BID 24-16 Hillcrest Air Cooler Chiller Addition
| Agency: | University of Southern Mississippi |
|---|---|
| State: | Mississippi |
| Level of Government: | State & Local |
| Category: |
|
| Opps ID: | NBD16802987739560161 |
| Posted Date: | Nov 1, 2023 |
| Due Date: | Nov 21, 2023 |
| Solicitation No: | BID 24-16 |
| Source: | Members Only |
| Solicitation | Submission Deadline | Request Documents and Specifications |
|
BID 24-16
|
11/21/23 |
Attachment Preview
THIS IS NOT
AN ORDER
REQUEST FOR BIDS/PROPOSALS COVERSHEET
THE UNIVERSITY OF SOUTHERN MISSISSIPPI
Procurement and Contract Services
118 College Drive #5003, Hattiesburg, Mississippi 39406-0001
Date: November 1, 2023
Name: ____________________________________
Company: _________________________________
Address: __________________________________
City/State/Zip: ______________________________
TERMS - Bidder should state terms of sale. Our terms are 2% ten days, net 45 days.
These terms will apply per Mississippi law.
AWARDING CONTRACT - Cash terms will not be used as a basis for awarding
contracts; however, the University will accept cash discounts when earned.
BID No. 24-16
THE UNIVERSITY OF SOUTHERN MISSISSIPPI is considering
the purchase of the following item(s). We ask that you submit your
bid and retain one copy for your files. Right is reserved to accept or
reject any part of your bid. Your quotation will be given
consideration if received in Bond Hall, Room 214 on or before:
2:00 p.m. CT
November 21, 2023
Buyer: Deidre Edwards
NOTE: If you cannot quote on the exact material shown, please indicate any exception giving brand name and complete
specifications of any alternate. If additional space is required, use a separate sheet or letter of transmittal.
ITEM
QUANTITY
UNIT PRICE
TOTAL NET PRICE
DESCRIPTION
BID 24-16 Hillcrest Air Cooled Chiller
RFx # 3160006246
PROPOSAL MUST BE RETURNED TO THE UNIVERSITY IN
ACCORDANCE WITH THE SPECIFICATIONS. RFP NUMBER AND
DATE OF BID OPENING MUST BE SHOWN ON THE OUTSIDE OF
THE ENVELOPE IF USING THAT METHOD.
We quote you as above - F.O.B. The University of Southern Mississippi.
Shipment can be made in
days from receipt of order. DATE ______________
Return quotation to Procurement Services at above address.
AA/EOE/ADAI
Signature Required__________________________________________
The University of Southern Mississippi
Request for Bids # 24-16
Hillcrest Air Cooled Chiller
1.0 Introduction
The University of Southern Mississippi (USM) is seeking to procure a Air Cooled Chiller for Hillcrest
Hall
2.0 Specifications
Part 1 – General
1.01 Summary
A. Section includes design, performance criteria, refrigerants, controls, and installation
requirements for air-cooled scroll compressor chillers.
B. Provide one (1) 120-ton air-cooled chiller with scroll compressors and without pump
package.
1.02 References
A. Comply with applicable Standards/Codes of AHRI 550/590, ANSI/ASHRAE 15, ETL, cETL,
NEC, and OSHA as adopted by the State.
B. Units shall meet the efficiency standards of the current version of ASHRAE Standard 90.1,
and FEMP Standard 2012.
1.03 Submittals
A. Submit shop drawings and product data in accordance with the specifications.
B. Submittals shall include the following:
1. Dimensioned plan and elevation view drawings, required clearances, and location
of all field connections.
2. Single-line schematic drawing of the power field hookup requirements, indicating
all items that are furnished.
3. Schematic diagram of control system indicating points for field
interface/connection.
4. Diagram shall fully delineate field and factory wiring.
5. Installation manuals.
1.04 Quality Assurance
A. Qualifications: Equipment manufacturer must specialize in the manufacture of the
products specified and have five years experience with the type of equipment and
refrigerant offered.
B. Regulatory Requirements: Comply with the codes and standards specified.
C. Chiller manufacturer’s plant must be ISO registered.
1.05 Delivery and Handling
A. Packaged Chillers Only: Chiller shall be delivered to the job site completely assembled
and charged with refrigerant and oil by the manufacturer.
B. Comply with the manufacturer’s instructions for rigging and handling equipment.
1.06 Warranty
A. The refrigeration equipment manufacturer’s guarantee shall be for a period of one year
from the date of equipment start-up but not more than 18 months from shipment. The
guarantee shall provide for repair or replacement due to failure by material and
workmanship that prove defective within the above period, excluding refrigerant.
1.07 Maintenance
A. Maintenance of the chillers shall be the responsibility of the owner and performed in
accordance with the manufacturer’s instructions.
Part 2 – Products
2.01 Acceptable Manufacturers
A. Daikin Applied
B. Trane
C. York
D. Approved Equal
2.02 Unit Description
A. Provide and install as shown on the plans factory assembled, factory-charged air-
cooled packaged chillers in the quantity specified. Each chiller shall consist of hermetic
dual or triple scroll compressor sets (total four or six compressors), brazed plate
evaporator, air-cooled condenser section, microprocessor-based control system and all
components necessary for controlled unit operation.
B. Chiller shall be functionally tested at the factory to ensure trouble-free field operation.
2.03 Design Requirements
A. General: Packaged Chillers: Provide a complete scroll compressor packaged chiller as
specified herein. The unit shall be in accordance with the standards referenced in
section 1.02 and any local codes in effect.
B. Performance: Refer to the schedule of performance per specifications. The chiller shall
be capable of stable operation to a minimum percentage of full load (without hot gas
bypass) of 25%. [17% for 6 compressor units]. Performance shall be in accordance with
AHRI Standard 550/590.
C. Chiller Schedule
MARK
CH-1
TYPE
AIR COOLED SCROLL
NOM. TONS
120
COND. TEMP
95 F
EFFICIENCY (EER)
10.64
EWT
54 F
EVAPORATOR
LWT
44 F
GPM
297
WPD (FT)
9.9
COMPRESSORS
SIZE
NO.
30 TONS EA.
4
VOLTS
208V
PHASE
3
ELECTRICAL
HERTZ
MCA
60
549 AMPS
MOP
600 A AMPS
KW
140
APPROX. OVERALL L (IN.)
192
DIMENSIONS
W (IN.)
88
H (IN.)
99
MFR.
DAIKIN
MODEL
AGZ120E
D. Flow Range: The chiller shall have the ability to support variable flow range down to
40% of nominal design (based on AHRI conditions).
E. Operating Range: The chiller shall have the ability to control leaving chilled fluid
temperature from 15°F to 65°F.
F. Acoustics: Sound pressure levels for the unit shall not exceed the following specified
levels. The manufacturer shall provide the necessary sound treatment to meet these
levels if required. Sound data shall be provided with the quotation. Test shall be in
accordance with AHRI Standard 370.
Sound Pressure (at 30 feet)
63
125
250
500
1000
2000
4000
8000
Overall 75% Load 50% Load 25% Load
Hz
Hz
Hz
Hz
Hz
Hz
Hz
Hz
dBA
dBA
dBA
dBA
64
58
61
59
55
54
51
45
61
61
59
58
Sound Power
63
125
250
500
1000
2000
4000
8000
Overall 75% Load 50% Load 25% Load
Hz
Hz
Hz
Hz
Hz
Hz
Hz
Hz
dBA
dBA
dBA
dBA
91
85
88
86
82
81
79
72
89
88
86
85
2.04 Chiller Components
A. Compressors
1. The compressors shall be sealed hermetic, scroll type with crankcase oil heater
and suction strainer. The compressor motor shall be refrigerant gas cooled, high
torque, hermetic induction type, two-pole, with inherent thermal protection on
all three phases and shall be mounted on RIS vibration isolator pads. The
compressors shall be equipped with an internal module providing compressor
protection and communication capability.
B. Evaporators
1. The evaporator shall be a compact, high-efficiency, dual circuit, brazed plate-to-
plate type heat exchanger consisting of parallel stainless steel plates.
2. The evaporator shall be protected with an external, electric resistance heater
plate. The evaporator shall be insulated with 3/4” thick CFC and HCFC-free closed-
cell flexible elastomeric foam insulation material with 100% adhesive coverage.
The insulation shall have an additional outer protective layer of 3mm thick PE
embossed film to provide superior damage resistance. Insulation without the
protective outer film shall not be acceptable. UV resistance level shall meet or
exceed a rating of ‘Good’ in accordance with the UNI ISO 4892 - 2/94 testing
method. This combination of a heater plate and insulation shall provide freeze
protection down to -20°F ambient air temperature.
3. The water-side working pressure shall be a minimum of 435 psig. Vent and drain
connections shall be provided in the inlet and outlet chilled water piping by the
installing contractor. Evaporators shall be designed and constructed according to,
and listed by, Underwriters Laboratories (UL).
C. Condenser
1. Condenser fans shall be propeller type arranged for vertical air discharge and
individually driven by direct-drive fan motors. The fans shall be equipped with a
heavy-gauge vinyl-coated fan guard. Fan motors shall be TEAO type with
permanently lubricated ball bearings, inherent overload protection, three-phase,
direct-drive, 1140 rpm. Each fan section shall be partitioned to avoid cross
circulation.
2. Coil shall be microchannel design and shall have a series of flat tubes containing
multiple, parallel flow microchannels layered between the refrigerant manifolds.
Tubes shall be 9153 aluminum alloy. Tubes made of 3102 alloy or other alloys of
lower corrosion resistance shall not be accepted. Coils shall consist of a two-pass
arrangement. Each condenser coil shall be factory leak tested with high-pressure
air under water.
D. Refrigerant Circuit
1. Each of the two refrigerant circuits shall include a refrigerant filter drier, sight
glass with moisture indicator, liquid line solenoid valve, expansion valve, and
insulated suction line.
E. Construction
1. Unit formed sheet metal components shall be painted using a corrosion resistant
paint system, for aesthetics and long-term durability. Paint system will include a
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