Exhibit_B_-_Mechanical_Schedule.pdf

PDF 793 KB Posted Mar 26, 2026

Attached to: Centrifugal Water-Cooled Chillers DGS/OTA
Solicitation number: 0000038082
Issued by: California

About this file

Written by GovTribe AI · Apr 3, 2026

This is a Mechanical Schedule document (Exhibit B) prepared by Stantec for the California Department of Education's California School for the Deaf chiller replacement project located at 39350 Gallaudet Drive, Fremont, California. The project involves the installation of two centrifugal water-cooled chillers (Daikin WMC060DDSEA units), each with a capacity of 300 tons and utilizing R513A refrigerant. The scope includes associated mechanical equipment: two 50-horsepower chilled water pump units (Armstrong 4030-4x3x8-2P-50HP), an HVAC expansion tank (Bell & Gossett B-800), an air separator (Bell & Gossett RL-8F), a chemical pot feeder (Wessels CPFT-5), and four variable frequency drives (ABB ACH580-PCR-065A-4) with redundant N+1 electronic VFD configuration for the pump units. The document reflects multiple revision dates from December 31, 2024, through August 25, 2025, indicating design development and design-standards agency backcheck submissions.

The specification requires owner-furnished, contractor-installed chillers that meet 2022 California Title 24 Section 110.2(a) efficiency requirements with Path B adjusted maximum full load ratings. Equipment must be mounted on existing concrete pads with 12-month manufacturer warranties from installation or 18 months from shipment (whichever comes first). Critical specifications include dual VFDs with active harmonic distortion filters, hot gas bypass capability, marine water boxes with hinged covers, corrosion protection on wetted surfaces, and a refrigerant monitoring system with 3,500 CFM exhaust fan integration. The installing contractor is responsible for commissioning, seismic attachment calculations, refrigerant relief piping, refrigerant monitoring system, and self-contained breathing apparatus (SCBA) provisions.

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ATTACHMENT_3_-_COST_WORK_(CHILLERS)_.xlsx	XLSX spreadsheet	Mar 26, 2026
Exhibit_A_-Technical_Specifications.docx	DOCX document	Mar 26, 2026
ATTACHMENT_4_NARRATIVE_RESP_(CHILLERS).pdf	PDF	Mar 26, 2026
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CHILLERS_(FINAL).docx	DOCX document	Mar 26, 2026
ATTACHMENT_2_ADMIN_(CHILLERS).docx	DOCX document	Mar 26, 2026
ATTACHMENT_1_SOW_(CHILLERS)_(1).docx	DOCX document	Mar 26, 2026
ATTACHMENT_5_-_WORK_AUTH_(CHILLERS).pdf	PDF	Mar 26, 2026

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Project

Supervisor Designed Drawn

DSA App No.

Sheet Title

Project Number

Sheet Scale

Sheet Number

A x

C o p y ri g h t

C a lif o rn ia D e p a rt m e n t o f

G e n e ra l S e rv ic e s

R e a l E s ta te S e rv ic e s D iv is io n

BCDEFGHIJKLMNO

ABCDEFGHIJKLMNO

SFM Permit No.

RELATIVE BORDER SCALE IN INCHES

0 1 2 3

300 Montgomery Street Suite

San Francisco, CA 94104-1914 Phone. (415) 882-9500

Website: stantec.com

01-122140

1 04/02/2025 BID SET

12/31/2024 BID SET

Issue

No. Date Description

2 06/06/2025 CHILLER RE-BID

08/04/2025 DSA BACKCHECK

08/25/2025 DSA BACKCHECK #2

:1 :3

M A u to d e s k D o c s:

G S

_C D

E _F re m o n t_ C h ill e r_

R p l/ s tn m e c h

.r vt

M002

MK VP VP

MECHANICAL SCHEDULES

2045324901

CALIFORNIA SCHOOL

FOR THE DEAF CHILLER

REPLACEMENT

39350 GALLAUDET DRIVE, FREMONT, CA, 94538

CA DEPT OF EDUCATION

NOTES:

1. PROVIDE SINGLE ELECTRICAL CONNECTION.

2. PROVIDE DUAL VFD'S WITH ACTIVE HARMONIC DISTORTION FILTERS

3. OWNER FURNISHED, CONTRACTOR INSTALLED. THE FOLLOWING WORK WILL BE PROVIDED BY THE INSTALLING CONTRACTOR: COMMISSIONING, SEISMIC CALCULATIONS FOR ATTACHMENT TO THE CONCRETE PAD, REFRIGERANT RELIEF PIPING, REFRIGERANT MONITORING SYSTEM AND SCBA.

4. MOUNT ON EXISTING CONCRETE PAD

5. 65 KAIC SCCR

6. CHILLER TO MEET PATH B EFFICIENCIES REQUIRED BY 2022 CALIFORNIA TITLE 24 SECTION 110.2.a. EXCEPTION 1 FOR ADJUSTED MAXIMUM FULL LOAD KW/TON AND NPLV RATINGS.

7. PROVIDE WITH HOT GAS BYPASS

8. PROVIDE MARINE WATER BOX WITH HINGED COVER ON EVAPORATOR AND CONDENSER.

9. PROVIDE CORROSION PROTECTION ON WETTED SURFACES.

10. PROVIDE MANUFACTURER WARRANTY FOR PERIOD OF 12 MONTHS FROM DATE OF INSTALLATION OR 18 MONTHS FROM DATE OF SHIPMENT, WHICHEVER COMES FIRST.

11. CHILLERS WILL BE OWNER FURNISHED AND CONTRACTOR INSTALLED.

CH 2 300 0.465 0.325 R513A 1,197 WATER 513.0 58.0 44.0 5.2 0.0001 2 WATER 820.4 75.0 85.0 12.7 0.00025 460 3 227.0 300 13,900 94.5 55.2 177.7 1/S202 DAIKIN WMC060DDSEA ALL

CH 1 300 0.465 0.325 R513A 1,197 WATER 513.0 58.0 44.0 5.2 0.0001 2 WATER 820.4 75.0 85.0 12.7 0.00025 460 3 227.0 300 13,900 94.5 55.2 177.7 1/S202 DAIKIN WMC060DDSEA ALL

HEIGHT

(IN)

WIDTH

(IN)

LENGTH

(IN)

MARK NUMBER

UNIT

CAPACITY

(TONS)

kW/TON NPLV

REFRIG

TYPE

REFRIG

CHARGE

(LBS)

FLUID

TYPE

FLOW

(GPM)

EWT

(F)

LWT

(F)

MAX WPD

(FT)

FOULING

FACTOR

NO OF COMP

FLUID

TYPE

FLOW

(GPM)

EWT

(F)

LWT

(F)

MAX WPD

(FT)

FOULING

FACTOR

VOLTS PHASE MCA MOP

OPERATING

WEIGHT

(LBS)

DIMENSIONS

UNIT IDENTIFICATION CAPACITY AND PERFORMANCE CHILLED WATER CONDENSER WATER ELECTRICAL PHYSICAL CHARACTERISTICS MOUNTING

DETAIL

DRAWING

REFERENCE

MANUFACTURER MODEL NUMBER NOTES

WATER COOLED CHILLER SCHEDULE

NOTES:

1. PIPE INSULATION THICKNESS BASED ON 2022 CEC.

MECHANICAL ROOM X X X 1 X X ALL

CHILLED WATER 2-1/2 AND LARGER 8 4 44-56 125 200 125 2.5

EXPOSED X X X 1 X X ALL

M A

X V

Y (F

P S

M A

X F

N (F

T /1

O P

E R

A T

T E

M P

W O

R K

P R

E S

S U

R E

(P S

T E

M P

R A

G (F

T E

S T

P R

E S

S U

R E

(P S

T E

S D

U R

A T

R S

C O

P P

E R

T Y

P E

C O

P P

E R

T Y

P E

S C

T E

E L

S C

T E

E L

S C

Y P

T A

S S

S T

E E

S C

Y P

T A

S S

S T

E E

H D

P E

X -A

S O

R E

B R

A Z

E D

T H

R E

A T

E D

W E

P R

E S

S U

R E

G S

G R

O O

V E

E R

A L

E R

R E

F O

R M

E D

T O

M E

T H

N E

S S

A S

J- S

F S

Y L

P V

U M

S T

S S

T E

E L

SYSTEM PIPE SIZE (IN)

DESIGN CONSTRUCTION

LOCATION

MATERIAL JOINTS INSULATION FACTORY JACKET FIELD JACKET

NOTES

PIPING SYSTEM APPLICATION SCHEDULE

NOTES:

1. CONNECT EXISTING EXHAUST FAN TO NEW REFRIGERANT MONITORING SYSTEM, AND TO THE EXISITNG BMS.

2. FAN TO OPERATE AT MINIMUM AIRFLOW AND CHANGE TO MAX AIRFLOW UPON REFRIGERANT LEAK DETECTION.

(E)EF 1 CHILLER ROOM 3,500 700 1.00 1.2 1-1/2 460 3 ALL

MARK NUMBER

UNIT/AREA

SERVED

BHP HP VOLTS PHASE

UNIT IDENTIFICATION

MAX

AIRFLOW

(CFM)

MIN

AIRFLOW

(CFM)

ESP

(IN-WG)

FAN MOTOR ELECTRICAL

NOTES

EXISTING FAN SCHEDULE

NOTES:

1. PROVIDE WITH VFD AND REDUNDANT N+1 ELECTRONIC VFD.

2. PROVIDE WITH SUCTION DIFFUSER, ARMSTRONG SG-64

3. MOUNT ON EXISTING CONCRETE PAD

CHWP 2 CH-2 BASE-MOUNTED END SUCTION WATER 44 514 207 75 100 33.5 50 3,500 460 3 1000 4/S202 ARMSTRONG 4030-4x3x8-2P-50HP ALL

CHWP 1 CH-1 BASE-MOUNTED END SUCTION WATER 44 514 207 75 100 33.5 50 3,500 460 3 1000 4/S202 ARMSTRONG 4030-4x3x8-2P-50HP ALL

MARK NUMBER

SYSTEM

SERVED

FLUID TYPE

FLUID

TEMP

(F)

FLOW

(GPM)

PUMP

HEAD

(FT)

MIN

EFFICIENCY

BHP HP

SPEED

(RPM)

VOLTS PHASE

UNIT IDENTIFICATION

PUMP TYPE

PERFORMANCE

PUMP MIN

FLOW (GPM)

PUMP MOTOR ELECTRICAL

OPERATING

WEIGHT

(LBS.)

MOUNTING

DETAIL

DRAWING

REFERENCE

MANUFACTURER MODEL NUMBER NOTES

CHILLED WATER PUMP SCHEDULE

NOTES:

1. MOUNT TO EXISTING CONCRETE PAD.

2. NEW EXPANSION TANK PRE-CHARGED PRESSURE TO MATCH EXISTING EXPANSION TANK PRE-CHARGED PRESSURE.

ET 1 CHILLED WATER BLADDER YES 211 211 32 76 2,500 2/S202 BELL & GOSSETT B-800 ALL

MARK NUMBER

SYSTEM

SERVED

TYPE

ASME

CONSTRUCTION

TANK VOLUME

(GAL)

ACCEPTANCE

VOLUME

(GAL)

DIAMETER

(IN)

HEIGHT

(IN)

WEIGHT

(LBS)

UNIT IDENTIFICATION TANK

MOUNTING

DETAIL

DRAWING

REFERENCE

MANUFACTURER MODEL NUMBER NOTES

HVAC EXPANSION TANK SCHEDULE

NOTES:

1. CONNECT TO EXISTING CHILLED WATER SYSTEM. PROVIDE NEW PIPING CONNECTIONS AND VALVES AS REQUIRED.

AS 1 CHILLED WATER CENTRIFUGAL 8 24 54 1,200 1,900.0 2.0 3/S202 BELL & GOSSETT RL-8F ALL

MARK NUMBER

SYSTEM

SERVED

UNIT IDENTIFICATION

TYPE

CONNECTION

SIZE

(IN)

DIAMETER

(IN)

HEIGHT

(IN)

WEIGHT

(LBS)

FLOW

(GPM)

MAX WPD

(FT)

MOUNTING

DETAIL DRAWING

REFERENCE

MANUFACTURER MODEL NUMBER NOTES

AIR SEPARATOR SCHEDULE

NOTES:

1. CONNECT TO EXISTING CHILLED WATER SYSTEM. PROVIDE NEW PIPING CONNECTIONS AND VALVES AS REQUIRED.

CPF 1 CHILLED WATER 5 23 10 75 6/S202 WESSELS CPFT-5 ALL

MARK NUMBER

SYSTEM

SERVED

HEIGHT

(IN)

DIAMETER

(IN)

UNIT IDENTIFICATION

TANK

VOLUME

(GAL)

DIMENSIONS

WEIGHT

(LBS)

MOUNTING

DETAIL

DRAWING

REFERENCE

MANUFACTURER MODEL NUMBER NOTES

CHEMICAL POT FEEDER SCHEDULE

NOTES:

1. PROVIDE VFD AND SHAFT GROUNDING RING FOR LOAD INDICATED.

2. VFD TO BE MOUNTED TO EXISTING UNISTRUTS.

VFD 2B CHILLER ROOM CHWP-2 (REDUNDANT VFD) 50 65 460-3 40.6 8.4 14.3 60 5/S202 ABB ACH580-PCR-065A-4 ALL

VFD 2A CHILLER ROOM CHWP-2 50 65 460-3 40.6 8.4 14.3 60 5/S202 ABB ACH580-PCR-065A-4 ALL

VFD 1B CHILLER ROOM CHWP-1 (REDUNDANT VFD) 50 65 460-3 40.6 8.4 14.3 60 5/S202 ABB ACH580-PCR-065A-4 ALL

VFD 1A CHILLER ROOM CHWP-1 50 65 460-3 40.6 8.4 14.3 60 5/S202 ABB ACH580-PCR-065A-4 ALL

MARK NUMBER LOCATION UNIT SERVED

UNIT IDENTIFICATION

MOTOR HP FLA (A) VOLT-PHASE HEIGHT (IN) WIDTH (IN) DEPTH (IN)

OPERATING

WEIGHT

(LBS.)

MOUNTING

DETAIL

DRAWING

REFERENCE

MAKE MODEL NOTES

VARIABLE FREQUENCY DRIVE SCHEDULE

Signed 9/11/2025

Mechanical Schedules IFB 7760-0000038082 Centrifugal Water Chillers Exhibit B

Sheets

M002 - MECHANICAL SCHEDULES

File details come from the government source that posted it. Updated Apr 3, 2026.