Attachment B Statement of Need- Chillers.pdf

Attachment B 36C24824Q1433

Statement of Need

Background:

The Lake City VA Medical Center located at 619 S Marion Ave Lake City, Florida has a Brand Name OR Equal requirement to replace a total of three (3) air-cooled chillers. Two (2) Air-Cooled chillers servicing the Operating Rooms in Building 64 and One (1) Air-Cooled chiller servicing building 38. The current Chillers are having major mechanical failures beyond repair.

Objective:

Disconnect and remove two existing OR chillers and three chilled water pumps from their location on the roof of Build 64. Disconnect and remove one chiller from the north side of building 38.

Existing Chillers need to be removed from the site by the contractor and disposed of. The three new Chillers and pumps shall be delivered, installed, tested, commissioned, and put into operation.

Scope:

Site-Visit (See attachment A, page 11) is required to verify utilities, connection points and sizing for all three chillers, plus verify the current roof platform dimensions (OR Chillers), and the current chiller pad for building 38. Disconnect the current three Air-Cooled Chillers, remove from their existing locations, and dispose of old equipment. Install the new Chillers on the platforms or pad where the old chillers were located and connect to the current electrical and chilled water systems.

Connect the chillers, CW pumps to the Siemens BAS system and program.

• Disconnect all existing chillers to include all mechanical and electrical utilities and dispose of existing equipment.

• Deliver three (3) air-cooled chillers and three (3) chilled water pumps.

• Remove all old chillers and pumps install new equipment.

• Two (2) new chillers are to be installed on the old chiller platforms on the roof of Building

64 and install One (1) chiller on the north side of building 38 on the old chiller pad inside the walled chiller area.

• Expand and upgrade the current platform as needed to support the new OR Chillers.

• Expand and upgrade the cement pad as needed to support the new Building 38 Chiller.

• Provide and install High humidity/low evap. insulation.

• Provide and install comprehensive sound package for OR Chillers.

• Provide and install Architectural louvers.

• Provide and install spring isolators (If needed)

• Provide and install new manual isolation valves, gauges, and thermometers on each chillers supply and return piping.

• Provide and install new expansion tanks for OR chillers and insulate.

• Reinsulate all the CW supply and return piping from the Chillers to CW water pumps and

AHU.

• Provide and install three new Chilled Water Pumps and motors for OR chillers. Pumps shall be equivalent to existing pumps.

• Provide and install BACnet MS/TP communications card for each chiller.

• Provide and install new starter / motor controls for each CW pump.

• The contractor reconnects the new chillers to the current chiller water piping.

• Provide and install new electrical disconnect at all Chillers.

• All unit controls shall be housed in an outdoor Nema rated weather tight enclosure.

• Connect chillers and pumps to the Siemens Desigo Building Automated System (BAS).

• Chillers must be operated and monitored via BAS.

• Provide graphics for the chiller in the BAS.

• Provide graphics for the CW pumps in the BAS.

• Provide for chiller alarms in the BAS.

• Test Operation of Chillers

• Ensure the OR Chillers maintain proper chiller water temperature, flow, and differential pressure to provide optimum Chiller performance and maintain the Operating Room temperature and humidity.

• Ensure the Building 38 Chiller maintains proper chiller water temperature, flow, and differential pressure to provide optimum Chiller performance and maintain patient room temperature and humidity.

• Ensure the all the OR CW pumps maintain proper chilled water temperature, flow, and differential pressure to provide optimum Chiller performance and maintain the Operating Room and patient rooms temperature and humidity.

• Put the three Chillers into operation and commission.

• Provide all documentation to the Contracting Officers Representative (COR). Also, provide an electronic version of the documentation including warranties and guaranties.

Salient Characteristics of two (2) OR Chillers Air-Cooled Chillers Shall Be Trane CGAM-70 Or Approved Equal

Unit Overview

Air-Cooled Scroll Packaged Chiller Startup Included - Service must start equipment for warranty to be honored 70 Nominal Tons 460 / 60 / 3 Refrigerant Charge R-454B With factory installed freeze protection Refrigerant isolation valves (discharge valve) ETL Listed to US/Canadian Safety Standard ASHRAE 90.1/CSA C743 - 2019 Compliance AHRI certified.

Factory installed flow switch - set point 60 cm/sec Phase Reversal Protection Grooved pipe connection Factory insulation 1.25" - high humidity/low evaporator temperature Performance based on water.

Lanced aluminum fins Across the line starter/direct online Single point connection main line unit power-ancillary items require other power Circuit breaker-high fault rated control panel.

Enclosure Type UL 60335 Rated for Outdoor Applications BACnet MS/TP Interface With buffer storage tank High A short circuit rating Elastomeric isolators With water strainer factory installed Comprehensive acoustic package

Architectural louvered panels

10-yr parts, labor, and refrigerant warranty whole unit 1-yr crane warranty- (If movement is required)

Evaporator Information

• Evaporator Application

Standard Cooling

• Fouling Factor

0.000100 hr-sq ft-deg F/BTU

• Flow switch set point

Flow switch set point 60 cm/sec

• Flow Rate

Design Flow – 158.3 gpm

VPF Min Flow – 124.8 gpm

• Evap head Loss

11.9 ft H2O

• Fluid Type

Water

• Fluid Temperature

Freeze Point - 32.00 F

Evaporator Entering – 52.00 F

Evaporator Leaving – 42.00 F

• Evap + Strainer Head Loss

18.5 ft H2O

• Construction Features

Configuration - 2 pass evaporator.

Fouling Factor – 0.000100 hr-sq ft-deg F/Btu

Condenser Information

• Unit Application

Wide Ambient

• Ambient Air Temp

95.0 F

• Total Number of fans

Unit Electrical

• Unit Voltage

460 volt 3 phases

• Unit Hertz

60 hertz

• Total Power Input

73.81 kW

• Compressor Starter

Across the line

• Incoming Power Line Conn. Type

Single Point Unit Power

• Short Circuit Current Rating High

• Power Line Connection Type Circuit breaker-high fault rated.

65000 A

• FLA – Condenser Fan (each)

3.30 A

MCA

• Single Point Power MCA

156 A

RLA

• RLA Compressor 1A

25.00 A

• RLA Compressor 2B

33.00 A

• RLA Compressor 2A

33.00 A

25.00 A

MOP

• Single point power MOP

200 A

LRA

• LRA Compressor 1A

155.00 A

• LRA Compressor 2B

215.00 A

• LRA Compressor 2A

215.00 A

155.00 A

Physical Information

• Dimension (approx.)

Length –173.600 in

Width – 88.400 in

Height – 84.800 in

• Weights (approx.)

Operating Weight – 7855 lb

Shipping Weight – 6545 lb

• Refrigerant Charge (max.)

Circuit 1 – 52.00 lb

Circuit 2 – 52.0 lb

• Oil Charge (min.)

Circuit 1 – 2.70 gal

Circuit 2 – 2.70 gal

Standard Rating Performance and Information for LEED Rating

• Refrigerant Charge Circuit 1

52.0 lb

• Refrigerant Charge Circuit 2

52.0 lb

• Rated Refrigerating Capacity

68.48 tons

• Rated Cooling Efficiency

11.05 EER (Btu/W-h)

• Rated IPLV

16.26 EER (Btu/W-h)

• Refrigerating Capacity

66.23 tons

• Cooling Efficiency

10.77 EER (Btu/W-h)

Salient Characteristics of one (1) Chiller Air Cooled Chiller Shall be Trane CGAM-130 Or Approved Equal

Unit Overview

Air-Cooled Scroll Packaged Chiller Startup Included - Service must start equipment for warranty to be honored 130 Nominal Tons 208 volt, 3 phases, 60 hertz High efficiency/performance – Wide Ambient Refrigerant Charge R-454B With factory installed freeze protection Refrigerant isolation valves (discharge valve) ETL Listed to US/Canadian Safety Standard ASHRAE 90.1/CSA C743 - 2019 Compliance AHRI certified.

Factory installed flow switch - set point 60 cm/sec Phase Reversal Protection Standard Cooling – water Grooved pipe connection Factory insulation 0.75" Lanced aluminum fins Across the line starter/direct online Single point connection main line unit power-ancillary items require other power Circuit breaker-high fault rated control panel.

Enclosure Type UL 60335 Rated for Outdoor Applications BACnet MS/TP Interface

High A short circuit rating Elastomeric isolators With water strainer factory installed Super quiet factory installed sound package.

Architectural louvered panels 10-year Parts, Labor, and Refrigerant Warranty 1-yr Crane warranty (If movement is required)

Evaporator Information

• Evaporator Application Standard Cooling

• Fouling Factor

0.000100 hr-sq ft-deg F/BTU

• Flow switch set point Flow switch set point 60 cm/sec

• Flow Rate Design Flow – 287.0 gpm

VPF Min Flow – 165.1 gpm

• Evap head Loss

13.6 ft H2O

• Fluid Type Water

• Fluid Temperature Freeze Point - 32.00 F

Evaporator Entering – 54.00 F Evaporator Leaving – 44.00 F

• Evap + Strainer Head Loss

19.6 ft H2O

Condenser Information

• Unit Application Wide Ambient

• Ambient Air Temp

95.0 F

• Total Number of fans

Unit Electrical

• Unit Voltage 208 volt 3 phases

• Unit Hertz 60 hertz

• Total Power Input

142.0 kW

• Compressor Starter Across the line

• Incoming Power Line Conn. Type Single Point

High

• Power Line Connection Type Circuit breaker-high fault rated.

65000 A

• FLA – Condenser Fan (each)

6.70 A

MCA

• Single Point Power MCA 573 A

RLA

• RLA Compressor 1A

73.90 A

• RLA Compressor 1B

• RLA Compressor 1C

91.30 A

• RLA Compressor 2A 91.3A

• RLA Compressor 2C

MOP

• Single point power MOP 700 A

LRA

• LRA Compressor 1A

485.00 A

• LRA Compressor 1B

• LRA Compressor 1C

560.00 A

• LRA Compressor 2A

560.00 A

• LRA Compressor 2C

Physical Information

• Dimension (approx.)

Length – 205.200 in

Width – 88.400 in Height – 92.500 in

• Weights (approx.)

Operating Weight – 7900 lb

Shipping Weight – 7753 lb

• Refrigerant Charge (max.)

Circuit 1 – 93.00 lb Circuit 2 – 93.0 lb

• Oil Charge (min.)

Circuit 1 – 7.20 gal

Circuit 2 – 7.20 gal

Standard Rating Performance and Information for LEED Rating

• Refrigerant Charge Circuit 1

93.0 lb

• Refrigerant Charge Circuit 2

93.0 lb

• Rated Refrigerating Capacity

119.9 tons

• Rated Cooling Efficiency

10.14 EER (Btu/W-h)

• Rated IPLV

16.42 EER (Btu/W-h)

• Refrigerating Capacity

120.0 tons

• Cooling Efficiency

10.14 EER (Btu/W-h)

Qualifications/Certifications

• Personnel shall be qualified and have the required levels of professional and technical experience to perform the work required by this statement of work.

• Individuals working on site must be OSHA Certified.

• Phone and/or in-person kick off meeting after award.

Safety Regulations

• All applicable safety regulations shall be observed during all the work of this contract.

• The VA Safety Officer shall have full authority to see that the contractor obeys all safety rules and regulations relative to the fulfillment of this contract.

• Provide the necessary barricades/signage where required.

Scheduling and Hours of Work

• All work shall be scheduled with the Contracting Officer (CO) and the Lake City VAMC Point of Contact. (POC).

• The 10 holidays observed by the Federal Government, are New Years Day, Labor Day, Columbus Day, Veterans Day, Thanksgiving Day, and Christmas or any other day specifically declared by the President of the United States to be a national holiday.