22-117 MECH ADD NO-1_Rev.pdf

W

F

F

F

F

1.0 3.0 4.02.0

A

B

C

TOILET

VESTIBULE

STORAGE

DATA

CENTER

SERVICE

YARD

14ø RA

10ø RA

10ø SA

6ø SA

8ø EA

14ø SA

150RG-23

200SD-12

100EG-19

50SD-17

60x24 RA

ODU-2

CU-1

ODU-1

CRAC-1 CRAC-2

3FC-1

T

EDH-1

10ø SA

12ø RA

H

10ø RA

T

T

8ø SA

TYP-9

-RG-10

RL RS

RL

RS

RL

RS

RS

RL

RS

RL

250 CFM

350 CFM

14x14 RA

14x14 SA

RL

RS

CPLC CONTROLLER

HU-1

PB CONTROL CENTER

WT-1

AIR COMPRESSOR

AIR DRYER 1314

RETURN GRILLES 6" GAP

RETURN DUCT

SERVER

SERVER

HOT AISLE

CONTAINMENT

Engineers Architects

# KEY NOTES:

Revisions: Date

Drawing Title

Approved

Project Title

Location

VA PROJECT NUMBER

Building Number

Drawing Number

Dwg of

VA FORM 08-6231

Office of Construction and Facilities Management

CONSULTANTS: PROJECT MANAGER

SHEET NOTES:

WALL RATING LEGEND

1 HR - FIRE SEPARATION

2 HR - FIRE SEPARATION

SMOKE RESISTIVE HAZARDOUS AREA

Date Checked Drawn

FULLY SPRINKLERED

ACG Project Number

Headquarters:

Apogee Consulting Group, P.A.

1151 Kildaire Farm Road, Suite 120 Cary, North Carolina 27511 www.acg-pa.com 919-858-7420 U.S. Department of Veterans Affairs# © COPYRIGHT Apogee Consulting Group, P.A.

S S S S

/2

/2

:0

:4

P

M C

U s e rs \t b u d a i\ D o c u m e n ts

\F M

P

-1

V A

P re s c o tt -E

H R

M D

C tb u d a i.

rv t

MH101

FIRST FLOOR MECHANICAL PLAN AND

SECTION VIEW OF DUCT ABOVE

SERVER

2 5PRP

EHRM INFRASTRUCTURE UPGRADE

- DATA CENTER

NORTHERN ARIZONA VA HEALTH CARE SYSTEM

500 NORTH HIGHWAY 89

PRESCOTT, ARIZONA 86313 AUGUST 31, 2023

100% BID DOCUMENTS

649-22-70122-117

SPG

1 PROVIDE 1/2" WIRE MESH SCREEN AT OPEN

DUCT INLET/OUTLET.

2 8" DUCT UP THROUGH ROOF TO EF-1.

3 10" UP THROUGH ROOF TO ROOF INTAKE HOOD,

150CFM OFA. INSULATE PER SPECIFICATIONS.

4 FIRE ALARM CONTRACTOR TO COORDINATE

INTEGRATION OF CRAC UNIT CONTROL

(ON/OFF/OVERRIDE) INTO CLEAN AGENT

CONTROL PANEL.

5 THERMOSTATS GO IN RACK. HUMIDSTAT IS ON

THE WALL ONE THERMOSTAT PER RACK.

6 PROVIDE BACKDRAFT DAMPER. INSTALL TO

PREVENT AIR FROM FLOWING THROUGH THE

UNIT IN REVERSE WHEN THE UNIT IS OFF.

7 HUMIDIFIER WATER TREATMENT CABINET.

REFER TO HUMIDIFIER DIAGRAM FOR DETAILS.

8 MOUNT HUMIDIFIER DISPERSION UNIT BOTTOM

AT 12'-0"AFF. REFER TO HUMIDIFIER DIAGRAM

FOR PIPING ARRANGEMENT AND SIZING.

9 HUMIDIFIER CONTROL BOX.

10 INSTALL RETURN DUCT 6" ABOVE HOT AISLE

CONTAINMENT BOX (FROM SERVERS).

11 AIR COMPRESSOR, REFER TO HUMIDIFIER

SCHEDULE AND DIAGRAM FOR INFORMATION.

12 PROVIDE 3/4" UNDERCUT IN DOOR.

13 1" COMPRESSED AIR LINE FROM AIR

COMPRESSOR TO AIR FILTER. 3/4"

COMPRESSED AIR LINE FROM AIR FILTER TO

AIR DRYER.

14 3/4" COMPRESSED AIR LINE FROM AIR FILTER.

1/2" COMPRESSED AIR LINE TO PB CABINET.

15 1/2" COMPRESSED AIR LINE TO HU-1. 1/4"

CONTROL AIR LINE FROM PB CABINET TO HU-1.

Scale: 1/4" = 1'-0"

FIRST FLOOR MECHANICAL PLAN

NORTH

0 4 8 16

N

AREA OF WORK

KEY PLAN - SITE

SCALE: NO SCALE

BLDG

157BLDG

BLDG

BLDG

BLDG

C O

L H

O L M

B E

R G

R O

A D

A. PROVIDE NEW CONNECTION TO THIS BUILDING

FROM MAIN CAMPUS ECC FOR CONTROLS

INTEGRATION. PROVIDE ALL NECESSARY

PANELS, CONDUIT, WIRE, FIBER,

ACCESSORIES, PROGRAMMING AND TRAINING

NECESSARY FOR A SEAMLESS CONNECTION TO

MAIN CAMPUS SYSTEM.

B. HOT AISLE CONTAINMENT (HAC) IS LOCATED

BETWEEN THE ROWS OF SERVERS AND IS A

PRODUCT PROVIDED BY THE SERVER

MANUFACTURER. HAC IS OPEN ENDED AT THE

TOP TO ALLOW SERVER HEAT TO BE DRAWN

INTO THE RETURN SYSTEM.

Scale: No Scale

SECTION VIEW OF DUCT ABOVE SERVER

N

AREA OF WORK

KEY PLAN - SITE

SCALE: NO SCALE

BLDG

157BLDG

BLDG

BLDG

BLDG

C O

L H

O L M

B E

R G

R O

A D

1 ADDENDUM #1 4/29/2024

Engineers Architects

Revisions: Date

Drawing Title

Approved

Project Title

Location

VA PROJECT NUMBER

Building Number

Drawing Number

Dwg of

VA FORM 08-6231

Office of Construction and Facilities Management

CONSULTANTS: PROJECT MANAGER

Date Checked Drawn

FULLY SPRINKLERED

ACG Project Number

Headquarters:

Apogee Consulting Group, P.A.

1151 Kildaire Farm Road, Suite 120 Cary, North Carolina 27511 www.acg-pa.com 919-858-7420 U.S. Department of Veterans Affairs# © COPYRIGHT Apogee Consulting Group, P.A.

/2

/2

:0

:5

P

M C

U s e rs \t b u d a i\ D o c u m e n ts

\F M

P

-1

V A

P re s c o tt -E

H R

M D

C tb u d a i.

rv t

M-601

MECHANICAL SCHEDULES

5 5PRP

EHRM INFRASTRUCTURE UPGRADE

- DATA CENTER

NORTHERN ARIZONA VA HEALTH CARE SYSTEM

500 NORTH HIGHWAY 89

PRESCOTT, ARIZONA 86313 AUGUST 31, 2023

100% BID DOCUMENTS

649-22-70122-117

SPG

AIR DEVICE SCHEDULE (RETURN)

MARK TYPE

AIR FLOW

MAX. APD MOUNTING

PANEL/FRAME

SIZE NECK SIZE MAX NC DAMPER FINISH MATERIAL REMARKSMIN. MAX.

RG-10 EGG CRATE 950 1900 0.06 in-wg CEILING 24x24 22x22 24 Yes WHITE STEEL

RG-23 EGG CRATE 170 250 0.09 in-wg CEILING 24x24 10"Ø 14 No WHITE STEEL

AIR DEVICE SCHEDULE (SUPPLY)

DIFFUSER

MARK TYPE

AIR FLOW

MAX. APD MOUNTING

PANEL/FRAME

SIZE NECK SIZE MAX NC DAMPER FINISH MATERIAL REMARKSMIN. MAX.

SD-12 LOUVERED FACE 101 200 0.08 in-wg CEILING 24x24 8"Ø 20 No WHITE STEEL

SD-17 LOUVERED FACE 40 100 0.08 in-wg CEILING 12x12 6"Ø 19 No WHITE STEEL

EF-1 ROOF TOILET TOILET... 100 [ 47 ] 0.35 [ 88 ] CENTRIFUGAL BACKWAR... II UPBLAST 10 [ 250 ] 75% BELT 1323 0.048 0.167 [ ] 1 120 1750 CONSTANT ---

CFM [L/s] IN [Pa] IN [mm] BHP HP [kW]

TYPE WHEEL CLASS

ARRANGEMENT, ROTATION,

AND DISCHARGE

DIAMETER MIN %

EFF

DRIVE

FAN MAX

RPM

NOMINAL POWER

PHASE VOLT RPM

SPEED

CONTROL

MARK LOCATION

AREA AND/OR

BLDG

SERVED

SYSTEM

AND/OR

SERVICE

AIR FLOW ESP

FAN MOTOR ELECTRICAL

CONTROL

SEQUENCE

REMARKS

FAN SCHEDULE

CRAC-2 DATA CENTER 15,750 26.0 80 149 200 208 3 ODU-2 MECHANICAL YARD SCROLL 21.2 25 208 3 1,2,3,4,5,6,7,8

CRAC-1 DATA CENTER 15,750 26.0 80 149 200 208 3 ODU-1 MECHANICAL YARD SCROLL 21.2 25 208 3 1,2,3,4,5,6,7,8

MARK NO. LOCATION AIRFLOW (CFM) NORMAL CAPACITY (TONS) ENTERING AIR TEMPERATURE (DEGREES F) MCA MOCP VOLTS PHASE MARK NO. LOCATION COMPRESSOR TYPE MCA MOCP VOLTS PHASE

INDOOR UNIT ELECTRICAL OUTDOOR UNIT ELECTRICAL

REMARKS

COMPUTER ROOM AIR CONDITIONING

FC-1 STORAGE SUPPORT DX 600 [ 280 ] 150 [ 71 ] 0.7 [ 180 ] 18 [ 61 ] 14.8 [ 4 ] 16.7 83 [ 28 ] 63 [ 17 ] [ 95 ] [ 35 ] [ 20 ] [ 6 ] 65 [ 18 ] 85 [ 29 ] [ 17 ] [ -8 ] 1.6 1 208/230 16.5 20 208/230 5 3 208 1

CFM [L/s] CFM [L/s] IN [Pa] MBH [kW] MBH [kW] °F [°C] °F [°C] °F [°C] MBH KW °F [°C] °F [°C] °F [°C] Kw PHASE VOLT REMARKS

Db Wb

MIN TOTAL

CAPACITY

MIN SENS

CAPACITY MIN

SEER

EAT OSA DESIGN

TEMP COMP Kw

MIN. HEAT

CAPACITY

EAT DB LAT Db

OSA DESIGN

TEMP INDOOR

UNIT MCA

INDOOR

UNIT

PHASE

INDOOR

UNIT VOLT

OUTDOOR

UNIT MCA

OUTDOOR

UNIT

PHASE

OUTDOOR

UNIT VOLT

MARK LOCATION

AREA AND/OR

BLDG SERVED

TYPE

TOTAL SUPPLY AIR

FLOW

MIN. OUTSIDE AIR

FLOW

EXT STATIC

PRESSURE

COOLING CAPACITY HEATING CAPACITY

AIR FILTER

MARK NO

SUPPLEMENTAL HEAT REMARKS

SPLIT SYSTEM HEAT PUMP SCHEDULE

NOTE

1. ALL SELECTIONS ARE BASED ON AN ALTITUDE OF 5050 FEET ASL.

2. PROVIDE BACKDRAFT DAMPER.

GI-1 ROOF FC-1 INTAKE DUCTED 12.5 [ 317.5 ] 150 [ 71 ] 0.003 [ 1 ] BACKDRAFT ----

IN [mm] CFM [L/s] IN [Pa]

MARK LOCATION

SYSTEM

AND/OR...

TYPE APPLICATION

THROAT SIZE AIR FLOW APD

DAMPER TYPE REMARKS

INTAKE/EXHAUST HOOD SCHEDULE

REMARKS:

1. IN ROW DUCT HEATER, REFER TO EDH-1 SCHEDULE.

NOTES:

1. BASIS OF DESIGN IS STULTZ CFD, SCS.

2. PROVIDE EMERGENCY POWER OFF SWITCH.

3. PROVIDE DISCONNECT.

4. R-410A.

5. PROVIDE HOT GAS REHEAT.

6. DOWNFLOW CONFIGURATION.

7. PROVIDE DOWNFLOW UNIT STAND.

AIR DEVICE SCHEDULE (EXHAUST)

DIFFUSER

MARK LOCATION TYPE

AIRFLOW

MAX. APD MOUNTING

PANEL/FRAME

SIZE NECK SIZE MAX NC DAMPER FINISH MATERIAL REMARKSMIN. MAX.

EG-19 EGG CRATE 110 170 0.09 in-wg CEILING 12x12 8"Ø 13 No WHITE STEEL

EDH-1 STORAGE FC-1 OPEN COIL, HELICAL RESISTANCE ELEMENTS 600 [ 280 ] 17 [ -8 ] 0.15 [ 38 ] 14 [ 350 ] 10 [ 250 ] 17065 [ 5000 ] 3 208 13.879 SCR ----

CFM [L/s] °F [°C] IN WG [Pa] IN [mm] IN [mm] BTUH [W] PHASE VOLT AMPS

LENGTH WIDTHMARK LOCATION

SYSTEM

AND/OR

SERVICE

TYPE

AIR FLOW EAT APD

DUCT SIZE

CAPACITY POWER CONTROL

TYPE

REMARKS

ELECTRIC DUCT MOUNTED HEATER SCHEDULE

NOTES:

1. BASIS OF DESIGN IS SMARTFOG ES100-2.

2. PROVIDE WALL MOUNTED UL LISTED SMARTFOG CPLC1 CONTROL BOX

WITH BACNet MS/TP BMS CONTROLLER CARD COMMUNICATION TO

CAMPUS CONTROL SYSTEM. COORDINATE WITH CAMPUS

CONTROLS CONTRACTOR TO PROVIDE A FULLY SEAMLESS AND

FUNCTIONAL INTEGRATION. PROVIDE 120/1 POWER, 2.5A

DEDICATED CIRCUIT.

3. PROVIDE NEW AIR COMPRESSOR, OIL LESS, ENCLOSED, SCROLL, 5.0 CFM

@ 110 PSI, 208/3/60, 3 HP, 9.0A (FLA). BASIS OF DESIGN - POWEREX SES0308.

4. PROVIDE ONE (1) HUMIDISTAT. S2E SENSOR, "E" SERIES. REFER TO FLOOR PLANS.

5. PROVIDE CONDUCTIVITY PROBE.

6. PROVIDE WATER TREATMENT SYSTEM, WT-1. (CONTRACTOR TO

TEST WATER QUALITY AND DETERMINE APPROPRIATE WATER

TREATMENT). BASIS OF DESIGN - ZEROTDS ZTDS300 "A" SERIES.

PROVIDE 120V/1 POWER, 4.0A DEDICATED CIRCUIT.

7. PROVIDE SHUT-OFF VALVE AND STRAINER PRIOR TO CONNECTION

FROM WATER TREATMENT SUPPLY PIPING.

8. PROVIDE AIR FILTER, AF-900.

9. ACCESSORIES FOR AIR COMPRESSOR:

PROVIDE AIR DRYER (POWEREX ABAC COOL25) - 120/1/60 (1/4 HP), INTAKE AIR FILTER, NYLON TUBING KIT.

1 ADDENDUM #1 4/29/2024

HU-1 DATA CENTER 3 1,2,3,4,5,6,7,8,9

MARK NO. LOCATION

CAPACITY

GAL/HR

NOTES

HUMIDIFIER SCHEDULE

SUPPORT

STRAPS OR

WIRES, TYP.

DRAIN PAN

NOTES:

1. DRAIN PAN TO BE GALVANIZED SHEETMETAL WITH WATER-TIGHT JOINTS.

2. LOCATE 4 TO 8 INCHES (10 TO 20 CM) BELOW PIPE OR EQUIPMENT THAT IS SUBJECT TO LEAK.

3. SUPPORT PAN WITH 1" (2.5 CM) WIDE STRAPS OR WIRES ATTACHED TO STRUCTURE.

4. WIDTH AND LENGTH SHALL BE A MINIMUM OF 2 INCHES (5 CM) LONGER THAN THE PIPE OR EQUIPMENT SIZE.

5. WATER DETECTOR SHALL ALARM TO THE BUILDING AUTOMATION SYSTEM (BAS). BAS SHALL SHOW ROOM LOCATION

WITH ALARM.

VARIESVARIES

WATER DETECTOR CONTROLLER

WATER DETECTOR SENSOR

MAIN SUPPLY

DUCT

PROVIDE VOLUME

DAMPER

PROVIDE VOLUME DAMPER

ON BRANCHES (TYP)

1/4 W OR

4" MIN.

SUPPLY REGISTER OR

BRANCH DUCT

MAIN

SUPPLY

DUCT

SEE FLOOR PLAN FOR

SPLIT DIMENSION

TURNING VANES

AIR FLOW

AIR FLOW

A

IR

F L O

W

AIR SPLIT DUCT TAKE-

OFF PLAN VIEW

BRANCH DUCT TAKE-OFF

PLAN VIEW

AIR FLOW

A

IR

F

LO

W

W

MAIN SUPPLY

DUCT

CONICAL TAP

TERMINAL UNIT DUCT TAKE-

OFF PLAN VIEW

AIR FLOW

A

IR

F

LO

W

W

NOTE:

TABULATED DATA FROM SMACNA ALLOWS FOR DUCT REINFORCING AND INSULATION, BUT NOT EXTERNAL LOAD.

ANY ADDITIONAL COMPONENTS SUPPORTED FROM DUCT HANGER ARE TO BE REVIEWED AND APPROVED BY STRUCTURAL

ENGINEER

MAXIMUM

HALF OF DUCT

PERIMETER

PAIR AT 10 FT SPACING

P/2 = 30"

RECTANGULAR DUCT HANGERS MINIMUM SIZE

1" MIN

SCREWS

SCREWS MAY BE

OMITTED IF HANGER

LOOPS

60" MAX

STRAP HANGERS

HANGER

STRAPS UNLESS FOOT OF

STRAP IS PLACED

UNDER A BOTTOM

REINFORCEMENT

TRAPEZE HANGERS

STRAP OR ANGLE

ROD

NUTS

ALTERNATE LOCATION

(VERIFY UPPER TRAPEZE

LOAD CAPACITY)

ANGLES

ROD

P/2 = 72"

P/2 = 96"

P/2 = 120"

P/2 = 168"

P/2 = 192"

P/2 = 193" UP

STRAP WIRE/ROD

1" x 22 GA.

1" x 18 GA.

1" x 16 GA.

1-1/2" x 16 GA.

1-1/2" x 16 GA.

NOT GIVEN

10 GA. (.135")

3/8"

3/8"

1/2"

1/2"

1/2"

PAIR AT 8 FT SPACING

STRAP WIRE/ROD

1" x 22 GA.

1" x 18 GA.

1" x 16 GA.

1-1/2" x 16 GA.

1-1/2" x 16 GA.

10 GA. (.135")

3/8"

3/8"

1/2"

1/2"

1/4"

PAIR AT 5 FT SPACING

STRAP WIRE/ROD

1" x 22 GA.

12 GA. (.106")

3/8"

3/8"

PAIR AT 4 FT SPACING

STRAP WIRE/ROD

1" x 22 GA. 10 GA. (.135")

1" x 20 GA.

1" x 18 GA.

1" x 16 GA.

1" x 16 GA.

1" x 20 GA.

1" x 22 GA.

3/8"

3/8"

1/4"

3/8"

3/8"

1/4"

1/4"

1/4"

1" x 22 GA.

1" x 18 GA.

1" x 16 GA.

1" x 20 GA.

1" x 22 GA.

SPECIAL ANALYSIS REQUIRED

H

BMS

CRAC-1

T

BMS

BMS

BMS

CRAC-2

HUMIDISTATS ON WALL

HUMIDIFIER

CONTROLLER

VIGILENT

CONTROL

OPTIMIZING

SYSTEM

VIGILENT

CONTROL

OPTIMIZING

SYSTEM

IN RACKS, (TYP)

VIGILENT

CONTROL

OPTIMIZING

SYSTEM

VIGILENT

CONTROL

OPTIMIZING

SYSTEM

CPLC

CONTROLLER

3 WIRE, 18 GA.

PB

CONTROL

CENTER

1/2" WATER LINE

4-10 WIRE, 18 GA. SHIELDED

(DEPENDS ON QTY. OF ZONES

RH

SENSOR

WATER

SOURCE

WATER

FILTER

1/2" WATER LINE1/2" WATER LINE

AIR FILTER

1/2" WATER LINE

1/4" AIR CONTROL LINE

1/2" COMPRESSED

AIR LINE

HU-1

NOTES: REFER TO MANUFACTURER

INSTALLATION REQUIREMENTS FOR DETAIL.

1/2" COMPRESSED

AIR LINE

AIR

COMPRESSOR

1" COMPRESSED

AIR LINE

1/4" DRAIN 1/2" DRAIN 1/2" DRAIN

3/4"

COMPRESSED

AIR LINE

AIR

DRYER

3/4" CONDENSATE

Engineers Architects

Revisions: Date

Drawing Title

Approved

Project Title

Location

VA PROJECT NUMBER

Building Number

Drawing Number

Dwg of

VA FORM 08-6231

Office of Construction and Facilities Management

CONSULTANTS: PROJECT MANAGER

Date Checked Drawn

FULLY SPRINKLERED

ACG Project Number

Headquarters:

Apogee Consulting Group, P.A.

1151 Kildaire Farm Road, Suite 120 Cary, North Carolina 27511 www.acg-pa.com 919-858-7420 U.S. Department of Veterans Affairs# © COPYRIGHT Apogee Consulting Group, P.A.

/2

/2

:0

:5

P

M C

U s e rs \t b u d a i\ D o c u m e n ts

\F M

P

-1

V A

P re s c o tt -E

H R

M D

C tb u d a i.

rv t

M-501

MECHANICAL DETAILS

4 5PRP

EHRM INFRASTRUCTURE UPGRADE

- DATA CENTER

NORTHERN ARIZONA VA HEALTH CARE SYSTEM

500 NORTH HIGHWAY 89

PRESCOTT, ARIZONA 86313 AUGUST 31, 2023

100% BID DOCUMENTS

649-22-70122-117

SPG

Scale: No Scale

PIPE SUPPORT DETAIL

Scale: No Scale

EXTERIOR WALL PIPE PENETRATION DETAIL

Scale: No Scale

CONDENSING UNIT DETAIL

Scale: No Scale

DRAIN PAN DETAIL

Scale: No Scale

DUCT BRANCH TAKE-OFFS

Scale: No Scale

RECTANGULAR DUCT HANGERS MINIMUM SIZE

Scale: No Scale

CONDENSING UNIT INSTALLATION DETAIL

Scale: No Scale

MECHANICAL CONTROLS DIAGRAM

1 ADDENDUM #1 4/29/2024

CONTROLS DESCRIPTION

CRAC UNIT TO PROVIDE MAXIMUM OF 60 DEGF SUPPLY AIR AND ADJUST TO MAINTAIN SPACE SETPOINT OF 72 DEGF TO 80.6 DEGF AT THE SERVER RACK INLET.

SENSORS ARE TO BE PROVIDED IN EVERY THIRD OR FOURTH RACK AT TWO LOCATIONS - ONE AT 2' AFF AND ONE AT 5' AFF.

SENSORS MANUFACTURED BY VIGILENT OR THIRD PARTY PROVIDED SENSORS MEET VIGILENT SPEC FOR PERFORMANCE, COMMUNCATIONS, AND INTEGRATION WITH VIGILENT SYSTEM.

BMS IS TO MONITOR THE CRAC UNIT PERFORMANCE AND DATA CENTER ENVIRONMENTAL CONDITIONS ONLY. ACTUAL CONTROL TO BE COMMANDED BY VIGILENT SYSTEM. ENSURE COMPATIBILITY OF VIGILENT SYSTEM OUTPUT TO BMS.

RH TO MAINTAIN 40% (ADJ).

HUMIDIFIER TO PROVIDE HUMIDIFICATION TO MAINTAIN SPACE SETPOINT AND IS TO MODULATE IN REAL TIME TO PREVENT UNDER AND OVER SHOOTING OF

SETPOINT. HUMIDIFIER TO HAVE STAND ALONE CONTROLLERS AND PROGRAMMING WITH OUTPUT TO VIGILENT SYSTEM FOR CONTROL AND TO BMS FOR MONITORING OF OPERATION AND ALARMS ONLY.

EACH CRAC UNIT WILL HAVE A BACKDRAFT DAMPER TO PREVENT BACKWARD FLOW OF AIR.

SEQUENCE OF OPERATIONS

SENSORS TO PROVIDE STATUS FOR THE FOLLOWING:

RACK INLET TEMPERATURES

DATA CENTER SPACE TEMPERATURE

CRAC UNIT DISCHARGE TEMPERATURE

CRAC UNIT RETURN TEMPERATURE

CRAC UNIT POWER DRAW

VIGILENT SYSTEM TO COMMAND CRAC UNIT ON AND OFF BASED ON THE TEMPERATURE FEEDBACK IN THE SPACE. SYSTEM TO ALSO MODULATE FAN SPEEDS AND ANY OTHER VARIABLE COMPONENTS FOR UNIT EFFICIENCY AND

PERFORMANCE. SYSTEM TO DETERMINE OPTIMAL USE OF EACH CRAC UNIT AT PARTIAL LOAD TO MEET DEMAND AND ACHIEVE EFFICIENCIES. CRAC UNIT SIZING AND QUANTITIES WERE DETERMINED BY SPACE LOAD REQUIRING ONE (1) CRAC UNIT. SYSTEM TO ALSO MONITOR AND TRACK RUN TIMES FOR UNITS AND TO ROTATE UNIT OPERATION TO PROVIDE EQUAL RUN TIMES TO THE EXTENT POSSIBLE.

PROVIDE ALL NECESSARY HARDWARE, SOFTWARE, ACCESSORIES, COMPONENTS, PROGRAMMING, ETC., REQUIRED FOR A FULLY FUNCTIONING CONTROL SYSTEM. SYSTEM DESCRIBED HEREIN IS THE VIGILENT DYNAMIC OPTIMIZED COOLING.

CRAC UNIT INTERNAL CONTROLS TO OPERATE CRAC COMPONENTS TO ACHIEVE SUPPLY DISCHARGE TEMPERATURE NEEDED IN RESPONSE TO SPACE CONDITIONS INCLUDING DATA CENTER TEMPERATURE AND RACK INLET TEMPERATURES.

Scale: No Scale

HUMIDIFIER DIAGRAM