12-11- Addendum 1- FAC133242.pdf

Addendum Page 1 of 1

ADD #01

ARCHITECTURAL NEXUS, Inc archnexus.com

SALT LAKE CITY

2505 East Parleys Way Salt Lake City, Utah 84109 T 801.924.5000

SACRAMENTO

930 R Street Sacramento, California 95811 T 916.443.5911

ISSUE DATE: September 15, 2026 RESPONSE TO: Pre-Bid Questions and Drawing Clarifications PROJECT: ADC Heat Exchangers – Final Phase

3415 South 900 West South Salt Lake City, UT 84119

OWNER: Salt Lake County 2001 S State St Salt Lake City, UT 84190

ARCHITECT’S

PROJECT #:

25049

PAGES: 1 + Attachments (11) = Replaced attached drawings: P102, P401, P402, P403, P404, P501, E002, E403 Replace attached specifications: N/A

This Addendum forms a part of the Contract Documents and modifies the original Bid Documents as noted below.

Acknowledge receipt of this Addendum in the space provided on the Bid Form. Failure to do so may subject the Bidder to disqualification. This Addendum includes all attachments noted, included herein by reference.

See the attached Cover Page & Drawings from Mechanical Engineer, dated September 14,2026 (8 sheets) &

Cover Page & Drawings from Electrical Engineer, dated September 15,2026 (3 sheets)

801.924.5000 asmith@archnexus.com 09.15.2026

Name Phone Email Date

, Project Manager

( 8 0 1 ) 5 3 0 - 3 1 4 8 r e s o l u t g r o u p . c o m i n f o @ r e s o l u t g r o u p . c o m

ADDENDUM NO 1

DATE: September 14, 2026

PROJECT NO: 250898

PROJECT: ADC Kitchen-Admin Water Heater Replacement

DIVISION – 21 & 22 & 23

CONTRACTORS QUESTIONS:

1. QUESTION: Clarify the pipe material and acceptable joining method for HWS pipe for 2-1/2” and above?

ANSWER: For HWS pipe 2-1/2” and above, provide Copper Pressure-Seal-Joint Fittings with wrought copper fittings with EPDM-rubber, o-ring seal in each end with a minimum 200-psig working-pressure rating at 250 deg. F. Copper pressure-seal joint fittings are also allowed for domestic water piping.

2. QUESTION: Sheet P403 shows 2 recirc pumps and there are no recirc pumps shown on the schedule, can you give the correct information on these pumps for bidding?

ANSWER: Recirculating Pump Schedules have been added.

3. QUESTION: Please confirm the drainpipe from high point auto vents runs to the floor as in previous phases with iso valve at floor level.

ANSWER: Provide drainpipe from high point auto vents and provide drain valves. It is not needed to extend drain lines to floor drains.

4. QUESTION: Please provide auto air vent detail.

ANSWER: Refer to specification 232116 section 2.2.B for Automatic Air Vents requirements.

5. QUESTION: Will hot tapping be required for new branch line connections to 8” mains (detail A3/P401&402), or will the system be shut down and drained to facilitate branch connections?

ANSWER: Contractor shall shut down system, drain, and refill system as needed for installation of new branch lines. Coordinate shut-down periods with owner.

6. QUESTION: Will a non-working fire watch person be required for hot work?

ANSWER: As an option, Copper Pressure-Seal-Joint Fittings are allowed to be installed and avoid a fire watch. If welded fittings are used, coordinate with Architect the requirements for a fire watch.

7. QUESTION: Will the ceiling access panels be reused? Do you want pricing for the broken one?

ANSWER: All ceiling panels to be reused. Coordinate existing conditions of access panels with owner.

DRAWINGS

SHEET – P102

1. Enlarged floor plan callout has been added. See revised drawings.

SHEET – P401

1. Refer to A6/P401: Domestic Expansion DET-J1 and Detail callouts have been added.

SHEET – P402

1. Refer to A6/P402: Domestic Expansion DET-J2 and Detail callouts have been added.

SHEET – P403

1. Refer to A6/P403: Pipe Sizes have been added to domestic water lines.

2. Refer to A6/P403: Domestic Expansion Tank DET-K1 has been added.

3. Refer to A3/P403: Domestic Expansion Tank DET-K1 has been added.

4. Refer to A3/P403: Existing isolation valves to be replaced with new on HWS and HWR existing lines.

Provide control valve and balancing valve.

5. Keynote 16 has been added.

SHEET – P404

1. Sheet P404 has been added. See revised drawings.

SHEET – P501

1. Detail B6/P501 has been added.

2. Inline Pump Detail call out has been updated to A6/P501.

3. Domestic Storage Tank ST-K1 schedule has been updated.

4. Domestic Expansion Tank DET-K1 schedule has been updated.

5. Recirculating Pump Schedules have been added.

6. Kitchen Domestic Water Heat Exchanger Detail has been updated.

7. Detail D6/P501 Hydronic Piping Detail has been added.

PRIOR APPROVALS

The following manufacturers, trade names and products are allowed to bid on a name brand only basis with the provision that they completely satisfy all and every requirement of the drawings, specifications and all addenda shall conform to the design, quality and standards specified, established and required for the complete and satisfactory installation and performance of the building and all its respective parts.

Item Manufacturer Comments Test and Balance Building Control System APPROVED Heat Exchangers DHT NOT APPROVED Domestic Storage Tank Niles Steel Tank APPROVED Hydronic Pump Wilo APPROVED Y-Strainer Titan, Griswold APPROVED Heat Exchangers Bell & Gossett APPROVED

C3 P402

A3 P401

A3 P402

C3 P401

B6 P404

B3 P404

LEVEL 2

OVERALL -

PLUMBING

PLAN

P102

KEY PLAN

P102

A4 LEVEL 2 OVERALL - PLUMBING PLAN

DATE:

DRAWN BY:

CHECKED BY:

NEXUS PROJ. #:

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Architectural NEXUS, Inc.

2505 East Parleys Way Salt Lake City, Utah 84109 T 801.924.5000 http://www.archnexus.com

Original drawings remain the property of the Architect and as such the Architect retains total ownership and control. The design represented by these drawings is sold to the client for a one time use, unless otherwise agreed upon in writing by the Architect.

© ARCH NEXUS All Rights Reserved

JBaker

250898

05/20/2026

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# Date Revision

181 E 5600 S, Murray, UT 84107 | (801) 530-3148 info@resolutgroup.com | resolutgroup.com

Project #: 250898

No. 8325442-2202

JACOB D.

BECK

05-20-26

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No. 8325442-2202

JACOB D.

BECK

0�-20-26

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HEAT EXCHANGER

140°F WATER140°F STORAGE

TANK

EXPANSION

TANK

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RCP

K1

RCP

K2

HEAT EXCHANGER

140° DHW SUPPLY TO BUILDING.

O-1 00°

F

DATE:

DRAWN BY:

CHECKED BY:

NEXUS PROJ. #:

123456

E

D

C

B

A

Architectural NEXUS, Inc.

2505 East Parleys Way Salt Lake City, Utah 84109 T 801.924.5000 http://www.archnexus.com

Original drawings remain the property of the Architect and as such the Architect retains total ownership and control. The design represented by these drawings is sold to the client for a one time use, unless otherwise agreed upon in writing by the Architect.

© ARCH NEXUS All Rights Reserved

JBaker

250898

05/20/2026

CD SET

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# Date Revision

181 E 5600 S, Murray, UT 84107 | (801) 530-3148 info@resolutgroup.com | resolutgroup.com

Project #: 250898

No. 8325442-2202

JACOB D.

BECK

05-20-26

REDUCER AS

VALVE (TYPICAL)

SHUT OFF

FLOW SETTER

CHECK VALVE

STRAINER W/BLOW

DOWN VALVE AND

HOSE CONNECTION

REQUIRED

PUMP (SEE PLAN) THERMOMETER

INLINE PUMP DETAIL

NO SCALE

A6

PLUMBING

SCHEDULES &

DETAILS

P501

KITCHEN DOMESTIC WATER HEAT EXCHANGER DETAIL

NO SCALE

A3

HEAT EXCHANGER SCHEDULE

SOURCE MEDIUM (HYDRONIC) TRANSFER MEDIUM (HYDRONIC) PHYSICAL

ENTERING/ ENTERING/ LENGTH./

MANUFACTURER FLOW LEAVING HEAD FLOW LEAVING HEAD WIDTH /

AND LOAD RATE TEMP. WORKING LOSS RATE TEMP. WORKING LOSS HEIGHT

ID MODEL NUMBER LOCATION TYPE USAGE (BTU/H) (GPM) (°F) FLUID (PSI) (GPM) (°F) FLUID (PSI) (IN/IN) NOTES

HX-J1 (2) AERCO SPDWEV EV-30 MECHANICAL ROOM DOUBLE WALL DOMESTIC 4,550,000 63 210 / 133 30% PG 15.8 65 40 / 110 WATER 6.5 32 / 24 / 75 1,2,3,4

HX-J2 (2) AERCO SPDWEV EV-30 MECHANICAL ROOM DOUBLE WALL DOMESTIC 4,550,000 63 210 / 133 30% PG 15.8 65 40 / 110 WATER 6.5 32 / 24 / 75 1,2,3,4

HX-K1 (2) AERCO SPDWEV EV-90 MECHANICAL ROOM DOUBLE WALL DOMESTIC 8,064,000 76 210 / 98 30% PG 11.7 70 40 / 160 WATER 3 32 / 24 / 75 1,2,3,4

1. ELECTRICAL REQUIREMENTS: 120/1/60 HZ.

2. PACKAGED WITH 3-WAY ELECTRONIC CONTROL VALVE.

3. COUNTER-CURRENT FLOW STAINLESS STEEL, BRAZED PLATE DOUBLE WALL HEAT EXCHANGER. ASME CODE SECTION VIII RATED FOR 150 PSIG.

4. EACH SYSTEM CONSISTS OF TWO SEPARATE WATER TO WATER HEAT EXCHANGER PIPED IN REVERSE RETURN CONFIGURATION.

DOMESTIC EXPANSION TANK SCHEDULE

FLUID PHYSICAL

MANUFACTURER MIN. TANK/ TANK RELIEF DIA./ NPT

AND WORKING ACCEPTANCE SIZE VALVE HEIGHT FITTING

ID MODEL NUMBER LOCATION TYPE FLUID (GAL) (GAL) (PSIG) (IN) (IN) NOTES

DET-J1 AMTROL ST-12C-DD PUMBING CHASE DIAPHRAGM WATER 3.2 6.4 150 12/18 3/4 1,2

DET-J2 AMTROL ST-12C-DD PUMBING CHASE DIAPHRAGM WATER 3.2 6.4 150 12/18 3/4 1,2

DET-K1 AMTROL ST-447C PUMBING CHASE BLADDER WATER 53 53 150 24/45 2 3

1. DIAPHRAGM: HEAVY DUTY BUTY NSF/ANSI 61.

2. ANTIMICROBIAL POLYPROPYLENE LINER.

3. STEEL TANK WITH HEAVY DUTY BUTYL NSF/ANSI 61 FULL ACCEPTANCE BLADDER.

HYDRONIC PUMP SCHEDULE

FLUID ELECTRICAL

MANUFACTURER FLOW HEAD MOTOR MOTOR

AND RATE WORKING LOSS SIZE SPEED

ID MODEL NUMBER LOCATION TYPE (GPM) FLUID (FT) (HP) (RPM) VOLT/PH/HZ NOTES

P-J1 B&G E-90 1.5AB MECHANICAL J2043 IN-LINE 60 30% PG 40 1-1/2 1800 460/3/60 1,2,3,4

P-J2 B&G E-90 1.5AB MECHANICAL J2044 IN-LINE 60 30% PG 40 1-1/2 1800 460/3/60 1,2,3,4

P-K1 B&G E-90 1.5AB MECHANICAL ROOM IN-LINE 76 30% PG 40 1-1/2 1800 460/3/60 1,2,3,4

1. CAST IRON CONSTRUCTION.

2. PERMANENTLY LUBRICATED MOTOR TYPE.

3. BRONZE SLEEVE, OIL LUBRICATED MOTOR. PROVIDE OVERLOAD PROTECTION.

4. PUMP TO BE INSTALLED IN THE HORIZONTAL POSITION WITH A VERTICAL MOUNTED MOTOR. COORDINATE EXACT LOCATION AND ELEVATION WITH OWNER.

DOMESTIC WATER HEAT EXCHANGER DETAIL

NO SCALE

B6

DOMESTIC STORAGE TANK SCHEDULE

WORKING DIA/

CAPACITY PRESS. HEIGHT

ID MANUFACTURER SERVICE (GAL) (PSI) (IN) NOTES

ST-K1 AERCO DUPLEX SS DOMESTIC HOT WATER 300 150 46 / 75 1,2,3

1. DUPLEX STAINLESS STEEL DOMESTIC WATER STORAGE TANK.

2. ASME STAMPED AND NATIONAL BOARD REGISTERED FOR 150 PSI.

3. FIBERGLASS INSULATION AND COATED STEEL JACKET PANELS.

RECIRCULATING PUMP SCHEDULE

FLUID ELECTRICAL

MANUFACTURER FLOW HEAD MOTOR MOTOR

AND RATE WORKING LOSS SIZE SPEED

ID MODEL NUMBER LOCATION TYPE (GPM) FLUID (FT) (HP) (RPM) VOLT/PH/HZ NOTES

RCP-K1 B&G PL-36 MECHANICAL ROOM IN-LINE 5 DHW 30 1/6 3300 120/1/60 1,2

RCP-K2 B&G PL-100 MECHANICAL ROOM IN-LINE 40 DHW 20 2/5 3250 120/1/60 1,2

1. CAST IRON CONSTRUCTION, STAINLESS STEEL FACE PLATE.

2. PERMANENTLY LUBRICATED MOTOR TYPE.

HYDRONIC PIPING DETAIL (JAIL SUPPORT, TYPICAL OF 2)

NO SCALE

D6

( 8 0 1 ) 5 3 0 - 3 1 4 8 r e s o l u t g r o u p . c o m i n f o @ r e s o l u t g r o u p . c o m

ADDENDUM NO 1

DATE: September 15, 2026

PROJECT NO: 250898

PROJECT: ADC Kitchen-Admin Water Heater Replacement

DIVISION – 26

DRAWINGS

SHEET – E002 – ELECTRICAL DETAILS AND SCHEDULES

1. Added panel schedule NLK4

2. Updated Equipment Schedule

a. Added RCP-K1.

b. Added RCP-K2.

SHEET – E403 – ENLARGED ELECTRICAL PLANS

1. Added RCP-K1 and RCP-K2.

ELECTRICAL

DETAILS AND

SCHEDULES

E002

DATE:

DRAWN BY:

CHECKED BY:

NEXUS PROJ. #:

123456

E

D

C

B

A

Architectural NEXUS, Inc.

2505 East Parleys Way Salt Lake City, Utah 84109 T 801.924.5000 http://www.archnexus.com

Original drawings remain the property of the Architect and as such the Architect retains total ownership and control. The design represented by these drawings is sold to the client for a one time use, unless otherwise agreed upon in writing by the Architect.

© ARCH NEXUS All Rights Reserved

STruong

250898

05/21/2026

CONSTRUCTION

DOCUMENTS

STruong

S

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# Date Revision

181 E 5600 S, Murray, UT 84107 | (801) 530-3148 info@resolutgroup.com | resolutgroup.com

Project #:

PM: SANG TRUONG

250898

L

IC

EN

SE

D P

ROFESS I ONAL ENG

IN

E

ER

14275529

STA T E O F U TAH

SANG TRUONG

No.

05-21-2026

STRUCTURE

STRUCTURE

STRUCTURE STRUCTURE

ALL THREAD (SIZE AS

REQUIRED) 3/8" MIN.

BEAM CLAMPS OR HANGER

CLAMPS (AS REQUIRED BY

WEIGHT SUPPORTED)

RACEWAY. (3/4" - 6")

CONDUIT HANGER

BEAM CLAMPS OR HANGER

CLAMPS (AS REQUIRED BY

WEIGHT SUPPORTED)

RACEWAY. (3/4" - 6")

NOTES:

1. WIRE SHALL NOT BE USED AS A COMPONENT OF ANY

RACEWAY HANGER SYSTEM.

2. DO NOT SUPPORT ANY RACEWAY LARGER THAN 1"

FROM BOTTOM CORD OF STEEL TRUSSES.

REFER TO SECTION FOR

ATTACHMENT OF ALL

THREAD ROD TO KINDORF

CHANNEL

1 1/2"x1 1/2"-12GA. KINDORF

CHANNEL OR APPROVED

SUBSTITUTE

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MANUFACTURERS

RECOMMENDATIONS.

SUPPORT CONDUIT WITH

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SUPPORTED

PROVIDE 25% SPACE CAPACITY

NUT

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NUT

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SUPPORTING MATERIAL

1" (25mm) DEPTH CAULK

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WITHIN

COVER CAULK SURFACE WITH

MASKING TAPE OR BACKER ROD

UNTIL CURED (24-72 HOURS) TO

PREVENT SAGGING OF CAULK IF

IT OCCURS (SEE NOTE 5)

2 OR 3 HOUR FIRE RATED CONCRETE

BLOCK WALL

FILL GAP COMPLETELY AROUND PIPE WITH

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2 OR 3 HOUR FIRE

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