient Clinic intends to award a Federal Supply Schedule, Fixed Price (FFP), brand name only, sole source action to; Name of Contractor: Johnson Controls, Inc (GS-07F-190CA) Street Address: 507 E. Michigan St M-93 City, State, Zip: Milwaukee, WI 53202-5202 The objective of this action is the procurement of 265 ton Hermetic Centrifugal Liquid Chiller. Market research has concluded York (subsidiary for Johnson Controls) is the only manufacturer to meet the compatibility standardization requirements of Rome outpatient clinic. The Veterans Health Administration prohibits the use of gray market items in their Medical Centers. Gray market items are considered to be items outside of the original equipment manufacturer s intended distribution channels. Packaged Hermetic Centrifugal Liquid Chiller Specification Size: 265 Tons York Model Number: YZ-MA033AN030P033NAS (Magnetic bearings with R-1233zd(E) refrigerant) Part 1 General 1.01 SYSTEM DESCRIPTION A. Microprocessor-controlled liquid chiller shall use a single stage, semi-hermetic centrifugal magnetic bearing compressor with Variable Frequency Drive (VFD) using refrigerant R-1233zde. Chiller shall operate with 460 volts 3 phase 60 Hz power. 1.02 QUALITY ASSURANCE A. Chiller performance shall be rated in accordance with the latest edition of AHRI Standard 550/590 and shall be AHRI stamped. B. Equipment shall be in compliance with ANSI/ASHRAE 15. C. Cooler and condenser refrigerant side shall include ASME U stamp and nameplate certifying compliance with ASME Section VIII, Division 1 code for unfired pressure vessels. D. Chiller shall be designed and constructed to meet UL requirements and have labels appropriately affixed. E. Centrifugal compressor impellers shall be dynamically balanced and over-speed tested by the manufacturer at a minimum of 120% design operating speed. Each compressor assembly shall undergo a mechanical run-in test to verify vibration levels, and temperatures are within acceptable limits. Each compressor assembly shall be proof tested at a minimum 204 psig (1406 kPa) and leak tested at 185 psig (1276 kPa) with a tracer gas mixture. F. Entire chiller assembly shall be proof tested at 204 psig (1406 kPa) and leak tested at 185 psig (1276 kPa) with a tracer gas mixture on the refrigerant side. The water side of each heat exchanger shall be hydrostatically tested at 1.3 times rated working pressure. G. Prior to shipment, the chiller automated controls test shall be executed to check for proper wiring and ensure correct controls operation. H. The chiller and starter/VFD shall be factory wired and tested together to verify proper operation prior to shipment. I. Buy American Act compliant. 1.03 DELIVERY, STORAGE AND HANDLING A. Unit shall be shipped with all refrigerant piping and control wiring factory installed. B. Unit shall be shipped charged with a full charge of refrigerant. C. Unit shall be shipped with firmly attached labels that indicate name of manufacturer, chiller model number, chiller serial number, and refrigerant used. D. Chiller to be shipped to 125 Brookley Road, Rome, NY 13441 1.04 WARRANTY Warranty shall include refrigerant, parts, and labor for one year after start-up or 18 months from shipment, whichever occurs first, except the motor/compressor driveline parts and labor warranty shall be provided for a period of five years from start up or 66 months from shipment, whichever occurs first. 1.05 SUBMITTALS A. Provide manufacturer s Literature and Data on the centrifugal chiller, including motor starters, control panels, and vibration isolators, to include the following: 1. Rated Capacity 2. Pressure drop and rated flow rate on the condenser and evaporator. 3. Efficiency at full load and part load WITHOUT applying any tolerance indicated in the AHRI 550/590 Standard. 4. Refrigerant 5. Accessories 6. Installation Instructions 7. Start-up procedures 8. Wiring diagrams, including factory-installed and field-installed wiring. 9. Sound/Noise data report. Manufacturer shall provide sound ratings. Noise warning labels shall be posted on equipment. 10. Dimensions and weight Part 2 Products 2.01 EQUIPMENT A. General: Chiller shall be factor-assembled and-tested, complete with evaporator, condenser, marine water boxes for condenser and evaporator, compressor, motor, starter, oil heater and cooler, economizer or intercooler, purge system (if required), refrigerant piping, instrumentation and control piping, operating and safety controls mounted on the chiller, and other auxiliaries necessary for safe and proper operation of the unit. Chiller operation shall be fully automatic. Provide chiller utilizing a refrigerant that has an Ozone Depletion Potential (ODP) of less than 0.0004, and a Global Warming Potential (GWP) less than 5.0, and with an assurance from the manufacturer that the refrigerant has no production phase-out date and no phase out date for equipment that uses that refrigerant. B. Dimensions: The chiller shall not exceed 14 -6 in length, 7 -6 in height, and 6 -1 in width due to physical constraints of the existing mechanical room. C. Heat Exchanger Performance: 265 ton nominal capacity. Part load and full load efficiency ratings of the chiller shall not exceed 0.5373 kw/Ton.R full load efficiency and 0.3254 kw/Ton.R part load efficiency (IPLV.IP) rated using AHRI Standard 550/590. Fluid temperatures and flow rates: Evaporator Entering Water Temperature: 60.0F, Leaving Water Temperature: 44.0F 396.5 gpm nominal, variable between 260 and 1,000 gpm. Pressure drop: 10.0 ft H2O, maximum, at nominal flow rate. Fouling Factor: 0.000100 hr-ft2-degF/Btu Heat Exchanger Type: Falling Film Copper, 0.025 wall thickness, supported every 48 or less, removable from either end. Condenser Entering Water Temperature: 85.0F, Leaving Water Temperature: 94.3F 796.5 gpm nominal, variable between 500 and 1800 gpm. Pressure drop: 11.1 ft H2O, maximum, at nominal flow rate. Fouling Factor: 0.000250 hr-ft2-degF/Btu Heat Exchanger Type: Flooded Tubes: Copper, 0.025 wall thickness, supported every 48 or less, removable from either end. D. Compressor: Single or multistage, having statically and dynamically balanced impeller, either direct or gear driven. Impeller shaft shall be heat-treated carbon steel of sufficient rigidity to prevent whip or vibration at operating speed. Compressor is oil free with magnetic bearings with no lubrication system. Capacity control achieved with variable speed and mechanical flow regulation to provide fully modulating control from maximum to minimum load. The chiller should be able to adjust capacity from 100% to 10% of design without the use of hot gas bypass (HGBP). Plastic is not an acceptable material for internal compressor components. Compressor shall be direct driven with magnetic bearings. The magnetic bearings shall levitate the shaft by actively controlling and monitoring an X, Y, and Z axis digital potion sensor. The compressor shall be capable of coming to a controlled, safe stop in the event of a power failure by utilizing back up power storage to the Magnetic Bearing Control System. The driveline (compressor and motor) and chiller starter shall be individual unit assemblies allowing for independent inspection, service, and repair/replacement. E. Evaporator: Shell-and-tube type, constructed and tested and stamped in accordance with Section VIII D1 of ASME Boiler and Pressure Vessel Code where applicable for working pressure produced by refrigerant used and water system installed, but not less than 1035 kPa (150 psig) waterside working pressure. Shell shall be fabricated of carbon steel and shall have carbon steel tube sheets; drilled and reamed to accommodate the tubes. Tubes shall be externally and internally enhanced individually replaceable and shall be expanded full diameter into tube sheets, providing a leak proof seal. Intermediate tube supports sheets shall be provided as recommended by the manufacturer, but not less than every 48 to minimize tube vibration, stress, and wear. Performance shall be based on a water velocity not less than 1 m/s (3 fps) nor more than 4 m/s (12 fps), and fouling factor of 0.0000176 m2 degrees C (0.0001 hr. sq. ft. degrees F/Btu). Removable marine water box shall be constructed of steel. Design working pressure shall be 1035 kPa (150 psig) pressure tested at 130 percent of working pressure. Water boxes shall have hinges on one end of the heat exchanger. Water nozzle connections shall be flanged. F. Condenser: Shell-and-tube type, constructed, tested, and stamped in accordance with applicable portions of Section VIII D1 of the ASME Boiler and Pressure Vessel Code, where applicable for working pressure produced by the refrigerant used and water system installed, but not less than 1035 kPa (150 psig). Shell shall be fabricated of carbon steel and shall have carbon steel tube sheets; drilled and reamed to accommodate the tubes. Tubes shall be nonferrous metal, externally enhanced, and internally enhanced, individually replaceable, and shall be expanded full diameter into tube sheets, providing a leak proof seal. Intermediate tube support sheets shall be provided as recommended by the manufacturer, but not less than every 48 to minimize tube vibration, stress and wear. Tubes shall fit tightly in the supports to prevent chafing due to vibration or pulsation. Performance of condenser shall be based on a water velocity not less than 1 m/s (3 fps) nor more than 4 m/s (12 fps), and a fouling factor of 0.000044 m2 degrees C (0.00025 hr. sq. ft.) degrees F/Btu. Removable marine water box shall be constructed of steel. Design working pressure shall be 1035 kPa (150 psig); pressure tested at 130 percent of working pressure. Water boxes shall have hinges on one end of the heat exchanger. Water nozzle connections shall be flanged. G. Insulation: Evaporator, suction piping, compressor, and all other parts subject to condensation shall be insulated with 40 mm (1.5 inch) minimum thickness of flexible-elastomeric thermal insulation, complying with ASTM C534. H. Controls, Safeties, and Diagnostics: 1. Controls: Chiller shall be furnished with unit mounted, stand-alone, microprocessor-based controls in NEMA 1 enclosure, hinged and lockable, factory wired with a single point power connection and separate control circuit. The control panel provide chiller operation, including monitoring of sensors and actuators, and shall be furnished with light emitting diodes or liquid-crystal display keypad. a. Following functions shall display as a minimum: i. Date and Time. ii. Outdoor air temperature. iii. Operating set point temperature and pressure. iv. Operating hours. v. Operating or alarm status. vi. Chilled water temperature-entering and leaving. vii. Condenser water temperature-entering and leaving. viii. Refrigerant pressure-condenser and evaporator. ix. Low oil pump pressure. x. High oil supply pressure. xi. Chiller diagnostic codes. xii. Current limit set point. xiii. Number of compressor starts. ix. Purge suction temperature, if low pressure refrigerant is used. x. Purge elapsed time, if low pressure refrigerant is used. b. Control Functions: i. Manual or automatic startup and shutdown time schedule. ii. Control set points for entering and leaving chilled temperatures. iii. Condenser water temperature. iv. Current/demand limit. v. Motor load limit. 2. Safety Controls: Following conditions shall shut down the chiller and require manual reset to start: i. High condenser pressure. ii. High oil temperature. iii. High or low oil pressure. iv. Loss of flow-condenser or chilled water. v. Low chilled water temperature. vi. Low evaporator refrigerant temperature. vii. Sensor malfunctions. viii. Power fault. ix. Extended compressor surge. x. Communication loss between the chiller and its control panel. A signal must be transmitted to Energy Control Center, if provided, for this communication loss and for any abnormal. 3. The chiller control panel shall provide a relay output to initiate system changeover to free cooling. This relay shall be energized upon initiation of free cooling at the chiller control panel. 4. Chillers shall be pre-wired to terminal strips for interlocked to other equipment. 5. Provide contacts for remote start/stop, alarm for abnormal operation or shut down, and for Engineering Control Center (ECC) interface. 6. Chiller control panel shall reside on the ""BACnet network and provide data using open protocol network variable types and configuration properties, BACnet interworking using BACnet/IP or BACnet/MSTP physical data link layer protocol for communication with building automation control system. 7. Auxiliary hydronic system and the chiller(s) shall be electronically interlocked to provide time delay and starting sequence as indicated on control drawings. a. The chiller control panel shall utilize the following components to automatically take action to prevent unit shutdown due to abnormal operating conditions which will perform as follows. i. High pressure switch that is set to 20 psig (adjustable setting) lower than factory pressure switch that will automatically unload the compressor to help prevent a high pressure condenser control trip. One switch is required for each compressor and indicating light shall also be provided. ii. Motor surge pressure that is set at 95% of compressor RLA that will automatically unload the compressor to prevent an over current trip. One protector is required for each compressor and indicating light shall also be provided. iii. Low pressure switch that is set at 5 PSIG above the factory low pressure switch that will automatically unload the compressor to help prevent a low evaporator temperature trip. One switch is required for each compressor and indicating light shall also be provided. iv. In all the above cases, the chiller will continue to run, in an unloaded state and will continue to produce some chilled water in an attempt to meet the cooling load. However, if the chiller reaches the trip-out limits, the chiller controls will take the chiller off line for protection, and a manual reset is required. Once the ""near trip"" condition is corrected, the chiller will return to normal operation and can then produce full load cooling. 8. With variation of +/-10% of design flow per minute, chiller shall be able to maintain +/-0.5 degrees F leaving water temperature control. The chiller must be able to withstand a +/- 30% change in flow rate per minute without unit trip. Variations in the primary flow allow for optimal system efficiency, but the chiller must be able to maintain temperature control to help ensure occupant comfort. 9. The chiller control panel shall provide +/-0.5 degrees F leaving water temperature control during normal operation. The chiller shall provide multiple steps leaving chilled water temperature controller to minimize part load energy use and optimize leaving chilled water temperature control. 10. The chiller control panel shall provide a 2-minute stop-to-start and 5 minute start-to-start solid state timer. I. Electrical Requirements: 1. 460 volt, 3 phase, 60 Hz power 2. Full Load Amps: 201 3. Total Input Power: 142.4 kW 4. Required Minimum Circuit Amperage: No more than 260 Amps. 5. Variable Speed Drive with Circuit Breaker disconnect, 65,000A short circuit capacity per UL 508. J. Start-up: 1. The chiller manufacturer shall provide a factory-trained representative, employed by the chiller manufacturer, to perform the start-up procedures as outlined in the Start-up, Operation and Maintenance manual provided by the chiller manufacturer. 2. Manufacturer shall supply the following literature: a. Start-up, operation and maintenance instructions. b. Installation instructions. c. Field wiring diagrams. d. One complete set of certified drawings. K. Included Factory-Installed Options: 1. Refrigerant Charge: The chiller shall ship from the factory fully charged with R-1233zd(E) refrigerant. No oil due to oil free magnetic bearings. 2. Thermal Insulation: Unit Manufacturer shall insulate the cooler shell, economizer low side compressor suction elbow, motor shell and motor cooling lines. Insulation shall be 3/4 in. (19 mm) thick with a thermal conductivity not exceeding 0.28 (Btu in.)/hr ft2 F and shall conform to UL standard 94, classification 94 HBF. 3. Marine Waterboxes, 150 psig (1034 kPa): Unit manufacturer shall furnish marine style waterboxes on cooler and/or condenser rated at 150 psig (1034 kPa). 4. Flanged Water Nozzles: Unit manufacturer shall furnish standard flanged piping connections on the cooler and/or condenser. 5. Hinges: Unit manufacturer shall furnish hinges on waterboxes to facilitate tube cleaning. This notice of intent to sole source is not a request for quotes; however, all responsible sources may submit a capability statement which shall be considered by the Government. All capability statements must be received by no later than 3:00 PM Eastern Standard Time on August 24, 2022. Responses to be submitted to Morgan Weeks, Contracting Officer at morgan.weeks1@va.gov. A determination by the Government not to compete this proposed contract based on responses to this notice is solely within the discretion of the Government.
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