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1

ADDENDUM # 1

December 9, 2020 Project Name: Advanced Manufacturing Center Renovation Owner: Wayne Community College Architect: Moseley Architects SCO ID #: 16-15906-01A From: Daniels & Daniels Construction Company Greg Hedrick [email protected] Message: Bidders are hereby informed that the following additions, deletions, changes and/or clarifications supersede and supplement the Contract Documents for the above referenced projects. It forms a part of the previously issued documents dated November 6, 2020. This Addendum is hereby made a part of the Contract Documents to the same extent as if originally included therein. This Addendum must be acknowledged on the Bid Form provided in the Contract Documents and shall be placed with the Contract Documents. General: 1) The bid date for this project has changed to December 17, 2020. Bids need to be dropped off in a sealed, marked envelope to 3000 Wayne Memorial Drive, Walnut Building Room 104, Goldsboro, NC 27534. EMAILED BIDS WILL NOT BE ACCEPTED. 2) Once bid has been hand delivered at the address provided, each bidder shall leave the room and not return. Daniels & Daniels will initiate a Zoom meeting as directly as possible after 2:00 pm. All bidders may attend via the following link: Join Zoom Meeting https://us02web.zoom.us/j/87380822176?pwd=bk82N3UrL0NGUmpuVGdncHFqcmIxdz09 Meeting ID: 873 8082 2176 Passcode: 259957 One tap mobile +16465588656,,87380822176#,,,,,,0#,,259957# US (New York) +13017158592,,87380822176#,,,,,,0#,,259957# US (Washington D.C) Dial by your location

https://us02web.zoom.us/j/87380822176?pwd=bk82N3UrL0NGUmpuVGdncHFqcmIxdz09

Advanced Manufacturing Center Renovations/WCC

2

+1 646 558 8656 US (New York) +1 301 715 8592 US (Washington D.C) +1 312 626 6799 US (Chicago) +1 669 900 9128 US (San Jose) +1 253 215 8782 US (Tacoma) +1 346 248 7799 US (Houston) Meeting ID: 873 8082 2176 Passcode: 259957 Find your local number: https://us02web.zoom.us/u/k9j1t9fJ1 3) Bids will be opened and read aloud. Bid tabulation will be developed and made available upon request once all figures and required bid information has been confirmed. Substitution Requests: Subject to requirements of plans and specifications, the Architect has requested if any substitutions are to be made, they follow the project manual for instructions. Revisions to Specifications: 1) Table of Contents ADD Section 233424 – Specialty Exhaust Systems 2) Section 230993 – Sequences of Operations for HVAC Controls See bolded, underlined, and struck-thru text in section 2.8 for revisions. Revisions to Plans: 1) DRAWING A2.1

See clouded areas on A2.1 for revisions 2) DRAWING M0.2

See clouded areas on M0.2 for revisions 3) DRAWING M1.2




See clouded areas on M7.1 for revisions

End of Addendum #1 Attached: Addendum 01 Combined Specifications and Plans (35 pages) Product Substitution Request (1 page)

ADDENDUM 01

ADVANCED MANUFACTURING

CENTER RENOVATION Wayne Community College

Goldsboro, North Carolina

SCO ID: 16-15906-01A

Architect’s Project Number: 539101

Prepared by

MOSELEY ARCHITECTS

911 N. WEST STREET

SUITE 205

RALEIGH, NORTH CAROLINA 27603

DATE OF ISSUE – December 8, 2020

ADVANCED MANUFACTURING CENTER RENOVATIONS

WAYNE COMMUNITY COLLEGE


Architect’s Project No: 593101

SCO ID# 16-15906-01A

December 8, 2020 ADDENDUM NO. 01 Page 1 of 1

GENERAL:

Planholders are requested to insert this Addendum in the front of their Project Manual. Inform all

concerned that the Bidding Documents are modified by this Addendum.

The following modifications and clarifications are hereby made a part of the Bidding Documents and

supersede or otherwise modify the provisions of the published Project Manual and Drawings, dated

December 8, 2020.

Refer to the Drawings, Specification Sections, or other Documents, if any, attached to this Addendum,

which are hereby made a part of this Addendum.

MODIFICATIONS TO THE PROJECT MANUAL:

ADD new Documents in their entirety, noted as Addendum 01, dated December 8, 2020.

TABLE OF CONTENTS

ADD Section 233424 – Specialty Exhaust Systems

SECTION 230993 – SEQUENCES OF OPERATIONS FOR HVAC CONTROLS

See bolded, underlined, and struck-thru text in section 2.8 for revisions

MODIFICATIONS TO THE DRAWINGS:

DRAWING A2.1

See clouded areas on A2.1 for revisions

DRAWING M0.2


DRAWING M1.2


DRAWING M3.1


DRAWING M5.2


DRAWING M7.1


REFER TO SPECIFICATIONS AND DRAWINGS ATTACHED TO THE END OF THIS

ADDENDUM

END OF ADDENDUM NO 01





SCO ID# 16-15906-01A

Addendum 01 – 12/8/20 TABLE OF CONTENTS 001100 - 1

TABLE OF CONTENTS

DIVISON 00 – PROCUREMENT AND CONTRACTING REQIREMENTS

SEALS PAGE

TABLE OF CONTENTS

FORM OF DESIGN BUILD CONSTRUCTION CONTRACT (DB1)

INSTRUCTIONS TO BIDDERS

GENERAL CONDITIONS OF CONTRACT FOR DESIGN BUILD CONSTRUCITON

GUIDELINE FOR MBE PARTICIPATION IN STATE CONSTRUCTION CONTRACTS

DIVISION 01 – GENERAL REQUIREMENTS

011000 Summary

012300 Alternates

012500 Substitution Procedures

013100 Project Management and Coordination

013200 Construction Progress Documentation

013300 Submittal Procedures

014000 Quality Requirements

014200 References

014520 Testing, Adjusting, and Balancing

015000 Temporary Facilities and Controls

016000 Product Requirements

017300 Execution

017419 Construction Waste Management

017700 Closeout Procedures

017839 Project Record Documents

019113 General Commissioning Requirements

DIVISION 02 – EXISTING CONDITIONS

024119 Selective Structure Demolition

028000 Hazardous Materials Remediation

DIVISION 03

033000 Cast-In-Place Concrete

035416 Hydraulic Cement Underlayment

DIVISION 04

042000 Unit Masonry





SCO ID# 16-15906-01A


DIVISION 05

051200 Structural Steel Framing

061600 Sheathing

054000 Cold Formed Metal Framing

DIVISION 06

061000 Rough Carpentry

064023 Interior Architectural Woodwork

DIVISION 07

072100 Thermal Insulation

072419 EIFS

072726 Fluid Applied Vapor Retarding Membrane Air Barriers

074216 Insulated Core Metal Wall Panels

075424 TPO Roofing – Minor Alterations

076201 Flashing, Sheet Metal and Roofing Accessories

078446 Fire Resistive Joint Systems

079200 Joint Sealants

079500 Expansion Control

DIVISION 08

081113 Steel Doors and Frames

081416 Flush Wood Doors

084113 Aluminum Entrances, Storefront

084523 Fiberglass Sandwich Panel Assemblies

087100 Door Hardware

088000 Glazing

088300 Mirrors

DIVISION 09

092216 Cold Formed Steel Framing - Non-Structural

092900 Gypsum Board

093000 Tiling

095113 Acoustical Panel Ceilings

096513 Resilient Base and Accessories

096519 Resilient Tile Flooring

096724 High Performance Floor Coating System





SCO ID# 16-15906-01A


DIVISION 9 (Cont.)

099100 Interior Painting

DIVISION 10

101400 Signage

102600 Wall Protection

104313 Defibrillators and Cabinets

104400 Fire Protection Specialties

DIVISION 11 – 14

110000 Misc Equipment

DIVISION 21 – FIRE PROTECTION

Listed on Drawing Sheets

DIVISION 22 – PLUMBING

220500 Common Work Results for Plumbing

220523 General-Duty Valves for Plumbing Piping

220529 Hangers and Supports for Plumbing Piping and Equipment

220553 Identification for Plumbing Piping and Equipment

220700 Plumbing Insulation

221116 Domestic Water Piping

221119 Domestic Water Piping Specialties

221316 Sanitary Waste and Vent Piping

221319 Sanitary Waste Piping Specialties

224000 Plumbing Fixtures

DIVISION 23 – MECHANICAL

230500 Common Work Results for HVAC

230513 Motors for HVAC Equipment

230514 Variable Speed Drives

230517 Sleeves and Sleeve Seals for HVAC Piping

230519 Meters and Gauges for HVAC Piping

230523 General Duty Valves for HVAC Piping

230529 Hangers and Supports for HVAC Piping and Equipment

230548 Vibration Control for HVAC

230553 Identification for HVAC Piping and Equipment

230700 HVAC Insulation





SCO ID# 16-15906-01A


DIVISION 23 – MECHANICAL (Cont.)

230900 Building Automation System

230993 Sequences of Operations for HVAC Controls

232113 Hydronic Piping

232123 Hydronic Pumps

232300 Refrigerant Piping

233113 Metal Ducts

233300 Air Duct Accessories

233423 HVAC Power Ventilators

233424 Specialty Exhaust Systems – AD-01

233600 Air Terminal Units

233713 Diffusers, Registers, and Grilles

234100 Particulate Air Filtration

238126 Split System Air Handling Units

238216 Hydronic Air Coils

DIVISION 26 – ELECTRICAL

260519 Low-voltage Electrical Power Conductors and Cables

260526 Grounding and Bonding for Electrical Systems

260529 Hangers and Supports for Electrical Systems

260533 Raceways and Boxes for Electrical Systems

260544 Sleeves and Sleeve Seals for Electrical Raceways and Cabling

260553 Identification for Electrical Systems

260923 Lighting Control Devices

261219 Padmounted, Liquid-filled, Medium-voltage Transformers

262413 Switchboards

262416 Panelboards

262726 Wiring Devices

265119 Led Interior Lighting

DIVISION 27 – COMMUNICATIONS

270500 Common Work Results for Communications Systems

271100 Communications Equipment Room Fittings





SCO ID# 16-15906-01A

Addendum 01 – 12/8/20 SEQUENCE OF OPERATIONS FOR HVAC CONTROLS 230993 - 1

SECTION 230993 - SEQUENCE OF OPERATIONS FOR HVAC CONTROLS

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Provisions of the Contract and Contract Documents apply to this Section.

1.2 SUMMARY

A. This Section includes control sequences for HVAC systems, subsystems, and equipment.

B. Related Sections include the following:

1. Division 23 Section "Building Automation System” for control equipment, devices and

submittal requirements.

1.3 DEFINITIONS

A. BAS: Building automation system.

B. CO2: Carbon dioxide.

C. DDC: Direct digital control.

D. PPM: Parts per million.

E. RPM: Revolutions per minute.

F. VFD: Variable-frequency drive

1.4 GENERAL REQUIREMENTS OF THIS SECTION

A. Control sequences shall be accomplished in accordance with control drawings and the

sequences specified in this section. It is the intent of this section to utilize sequences included

in pre-programmed controllers when such sequences provide the intended operation.

B. Points may not be deleted without prior approval from the Architect.

C. Every attempt has been made to indicate all required points on the control drawings.

Occasionally an additional point, or points, may be required to accomplish a specified sequence.

The contractor performing work under this section shall understand the work to be implied and





SCO ID# 16-15906-01A


required by the contract documents. Additional hardware and software required shall be

provided under section “Building Automation System” at no additional cost to the owner.

1. Such points include:

a. Sensors of all types whether or not specified under section “Building Automation

System”

b. Flow measuring stations.

c. Wiring, conduit, and related devices such as relays.

2. Exceptions:

a. Equipment and devices covered under sections other than “Building Automation

System.”

1.5 DISPLAY GRAPHICS:

A. Include system schematic for each system. Indicate all points in system on at least one graphic.

B. Indicate all commanded values and temperatures.

C. Indicate all sensed temperatures.

D. Indicate all alarms.

E. Indicate all status points.

F. Indicate all monitored conditions.

1.6 WARRANTY

A. Provide all services, materials and equipment necessary for the successful operation of the

entire BAS system for a period of one year beginning on the date of Final Acceptance.

1.7 SUBMITTALS

A. Refer to section “Building Automation System.”

PART 2 - SEQUENCES

2.1 SET POINTS: Unless indicated otherwise all set points shall be adjustable from the head end.

2.2 OCCUPIED / UNOCCUPIED

A. The BAS shall institute occupied and unoccupied control sequences based on a time-of-day

schedule furnished by the Owner.





SCO ID# 16-15906-01A


B. The Owner shall have the capability to program holidays and special functions.

C. The Owner shall have the ability to override occupied and unoccupied operation of each piece

of equipment from the head end.

2.3 OPTIMUM START/STOP:

A. The BAS shall institute optimum start strategies for morning warm up and cool down functions.

Equipment shall start early enough to restore occupied temperature set points 30 minutes prior

to occupancy.

B. The BAS shall institute optimum stop strategies for shutting down units before scheduled

unoccupied operation to allow zones to coast to unoccupied operation without affecting

occupied set points.

2.4 OUTSIDE AIR SENSORS:

A. Temperature: The BAS shall monitor outside air temperature as sensed by the outside air

temperature sensor.

B. Humidity: The BAS shall monitor outside air relative humidity as sensed by the outside air

humidity sensor.

2.5 GENERAL SYSTEM REQUIREMENTS

A. System Failure: The control system shall be installed to fail safe to heating mode.

1. All air handling units shall fail with outside air dampers closed.

2. Night setback shall fail to occupied mode.

3. All interlocked fans shall be de-energized with dampers closed.

2.6 VAV SPLIT AIR HANDLING UNIT SERVING TERMINAL UNITS (AHU-1/CU-1)

A. General: These air handling units include a variable-speed supply fan, hot water pre-heat coil,

and direct expansion cooling coil. A condensing unit is located on grade with modulating and

staged direct expansion cooling. They provide temperature control and humidity control for

terminal units. A separate return fan is provided.

B. Initial Set Points:

1. General:

a. Freezestat: 38F.

b. Enthalpy High Limit: 28.0 BTU/lb

2. Occupied:





SCO ID# 16-15906-01A


a. Minimum Leaving Air Temperature: 55F.

b. Maximum Leaving Air Temperature: 65ºF.

c. Space Maximum Relative Humidity: 50% RH

d. Unit Pressurization Differential: Refer to Equipment Schedule on Drawings.

3. Unoccupied:

a. Minimum Leaving Air Temperature: 55F.

b. Maximum Leaving Air Temperature: 65ºF.

c. Space Maximum Relative Humidity: 60% RH

d. Unit Pressurization Differential: N/A (Outside air dampers closed/relief fan off)

C. Enable/Disable:

1. Occupied Operation: During occupied hours, the unit shall be enabled, the supply and

return fans shall be started, and dampers shall modulate in accordance with applicable

sequences below.

2. Unoccupied Operation: During unoccupied hours, the unit shall be disabled, the supply

and return fans shall be off, outdoor air damper shall be closed, relief damper shall be

closed, return damper shall be open, the cooling coil control valve shall be closed, and the

preheat coil control valve shall be fully open.

a. Unoccupied Heating: Should the unoccupied space temperature below the

unoccupied heating space temperature set point, the unit shall be started in the

warm-up mode until the space temperature rises 5F below the unoccupied heating

space temperature set point.

b. Unoccupied Cooling: Should the unoccupied space temperature rise above the

unoccupied cooling space temperature set point, the unit shall be started in the

cool-down mode until the space temperature falls 5F below the unoccupied

cooling space temperature set point.

c. Unoccupied Humidity Control: If the space relative humidity rises above the

unoccupied space relative humidity set point (as sensed by the space relative

humidity sensor), the unit shall operate in the cool-down mode until the relative

humidity drops 5% RH below the unoccupied space relative humidity set point.

3. Unoccupied Maintenance Operation: When placed in this mode, the BAS shall operate

as defined in “Unoccupied Maintenance Mode” above.

4. Warm-up Operation: The BAS shall optimize the early start of the unit in warm-up mode

to reach the occupied space heating set point by the occupied time. During warm-up the

supply fan shall be started and controlled by static pressure control, the return fan shall be

started, the return damper shall be open, the relief and outside air dampers shall be

closed, and the preheat coil control valves shall open fully.

5. Cool-down Operation: The BAS shall optimize the early start of the unit in cool-down

mode to reach the occupied space cooling set point by the occupied time. During cool-

down the supply fan shall be started and controlled by static pressure control, the return

fan shall be started, the return damper shall be open, the relief and outside air dampers

shall be closed, and the cooling coil control valve shall open fully.





SCO ID# 16-15906-01A


D. Startup: Start time shall be based on the BAS optimum start programming in accordance with a

predetermined schedule to be furnished by the Owner and programmed into the BAS. The

outside air damper shall remain closed while the unit operates in warm-up/cool-down mode to

restore occupied set points unless there are cooling economizer conditions. At occupancy time,

the BAS shall begin to modulate the outside air damper in accordance with its sequence of

control.

E. Economizer Mode: Whenever outside air enthalpy is less than return air enthalpy and cooling is

required, economizer operation shall be enabled.

1. Economizer operation shall be available twenty-four hours per day and shall override

unoccupied damper controls.

2. Economizer Mode shall be disabled during dehumidification mode.

F. Supply Fan Control:

1. During unoccupied hours, the fan shall be deactivated. The fan shall be started at its

minimum speed as required to control unoccupied set points.

2. During occupied hours, the BAS shall start the supply fan at its minimum speed. The

required speed shall be determined by the equipment manufacturer and shall be instituted

as the minimum fan speed.

3. Speed Control:

a. A static pressure sensor shall be located at a point two-thirds of the distance from

the supply fan to the end of the longest trunk duct. Locations which result in

extreme variations in static pressure due to terminal box operation shall be

avoided. The static pressure sensor shall function as the control input to the BAS

(and thus to the supply fan VFD) such that a fall in down-duct static pressure will

result in a proportional increase in supply fan speed to maintain set point. The

static pressure set point shall be determined in accordance with “Down-duct Static

Pressure Set Point” below. On a rise in down-duct static pressure, the reverse shall

occur. Initial maximum static pressure set-point shall be 1.0 inches W.G. and shall

be adjustable.

b. Down-duct Static Pressure Set Point: The BAS shall continuously monitor the

damper position of all terminal units. When any damper opens beyond the

maximum set point (initially 95%), the BAS shall reset the down-duct static

pressure set point upward by 5% (adjustable) of the maximum static pressure set

point. This shall occur at 10 minute (adjustable) intervals until no damper is more

than 95% open, or the static pressure set point has been reset upward to the system

maximum setting, or the VFD is at its maximum setting. When all dampers are

opened less than the minimum set point (initially 85%), the BAS shall reset the

down-duct static pressure set-point downward by 5% (adjustable) of the maximum

system static pressure set point. This shall occur at 10 minute (adjustable)

intervals until any damper is more than 85% open, or the VFD is at its minimum

setting.

c. A second static pressure sensor located in the supply fan discharge duct shall

function as a safety input to the BAS. An increase in fan discharge static pressure

above set point (initially 4 inches w.g.) shall cause the BAS to stop the supply fan.





SCO ID# 16-15906-01A


An alarm shall be sent to the BAS that the unit has been shut down due to fan

over-speed.

4. Drive Malfunction: Should the VFD malfunction as indicated by drive alarm circuit, an

alarm shall be sent to the head end. The fan shall continue to operate unless deactivated

by the VFD protection circuitry.

5. Fan Failure Alarm: Should the supply fan fail (sensed by its current sensing relay), the

unit shall be disabled, and an alarm shall be sent to the head end identifying the unit and

stating that the supply fan has failed.

G. Return Fan Control (F-3):

1. During occupied hours and during economizer operation, the fan shall be started.

a. Speed Control: The BAS shall modulate return fan speed to maintain building

pressurization by tracking the supply airflow less an offset.

b. Minimum Fan Speed: Motor speeds below the manufacturer’s recommended

minimum RPM shall not be permitted.

2. During unoccupied hours, the fan shall be deactivated.

3. Fan Failure Alarm: Should the return fan fail (as sensed by its current sensing relay), an

alarm shall be sent to the head end identifying the unit and stating that the return fan has

failed. Economizer operation shall cease, outdoor air damper shall close, and the return

damper shall open.




H. Dehumidification Mode: During occupied or unoccupied operation when the relative humidity

(as sensed by the return duct relative humidity sensor) rises above set point, the unit shall be

placed in dehumidification mode. The BAS shall reset the leaving air temperature set point to

minimum. The unit shall remain in dehumidification mode until the space relative humidity

drops to 5% RH below set point at which time the BAS shall return to normal leaving air

temperature reset control. Refer to applicable paragraphs for operation of valves, dampers, and

fans.

I. Direct Expansion Cooling:

1. During a call for cooling the lead circuit shall be enabled (modulation shall occur

internally with refrigerant APR hot gas bypass valve) to maintain unit leaving air

temperature at set point. If the unit leaving air temperature rises 4°F (adjustable) above

set point after 5 minutes (adjustable) with the lead circuit only, the lag circuit shall be

enabled to increase cooling capacity. If the unit leaving air temperature drops 3°F

(adjustable) below set point after 5 minutes (adjustable), the lag circuit shall be disabled.

If the leaving air temperature continues to drop 3°F (adjustable) below set point after 5

minutes (adjustable), the lead circuit shall be disabled. The lead circuit shall then not be

cycled back on until the leaving air unit leaving air temperature rises 4°F (adjustable)

above set point after 5 minutes (adjustable). This control logic shall be reviewed by the

air handling unit manufacturer and refrigerant modulation APR hot gas bypass valve

manufacturer for approval.





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J. Leaving Air Temperature Reset:

1. Whenever the supply fan reaches its minimum speed, the leaving air temperature set

point shall be increased 1ºF until the leaving air temperature set point is reset up to its

maximum.

2. Whenever the supply fan reaches 50% speed, the leaving air temperature set point shall

be reduced 1ºF until the leaving air temperature set point is reset down to its minimum.

K. Preheat Coil Control Valve: When the supply is started, the preheat coil control valve shall

modulate to maintain the minimum leaving air temperature (as sensed by the temperature sensor

located in the discharge duct) at the minimum leaving air temperature set point. The BAS shall

confirm the DX cooling coil is disabled before modulating the preheat coil control valve.

1. Whenever the supply fan speed reaches its minimum, the preheat coil control valve shall

modulate to increase the leaving air temperature by 1ºF until the leaving air temperature

is reset up to its maximum set point.

2. Whenever the supply fan speed reaches 50% of its RPM range, the cooling coil control

valve shall modulate to reduce the leaving air temperature by 1ºF until the leaving air

temperature is reset down to its minimum set point.

3. Following dehumidification mode, the preheat coil control valve shall remain closed for a

30 minute, adjustable time period to prevent warm air from evaporating moisture off a

wet cooling coil and causing humidification.

L. Return Damper:

1. Unoccupied: Damper shall remain fully open. Damper end switch shall confirm the

damper fully open. If the damper fails to open, an alarm shall be sent to the head end

identifying the unit and stating that the return air damper failed to open.

2. Occupied: The BAS shall modulate return damper as required to provide scheduled

minimum outdoor air (as sensed by the damper air flow measuring system).

3. Economizer: The return damper shall be closed. The damper end switch shall confirm

that the damper is closed. If the damper fails to close, an alarm shall be sent to the head

end identifying the unit and stating that the return damper failed to close.

M. Outdoor Air Damper:

1. Unoccupied: Damper shall remain closed. Damper end switch shall confirm the damper

closed. If damper fails to close, an alarm shall be sent to the head end identifying the unit

and stating that the outdoor damper failed to close.

2. Occupied: The damper shall modulate to its minimum airflow position. Damper end

switch shall confirm the damper open. If damper fails to open, an alarm shall be sent to

the head end identifying the unit and stating that the outdoor damper failed to close. If the

damper fails bring in design outdoor air within +-10% after 5 minutes (adjustable), an

alarm shall be sent to the head end identifying the unit and stating that the unit is not

providing design outdoor air.





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3. Economizer: The damper shall be fully open. Damper end switch shall confirm the

damper open. If damper fails to open, an alarm shall be sent to the head end identifying

the unit and stating that the outdoor damper failed to close.

N. Relief Air Damper:

1. Unoccupied: The BAS shall close the damper.

2. Occupied: The BAS shall close the damper.

3. Economizer: The BAS shall open the damper. If damper fails to open, an alarm shall be

sent to the head end identifying the unit and stating that the relief damper failed to open.

O. Freeze Protection:

1. If the preheat coil discharge air temperature (temperature at the entering face of the

chilled water coil) falls to set point, the unit shall be disabled. This function shall be reset

automatically by the BAS when the temperature reaches 5F above set point.

P. Life Safety: A smoke detector located in the return air duct shall, upon detection of products of

combustion, signal the building fire alarm system and shut down the fans. Refer to floor plans

for quantity. This function shall be manually reset from the unit and shall be so identified on

the head-end graphics. An alarm shall also be provided to the BAS head-end.

Q. System Safety: Whenever the supply fan is stopped or airflow ceases for any reason (as sensed

by the motor status sensing circuit), the supply and relief fans shall be deactivated, power to the

preheat coil control valve shall be removed and the valve shall position open. The outdoor air

damper shall be closed. The relief damper shall be closed. The chilled water valve shall be

closed. In all modes of operation, commanded position values for all control devices such as

dampers and valves shall be readable from the head-end.

R. Filter Change Alarm: The differential pressure across the filters shall be monitored, where if

the differential pressure exceeds 1” wg (adjustable), an alarm is issued to BAS.

2.7 CONSTANT VOLUME SPLIT AIR HANDLING UNIT (AHU-2/CU-2)

A. General: These air handling units include a constant volume supply fan w/VFD, hot water pre-

heat coil, and direct expansion cooling coil. A condensing unit is located on grade with

modulating and staged direct expansion cooling. They provide temperature control and

humidity control for terminal units. A separate return fan is provided.

B. Initial Set Points:

1. General:

a. Minimum Cooling Coil Discharge Temperature: 55ºF (Reset up to 65ºF maximum)

b. Initial Heating Coil Discharge Temperature: 85°F (adjustable)

2. Occupied:

a. Cooling Space Temperature: 75F.

b. Heating Space Temperature: 70F.

c. Space Relative Humidity: 50% RH





SCO ID# 16-15906-01A


3. Unoccupied:

a. Cooling Space Temperature: 85F.

b. Heating Space Temperature: 55F.

c. Space Relative Humidity: 60% RH

C. Enable/Disable:

1. Occupied Operation: During occupied hours, the unit shall be enabled, the supply fan

shall be started, and dampers shall modulate in accordance with applicable sequences

below.

2. Unoccupied Operation: During unoccupied hours, the unit shall be disabled, the supply

fan shall be off, outdoor air damper shall be closed, the cooling coil control valve shall be

closed, and the preheat coil control valve shall be fully open.

a. Unoccupied Heating: Should the unoccupied space temperature below the

unoccupied heating space temperature set point, the unit shall be started in the

warm-up mode until the space temperature rises 5F below the unoccupied heating

space temperature set point.

b. Unoccupied Cooling: Should the unoccupied space temperature rise above the

unoccupied cooling space temperature set point, the unit shall be started in the

cool-down mode until the space temperature falls 5F below the unoccupied

cooling space temperature set point.

c. Unoccupied Humidity Control: If the space relative humidity rises above the

unoccupied space relative humidity set point (as sensed by the space relative

humidity sensor), the unit shall operate in the cool-down mode until the relative

humidity drops 5% RH below the unoccupied space relative humidity set point.

3. Unoccupied Maintenance Operation: When placed in this mode, the BAS shall operate

as defined in “Unoccupied Maintenance Mode” above.

4. Warm-up Operation: The BAS shall optimize the early start of the unit in warm-up mode

to reach the occupied space heating set point by the occupied time. During warm-up the

supply fan shall be started, the outside air damper shall open, and the preheat coil control

valves shall open fully.

5. Cool-down Operation: The BAS shall optimize the early start of the unit in cool-down

mode to reach the occupied space cooling set point by the occupied time. During cool-

down the supply fan shall be started, the outside air damper shall be open, and the cooling

coil control valve shall open fully.

D. Startup: Start time shall be based on the BAS optimum start programming in accordance with a

predetermined schedule to be furnished by the Owner and programmed into the BAS. The

outside air damper shall remain closed while the unit operates in warm-up/cool-down mode to

restore occupied set points unless there are cooling economizer conditions. At occupancy time,

the BAS shall begin to modulate the outside air damper in accordance with its sequence of

control.

E. Economizer Mode: Whenever outside air enthalpy is less than return air enthalpy and cooling is

required, economizer operation shall be enabled.





SCO ID# 16-15906-01A


1. Economizer operation shall be available twenty-four hours per day and shall override

unoccupied damper controls.

2. Economizer Mode shall be disabled during dehumidification mode.

F. Supply Fan Control:

1. During unoccupied hours, the fan shall be deactivated. The fan shall be started as

required to control unoccupied set points.

2. During occupied hours, the BAS shall signal the supply fan to start. The supply fan shall

ramp up slowly to design airflow. The required speed shall be determined during balancing

and shall be instituted as the fan speed set point.




4. Fan Failure Alarm: Should the supply fan fail (sensed by its current sensing relay), the

unit shall be disabled, and an alarm shall be sent to the head end identifying the unit and

stating that the supply fan has failed.

G. Exhaust Fan (F-1) Control:

1. During occupied hours and during economizer operation, the fan shall be started.

2. During unoccupied hours, the fan shall be deactivated. If AHU-2 is enabled during

unoccupied mode, exhaust fan F-1 shall be started.

3. Fan Failure Alarm: Should the exhaust fan fail (as sensed by its current sensing relay), an

alarm shall be sent to the head end identifying the unit and stating that the exhaust fan has

failed.

H. Dehumidification Mode: During occupied or unoccupied operation when the relative humidity

(as sensed by the space relative humidity sensor) rises above set point, the unit shall be placed

in dehumidification mode. The BAS shall reset the leaving air temperature set point to

minimum. The unit shall remain in dehumidification mode until the space relative humidity

drops to 5% RH below set point at which time the BAS shall return to normal leaving air

temperature reset control. Refer to applicable paragraphs for operation of valves, dampers, and

fans.

I. Space Temperature Control

1. Cooling: On a rise in space temperature above cooling set point (as determined by the

space temperature sensor), the unit shall stage on cooling. On a fall in space temperature,

the reverse shall occur.

2. Heating: On a fall in space temperature below heating set point (as determined by the

space temperature sensor), the unit shall stage on heating. On a rise in space

temperature, the reverse shall occur.

J. Direct Expansion Cooling: The unit manufacturer shall be responsible for the control of the

refrigeration system including the staging of compressors, head pressure control, refrigeration

alarms, etc to maintain temperature control.





SCO ID# 16-15906-01A


K. Heating Coil Control Valve: In cooling mode, the BAS shall close the heating coil control

valve to prevent simultaneous cooling and heating. Heating coil operation shall only be

available during heating mode.

1. In heating mode, the heating coil control valve shall modulate to control discharge

temperature (as sensed by the temperature sensor downstream of the heating coil). On a

fall in space temperature to 2F below the occupied heating set point, the BAS shall

modulate the heating coil control valve open. The valve shall be fully open to the coil at

2F below set point. On a rise to 1F above set point, the valve shall close.

L. Outdoor Air Damper:

1. Unoccupied: Damper shall remain closed. Damper end switch shall confirm the damper

closed. If damper fails to close, an alarm shall be sent to the head end identifying the unit


2. Occupied: The damper shall be fully open. Damper end switch shall confirm the damper

open. If damper fails to open, an alarm shall be sent to the head end identifying the unit


3. Economizer: The damper shall be fully open. Damper end switch shall confirm the

damper open. If damper fails to open, an alarm shall be sent to the head end identifying

the unit and stating that the outdoor damper failed to close.

M. Freeze Protection:

1. If the preheat coil discharge air temperature (temperature at the entering face of the direct

expansion cooling coil) falls to set point, the unit shall be disabled. This function shall be

reset automatically by the BAS when the temperature reaches 5F above set point.

N. System Safety: Whenever the supply fan is stopped or airflow ceases for any reason (as sensed

by the motor status sensing circuit), the supply and relief fans shall be deactivated, power to the

preheat coil control valve shall be removed and the valve shall position open. The outdoor air

damper shall be closed. The relief damper shall be closed. The chilled water valve shall be

closed. In all modes of operation, commanded position values for all control devices such as

dampers and valves shall be readable from the head-end.

O. Filter Change Alarm: The differential pressure across the filters shall be monitored, where if

the differential pressure exceeds 1” wg (adjustable), an alarm is issued to BAS.

2.8 WELDING EXHAUST SYSTEM CONTROLS (*AD-01)

A. Description: The welding exhaust system consists of a variable volume inline exhaust fan

equipped with a VFD, motorized outside air dampers located in the space, and hot water

coils at the make-up air louvers in the space.

B. Welding Exhaust Fan (F-2)

1. Enable/Disable: The welding exhaust system shall be enabled and disabled by a

start/stop push button located on the wall within the space. Individual welding





SCO ID# 16-15906-01A


exhaust hoods are equipped with manual dampers to open the hood exhaust as

needed.

2. Exhaust Fan Control:

a. A static pressure sensor shall be located at a point two-thirds of the distance

from the exhaust fan to the end of the longest trunk duct. Locations which

result in extreme variations in static pressure due to terminal box operation

shall be avoided. The static pressure sensor shall function as the control input

to the BAS (and thus to the supply fan VFD) such that a decrease in down-

duct static pressure will result in a proportional increase in supply fan speed

to maintain set point. On a rise in down-duct static pressure, the reverse shall

occur. Initial maximum static pressure set-point shall be -0.3 inches W.G. and

shall be adjustable.

b. The exhaust fan VFD modulates from minimum to maximum speed and the

motorized bypass damper modulates as required to maintain static pressure

set point of -0.3” w.c.

c. A second static pressure sensor located in the exhaust fan inlet duct shall

function as a safety input to the BAS. An increase in fan discharge static

pressure above set point (initially 4 inches w.g.) shall cause the BAS to stop

the exhaust fan. An alarm shall be sent to the BAS that the unit has been shut

down due to fan over-speed.

d. Drive Malfunction: Should the VFD malfunction as indicated by drive alarm

circuit, an alarm shall be sent to the head end. The fan shall continue to operate

unless deactivated by the VFD protection circuitry.

e. Fan Failure Alarm: Should the supply fan fail (sensed by its current sensing

relay), the unit shall be disabled, and an alarm shall be sent to the head end

identifying the unit and stating that the supply fan has failed.

C. Exhaust Hood Damper:

1. When the welding exhaust system is enabled, the BAS shall open the motorized

damper associated with the fan. Once the damper is confirmed open, the BAS shall

start the associated fan, F-2.

D. Make-Up Air Louvers:

1. When the welding system is exhaust fan is enabled, the motorized make-up air

dampers located in the space shall open.

E. Heating Coils

1. The heating coil control valves shall be modulated open as required to maintain

discharge air temp set point (60°F, adjustable).

2.9 PARALLEL FAN POWERED TERMINAL UNIT WITH HOT WATER HEAT

A. DESCRIPTION: Cooling & heating, ceiling mounted, parallel (intermittently) fan powered,

primary air control, variable air volume terminal unit. The unit contains a characterized damper,

a pitot type flow measuring device with transducer, a fan in parallel with primary air, and a step





SCO ID# 16-15906-01A


controlled electric heating coil. The velocity of air, as sensed by the flow sensor/transducer

combination using a calculation with a known diameter provides flow (CFM) information to the

BAS. The temperature of the space, as sensed by the space temperature sensor, allows the

controller to determine the required CFM for cooling, when to start the fan, when to start and

where to set the number of steps of electric heat.

B. Set points

1. Occupied Mode:

a. Cooling: 75° F

b. Heating: 70° F

2. Unoccupied Mode:

a. Cooling: 85° F

b. Heating: 55° F

C. Cooling:

1. On a rise in space temperature, as sensed by the space temperature sensor, above the

cooling set point, the BAS shall modulate the terminal unit air valve open in response to

the increase in space temperature until the maximum indicated CFM is reached.

2. On a fall in space temperature, as sensed by the space temperature sensor, the reverse shall

occur until the minimum indicated CFM is reached.

D. Heating:

1. On fall in space temperature, as sensed by the space temperature sensor, to the heating set

point the BAS shall start the terminal unit fan.

2. On a continued fall in space temperature, as sensed by the space temperature sensor, the

BAS shall modulate the hot water valve to maintain space temperature.

3. On a rise in space temperature, as sensed by the space temperature sensor, the reverse shall

occur.

E. Fan:

1. First stage of heat and should be cycled on/off during unoccupied mode to maintain heating

set point.

F. Morning Warm-Up/Cool-Down

1. If zone temperature is below the occupied heating set point, the BAS shall open the air

valve fully, start the terminal unit fan and fully open the hot water control valve.

2. If zone temperature is above the occupied cooling set point, the BAS shall open the air

valve fully.

G. Unoccupied Heating





SCO ID# 16-15906-01A


1. On fall in space temperature, as sensed by the space temperature sensor, to the unoccupied

heating set point the BAS shall start the terminal unit fan and fully open the hot water

control valve.

2. On a rise in space temperature, as sensed by the space temperature sensor, to five degrees

above the unoccupied space temperature set point, the reverse shall occur.

H. Monitoring points: The following information shall be sent to the BAS by the unitary controller

and subsequently displayed on the head end graphics.

1. Hot water valve position feedback.

2. Air valve position feedback.

3. Measured/calculated primary air flow.

4. Fan status

I. Dead band: A five-degree (5°F) dead band shall be maintained between heating and cooling set

points at all times. This shall not be an adjustable value on the head end graphics.

2.10 SERIES FAN-POWERED TERMINAL UNITS

A. Set points

1. Occupied Mode:

a. Cooling: 75° F

b. Heating: 70° F

2. Unoccupied Mode:

a. Cooling: 85° F

b. Heating: 55° F

B. Unoccupied Mode/Unoccupied Maintenance Mode: The BAS shall close the air valve, close the

hot water coil control valve and stop the fan.

1. Unoccupied Heating: If zone temperature falls below the unoccupied heating set point

(55°F adjustable), the BAS shall start the terminal unit fan at 100% speed and open the

hot water coil control valve.

2. Unoccupied Cooling: If zone temperature rises above the unoccupied cooling set point

(85°F adjustable), the BAS shall start the fan and the associated air handling unit and

open the air valve.

C. Morning Warm-Up/Cool-Down

1. If zone temperature is below the occupied heating set point, the BAS shall open the air

valve, start the terminal unit fan and open the hot water coil control valve.

2. If zone temperature is above the occupied cooling set point, the BAS shall start the

associated air handling unit and open the air valve.





SCO ID# 16-15906-01A


D. Occupied Mode: The BAS shall start the terminal unit fan and modulate the air valve to

maintain zone temperature at set point. On a fall in zone temperature below heating set point,

the BAS shall modulate the heating coil control valve to maintain zone temperature at set point.

If zone temperature rises above the occupied set point, the BAS shall modulate the air valve

open to maintain the zone temperature set point.

E. Discharge Air Temperature: The BAS shall indicate discharge air temperature at the head end.

2.11 SINGLE DUCT VAV TERMINAL UNITS

A. Set points

1. Occupied Mode:

a. Cooling: 75° F

b. Heating: 70° F

2. Unoccupied Mode:

a. Cooling: 85° F

b. Heating: 55° F

B. Unoccupied Mode: The BAS shall close the air valve and the hot water coil control valve.

1. Unoccupied Heating: If zone temperature falls below the unoccupied heating set point

(55°F adjustable), the BAS shall start the associated air handling unit and open the air

valve. The hot water coil control valve shall open.

2. Unoccupied Cooling: If zone temperature rises above the unoccupied cooling set point

(85°F adjustable), the BAS shall start the associated air handling unit and open the air

valve.

C. Morning Warm-Up/Cool-Down

1. The BAS shall open the air valve. If heating is required, the BAS shall open the hot

water coil control valve to reach occupied set point by the start of occupancy. Once the

occupied heating set point is reached and occupancy begins, the BAS shall operate the

terminal units as required for occupied mode.

D. Occupied/Unoccupied Maintenance Mode: The BAS shall modulate the air valve to maintain

zone temperature at set point. As zone temperature rises, the BAS shall modulate the air valve

open. As zone temperature falls, the BAS shall set modulate the air valve to its minimum

position. If the zone temperature reaches the space occupied heating set point, the BAS shall

modulate the air valve to its heating airflow position and modulate open the heating coil control

valve to maintain the occupied zone heating set point.

E. Discharge Air Temperature: The BAS shall indicate discharge air temperature at the head end.

2.12 FAN (Control Method BAS Schedule – F-4, F-6)





SCO ID# 16-15906-01A


A. General: These are general duty fans which operate on a time-of-day schedule. Refer to the

Fan Schedule for fan information.

B. Occupied/Unoccupied:

1. Unoccupied Operation: During unoccupied hours the fan shall be off and the damper

shall be closed.

2. Occupied Operation: During occupied hours, the fan shall be on and the damper shall be

open.

C. Start:

1. At the start of occupied operation, the BAS shall open the motorized damper associated

with the fan. Once the damper is confirmed open, the BAS shall start the fan. If the

damper is interlocked with fan operation, then the BAS shall start the fan.

D. Stop:

1. At the beginning of unoccupied operation, the BAS shall stop the fan and close the

associated damper (or just stop the fan if the damper is interlocked).

E. Fan failure alarm:

1. If the fan fails to start (as sensed by its current sensing relay) an alarm shall be sent to the

head end identifying the fan and stating that is has failed to start.

2.13 FAN (Control Method BAS Sensor – F-5)

A. General: Inline exhaust fan that is controlled by a wall-mounted temperature sensor. Refer to

the Fan Schedule for fan information.

B. Set points:

1. Space Temperature: 80°F (adj)

C. Space Temperature Control: When space temperature (as sensed by wall-mounted temperature

sensor) rises above set point, the BAS shall start the fan and open the associated motorized intake

damper. When space temperature (as sensed by wall-mounted temperature sensor) falls below set

point, the BAS shall disable the fan and close the associated motorized damper.

D. Fan failure alarm:

1. If the fan fails to start (as sensed by its current sensing relay), an alarm shall be sent to the

head end identifying the fan and stating that is has failed to start.

2.14 HOT WATER PUMP

A. Pump Start: On a call for heating from any piece of equipment, the BAS shall command the pump

to start.





SCO ID# 16-15906-01A


B. Pump Stop: When no equipment calls for heating for 10 minutes, the BAS shall send a stop

command.

C. Pump Alarms:

1. Should the pump fail to start, as sensed by its current sensing relay, an alarm shall be sent

to the head end identifying the pump and stating that it has failed to start.

D. Hot Water Temperature Monitoring: The BAS shall monitor the hot water supply and return

temperature.

END OF SECTION 230993





SCO ID# 16-15906-01A

Addendum 01 – 12/8/20 SPECIALTY EXHAUST SYSTEMS 233424 - 1

SECTION 233424 – SPECIALTY EXHAUST SYSTEMS (*AD-01)

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Provisions of the Contract and of the Contract Documents apply to this Section.

1.2 SUBMITTALS

A. Product Data: Include rated capacities, furnished specialties, and accessories for each type of

product indicated and include the following:

1. Certified fan performance curves with system operating conditions indicated.

2. Motor ratings, electrical characteristics, and accessories.

3. Control panel with wiring diagram.

B. Shop Drawings:

1. Fabricated welding exhaust hoods.

2. Detail equipment assemblies and indicate dimensions, weights, loads, required

clearances, and components. Indicate location and size of each field connection.

3. Wiring Diagrams: Power, signal, and control wiring. Differentiate between

manufacturer-installed and field-installed wiring.

C. Maintenance Data: For equipment specified in this section; to include in maintenance manuals.

1.3 QUALITY ASSURANCE

A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70,

Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for

intended use.

B. NEMA Compliance: Motors and electrical accessories shall comply with NEMA standards.

C. UL Standard: Fan shall comply with UL 705.

1.4 COORDINATION

A. Coordinate with size and location of structural-steel members.

B. Coordinate duct drop locations with equipment indicated.

PART 2 - PRODUCTS





SCO ID# 16-15906-01A


2.1 MANUFACTURERS

A. Available Manufacturers: Subject to compliance with requirements, manufacturers offering

products that may be incorporated into the Work include, but are not limited to, the following:

1. Welding Exhaust Systems

a. Industrial Air Products

b. Plymovent

c. United Air Specialists

2.2 WELDING EXHAUST SYSTEMS

A. General: Fabricated welding exhaust hoods, extractor arms, and welding exhaust fan and

associated controls.

B. Exhaust Fan: Aluminum spark-resistant wheel and wear plate, mounted vertically on steel

supports.

C. Extractor Arms: Telescopic swing exhaust arm with volume damper.

D. Welding Booths: Fabricated welding booth hood as indicated on Drawing M5.2. Hood shall be

16-gauge galvanized steel with manual shut-off dampers.

E. Controls: Custom control enclosure to house fan VFD, static pressure transducer, remote

start/stop contacts, and a dry contact for the emergency shut down. Coordinate with Section

230900.

F. Rigid Round Galvanized Steel Ductwork:

1. Ductwork Straight Sections shall be 26 gauge galvanized steel, spiral lockseam

construction in sizes 3” thru 12” diameter.

G. Rigid Round Galvanized Steel Duct Fittings:

1. Duct Elbows: Duct Elbows shall be smooth radius tube-type, fabricated of 26 gauge

galvanized steel, with a centerline radius equal to 1.5 times the diameter of the elbow.

Elbows shall be utilized for both 45 and 90- degree bends.

2. Duct Tees: Duct Tees shall be tapered-body reducing type, fabricated of 26 gauge

galvanized steel, with 45 degree lateral take-offs.

3. Wye Branches: Wye branches shall be fabricated of 26 gauge galvanized steel, with two

reducing branches at 45 degrees to the fitting outlet.

4. Miscellaneous Duct Adaptors and Transitions: Miscellaneous adaptors and transitions,

including hose adaptors, reducers, rectangular-to-round transitions, and bell-mouths, shall

be fabricated of 26 gauge galvanized steel.





SCO ID# 16-15906-01A


H. Galvanized Steel Duct Hardware:

1. Hangers: Hangers shall be pre-drilled, two-piece saddles, fabricated of 14-16 gauge

galvanized steel.

2.3 DUCTWORK HANGERS AND SUPPORTS

A. Hanger Rods: Galvanized, all-thread.

B. Strap and Rod Sizes: Comply with SMACNA's "HVAC Duct Construction Standards - Metal

and Flexible, Third Edition 2005," Table 5-1, "Rectangular Duct Hangers Minimum Size," and

Table 5-2, "Minimum Hanger Sizes for Round Duct."

C. Steel Cables for Galvanized-Steel Ducts: Galvanized steel complying with ASTM A 603.

D. Steel Cable End Connections: Cadmium-plated steel assemblies with brackets, swivel, and

bolts designed for duct hanger service; with an automatic-locking and clamping device.

E. Duct Attachments: Sheet metal screws, blind rivets, or self-tapping metal screws; compatible

with duct materials.

F. Trapeze and Riser Supports:

1. Supports for Galvanized-Steel Ducts: Galvanized-steel shapes and plates.

PART 3 - EXECUTION

3.1 INSTALLATION

A. Verify field conditions prior to installation of exhaust systems and equipment. Install systems

and equipment in accordance with manufacturers’ recommendations, using standard materials

and hardware compatible with the temperatures and operating pressures of the system.

B. Install units with clearances for service and maintenance, as recommended by the manufacturer.

C. Label units according to requirements specified in Division 23 Section "Mechanical

Identification."

3.2 DUCT INSTALLATION

A. Drawing plans, schematics, and diagrams indicate general location and arrangement of duct

system. Duct locations, configurations, and arrangements were used to size ducts and calculate

friction loss for air-handling equipment sizing and for other design considerations. Install duct

systems as indicated unless deviations to layout are approved by Architect in writing.

B. Comply with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible, Third

Edition 2005" unless otherwise indicated.

C. Install ducts with fewest possible joints.





SCO ID# 16-15906-01A


D. Install factory-fabricated fittings for changes in direction, size, and shape and for branch

connections.

E. Unless otherwise indicated, install ducts vertically or horizontally, and parallel or perpendicular

to building lines.

F. Install ducts close to walls, overhead construction, columns, and other structural and permanent

enclosure elements of building. Maintain clearances for equipment maintenance.

G. Install ducts with a clearance of 1 inch, plus allowance for installation of insulation at specified

thickness.

H. Do not route ducts through transformer vaults, electrical equipment rooms, elevator equipment

rooms or electrical enclosures.

I. Where ducts pass through non-fire-rated interior partitions and exterior walls and are exposed to

view, cover the opening between the partition and duct or duct insulation with sheet metal

flanges of same metal thickness as the duct. Overlap openings on four sides by at least 1-1/2

inches.

J. Protect duct interiors from moisture, construction debris, dust, and other foreign

materials. Comply with SMACNA's "Duct Cleanliness for New Construction Guidelines."

3.3 INSTALLATION OF EXPOSED DUCTWORK

A. Protect ducts exposed in finished spaces from being dented, scratched, or damaged.

B. Maintain consistency, symmetry, and uniformity in the arrangement and fabrication of duct,

fittings, hangers, supports, accessories, and air outlets.

C. Repair or replace damaged sections and finished work that does not comply with these

requirements.

3.4 DUCTWORK HANGER AND SUPPORT INSTALLATION

A. Comply with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible, Third

Edition 2005," Chapter 5, "Hangers and Supports."

B. Building Attachments: Unless indicated otherwise, provide concrete inserts, powder-actuated

fasteners, or structural-steel fasteners appropriate for construction materials to which hangers

are being attached.

1. Where practical, install concrete inserts before placing concrete.

2. Do not use powder-actuated concrete fasteners for lightweight-aggregate concrete or for

slabs less than 4 inches thick.

C. Hanger Spacing: Comply with SMACNA's "HVAC Duct Construction Standards - Metal and

Flexible, Third Edition 2005," Table 5-1, "Rectangular Duct Hangers Minimum Size," and

Table 5-2, "Minimum Hanger Sizes for Round Duct," for maximum hanger spacing; install

hangers and supports within 24 inches of each elbow and within 48 inches of each branch

intersection.

D. Hangers Exposed to View: Threaded rod and channel supports.





SCO ID# 16-15906-01A


E. Support vertical ducts with channel secured to the sides of the duct with welds, bolts, sheet

metal screws, or blind rivets; support at each floor or at a maximum interval of 18 feet.

F. Install upper attachments to structures. Select and size upper attachments with pull-out, tension,

and shear capacities appropriate for supported loads and building materials where used.

3.5 FIELD QUALITY CONTROL

A. Equipment Startup Checks:

1. Verify that shipping, blocking, and bracing are removed.

2. Verify that unit is secure on mountings and supporting devices.

3. Verify that connections to ducts and electrical components are complete.

4. Verify that proper thermal-overload protection is installed in motors, starters, and

disconnect switches.

5. Verify that cleaning and adjusting of all components is complete.

6. Verify lubrication for bearings and other moving parts.

B. Starting Procedures:

1. Measure and record motor voltage and amperage.

2. Test and adjust controls and safeties. Replace damaged or malfunctioning controls and

components.

C. Operational Test: After electrical circuitry has been energized, start units to confirm proper

motor rotation and system operation. Remove malfunctioning units, replace with new units, and

retest. Verify scheduled airflow at source capture points, and at fume exhaust fans and

collectors. Refer to Section 230593-Testing and Balancing for HVAC, for applicable

procedures and reports.

3.6 DEMONSTRATION

A. Engage a factory-authorized service representative to train Owner's maintenance personnel to

adjust, operate, and maintain exhaust systems.

1. Train Owner's maintenance personnel on procedures and schedules for starting and

stopping, troubleshooting, servicing, and maintaining equipment and schedules.

2. Review data in maintenance manuals.

3. Schedule training with Owner, through Architect, with at least seven days' advance

notice.





SCO ID# 16-15906-01A


END OF SECTION 233424

UPFEB

FEB

FEB

FEB

FEB

FEB

FEB

FEB

A. PATCH AND REPAIR ANY DAMAGE OR HOLES IN EXISTING PARTITIONS FROM

DEMOLITION WORK. AT MASORY PARTITIONS WHERE MECHANICAL DUCT WORK IS

REMOVED AND NOT REPLACED, SEE DETAIL 5/A2.1 FOR PENETRATION INFILL.

REPAIR WORK SHOULD MATCH THE QUALITY OF EXISTING PARTITIONS AND

PREPARED TO RECIEVE NEW FINISHES.

B. EXTERIOR MASONRY BLOCK WALLS SHALL BE STAINED. COLOR SHALL BE

SELECTED BY ARCHITECT. - ADDITIVE BID ITEM 2

FLOOR PLAN GENERAL NOTES

EXISTING

GREEN APPLE

LAB

140

TOILET

118

EXISTING MEN

115

STORAGE

150

INSTRUCTIONAL

LAB

160

OFFICE

162CONFERENCE

174

LOUNGE

110

WATER JET

133

MATERIAL

PREP/

FABRICATION

130

WELDING

171

WELDING

SHOP

170

EXISTING

WOMEN

116

EXISTING ELEV

EQUIP

117

BREAK

163

9' -

0"

+/- 8' - 0"

ACETYLENE

STORAGE

132A

OXYGEN

STORAGE

132B

A2.2

1

A2.2

2

A4.11

STORAGE

135

JAN

114

RECEIVING

131

CIRCULATION

111

CIRCULATION

112

ELECTRICAL

134

H134H133A

H135A

H118

H110

H162

H171

H160B

H137H150A

P2

P2

P2

M2

M4

2

2

3

M3

3

4

5

4

5

44 54 54 54 5

4

5

4

5

4

5

4 5

4 5

+/-

122' -

3 5

/8"

+/- 122' - 3 5/8"

1

A5.0

1

A5.0

2

A5.0

2

A5.0

A7.1

1

25

9' - 4"

16' -

7"

H160A

H160D

H135B

+/-

10' -

0"

6

H140E

7

EXISTING

STORAGE

141

EXISTING

STORAGE

136

EXISTING ELEC

128

EXISTING

BROOM

CLOSET

129

ALIGN

VESTIBULE

161

+/- 5' - 0"

1' - 8"

5' -

0"

9' - 0"

CIRCULATION

132

ALIGN

1' - 9 1/16"

8

9

A4.1

A4.1 3

A4.1

2

EXTENTS OF WORK AREA

A2.1

1

P2P2

ALIG

N

ALIGN

P2

LINE OF MASONRY

WALL ABOVE

M3

M3

P2

10

P1

H112

A2.1

2

2

17

P2

WITH SINK

4

21

2424

24

24

24

24

9

1

A5.1A3.0.12

A2.1

3

ABOVE

CIRCULATION

111

H114

1

2

AS

3

AS

4

AS

H111B

H111A

6' -

8"

10' - 2"

A4.1

2a

WA1

3 3/8"

11

12

13

14

MECH. EQUIP.

MEZZANINE

280

10

MECHANICAL AND ELECTRICAL

EQUIPMENT NOT SHOWN FOR

CLARITY. REFER TO MECHIANICAL AND

ELETRICAL DRAWINGS FOR LAYOUTS.

15

AD-01

FIRST FLOOR

Roof - Hocutt

28' - 0"

P2

P2

11

11

18

19

19

10' -

0"

20

11

11

22

23

FIE

LD

VE

RIF

Y

EX

IST

ING

PE

NE

TR

AT

ION

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A

RALEIGH,

ROL IN

NC

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CH

D

MOSELEYARCHITECTS.COM

50149

PROJECT NO:

DATE:

PH

ON

E (

919)

840-0

091

911 N

. W

ES

T S

TR

EE

T, S

UIT

E 2

05 R

ALE

IGH

, N

OR

TH

CA

RO

LIN

A 27603

A

B

C

D

E

1 2 4 53 6 7 8 9 10

F

G

H

I

J

11/06/20

12

/8/2

02

0 1

1:2

6:0

1 A

M FLOOR PLAN AND

DETAILS

WA

YN

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OM

MU

NIT

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OL

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NC

ED

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NO

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7534

A2.1

SC

O ID

# 1

6-1

59

06

-01

A

593101

NOVEMBER 6, 2020

1/8" = 1'-0"

FIRST FLOOR PLAN

APPLIES TO DRAWINGS A2.1

1 NEW CONCRETE FLOOR SLAB. FINISH LEVEL TO MATCH ADJACENT FINISH

FLOOR - ADDITIVE BID ITEM 3

2 UV CURTAIN STRIPS AT WELDING BOOTHS, TYP

3 CHAIN LINK FENCING AND GATE; 8' - 0" IN HEIGHT

4 REPAIR OR REPLACE LINTELS AS NECESSARY. REMOVE BLOCK AS

REQUIRED TO INSTALL FLASHING. REINSTALL BLOCK WITH WEEP JOINTS AT

REQUIRED SPACING - ADDITIVE BID ITEM 2

5 PAINT EXISTING DOORS AND FRAMES - ADDITIVE BID ITEM 2

6 INSTALL NEW DOOR LEAFS AND HARDWARE AT THIS LOCATION

7 FRAME AROUND EXISTING CONDUIT AND PIPING ALONG MASONRY WALL

8 12' MARKER BOARD - NIC

9 INSTALL COUNTERTOP

10 EXISTING ACCESS LADDER

11 EXISTING MASONRY WALL

12 BACKER ROD AND SEALANT

13 SEALANT

14 GALV CFSF-S; ATTACH USING 1/4" DIA CONCRETE ANCHOR SCREW

15 EXISTING PIPE RAIL

16 NOT USED

17 SEE DETAIL 4/A2.1 FOR BRACING DETAIL

18 CFSF-S CLIP WITH 1/4" DIA CONCRETE SCREW ANCHORS TO ATTACH TO

EXISTING MASONRY WALL

19 3 5/8 CFSF-S BRACE AT 6'-0" ON CENTER

20 3 5/8" CFSF-S AS REQUIRED FOR SUPPORTING SUSPENDED CEILING

21 WATER FOUNTAIN, OFCI

22 20 GAUGE SHEET METAL, ATTACH TO EXISTING WALL. PAINT TO MATCH

WALL WHERE BELOW CEILING

23 ACOUSTIC INSULATION

24 SEE DETAIL 5/A2.1 FOR DUCT PENETRATION PATCHING

25 WIRE MESH PARTITION AND DOORS

0' 8'4' 16'2'

1/8" = 1'-0"

1/4" = 1'-0"A2.1 A2.1

FIRST FLOOR PLAN - ADDITIVE BID ITEM 31

0' 4'2' 8'1'

1/4" = 1'-0"

3" = 1'-0"A2.1 A2.1

DETAIL2

6" 30"18"1'0" 2'

3/4" = 1'-0"

1/4" = 1'-0"A2.1 A2.1

ENLARGED PLAN3

3/4" = 1'-0"A2.1

DETAIL4

A2.1

NO SCALEA2.1

DUCT PENETRATION PATCH DETAIL5

1"0" 2" 4" 8"

3" = 1'-0"

REVISIONS

DATE DESCRIPTION

12/8/20 AD-01

AD-01

CHITECTSCP

RA

MOSE

ELY

N

CO

RPORAT IO

N

O

RTH OCAR

L I

NA

REGIST

ERE

D ENGINE

ERING

EIGH, NCRAL

SEAL

SONP. FORS

Y

037569

TH

JA

CAROLINA

HTRO

N

PR

OFESSIONA

L

ENG INEE

R11/6/20


C-3469

PROJECT NO:

DATE:

PH

ON

E (

919

) 8

40

-009

1

911

N. W

ES

T S

TR

EE

T, S

UIT

E 2

05

R

ALE

IGH

, N

OR

TH

CA

RO

LIN

A 27

60

3

A

B

C

D

E

1 2 4 53 6 7 8 9 10

F

G

H

I

J

12

/8/2

02

0 1

1:0

2:2

4 A

M SCHEDULES

WA

YN

E C

OM

MU

NIT

Y C

OL

LE

GE

AD

VA

NC

ED

MA

NU

FA

CT

UR

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CE

NT

ER

RE

NO

VA

TIO

N

3000

Way

ne

Mem

ori

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r, G

old

sbo

ro, N

C 2

7534

M0.2

SC

O I

D #

16

-15

90

6-0

1A

593101

NOVEMBER 6, 2020

TERMINAL UNIT SCHEDULE

TAG MANUFACTURERMODEL

NUMBER

AIR VALVE COIL

WEIGHT(LBS)

INLETDIAMETER

(IN)MAXIMUM

AIRFLOW (CFM)

MINIMUMAIRFLOW

(CFM)

APD AT MAXAIR FLOW

(IN-WC)

DESIGNAIRFLOW

(CFM)CAPACITY

(BTUH) EAT (°F) LAT (°F)FLOW RATE

(GPM)

FLUIDPRESSURE

DROP(FT WC)

ROWS(NO)

TU1-03 TRANE VCWF 10 870 645 0.22 645 23,500 55 88.6 1.5 6.10 1 29

FAN POWERED TERMINAL UNIT SCHEDULE


NUMBER

AIR VALVE FAN COIL ELECTRICAL DATA

WEIGHT(LBS)

INLETDIAMETER

(IN)

MAXIMUM AIRFLOW(CFM)

MINIMUM AIRFLOW(CFM)

APD ATMAXIMUM AIR

FLOW(IN WC) FAN SIZE

MOTOR(HP)

AIRFLOW(CFM)

ESP(IN WC)

DESIGNAIRFLOW

(CFM)CAPACITY

(BTUH)EAT(°F)

LAT(°F)

FLOW RATE(GPM)

WATERPRESSURE

DROP(FT WC)

ROWS(NO)

FLA(A)

MCA(A)

MOCP(A)

SERVICE

V PH HZ

TU1-01 TRANE VPWF 12 1,650 1,000 0.18 03SQ 1/3 650 0.25 1,650 49,290 61.0 88.8 4.0 3.57 1 2.4 3.0 15 277 1 60 107

TU1-02 TRANE VPWF 10 1,390 580 0.17 03SQ 1/3 810 0.25 1,390 42,190 63.7 91.7 3.0 2.06 1 2.4 3.0 15 277 1 60 106

TU1-04 TRANE VPWF 10 970 285 0.09 03SQ 1/3 685 0.25 970 34,420 64.2 96.9 2.5 1.45 1 2.4 3.0 15 277 1 60 106

TU1-05 TRANE VPWF 10 1,060 320 0.10 03SQ 1/3 740 0.25 1,060 37,210 64.0 96.7 3.0 2.06 1 2.4 3.0 15 277 1 60 106

TU1-06 TRANE VPWF 10 1,350 410 0.16 03SQ 1/3 940 0.25 1,350 43,780 65.4 95.3 4.0 3.57 1 2.4 3.0 15 277 1 60 106

AIR HANDLING UNIT SCHEDULE


NUMBER

SUPPLY FAN

OUTSIDE AIRDESIGN

AIRFLOW(CFM)

DX COOLING COIL HYDRONIC HEATING COIL ELECTRICAL DATA

WEIGHT(LBS) NOTES

DESIGNAIRFLOW

(CFM)ESP

(IN WC)

FAN WHEEL

MOTOR SIZE(HP)

TOTALCAPACITY

(BTUH)

SENSIBLECAPACITY

(BTUH)

EAT LAT

SENSIBLECAPACITY

(BTUH)EAT(°F)

LAT(°F)

EWT(°F)

LWT(°F)

WATERFLOWRATE(GPM)

WATERPRESSURE

DROP(FT WC)

SINGLE-POINT DATA SERVICE

DIAMETER(IN) TYPE

FANSPEED(RPM) (°F DB) (°F WB) (°F DB) (°F WB)

UNITFLA(A)

UNITMCA(A)

UNITMOCP

(A) (V) (PH) (HZ)

AHU-1 TRANE CSAA-035 18,000 1.50 25 AF 1407 20 7,250 907,340 572,650 83.0 69.4 54.0 53.4 722,280 18.0 55.0 180 160 72 10.2 24.5 30.6 50.0 480 3 60 3,658 1

AHU-2 TRANE CSAA-012 5,400 1.50 15 FC 1144 7-1/2 5,400 458,970 242,980 95.0 78.0 54.0 53.8 304,530 18.0 70.0 180 160 30 2.9 9.4 11.8 20.0 480 3 60 1,334 2

CONDENSING UNIT SCHEDULE

TAG MANUFACTURER MODEL LOCATIONCAPACITY

(TONS)

NUMBEROF

COMPRESSORS

NUMBEROF

CIRCUITS

AMBIENT AIRTEMPERATURE

(°F)MCA(A)

MOCP(A)

ELECTRICAL DATAWEIGHT

(LBS) NOTES(V) (PH) (HZ)

CU-1 TRANE RAUJ080 ROOF 80 6 2 95 174 200 480 3 60 5,783 1

CU-2 TRANE RAUJ040 ROOF 40 4 2 95 87 100 480 3 60 3,120 -

HOT WATER COIL SCHEDULE

TAG MANUFACTURER MODEL NUMBER LOCATION SIZE

TOTALCAPACITY

(BTUH)

AIR HYDRONIC HEATING COIL

WEIGHT(LBS)

AIR FLOW(CFM)

EAT(°F)

LAT(°F)

FLOW RATE(GPM)

EWT(°F)

WATERPRESSURE

DROP(FT WC)

HC-1 TRANE 5W 171 WELDING 54x21 189,790 3,500 10 60 19.0 180 2.61 58








dofiibI=obdfpqboI=C=afccrpbo=p`ebaribTAG MANUFACTURER MODEL NUMBER MOUNTING STYLE NECK SIZE FACE SIZE MAX NC LEVEL NOTES

S1 PRICE ASCD LAY-IN 6" 24x24 30 -



S4 PRICE SDGE DUCT-MOUNTED 10x6 12x8 30 1

R1 PRICE 635-TB-L LAY-IN 22x22 24x24 30 -

R2 PRICE 635-F-L SURFACE 40x14 42x16 30 -

E1 PRICE 80-F SURFACE 6x6 8x8 30 -

E2 PRICE 80-F SURFACE 10x10 12x12 30 -

E4 PRICE 80 DUCT-MOUNTED 10x10 12x12 30 -

T1 PRICE 635-TB-L LAY-IN 22x22 24x24 30 -

FAN SCHEDULE

TAG MANUFACTURER MODEL NUMBER SERVING TYPEAIRFLOW

(CFM)ESP

(IN WC)FAN WHEEL

(RPM) DRIVE TYPE SONESCONTROLMETHOD

MOTOR(HP)

ELECTRICAL DATA WEIGHT(LBS) NOTES(V) (PH) (HZ)

F-1 GREENHECK BSQ-180 WELDING AREA INLINE CENTRIFUGAL 5,400 1.00 1527 BELT 23 BAS 3 480 3 60 183 1,2

F-2 INDUSTRIAL AIR PRODUCTS 402-ICB WELDING BOOTHS INLINE CENTRIFUGAL 28,000 3.00 1146 BELT 99 WALL SWITCH 50 480 3 60 2,009 -

F-3 GREENHECK BSQ-240-VG AHU-1 RETURN FAN INLINE CENTRIFUGAL 10,750 0.75 1198 BELT 36 BAS 5 480 3 60 287 1,2

F-4 GREENHECK SQ-95-VG 118, 136, 141 INLINE CENTRIFUGAL 525 0.40 1501 DIRECT 7.7 BAS 1/6 120 1 60 44 1

F-5 GREENHECK SQ-90-VG 150 STORAGE INLINE CENTRIFUGAL 450 0.40 1578 DIRECT 7.6 BAS SENSOR 1/10 120 1 60 44 1

F-6 GREENHECK G-123-VG 130 MATERIAL PREP/FABRICATION ROOF MTD. CENTRIFUGAL 1,650 0.30 1488 DIRECT 13.5 BAS 1/2 120 1 60 43 1,3

PUMP SCHEDULE

TAG MANUFACTURER MODEL NUMBER SERVING LOCATION TYPE

OPERATING DATA

SUCTION SIZE(IN)

DISCHARGESIZE(IN)

IMPELLER SIZE(IN) MOTOR RPM

MOTOR(HP)

ELECTRICAL DATA

FLOW(GPM)

HEAD(FT WC)

EFFICIENCY(%) V PH HZ

HWP-1 BELL & GOSSETT e1510-3BD HOT WATER LOOP MEZZANINE BASE MOUNTED 350.0 50 78.4 4 3 7.750 1770 7.5 480 3 60

NOTES:

1. PROVIDE VARIABLE VOLUME SUPPLY FAN WITH FACTORY INSTALLED VFD AND ECONOMIZER OPERATION.

2. PROVIDE CONSTANT VOLUME SUPPLY FAN WITH FACTORY INSTALLED VFD.

NOTES:

1. PROVIDE RAWALS APR CONTROL VALVE TO MODULATE COOLING CAPACITY DOWN TO 15% ON LEAD CIRCUIT FOR EVAPORATOR COIL LEAVING AIR TEMPERATURE CONTROL.

2. MINIMUM EFFICIENCY OF CONDENSING UNIT: 9.5 EER.

3. MINIMUM EFFICIENCY OF CONDENSING UNIT: 9.8 EER.

NOTES:

1. PROVIDE MOTORIZED BACKDRAFT DAMPERS AND INTERLOCK WITH FAN OPERATION.

2. PROVIDE VFD.

3. PROVIDE CURB ADAPTER.

NOTES:

1. PROVIDE PRIME COAT FINISH FOR FIELD PAINTING. COORDINATE CUSTOM COLOR WITH ARCHITECT.

REVISIONS

DATE DESCRIPTION

12/8/20 *AD-01

*AD-01

S

S

S

SS

S

S

S

S

S

S

S

S

SS S

S

1

2

3 4

4

5

5

5

6

6

EX

36x24

EX

24x12

EX

22

x8

EX 40x16EX 40x20

EX

36x42

EX 36x24EX 36x18

EX 66x20

EX

22

x1

2

EX

22

x1

2

EX

16

x1

2

6

6

6

7 8

9

10

10

10

10

10

10

10

10

10

10

10

10

10 10 10

10

10

11

12

*AD-01

13

CHITECTSCP

RA

MOSE

ELY

N

CO

RPORAT IO

N

O

RTH OCAR

L I

NA

REGIST

ERE

D ENGINE

ERING

EIGH, NCRAL

SEAL

SONP. FORS

Y

037569

TH

JA

CAROLINA

HTRO

N

PR

OFESSIONA

L

ENG INEE

R11/6/20


C-3469

PROJECT NO:

DATE:

PH

ON

E (

919

) 8

40

-009

1

911

N. W

ES

T S

TR

EE

T, S

UIT

E 2

05

R

ALE

IGH

, N

OR

TH

CA

RO

LIN

A 27

60

3

A

B

C

D

E

1 2 4 53 6 7 8 9 10

F

G

H

I

J

12

/8/2

02

0 1

1:0

2:2

7 A

M SECOND FLOOR

DEMOLITION PLAN

WA

YN

E C

OM

MU

NIT

Y C

OL

LE

GE

AD

VA

NC

ED

MA

NU

FA

CT

UR

ING

CE

NT

ER

RE

NO

VA

TIO

N

3000

Way

ne

Mem

ori

al D

r, G

old

sbo

ro, N

C 2

7534

M1.2

SC

O I

D #

16

-15

90

6-0

1A

593101

NOVEMBER 6, 2020

1/8" = 1'-0"

SECOND FLOOR DEMOLITION PLAN

KEYNOTES

APPLICABLE TO THIS DRAWING

1 EX 26x70 DOWN. SEE DRAWING M1.1 FOR CONTINUATION. EX 46x36

UP TO EXISTING GRAVITY VENTILATOR ON ROOF. REMOVE EXISTING

MOTORIZED DAMPER AT GRAVITY VENTILATOR.

2 EX 30ø DOWN. SEE DRAWING M1.1 FOR CONTINUATION.

3 EX 40x17 DOWN. SEE DRAWING M1.1 FOR CONTINUATION.

4 EX HOT WATER UNIT HEATER TO REMAIN.

5 REMOVE EXISTING AIR HANDLING UNIT AND ALL ASSOCIATED

CONTROLS.

6 REMOVE EXISTING FAN AND ALL ASSOCIATED CONTROLS.

7 EX 3" HWS & HWR DOWN. SEE DRAWING M1.1 FOR CONTINUTATION.

8 EX 4" HWR DOWN. SEE DRAWING M1.1 FOR CONTINUTATION.

9 EX 4" HWR & EX 2" HWS DOWN. SEE DRAWING M1.1 FOR

CONTINUTATION.

10 PROVIDE PRE-CONSTRUCTION TESTING FOR TERMINAL UNIT PRIOR

TO ANY DEMOLITION WORK. REFER TO SPECIFICATION SECTION

014520 FOR REQUIREMENTS.

11 PROVIDE PRE-CONSTRUCTION TESTING FOR EXHAUST FAN PRIOR TO

ANY DEMOLITION WORK. REFER TO SPECIFICATION SECTION 014520

FOR REQUIREMENTS.

12 EX 26ø DOWN. SEE DRAWING M1.1 FOR CONTINUATION.

13 REMOVE EXISTING MOTORIZED BYPASS DAMPER.

REVISIONS

DATE DESCRIPTION

12/8/20 *AD-01

*AD-01

*AD-01

M

M

M

SDM

MECH. EQUIP.

MEZZANINE

280

AHU-2

BELOW

HWP-1

2

M3.1

F-2

F-3

3

M3.1

F-4

AHU-1

EX 1 1/4" HWS

EX 3/4" HWS

3"

HW

S

4" HWS

4" HWS

32x32

66x20

48x24

34x34

96x96 PLENUM

76x60

36x36

10x12

10x10

1

1

2

3

4

5

6

200x111 PLENUM, FULL SIZE

OF EXISTING LOUVER.

OUTSIDE AIR INTAKE

7

AHU-1

VFD

AHU-2

VFD

F-2

VFD

F-3

VFD

HWP-1

VFD

F-1

VFD

12x12

2" HWS

2" HWR

8888

8888

9

9

10

11

*AD-01

AHU-1

AHU-262x34

96x96 PLENUM

76x60

34x34

4"

HW

S

4"

HW

S

EX 40x34

32x32

36x36

200x111

CONNECT TO

LOUVER

EX EH-5

EX EH-1

2" HWR

3" HWR

HWP-1

4"

HW

S

4"

HW

S

4"

HW

S

1 1

/4"

HW

S

3" HWR

AHU-2

AHU-1

34x34

48x24

34x34

10x10

EX EH-1

EX EH-3

EX EH-7

2" HWS

2" HWR

CHITECTSCP

RA

MOSE

ELY

N

CO

RPORAT IO

N

O

RTH OCAR

L I

NA

REGIST

ERE

D ENGINE

ERING

EIGH, NCRAL

SEAL

SONP. FORS

Y

037569

TH

JA

CAROLINA

HTRO

N

PR

OFESSIONA

L

ENG INEE

R11/6/20


C-3469

PROJECT NO:

DATE:

PH

ON

E (

919

) 8

40

-009

1

911

N. W

ES

T S

TR

EE

T, S

UIT

E 2

05

R

ALE

IGH

, N

OR

TH

CA

RO

LIN

A 27

60

3

A

B

C

D

E

1 2 4 53 6 7 8 9 10

F

G

H

I

J

12

/8/2

02

0 1

1:0

2:3

0 A

M ENLARGED PLAN AND

SECTIONS

WA

YN

E C

OM

MU

NIT

Y C

OL

LE

GE

AD

VA

NC

ED

MA

NU

FA

CT

UR

ING

CE

NT

ER

RE

NO

VA

TIO

N

3000

Way

ne

Mem

ori

al D

r, G

old

sbo

ro, N

C 2

7534

M3.1

SC

O I

D #

16

-15

90

6-0

1A

593101

NOVEMBER 6, 2020

1/2" = 1'-0"M2.2.1 M3.1

ENLARGED PLAN - MECHANICAL MEZZANINE1

KEYNOTES

APPLICABLE TO THIS DRAWING

1 4" HWS DOWN. SEE DRAWING M2.1.2 FOR CONTINUTATION.

2 3" HWR DOWN. SEE DRAWING M2.1.2 FOR CONTINUTATION.

3 EX 36x46 UP TO EX RELIEF HOOD ON ROOF. PROVIDE MOTORIZED

DAMPER BELOW ROOF. SEE CONTROLS SCHEMATICD ON DRAWING

M7.1.

4 24x48 UP TO EX RELIEF HOOD ON ROOF.



7 EX 36x36 UP TO F-6 ON ROOF. PROVIDE NEW MOTORIZED DAMPER AT

ROOF PENETRATION.

8 REFRIGERANT LIQUID AND SUCTION TO CONDENSING UNIT. SIZE PER

MANUFACTURER'S RECOMMENDATIONS.

9 ROUTE CONDENSATE FOR AHU-1 AND AHU-2 TO EXISTING FLOOR

DRAIN. SIZE FOR FULL CONNECTION OF DRAIN.

10 EX 26ø DOWN. SEE DRAWING M2.1.1 FOR CONTINUATION.

11 MOTORIZED BYPASS DAMPER. SEE CONTROLS SCHEMATIC ON

DRAWING M7.1.

1/2" = 1'-0"M3.1 M3.1

SECTION2

1/2" = 1'-0"M3.1 M3.1

SECTION3

REVISIONS

DATE DESCRIPTION

12/8/20 *AD-01

*AD-01

*AD-01

mi^k=sfbt

bibs^qflk=sfbt

5' -

10 3

/4"

8' -

4"

DX

CO

OLIN

G C

OIL

DX

CO

OLIN

G C

OIL

SU

PP

LY

FA

N

HO

T W

AT

ER

HE

AT

ING

CO

IL

FIL

TE

RS

SUPPLY AIR

9' - 7 7/8"

SU

PP

LY

FA

N

HO

T W

AT

ER

HE

AT

ING

CO

IL

FILTERS

RETURN AIR

SUPPLY AIR RETURN AIR

mi^k=sfbt

bibs^qflk=sfbt

3' -

9"

5' -

6 1

/2"

DX

CO

OLIN

G C

OIL

DX COOLING COIL

SU

PP

LY

FA

N

HOT WATER

HEATING COIL

FILTERS

SUPPLY AIR

SU

PP

LY

FA

N

HO

T W

AT

ER

HE

AT

ING

CO

IL

FILTERS

RETURN AIR

SUPPLY AIR RETURN AIR

7' - 7"

MANUAL SHUT-OFF

DAMPERS

16 GA. GALV.

3'-

0"

(2) 48" x 2-1/8" SLOTS

1 2 "

4"

DAMPER LOCK. POSITION

OF DAMPER TO BE SET BY

TAB CONTRACTOR.

mi^k=sfbt

bibs^qflk=sfbt

SHUT-OFF DAMPER

16" DUCT TO DUCT MAIN

12

"

18"

18

"

3'-4"

1,400 CFM

1,400 CFM

SPRING RETURN

SHUT-OFF DAMPER DETAIL

GASKET

AIRTIGHT

BOTH FACES AND CENTER DIVIDING PANEL SHALL

BE 1/8" THICK - SHOP PRIME COAT BOTH FACES

SPOT WELD 4" O.C.

AND SEAL AIRTIGHT

*AD-01

EXISTING LOUVER

EXISTING LOUVER

OUTSIDE AIR

48" x 24" MOTORIZED CONTROL DAMPER (TYP OF 12)

SHEET METAL ENCLOSURE.

COORDINATE PAINT COLOR

WITH ARCHITECT.

HEATING COIL (TYP OF 8)

WALL

SUPPORT

BRACKET

HEATING COIL

SHEET METAL

BLANK-OFF

MOTORIZED

CONTROL

DAMPERS

pb`qflk=sfbt

mi^k=sfbt

AHU-1

SECOND FLOOR

FIRST FLOOR

13,110 CFM

7,290 CFM

8,100 CFM

2,650 CFM

AHU-2

5,400 CFM

WELDING AREA

F-1

ROOF

5,400 CFM

WELDING AREA

CHITECTSCP

RA

MOSE

ELY

N

CO

RPORAT IO

N

O

RTH OCAR

L I

NA

REGIST

ERE

D ENGINE

ERING

EIGH, NCRAL

SEAL

SONP. FORS

Y

037569

TH

JA

CAROLINA

HTRO

N

PR

OFESSIONA

L

ENG INEE

R11/6/20


C-3469

PROJECT NO:

DATE:

PH

ON

E (

919

) 8

40

-009

1

911

N. W

ES

T S

TR

EE

T, S

UIT

E 2

05

R

ALE

IGH

, N

OR

TH

CA

RO

LIN

A 27

60

3

A

B

C

D

E

1 2 4 53 6 7 8 9 10

F

G

H

I

J

12

/8/2

02

0 1

1:0

2:3

1 A

M DETAILS

WA

YN

E C

OM

MU

NIT

Y C

OL

LE

GE

AD

VA

NC

ED

MA

NU

FA

CT

UR

ING

CE

NT

ER

RE

NO

VA

TIO

N

3000

Way

ne

Mem

ori

al D

r, G

old

sbo

ro, N

C 2

7534

M5.2

SC

O I

D #

16

-15

90

6-0

1A

593101

NOVEMBER 6, 2020

NO SCALE

AHU-1 LAYOUTAHU-2 LAYOUT

WELDING HOOD EXHAUST DETAILSHEATING COIL WELDING MAKE-UP AIR SYSTEM

1/2" = 1'-0"

AIR HANDLING UNIT DUCT RISER DIAGRAM

REVISIONS

DATE DESCRIPTION

12/8/20 *AD-01

M

M

MM

M

CSRVSD

DX

CO

OLIN

G C

OIL

SUPPLY FAN

BAS

INTERFACE

DRAIN PAN WATER LEVEL

DETECTION DEVICE

SPD

AO

CONDESER SECTION

CSRVSD

RETURN FAN

SPD

AO

RETURN AIR

R

SD

ALM

BI

TS

AI

HE

AT

ING

CO

IL

POS

AO

POS

AI

FO

FIN

AL F

ILT

ER

ATS

AI

ALM

BI

SUPPLY AIR

SP

AI

TS

AI

SUPPLY AIR

SP

AI

DOWN-DUCT STATIC

PRESSURE SENSOR

ATS

AI

OU

TD

OO

R A

IR

POS

AI

DM

AOM

AF

AI

RH

AISPACE HUMIDITY SENSOR

SS

BO

ALM

BI

ALM

BI

RE

LIE

F/E

XH

AU

ST

AIR

M

SS

BO

ALM

BI

ALM

BI

AF

AI

RH

AI

M

DM

AO

DM

AO

POS

AI

POS

AI

RETURN AIR DAMPER

CSRVSD

DX

CO

OLIN

G C

OIL

SUPPLY FAN

BAS

INTERFACEDRAIN PAN WATER LEVEL

DETECTION DEVICE

SPD

AO

CONDESER SECTION

OUTSIDE AIR

HE

AT

ING

CO

IL

POS

AO

POS

AI

FO

FIN

AL F

ILT

ER

ATS

AI

ALM

BI

SUPPLY AIR

SP

AI

TS

AI

ATS

AI

TS

AISPACE TEMPERATURE SENSOR

SS

BO

ALM

BI

ALM

BI

POS

AI

DM

AO

M

FAN MOTOR

EXHAUST AIREXHAUST AIR

M

ALM

BI

CSR

VSD

SPD

AO

SS

BO

ALM

BI

FAN

MOTOR

SS

BO

EXHAUST AIR

ALM

BI

CSR

M

FAN

ROOF

FAN MOTOR

SS

BO


M

ALM

BI

CSR

OR

FAN MOTOR

SS

BO


M

ALM

BI

CSR

TS

AISPACE TEMPERATURE

SU

PP

LY

AIR

UNIT

CONTROL

PANEL

TS

AISPACE TEMPERATURE

PR

IMA

RY

AIR

AF

AO

AF

AI

POS

AO

POS

AI

TS

AI

CONTROL FOR HOT WATER

CONTROL VALVE.

MODULATING

VALVE

HOT WATER COIL

SU

PP

LY

AIR

FAN

UNIT

CONTROL

PANEL

TS

AISPACE TEMPERATURE

RETURN AIR FROM PLENUM

PR

IMA

RY

AIR

AF

AO

AF

AI

SS

BO

POS

AI

POS

AO

TS

AI

HOT WATER HEATING COIL

CONTROL FOR HOT

WATER VALVE

MODULATING VALVE

STS

BI

FAN CONTROL

VFD

ALM

BI

SS

BO

TS

AI

TS

AI

HOT WATER RETURN

TEMPERATURE

HOT WATER SUPPLY

TEMPERATURE

HOT WATER SUPPLY TO SYSTEM

HOT WATER RETURN FROM SYSTEM

HOT WATER SUPPLY FROM CAMPUS LOOP

HOT WATER RETURN TO CAMPUS LOOP

FAN MOTOR


M

ALM

BI

CSR

VSD

SPD

AO

SS

BO

ALM

BI

SP

AI

WELDING BOOTH STATIC

PRESSURE SENSOR

EXHAUST AIR

SS

BOSTART-STOP PUSH BUTTON ON WALL

HOT WATER COIL(TYP OF 8)

VLV

AO

VLV

AI

48" x 24" MOTORIZED DAMPER (TYP OF 12)

M

POS

AI

DM

AO

TS

AI DISCHARGE AIR

TEMPERATURE SENSOR

eb^qfkd=`lfi=tbiafkd=j^hbJrm=^fo=pvpqbj tbiafkd=_llqe=bue^rpq=^fo=pvpqbj

M

GRAVITY

VENTILATOR

ROOF

MDM

AO

POS

AI

NOTE: FAN MANUFACTURER TO PROVIDE CUSTOM CONTROL

ENCLOSURE TO HOUSE FAN VFD, STATIC PRESSURE

TRANSDUCER, REMOTE START/STOP CONTACTS, AND A DRY

CONTACT FOR THE EMERGENCY SHUT DOWN. COORDINATE WITH

BAS CONTRACTOR FOR MONITORING POINTS AND CONTROL.OFF

BOEMERGENCY STOP BUTTON ON WALL

BYPASS DAMPER

DM

AO

POS

AI

CHITECTSCP

RA

MOSE

ELY

N

CO

RPORAT IO

N

O

RTH OCAR

L I

NA

REGIST

ERE

D ENGINE

ERING

EIGH, NCRAL

SEAL

SONP. FORS

Y

037569

TH

JA

CAROLINA

HTRO

N

PR

OFESSIONA

L

ENG INEE

R11/6/20


C-3469

PROJECT NO:

DATE:

PH

ON

E (

919

) 8

40

-009

1

911

N. W

ES

T S

TR

EE

T, S

UIT

E 2

05

R

ALE

IGH

, N

OR

TH

CA

RO

LIN

A 27

60

3

A

B

C

D

E

1 2 4 53 6 7 8 9 10

F

G

H

I

J

12

/8/2

02

0 1

1:0

2:3

1 A

M CONTROLS

WA

YN

E C

OM

MU

NIT

Y C

OL

LE

GE

AD

VA

NC

ED

MA

NU

FA

CT

UR

ING

CE

NT

ER

RE

NO

VA

TIO

N

3000

Way

ne

Mem

ori

al D

r, G

old

sbo

ro, N

C 2

7534

M7.1

SC

O I

D #

16

-15

90

6-0

1A

593101

NOVEMBER 6, 2020

PACKAGED VAV AIR HANDLING UNIT SERVING TERMINAL UNITS (AHU-1)PACKAGED CAV AIR HANDLING UNIT (AHU-2)

EXHAUST FAN WITH VFD - CONTROLLEDBY BAS SCHEDULE (F-1)

EXHAUST FAN - CONTROLLED BYBAS SCHEDULE (F-4, F-6)

EXHAUST FAN - CONTROLLED BYBAS SENSOR (F-5)

TERMINAL UNIT WITH MODULATING

CONTROL OF HOT WATER HEAT

PARALLEL FAN POWERED TERMINAL UNIT

WITH MODULATING HOT WATER HEATING COIL

HOT WATER PUMP CONTROLSWELDING EXHAUST SYSTEM CONTROLS

REVISIONS

DATE DESCRIPTION

12/8/20 *AD-01

*AD-01

701 N. Lilac Drive P.O. Box 1452 Minneapolis, MN 55440-1452 T: 763.540.1200 F: 763.540.1437

Terrence Scholz

PRODUCT SUBSTITUTION REQUEST: To: Greg Hedrick, Daniels & Daniels Construction Co., Inc. Project: Wayne CC-Advanced Manufacturing Center Renovations Item: Requesting approval of or equal to product substitution Description: Seamless Resinous/Epoxy Flooring Division: 9 Finishes Section: 09 6724 High-Performance Floor Paragraph/Article: 2.1.A.1 BASF TENNANT COMPANY- ARCHITECTURAL COATINGS REQUEST THE FOLLOWING PRODUCT SUBSTITUTION: Tennant Company Equivalent System: Tennant Performance HTS: Primer: Eco-MPE Build Coat: Eco-MPE Topcoat: Eco-HTS 100 Attached data includes product description, specifications, performance and test data adequate for evaluation of the request. The undersigned certifies that the following paragraphs, unless modified by attachment are correct:

I. The proposed substitution does not affect dimensions shown on drawings. II. The proposed substitution will have no adverse effect on the trades, the construction

schedule, or specified warranty requirements. III. Local support and availability will be available for proposed substitution.

The undersigned further states that the function and quality of the product substitution is equivalent or superior to the specified item. Submitted By: Signature: _____________________________________________ Name: Terrence Scholz Firm: Tennant Company-Architectural Coatings Address: 701 Lilac Drive North, Minneapolis, MN 55440 Date: 12/2/2020 Telephone: 763-513-2182 Attachments: Product Bulletins

Approved Not Approved Approved As Noted More Information Requested

By: Kyle Springer Date: 12/8/20 Remarks: ____________________________________________________________

ADDENDUM # 1...072419 EIFS 072726 Fluid Applied Vapor Retarding Membrane Air Barriers 074216...

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