13-185-035;;"�.
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GENERAL NOTES:
1. SPACE SENSORS LOCATED AS PER PLANS.
2. FIRE ALARM CONTACTS TO BE PROVIDED BY ELECTRICAL CONTRACTOR. WIRE FROM
LOCAL FIRE ALARM CONTACTS TO THE MOTOR FOR FAN SHUTDOWN.
3. CONTROLLERS SHALL HAVE INTEGRATED HOA SWATCHES.
4. SMOKE DETECTOR INSTALLED BY FIRE ALARM CONTRACTOR.
R �•_
2 —POS.
N.C.
RA
PRE — FILTER
BANK
H N L
CHILLED WATER
CONTROL VALVE
MOD.
N.C.
CHWR
N.C.
CHWS E —
VFD NETWORK INTERFACE
ALL POINTS SHALL BE ACCESSIBLE THROUGH THE
DDC CONTROL SYSTEM. PROVIDE THE FOLLOWING
AS HARDWIRED CONTROLS/VFD INTERFACE
DO START —STOP
®0 SPEED CONTROL (X FULL)
DI GENERAL VFD ALARM
VFD
SAF
C
C _ ---
SUPPLY AIR FAN (SAF) AFS -1
TO FIRE ALARM
SYSTEM
TDISCHARGE AIR
TEMPERATURE
ol AHU CONTROL DIAGRAM
SCALE: NTS
CONTROLS SHALL BE TIED TO CANCER CENTER CONTROLS: BASIS OF DESIGN: ADVANCED CONTROLS.
CONSTANT VOLUME AIR HANDLING UNIT:
1. CONNECT AHU CONTROLLER REMOTELY TO THE EXISTING CONTROLS SYSTEM IN THE CANCER CENTER. BASIS OF DESIGN: ADVANCED CONTROLS.
2. START /STOP: WHEN THE AHU IS INDEXED TO OPERATE BY AUTOMATIC OR OPERATOR, THE ASSOCIATED EXHAUST FANS SHALL START. AFTER
AN ADJUSTABLE TIME DELAY, THE AHU SUPPLY FAN SHALL START THROUGH THE VFD AND ALL SAFETIES AND INTERLOCKS SHALL OPERATE
THROUGH THE AUTOMATIC VFD AND BYPASS CONTACTOR.
3. TEMPERATURE CONTROL: DDC CONTROLLER SHALL MODULATE NC CHILLED WATER VALVE TO MAINTAIN THE DISCHARGE AIR TEMPERATURE (ADJUSTABLE).
4. ALARMING: ALARM THE FOLLOWING POINTS: FAN FAILURE, STATIC PRESSURE FAILURE, MINIMUM OUTSIDE AIR FLOW FAILURE, LOW LIMIT SWITCH,
FILTER STATIC PRESSURE LIMIT (DIRTY FILTER), SUPPLY AIR TEMPERATURE HIGH LIMIT ALARM (WITH FAN OPERATING).
5. HEATING COIL: UPON A CALL FOR HEATING, THE CHILLED WATER VALVE SHALL BE CLOSED, THE VFD SHALL MODULE THE FAN TO THE MINIMUM
OUTSIDE AIR CFM SETPOINT AND THE ELECTRIC HEATING COIL SHALL BE ENERGIZED.
6. EMERGENCY SHUTDOWN /SMOKE DETECTION: THE UNIT SHALL SHUT DOWN UPON RECEIVING AN EMERGENCY SHUTDOWN /SMOKE DETECTION SIGNAL
7. AIRFLOW STATION: THE CONTROLLER SHALL MEASURE THE SUPPLY AIRFLOW AND SEND A SIGNAL TO THE UNIT CONTROLLER WHICH MODULATE THE
SUPPLY AIR FAN VFD SPEED TO MAINTAIN THE SUPPLY AIR FLOW SETPONT.
& OA DAMPER: THE OA DAMPER SHALL OPEN DURING OCCUPIED MODE AND CLOSE DURING UNOCCUPIED MODE.
EF
EA /O, I EF /SF r___ > EA /OA
DI
Fan status
STR
D❑
Fan start/stop
DFANS CONTROL DIAGRAM.
Z SCALE: NTS
SEQUENCE OF OPERATION:
EXHAUST FAN
1. RUN CONDITIONS, INTERLOCKED: THE EF SHALL RUN WHENEVER ITS ASSOCIATED AHU
SUPPLY FAN IS RUNNING AND OA DAMPER IS OPEN UNLESS SHUTDOWN ON SAFETIES.
2. FAN STATUS: THE CONTROLLER SHALL MONITOR FAN STATUS. ALARMS SHALL BE PROVIDED
FOR FAN FAILURE (COMMANDED ON BUT THE STATUS IS OFF).
MAKE —UP AIR FAN (MUA)
1. RUN CONDITIONS, INTERLOCKED: THE SF SHALL RUN WHENEVER THE KITCHEN HOOD IS ACTIVATED.
INTERLOCK WITH HOOD CONTROLS AND THE HOOD EXHAUST FAN.
2. FAN STATUS: THE CONTROLLER SHALL MONITOR FAN STATUS. ALARMS SHALL BE PROVIDED
FOR FAN FAILURE (COMMANDED ON BUT THE STATUS IS OFF).
Project #,412469.000
•; ^': 2121 Ponce de l eon Boulevard
Suite 350
Coral Gables, FL 33131
F; phone: 305.569.1692
fax: 305.569.1693
Professional Consulting Engineers
Austin . Dallas - Denver . Houston . KGnscs CiLy • Miami
Nashville . Phoenix . Richmond . W-ish+ngtnn D.C.
EB00007658
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