2306 Addendum 1.pdf

RFB #2306 Addendum One Page 1 of 3

Yes.

Revisions:

PROJECT MANUAL

1. Section 23 81 07 Packaged Rooftop Units – Medium Capacity:

a. Add the following to paragraph F. Exhaust Fans –

9. Factory-provided grease fittings at the fan bearings.

DRAWINGS

1. Missing sheet S1.01 attached.

2. Sheet H2.05 – Remove keynote 3.

3. Replace sheet H4.02 with the attached.

4. Sheet H4.03 Grille and Diffuser Schedule – Revise the following:

a. Tag E1 Model revise to PDDR

b. Tag S2 Model revise to SMDA

5. Sheet H5.06 – Detail 1 Roof Mounted Smoke Exhaust Fan, Revise Sequence of Operation Note 1. to the following:

a. THE CONTROLS CONTRACTOR SHALL PROVIDE HARDWIRED

ANSI/UL 864 CONTROLLERS TO PROVIDE CONTROL

FUNCTIONS AS SPECIFIED HEREIN TO COMPLY WITH THE

REQUIREMENTS OF NFPA 92. CONTROLS CONTRCTOR SHALL

BE RESPONSIBLE FOR COORDINATING SIGNALS FROM THE

EXISTING FIRE ALARM PANEL.

6. Sheet H5.06 – Detail 1 Roof Mounted Smoke Exhaust Fan, Revise Sequence of Operation Note 3a. to the following:

a. ANY OF THE DUCT/ROOM MOUNTED SMOKE DETECTORS IN

EACH SMOKE CONTROL ZONE SHALL GENERATE ONE

SIGNAL, PER ZONE, THRU THE FIRE ALARM SYSTEM TO

START THE SEF FOR THAT SMOKE CONTROL ZONE AND

ALLOW GRAVITY BACKDRAFT DAMPER TO OPEN. SF SHALL

ENGAGE AS DIRECTED BY THE SMOKE CONTROL SYSTEM

AND ALLOW MOTORIZED DAMPER TO OPEN.

7. Sheet H5.07 – Detail 1 Existing Boiler, Revise Sequence of Operation Note

5. to the following:

a. ACTIVATION OF THE EMERGENCY SHUTOFF SWITCH SHALL

IMMEDIATELY SHUT OFF THE POWER SUPPLY TO BOTH

BOILERS, AS REQUIRED BY ASME CSD-1. REFER TO SHEET

H2.05 FOR SWITCH LOCATION.

8. Sheet E0.01 – Add the following notes to Electrical General Notes:

12. FIRE ALARM SCOPE

a. COORDINATE REMOVAL AND REINSTALLATION OF

EXISTING DUCT MOUNTED SMOKE DETECTORS. REFER

TO HVAC PLANS FOR LOCATIONS AND QUANITITES.

KENOSHA COUNTY

RFB #2306 ADDENDUM ONE DATED 3/16/2023

Kenosha County Detention Center Rooftop Equipment Replacement

Phase 3

RFB #2306 Addendum One Page 2 of 3

b. CONTRACTOR SHALL COORDINATE FIRE ALARM

CONTROLS INTERFACE WITH THE FIREFIGHTER SMOKE

CONTROL STATION.

8. Sheet E5.01, Equipment Connection Schedule – Revise HP for SEF 05-2, SEF 05-3, SEF 07-1, SEF 07-2, SEF 08-1, SEF 08-2 to 1.5HP.

Questions & Answers:

Q1. Sheet 5.06 Control Detail 1 for the Supply Fans and Smoke Exhaust fans

Sequence of operation – Note 3 Auto Mode – shows a duct mounted smoke detector that will trigger the automatic smoke control for that zone, Sheet

5.08 shows the zones depicted out – will each smoke zone have a zone smoke alarm to sense smoke in the particular zone as depicted out in the zoning plan? The RACU’s have duct mounted smoke detectors that call for the respective unit to shutdown.

A. Yes, there are existing smoke detectors at each dormitory that shall remain and be used for smoke alarm.

Q2. For the zones depicted on sheet 5.08 – are these individual areas compartmented from each (full height walls defining that zone in particular) other to achieve the pressure relationship as depicted in the Smoke Control Sequence listed?

A. The smoke exhaust is required at the dormitories only. The existing dormitories walls are full height. The miscellaneous rooms within the dormitories such as multipurpose rooms do not require exhaust, those rooms are highlighted in the zone plan for simplicity.

Q3. Will the fire alarm contractor be providing the fire alarm control modules per zone depicted and will these be programmed to allow the smoke control programming to be operated as depicted? Where will these modules be installed?

A. We are reusing the existing FA devices, no additional FA modules are required.

Q4. Will there be a fire alarm plan?

A. Existing fire alarm plans will be shared with the successful bidder.

Q5. Space pressurization for adjacent zones – will there be a smoke control matrix that shows the “adjacent” zones for each scenario that would be possible? Ie if smoke is detected in the north Zone of Dorm H (SEF 05-1/SF 05-1) what would be the “adjacent” zones for the remaining portion of the sequence on sheet H5.08. Will this be provided for all smoke event possibilities?

RFB #2306 Addendum One Page 3 of 3

A. Smoke control matrix shall not be provided. The strategy is controlling the smoke at the path of egress. Supply air is provided where occupancy is anticipated. Exhaust air is provided at egress path.

Q6. S1.01 Roof Joist Strengthening Plan is listed on the cover sheet but not included in the set. Will this sheet be provided?

A. See attached sheet S1.01.

Q7. Can you please provide a reflected ceiling plan?

A. Reflected ceiling plan were not generated. Contractor shall coordinate ceiling mounted items in the field with engineer.

Q8. What is the framing requirement for the new fan openings? There is no spec.

A. See attached sheet S1.01.

Q9. Keynote 3 on plan H2.05 calls for an 8” emergency shut off valve for the natural gas pipe to the boiler. Can you please provide the specifications for the valve?

A. See revisions. 8” emergency shut off valve scope removed.

Emergency switch shall shut down the boilers power supply, causing the fuel supply to be shut off.

Q10. The grille schedule includes grille models PDDR-FR and SMD-FR. Is the ceiling in the dorms fire rated?

A. The ceiling in the dorms is not fire rated. See revisions for updated grille model.

Q11. The sequence of operations for RACU08-1, the constant volume reheat rooftop unit calls for the supply fan to modulate to maintain the space temperature but the reheat coils are already doing so. How should the supply fan speed vary?

A. RACU 08-1 is not a constant volume unit. It is a single zone VAV unit averaging with the (2) room temperature sensors. The VFD shall modulate the supply fan to maintain room sensor setpoint.

Attachments:

1. Drawing sheets – S1.01, H4.02

End Addendum 1

NOTE: DIMENSIONAL DATA IS TO BE OBTAINED BY SCALING ANY PORTION OF THIS DRAWING

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3 N.T.S.

KEYPLAN

1. ALL DETAILS AND SECTIONS SHOWN ON THIS SHEET ARE TYPICAL AND SHALL BE USED

WHEREVER A SIMILAR CONDITION OCCURS UNLESS NOTED OTHERWISE.

2. CONTRACTOR SHALL FIELD VERIFY ALL EXISTING DIMENSIONS AND CONDITIONS.

CONTRACTOR SHALL REPORT ANY DISCREPANCIES TO THE ENGINEER.

3. DAMAGE TO ADJACENT FACILITIES DURING CONSTRUCTION SHALL BE REPAIRED AT NO

ADDITIONAL COST TO THE OWNER.

4. CONTRACTOR SHALL REMOVE AND RESTORE CEILING MATERIAL AS NECESSARY TO GAIN

ACCESS AND PERFORM WORK. CONTRACTOR SHALL COORDINATE WORK WITH OTHER

TRADES. SEE MECHANICAL AND ELECTRICAL DRAWINGS.

5. WELDED CONNECTIONS SHALL BE IN ACCORDANCE WITH THE LATEST EDITION OF

ANSI/AWS D1.1 STRUCTURAL WELDING CODE, MADE WITH E70XX ELECTRODES AND

PERFORMED BY CERTIFIED WELDERS.

6. ALL SURFACES OF EXISTING BASE METAL IN CONTACT WITH NEW BASE METAL SHALL BE

CLEANED OF ALL DIRT, RUST, AND OTHER FOREIGN MATTER EXCEPT ADHERENT PAINT.

SURFACES TO BE WELDED SHALL BE THOROUGHLY CLEANED OF ALL FOREIGN MATTER.

7. STEEL ANGLE FRAMES SHALL BE SHOP PRIMED.

8. REPAIR EXISTING ROOF AFTER FRAME INSTALLATION.

9. CONTRACTOR SHALL REVIEW CONDITION AND ARRANGEMENT OF EXISTING STRUCTURAL

ELEMENTS TO ENSURE MODIFICATIONS DO NOT REQUIRE REMOVAL OR REPLACEMENT

OF ANY EXISTING CONDUITS, WIRES, DUCTWORK, PIPING, ACCESSORIES, OR LIGHT

FIXTURES. ANY MODIFICATIONS REQUIRED TO AUXILIARY SYSTEMS SHALL BE

COMMUNICATED TO OWNER AND ENGINEER PRIOR TO COMMENCING ANY WORK.

NOTES (THIS SHEET)

2"±1"

EXISTING JOIST

L3 x3 x 14 TYP, STRIP HORIZ LEG

2" AT EACH END

NOT TO SCALE

SECTIONANOT TO SCALE

ROOF OPENING FRAME2

A

CL JOIST

Δ

Δ

CL JOIST

Δ = DIMENSION BY MECHANICAL

CONTRACTOR

L3x3x1

4 , TYP

LOCATION OF

CONCENTRATED

LOAD ON JOIST

NOT TO SCALE

CONCENTRATED LOAD ON JOIST1

TYP

L 2 x 2 x 14, ONE SIDE ONLY

AT LOCATION OF BEARING

ON TOP CHORD

Y

Y = CLEAR DISTANCE BETWEEN EDGE OF

OPENING IN ROOF DECK AND EDGE OF

JOIST FLANGE. SEE NOTE.

NOTE: IF "Y" IS LESS THAN 10", ANGLE MAY BE OMITTED ALONG THAT EDGE

OF THE OPENING UNLESS THERE IS A ROOF CURB OR OTHER

CONCENTRATED LOAD ON THE ROOF DECK WITHIN THE DISTANCE

"Y". NOTIFY ENGINEER IF THIS CONDITION IS ENCOUNTERED.

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NOT TO SCALE

SECTIONA2

ALTERNATE

CONNECTION,

SEE SECTION A2

L4x3x1

4 LLV

CLIP x 0'-4"

EDGE OF JOIST

FLANGE

SEE SECTION A2 FOR

ALTERNATE CONNECTION

ALTERNATE

CONNECTION DETAIL

L4x4x 516 ON ONE SIDE OF WALL WITH

INTUMESCENT PAINT COATING FOR

1-HOUR PERFORMANCE ON STEEL

6" MIN 6" MIN

NOT TO SCALE

NEW CMU WALL OPENING3

3'-6" MAX

HVAC DUCT

FIRESTOP SEALANT FOR 1-HOUR

MINIMUM PERFORMANCE

NOTE: THIS DETAIL APPLIES TO WALL OPENINGS 16" TO 48" WIDE IN NON-LOAD

BEARING CONCRETE MASONRY BLOCK WALLS, 6" OR 8" NOMINAL WIDTH,

AND 6'-0" OR LESS OF WALL ABOVE THE PROPOSED OPENING. NOTIFY

ENGINEER IF OTHER CONDITIONS ARE ENCOUNTERED.

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FAN SCHEDULE

TAG SERVICE LOCATION

AIR VOL.

(CFM)

EXT. S.P.

(IN WC)

FAN

SPEED

(RPM)

MOTOR

HP DRIVE FAN TYPE

ELECTRICAL DATA

NOTES

DESIGN BASIS

VOLTS PHASE HZ MANUF. MODEL

EF 05-1 DORMITORY E SOUTH ROOF 1450 0.375 997 0.5 DIRECT DOWNBLAST 120 1 60 1,2 GREENHECK G-140-VG

EF 05-2 DORMITORY E NORTH ROOF 1450 0.375 997 0.5 DIRECT DOWNBLAST 120 1 60 1,2 GREENHECK G-140-VG

EF 06-1 DORMITORY F SOUTH ROOF 1600 0.375 997 0.5 DIRECT DOWNBLAST 120 1 60 1,2 GREENHECK G-140-VG

EF 06-2 DORMITORY F NORTH ROOF 1450 0.375 997 0.5 DIRECT DOWNBLAST 120 1 60 1,2 GREENHECK G-140-VG

EF 07-1 DORMITORY G SOUTH ROOF 1830 0.375 667 0.75 DIRECT DOWNBLAST 120 1 60 1,2 GREENHECK G-180-VG

EF 07-2 DORMITORY G NORTH ROOF 1830 0.375 667 0.25 DIRECT DOWNBLAST 120 1 60 1,2 GREENHECK G-180-VG

EF 07-3 DORMITORY G SOUTH ROOF 1150 0.375 888 0.25 DIRECT DOWNBLAST 120 1 60 1,2 GREENHECK G-140-VG

EF 07-4 DORMITORY G NORTH ROOF 910 0.375 1020 0.25 DIRECT DOWNBLAST 120 1 60 1,2 GREENHECK G-120-VG

EF 08-1 DORMITORY H ROOF 1990 0.375 693 0.75 DIRECT DOWNBLAST 120 1 60 1,2 GREENHECK G-180-VG

EF 08-2 DORMITORY H ROOF 1820 0.375 666 0.75 DIRECT DOWNBLAST 120 1 60 1,2 GREENHECK G-180-VG

SEF 05-1 E DORM SMOKE EXHAUST (NORTH) ROOF 14000 0.750 623 5 BELT UPBLAST 480 3 60 1 GREENHECK CUBE-360-VG

SEF 05-2 E DORM SMOKE EXHAUST (SOUTHWEST) ROOF 7500 0.750 626 2 BELT UPBLAST 480 3 60 1 GREENHECK CUBE-300-VG

SEF 05-3 E DORM SMOKE EXHAUST (SOUTHEAST) ROOF 7500 0.750 626 2 BELT UPBLAST 480 3 60 1 GREENHECK CUBE-300-VG

SEF 06-1 F DORM SMOKE EXHAUST (NORTH) ROOF 14000 0.750 623 5 BELT UPBLAST 480 3 60 1 GREENHECK CUBE-360-VG

SEF 06-2 F DORM SMOKE EXHAUST (SOUTH) ROOF 14000 0.750 623 5 BELT UPBLAST 480 3 60 1 GREENHECK CUBE-360-VG

SEF 07-1 G DORM SMOKE EXHAUST (SOUTHWEST) ROOF 7500 0.750 626 2 BELT UPBLAST 480 3 60 1 GREENHECK CUBE-300-VG

SEF 07-2 G DORM SMOKE EXHAUST (SOUTHEAST) ROOF 7500 0.750 626 2 BELT UPBLAST 480 3 60 1 GREENHECK CUBE-300-VG

SEF 07-3 G DORM SMOKE EXHAUST (NORTH) ROOF 14000 0.750 623 5 BELT UPBLAST 480 3 60 1 GREENHECK CUBE-360-VG

SEF 08-1 H DORM SMOKE EXHAUST (WEST) ROOF 7500 0.750 626 2 BELT UPBLAST 480 3 60 1 GREENHECK CUBE-300-VG

SEF 08-2 H DORM SMOKE EXHAUST (EAST) ROOF 7500 0.750 626 2 BELT UPBLAST 480 3 60 1 GREENHECK CUBE-300-VG

SF 05-1 E DORM PRESSURIZATION (NORTH) ROOF 12000 0.375 818 5 BELT ROOF SUPPLY 480 3 60 1,2 GREENHECK RSF-200-50

SF 05-2 E DORM PRESSURIZATION (SOUTHWEST) ROOF 6000 0.375 1178 1.5 BELT ROOF SUPPLY 480 3 60 1,2 GREENHECK RSF-180-15

SF 05-3 E DORM PRESSURIZATION (SOUTHEAST) ROOF 6000 0.375 1178 1.5 BELT ROOF SUPPLY 480 3 60 1,2 GREENHECK RSF-180-15

SF 06-1 F DORM PRESSURIZATION (NORTH) ROOF 12000 0.375 818 5 BELT ROOF SUPPLY 480 3 60 1,2 GREENHECK RSF-200-50

SF 06-2 F DORM PRESSURIZATION (SOUTH) ROOF 12000 0.375 818 5 BELT ROOF SUPPLY 480 3 60 1,2 GREENHECK RSF-200-50

SF 07-1 G DORM PRESSURIZATION (SOUTHWEST) ROOF 6000 0.375 1178 1.5 BELT ROOF SUPPLY 480 3 60 1,2 GREENHECK RSF-180-15

SF 07-2 G DORM PRESSURIZATION (SOUTHEAST) ROOF 6000 0.375 1178 1.5 BELT ROOF SUPPLY 480 3 60 1,2 GREENHECK RSF-180-15

SF 07-3 G DORM PRESSURIZATION (NORTH) ROOF 12000 0.375 818 5 BELT ROOF SUPPLY 480 3 60 1,2 GREENHECK RSF-200-50

SF 08-1 H DORM PRESSURIZATION (WEST) ROOF 6000 0.375 1178 1.5 BELT ROOF SUPPLY 480 3 60 1,2 GREENHECK RSF-180-15

SF 08-2 H DORM PRESSURIZATION (EAST) ROOF 6000 0.375 1178 1.5 BELT ROOF SUPPLY 480 3 60 1,2 GREENHECK RSF-180-15

VARIABLE AIR VOLUME BOX SCHEDULE

TAG SERVICE LOCATION

MAX AIR

VOL (CFM)

MIN AIR

VOL (CFM)

HEATING

AIR VOL

(CFM)

INLET

SIZE (DIA.

IN.) MAX NC SP (IN WC) NOTES

DESIGN BASIS

MANUF. MODEL

V 05-1 E011 E011 140 60 140 6 25 0.25 TRANE VCC

V 05-2 E002 E002 300 60 300 6 30 0.25 TRANE VCC

V 05-3 E003 E003 140 60 140 6 30 0.25 TRANE VCC

V 05-4 E006 E006 180 60 230 6 30 0.25 TRANE VCC

V 05-5 E005 E005 140 60 340 6 30 0.25 TRANE VCC

V 05-6 E021 E021 300 60 300 6 30 0.25 TRANE VCC

V 05-7 E022 E022 140 60 140 6 30 0.25 TRANE VCC

V 05-8 E023 E023 140 60 140 6 30 0.25 TRANE VCC

V 05-9 E025 E025 140 60 140 6 30 0.25 TRANE VCC

V 06-1 F003 F003 150 60 140 6 30 0.25 TRANE VCC

V 06-2 F005 F005 140 60 140 6 30 0.25 TRANE VCC

V 06-3 F006 F006 150 60 200 6 30 0.25 TRANE VCC

V 06-4 F007 F007 300 60 300 6 30 0.25 TRANE VCC

V 06-5 F020, F021 F021 280 60 280 6 30 0.25 TRANE VCC

V 06-6 F023 F023 140 60 140 6 30 0.25 TRANE VCC

V 06-7 F024 F024 140 60 215 6 30 0.25 TRANE VCC

V 06-8 F025, F037 F025 440 105 300 8 30 0.25 TRANE VCC

V 06-9 F001 F001 810 165 630 10 30 0.25 TRANE VCC

V 07-1 G004 G004 80 60 80 6 30 0.25 TRANE VCC

V 07-2 G007 G007 80 60 80 6 30 0.25 TRANE VCC

V 07-3 G003 G003 190 60 190 6 30 0.25 TRANE VCC

V 07-4 G006 G006 190 60 190 6 30 0.25 TRANE VCC

V 07-5 G002 G002 240 115 240 6 30 0.25 TRANE VCC

V 07-6 G014 G014 240 60 240 6 30 0.25 TRANE VCC

V 07-7 G015 G015 110 60 110 6 30 0.25 TRANE VCC

V 07-8 G023 G024 160 60 160 6 30 0.25 TRANE VCC

V 07-9 G017E G017E 110 60 110 6 30 0.25 TRANE VCC

V 07-10 G041 G041 600 120 300 8 30 0.25 TRANE VCC

V 07-11 G039 G039 600 120 300 8 30 0.25 TRANE VCC

V 07-12 G027 G027 240 115 240 6 30 0.25 TRANE VCC

V 07-13 G023 G023 190 60 190 6 30 0.25 TRANE VCC

V 07-14 G031 G031 190 60 190 6 30 0.25 TRANE VCC

V 07-15 G032 G032 80 60 185 6 30 0.25 TRANE VCC

V 07-16 G029 G029 80 60 80 6 30 0.25 TRANE VCC

V 07-17 H001 H001 270 60 270 6 30 0.25 TRANE VCC

V 07-18 G051 G051 270 60 270 6 30 0.25 TRANE VCC

V 07-19 G001 G001 570 115 400 8 30 0.25 TRANE VCC

V 07-20 G017A, G017B, G017C, G017D G017 300 60 300 6 30 0.25 TRANE VCC

NOTES:

1. PROVIDE WITH MANUFACTURERS UNIT DISCONNECT SWITCH AND ROOF CURB.

2. PROVIDE WITH MOTORIZED DAMPER IN DUCT RISER. COORDIANTE MOTORIZED DAMPERS WITH ELECTRICAL AND CONTROLS CONTRACTOR. REFER TO SCHEDULE ON SHEET H4.03.

NO. DATE REVISION

1 02/17/23 ISSUED FOR BID

2 03/15/23 ADDENDUM 1

H4.02