01KTW19HYAGV486HFH489XWFMW.pdf

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Attached to
GESPC II Project - Commissioning Services
Solicitation number
PE-92200-RFQ-2027-000000091
Issued by
Fulton County, Georgia

About this file

Written by GovTribe AI ·

This file contains mechanical HVAC controls drawings and design specifications for the Georgia World Congress Center (GWCC) Controls Upgrade project, prepared by TLC Engineering Solutions for the Georgia World Congress Center Authority. The project represents a phased energy savings performance contract (GESPC II) involving comprehensive DDC (direct digital control) system upgrades across four buildings (A, B, C, and associated facilities) at the 285 Andrew Young International Boulevard NW facility in Atlanta, Georgia. The drawings document existing sequences of operation and control system point summaries for numerous air handling units (AHUs), blower coil units, and associated mechanical equipment, with detailed specifications for temperature sensors, damper modulation controls, fan status monitoring, humidity controls, smoke detection integration, and supply/return air management systems. The project encompasses multiple phases of implementation, with drawings dated August 15, 2025, and TLC Project No. 824273 for preliminary design and IGA development.

The controls upgrade addresses air handling equipment across Building A (Phase I) with nine mechanical control summary drawings covering AHU variants, Building C (Phase IV) with twenty-two control summaries for various PAHU units and AHU configurations, and Building B across Phases II and III with eighteen control summary drawings for diverse equipment types including RTUs, fan coil units, and heating/ventilation units. The design incorporates advanced control features including variable frequency drives (VFDs), outside air optimization dampers, mixed air temperature monitoring, low-limit and high-limit temperature switches, ductwork static pressure sensors, differential pressure monitoring for air filters and dampers, supply and return fan controls, and zone-based temperature and humidity management with CO2 monitoring capabilities in applicable areas. The technical specifications indicate integration with existing building systems and preparation for operational improvements associated with the GESPC II commissioning services procurement announced by the Georgia World Congress Center Authority.

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GESPC II Commissioning Fee Proposal Form.docx DOCX document

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Drawing No.:

Scale:

Revisions:

Drawing Title:

Approved By:

Issue Date:

Project No.:

Drawn By:

4360 Chamblee Dunwoody Rd Suite 210

Atlanta, GA 30341 P 770.451.6757 www.tlc-engineers.com

© Copyright 2020 TLC Engineering Solutions, Inc.

TLC Project No.:

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No. Date Description

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822108

824273

08.15.2025

T-001

Georgia World Congress Center Georgia Energy Savings Performance Contract II

Controls Upgrade 285 Andrew Young International Boulevard NW

Atlanta, GA 30313 General

T0.1 COVERSHEET

Mechanical

BUILDING A (PHASE I)

M-A101 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNITS AHU-M-1 THROUGH AHU-M-8 (BUILDING A)

M-A102 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNITS AHU-HF-1 THROUGH AHU-HF-5 (BUILDING A)

M-A103 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNITS AHU-S-1 THROUGH AHU-S-7, PLUS AHU-S-9, S-10, S-12 & S-13 (BUILDING A)

M-A104 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNITS AHU-S-8, S-11 & S-14 (BUILDING A)

M-A105 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNIT AHU-S-15 (BUILDING A)

M-A106 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNIT AHU-M-9 (BUILDING A)

BUILDING C (PHASE IV)

M-601 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNITS PAHU-4-1 THROUGH PAHU-4-16 (BUILDING C)

M-602 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNITS PAHU-4-17, 19, 22, 23, 26, 28-33, 38, 39, 41 & 42 (BUILDING C)

M-603 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNITS PAHU-4-18, 20, 21, 24, 25 & 27 (BUILDING C)

M-604 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNITS PAHU-4-34 THROUGH PAHU-4-37 (BUILDING C)

M-605 MECHANICAL CONTROL SUMMARY, AIR HANDLING UNITS AHU-B-1, 3, 5, 8 & 9 (BUILDING C)

M-606 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNITS AHU-B-10 (BUILDING C)

M-607 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNITS AHU-P-1 (BUILDING C)

M-608 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNITS AHU-P-7 (BUILDING C)

M-609 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNITS AHU-B-11 & AHU-B-12 (BUILDING C)

M-610 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNITS AHU-B-13 & AHU-B-14 AND AHU-P-9 (BUILDING C)

M-611 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNITS AHU-E-1 TO E-4, P-2, 3, 4 & 8 (BUILDING C)

M-612 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNITS AHU-P-6 (BUILDING C)

M-613 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNITS AHU-B-15, E-7, E-9, P-10, P-11 (BUILDING C)

M-614 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNITS AHU-00-1, 00-2 (BUILDING C)

M-615 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNITS SERVING HUMAN RESOURCES & LABOR POOL (BUILDING C)

M-616 MECHANICAL CONTROLS SUMMARY, BLOWER COIL UNITS, BC-P-1, B-1, B-2, E-1 THROUGH E-4 (BUILDING C)

M-617 MECHANICAL CONTROLS SUMMARY, HEATING & VENTILATION UNITS HVU-E-1 THROUGH HVU-E-7 (BUILDING C)

M-618 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNIT AHU-E-10 (BUILDING C)

M-619 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNITS AHU-01-1, 02-1, 03-1, 04-1 & 04-3 (BUILDING C)

M-620 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNIT AHU-01-2 (BUILDING C)

M-621 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNITS AHU-E-5 & AHU-E-6 (BUILDING C)

M-622 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNIT AHU-04-2 (BUILDING C)

BUILDING B (PHASE II)

M-623 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNITS AHU-1-S4, AHU-3-S1 & AHU-3-S2 (BUILDING B, PHASE II)

M-624 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNITS AHU-4-S1 & AHU-4-S2 (BUILDING B, PHASE II)

M-625 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNITS AHU-3-11 & AHU-4-S5 (BUILDING B, PHASE II)

M-626 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNITS AHU-1-S3, AHU-2-S1 & AHU-2-S2 (BUILDING B, PHASE II)

M-627 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNITS AHU-2-S1, AHU-2-S3 & AHU-2-S4 (BUILDING B, PHASE II)

M-628 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNIT AHU-1-S5 (BUILDING B, PHASE IIC)

M-629 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNIT AHU-ENT-S3 (BUILDING B, PHASE II)

M-630 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNITS AHU-1-S2, 2-S5, 3-S9, 3-S10, G-S1, G-S2, G-S3, G-S4 (BUILDING B, PHASE II)

M-631 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNIT AHU-G-S12 (BUILDING B, PHASE II)

M-632 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNITS AHU-4-S3 & AHU-4-S4 (BUILDING B, PHASE II)

M-633 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNIT AHU-CON-S1 (BUILDING B, PHASE II)

M-634 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNITS AHU-ENT-S1 & AHU-ENT-S2 (BUILDING B, PHASE II)

M-635 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNIT AHU-3-S3, AHU-3-S5 & AHU-3-S6 AND EXHAUST FANS EE-1, EE-2 & EE-3 (BUILDING B, PHASE II)

M-636 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNITS AHU-EX-S1, EX-S5, EX-S6, EX-S8, EX-S9, EX-S10, EX-S11, EX-S12, EX-S13 (BUILDING B, PHASE II)

BUILDING B (PHASE III)

M-637 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNITS AHU-1-1, 1-2, 3-1, 3-3, 3-4, 3-5, AND 3-7 THRU 3-12 (BUILDING B, PHASE III)

M-638 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNITS RTU-2-1, 3-1, 3-2, 3-3, 3-4, 3-5, 3-6, 3-7, 3-8, 3-9, 3-10, 3-11, EH-1, EH-2, EH-3, EH-4, EH-5, EH-6, EH-7, EH-7, EH-8, EH-9, EH-10, EH-11, EH-12, EH-13, EH-14, EH-14, EH-15, EH-16, EH-17, EH-18, EH-19 (BUILDING B, PHASE III)

M-639 MECHANICAL CONTROLS SUMMARY, AIR HANDLING UNITS AHU-3-2, 3-6, 3-13, 3-14, 3-15, 3-16, 3-17, 3-18, 3-19, 3-20, 3-21, 3-22, 3-23 (BUILDING B, PHASE III)

M-640 MECHANICAL CONTROLS SUMMARY, FAN COIL UNITS FCU-2-1, FCU-2-2, FCU-2-3, FCU-3-1, FCU-3-2 & FCU-3-3 (BUILDING B, PHASE III)

R COONS

R PARKINS

NO SCALE

COVERSHEET

Scale:

Revisions:

Drawing Title:

Approved By:

Issue Date:

Project No.:

Drawn By:

4360 Chamblee Dunwoody Rd Suite 210

Atlanta, GA 30341 P 770.451.6757 www.tlc-engineers.com

© Copyright 2020 TLC Engineering Solutions, Inc.

TLC Project No.:

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822108

824273

08.15.2025

M-A101

SEQUENCES OF OPERATION (EXISTING):

KCC

RNP

N/A

MECHANICAL

CONTROLS

SUMMARY

SUPPLY

AIR

HW

HW INHW OUT

S

SF

M

CS

DI: Current Switch/Supply Fan Status

VFD

DI: Supply Fan VFD Fault

AO: Supply Fan VFD Speed via DDC Modulation

CHW

CHW INCHW OUT

S AO: Chilled Water Coil Control Valve Modulation

AO: Hot Water Coil Control Valve Modulation

DO: Supply Fan Start/Stop

T AI: Chilled Water Coil Return Temperature

T AI: Chilled Water Coil Supply Temperature

Supply Air Smoke Detector

SN.C.

HAI: Return Air Humidity

T

S

AO: Outside Air Damper Modulation

N.C.

AI: Outside Air Damper Position (%)

AI: Outside Air Temperature

OUTSIDE

AIR

RETURN

AIR

S

AO: Supply Air Damper Modulation

N.C.

AI: Supply Air Damper Position (%)

S

N.O.

AO: Supply Air Damper Modulation

AI: Supply Air Damper Position (%)

T

T

AI: Cold Deck Supply Air Temperature

AI: Cold Deck Supply Air Temperature

T

AI: Zone Supply Air Temperature

TYPICAL PER ZONE

T AI: Zone Temperature

TYPICAL PER ZONE

AO: Outside Air Damper Modulation

AI: Outside Air Damper Position (%)

T AI: Return Air Temperature

AI: Hot Water Coil Control Valve Position (%)

AI: Hot Water Coil Control Valve Position (%)

AI: Outside Airflow

T DI: Low Limit Temperature Switch

H L

DI: Ductwork Static Pressure, High Limit

AI: Supply Air Differential Pressure Sensor

H L

AI: Air Filter Differential Pressure Sensor

H L

DDC CONTROL

SYSTEM POINTS

INPUT/OUTPUT

SUMMARY

T

AI: Mixed Air Temperature

Scale:

Revisions:

Drawing Title:

Approved By:

Issue Date:

Project No.:

Drawn By:

4360 Chamblee Dunwoody Rd Suite 210

Atlanta, GA 30341 P 770.451.6757 www.tlc-engineers.com

© Copyright 2020 TLC Engineering Solutions, Inc.

TLC Project No.:

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No. Date Description

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822108

824273

08.15.2025

M-A102

OUTSIDE

AIR

RETURN

AIR

S N.C.

HW

HW INHW OUT

S

AO: Reheat Hot Water Coil Control Valve Modulation

SUPPLY AIR

SF

M

CS

Starter

T

DI: Low Limit Temperature Switch

CHW

CHW INCHW OUT

SAO: Chilled Water Coil Control Valve Modulation

T

AI: Supply Air Temperature

KC

RNP

N/A

MECHANICAL

CONTROLS

SUMMARY

DDC CONTROL

SYSTEM POINTS

INPUT/OUTPUT

SUMMARY

DI: Current Switch/Supply Fan Status

DO: Supply Fan Start/Stop

T AI: Zone Temperature

H

AI: Supply Air HumidityT AI: Chilled Water Coil Return Temperature

AO: Outside Air Damper Modulation

AI: Outside Air Damper Position (%)

SEQUENCES OF OPERATION (EXISTING):

T

AI: Chilled Water Coil Return TemperatureAI: Air Filter Differential Pressure Sensor

H L

Scale:

Revisions:

Drawing Title:

Approved By:

Issue Date:

Project No.:

Drawn By:

4360 Chamblee Dunwoody Rd Suite 210

Atlanta, GA 30341 P 770.451.6757 www.tlc-engineers.com

© Copyright 2020 TLC Engineering Solutions, Inc.

TLC Project No.:

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No. Date Description

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822108

824273

08.15.2025

M-A103

RETURN

AIR

OUTSIDE

AIR

HW

HW INHW OUT

S

AO: Reheat Hot Water Coil Control Valve Modulation

SUPPLY AIR

T

CHW

CHW INCHW OUT

SAO: Chilled Water Coil Control Valve Modulation

T

AI: Supply Air Temperature

KC

RNP

N/A

MECHANICAL

CONTROLS

SUMMARY

DDC CONTROL

SYSTEM POINTS

INPUT/OUTPUT

SUMMARY

T AI: Zone Temperature

T AI: Chilled Water Coil Return Temperature

SEQUENCES OF OPERATION (EXISTING):

T

AI: Chilled Water Coil Return Temperature

S

AO: Outside Air Damper Modulation

N.C.

AI: Outside Air Dampers Position (%)

T

AI: Mixed Air Temperature

DI: Low Limit Temperature Switch

H

AI: Mixed Air Humidity

SF

M

CS

DI: Current Switch/Supply Fan Status

VFD

DO: Supply Fan Start/StopDI: Supply Fan VFD Fault

AO: Supply Fan VFD Speed via DDC Modulation

S

AO: Return Air Damper Modulation

N.C.

AI: Return Air Dampers Position (%)

H L

DI: Ductwork Static Pressure, High LimitAI: Outside Airflow

AI: Air Filter Differential Pressure Sensor

Scale:

Revisions:

Drawing Title:

Approved By:

Issue Date:

Project No.:

Drawn By:

4360 Chamblee Dunwoody Rd Suite 210

Atlanta, GA 30341 P 770.451.6757 www.tlc-engineers.com

© Copyright 2020 TLC Engineering Solutions, Inc.

TLC Project No.:

/9

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:5 5:

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No. Date Description

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822108

824273

08.15.2025

M-A104

RETURN

AIR

OUTSIDE

AIR

HW

HW INHW OUT

S

AO: Reheat Hot Water Coil Control Valve Modulation

SUPPLY AIR

CHW

CHW INCHW OUT

SAO: Chilled Water Coil Control Valve Modulation

T

AI: Supply Air Temperature

KC

RNP

N/A

MECHANICAL

CONTROLS

SUMMARY

DDC CONTROL

SYSTEM POINTS

INPUT/OUTPUT

SUMMARY

T AI: Zone Temperature

T AI: Chilled Water Coil Return Temperature

SEQUENCES OF OPERATION (EXISTING):

T

AI: Chilled Water Coil Return Temperature

S

AO: Outside Air Damper Modulation

N.C.

AI: Outside Air Dampers Position (%)

AI: Return Air Humidity

SF

M

CS

DI: Current Switch/Supply Fan Status

VFD

DO: Supply Fan Start/StopDI: Supply Fan VFD Fault

AO: Supply Fan VFD Speed via DDC Modulation

S

AO: Return Air Damper Modulation

N.C.

AI: Return Air Dampers Position (%)

H L

DI: Ductwork Static Pressure, High LimitH

AI: Return Air TemperatureT

T

DI: Low Limit Temperature Switch

AI: Outside Airflow

Scale:

Revisions:

Drawing Title:

Approved By:

Issue Date:

Project No.:

Drawn By:

4360 Chamblee Dunwoody Rd Suite 210

Atlanta, GA 30341 P 770.451.6757 www.tlc-engineers.com

© Copyright 2020 TLC Engineering Solutions, Inc.

TLC Project No.:

/9

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No. Date Description

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822108

824273

08.15.2025

M-A105

OUTSIDE

AIR

HW

HW INHW OUT

S

AO: Reheat Hot Water Coil Control Valve Modulation

SUPPLY AIR

CHW

CHW INCHW OUT

SAO: Chilled Water Coil Control Valve Modulation

T

AI: Supply Air Temperature

KC

RNP

N/A

MECHANICAL

CONTROLS

SUMMARY

DDC CONTROL

SYSTEM POINTS

INPUT/OUTPUT

SUMMARY

T AI: Zone Temperature

T AI: Chilled Water Coil Return Temperature

SEQUENCES OF OPERATION (EXISTING):

T

AI: Chilled Water Coil Return Temperature

S

AO: Outside Air Damper Modulation

N.C.

AI: Outside Air Dampers Position (%)

SF

M

CS

DI: Current Switch/Supply Fan Status

VFD

DO: Supply Fan Start/StopDI: Supply Fan VFD Fault

AO: Supply Fan VFD Speed via DDC Modulation

H L

DI: Ductwork Static Pressure, High Limit

T

DI: Low Limit Temperature Switch

Scale:

Revisions:

Drawing Title:

Approved By:

Issue Date:

Project No.:

Drawn By:

4360 Chamblee Dunwoody Rd Suite 210

Atlanta, GA 30341 P 770.451.6757 www.tlc-engineers.com

© Copyright 2020 TLC Engineering Solutions, Inc.

TLC Project No.:

/9

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No. Date Description

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A

822108

824273

08.15.2025

M-A106

SEQUENCES OF OPERATION (EXISTING):

KCC

RNP

N/A

MECHANICAL

CONTROLS

SUMMARY

SF

M

CS

DI: Current Switch/Supply Fan Status

VFD

DI: Supply Fan VFD Fault

AO: Supply Fan VFD Speed via DDC Modulation

DO: Supply Fan Start/Stop

T

S

AO: Outside Air Damper Modulation

N.C.

AI: Outside Air Damper Position (%)

AI: Outside Air Temperature

OUTSIDE

AIR

AI: Air Filter Differential Pressure Sensor

HL

DDC CONTROL

SYSTEM POINTS

INPUT/OUTPUT

SUMMARY

T

DI: Low Limit Temperature Switch

HW

HW INHW OUT

S

AO: Reheat Hot Water Coil Control Valve Modulation

SUPPLY AIR

CHW

CHW INCHW OUT

SAO: Chilled Water Coil Control Valve Modulation

T

AI: Supply Air Temperature T

AI: Chilled Water Coil Return Temperature

T

AI: Chilled Water Coil Return Temperature

H L

DI: Ductwork Static Pressure, High Limit

AI: Zone Temperature

Scale:

Revisions:

Drawing Title:

Approved By:

Issue Date:

Project No.:

Drawn By:

4360 Chamblee Dunwoody Rd Suite 210

Atlanta, GA 30341 P 770.451.6757 www.tlc-engineers.com

© Copyright 2020 TLC Engineering Solutions, Inc.

TLC Project No.:

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No. Date Description

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822108

824273

08.15.2025

M-601

SEQUENCES OF OPERATION (EXISTING):

OUTSIDE

AIR

S

AO: Outside Air Damper Modulation

N.C.

DI: Outside Air Damper Open/Close Contact

S N.O.

AO: Return Air Damper Modulation

DI: Return Air Damper Open/Close Contact

EXHAUST

AIR

S

AO: Exhaust Air Damper 1 Modulation

N.C.

DI: Exhaust Air Damper 1 Open/Close Contact

EXHAUST

AIR

S

AO: Exhaust Air Damper 2 Modulation

N.C.

DI: Exhaust Air Damper 2 Open/Close Contact

T

AI: Mixed Air Temperature

HW

HW INHW OUT

S

AO: Preheat Hot Water Coil Control Valve Modulation

T

AI: Preheat Hot Water Coil Discharge Air Temperature

T

BI: Low Limit Temperature Switch

CHW

CHW INCHW OUT

S

AO: Chilled Water Coil Control Valve Modulation

SF

M

CS

DI: Current Switch/Supply Fan Status

VFD DO: Supply Fan Start/StopDI: Supply Fan VFD Fault

AO: Supply Fan VFD Speed via DDC Modulation

T

AI: Supply Air Temperature

Supply Air Smoke Detector

SUPPLY AIR

RF

M

CSDI: Current Switch/Return Fan Status

VFD DO: Return Fan Start/StopDI: Return Fan VFD Fault

AO: Return Fan VFD Speed via DDC Modulation

T

AI: Return Air Temperature

H

AI: Return Air Humidity

Return Air Smoke Detector

RETURN

AIR

DDC CONTROL

SYSTEM POINTS

INPUT/OUTPUT

SUMMARY

T AI: Zone Temperature

H AI: Zone Humidity

CO2 AI: Zone Carbon Dioxide

RNP

RNP

N/A

MECHANICAL

CONTROLS

SUMMARY

AI: Outside Airflow

H

L DI: Return Air Damper Pressure Differential Switch

DI: Mixed Air Plenum Differential Pressure Sensor

HL

Scale:

Revisions:

Drawing Title:

Approved By:

Issue Date:

Project No.:

Drawn By:

4360 Chamblee Dunwoody Rd Suite 210

Atlanta, GA 30341 P 770.451.6757 www.tlc-engineers.com

© Copyright 2020 TLC Engineering Solutions, Inc.

TLC Project No.:

/9

/2

:5 5:

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W C

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IG

A an d Pr el im

D es ig n\

C

AD

-M

EP

\C on st ru ct s\

H

VA

C \C on tro ls D ra w in gs

\P ha se

.d w g

No. Date Description

G eo rg ia

W or ld C on gr es s

C en te r

C on tro ls

U pg ra de

An dr ew Y ou ng

In te rn at io na l B lv d N

W At la nt a, G

A

822108

824273

08.15.2025

M-602

SEQUENCES OF OPERATION (EXISTING):

OUTSIDE

AIR

S

AO: Outside Air Damper Modulation

N.C.

DI: Outside Air Damper Open/Close Contact

S N.O.

AO: Return Air Damper Modulation

DI: Return Air Damper Open/Close Contact

EXHAUST

AIR

S

AO: Exhaust Air Damper 1 Modulation

N.C.

DI: Exhaust Air Damper 1 Open/Close Contact

EXHAUST

AIR

S

AO: Exhaust Air Damper 2 Modulation

N.C.

DI: Exhaust Air Damper 2 Open/Close Contact

T

AI: Mixed Air Temperature

HW

HW INHW OUT

S

AO: Preheat Hot Water Coil Control Valve Modulation

T

AI: Preheat Hot Water Coil Discharge Air Temperature

T

BI: Low Limit Temperature Switch

CHW

CHW INCHW OUT

S

AO: Chilled Water Coil Control Valve Modulation

SF

M

CS

DI: Current Switch/Supply Fan Status

VFD DO: Supply Fan Start/StopDI: Supply Fan VFD Fault

AO: Supply Fan VFD Speed via DDC Modulation

T

AI: Supply Air Temperature

Supply Air Smoke Detector

SUPPLY AIR

RF

M

CSDI: Current Switch/Return Fan Status

VFD DO: Return Fan Start/StopDI: Return Fan VFD Fault

AO: Return Fan VFD Speed via DDC Modulation

T

AI: Return Air Temperature

H

AI: Return Air Humidity

Return Air Smoke Detector

RETURN

AIR

DDC CONTROL

SYSTEM POINTS

INPUT/OUTPUT

SUMMARY

T AI: Zone Temperature

H AI: Zone Humidity

CO2 AI: Zone Carbon Dioxide

RNP

RNP

N/A

MECHANICAL

CONTROLS

SUMMARY

AI: Outside Airflow

H

L DI: Return Air Damper Pressure Differential Switch

Scale:

Revisions:

Drawing Title:

Approved By:

Issue Date:

Project No.:

Drawn By:

4360 Chamblee Dunwoody Rd Suite 210

Atlanta, GA 30341 P 770.451.6757 www.tlc-engineers.com

© Copyright 2020 TLC Engineering Solutions, Inc.

TLC Project No.:

/9

/2

:5 5:

A

M L:

\2

4- Jo bs \8

3- G

W C

C P ha se

IG

A an d Pr el im

D es ig n\

C

AD

-M

EP

\C on st ru ct s\

H

VA

C \C on tro ls D ra w in gs

\P ha se

.d w g

No. Date Description

G eo rg ia

W or ld C on gr es s

C en te r

C on tro ls

U pg ra de

An dr ew Y ou ng

In te rn at io na l B lv d N

W At la nt a, G

A

822108

824273

08.15.2025

M-603

SEQUENCES OF OPERATION (EXISTING):

OUTSIDE

AIR

S

AO: Outside Air Damper Modulation

N.C.

DI: Outside Air Damper Open/Close Contact

S N.O.

AO: Return Air Damper Modulation

DI: Return Air Damper Open/Close Contact

EXHAUST

AIR

S

AO: Exhaust Air Damper 1 Modulation

N.C.

DI: Exhaust Air Damper 1 Open/Close Contact

EXHAUST

AIR

S

AO: Exhaust Air Damper 2 Modulation

N.C.

DI: Exhaust Air Damper 2 Open/Close Contact

T

AI: Mixed Air Temperature

HW

HW INHW OUT

S

AO: Preheat Hot Water Coil Control Valve Modulation

T

AI: Preheat Hot Water Coil Discharge Air Temperature

T

BI: Low Limit Temperature Switch

CHW

CHW INCHW OUT

S

AO: Chilled Water Coil Control Valve Modulation

SF

M

CS

DI: Current Switch/Supply Fan Status

VFD DO: Supply Fan Start/StopDI: Supply Fan VFD Fault

AO: Supply Fan VFD Speed via DDC Modulation

T

AI: Supply Air Temperature

Supply Air Smoke Detector

SUPPLY AIR

RF

M

CSDI: Current Switch/Return Fan Status

VFD DO: Return Fan Start/StopDI: Return Fan VFD Fault

AO: Return Fan VFD Speed via DDC Modulation

T

AI: Return Air Temperature

H

AI: Return Air Humidity

Return Air Smoke Detector

RETURN

AIR

DDC CONTROL

SYSTEM POINTS

INPUT/OUTPUT

SUMMARY

T AI: Zone Temperature

H AI: Zone Humidity

CO2 AI: Zone Carbon Dioxide

RNP

RNP

N/A

MECHANICAL

CONTROLS

SUMMARY

AI: Outside Airflow

H

L DI: Return Air Damper Pressure Differential Switch

Scale:

Revisions:

Drawing Title:

Approved By:

Issue Date:

Project No.:

Drawn By:

4360 Chamblee Dunwoody Rd Suite 210

Atlanta, GA 30341 P 770.451.6757 www.tlc-engineers.com

© Copyright 2020 TLC Engineering Solutions, Inc.

TLC Project No.:

/9

/2

:5 5:

A

M L:

\2

4- Jo bs \8

3- G

W C

C P ha se

IG

A an d Pr el im

D es ig n\

C

AD

-M

EP

\C on st ru ct s\

H

VA

C \C on tro ls D ra w in gs

\P ha se

.d w g

No. Date Description

G eo rg ia

W or ld C on gr es s

C en te r

C on tro ls

U pg ra de

An dr ew Y ou ng

In te rn at io na l B lv d N

W At la nt a, G

A

822108

824273

08.15.2025

M-604

SEQUENCES OF OPERATION (EXISTING):

OUTSIDE

AIR

S

AO: Outside Air Damper Modulation

N.C.

DI: Outside Air Damper Open/Close Contact

HW

HW INHW OUT

S

AO: Preheat Hot Water Coil Control Valve Modulation

T

AI: Preheat Hot Water Coil Discharge Air Temperature

T

BI: Low Limit Temperature Switch

CHW

CHW INCHW OUT

S

AO: Chilled Water Coil Control Valve Modulation

SF

M

CS

DI: Current Switch/Supply Fan Status

VFD DO: Supply Fan Start/StopDI: Supply Fan VFD Fault

AO: Supply Fan VFD Speed via DDC Modulation

T

AI: Supply Air Temperature

Supply Air Smoke Detector

HOOD

SUPPLY AIR

DDC CONTROL

SYSTEM POINTS

INPUT/OUTPUT

SUMMARY

HOOD

EXHAUST

AIR

KEF

M

CS DI: Current Switch/Kitchen Exhaust Fan Status

Starter DO: Kitchen Exhaust Fan Start/Stop

EXHAUST AIR

RNP

RNP

N/A

MECHANICAL

CONTROLS

SUMMARY

H

AI: Supply Air Humidity

Scale:

Revisions:

Drawing Title:

Approved By:

Issue Date:

Project No.:

Drawn By:

4360 Chamblee Dunwoody Rd Suite 210

Atlanta, GA 30341 P 770.451.6757 www.tlc-engineers.com

© Copyright 2020 TLC Engineering Solutions, Inc.

TLC Project No.:

/9

/2

:5 5:

A

M L:

\2

4- Jo bs \8

3- G

W C

C P ha se

IG

A an d Pr el im

D es ig n\

C

AD

-M

EP

\C on st ru ct s\

H

VA

C \C on tro ls D ra w in gs

\P ha se

.d w g

No. Date Description

G eo rg ia

W or ld C on gr es s

C en te r

C on tro ls

U pg ra de

An dr ew Y ou ng

In te rn at io na l B lv d N

W At la nt a, G

A

822108

824273

08.15.2025

M-605

SEQUENCES OF OPERATION (EXISTING):

HW

HW INHW OUT

S

AO: Preheat Hot Water Coil Control Valve Modulation

T

AI: Preheat Hot Water Coil Discharge Air Temperature

T

BI: Low Limit Temperature Switch

CHW

CHW INCHW OUT

S

AO: Chilled Water Coil Control Valve Modulation

SF

M

CS

DI: Current Switch/Supply Fan Status

VFDDO: Supply Fan Start/Stop DI: Supply Fan VFD Fault

AO: Supply Fan VFD Speed via DDC Modulation

T

AI: Supply Air Temperature Supply Air Smoke Detector

SUPPLY AIR

SMOKE

EXHAUST

S

AO: Smoke Exhaust Fan Damper Modulation

DI: Smoke Exhaust Fan Damper Open/Close Contact

SEF

M

CSDI: Current Switch/Smoke Exhaust Fan Status

StarterDO: Smoke Exhaust Fan Start/Stop

OUTSIDE

AIR

S

AO: Outside Air Damper Modulation

N.C.

DI: Outside Air Damper Open/Close Contact

S N.O.

AO: Return Air Damper Modulation

DI: Return Air Damper Open/Close Contact

T

AI: Return Air Temperature

H

AI: Return Air Humidity

Return Air Smoke Detector

RETURN

AIR

T

AI: Mixed Air Temperature

HW

HW INHW OUT

S

AO: Reheat Hot Water Coil Control Valve Modulation

DI: Ductwork Static Pressure, High Limit

H L

DDC CONTROL

SYSTEM POINTS

INPUT/OUTPUT

SUMMARY

T AI: Zone Temperature H AI: Zone Humidity CO2 AI: Zone Carbon Dioxide

RNP

RNP

N/A

MECHANICAL

CONTROLS

SUMMARY

AI: Outside Airflow

HW

HW INHW OUT

S

AO: Preheat Hot Water Coil Control Valve Modulation

T

AI: Preheat Hot Water Coil Discharge Air Temperature

T

BI: Low Limit Temperature Switch

CHW

CHW INCHW OUT

S

AO: Chilled Water Coil Control Valve Modulation

SF

M

CS

DI: Current Switch/Supply Fan Status

VFDDO: Supply Fan Start/Stop DI: Supply Fan VFD Fault

AO: Supply Fan VFD Speed via DDC Modulation

T

AI: Supply Air Temperature Supply Air Smoke Detector

SUPPLY AIR

SMOKE

EXHAUST

S

AO: Smoke Exhaust Fan Damper Modulation

DI: Smoke Exhaust Fan Damper Open/Close Contact

SEF

M

CS DI: Current Switch/Smoke Exhaust Fan Status

Starter DO: Smoke Exhaust Fan Start/Stop

OUTSIDE

AIR

S

AO: Outside Air Damper Modulation

N.C.

DI: Outside Air Damper Open/Close Contact

S N.O.

AO: Return Air Damper Modulation

DI: Return Air Damper Open/Close Contact

Seal

Drawing No.:

Scale:

Revisions:

Drawing Title:

Approved By:

Issue Date:

Project No.:

Drawn By:

4360 Chamblee Dunwoody Rd Suite 210

Atlanta, GA 30341 P 770.451.6757 www.tlc-engineers.com

© Copyright 2020 TLC Engineering Solutions, Inc.

TLC Project No.:

/9

/2

:5 5:

A

M L:

\2

4- Jo bs \8

3- G

W C

C P ha se

IG

A an d Pr el im

D es ig n\

C

AD

-M

EP

\C on st ru ct s\

H

VA

C \C on tro ls D ra w in gs

\P ha se

.d w g

No. Date Description

G eo rg ia

W or ld C on gr es s

C en te r

C on tro ls

U pg ra de

An dr ew Y ou ng

In te rn at io na l B lv d N

W At la nt a, G

A

822108

824273

08.15.2025

M-606

SEQUENCES OF OPERATION (EXISTING):

T

AI: Return Air Temperature

H

AI: Return Air Humidity Return Air Smoke Detector

RETURN

AIR

T

AI: Mixed Air Temperature

HW

HW INHW OUT

S

AO: Reheat Hot Water Coil Control Valve Modulation

AI: Ductwork Static Pressure

H L

DDC CONTROL

SYSTEM POINTS

INPUT/OUTPUT

SUMMARY

DI: Ductwork Static Pressure, High Limit

H L

RNP

RNP

N/A

MECHANICAL

CONTROLS

S

AO: Preheat Hot Water Coil Control Valve Modulation

T

AI: Preheat Hot Water Coil Discharge Air Temperature

T

BI: Low Limit Temperature Switch

CHW

CHW INCHW OUT

S

AO: Chilled Water Coil Control Valve Modulation

SF

M

CS

DI: Current Switch/Supply Fan Status

VFDDO: Supply Fan Start/Stop DI: Supply Fan VFD Fault

AO: Supply Fan VFD Speed via DDC Modulation

T

AI: Supply Air Temperature Supply Air Smoke Detector

SUPPLY AIR

SMOKE

EXHAUST

S

AO: Smoke Exhaust Fan Damper Modulation

DI: Smoke Exhaust Fan Damper Open/Close Contact

SEF

M

CS DI: Current Switch/Smoke Exhaust Fan Status

Starter DO: Smoke Exhaust Fan Start/Stop

OUTSIDE

AIR

S

AO: Outside Air Damper Modulation

N.C.

DI: Outside Air Damper Open/Close Contact

S N.O.

AO: Return Air Damper Modulation

DI: Return Air Damper Open/Close Contact

Seal

Drawing No.:

Scale:

Revisions:

Drawing Title:

Approved By:

Issue Date:

Project No.:

Drawn By:

4360 Chamblee Dunwoody Rd Suite 210

Atlanta, GA 30341 P 770.451.6757 www.tlc-engineers.com

© Copyright 2020 TLC Engineering Solutions, Inc.

TLC Project No.:

/9

/2

:5 5:

A

M L:

\2

4- Jo bs \8

3- G

W C

C P ha se

IG

A an d Pr el im

D es ig n\

C

AD

-M

EP

\C on st ru ct s\

H

VA

C \C on tro ls D ra w in gs

\P ha se

.d w g

No. Date Description

G eo rg ia

W or ld C on gr es s

C en te r

C on tro ls

U pg ra de

An dr ew Y ou ng

In te rn at io na l B lv d N

W At la nt a, G

A

822108

824273

08.15.2025

M-607

SEQUENCES OF OPERATION (EXISTING):

T

AI: Return Air Temperature

H

AI: Return Air Humidity Return Air Smoke Detector

RETURN

AIR

T

AI: Mixed Air Temperature

AI: Ductwork Static Pressure

H L

DDC CONTROL

SYSTEM POINTS

INPUT/OUTPUT

SUMMARY

DI: Ductwork Static Pressure, High Limit

H L

TO AHU-P-7

EXHAUST AIR

TO AHU-P-6

EXHAUST AIR

S

AO: Smoke Exhaust Fan Damper Modulation

DI: Smoke Exhaust Fan Damper Open/Close Contact

RNP

RNP

N/A

MECHANICAL

BI: Low Limit Temperature Switch

CHW

CHW INCHW OUT

S

AO: Chilled Water Coil Control Valve Modulation

SF

M

CS

DI: Current Switch/Supply Fan Status

VFDDO: Supply Fan Start/Stop DI: Supply Fan VFD Fault

AO: Supply Fan VFD Speed via DDC Modulation

T

AI: Supply Air Temperature Supply Air Smoke Detector

SUPPLY AIR

SMOKE

EXHAUST

S

AO: Smoke Exhaust Fan Damper Modulation

DI: Smoke Exhaust Fan Damper Open/Close Contact

OUTSIDE

AIR

S

AO: Outside Air Damper Modulation

N.C.

DI: Outside Air Damper Open/Close Contact

S N.O.

AO: Return Air Damper Modulation

DI: Return Air Damper Open/Close Contact

Seal

Drawing No.:

Scale:

Revisions:

Drawing Title:

Approved By:

Issue Date:

Project No.:

Drawn By:

4360 Chamblee Dunwoody Rd Suite 210

Atlanta, GA 30341 P 770.451.6757 www.tlc-engineers.com

© Copyright 2020 TLC Engineering Solutions, Inc.

TLC Project No.:

/9

/2

:5 5:

A

M L:

\2

4- Jo bs \8

3- G

W C

C P ha se

IG

A an d Pr el im

D es ig n\

C

AD

-M

EP

\C on st ru ct s\

H

VA

C \C on tro ls D ra w in gs

\P ha se

.d w g

No. Date Description

G eo rg ia

W or ld C on gr es s

C en te r

C on tro ls

U pg ra de

An dr ew Y ou ng

In te rn at io na l B lv d N

W At la nt a, G

A

822108

824273

08.15.2025

M-608

SEQUENCES OF OPERATION (EXISTING):

T

AI: Return Air Temperature

H

AI: Return Air Humidity

RETURN

AIR

T

AI: Mixed Air Temperature

AI: Ductwork Static Pressure

H L

DDC CONTROL

SYSTEM POINTS

INPUT/OUTPUT

SUMMARY

DI: Ductwork Static Pressure, High Limit

H L

RNP

RNP

N/A

MECHANICAL

CHW

CHW INCHW OUT

S

AO: Chilled Water Coil Control Valve Modulation

SF

M

CS

DI: Current Switch/Supply Fan Status

VFDDO: Supply Fan Start/Stop DI: Supply Fan VFD Fault

AO: Supply Fan VFD Speed via DDC Modulation

T

AI: Supply Air Temperature Supply Air Smoke Detector

OUTSIDE

AIR

S

AO: Outside Air Damper Modulation

N.C.

DI: Outside Air Damper Open/Close Contact

S N.O.AO: Return Air Damper Modulation

DI: Return Air Damper Open/Close Contact

Seal

Drawing No.:

Scale:

Revisions:

Drawing Title:

Approved By:

Issue Date:

Project No.:

Drawn By:

4360 Chamblee Dunwoody Rd Suite 210

Atlanta, GA 30341 P 770.451.6757 www.tlc-engineers.com

© Copyright 2020 TLC Engineering Solutions, Inc.

TLC Project No.:

/9

/2

:5 5:

A

M L:

\2

4- Jo bs \8

3- G

W C

C P ha se

IG

A an d Pr el im

D es ig n\

C

AD

-M

EP

\C on st ru ct s\

H

VA

C \C on tro ls D ra w in gs

\P ha se

.d w g

No. Date Description

G eo rg ia

W or ld C on gr es s

C en te r

C on tro ls

U pg ra de

An dr ew Y ou ng

In te rn at io na l B lv d N

W At la nt a, G

A

822108

824273

08.15.2025

M-609

SEQUENCES OF OPERATION (EXISTING):

T

AI: Return Air Temperature

H

AI: Return Air Humidity

Return Air Smoke Detector

RETURN

AIR

T

AI: Mixed Air Temperature

DDC CONTROL

SYSTEM POINTS

INPUT/OUTPUT

SUMMARY

DI: Ductwork Static Pressure, High Limit

H L

HW

HW INHW OUT

S

AO: Reheat Hot Water Coil Control Valve Modulation

T AI: Zone Temperature H AI: Zone Humidity CO2 AI: Zone Carbon Dioxide

RNP

RNP

N/A

MECHANICAL

CONTROLS

CHW

CHW INCHW OUT

S

AO: Chilled Water Coil Control Valve Modulation

SF

M

CS

DI: Current Switch/Supply Fan Status

VFDDO: Supply Fan Start/Stop DI: Supply Fan VFD Fault

AO: Supply Fan VFD Speed via DDC Modulation

T

AI: Supply Air Temperature Supply Air Smoke Detector

OUTSIDE

AIR

S

AO: Outside Air Damper Modulation

N.C.

DI: Outside Air Damper Open/Close Contact

S N.O.AO: Return Air Damper Modulation

DI: Return Air Damper Open/Close Contact

Seal

Drawing No.:

Scale:

Revisions:

Drawing Title:

Approved By:

Issue Date:

Project No.:

Drawn By:

4360 Chamblee Dunwoody Rd Suite 210

Atlanta, GA 30341 P 770.451.6757 www.tlc-engineers.com

© Copyright 2020 TLC Engineering Solutions, Inc.

TLC Project No.:

/9

/2

:5 5:

A

M L:

\2

4- Jo bs \8

3- G

W C

C P ha se

IG

A an d Pr el im

D es ig n\

C

AD

-M

EP

\C on st ru ct s\

H

VA

C \C on tro ls D ra w in gs

\P ha se

.d w g

No. Date Description

G eo rg ia

W or ld C on gr es s

C en te r

C on tro ls

U pg ra de

An dr ew Y ou ng

In te rn at io na l B lv d N

W At la nt a, G

A

822108

824273

08.15.2025

M-610

SEQUENCES OF OPERATION (EXISTING):

T

AI: Return Air Temperature

H

AI: Return Air Humidity

Return Air Smoke Detector

RETURN

AIR

T

AI: Mixed Air Temperature

DDC CONTROL

SYSTEM POINTS

INPUT/OUTPUT

SUMMARY

DI: Ductwork Static Pressure, High Limit

H L

HW

HW INHW OUT

S

AO: Reheat Hot Water Coil Control Valve Modulation

T AI: Zone Temperature H AI: Zone Humidity

RNP

RNP

N/A

MECHANICAL

CHW

CHW INCHW OUT

S

AO: Chilled Water Coil Control Valve Modulation

SF

M

CS

DI: Current Switch/Supply Fan Status

VFDDO: Supply Fan Start/Stop DI: Supply Fan VFD Fault

AO: Supply Fan VFD Speed via DDC Modulation

T

AI: Supply Air Temperature Supply Air Smoke Detector

OUTSIDE

AIR

S

AO: Outside Air Damper Modulation

N.C.

DI: Outside Air Damper Open/Close Contact

S N.O.AO: Return Air Damper Modulation

DI: Return Air Damper Open/Close Contact

Seal

Drawing No.:

Scale:

Revisions:

Drawing Title:

Approved By:

Issue Date:

Project No.:

Drawn By:

4360 Chamblee Dunwoody Rd Suite 210

Atlanta, GA 30341 P 770.451.6757 www.tlc-engineers.com

© Copyright 2020 TLC Engineering Solutions, Inc.

TLC Project No.:

/9

/2

:5 5:

A

M L:

\2

4- Jo bs \8

3- G

W C

C P ha se

IG

A an d Pr el im

D es ig n\

C

AD

-M

EP

\C on st ru ct s\

H

VA

C \C on tro ls D ra w in gs

\P ha se

.d w g

No. Date Description

G eo rg ia

W or ld C on gr es s

C en te r

C on tro ls

U pg ra de

An dr ew Y ou ng

In te rn at io na l B lv d N

W At la nt a, G

A

822108

824273

08.15.2025

M-611

SEQUENCES OF OPERATION (EXISTING):

T

AI: Return Air Temperature

H

AI: Return Air Humidity

Return Air Smoke Detector

RETURN

AIR

T

AI: Mixed Air Temperature

DDC CONTROL

SYSTEM POINTS

INPUT/OUTPUT

SUMMARY

DI: Ductwork Static Pressure, High Limit

H L

HW

HW INHW OUT

S

AO: Reheat Hot Water Coil Control Valve Modulation

T AI: Zone Temperature H AI: Zone HumidityCO2 AI: Zone Carbon Dioxide

RNP

RNP

N/A

MECHANICAL

CHW

CHW INCHW OUT

S

AO: Chilled Water Coil Control Valve Modulation

SF

M

CS

DI: Current Switch/Supply Fan Status

VFDDO: Supply Fan Start/Stop DI: Supply Fan VFD Fault

AO: Supply Fan VFD Speed via DDC Modulation

T

AI: Supply Air Temperature Supply Air Smoke Detector

SUPPLY AIR

SMOKE

EXHAUST

S

AO: Smoke Exhaust Fan Damper Modulation

DI: Smoke Exhaust Fan Damper Open/Close Contact

OUTSIDE

AIR

S

AO: Outside Air Damper Modulation

N.C.

DI: Outside Air Damper Open/Close Contact

S N.O.AO: Return Air Damper Modulation

DI: Return Air Damper Open/Close Contact

Seal

Drawing No.:

Scale:

Revisions:

Drawing Title:

Approved By:

Issue Date:

Project No.:

Drawn By:

4360 Chamblee Dunwoody Rd Suite 210

Atlanta, GA 30341 P 770.451.6757 www.tlc-engineers.com

© Copyright 2020 TLC Engineering Solutions, Inc.

TLC Project No.:

/9

/2

:5 5:

A

M L:

\2

4- Jo bs \8

3- G

W C

C P ha se

IG

A an d Pr el im

D es ig n\

C

AD

-M

EP

\C on st ru ct s\

H

VA

C \C on tro ls D ra w in gs

\P ha se

.d w g

No. Date Description

G eo rg ia

W or ld C on gr es s

C en te r

C on tro ls

U pg ra de

An dr ew Y ou ng

In te rn at io na l B lv d N

W At la nt a, G

A

822108

824273

08.15.2025

M-612

SEQUENCES OF OPERATION (EXISTING):

T

AI: Return Air Temperature

H

AI: Return Air Humidity

Return Air Smoke Detector

RETURN

AIR

T

AI: Mixed Air Temperature

HW

HW INHW OUT

S

AO: Reheat Hot Water Coil Control Valve Modulation

DI: Ductwork Static Pressure, High Limit

H L

DDC CONTROL

SYSTEM POINTS

INPUT/OUTPUT

SUMMARY

T AI: Zone Temperature H AI: Zone Humidity CO2 AI: Zone Carbon Dioxide

RNP

RNP

N/A

MECHANICAL

CONTROLS

Scale:

Revisions:

Drawing Title:

Approved By:

Issue Date:

Project No.:

Drawn By:

4360 Chamblee Dunwoody Rd Suite 210

Atlanta, GA 30341 P 770.451.6757 www.tlc-engineers.com

© Copyright 2020 TLC Engineering Solutions, Inc.

TLC Project No.:

/9

/2

:5 5:

A

M L:

\2

4- Jo bs \8

3- G

W C

C P ha se

IG

A an d Pr el im

D es ig n\

C

AD

-M

EP

\C on st ru ct s\

H

VA

C \C on tro ls D ra w in gs

\P ha se

.d w g

No. Date Description

G eo rg ia

W or ld C on gr es s

C en te r

C on tro ls

U pg ra de

An dr ew Y ou ng

In te rn at io na l B lv d N

W At la nt a, G

A

822108

824273

08.15.2025

M-623

SEQUENCES OF OPERATION (EXISTING):

KC

RNP

N/A

MECHANICAL

CONTROLS

SUMMARY

RETURN

AIR

RELIEF

AIR

N.C.

N.C.

N.C.

S N.O.

SF

MINIMUM

OUTSIDE

AIR

MAXIMUM

OUTSIDE

AIR

S

AO: Minimum Outside Air Damper Modulation

AI: Minimum Outside Air Damper Position (%) D-1

S

AO: Maximum Outside Air Damper Modulation

AI: Maximum Outside Air Damper Position (%) D-2

S

AO: Relief Air Damper Modulation

AI: Relief Air Damper Position (%) D-4

AO: Return Air Damper Modulation

D-3

AI: Return Air Damper Position (%)

T

DI: Low Limit Temperature Switch

LTC-1

T

AI: Return Air Temperature

TT-2

SD-2

Return Air Smoke Detector

HW

HW INHW OUT

S

AO: Heating Hot Water Coil Control Valve Modulation

V-2

CHW

CHW INCHW OUT

S

AO: Chilled Water Coil Control Valve Modulation

V-1

M

CS

DI: Current Switch/Supply Fan Status

StarterDO: Supply Fan Start/Stop

SUPPLY

AIR

T

AI: Supply Air Temperature

H L

S

N.O.

AO: Supply Air Damper Modulation

AI: Ductwork Static Pressure, Supply

PC-1

TT-1

D-5

Supply Air Smoke Detector

DI: Ductwork Static Pressure, High Limit

H L

DDC CONTROL

SYSTEM POINTS

INPUT/OUTPUT

SUMMARY

AI: Supply Air Damper Position (%)

AI: Return Air Humidity

Scale:

Revisions:

Drawing Title:

Approved By:

Issue Date:

Project No.:

Drawn By:

4360 Chamblee Dunwoody Rd Suite 210

Atlanta, GA 30341 P 770.451.6757 www.tlc-engineers.com

© Copyright 2020 TLC Engineering Solutions, Inc.

TLC Project No.:

/9

/2

:5 5:

A

M L:

\2

4- Jo bs \8

3- G

W C

C P ha se

IG

A an d Pr el im

D es ig n\

C

AD

-M

EP

\C on st ru ct s\

H

VA

C \C on tro ls D ra w in gs

\P ha se

.d w g

No. Date Description

G eo rg ia

W or ld C on gr es s

C en te r

C on tro ls

U pg ra de

An dr ew Y ou ng

In te rn at io na l B lv d N

W At la nt a, G

A

822108

824273

08.15.2025

M-624

SEQUENCES OF OPERATION (EXISTING):

RETURN

AIR

RELIEF

AIR

S

N.C.

N.C.

N.O.

HW

HW INHW OUT

S

AO: Heating Hot Water Coil Control Valve Modulation

SF

T

CHW

CHW INCHW OUT

S

AO: Chilled Water Coil Control Valve Modulation

S

N.C.

MINIMUM

OUTSIDE

AIR

MAXIMUM

OUTSIDE

AIR

AO: Minimum Outside Air Damper Modulation

AI: Minimum Outside Air Damper Position (%) D-1

S

AO: Maximum Outside Air Damper Modulation

AI: Maximum Outside Air Damper Position (%) D-2

S AO: Return Air Damper Modulation

D-3

AI: Return Air Damper Position (%)

DI: Low Limit Temperature Switch

LTC-1

V-2 V-1

SD-2

Return Air Smoke Detector

T

AI: Return Air Temperature

TT-2

SUPPLY

AIR

H L

AI: Ductwork Static Pressure, Supply

PC-1

Supply Air Smoke Detector

SD-1

DI: Ductwork Static Pressure, High Limit

H LT

AI: Supply Air Temperature

TT-1

M

CS

DI: Current Switch/Supply Fan Status

Starter DO: Supply Fan Start/Stop

AO: Supply Fan Inlet Vane Damper Modulation

AI: Supply Fan Inlet Vane Damper Position (%) D-5

DDC CONTROL

SYSTEM POINTS

INPUT/OUTPUT

SUMMARY

AI: Outside Airflow

T AI: Zone Temperature

CO2 AI: Zone Carbon Dioxide

KC

RNP

N/A

MECHANICAL

CONTROLS

SUMMARY

Scale:

Revisions:

Drawing Title:

Approved By:

Issue Date:

Project No.:

Drawn By:

4360 Chamblee Dunwoody Rd Suite 210

Atlanta, GA 30341 P 770.451.6757 www.tlc-engineers.com

© Copyright 2020 TLC Engineering Solutions, Inc.

TLC Project No.:

/9

/2

:5 5:

A

M L:

\2

4- Jo bs \8

3- G

W C

C P ha se

IG

A an d Pr el im

D es ig n\

C

AD

-M

EP

\C on st ru ct s\

H

VA

C \C on tro ls D ra w in gs

\P ha se

.d w g

No. Date Description

G eo rg ia

W or ld C on gr es s

C en te r

C on tro ls

U pg ra de

An dr ew Y ou ng

In te rn at io na l B lv d N

W At la nt a, G

A

822108

824273

08.15.2025

M-625

SEQUENCES OF OPERATION (EXISTING):

DDC CONTROL

SYSTEM POINTS

INPUT/OUTPUT

SUMMARY

MINIMUM

OUTSIDE

AIR

MAXIMUM

OUTSIDE

AIR

RETURN

AIR

RELIEF

AIR

S

AO: Minimum Outside Air Damper Modulation

N.C.

AI: Minimum Outside Air Damper Position (%)

S

AO: Maximum Outside Air Damper Modulation

N.C.

AI: Maximum Outside Air Damper Position (%)

S

AO: Relief Air Damper Modulation

N.C.

AI: Relief Air Damper Position (%)

SUPPLY

AIR

S N.O.AO: Return Air Damper Modulation

HW

HW INHW OUT

S

AO: Heating Hot Water Coil Control Valve Modulation

SF

M T

DI: Low Limit Temperature Switch

CHW

CHW INCHW OUT

S

AO: Chilled Water Coil Control Valve Modulation

T

AI: Supply Air Temperature

H L

S

N.O.

T

T

DI: High Limit Temperature Switch, Return

T

D-1

D-2

D-3

AI: Return Air Damper Position (%)

D-4

AI: Return Air Temperature

DI: High Limit Temperature Switch, Supply

AO: Supply Air Damper Modulation

CS

DI: Current Switch/Supply Fan Status

StarterDO: Supply Fan Start/Stop

AI: Ductwork Static Pressure, Supply

HTCO-2

TT-2

LTC-1

V-2 V-1

PC-1

HTCO-1TT-1

D-5

Supply Air Smoke Detector

DI: Ductwork Static Pressure, High Limit

H L

RNP

RNP

N/A

MECHANICAL

CONTROLS

SUMMARY

AI: Supply Air Damper Position (%)

Scale:

Revisions:

Drawing Title:

Approved By:

Issue Date:

Project No.:

Drawn By:

4360 Chamblee Dunwoody Rd Suite 210

Atlanta, GA 30341 P 770.451.6757 www.tlc-engineers.com

© Copyright 2020 TLC Engineering Solutions, Inc.

TLC Project No.:

/9

/2

:5 5:

A

M L:

\2

4- Jo bs \8

3- G

W C

C P ha se

IG

A an d Pr el im

D es ig n\

C

AD

-M

EP

\C on st ru ct s\

H

VA

C \C on tro ls D ra w in gs

\P ha se

.d w g

No. Date Description

G eo rg ia

W or ld C on gr es s

C en te r

C on tro ls

U pg ra de

An dr ew Y ou ng

In te rn at io na l B lv d N

W At la nt a, G

A

822108

824273

08.15.2025

M-626

SEQUENCES OF OPERATION (EXISTING):

MINIMUM

OUTSIDE

AIR

MAXIMUM

OUTSIDE

AIR

RETURN

AIR

RELIEF

AIR

S

N.C.

N.C.

S

AO: Relief Air Damper Modulation

N.C.

AI: Relief Air Damper Position (%)

Return Air Smoke Detector

S N.O.

SF

M T

DI: Low Limit Temperature Switch

CHW

CHW INCHW OUT

S

AO: Chilled Water Coil Control Valve Modulation

T

AI: Supply Air Temperature

S

N.O.

SUPPLY

AIR

H L

AI: Ductwork Static Pressure, Supply

PC-1

Supply Air Smoke Detector

DI: Ductwork Static Pressure, High Limit

H L

AO: Supply Air Damper Modulation

CS

DI: Current Switch/Supply Fan Status

StarterDO: Supply Fan Start/Stop

AO: Return Air Damper Modulation

AI: Return Air Damper Position (%) S D-2

AO: Minimum Outside Air Damper Modulation

AI: Minimum Outside Air Damper Position (%)

AO: Maximum Outside Air Damper Modulation

AI: Maximum Outside Air Damper Position (%)

D-3

D-4

D-1

SD-1

SD-2

TT-1

D-5LTC-1

DDC CONTROL

SYSTEM POINTS

INPUT/OUTPUT

SUMMARY

V-1

RNP

RNP

N/A

MECHANICAL

CONTROLS

SUMMARY

AI: Supply Air Damper Position (%)

T

AI: Return Air Temperature

Scale:

Revisions:

Drawing Title:

Approved By:

Issue Date:

Project No.:

Drawn By:

4360 Chamblee Dunwoody Rd Suite 210

Atlanta, GA 30341 P 770.451.6757 www.tlc-engineers.com

© Copyright 2020 TLC Engineering Solutions, Inc.

TLC Project No.:

/9

/2

:5 5:

A

M L:

\2

4- Jo bs \8

3- G

W C

C P ha se

IG

A an d Pr el im

D es ig n\

C

AD

-M

EP

\C on st ru ct s\

H

VA

C \C on tro ls D ra w in gs

\P ha se

.d w g

No. Date Description

G eo rg ia

W or ld C on gr es s

C en te r

C on tro ls

U pg ra de

An dr ew Y ou ng

In te rn at io na l B lv d N

W At la nt a, G

A

822108

824273

08.15.2025

M-627

SEQUENCES OF OPERATION (EXISTING):

MINIMUM

OUTSIDE

AIR

MAXIMUM

OUTSIDE

AIR

RETURN

AIR

RELIEF

AIR

S

N.C.

N.C.

S

AO: Relief Air Damper Modulation

N.C.

AI: Relief Air Damper Position (%)

S N.O.

T

T

DI: High Limit Temperature Switch

CHW

CHW INCHW OUT

S

AO: Chilled Water Coil Control Valve Modulation

AO: Minimum Outside Air Damper Modulation

AI: Minimum Outside Air Damper Position (%) D-1

S D-2

AO: Maximum Outside Air Damper Modulation

AI: Maximum Outside Air Damper Position (%)

D-4

AO: Return Air Damper Modulation

AI: Return Air Damper Position (%)

D-3

HTCO-2

DI: Low Limit Temperature Switch

LTC-1

V-1

SF

M

T

AI: Supply Air Temperature

S

N.O.

SUPPLY

AIR

H L

AI: Ductwork Static Pressure, Supply

PC-1

Supply Air Smoke Detector

DI: Ductwork Static Pressure, High Limit

H L

AO: Supply Air Damper Modulation

CS

DI: Current Switch/Supply Fan Status

StarterDO: Supply Fan Start/Stop

SD-1

TT-1

D-5

T

DI: High Limit Temperature Switch, Supply

HTCO-1

DDC CONTROL

SYSTEM POINTS

INPUT/OUTPUT

SUMMARY

RNP

RNP

N/A

MECHANICAL

CONTROLS

SUMMARY

AI: Supply Air Damper Position (%)

T

AI: Return Air Temperature

Scale:

Revisions:

Drawing Title:

Approved By:

Issue Date:

Project No.:

Drawn By:

4360 Chamblee Dunwoody Rd Suite 210

Atlanta, GA 30341 P 770.451.6757 www.tlc-engineers.com

© Copyright 2020 TLC Engineering Solutions, Inc.

TLC Project No.:

/9

/2

:5 5:

A

M L:

\2

4- Jo bs \8

3- G

W C

C P ha se

IG

A an d Pr el im

D es ig n\

C

AD

-M

EP

\C on st ru ct s\

H

VA

C \C on tro ls D ra w in gs

\P ha se

.d w g

No. Date Description

G eo rg ia

W or ld C on gr es s

C en te r

C on tro ls

U pg ra de

An dr ew Y ou ng

In te rn at io na l B lv d N

W At la nt a, G

A

822108

824273

08.15.2025

M-628

SEQUENCES OF OPERATION (EXISTING):

RETURN

AIR

RELIEF

AIR

S

N.C.

N.C.

S

N.C.

S N.O.

HW

HW INHW OUT

S

AO: Heating Hot Water Coil Control Valve Modulation

SFCHW

CHW INCHW OUT

S

AO: Chilled Water Coil Control Valve Modulation

MINIMUM

OUTSIDE

AIR

MAXIMUM

OUTSIDE

AIR

D-1

AO: Minimum Outside Air Damper Modulation

AI: Minimum Outside Air Damper Position (%)

S D-2

AO: Maximum Outside Air Damper Modulation

AI: Maximum Outside Air Damper Position (%)

AO: Return Air Damper Modulation

AI: Return Air Damper Position (%)

D-3 AO: Relief Air Damper Modulation

AI: Relief Air Damper Position (%) D-4 T

DI: High Limit Temperature Switch

HTCO-2

T

AI: Return Air Temperature

TT-2

T

DI: Low Limit Temperature Switch

LTC-1

M

CS

DI: Current Switch/Supply Fan Status

StarterDO: Supply Fan Start/Stop

SUPPLY

AIR

T

AI: Supply Air Temperature

H L

S

N.O. T

DI: High Limit Temperature Switch, Supply

AO: Supply Air Damper Modulation

AI: Ductwork Static Pressure, Supply

PC-1

HTCO-1TT-1

D-5

Supply Air Smoke Detector

DI: Ductwork Static Pressure, High Limit

H L

DDC CONTROL

SYSTEM POINTS

INPUT/OUTPUT

SUMMARY

V-1V-2

AI: Supply Air Damper Position (%)

KC

RNP

N/A

MECHANICAL

CONTROLS

SUMMARY

Scale:

Revisions:

Drawing Title:

Approved By:

Issue Date:

Project No.:

Drawn By:

4360 Chamblee Dunwoody Rd Suite 210

Atlanta, GA 30341 P 770.451.6757 www.tlc-engineers.com

© Copyright 2020 TLC Engineering Solutions, Inc.

TLC Project No.:

/9

/2

:5 5:

A

M L:

\2

4- Jo bs \8

3- G

W C

C P ha se

IG

A an d Pr el im

D es ig n\

C

AD

-M

EP

\C on st ru ct s\

H

VA

C \C on tro ls D ra w in gs

\P ha se

.d w g

No. Date Description

G eo rg ia

W or ld C on gr es s

C en te r

C on tro ls

U pg ra de

An dr ew Y ou ng

In te rn at io na l B lv d N

W At la nt a, G

A

822108

824273

08.15.2025

M-629

SEQUENCES OF OPERATION (EXISTING):

RETURN

AIR

RELIEF

AIR

N.C.

N.C.

N.C.

N.O.

HW

HW INHW OUT

S

AO: Reheat Hot Water Coil Control Valve Modulation

SFCHW

CHW INCHW OUT

S

AO: Chilled Water Coil Control Valve Modulation

MINIMUM

OUTSIDE

AIR

MAXIMUM

OUTSIDE

AIR

S D-1

AO: Minimum Outside Air Damper Modulation

AI: Minimum Outside Air Damper Position (%)

S D-2

AO: Maximum Outside Air Damper Modulation

AI: Maximum Outside Air Damper Position (%)

S

AO: Relief Air Damper Modulation

AI: Relief Air Damper Position (%) D-4

S AO: Return Air Damper Modulation

AI: Return Air Damper Position (%)

D-3

T

DI: Low Limit Temperature Switch

LTC-1

T

DI: High Limit Temperature Switch

HTCO-2

T

AI: Return Air Temperature

TT-2

V-2 V-1

M

CS

DI: Current Switch/Supply Fan Status

StarterDO: Supply Fan Start/Stop

SUPPLY

AIR

T

AI: Supply Air Temperature

H L

S

N.O. T

DI: High Limit Temperature Switch, Supply

AO: Supply Air Damper Modulation

AI: Ductwork Static Pressure, Supply

PC-1

HTCO-1TT-1

D-5

Supply Air Smoke Detector

DI: Ductwork Static Pressure, High Limit

H L

DDC CONTROL

SYSTEM POINTS

INPUT/OUTPUT

SUMMARY

AI: Supply Air Damper Position (%)

KC

RNP

N/A

MECHANICAL

CONTROLS

SUMMARY

Scale:

Revisions:

Drawing Title:

Approved By:

Issue Date:

Project No.:

Drawn By:

4360 Chamblee Dunwoody Rd Suite 210

Atlanta, GA 30341 P 770.451.6757 www.tlc-engineers.com

© Copyright 2020 TLC Engineering Solutions, Inc.

TLC Project No.:

/9

/2

:5 5:

A

M L:

\2

4- Jo bs \8

3- G

W C

C P ha se

IG

A an d Pr el im

D es ig n\

C

AD

-M

EP

\C on st ru ct s\

H

VA

C \C on tro ls D ra w in gs

\P ha se

.d w g

No. Date Description

G eo rg ia

W or ld C on gr es s

C en te r

C on tro ls

U pg ra de

An dr ew Y ou ng

In te rn at io na l B lv d N

W At la nt a, G

A

822108

824273

08.15.2025

M-630

SEQUENCES OF OPERATION (EXISTING):

RETURN

AIR

RELIEF

AIR

N.C.

N.C.

S

N.C.

SUPPLY

AIR

S N.O.

HW

HW INHW OUT

S

AO: Reheat Hot Water Coil Control Valve Modulation

SF

T

CHW

CHW INCHW OUT

S

AO: Chilled Water Coil Control Valve Modulation

MINIMUM

OUTSIDE

AIR

MAXIMUM

OUTSIDE

AIR

S D-1

AO: Minimum Outside Air Damper Modulation

AI: Minimum Outside Air Damper Position (%)

S D-2

AO: Maximum Outside Air Damper Modulation

AI: Maximum Outside Air Damper Position (%)

S

AO: Relief Air Damper Modulation

AI: Relief Air Damper Position (%) D-4

S AO: Return Air Damper Modulation

AI: Return Air Damper Position (%)

D-3

T

DI: High Limit Temperature Switch

HTCO-2

T

AI: Return Air Temperature

TT-2

V-2 V-1

DI: Low Limit Temperature Switch

LTC-1

M

CS

DI: Current Switch/Supply Fan Status

StarterDO: Supply Fan Start/Stop

T

DI: High Limit Temperature Switch, Supply

HTCO-1

T AI: Zone Temperature

DDC CONTROL

SYSTEM POINTS

INPUT/OUTPUT

SUMMARY

DI: Ductwork Static Pressure, High Limit

H L

AI: Outside Airflow Supply Air Smoke Detector

SD-1

T

AI: Supply Air Temperature

TT-1

KC

RNP

N/A

MECHANICAL

CONTROLS

SUMMARY

Scale:

Revisions:

Drawing Title:

Approved By:

Issue Date:

Project No.:

Drawn By:

4360 Chamblee Dunwoody Rd Suite 210

Atlanta, GA 30341 P 770.451.6757 www.tlc-engineers.com

© Copyright 2020 TLC Engineering Solutions, Inc.

TLC Project No.:

/9

/2

:5 5:

A

M L:

\2

4- Jo bs \8

3- G

W C

C P ha se

IG

A an d Pr el im

D es ig n\

C

AD

-M

EP

\C on st ru ct s\

H

VA

C \C on tro ls D ra w in gs

\P ha se

.d w g

No. Date Description

G eo rg ia

W or ld C on gr es s

C en te r

C on tro ls

U pg ra de

An dr ew Y ou ng

In te rn at io na l B lv d N

W At la nt a, G

A

822108

824273

08.15.2025

M-631

SEQUENCES OF OPERATION (EXISTING):

RETURN

AIR SUPPLY AIR

SFCHW

CHW INCHW OUT

S

AO: Chilled Water Coil Control Valve Modulation

HW

HW INHW OUT

S

AO: Reheat Hot Water Coil Control Valve Modulation

T HTCO-1

V-1 V-2

M

CS

DI: Current Switch/Supply Fan Status

StarterDO: Supply Fan Start/Stop

T

DI: High Limit Temperature Switch, Supply

HTCO-1

DI: High Limit Temperature Switch, Supply

DDC CONTROL

SYSTEM POINTS

INPUT/OUTPUT

SUMMARY

T AI: Zone Temperature

KC

RNP

N/A

MECHANICAL

Scale:

Revisions:

Drawing Title:

Approved By:

Issue Date:

Project No.:

Drawn By:

4360 Chamblee Dunwoody Rd Suite 210

Atlanta, GA 30341 P 770.451.6757 www.tlc-engineers.com

© Copyright 2020 TLC Engineering Solutions, Inc.

TLC Project No.:

/9

/2

:5 5:

A

M L:

\2

4- Jo bs \8

3- G

W C

C P ha se

IG

A an d Pr el im

D es ig n\

C

AD

-M

EP

\C on st ru ct s\

H

VA

C \C on tro ls D ra w in gs

\P ha se

.d w g

No. Date Description

G eo rg ia

W or ld C on gr es s

C en te r

C on tro ls

U pg ra de

An dr ew Y ou ng

In te rn at io na l B lv d N

W At la nt a, G

A

822108

824273

08.15.2025

M-632

SEQUENCES OF OPERATION (EXISTING):

RETURN

AIR

RELIEF

AIR

SUPPLY

AIR

HW

HW INHW OUT

S

AO: Heating Hot Water Coil Control Valve Modulation

SFCHW

CHW INCHW OUT

S

AO: Chilled Water Coil Control Valve Modulation

MINIMUM

OUTSIDE

AIR

MAXIMUM

OUTSIDE

AIR

S

AO: Minimum Outside Air Damper Modulation

N.C.

AI: Minimum Outside Air Damper Position (%) D-1

S

AO: Maximum Outside Air Damper Modulation

N.C.

AI: Maximum Outside Air Damper Position (%) D-2

S N.O.AO: Return Air Damper Modulation

D-3

AI: Return Air Damper Position (%)

S

AO: Relief Air Damper Modulation

AI: Relief Air Damper Position (%) D-4

N.C. T

AI: Return Air Temperature

TT-2

Return Air Smoke Detector

SD-2

T

DI: Low Limit Temperature Switch

LTC-1

M

CS

DI: Current Switch/Supply Fan Status

StarterDO: Supply Fan Start/Stop

V-2 V-1

Supply Air Smoke Detector

SD-1

DI: Ductwork Static Pressure, High Limit

H L

DDC CONTROL

SYSTEM POINTS

INPUT/OUTPUT

SUMMARY

T

AI: Supply Air Temperature

AI: Outside Airflow

T AI: Zone Temperature

CO2 AI: Zone Carbon Dioxide

KC

RNP

N/A

MECHANICAL

CONTROLS

SUMMARY

Scale:

Revisions:

Drawing Title:

Approved By:

Issue Date:

Project No.:

Drawn By:

4360 Chamblee Dunwoody Rd Suite 210

Atlanta, GA 30341 P 770.451.6757 www.tlc-engineers.com

© Copyright 2020 TLC Engineering Solutions, Inc.

TLC Project No.:

/9

/2

:5 5:

A

M L:

\2

4- Jo bs \8

3- G

W C

C P ha se

IG

A an d Pr el im

D es ig n\

C

AD

-M

EP

\C on st ru ct s\

H

VA

C \C on tro ls D ra w in gs

\P ha se

.d w g

No. Date Description

G eo rg ia

W or ld C on gr es s

C en te r

C on tro ls

U pg ra de

An dr ew Y ou ng

In te rn at io na l B lv d N

W At la nt a, G

A

822108

824273

08.15.2025

M-633

SEQUENCES OF OPERATION (EXISTING):

RETURN

AIR

SUPPLY

AIR

S

SFCHW

CHW INCHW OUT

S

AO: Chilled Water Coil Control Valve Modulation

Supply Air Smoke Detector

SD-1

M

CS

DI: Current Switch/Supply Fan Status

StarterDO: Supply Fan Start/Stop

T

DI: Low Limit Temperature Switch

LTC-1

Return Air Smoke Detector

SD-2

SN.O. AO: Return Air Damper Modulation

D-3

AI: Return Air Damper Position (%)

OUTSIDE

AIR

S

AO: Outside Air Damper Modulation

N.C.

AI: Outside Air Damper Position (%)D-2

DDC CONTROL

SYSTEM POINTS

INPUT/OUTPUT

SUMMARY

T AI: Zone Temperature CO2 AI: Zone Carbon Dioxide

DI: Ductwork Static Pressure, High Limit

H LT

AI: Supply Air Temperature

AI: Outside Airflow

KC

RNP

N/A

MECHANICAL

CONTROLS

SUMMARY

T

AI: Mixed Air Temperature

AI: Mixed Air Humidity

Scale:

Revisions:

Drawing Title:

Approved By:

Issue Date:

Project No.:

Drawn By:

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No. Date Description

G eo rg ia

W or ld C on gr es s

C en te r

C on tro ls

U pg ra de

An dr ew Y ou ng

In te rn at io na l B lv d N

W At la nt a, G

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822108

824273

08.15.2025

M-634

SEQUENCES OF OPERATION (EXISTING):

RETURN

AIR

RELIEF

AIR

SUPPLY

AIR

HW

HW INHW OUT

S

AO: Heating Hot Water Coil Control Valve Modulation

SFCHW

CHW INCHW OUT

S

AO: Chilled Water Coil Control Valve Modulation

DDC CONTROL

SYSTEM POINTS

INPUT/OUTPUT

SUMMARY

MINIMUM

OUTSIDE

AIR

MAXIMUM

OUTSIDE

AIR

S

N.C.

AO: Minimum Outside Air Damper Modulation

AI: Minimum Outside Air Damper Position (%) D-1

N.C.

S

AO: Maximum Outside Air Damper Modulation

AI: Maximum Outside Air Damper Position (%) D-2

AI: Outside Airflow

N.C.

S

AO: Relief Air Damper Modulation

AI: Relief Air Damper Position (%) D-4

N.O.S AO: Return Air…

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