H7.00A

& SYSTEM SUMMARY

CONTROL SCHEMATIC

RF

F

AI

EA

MA

MOD

AO MOD

AO

MOD

AO

M

ASD

SD

BI

RA

OA

BOS

S

SCAO RBI

TYPICAL ASD CONTROL/MONITORING POINTS

AS

D

M

R AOM

SYSTEM

FIRE ALARM

WIRE TO

COM BACnet / MSTP

AV: SPEED (RPM)

AV: POWER (KW)

P

AI

AIR

OUTSIDE

AIR

RETURN

T

AI

SETPOINT

AV

N.C.

N.O.

N.C.

RA

AOM

SYSTEM

ALARM

TO FIRE

SF

M

ASD

F

AI

P

BI

TO FAN CIRCUIT

P

BI

TO FAN CIRCUIT

P

BI

TO FAN CIRCUIT

P

BI

TO FAN CIRCUIT

T

AI

T

AI

RH

AI

F

AI

MANUFACTURER

STATION BY UNIT

FAN INLET AIRFLOW

T

AISETPOINT

AV

C

PH

T

AI

AO

N.O.

COIL

PREHEAT

C

C

T

AI

COIL VALVE

PREHEAT

BANK

FILTERRETURN & OUTSIDE AIR DAMPER BY UNIT MANUFACTURER

RBI

SSBO

COMPRESSOR

DIGITAL SCROLL

COIL

COOLING

DXSP

REFER TO PLANS

SETPOINT

AVAI

AIRSUPPLY

FAN INLET AIRFLOW STATION

RH

AI

SETPOINT

AV

AIR

RELIEF

1AHU-1 CONTROL SCHEMATIC AND SYSTEM SUMMARY

NTS

SEQUENCE OF OPERATION

AS NOTED

POINT SCHEDULE

AIR HANDLING UNIT AHU-1 SYSTEM

HARDWARE POINTS SOFTWARE POINTS

GRAPHIC

SHOWN ONNOTES

BI BO AI AO AV BV SCH TRENDALARM

BACS EMCS DESCRIPTION

STEAM LOAD SHED X (6) BINARY NETWORK INPUTS FROM EMCS

CHILLED WATER LOAD SHED X (4) BINARY NETWORK INPUTS FROM EMCS

OUTSIDE AIR FLOW X X X EITHER MINIMUM OR TOTAL

OUTSIDE AIR DAMPER POSITION COMMAND X X

RELIEF AIR DAMPER POSITION COMMAND X X

OUTSIDE AIR TEMPERATURE X X X AVERAGING SENSOR

OUTSIDE AIR DEWPOINT X X X

MIXED AIR TEMPERATURE X X X X +/- 4 DEG F FROM SETPOINT X AVERAGING SENSOR

MIXED AIR TEMPERATURE SETPOINT X X X

FILTER RACK DIFFERENTIAL PRESSURE X X X X HIGH LIMIT X MAGNEHELIC INDICATING TRANSMITTER

PREHEAT COIL VALVE POSITION COMMAND X X X X F DELTA T ACROSS COIL WITH VALVE COMMANDED CLOSEDo

5 X NORMALLY OPEN

PRE-HEAT COIL DISCHARGE AIR TEMPERATURE X X X AVERAGING SENSOR

COOLING COIL COMPRESSOR START/STOP X X X

COOLING COIL COMPRESSOR STATUS X X X FAILURE X

COOLING COIL DISCHARGE AIR TEMPERATURE X X X AVERAGING SENSOR

SUPPLY FAN LOW SUCTION PRESSURE SWITCH STATUS X X X LOW LIMIT X

SUPPLY FAN START/STOP X X X INTERLOCK WITH FA SYSTEM, IF REQUIRED

SUPPLY FAN SPEED COMMAND X X X

SUPPLY FAN STATUS X X X FAILURE X VIA CONTACT ON DRIVE

SUPPLY FAN POWER (KW) X X X BACnet MSTP NETWORK POINT

SUPPLY FAN SPEED (RPM) X X X BACnet MSTP NETWORK POINT

SUPPLY AIRFLOW X X X INSTALL IN INLET CONE

SUPPLY FAN HIGH DISCHARGE PRESSURE SWITCH STATUS X X X HIGH LIMIT X

AHU DISCHARGE AIR TEMPERATURE X X X X DEVIATION FROM SETPOINT X SINGLE POINT SENSOR

AHU DISCHARGE AIR TEMPERATURE SETPOINT X X X

SUPPLY FAN DOWNSTREAM STATIC PRESSURE X X X X 10% DEVIATION FROM SETPOINT X

SUPPLY FAN DOWNSTREAM STATIC PRESSURE SETPOINT X X X

RETURN DUCT SMOKE DETECTOR STATUS X X

RETURN FAN LOW SUCTION PRESSURE SWITCH STATUS X X X LOW LIMIT X

RETURN FAN AIRFLOW X X X INSTALL IN INLET CONE

RETURN FAN MOTOR START/STOP X X X X INTERLOCK WITH FA SYSTEM

RETURN FAN SPEED COMMAND X X X

RETURN FAN STATUS X X X FAILURE X VIA CONTACT ON DRIVE

RETURN FAN POWER (kW) X X X BACnet MSTP NETWORK POINT

RETURN FAN SPEED (RPM) X X X BACnet MSTP NETWORK POINT

RETURN FAN HIGH DISCHARGE PRESSURE SWITCH STATUS X X X HIGH LIMIT X

RETURN AIR TEMPERATURE X X X

RETURN AIR RELATIVE HUMIDITY X X X

DIVISION 23

STATION BY

OUTSIDE AIRFLOW

SYSTEM DESCRIPTION

RECIRCULATING AIR HANDLING UNIT

SUPPLY AIR FAN

RETURN AIR FAN

GLYCOL PREHEAT COIL

DX COOLING COIL

GENERAL

CONTROL SYSTEM (BACS)

SYSTEM SHALL BE CONTROLLED THROUGH THE BUILDING AUTOMATION AND

ALL SETPOINTS SHALL BE ADJUSTABLE

SEVEN DIFFERENT DAILY SCHEDULES PER WEEK.

THE BACS SHALL BE CAPABLE OF STARTING AND STOPPING THE SYSTEM FOR

SETTING DURING A LOSS OF POWER FOR AT LEAST TEN HOURS.

THE BACS SHALL BE CAPABLE OF RETAINING ITS PROGRAMMING AND TIME

AND SHALL REQUIRE MANUAL RESET.

ALL SAFTIES SHALL BE HARD WIRED INTO THE FAN MOTOR POWER CIRCUIT

SETPOINTS

AHU DISCHARGE AIR TEMPERATURE (DAT): SEE RESET SCHEDULE

MINIMUM OUTSIDE AIRFLOW RATE (BASE BID): 510 CFM

MINIMUM OUTSIDE AIRFLOW RATE (ADD ALT 1): 730 CFM

FILTER DIFFERENTIAL PRESSURE HIGH LIMIT = 1.0" W.C.

SUPPLY DOWNSTREAM STATIC PRESSURE = 1.0" W.C.

SUPPLY FAN DISCHARGE HIGH STATIC PRESSURE LIMIT: 6.0" W.C.

SUPPLY FAN SUCTION LOW STATIC PRESSURE LIMIT: - 6.0" W.C.

RETURN FAN DISCHARGE HIGH STATIC PRESSURE LIMIT: 6.0" W.C.

RETURN FAN SUCTION LOW STATIC PRESSURE LIMIT: - 6.0" W.C.

RETURN AIRFLOW RATE:

AIRFLOW SETPOINT MINUS 300 CFM.

BASE BID: THE RETURN AIRFLOW SETPOINT SHALL BE EQUAL TO THE SUPPLY

AIRFLOW SETPOINT MINUS 730 CFM.

ADD ALT 1: THE RETURN AIRFLOW SETPOINT SHALL BE EQUAL TO THE SUPPLY

MODULATED ECONOMIZER MIXED AIR TEMPERATURE: 5

OWNER)

SYSTEM OCCUPANCY SCHEDULE: 6 AM TO 8 PM, MON-FRI (COORDINATE WITH

START/STOP

OCCUPANCY.

TEMPERATURE AND THE AMOUNT OF TIME PRIOR TO THE SCHEDULED

MINIMUM, BE A FUNCTION OF THE DIFFERENCE BETWEEN SPACE

OPTIMUM START CONTROL ALGORITHM. THE ALGORITHM SHALL AS A

AND OPERATE CONTINUOUSLY BASED ON THE TIME OF DAY SCHEDULE AND AN

OCCUPIED: SUPPLY AIR FAN AND ASSOCIATED RETURN AIR FAN SHALL START

OPERATE FOR A PERIOD OF UP TO 2 HOURS.

SWITCHES INDICATE OCCUPANCY; IN WHICH CASE THE SYSTEM SHALL

SHALL BE INDEXED TO START WHENEVER ANY OF THE MANUAL OVERRIDE

SWITCHES ARE PROVIDED IN LIEU OF OCCUPANCY SENSORS, THE SENSOR

OCCUPANCY IS NOT SENSED FOR A PERIOD OF 30 MINUTES. IF OVERRIDE

SYSTEM SHALL STOP AND INDEX BACK TO UNOCCUPIED MODE WHEN

SYSTEM IS OCCUPIED, AS DETERMINED VIA SPACE OCCUPANCY SENSORS. THE

SHALL BE INDEXED TO START WHENEVER ANY SPACE ASSOCIATED WITH THE

UNOCCUPIED: DURING THE SCHEDULED UNOCCUPIED PERIOD, THE SYSTEM

ADD ALTERNATE 1: SYSTEM SHALL BE ENABLED AT ALL TIMES

SHUTOFF DAMPER CONTROL

SHALL BE CLOSED. THE MIXED AIR DAMPER SHALL BE OPEN.

WHEN THE SYSTEM FANS ARE OFF, THE OUTSIDE AIR AND RELIEF AIR DAMPERS

SAFETIES

THE HIGH FAN DISCHARGE STATIC PRESSURE SWITCH.

OUTSIDE AIR AND RELIEF AIR DAMPERS SHALL CLOSE UPON ACTIVATION OF

HIGH FAN STATIC: THE SUPPLY AND RETURN AIR FANS SHALL SHUT DOWN, THE

THE LOW FAN SUCTION STATIC PRESSURE SWITCH.

OUTSIDE AIR AND RELIEF AIR DAMPERS SHALL CLOSE UPON ACTIVATION OF

LOW FAN STATIC: THE SUPPLY AND RETURN AIR FANS SHALL SHUT DOWN, THE

FAN SPEED CONTROL

MAINTAIN THE CRITICAL ZONE DAMPER POSITION AT 95% OPEN.

DOWNSTREAM STATIC PRESSURE SETPOINT SHALL BE RESET AS NEEDED TO

REQUIRED TO MAINTAIN THE DOWNSTREAM STATIC PRESSURE SETPOINT. THE

THE SUPPLY AIR FAN SHALL MODULATE VIA VARIABLE FREQUENCY DRIVE AS

REQUIRED TO MAINTAIN THE RETURN AIRFLOW SETPOINT.

THE RETURN AIR FAN SHALL MODULATE VIA VARIABLE FREQUENCY DRIVE AS

AIRFLOW SETPOINT MINUS 300 CFM.

BASE BID: THE RETURN AIRFLOW SETPOINT SHALL BE EQUAL TO THE SUPPLY

AIRFLOW SETPOINT MINUS 730 CFM.

ADD ALT 1: THE RETURN AIRFLOW SETPOINT SHALL BE EQUAL TO THE SUPPLY

SUPPLY AIR TEMPERATURE CONTROL

SCHEDULE:

TEMPERATURE SHALL BE ALLOWED TO RESET BASED ON THE FOLLOWING

DISCHARGE AIR TEMPERATURE RESET: THE AHU DISCHARGE AIR

OAT = 75F & --- DAT = 5

DAT = 6---OAT = 55F &

SETPOINT.

PREHEAT COIL CONTROL VALVE SHALL MODULATE AS REQUIRED TO MAINTAIN

SETPOINT, THE SCROLL COMPRESSOR SHALL BE INDEXED TO OFF AND THE

HEATING MODE: WHEN THE AHU DISCHARGE AIR TEMPERATURE FALLS BELOW

PACKAGED CONTROLS.

COMPRESSOR SHALL RUN SUBJECT TO ITS OWN INTERNAL SAFTIES AND

REQUIRED TO MAINTAIN THE DISCHARGE AIR TEMPERATURE SETPOINT. THE

SCROLL COMPRESSOR SHALL MODULATE, VIA PACKAGED CONTROLS, AS

SETPOINT, THE PREHEAT COIL CONTROL VALVE SHALL BE CLOSED AND THE

COOLING MODE: WHEN THE AHU DISCHARGE AIR TEMPEARTURE RISES ABOVE

UNOCCUPIED TEMPERATURE CONTROL

THE ZONE SETPOINT IS SATISFIED.

CONTROL VALVE SHALL MODULATE AND THE SYSTEM SHALL OPERATE UNTIL

SHALL BE CLOSED, THE RETURN AIR DAMPER SHALL BE OPEN, THE PREHEAT

START AND RUN AT 30% AIRFLOW, THE RELIEF AND OUTSIDE AIR DAMPERS

UNOCCUPIED HEATING TEMPERATURE SETPOINT, THE SUPPLY FAN SHALL

IF ANY ZONE TEMPERATURES ASSOCIATED WITH AHU FALL BELOW

THE ZONE SETPOINT IS SATISFIED.

COMPRESSOR SHALL BE INDEXED ON AND THE SYSTEM SHALL OPERATE UNTIL

SHALL BE CLOSED, THE RETURN AIR DAMPER SHALL BE OPEN, THE SCROLL

START AND RUN AT 100% AIRFLOW, THE RELIEF AND OUTSIDE AIR DAMPERS

UNOCCUPIED COOLING TEMPERATURE SETPOINT, THE SUPPLY FAN SHALL

IF ANY ZONE TEMPERATURE ASSOCIATED WITH THE AHU RISE ABOVE THE

MINIMUM VENTILATION CONTROL

DAMPER SHALL BE CLOSED AND THE RETURN AIR DAMPER SHALL BE OPEN.

WHEN THE UNIT IS NOT OPERATING, THE OUTSIDE AIR DAMPER AND RELIEF AIR

SETPOINT.

MODULATE, WITH THE RETURN AIR DAMPER, AS NEEDED TO MAINTAIN

THE OUTSIDE AIR DAMPER SHALL OPEN TO MINIMUM POSITION AND THEN

WHEN THE UNIT IS OPERATING AND ECONOMIZER CONTROL IS NOT INITIATED,

MODULATED ECONOMIZER MODE (MAT CONTROL)

ECONOMIZER MODE (MAT CONTROL) SHALL BE INITIATED.

AND THE OUTSIDE AIR TEMPERATURE IS LESS THAN 55F, MODU

WHEN THE RETURN AIR TEMPERATURE RISES ABOVE THE COOLING SETPOINT,

MIXED AIR TEMPERATURE SETPOINT OF 55î

RETURN AIR AND RELIEF AIR DAMPERS SHALL MODULATE TO MAINTAIN THE

THE MINIMUM OUTSIDE AIR DAMPER SHALL BE FULLY OPEN. THE OUTSIDE AIR,

BE INITIATED.

AIR DAMPER SHALL INDEX TO MAXIMUM POSITION AND HEATING MODE SHALL

OUTSIDE AIR AND RELIEF AIR DAMPERS SHALL INDEX TO MINIMUM, THE RETURN

LOW LIMIT: WHEN THE MIXED AIR TEMPERATURE FALLS BELOW SETPOINT, THE

SHALL BE INITIATED.

RETURN AIR DAMPER SHALL CLOSE AND INTEGRATED ECONOMIZER MODE

OUTSIDE AIR AND RELIEF AIR DAMPERS SHALL INDEX TO FULL OPEN AND THE

HIGH LIMIT: WHEN THE MIXED AIR TEMPERATURE RISES ABOVE SETPOINT, THE

INTEGRATED ECONOMIZER MODE

REQUIRED TO MAINTAIN THE DISCHARGE AIR TEMPERATURE SETPOINT.

CLOSED, THE CHILLED WATER CONTROL VALVE SHALL MODULATE AS

RELIEF AIR DAMPERS SHALL OPEN AND THE RETURN AIR DAMPER SHALL BE

55F, INTEGRATED ECONOMIZER MODE SHALL BE INITIATED. THE OUTSID

TEMPERATURE AND THE OUTDOOR AIR DEWPOINT TEMPERATURE IS BELOW

WHEN THE RETURN AIR TEMPERATURE IS ABOVE THE OUTDOOR AIR

OUTSIDE AIR TEMPERATURE FALLS BELOW 55

DISABLED, THE MODULATED ECONOMIZER MODE SHALL BE INTIATED WHEN THE

LOW LIMIT SHUTOFF: INTEGRATED ECONOMIZER CONTROL SHALL BE

INITIATED

CLOSED, MINIMUM VENTILATION CONTROL AND COOLING MODE SHALL BE

TEMPERATURE. THE OUTSIDE AIR AND RELIEF AIR DAMPERS SHALL INDEX

DISABLED WHEN THE OUTDOOR AIR TEMPERATURE EXCEEDS THE RETURN AIR

HIGH LIMIT SHUTOFF: INTEGRATED ECONOMIZER CONTROL SHALL BE

DEWPOINT

AV

INTEGRAL SPEED DRIVE

KEY PLAN:

COLLEGE OF AGRICULTURE AND LIFE

CORNELL UNIVERSITY

SCIENCES (CALS)

ARCHITECT:

Mitchell Giurgola Architects LLP

630 Ninth Avenue, Suite 711

New York, New York 10036

212 663 4000

PROJECT NO:

PHASE:

DATE:

SCALE:

COPYRIGHT c 2018 MITCHELL GIURGOLA ARCHITECTS LLP

NO.

ISSUE/REVISION:

DATE COMMENTS

PROJECT: DRAWING TITLE:MEP ENGINEER

M/E Engineering, P.C.

300 Trolly Boulevard

Rochester, NY 14606

585 288 5590

607 272 6477

SITE | CIVIL ENGINEER:

T.G. Miller, P.C.

203 North Aurora Street

Ithaca, NY 14850

212 750 9000

STRUCTURAL ENGINEER:

LERA Consulting Structural Engineers

40 Wall Street, 23rd Floor

New York, NY 10005

M/E Engineering, P.C.

300 Trolly Boulevard

Rochester, NY 14606

585 288 5590

LEED CONSULTANT:

716 206 5100

HAZMAT CONSULTANT:

Watts Architecture & Engineering

95 Perry Street, Suite 300

Buffalo, NY 14203

716 823 0006

COST ESTIMATING:

4588 South Park Avenue

Trophy Point, L.L.C.

Blasdell, NY 14219

191900

WITH WORK.

ALL DIMENSIONS & EXISTING CONDITIONS SHALL BE CHECKED & VERIFIED BY CONTRACTOR BEFORE PROCEEDING

SUCF #: 161027

GREENHOUSES

RENOVATE CALS

- PHASE 1

BID DOCUMENTS

4-7-2020

SEAL: