city of san antonio...construction documents city of san antonio safd fire training academy hvac...

CONSTRUCTION DOCUMENTS

CITY OF SAN ANTONIOSAFD FIRE TRAINING ACADEMY

HVAC & CONTROL SYSTEM UPGRADES

DATE OF ISSUE: 4/25/2018

PROJECT SITE

©

CLASSROOM

BURN

BUI

LDIN

G

VEH

ICLE

FIR

E

BUILDING

HAZMAT

3D FIRE PIT

PAV

ILIO

N

APPARATUSBAY

GYM

LOCKERS

WIN

D-SO

CK

F.D.C

ON

NEC

TION

SHA

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PROP

PROP PRO

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VISITO

RSEE 3/A

1.0EN

TRY WA

LK

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ME1.0

MECHANICAL/ELECTRICALOVERALLSITE PLAN

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MA

CHR

CHS

SP

(NAME)

LA

HWR

HWS

MG

A

LOX

A30

GV

HG

O

RO

F

G

180

DI

SW

D

AW

AV

FU_TOTALFU_WASTEFU_HOTFU_COLD

FIXT_CODE

HD

SD

HT

T

T

T H

T

T

SP

D

P

H

FS

RS

SC

P

T

AHU-12

P

M

M0.0

MECHANICALSYMBOLS &

ABBREVIATIONS

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M1.1

MECHANICALBUILDING AFLOOR PLAN

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M1.2

MECHANICALBUILDING A

ENLARGED FLOOR PLANS

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M1.3

MECHANICALBUILDING A

ENLARGED FLOOR PLANS- ALTERNATE 1

PRESSURE

GAUGE W/

VALVE, TYP.

UNION (UP TO

2-1/2") FLANGE

(3" & OVER)

SEPARABLE

SOCKET

(GAUGE WELL)

BUTTERFLY

VALVE

CHILLED

WATER

S & R

CONTROL PANEL

EXISTING

CONCRETE PAD

FLEXIBLE

CONNECTION

CONTROLS WELL

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M2.1

MECHANICALBUILDING B

FLOOR PLANS

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BAS NETWORK

BACNET

MS/TP

NETWORK

INTERNAL STATIC IP

MS/TP

DDC

DDC

FIREWALL

INSTALL IN

STORAGE A139

EOL

GLOBAL BUILDING

CONTROLLER

DDCDDC

DDCDDC

DDC

DDCDDC

E1

SYMBOLS LEGEND

BAS IP GLOBAL BUILDING CONTROLLER;

BROWSER ACCESS

OWNERS ETHERNET NETWORK

WORKSTATION WITH BROWSER

FIREWALL

OWNER PROVIDED NETWORK FIREWALL

REMOTE ACCESS LAPTOP PROVIDED BY

CONTROLS CONTRACTOR

H

DUCT HUMIDITY SENSOR

DPS

DPT

AFMS

DPS

ELECTRONIC AIR FLOW

MEASURING STATION

DUCT STATIC HIGH LIMIT –

MANUAL RESET

DUCT STATIC PRESSURE

TRANSMITTER

DIRTY FILTER

DIFFERENTIAL PRESSURE

SWITCH – AUTO RESET

MS/TP

BACNET MS/TP NETWORK

CONNECTION

T(F)

ZONE TEMPERATURE

SENSOR

H

ZONE HUMIDITY SENSOR

(NOT ALL SYMBOLS MAY BE USED)

GLOBAL BUILDING

CONTROLLER

BAS NETWORK

SENSOR WIRING – 2 OR 3 CONDUCTOR WITH

OR WITHOUT SHIELD AS REQUIRED

MS/TP – 2 CONDUCTOR W/

SHIELD

E1

C1

S1

ETHERNET - 8

CONDUCTOR

POINT DESCRIPTOR

INPUT/OUTPUT TYPE

(AO,AI,BO,BI)

SIGNAL TYPE

DOUBLE LABEL TYPE

TRIPLE LABEL TYPE

WIRING LEGEND

POINT LABEL LEGEND

POINT DESCRIPTOR

INPUT/OUTPUT TYPE

(AO,AI,BO,BI)

FIELD DEVICEINPUT/OUTPUT NAME

INPUT/OUTPUT TYPE

(AO,AI,BO,BI)

FIELD DEVICEINPUT/OUTPUT NAME

LIST OF ACRONYMS FOR CONTROL DIAGRAMS

AI ANALOG INPUT

AO ANALOG OUTPUT

ASHRAE AMERICAN SOCIETY OF AIR CONDITIONING AND REFRIGERATION ENGINEERS

BACNET BUILDING AUTOMATION AND CONTROL NETWORK (ASHRAE 135-2010)

BI BINARY INPUT

BO BINARY OUTPUT

BO BO TRI-STATE, FLOATING POINT OR 3 WIRE CONTROL

ACT ACTUATOR

AFMS AIR FLOW MEASURING STATION

AVG AVERAGING TEMPERATURE ELEMENT

CSR CURRENT SENSING RELAY

CTX CURRENT TRANSDUCER

D2% DUCT HUMIDITY 2% ACCURACY

DDC DIRECT DIGITAL CONTROL

DX DIRECT EXPANSION

DPS DIFFERENTIAL PRESSURE SWITCH

DPT DIFFERENTIAL PRESSURE TRANSMITTER

E/D ENABLE/DISABLE

HUM HUMIDITY

IP INTERNET PROTOCOL

MOD MODULATING CONTROL (2-10VDC, 0-5VDC R 4-20MA)

MS/TP MASTER SLAVE TOKEN PASSING

RIB RELAY IN A BOX (VERIS INDUSTRIES OR EQUAL)

RLY RELAY

SP SINGLE POINT TEMPERATURE ELEMENT (12" OR 24" AS REQUIRED)

S/S START/STOP

TRISTATE FLOATING POINT OR 3 WIRE CONTROL OF AN ACTUATOR

TS TERMINAL STRIP

VAV VARIABLE AIR VOLUME

VFD OR VSD VARIABLE FREQUENCY OR SPEED DRIVE

VPN VIRTUAL PRIVATE NETWORK

ADJUSTMENT OF SETPOINTS AND TIME DELAYS/CONSTANTS : ALL SETPOINTS, TIME

DELAYS AND TIME CONSTANTS SHALL BE EXPOSED FOR ADJUSTMENT DURING TEST

& BALANCE AND COMMISSIONING REGARDLESS IF THE VALUE IS MARKED (ADJ) IN

THE SEQUENCE.

USER ADJUSTMENT OF SETPOINTS AND TIME CONSTANTS : ALL SETPOINTS AND

TIME CONSTANTS SHALL BE ADJUSTABLE BY THE USER WITH APPROPRIATE LOGIN

CREDENTIALS.

ALARMS : PROGRAM TWO LEVELS OF ALARMS; CRITICAL AND EQUIPMENT.

CRITICAL ALARMS SHALL BE DEFINED AS THOSE ALARMS WHICH IF NOT

RESPONDED TO WILL RESULT IN SUBSTANTIAL DAMAGE TO EQUIPMENT OR IMPACT

PERSONNEL SAFETY. EQUIPMENT ALARMS SHALL BE DEFINED AS THOSE ALARMS

WHICH ARE MORE ROUTINE WHICH CAN BE CLEARED DURING THE NEXT SCHEDULED

MAINTENANCE VISIT. COORDINATE WITH OWNER AS REQUIRED.

FREEZE PROTECTION: ALL AHU TEMPERATURE SENSORS SHALL BE LOW

TEMPERATURE DEVICES IN THE BAS.

OUT-OF-SERVICE FLAGS: THE BAS SHALL BE PROGRAMMED WITH OUT-OF-SERVICE

FLAGS FOR EACH PIECE OF EQUIPMENT SUCH THAT AN OPERATOR OR THE BAS CAN

REMOVE A PIECE OF EQUIPMENT FROM SERVICE. WHEN ANY PIECE OF EQUIPMENT

HAS ITS OUT-OF-SERVICE FLAG SET, THE EQUIPMENT SHALL NOT BE

AUTOMATICALLY ENABLED BY THE BAS. THE BAS SHALL HAVE A SUMMARY PAGE

LISTING ALL EQUIPMENT AND THE ASSOCIATED OUT-OF-SERVICE FLAG STATUS

WITH A CHECKBOX FOR THE USER TO SET THE OUT-OF-SERVICE FLAG.

RECOGNITION OF FAILED EQUIPMENT: THE BAS SHALL AUTOMATICALLY SET AN

OUT OF SERVICE FLAG FOR ANY PIECE OF EQUIPMENT THAT FAILS TO INDICATE RUN

STATUS ON THREE CONSECUTIVE ATTEMPTS TO RUN.

DEAD-BANDS : ALL HEATING AND COOLING SETPOINTS SHALL BE SEPARATED BY A

MINIMUM OF 5F (ADJ)

BAS DESIGN STANDARDS : CONTROL CONTRACTOR TO REFERENCE AND

INCORPORATE OWNER BAS DESIGN STANDARDS AS REQUIRED.

GLOBAL POINTS : OUTSIDE AIR TEMPERATURE AND HUMIDITY SHALL BE MEASURED

AT THE BUILDING AND USED GLOBALLY.

SYSTEM DESIGN: THE BAS SHALL MONITOR ALL POINTS AS INDICATED ON THE

CONTROL DIAGRAMS AND ON THE PLANS. IF ADDITIONAL POINTS ARE NEEDED TO

ACHIEVE A WORKING SYSTEM OR SEQUENCE OF OPERATION, THE CONTROLS

CONTRACTOR SHALL PROVIDE THOSE DEVICES, INSTALLATION, PROGRAMMING, AND

GRAPHICS GENERATION AS REQUIRED AND WITHOUT ADDITIONAL COST TO THE

OWNER.

OWNERS PROGRAM REQUIREMENTS:

OCCUPIED SCHEDULE – COORDINATE WITH FACILITY STAFF

UNOCCUPIED SCHEDULE – COORDINATE WITH FACILITY STAFF

OCCUPIED SETPOINTS:

COOLING SETPOINT – 75°F

HEATING SETPOINT – 70°F

DEHUMIDIFICATION SETPOINT – 60%RH

UNOCCUPIED SETPOINTS:

COOLING SETPOINT – 85°F

HEATING SETPOINT – 63°F

EQUIPMENT LABELS : DESIGNATION OF EQUIPMENT SHALL FOLLOW STANDARDS

INDICATED ON DRAWINGS.

BAS GENERAL REQUIREMENTS

GENERAL – ON ALL GRAPHICS

· DISPLAY TIME, OUTSIDE AIR TEMPERATURE AND OUTSIDE AIR HUMIDITY ON EACH

GRAPHIC.

· PROVIDE NAVIGATION LINKS TO SCHEDULING, TRENDS, & ALARMS.

· PROVIDE NAVIGATION LINK TO THE CAMPUS LEVEL GRAPHIC AND BUILDING LEVEL

GRAPHIC.

· ENSURE STANDARD OPERATION OF BACKWARD AND FORWARD BUTTON ON BROWSER.

· PROVIDE COLOR ANIMATION TO INDICATE RUN STATUS.

BUILDING LEVEL GRAPHIC

· DISPLAY EQUIPMENT ON FLOORPLANS.

· OUTLINE EACH HVAC ZONE WITH BOLD LINES.

· DISPLAY THERMOGRAPH ON FLOORPLAN (I.E. COLOR SHADING TO REPRESENT

TEMPERATE DEVIATION FROM SETPOINT).

EQUIPMENT GRAPHICS

· DISPLAY EQUIPMENT GRAPHIC THAT DEPICTS THE ACTUAL CONFIGURATION OF THE

EQUIPMENT.

· DISPLAY EACH POINT VALUE IN THE APPROPRIATE PLACE ON THE EQUIPMENT.

· PROVIDE OVERRIDE CAPABILITY FOR OUTPUT POINTS FROM EQUIPMENT GRAPHIC.

· PROVIDE ANIMATION TO INDICATE OPERATIONAL POINTS.

· PROVIDE INDICATION OF PROGRAM OUTPUTS SUCH AS, BUT NOT LIMITED TO, COOLING

MODE, DEHUMIDIFICATION, OCCUPIED/UNOCCUPIED, ETC.

· DISPLAY OUT OF SERVICE FLAG STATUS WITH CHECKBOX TO TOGGLE OUT OF SERVICE

FLAG.

SUMMARY PAGE GRAPHICS

· PROVIDE SUMMARY LIST OF ALL AHU/FCU DISCHARGE AIR TEMPERATURES, DISCHARGE AIR

TEMPERATURE SETPOINTS AND OCCUPIED/UNOCCUPIED SCHEDULE STATUS.

· PROVIDE SUMMARY LIST OF ALL EQUIPMENT WITH OUT OF SERVICE FLAGS.

· PROVIDE SUMMARY LIST OF ALL EXHAUST FAN STATUS.

OWNER REQUESTED GRAPHICS

· PROVIDE OWNER REQUESTED GRAPHICS FOR BUILDING PERSONNEL AND OPERATIONS.

· COORDINATE WITH FACILITY STAFF AND ENGINEER AS REQUIRED TO ACHIEVE OWNER

DESIRED GRAPHIC PAGES.

CONTROLS CONTRACTOR SHALL SUBMIT THE FOLLOWING TO THE ENGINEER AND

COMMISSIONING AGENT PRIOR TO SYSTEMS CHECK IN ELECTRONIC FORMAT:

· PROVIDE COMPLETED LOG OF POINT-TO-POINT CHECKOUT OF ALL

HARDWARE POINTS IN SYSTEM (SCANNED PDF).

· PROVIDE A WRITTEN CERTIFICATION THAT THE CONTROL SEQUENCES HAVE

BEEN CHECKED OUT AND ARE OPERATIONAL (SCANNED PDF).

· PROVIDE A PDF COPY OF ALL PROGRAMMING, BY CONTROLLER.

· PROVIDE A PDF COPY OF ALL GRAPHICS INSTALLED IN THE SYSTEM.

· CONTROLS CONTRACTOR TO COMMISSION 100% OF ALL SYSTEMS.

CASCADED GRAPHIC USER

INTERFACE REQUIREMENTS

BAS COMMISSIONING

REQUIREMENTS

ACT

D

X

H

C

ELECTIC HEATING COIL

DIRECT EXPANSION COOLING SYSTEM

FIL

TE

R

MOTORIZED CONTROL

DAMPER

G

H

GAS HEATER

FACILITY

ENGINEERS DESKTOP

COMPUTER

WORKSTATION

(EXISTING)

M3.1

MECHANICALCONTROLDIAGRAMS

UPS

(SEE SPECIFICATIONS)

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M3.2


CONSTANT VOLUME AIR HANDLING UNIT SEQUENCE OF OPERATION:

THE AHU SHALL RUN SUBJECT TO THE OCCUPIED AND UNOCCUPIED SCHEDULES ADJUSTED FOR

OPTIMAL START.

ANYTIME AN AHU IS ACTIVE (OCCUPIED OR UNOCCUPIED) THE BAS SHALL COMMAND THE

CHILLER/BOILER PLANT TO OPERATE AND MAINTAIN THE CHILLED WATER AND HOT WATER SUPPLY

SET POINT.

OPTIMAL START: DURING OPTIMAL START, THE BAS SHALL OPEN THE RETURN AIR DAMPER 100%,

START THE SUPPLY FAN AND MODULATE THE CHILLED WATER VALVE AND HOT WATER REHEAT VALVE

TO MAINTAIN SPACE TEMPERATURE SET POINT AS SPECIFIED. THE BAS SHALL AUTOMATICALLY

ADJUST THE DAILY START TIME OF THE AHU TO ACHIEVE OCCUPIED SET POINTS JUST PRIOR TO THE

SCHEDULED OCCUPIED PERIOD. THE OUTSIDE AIR DAMPER SHALL REMAIN CLOSED DURING THE

OPTIMAL START PERIOD UNLESS THE UNIT IS IN ECONOMIZER MODE.

OCCUPIED MODE:

UNIT START: THE BAS SHALL OPEN THE RETURN AIR DAMPER 100% AND AFTER A 60 SECOND DELAY

START THE SUPPLY FAN, AND MODULATE THE CHILLED WATER VALVE AND HOT WATER REHEAT VALVE

TO MAINTAIN THE ZONE TEMPERATURE SET POINT. AFTER 60 SECONDS OF SUPPLY FAN OPERATION,

THE BAS SHALL OPEN THE OUTSIDE AIR DAMPER 15% AND FOLLOWING A BRIEF STABILIZATION DELAY

THE DEMAND VENTILATION SEQUENCE BELOW SHALL BE FOLLOWED.

DEHUMIDIFICATION MODE:l THE BAS SHALL CONTINUOUSLY MONITOR THE ZONE HUMIDITY LEVEL.

ANYTIME THE HUMIDITY, AS MEASURED AT THE ZONE MOUNTED HUMIDITY SENSOR, EXCEEDS 60%,

THE BAS SHALL MODULATE CHILLED WATER VALVE TO MAINTAIN A LEAVING AIR TEMPERATURE OF 52F

(ADJ.) AND MODULE THE HOT WATER REHEAT VALVE TO MAINTAIN SPACE TEMPERATURE. THE BAS

SHALL TERMINATE THE DEHUMIDIFICATION MODE WHEN THE ZONE HUMIDITY LEVEL REACHES 55%.

DEMAND VENTILATION CONTROL: THE BAS SHALL CONTINUOUSLY MONITOR THE CO2 SENSOR.

DURING OCCUPIED PERIODS AND WHEN ANY MEASURED CO2 LEVEL IS BELOW SET POINT, THE BAS

SHALL RESET THE OUTSIDE AIRFLOW SET POINT LOWER EVERY 10 MINUTES UNTIL THE CO2 SET POINT

IS ACHIEVED OR MINIMUM FLOW IS REACHED (FIELD SET BY TAB CONTRACTOR). DURING OCCUPIED

PERIODS AND WHEN CO2 LEVELS ARE ABOVE SET POINT, THE BAS SHALL IMMEDIATELY RESET THE

OUTSIDE AIR FLOW SET POINT TO THE SCHEDULED VENTILATION AMOUNT. SEE AHU SCHEDULE FOR

OUTSIDE AIRFLOW RATE REQUIREMENTS. INITIAL CO2 SET POINT SHALL BE 900 PPM. MINIMUM

AIRFLOW SHALL BE FIELD SET BY MEASURING BUILDING PRESSURE. MINIMUM FLOW SHALL BE

REACHED WHEN A +0.05 IN.W.G. PRESSURE IS MEASURED BETWEEN THE BUILDING INTERIOR AND

EXTERIOR WHILE ALL AHUS ARE ON, ALL EXHAUST FANS ARE ON, AND ALL BUILDING ENTRANCES ARE

CLOSED.

FREEZE PROTECTION: THE BAS SHALL CLOSE THE OUTSIDE AIR DAMPER, OPEN THE RETURN AIR

DAMPER, CLOSE THE CHILLED WATER VALVE, CLOSE THE HOT WATER VALVE AND STOP THE SUPPLY

FAN WHEN THE ENTERING AIR TEMPERATURE IS <38F (ADJ.).

COOLING MODE: THE BAS SHALL MODULATE THE CHILLED WATER VALVE TO MAINTAIN THE ZONE

TEMPERATURE SET POINT WHEN IN COOLING MODE.

HEATING MODE: THE BAS SHALL MODULATE THE HOT WATER REHEAT VALVE TO MAINTAIN THE ZONE

HEATING SET POINT. THE BAS SHALL CONTINUOUSLY MONITOR THE LEAVING AIR TEMPERATURE.

WHEN THE BAS REGISTERS A DISCHARGE TEMPERATURE ABOVE 95F, THE BAS SHALL MODULATE THE

HOT WATER REHEAT VALVE CLOSED UNTIL THE BAS REGISTERS A DISCHARGE TEMPERATURE OF 90F

(ADJ.).

OUTSIDE AIRFLOW CONTROL:

OUTSIDE AIRFLOW SHALL BE MONITORED AT THE ELECTRONIC OUTSIDE AIRFLOW MEASURING

STATION. DURING OCCUPIED PERIODS, THE BAS SHALL MODULATE THE OUTSIDE AIR DAMPER TO

MAINTAIN OUTSIDE AIRFLOW SET POINT.

ECONOMIZER MODE OPERATION: ECONOMIZER MODE SHALL BE ENGAGED WHEN THE O/A ENTHALPY

IS FAVORABLE (BELOW THE FIXED LIMIT). THE FAN SHALL BE ENABLED AND FOLLOW THE SEQUENCE

AS PREVIOUSLY DESCRIBED, THE O/A DAMPER SHALL BE FULLY OPEN AND THE CONTROLLER SHALL

MODULATE THE O/A AND R/A DAMPERS AND MODULATE THE CHILLED WATER VALVE AND HOT WATER

REHEAT VALVE AS NECESSARY TO MAINTAIN SPACE TEMPERATURE. UPON SENSING AN UNFAVORABLE

O/A ENTHALPY, THE UNIT SHALL RETURN TO NORMAL OPERATION. THE ECONOMIZER SHALL BE

DISENGAGED IF THE OUTSIDE AIR TEMPERATURE FALLS BELOW 40F.

PREHEAT COIL OPERATION:

IF ANY TEMPERATURE SENSOR INDICATES A TEMPERATURE BELOW 45F, THE BAS SHALL

AUTOMATICALLY MODULATE THE HOT WATER PREHEAT VALVE TO MAINTAIN A STEADY AND

CONSISTENT 45F DISCHARGE AT THE DISCHARGE OF THE PREHEAT COIL .

UNIT STOP: ANYTIME THE UNIT IS COMMANDED TO SHUTDOWN THE OUTSIDE AIR DAMPER SHALL

CLOSE, THE RETURN AIR DAMPER SHALL FULLY OPEN, THE CHILLED WATER VALVE SHALL CLOSE, THE

HOT WATER REHEAT VALVE SHALL CLOSE, THE HOT WATER PREHEAT VALVE SHALL CLOSE AND THE

SUPPLY FAN SHALL BE OFF.

OVERRIDE: THE SPACE TEMPERATURE SENSOR SHALL BE PROVIDED WITH AN OVERRIDE

PUSHBUTTON. ONCE THE OVERRIDE PUSHBUTTON IS DEPRESSED, THE BAS SHALL OPERATE THE AHU

TO MAINTAIN OCCUPIED SET POINTS FOR TWO HOURS (ADJ.).

FILTER STATUS: THE BAS SHALL TOTALIZE THE SUPPLY FAN RUN TIME AND GENERATE A DIRTY FILTER

ALARM WHEN THE SUPPLY FAN RUN TIME EXCEEDS 760 HOURS (ADJ.).

ALARMS: FAN FAILURE, LOW TEMPERATURE ALARM, DE-HUMIDIFICATION SEQUENCE ACTIVE, HIGH

HUMIDITY, HIGH SUPPLY AIR TEMPERATURE, DIRTY FILTER.

UNOCCUPIED MODE:

DURING UNOCCUPIED MODE, THE SUPPLY FAN SHALL BE OFF, THE CHILLED WATER VALVE SHALL BE

CLOSED, THE HOT WATER REHEAT VALVE SHALL BE CLOSED, THE OUTSIDE AIR DAMPER SHALL BE

CLOSED AND THE RETURN AIR DAMPER SHALL BE OPEN. THE BAS SHALL CONTINUOUSLY MONITOR

THE SPACE TEMPERATURE AND HUMIDITY. THE BAS SHALL OPERATE THE SUPPLY FAN, CHILLED

WATER VALVE AND HOT WATER REHEAT VALVE TO MAINTAIN THE UNOCCUPIED SPACE TEMPERATURE

AND HUMIDITY SET POINTS AS REQUIRED. THE OUTSIDE AIR DAMPER SHALL REMAIN CLOSED DURING

UNOCCUPIED MODE.

AHU-4

APPLIES TO:.

FILT

ER

RETURN AIR

OUTSIDE AIRSUPPLY AIR –TO SPACE



OPTIMAL START.



SET POINT.







OCCUPIED MODE:




THE BAS SHALL OPEN THE OUTSIDE AIR DAMPER TO 15% AND FOLLOWING A BRIEF STABILIZATION

DELAY THE DEMAND VENTILATION SEQUENCE BELOW SHALL BE FOLLOWED.

DEHUMIDIFICATION MODE: THE BAS SHALL CONTINUOUSLY MONITOR THE ZONE HUMIDITY LEVEL.


THE BAS SHALL MODULATE THE CHILLED WATER VALVE TO MAINTAIN A LEAVING AIR TEMPERATURE OF

52F (ADJ.) AND MODULATE THE HOT WATER REHEAT VALVE TO MAINTAIN SPACE TEMPERATURE. THE

BAS SHALL TERMINATE THE DEHUMIDIFICATION MODE WHEN THE ZONE HUMIDITY LEVEL REACHES

55%.











CLOSED.










(ADJ.).

OUTSIDE AIRFLOW CONTROL: OUTSIDE AIRFLOW SHALL BE MONITORED AT THE ELECTRONIC OUTSIDE

AIRFLOW MEASURING STATION. DURING OCCUPIED PERIODS, THE BAS SHALL MODULATE THE

OUTSIDE AIR DAMPER TO MAINTAIN OUTSIDE AIRFLOW SET POINT.










HOT WATER REHEAT VALVE SHALL CLOSE AND THE SUPPLY FAN SHALL BE OFF.


PUSHBUTTON. ONCE THE PUSHBUTTON IS DEPRESSED, THE BAS SHALL OPERATE THE AHU TO

MAINTAIN OCCUPIED SET POINTS FOR TWO HOURS (ADJ.).





UNOCCUPIED MODE:







UNOCCUPIED MODE.

CH

ILLE

DW

ATER

CO

IL

AHU-1

APPLIES TO:.

CO2

RETURN AIRCO2

AI 4-20ma

AHU-5

.

T

DUCT TEMP

AI SP

ACTRETURN AIR

DAMPERAO 2-10VDC

AFMS

AIR FLOWMEASURING

STATION

AI 4-20ma

ACT

OUTSIDE AIRDAMPER

AO 2-10VDC

T

ENTERING AIRTEMP

AI AVG

CHILLEDWATER VALVEAO 2-10VDC

REH

EAT

HO

TW

ATER

CO

IL

T

HOT WATERREHEAT VALVE

AO 2-10VDC

LEAVING AIRTEMP

AI AVGCONSTANT VOLUME

SUPPLY FANBO S/S TS

CSRSTATUSBI

T

SUPPLY AIRTEMP

AI SP

FILT

ER

RETURN AIR


PREH

EAT

HO

TW

ATER

CO

IL

T

DUCT TEMP

AI SP

ACTRETURN AIR

DAMPERAO 2-10VDC

AFMS

AIR FLOWMEASURING

STATION

AI 4-20ma

ACT

OUTSIDE AIRDAMPER

AO 2-10VDC

T

ENTERING AIRTEMP

AI AVG

HOT WATERPREHEAT VALVE

AO 2-10VDC

CH

ILLE

DW

ATER

CO

IL

T


LEAVING AIRTEMP

AI AVGCONSTANT VOLUME

SUPPLY FANBO S/S TS

CSRSTATUSBI

T

SUPPLY AIRTEMP

AI SP

REH

EAT

HO

TW

ATER

CO

IL


AO 2-10VDC

T

PREHEATTEMP

AI AVG

T(F)

ADJUSTABLE TEMPSENSOR

OVERRIDE

ZONE TEMP. (°F)

ZONE TEMP. ADJ. AI

AI

BI

T(F)


OVERRIDE

ZONE TEMP. (°F)

ZONE TEMP. ADJ. AI

AI

BI

H

HUMIDITY SENSOR

AIZONE HUMIDITY

(2%RH)

H

HUMIDITY SENSOR

AI ZONE HUMIDITY(2%RH)

CO2

RETURN AIRCO2

AI 4-20ma

T

LOW TEMP

BI LVT

T

LOW TEMP

BI LVT

FIR

E T

RA

ININ

G A

CA

DE

MY

HV

AC

UP

GR

AD

ES

CIT

Y O

F S

AN

AN

TO

NIO

300

CA

LL

AG

HA

N R

OA

D, S

AN

AN

TO

NIO

, TX

782

28

SHEET:

DATE:

CHECKED:

PROJECT:

DRAWN:

18-011

4/25/2018

PEP

BLM

©

M3.3


AHU-3

APPLIES TO:.

FILT

ER

RETURN AIR

OUTSIDE AIRSUPPLY AIR –TO ZONE 4

CH

ILLE

DW

ATER

CO

IL

CO2

RETURN AIRCO2

AI 4-20ma

T

DUCT TEMP

AI SP

ACTRETURN AIR

DAMPERAO 2-10VDC

AFMS

AIR FLOWMEASURING

STATION

AI 4-20ma

ACT

OUTSIDE AIRDAMPER

AO 2-10VDC

T

ENTERING AIRTEMP

AI AVG


T

LEAVING AIRTEMP

AI AVG

SUPPLY AIR –TO ZONE 3





HO

TW

ATER

CO

IL T

T

T

T

T

T

SUPPLY AIRTEMP (6 THUS)

AI SP

HOT WATERZONE VALVE

(6 THUS)

BO TRI-STATE

HO

TW

ATER

CO

IL

HO

TW

ATER

CO

IL

HO

TW

ATER

CO

IL

HO

TW

ATER

CO

IL

HO

TW

ATER

CO

IL

CONSTANT VOLUMESUPPLY FAN

BO S/S TS

CSRSTATUSBI

MULTIZONE AIR HANDLING UNIT SEQUENCE OF OPERATION:


OPTIMAL START.



SET POINT.


START THE SUPPLY FAN AND MODULATE THE CHILLED WATER VALVE AND HOT WATER ZONE VALVES





OCCUPIED MODE:


START THE SUPPLY FAN, AND MODULATE THE CHILLED WATER VALVE AND HOT WATER ZONE VALVES

TO MAINTAIN LEAVING AIR TEMPERATURE SET POINT. AFTER 60 SECONDS OF SUPPLY FAN

OPERATION, THE BAS SHALL OPEN THE OUTSIDE AIR DAMPER TO 15% AND FOLLOWING A BRIEF

STABILIZATION DELAY THE DEMAND VENTILATION SEQUENCE BELOW SHALL BE FOLLOWED.




52F (ADJ.) AND MODULATE THE HOT WATER ZONE VALVES TO MAINTAIN SPACE TEMPERATURE. THE

BAS SHALL TERMINATE THE DEHUMIDIFICATION MODE WHEN THE HUMIDITY LEVEL REACHES 55%.











CLOSED.




COOLING MODE: THE BAS SHALL MODULATE THE CHILLED WATER VALVES TO MAINTAIN A STEADY AND

CONSISTENT 55F DISCHARGE AT THE DISCHARGE OF THE AIR HANDLING UNIT WHEN IN COOLING

MODE.

HEATING MODE: THE BAS SHALL MODULATE THE HOT WATER ZONE VALVE TO MAINTAIN THE ZONE




(ADJ.).














HOT WATER ZONE VALVES SHALL CLOSE AND THE SUPPLY FAN SHALL BE OFF.








UNOCCUPIED MODE:


CLOSED, THE HOT WATER ZONE VALVES SHALL BE CLOSED, THE OUTSIDE AIR DAMPER SHALL BE



WATER VALVE AND HOT WATER ZONE VALVE TO MAINTAIN THE UNOCCUPIED SPACE TEMPERATURE


UNOCCUPIED MODE.

H

HUMIDITY SENSOR

ZONE HUMIDITY (2%RH)AI

T(F)


OVERRIDE

ZONE TEMP. (°F)

ZONE TEMP. ADJ. AI

AI

BI

FILT

ER

RETURN AIR




OPTIMAL START.



SET POINT.







OCCUPIED MODE:




THE BAS SHALL OPEN THE OUTSIDE AIR DAMPER TO 15% AND FOLLOWING A BRIEF STABILIZATION

DELAY OUTSIDE AIRFLOW CONTROL SEQUENCE BELOW SHALL BE FOLLOWED.

DEHUMIDIFICATION MODE: THE BAS SHALL CONTINUOUSLY MONITOR THE RETURN AIR HUMIDITY

LEVEL. ANYTIME THE HUMIDITY, AS MEASURED AT THE ZONE MOUNTED HUMIDITY SENSOR, EXCEEDS

60%, THE BAS SHALL MODULATE THE CHILLED WATER VALVE TO MAINTAIN A LEAVING AIR

TEMPERATURE OF 52F (ADJ.) AND MODULATE THE HOT WATER REHEAT VALVE TO MAINTAIN SPACE

TEMPERATURE. THE BAS SHALL TERMINATE THE DEHUMIDIFICATION MODE WHEN THE ZONE HUMIDITY

LEVEL REACHES 55%.










(ADJ.).






















UNOCCUPIED MODE:







UNOCCUPIED MODE.

CH

ILLE

DW

ATER

CO

IL

AHU-2

APPLIES TO:.

T

DUCT TEMP

AI SP

ACTRETURN AIR

DAMPERAO 2-10VDC

AFMS

AIR FLOWMEASURING

STATION

AI 4-20ma

ACT

OUTSIDE AIRDAMPER

AO 2-10VDC

T

ENTERING AIRTEMP

AI AVG


T

LEAVING AIRTEMP

AI AVG


BO S/S TS

CSRSTATUSBI

T

SUPPLY AIRTEMP

AI SP

T(F)


OVERRIDE

ZONE TEMP. (°F)

ZONE TEMP. ADJ. AI

AI

BI

H

HUMIDITY SENSOR

AIZONE HUMIDITY

(2%RH)

REH

EAT

HO

TW

ATER

CO

IL


AO 2-10VDC

T

LOW TEMP

BI LVT

T

LOW TEMP

BI LVT

FIR

E T

RA

ININ

G A

CA

DE

MY

HV

AC

UP

GR

AD

ES

CIT

Y O

F S

AN

AN

TO

NIO

300

CA

LL

AG

HA

N R

OA

D, S

AN

AN

TO

NIO

, TX

782

28

SHEET:

DATE:

CHECKED:

PROJECT:

DRAWN:

18-011

4/25/2018

PEP

BLM

©

M3.4


UNIT VENTILATOR SEQUENCE OF OPERATION:

THE UV SHALL RUN SUBJECT TO THE OCCUPIED AND UNOCCUPIED SCHEDULES ADJUSTED FOR

OPTIMAL START.

ANYTIME A UNIT VENTILATOR IS ACTIVE (OCCUPIED OR UNOCCUPIED) THE BAS SHALL COMMAND THE


SET POINT.

OPTIMAL START: DURING OPTIMAL START, THE BAS SHALL START THE SUPPLY FAN, AND MODULATE

THE CHILLED WATER VALVE AND HOT WATER PREHEAT VALVE TO MAINTAIN SPACE TEMPERATURE SET

POINT AS SPECIFIED. THE BAS SHALL AUTOMATICALLY ADJUST THE DAILY START TIME OF THE UV TO

ACHIEVE OCCUPIED SET POINTS JUST PRIOR TO THE SCHEDULED OCCUPIED PERIOD. THE OUTSIDE

AIR FAN, THE EXHAUST AIR FAN AND THE ENERGY WHEEL SHALL BE OFF DURING THE OPTIMAL START

PERIOD.

OCCUPIED MODE:

UNIT START: THE BAS SHALL START THE SUPPLY FAN AND MODULATE THE CHILLED WATER VALVE

AND HOT WATER PREHEAT VALVE TO MAINTAIN THE ZONE TEMPERATURE SET POINT. AFTER 60

SECONDS OF SUPPLY FAN OPERATION, THE BAS SHALL START THE OUTSIDE AIR FAN, THE EXHAUST

AIR FAN AND THE ENERGY WHEEL.



THE BAS SHALL OPEN THE CHILLED WATER VALVE 100% AND MODULE THE HOT WATER PREHEAT

VALVE TO MAINTAIN SPACE TEMPERATURE. THE BAS SHALL TERMINATE THE DEHUMIDIFICATION MODE

WHEN THE ZONE HUMIDITY LEVEL REACHES 55%.


TEMPERATURE SET POINT DURING COOLING MODE. IF THE CHILLED WATER VALVE IS OPEN 100% AND

THE SPACE TEMPERATURE IS STILL ABOVE SET POINT THE SUPPLY FAN SPEED SHALL BE INCREASED

FROM LOW TO HIGH SETTING.

HEATING MODE: THE BAS SHALL MODULATE THE HOT WATER PREHEAT VALVE TO MAINTAIN THE ZONE




(ADJ.).

UNIT STOP: ANYTIME THE UNIT IS COMMANDED TO SHUTDOWN THE OUTSIDE AIR FAN SHALL BE OFF,

THE EXHAUST AIR FAN SHALL BE OFF, THE ENERGY WHEEL SHALL BE OFF, THE CHILLED WATER VALVE

SHALL CLOSE, THE HOT WATER PREHEAT VALVE SHALL CLOSE AND THE SUPPLY FAN SHALL BE OFF.


PUSHBUTTON. ONCE THE OVERRIDE PUSHBUTTON IS DEPRESSED, THE BAS SHALL OPERATE THE UV





HUMIDITY, HIGH SUPPLY AIR TEMPERATURE, DIRTY FILTER, ENERGY WHEEL FAILURE.

UNOCCUPIED MODE:


CLOSED, THE HOT WATER PREHEAT VALVE SHALL BE CLOSED, THE OUTSIDE AIR FAN SHALL BE OFF,

THE EXHAUST AIR FAN SHALL BE OFF AND THE ENERGY WHEEL SHALL BE OFF. THE BAS SHALL

CONTINUOUSLY MONITOR THE SPACE TEMPERATURE AND HUMIDITY. THE BAS SHALL OPERATE THE

SUPPLY FAN, CHILLED WATER VALVE AND HOT WATER PREHEAT VALVE TO MAINTAIN THE UNOCCUPIED

SPACE TEMPERATURE AND HUMIDITY SET POINTS AS REQUIRED. THE OUTSIDE AIR FAN, THE EXHAUST

AIR FAN, AND THE ENERGY WHEEL SHALL REMAIN OFF DURING UNOCCUPIED MODE.

OUTSIDE AIR

EXHAUST AIR

SUPPLY AIRTO SPACE

RETURN AIRFROM SPACE

EXHAUST AIR FAN

BO S/S TS

CSRSTATUSBI

FILT

ER

FILT

ER

SUPPLY FAN

BO LOW TS

TSHIGHBO

T

ERV SUPPLYTEMP

AI AVG

T

SUPPLY TEMP

AI AVG

CH

ILLE

DW

ATER

CO

IL

CHILLEDWATER VALVEBO TRI-STATE

HO

T PR

EHEA

TW

ATER

CO

IL

HOT WATERPREHEAT VALVEBO TRI-STATE

ENERGY WHEEL

BO S/S TS

CSRSTATUSBI

FILT

ER

RETURN AIR


CONSTANT VOLUME FAN COIL UNIT SEQUENCE OF OPERATION:

THE FCU SHALL RUN SUBJECT TO THE OCCUPIED AND UNOCCUPIED SCHEDULES ADJUSTED FOR

OPTIMAL START.

ANYTIME AN FCU IS ACTIVE (OCCUPIED OR UNOCCUPIED) THE BAS SHALL COMMAND THE


SET POINT.

OPTIMAL START: DURING OPTIMAL START, THE BAS SHALL START THE SUPPLY FAN AND MODULATE

THE CHILLED WATER VALVE AND HOT WATER REHEAT VALVE TO MAINTAIN SPACE TEMPERATURE SET

POINT AS SPECIFIED. THE BAS SHALL AUTOMATICALLY ADJUST THE DAILY START TIME OF THE FCU TO

ACHIEVE OCCUPIED SET POINTS JUST PRIOR TO THE SCHEDULED OCCUPIED PERIOD. THE OUTSIDE

AIR DAMPER SHALL REMAIN CLOSED DURING THE OPTIMAL START PERIOD.

OCCUPIED MODE:

UNIT START: THE BAS SHALL OPEN THE OUTSIDE AIR DAMPER TO THE DESIGN AIRFLOW SET POINT,


TO MAINTAIN THE ZONE TEMPERATURE SET POINT.



THE BAS SHALL OPEN THE CHILLED WATER VALVE 100% AND MODULATE THE HOT WATER REHEAT







TEMPERATURE SET POINT OF THE FAN COIL UNIT WHEN IN COOLING MODE.





(ADJ.).


CLOSE, THE CHILLED WATER VALVE SHALL CLOSE, THE HOT WATER REHEAT VALVE SHALL CLOSE AND

THE SUPPLY FAN SHALL BE OFF.


PUSHBUTTON. ONCE THE PUSHBUTTON IS DEPRESSED, THE BAS SHALL OPERATE THE FCU TO






UNOCCUPIED MODE:



CLOSED. THE BAS SHALL CONTINUOUSLY MONITOR THE SPACE TEMPERATURE AND HUMIDITY. THE

BAS SHALL OPERATE THE SUPPLY FAN, CHILLED WATER VALVE AND HOT WATER REHEAT VALVE TO

MAINTAIN THE UNOCCUPIED SPACE TEMPERATURE AND HUMIDITY SET POINTS AS REQUIRED. THE

OUTSIDE AIR DAMPER SHALL REMAIN CLOSED DURING UNOCCUPIED MODE.

CH

ILLE

DW

ATER

CO

ILFC-1

APPLIES TO:.

ACT

OUTSIDE AIRDAMPER

BO 2-POS

T

ENTERING AIRTEMP

AI AVG

CHILLEDWATER VALVEBO TRI-STATE

REH

EAT

HO

TW

ATER

CO

IL


BO S/S TS

CSRSTATUSBI

T

SUPPLY AIRTEMP

AI SP

T(F)


OVERRIDE

ZONE TEMP. (°F)

ZONE TEMP. ADJ. AI

AI

BI

H

HUMIDITY SENSOR


FC-2

.FC-3

.

HOT WATERREHEAT VALVEBO TRI-STATE

T

LOW TEMP

BI LVT

CSRSTATUSBI

OUTSIDE AIR FAN

BO S/S TS

CSRSTATUSBI

FILT

ER

T

LOW TEMP

BI LVT

UV-1

APPLIES TO:.

T(F)


OVERRIDE

ZONE TEMP. (°F)

ZONE TEMP. ADJ. AI

AI

BI

H

HUMIDITY SENSOR

AIZONE HUMIDITY

(2%RH)

UV-2

.UV-3

.

FIR

E T

RA

ININ

G A

CA

DE

MY

HV

AC

UP

GR

AD

ES

CIT

Y O

F S

AN

AN

TO

NIO

300

CA

LL

AG

HA

N R

OA

D, S

AN

AN

TO

NIO

, TX

782

28

SHEET:

DATE:

CHECKED:

PROJECT:

DRAWN:

18-011

4/25/2018

PEP

BLM

©

M3.5


CONTROL SEQUENCE FOR CHILLED WATER SYSTEM:

1. SYSTEM DESCRIPTION: THE CHILLED WATER SYSTEM CONSISTS OF ONE AIR COOLED SCROLLCHILLER AND TWO CHILLED WATER PUMPS PIPED IN PARALLEL FOR LEAD/STAND BYOPERATION. LEAD/STAND-BY STATUS SHALL BE ROTATED BY THE BAS WEEKLY FOR THEPUMPS.

2. CHILLER START: UPON CHILLER ENABLE, THE BAS SHALL ENABLE THE LEAD PUMP ANDMONITOR STATUS VIA CURRENT SENSORS. ONCE CHILLED WATER FLOW IS PROVEN VIA THEFLOW SWITCH, THE BAS SHALL ENABLE THE CHILLER. THE BAS SHALL MONITOR THE CHILLERVIA BACNET MS/TP AND ALARM IF THE CHILLER FAILS. THE CHILLER'S FACTORY CONTROLSSHALL MAINTAIN THE LEAVING WATER TEMPERATURE SET POINT OF 44F (ADJ.). THE BASSHALL ENABLE THE STAND-BY PUMP IN THE EVENT OF A LEAD PUMP FAILURE. THE BASSHALL ALARM IN THE EVENT OF EQUIPMENT FAILURE.

3. CHILLER STOP: WHEN THE CHILLER IS COMMANDED TO STOP, THE BAS SHALL DISABLE THECHILLER AND DISABLE THE CHILLED WATER PUMP.

4. FREEZE PROTECTION: IN THE EVENT OF AN EVAPORATOR LOW TEMPERATURE ALARM, THEBAS SHALL ENABLE THE CHILLED WATER PUMP.

CH-1

BACnet MS/TP(CONNECT TO BAS)

P-1

BUILDING LOADAHUS WITH

3-WAYCHILLED WATER

CONTROL VALVES

AIR COOLEDCHILLER

S/S

STATUS

ALARM TS

TS

TS

BI

BI

BO

CHILLED WATERPUMP (2 THUS)

BO S/S RIB/CONTACTOR

CSRSTATUSBI

P-2

T

CHW RETURNTEMP

AI IMMER

T

CHW SUPPLYTEMP

AI IMMER

FS

CHW FLOW

BI DPS

HEATING HOT WATER SYSTEM

THE HEATING HOT WATER SYSTEM CONSISTS OF ONE BOILER, WITH ITS OWN DEDICATED CIRCULATION PUMP, AND TWOHEATING HOT WATER PUMPS PIPED IN PARALLEL FOR LEAD/STAND BY OPERATION. LEAD/STAND-BY STATUS SHALL BEROTATED BY THE BAS WEEKLY FOR THE PUMPS.

HEATING HOT WATER BOILER CIRCULATION PUMP IS ENABLED BY THE BOILER. THE BAS DOES NOT MONITOR THECIRCULATION PUMP.

WHEN THE BOILER IS ENABLED, IT SHALL OPERATE ON ITS FACTORY CONTROLS TO ACHIEVE ITS HEATING WATER SETPOINT ADJUSTED BY THE OUTDOOR AIR RESET SCHEDULE.

BOILER START: UPON BOILER START, THE BAS SHALL ENABLE THE LEAD PUMP AND ENABLE THE BOILER AND HOT WATERCIRCULATION PUMP. THE BAS SHALL MONITOR STATUS OF THE HOT WATER PUMP VIA CURRENT SENSORS. THE BASSHALL ENABLE THE STAND-BY PUMP IN THE EVENT OF A LEAD PUMP FAILURE. THE BAS SHALL ALARM IN THE EVENT OFEQUIPMENT FAILURE.

THE HEATING HOT WATER SYSTEM SHALL OPERATE ANY TIME THE OUTSIDE AIR TEMPERATURE IS BELOW 60F UNLESSANY AHU IS IN ZONE HUMIDITIY CONTROL DEHUMIDIFICATION MODE. IF ANY AHU IS IN ZONE HUMIDITY CONTROLDEHUMIDIFICATION MODE THE HEATING HOT WATER SYSTEM SHALL BE ENABLED AND THE HEATING HOT WATERSYSTEM SUPPLY SET POINT SHALL BE 160F.

BOILER STOP: ANYTIME THE BOILER IS COMMENDED TO SHUT DOWN, THE BOILER SHALL BE OFF, THE CIRCULATIONPUMP SHALL BE OFF AND THE HOT WATER PUMP SHALL BE OFF.

BUILDING LOAD(SEE EQUIPMENTSCHEDULES FOR

UNITS WITH 3 – WAYCONTROL VALVES)

P-3

P-4

T

HW RETURNTEMP

AI IMMER

SUPPLY WATERTEMPERATURE

OUTSIDE AIRTEMPERATURE

130F 160F

65F

35F

B-1

S/S

STATUS TS

TS

BI

BO

T

HW SUPPLYTEMP

AI IMMER

B-1

T

HW SUPPLYTEMP

AI IMMER

HOT WATER PUMP(2 THUS)

BO S/S RIB/CONTACTOR

CSRSTATUSBI

OUTSIDE AIR TEMPERATURE AND HUMIDITY MONITORING (COMBINATION SENSOR)

O/A TEMP (°F) SPAI

O/A HUMIDITY (%RH) 2% RHAI

T

H

EXHAUST FAN SEQUENCE OF OPERATION:

OCCUPIED MODE: THE BAS SHALL ENERGIZE THE EXHAUST

FAN.

UNOCCUPIED MODE: THE EXHAUST FAN SHALL BE OFF.

THE BAS SHALL CONTINUOUSLY MONITOR THE EXHAUST FAN

THE BAS SHALL MONITOR STATUS VIA CURRENT SENSING RELAY

AND GENERATE AN EXHAUST FAN FAILURE ALARM ANYTIME THE

EXHAUST FAN IS COMMANDED TO RUN AND IT IS NOT RUNNING.

ADDITIONALLY, THE BAS SHALL GENERATE A FAN MISMATCH

ALARM IF THE FAN IS RUNNING WHEN THE BAS HAS NOT

APPLIES TO:

· EF-1

· EF-2

· EF-3

· EF-4

· EF-7

· EF-8

· EF-9

· EF-11

· EF-12

· EF-13

EXHAUST FAN

BO S/S TS

CSRSTATUSBI

LOCATE ON NORTH SIDE OF BUILDING.

COMMANDED THE FAN TO RUN.

FIR

E T

RA

ININ

G A

CA

DE

MY

HV

AC

UP

GR

AD

ES

CIT

Y O

F S

AN

AN

TO

NIO

300

CA

LL

AG

HA

N R

OA

D, S

AN

AN

TO

NIO

, TX

782

28

SHEET:

DATE:

CHECKED:

PROJECT:

DRAWN:

18-011

4/25/2018

PEP

BLM

©

M3.6


FILT

ER

RETURN AIR


CH

ILLE

DW

ATER

CO

IL

AHU-1

APPLIES TO:.

CO2

RETURN AIRCO2

AI 4-20ma

AHU-5

.

T

DUCT TEMP

AI SP

ACTRETURN AIR

DAMPERAO 2-10VDC

AFMS

AIR FLOWMEASURING

STATION

AI 4-20ma

ACT

OUTSIDE AIRDAMPER

AO 2-10VDC

T

ENTERING AIRTEMP

AI AVG


T

LEAVING AIRTEMP

AI AVGVARIABLE SPEED

SUPPLY FANBO S/S TS

CSRSTATUSBI

T

SUPPLY AIRTEMP

AI SP

TSSPEEDAO

CSRSTATUSBI

SINGLE ZONE VAV AIR HANDLING UNIT SEQUENCE OF OPERATION:


OPTIMAL START.



SET POINT.


START/MODULATE THE SUPPLY FAN AND MODULATE THE CHILLED WATER VALVE AND HOT WATER

REHEAT VALVE TO MAINTAIN SPACE TEMPERATURE SET POINT AS SPECIFIED. THE BAS SHALL

AUTOMATICALLY ADJUST THE DAILY START TIME OF THE AHU TO ACHIEVE OCCUPIED SET POINTS JUST

PRIOR TO THE SCHEDULED OCCUPIED PERIOD. THE OUTSIDE AIR DAMPER SHALL REMAIN CLOSED

DURING THE OPTIMAL START PERIOD UNLESS THE UNIT IS IN ECONOMIZER MODE.

OCCUPIED MODE:


SOFT START THE SUPPLY FAN, AND MODULATE THE CHILLED WATER VALVE AND HOT WATER REHEAT

VALVE TO MAINTAIN LEAVING AIR TEMPERATURE SET POINT. AFTER 60 SECONDS OF SUPPLY FAN

OPERATION, THE BAS SHALL OPEN THE OUTSIDE AIR DAMPER 15% AND FOLLOWING A BRIEF





52F (ADJ.), OPERATE THE SUPPLY FAN AT MAX AIRFLOW SPEED AND MODULE THE HOT WATER REHEAT



SUPPLY AIR RESET: THE SUPPLY AIR TEMPERATURE SET POINT SHALL BE RESET BASED ON OUTSIDE

AIR TEMPERATURE AS MEASURE BY THE BAS. WHEN THE BAS REGISTERS AN OUTSIDE AIR

TEMPERATURE BELOW 57F (ADJ.), THE SUPPLY AIR DISCHARGE TEMPERATURE SHALL BE

PROPORTIONALLY RESET HIGHER UP TO A MAXIMUM LEAVING AIR TEMPERATURE OF 60F (ADJ.).

SPECIFICALLY, THE SUPPLY AIR TEMPERATURE SHALL BE RESET HIGHER 1F FOR EVERY 2F DROP IN

AMBIENT TEMPERATURE BELOW 57F. IN THE EVENT THAT THE SUPPLY AIR TEMPERATURE HAS BEEN

ACTIVELY RESET AND THE ZONE TEMPERATURE SENSOR IS REPORTING A SPACE TEMPERATURE >2F

ABOVE SET POINT, THE SUPPLY AIR TEMPERATURE SHALL BE RESET 1F LOWER IN 10 MINUTE

INTERVALS UNTIL EITHER THE ZONE TEMPERATURE IS WITHIN 1F OF SET POINT OR THE SUPPLY AIR

TEMPERATURE HAS RETURNED TO 55F. THE RESET SCHEDULE, INTERVAL RESET POINTS AND TIME

DELAYS SHALL ALL BE ADJUSTABLE. SUPPLY AIR RESET SHALL BE DISABLED DURING

DEHUMIDIFICATION MODE.

SUPPLY FAN: THE SUPPLY FAN SHALL MODULATE TO MAINTAIN SPACE TEMPERATURE AS FOLLOWS:

COOLING MODE: THE SUPPLY FAN SHALL MODULATE BETWEEN THE UNIT COOLING MINIMUM AIRFLOW

(40%) AND MAXIMUM DESIGN AIRFLOW SETTINGS AS REQUIRED TO MAINTAIN THE SPACE

TEMPERATURE SET POINT.

DEADBAND: THE SUPPLY FAN SHALL OPERATE AT THE UNIT COOLING MINIMUM AIRFLOW SET POINT

(40%).

HEATING MODE: THE SUPPLY FAN SHALL MODULATE BETWEEN THE UNIT HEATING MINIMUM AIRFLOW



DEMAND VENTILATION CONTROL): THE BAS SHALL CONTINUOUSLY MONITOR THE CO2 SENSOR.










CLOSED.




COOLING MODE: THE BAS SHALL MODULATE THE CHILLED WATER VALVE TO MAINTAIN A STEADY AND


MODE. THE BAS SHALL MODULATE THE SUPPLY FAN PER THE SUPPLY FAN OPERATION SEQUENCE

OUTLINED ABOVE TO MAINTAIN SPACE TEMPERATURE SET POINT.





(ADJ.).












PRHEAT COIL OPERATION:

IF ANY TEMPERATURE SENSOR INDICATES A TEMPERATURE BELOW 45F, THE BAS SHALL

AUTOMATICALLY MODULATE THE HOT WATER PREHEAT VALVE TO MAINTAIN A STEADY AND

CONSISTENT 45F DISCHARGE AT THE DISCHARGE OF THE PREHEAT COIL .

DUCT STATIC HIGH LIMIT: THE BAS SHALL MONITOR THE MANUAL RESET DUCT STATIC HIGH LIMIT. IF

THE DUCT STATIC HIGH LIMIT SWITCH MAKES, THE VFD SHALL BE STOPPED AND REQUIRE RESET BY

THE OPERATOR. INITIAL SET POINT SHALL BE 3.5" W.C.



HOT WATER REHEAT VALVE SHALL CLOSE, THE HOT WATER PREHEAT VALVE SHALL CLOSE AND THE

SUPPLY FAN SHALL BE OFF.

FILTER STATUS (AUTO RESET): THE BAS SHALL TOTALIZE THE SUPPLY FAN RUN TIME AND GENERATE

A DIRTY FILTER ALARM WHEN THE SUPPLY FAN RUN TIME EXCEEDS 760 HOURS (ADJ.).


HUMIDITY, HIGH SUPPLY AIR TEMPERATURE, DIRTY FILTER, VFD IN ALARM DUCT STATIC HIGH LIMIT.

UNOCCUPIED MODE:







UNOCCUPIED MODE.

SINGLE ZONE VAV AIR HANDLING UNIT SEQUENCE OF OPERATION:


OPTIMAL START.



SET POINT.


START/MODULATE THE SUPPLY FAN AND MODULATE THE CHILLED WATER VALVE AND HOT WATER

REHEAT VALVE TO MAINTAIN SPACE TEMPERATURE SET POINT AS SPECIFIED. THE BAS SHALL

AUTOMATICALLY ADJUST THE DAILY START TIME OF THE AHU TO ACHIEVE OCCUPIED SET POINTS JUST

PRIOR TO THE SCHEDULED OCCUPIED PERIOD. THE OUTSIDE AIR DAMPER SHALL REMAIN CLOSED

DURING THE OPTIMAL START PERIOD UNLESS THE UNIT IS IN ECONOMIZER MODE.

OCCUPIED MODE:


SOFT START THE SUPPLY FAN, AND MODULATE THE CHILLED WATER VALVE AND HOT WATER REHEAT

VALVE TO MAINTAIN LEAVING AIR TEMPERATURE SET POINT. AFTER 60 SECONDS OF SUPPLY FAN

OPERATION, THE BAS SHALL OPEN THE OUTSIDE AIR DAMPER 15% AND FOLLOWING A BRIEF





52F (ADJ.), OPERATE THE SUPPLY FAN AT MAX DESIGN AIRFLOW SPEED AND MODULATE THE HOT

WATER REHEAT VALVE TO MAINTAIN SPACE TEMPERATURE. THE BAS SHALL TERMINATE THE

DEHUMIDIFICATION MODE WHEN THE ZONE HUMIDITY LEVEL REACHES 55%.

SUPPLY AIR RESET: THE SUPPLY AIR TEMPERATURE SET POINT SHALL BE RESET BASED ON OUTSIDE

AIR TEMPERATURE AS MEASURE BY THE BAS. WHEN THE BAS REGISTERS AN OUTSIDE AIR

TEMPERATURE BELOW 57F (ADJ.), THE SUPPLY AIR DISCHARGE TEMPERATURE SHALL BE

PROPORTIONALLY RESET HIGHER UP TO A MAXIMUM LEAVING AIR TEMPERATURE OF 60F (ADJ.).

SPECIFICALLY, THE SUPPLY AIR TEMPERATURE SHALL BE RESET HIGHER 1F FOR EVERY 2F DROP IN

AMBIENT TEMPERATURE BELOW 57F. IN THE EVENT THAT THE SUPPLY AIR TEMPERATURE HAS BEEN

ACTIVELY RESET AND THE ZONE TEMPERATURE SENSOR IS REPORTING A SPACE TEMPERATURE >2F

ABOVE SET POINT, THE SUPPLY AIR TEMPERATURE SHALL BE RESET 1F LOWER IN 10 MINUTE

INTERVALS UNTIL EITHER THE ZONE TEMPERATURE IS WITHIN 1F OF SET POINT OR THE SUPPLY AIR

TEMPERATURE HAS RETURNED TO 55F. THE RESET SCHEDULE, INTERVAL RESET POINTS AND TIME

DELAYS SHALL ALL BE ADJUSTABLE. SUPPLY AIR RESET SHALL BE DISABLED DURING

DEHUMIDIFICATION MODE.

SUPPLY FAN: THE SUPPLY FAN SHALL MODULATE TO MAINTAIN SPACE TEMPERATURE AS FOLLOWS:

COOLING MODE: THE SUPPLY FAN SHALL MODULATE BETWEEN THE UNIT COOLING MINIMUM AIRFLOW



DEADBAND: THE SUPPLY FAN SHALL OPERATE AT THE UNIT COOLING MINIMUM AIRFLOW SET POINT

(30%).

HEATING MODE: THE SUPPLY FAN SHALL MODULATE BETWEEN THE UNIT HEATING MINIMUM AIRFLOW













CLOSED.

OCCUPANCY SENSOR SETBACK (AHU-1 ONLY): THE BAS SHALL MONITOR THE SPACE OCCUPANCY VIA

THE OCCUPANCY SENSOR AND SETBACK THE SPACE TEMPERATURE SET POINT 5F (ADJ.) WHENEVER

THE SPACE HAS BEEN UNOCCUPIED FOR >30 MIN (ADJ.)




COOLING MODE: THE BAS SHALL MODULATE THE CHILLED WATER VALVE TO MAINTAIN A STEADY AND


MODE. THE BAS SHALL MODULATE THE SUPPLY FAN PER THE SUPPLY FAN OPERATION SEQUENCE

OUTLINED ABOVE TO MAINTAIN SPACE TEMPERATURE SET POINT.





(ADJ.).












DUCT STATIC HIGH LIMIT: THE BAS SHALL MONITOR THE MANUAL RESET DUCT STATIC HIGH LIMIT. IF

THE DUCT STATIC HIGH LIMIT SWITCH MAKES, THE VFD SHALL BE STOPPED AND REQUIRE RESET BY

THE OPERATOR. INITIAL SET POINT SHALL BE 3.5" W.C.





PUSHBUTTON. ONCE THE OVERRIDE PUSHBUTTON IS DEPRESSED, THE BAS SHALL OPERATE THE AHU





HUMIDITY, HIGH SUPPLY AIR TEMPERATURE, DIRTY FILTER, VFD IN ALARM, DUCT STATIC HIGH LIMIT.

UNOCCUPIED MODE:







UNOCCUPIED MODE.

T(F)


OVERRIDE

ZONE TEMP. (°F)

ZONE TEMP. ADJ. AI

AI

BI

AHU-4

APPLIES TO:.

FILT

ER

RETURN AIR

OUTSIDE AIR

PREH

EAT

HO

TW

ATER

CO

IL

CO2

RETURN AIRCO2

AI 4-20ma

T

DUCT TEMP

AI SP

ACTRETURN AIR

DAMPERAO 2-10VDC

AFMS

AIR FLOWMEASURING

STATION

AI 4-20ma

ACT

OUTSIDE AIRDAMPER

AO 2-10VDC

T

ENTERING AIRTEMP

AI AVG

HOT WATERPREHEAT VALVE

AO 2-10VDC

CH

ILLE

DW

ATER

CO

IL T


LEAVING AIRTEMP

AI AVG

REH

EAT

HO

TW

ATER

CO

IL


AO 2-10VDC

T

PREHEATTEMP

AI AVG

T(F)


OVERRIDE

ZONE TEMP. (°F)

ZONE TEMP. ADJ. AI

AI

BI

VARIABLE SPEEDSUPPLY FAN

BO S/S TS

CSRSTATUSBI

TSSPEEDAO

CSRSTATUSBI

H

HUMIDITY SENSOR


H

HUMIDITY SENSOR

AIZONE HUMIDITY

(2%RH)

REH

EAT

HO

TW

ATER

CO

IL


AO 2-10VDC

DPS

DUCT STATICHIGH LIMIT

BI DPS

SUPPLY AIR –TO SPACE

T

SUPPLY AIRTEMP

AI SP

DPS

DUCT STATICHIGH LIMIT

BI DPS

T

LOW TEMP

BI LVT

OCC

OCCUPANCY SENSOR BI

RE: MECHANICAL DRAWINGS FOR

LOCATIONS OF OCCUPANCY SENSORS

(AHU-1 ONLY)

T

LOW TEMP

BI LVT

FIR

E T

RA

ININ

G A

CA

DE

MY

HV

AC

UP

GR

AD

ES

CIT

Y O

F S

AN

AN

TO

NIO

300

CA

LL

AG

HA

N R

OA

D, S

AN

AN

TO

NIO

, TX

782

28

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©

E0.0

ELECTRICALSYMBOLS &

ABBREVIATIONS

CABLE TRAY AND RELATED ITEMS

S

S

UGE

UGT

S

S

S S

S

S

S RELATED EQUIPMENT

S

S

ELECTRICAL RACEWAYS

S

WP

GFCI

POWER SYMBOLS LIGHTING CONTROL SYMBOLS (CONT.) FIRE ALARM SYSTEM SYMBOLS ONE-LINE DIAGRAM SYMBOLS

ELECTRICAL SYMBOLS AND ABBREVIATIONS

ABBREVIATIONS

PANELS AND

LIGHTING CONTROL SYMBOLS

DS

CLOCKS SYSTEM SYMBOLS

INTERCOM SYSTEM SYMBOLS

SECURITY & ACCESSCONTROL SYSTEM SYMBOLS

TELECOM. / TELEPHONE / DATASYSTEM SYMBOLS

LIGHTING SYMBOLS

S

S

S

OS

OS

O0

LV0

CAM

0

I

AMP

ISC

SEC

FACP

FAEX

ANN

CR

DC

MD

ML

AV

V

A

SD D

SD

GB

HD

TS

TS

FS

PS

FS

LC

DB

F

J

C

R

J

D

FF

H

DH

T

SP

SP

I

0

0

0

2

0

3

K0

0

0

WP

P

MT00

M

0

T

0

SC

0

PB

PIA-2,4,6

PJ

CCTV

0

DS

IC

DB

EPB

PB

ES

REX

CAM

WAP

PP

4

I

ACSLMCAAI

FIR

E T

RA

ININ

G A

CA

DE

MY

HV

AC

UP

GR

AD

ES

CIT

Y O

F S

AN

AN

TO

NIO

300

CA

LL

AG

HA

N R

OA

D, S

AN

AN

TO

NIO

, TX

782

28

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©

E1.1

ELECTRICALBUILDING AFLOOR PLAN

”

LMCAAI

FIR

E T

RA

ININ

G A

CA

DE

MY

HV

AC

UP

GR

AD

ES

CIT

Y O

F S

AN

AN

TO

NIO

300

CA

LL

AG

HA

N R

OA

D, S

AN

AN

TO

NIO

, TX

782

28

SHEET:

DATE:CHECKED:

PROJECT:DRAWN:

18-011

4/25/2018

©

E1.2

ELECTRICALBUILDING BFLOOR PLAN

”

LMCAAI

FIR

E T

RA

ININ

G A

CA

DE

MY

HV

AC

UP

GR

AD

ES

CIT

Y O

F S

AN

AN

TO

NIO

300

CA

LL

AG

HA

N R

OA

D, S

AN

AN

TO

NIO

, TX

782

28

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©

E2.1

ENLARGE ELECTRICALBUILDING AFLOOR PLANALTERNATE 1

”

“ ” ”

LMCAAI

FIR

E T

RA

ININ

G A

CA

DE

MY

HV

AC

UP

GR

AD

ES

CIT

Y O

F S

AN

AN

TO

NIO

300

CA

LL

AG

HA

N R

OA

D, S

AN

AN

TO

NIO

, TX

782

28

SHEET:

DATE:CHECKED:

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©

E2.2

ENLARGE ELECTRICALBUILDING A & BFLOOR PLANS

”

“ ” ”

LMCAAI

FIR

E T

RA

ININ

G A

CA

DE

MY

HV

AC

UP

GR

AD

ES

CIT

Y O

F S

AN

AN

TO

NIO

300

CA

LL

AG

HA

N R

OA

D, S

AN

AN

TO

NIO

, TX

782

28

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©

BLACK (COMMON)

BROWN (BLUE CONTROL)

YELLOW (CONTROL-OCC/DAY) PURPLE (NORMALLY CLOSED)

GRAY (COMMON)

ORANGE (NORMALLY OPEN) WHITE/BROWN (YELLOW CONTROL)

BLUE (CONTROL-OCC)

RED (10-30VDC)

LOAD "A"

BLUE

NEUTRAL

HOT

**USE BLACK LEAD FOR 120VAC.USE ORANGE LEAD FOR 277VAC.CAP UNUSED LEAD.

LINE

**H

OT

WH

ITE

BLU

E

SWITCH-PACK

BLACK (COMMON)

BLUE (CONTROL)

RED (15VDC)

MODEL GMDS - LOAD "A"(NORMALLY OPENMOMENTARY SWITCH)


LOAD "B" LOAD "A"

120/277VAC BLACK

RED

BLUE

RED

NEUTRAL

GROUND

GREEN

RED LEADS ARE NON-POLARITY SENSITIVE.

LOAD

120/277 VAC BLACK BLUE

NEUTRAL

GROUND

GREEN

LOAD

BLUE (CONTROL)

BLACK (COMMON)

RED (10-30VDC)

TO ADDITIONAL SENSORSMAXIMUM OF TEN SENSORS

NOTES

1. OSP20-RDH POWER PACK SHOWN. 120/277VAC 20AMP RATING.

BLUE

NEUTRAL

HOT

BLAC

K

WH

ITE

BLU

E

LINE

MODEL GMDS(NORMALLY OPENMOMENTARY SWITCH)

CONNECT SENSOR(S) CONTROLLEAD TO EITHER BLUE ORBLUE/WHITE POWER PACKCONTROL LEAD, BASED ONCONTROL INTENT.

BLACK (DC RETURN)

RED (POWER 24VDC)

BLUE/WHITE (OCCUPANCY MANUAL ON)

BLUE (OCCUPANCY AUTO ON)

YELLOW/ORANGE (LOCAL SWITCH INPUT)

ORANGE (HOLD OFF)

BROWN/WHITE (NORMALLY OPEN) HVAC

GREEN (COMMON) HVAC

BROWN (NORMALLY CLOSED) HVAC

YELLOW (HOLD ON)

BLACK (COMMON)

BROWN (BLUE CONTROL)

YELLOW (CONTROL-OCC/DAY) PURPLE (NORMALLY CLOSED)

GRAY (ISOLATED RELAY COMMON)

ORANGE (NORMALLY OPEN) WHITE/BROWN (YELLOW CONTROL)

BLUE (CONTROL-OCC)

RED (10-30VDC)

LOAD "A"

BLUE

NEUTRAL

HOT


LINE

**H

OT

WH

ITE

BLU

E

SWITCH-PACK

LOAD "B"

BLUE

NEUTRAL

HOT


LINE

**H

OT

WH

ITE

BLU

E

SWITCH-PACK

BLACK (COMMON)

BLUE (CONTROL)

RED (15VDC)

MODEL GMDS - LOAD "B"(NORMALLY OPENMOMENTARY SWITCH)


BLACK (COMMON)

BLUE (CONTROL)

RED (15VDC)

1

2

3

4

5

6

Inte

grat

ion

Con

trol

sA

djus

tabl

e Sk

ylig

hts

Low

End

Hig

h En

d

Ener

gyO

ptio

ns

Stat

usR

eset

0-10

V G

ain

Adj

ustm

ent

Dimmer 3 Dimmer 2 Dimmer 1+ - -+ + -

0-10V Dimming

0-10V Dimming Outputs-+

Dimmer 3 Dimmer 2 Dimmer 1

-++ -

Blu

e - E

M L

ine

InB

lue

- EM

Loa

ds O

ut

CA

UTI

ON

: Bon

ding

bet

wee

n co

ndui

t con

nect

ions

is n

ot a

utom

atic

and

mus

t be

prov

ided

as

part

of t

he in

stal

latio

n.

Bla

ck -

Line

InW

hite

/Bla

ck -

120V

NW

hite

/Ora

nge

- 277

V N

Blu

e - L

oad

InYe

llow

- Lo

ad 1

Out

Red

- Lo

ad 2

Out

Purp

le -

Load

3 O

ut

Energy Options DIP Switch

Demand Response Occupancy Not Used1 2 3 4

Default 10%20%30%40%

OccVac (default)

TimeClock

AlertMode

DemandResponse

A/VMode

+- In

tegr

atio

n C

ontr

ols

+-+-+-

Green

Black

Red

White

Adj

usta

ble

Skyl

ight

s

Sensors

ReceptacleBMS/Out

Switchpack

Qui

ckC

onne

ct C

able

s

Sensors

SliderStation

Wallstations

BLACK - Hot(120/277VAC)

WHT/ORG or WHT/BLKNeutral

BLUE - Relay In(120/277VAC)

OCC-RJ45(Occupancy Coupler)

Model: O

CC

-RJ45

Occupancy Sensor C

oupler

Brown

Black

Red

Blue

*Allows connection to anyGreengate Occupancy/VacancySensor.

LIGHTING LOAD (1) YELLOW

RED

PURPLE

LIGHTING LOAD (2)

LIGHTING LOAD (3)

Dual TechnologyCeiling

Occupancy/Vacancy Sensor(OAC-DT-X000-R)


Model: O

CC

-RJ45

Occupancy Sensor C

oupler

Brown

Black

Red

Blue

Dual TechnologyCeiling

Occupancy/Vacancy Sensor(OAC-DT-X000-R)


Model: O

CC

-RJ45

Occupancy Sensor C

oupler

Brown

Black

Red

Blue

*Allows connection to anyGreengate Occupancy/VacancySensor.

RC3-PL

Zone 1

RC-1TLB-101

Button 1: Toggle Load (a)

*Additional Sensors May BeAdded With AdditionalComponents

Zone 2

RC-1TLB-102

Button 1: Toggle Load (b)Zone 3

RC-1TLB-103

Button 1: Toggle Load (c)

E3.1

ELECTRICALDETAILS

LMCAAI

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