ATT 8 - Vol 4-Drawings-Mechanical Addend-EHRM-Big Spring.pdf

1" CD

/8

R

L

/8

R G

SERVER ROOM

105A

/4

N

P W

FOR CONTINUATION REFER TO 3/M-103

11 11

OFF

S

/8

R

L

/8

R G

CRAC-4-1 CRAC-4-2

3/4" CD

3/4" CD1/2" NPW

1/2" DCW

CU-4-1 CRAC-4-2

30 / 30 SA

2' - 10" 2' - 10"

3' - 0"

3' - 0"

3' - 0"

3' - 0"

TYP.9

T

T

T

H

H

H

MECH RM

4' - 0"

PROVIDE NEW 2" DOWN SPOUT NOZZLE

WITH RODENT MESH AT NEW 2" DRAIN

LINE PENETRATION OF FOUNDATION WALL

CORE DRILL EXISTING EXPOSED FOUNDATION

WALL UNDER FLOOR LEVEL AND INSTALL NEW

2" DRAIN LINE TO NEW FLOOR DRAIN.

CORE DRILL EXISTING SLAB AND INSTALL

NEW 2" FLOOR DRAIN WITH TRAP GUARD.

/8

R

L

/8

R G

/8

R

L

/8

R G

CRAC (E)CRAC (E)

CU (E)

CU (E)

1 1

7 7

TYP.9

TYP.9

SERVER RM

105A

MECH RM

VA Project Number:

Building:

Drawing Number:

Project Title:

Project Location:

Issue Date:

Checked By: Drawn By:

Drawing Title:

FULLY

SPRINKLERED

Office of Construction and Facilities Management

U.S. Department of Veterans Affairs

A

Submission:

ARCHITECT / ENGINEER OF RECORD:

Revisions: Date:

CONSULTANTS:

/8

/4

/8

/2

/4

-1

/2

ENGINEER:

HUITT-ZOLLARS

500 W. 7th St., Ste. 300 Fort Worth, TX 76102 817-335-3000

ARCHITECT:

CB DESIGN GROUP

421 King St., Ste. 301

ALEXANDRIA, VA 22314

703-772-4213

PROFESSIONAL SEAL:

West Texas VA Health Care System Big Spring, TX 79720

2345678910111213141516

B

C

D

E

F

G

H

I

J

12345678910111213141516

CIVIL/STRUCTURAL:

H2B 1225 N Loop W, Suite 800

HOUSTON, TX 77008

713-864-2900

12/23/2022

519-21-900

EALJW

VA BSP EHRM INFRASTRUCTURE

UPGRADES

CONSTRUCTION DOCUMENTS

HVAC ENLARGED PLAN

M-404

-2

-9

M -4

/2

/2

.p d f

1/4" = 1'-0"

BUILDING 4 - ROOM 105A NEW WORK

1/4" = 1'-0"

BUILDING 4 - ROOM 105A DEMO

2' 4' 8'0'

1/4" =1'-0"SCALE

NOTES BY SYMBOL

APPLIES TO SHEET M-404

NOTE DESCRIPTION

DETAIL

SHEET

SCHEDULE

SHEET

CONTROLS

SHEET

COORDINATE WITH ARCHITECT TO PATCH HOLES IN EXTERIOR WALLS.

FINISH TO MATCH EXISTING

COORDINATE WITH ARCHITECT TO PATCH EXISTING INTERIOR PARTITION

PENETRATION. FINISH TO MATCH EXISTING.

DEMOLISH EXISTING CRAC UNITS IN ROOM 106. DISCONNECT EXISTING

ELECTRICAL CONNECTIONS. EXISTING DISCONNECT SWITCH AND

CIRCUITS SHALL REMAIN FOR CONNECTION TO NEW UNIT.

DEMOLISH ALL PIPING INCLUDING EXISTING REFRIGERANT AND

CONDENSATE DRAIN PIPING FROM CONDENSING UNITS TO CRAC UNITS.

DEMOLISH ALL EXISTING DUCTWORK IN MECHANICAL ROOM FROM CRAC

UNIT TO DEMISING WALL.

DEMOLISH EXISTING WALL MOUNTED RETURN AIR GRILL. REUSE AND

ENLARGE OPENING FOR NEW GRILL.

DEMOLISH EXISTING CRAC CONDENSING UNITS AND ASSOCIATED PIPING.

DISCONNECT EXISTING ELECTRICAL CONNECTIONS. DISCONNECT

SWITCH AND CIRCUITS SHALL REMAIN FOR CONNECTION TO NEW UNIT.

8 EXISTING CONCRETE PAD TO REMAIN AND BE REUSED. - - -

EXISTING DUCTWORK, FLEX DUCT, AND AIR DEVICES, ABOVE RIGID

CEILING, IN SERVER ROOM TO REMAIN.

REUSE AND ENLARGE EXISTING REFRIGERANT PIPING PENETRATION

FOR NEW REFRIGERANT PIPING.

AE500 - -

NEW CONDENSING UNIT FOR CRAC. PROVIDE 3FT CLEAR ON ALL SIDES.

CONNECT EXISTING ELECTRICAL CIRCUIT TO NEW UNIT. EXTEND

EXISTING CIRCUIT AS NEEDED TO ACCOMMODATE NEW UNIT. FIELD

VERIFY EXISTING CIRCUIT CONDITION AND CAPACITY ARE ADEQUATE

FOR NEW UNIT AND REPLACE CIRCUITS IF NEEDED. CIRCUIT SHALL BE A

MINIMUM OF 3#12,#12G, 3/4" C. AND A 15A/3P CIRCUIT BREAKER.

- M-602 M-701

NEW 40 IN X 30 IN, WALL MOUNTED RETURN GRILL. REUSE EXISTING

GRILL OPENING AND ENLARGE TO NEW DIMMENSIONS.

ROUTE NON-POTABLE WATER LINE SUSPENDED FROM ROOF STRUCTURE

TO CRAC INLET FOR HUMIDIFIER MAKE-UP WATER.

- M-601 -

PROVIDE NEW UPFLOW CRAC UNITS AS SCHEDULED. INSTALL

EQUIPMENT SUCH THAT SERVICE CLEARANCES ARE UNOBSTRUCTED.

CONNECT EXISTING ELECTRICAL CIRCUIT TO NEW UNIT. EXTEND

EXISTING CIRCUIT AS NEEDED TO ACCOMMODATE NEW UNIT. FIELD

VERIFY EXISTING CIRCUIT CONDITION AND CAPACITY ARE ADEQUATE

FOR NEW UNIT AND REPLACE IF NEEDED. CIRCUIT SHALL BE A MINIMUM

OF 3#3, #8G, 1-1/4”C. AND AN 80A/3P CIRCUIT BREAKER.

- M-602 M-701

15 PROVIDE EMERGENCY OFF SWITCH NEAR DOOR ON WALL 4 FT AFF.

16 PROVIDE SMOKE SENSOR MOUNTED IN SUPPLY DUCT. - - 1/M-701

CONNECT NEW DUCT TO EXISTING MAIN ABOVE MECHANICAL ROOM

CEILING

ROUTE REFRIGERANT PIPING OVERHEAD USING EXISTING WALL

PENETRATIONS. VERIFY PIPE ROUTING SIZES AND INSTALLATION WITH

MANUFACTURER'S INSTALLATION MANUAL.

PROVIDE ROOM TEMPERATURE SENSOR. MOUNTED 4 FT AFF. SENSOR

MUST BE ABLE TO REPORT TEMPERATURE DATA TO LIEBERT ICOM OR

CRAC MANUFACTURER'S CONTROLLER.

PROVIDE ROOM HUMIDITY SENSOR. MOUNTED 4 FT AFF. SENSOR MUST

BE ABLE TO REPORT TEMPERATURE DATA TO LIEBERT ICOM OR CRAC

MANUFACTURER'S CONTROLLER.

ADDENDUM 01 08/22/20231

EXTERNAL STATIC PRESSURE - IN WG

FACE VELOCITY - FPM

COIL FACE AREA - SQUARE FEET

MOTOR HORSEPOWER

NUMBER OF ROWS / FINS PER INCH

FAN DATA -

EVAPORATOR

UNIT WEIGHT - LBS

AIRFLOW - CFM

UNIT TAG

MODEL NUMBER

MANUFACTURER

AREA SERVED

GENERAL

9,134

2,070

CRAC-4-1

BLDG 4 RM 105A

LEIBERT

VS070AD

COMPUTER ROOM AIR-CONDITIONING UNIT SCHEDULE

CAPACITY - kW

LAT DB/WB - °F

EAT DB/WB - °F

TOTAL CAPACITY - KW

EVAPORATOR

COOLING

COIL

ELECTRIC

REHEAT COIL

SENSIBLE CAPACITY - KW

REFRIGERANT CHARGE / CIRCUIT - LB

NOTES

FILTERS

FILTER EFFICIENCY MERV 8

FILTER TYPE 4 IN PLEATED

NOTES:

1. PROVIDE MANUFACTURER'S CONDENSATE PUMP.

2. PROVIDE (6) 25X20 IN FILTERS.

3. INSULATE BOTH REFRIGERANT GAS AND LIQUID PIPING SEPARATELY.

4. PROVIDE ADDITIONAL REFRIGERANT CHARGE FOR INTERCONNECTED PIPING. CONTRACTOR SHALL

CALCULATE ACTUAL CHARGE BASED ON INSTALLED LENGTH ACCORDING TO MANUFACTURER'S

INSTALLATION MANUAL.

5. PROVIDE NEMA 4 DISCONNECT SWITCH FOR OUTDOOR UNIT.

6. PROVIDE NEMA 12 DISCONNECT SWITCH FOR INDOOR UNIT.

7. PROVIDE MANUFACTURER'S BMS COMMUNICATION CARD FOR BACNET/IP INTEGRATION WITH BMS.

8. PROVIDE CRAC WITH U2U NETWORKING FOR ICOM CONTROLLER.

9. CONFIRM REFRIGERANT CHARGE WITH MANUFACTURER.

3 / 12

24.65

58.7 / 54.3

73.2

85 / 63.8

71.2

8.0

1,2,3,4,5,6,7,8

85,300

9.6

22.0

9,134

7.5

0.5

AIRFLOW - CFM

CAPACITY - BTU/H

INFRARED

HUMIDIFIER

CAPACITY - kW

CAPACITY - LBS/HR

AIR-COOLED

CONDENSING

UNIT

DESIGN AMBIENT AIR TEMPERATURE - °F 105

NOMINAL TONS 20

ELECTRICAL DATA - MCA 6.3

ELECTRICAL DATA - FLA 5.6

ELECTRICAL DATA - VOLTAGE/PHASE 460/3

ELECTRICAL DATA - MOCP 15

REFRIGERANT PIPE CONNECTION SIZE - LIQUID 5/8

REFRIGERANT PIPE CONNECTION SIZE - GAS 7/8

MINIMUM SENSIBLE COP 2.42

WEIGHT - LBS. 602

MODEL NUMBER MCL110E8

ELECTRICAL

DATA MOCP

MCA

VOLTAGE/PHASE

75.9

460 / 3

LOW AMBIENT AIR TEMPERATURE - °F 0

UNIT TAG CU-4-1

REFRIGERANT CHARGE / CIRCUIT- LB 7.5

FLA 62.9

9,134

2,070

CRAC-4-2

BLDG 4 RM 105A

LEIBERT

VS070AD

MERV 8

4 IN PLEATED

3 / 12

24.65

58.7 / 54.3

73.2

85 / 63.8

71.2

8.0

1,2,3,4,5,6,7,8

85,300

9.6

22.0

9,134

7.5

0.5

6.3

5.6

460/3

5/8

7/8

2.42

MCL110E8

75.9

460 / 3

CU-4-2

7.5

62.9

REFRIGERANT TYPE R407C R407C

1,350

CRAC-1-1

BLDG 1 RM 98A

LEIBERT

MT036

MERV 8

2 IN PLEATED

3 / 12

3.1

58.7 / 54.3

9.8

80 / 62.7

9.2

NOTE 9

1,3,4,5,6,7,8

7.4 (kw)

1,350

0.5

0.2

15.3

12.6

460/3

1/2

7/8

PFD037A-H

8.1

460 / 3

CU-1-1

NOTE 9

6.5

R410A

HVAC DUCT SCHEDULE

NOTESEQUIPMENT TYPEUNIT TAG

PRESSURE

CLASS

(IN WG)

SEAL

CLASS

NOTES:

1. PROVIDE 2 INCH THICK ACOUSTICAL FLEXIBLE ELASTOMERIC DUCT LINER IN SUPPLY AIR DUCT CONNECTED TO CRAC UNITS.

2. ROUND AND OVAL SPIRAL SEAM DUCTS DO NOT REQUIRE SEALING OF THE SPIRAL SEAM.

3. TRANSVERSE SEALING WITH MASTICS IS NOT REQUIRED WHERE JOINT CONSTRUCTION IS AN ENGINEERED PRODUCT MEETING SEAL CLASS A (LEAKAGE CLASS 3/6) PERFORMANCE. SUBMIT PRODUCT DATA FOR APPROVAL.

4. PROVIDE DUAL WALL DUCT. PEROFRATE INNER WALL OF DUCT FOR ACOUSTICAL PERFORMANCE.

DUCT TYPE

LEAKAGE

CLASS

(ROUND/

RECT)

LEAK

PRESSURE

TESTING

REQUIRED

AIR TEMP

RANGE

(°F)

CRAC UNIT

CRAC-96A (E),

CRAC-96B (E)

+ 1.0 3/6ASUPPLY NO 1,2,3,450-55

INSULATION

INSTALLED

R-VALUE

R-6

DUCT MATERIAL

ALUMINUM

DUCT LOCATION

INTERIOR

DUCT CONSTRUCTION

RECTANGULAR /

ROUND SPIRAL SEAM

DUCT

THICKNESS

(GAGE)

SMACNA

MIN. 26

GAGE

DIFFUSER AND GRILLE SCHEDULE

DESIGNATION

MODEL

MANUFACTURER

NOTES

VOLUME CONTROL

NOTES:

1. RUNOUT DUCT SIZES ARE THE SAME CLEAR AREA SIZE AS THE NECK SIZE OF AIR DISTRIBUTION DEVICE, UNLESS NOTED OTHERWISE. ROUND FLEXIBLE (MAXIMUM 5 FEET LONG) OR METAL DUCTS CAN BE PUSHED INTO AN OVAL

CONFIGURATION, WHERE NEEDED, PROVIDED NET CLEAR INSIDE AREA IS MAINTAINED.

DL

DUCT MOUNTED DRUM LOUVERS

CFM NECK SIZE

10 x 4150

DL

TITUS

12 x 6300

MATERIAL

SERVICE

STEEL

DEVICE

DESCRIPTION

PERFORMANCE

SCHEDULE

SUPPLY

G1

DUCT MOUNTED SUPPLY GRILLES

18 x 18500

CFM NECK SIZE

10 x 4150

20 x 201,350

24 x 242,800

RS

TITUS

STEEL

SUPPLY

VA Project Number:

Building:

Drawing Number:

Project Title:

Project Location:

Issue Date:

Checked By: Drawn By:

Drawing Title:

FULLY

SPRINKLERED

Office of Construction and Facilities Management

U.S. Department of Veterans Affairs

A

Submission:

ARCHITECT / ENGINEER OF RECORD:

Revisions: Date:

CONSULTANTS:

/8

/4

/8

/2

/4

-1

/2

ENGINEER:

HUITT-ZOLLARS

500 W. 7th St., Ste. 300 Fort Worth, TX 76102 817-335-3000

ARCHITECT:

CB DESIGN GROUP

421 King St., Ste. 301

ALEXANDRIA, VA 22314

703-772-4213

PROFESSIONAL SEAL:

West Texas VA Health Care System Big Spring, TX 79720

2345678910111213141516

B

C

D

E

F

G

H

I

J

12345678910111213141516

CIVIL/STRUCTURAL:

H2B 1225 N Loop W, Suite 800

HOUSTON, TX 77008

713-864-2900

12/23/2022

519-21-900

EALJW

VA BSP EHRM INFRASTRUCTURE

UPGRADES

CONSTRUCTION DOCUMENTS

HVAC SCHEDULES

M-602

-2

-9

M -6

/2

/2

.p d f

ADDENDUM 01 08/22/20231

CRAC INPUT/OUTPUT POINTS SCHEDULE

NOTESPOINT DESCRIPTION CALCULATED

VALUE

ANALOG

INPUT

UNIT

TAG

SYSTEM START/STOP

ANALOG

OUTPUT

BINARY

INPUT

BINARY

OUTPUT

SUPPLY FAN STATUS

C R

A C

-4 -1

, C R

A C

-4 -2

, C R

A C

-4 -3

C

R A

C -1

-1 , C

R A

C -1

-2

CRAC SEQUENCE OF OPERATIONS

CRAC-4-1, CRAC-4-2

SUPPLY FAN FAULT

RACK AIR TEMPERATURE

A. The Computer Room Air-Conditioning units are up flow units with electric reheat and humidification capabilities. The CRAC units are split system direct expansion units. These units will operate according to manufacturer's control algorithms. The contractor is responsible for providing additional sensors, unit controllers, and interlocks required to meet sequence requirements. The CRAC units must be provided with iCOM U2U communication which will allow operation of units in Teamwork, Standby, and Cascade modes. All control points available through the manufacturer's controller shall be able to be integrated into the existing campus Metasys

BMS.

B. The CRACs must operate in "Teamwork" operation.

C. If any active unit suffers an alarm or failure the remaining unit(s) provide capacity for full load except for:

1. Room air smoke detection

D. Mode of Operations:

1. Occupied mode: 24 hour operation

E. General Operation

1. The master unit controller monitors all rack mounted sensors and sets fan operating speed for all

CRAC fans based on the highest temperature reading.

2. Compressor capacity is controlled individually by each unit controller to maintain supply air temperature set point at CRAC discharge.

3. CRAC humidifier is controlled independently by each CRAC controller based on its humidity sensor and set point.

F. The supply fan must de-energize, and an alarm signal must be sent to DDC system if any of the following conditions occur:

1. Manufacturer safety prevents safe operation (including condensate pump failure).

2. Smoke is detected in the server room.

G. An alarm signal must be sent to DDC system if any of the following conditions occur:

1. Rack air temperature is greater than 81°F (adj.)

2. Rack relative humidity is greater than 60% (adj.)

3. Rack relative humidity is less than 30% (adj.)

H. Emergency shut-off button must turn off CRAC units in the event it is manually activated.

I. BMS Operator Station Display:

1. System status

2. Rack air temperature (highest of 3 sensors deg F)

3. Rack air temperature setpoint in degrees F

4. Rack air humidity in % RH

5. Rack air humidity setpoint in % RH

6. Unit safety shutdown (Smoke, HVAC shutdown, manufacturer safety)

7. System run time in hours

ROOM SMOKE DETECTOR

RL

RG

TXV

DX SF

CT

BI - SUPPLY FAN STATUS

ECM

BI - SUPPLY FAN FAULT

BO - SUPPLY FAN START/STOP

M

(1) EACH UNIT

(1) EACH UNIT

(1) EACH UNIT

(3) CRAC-4-1,2

(2) CRAC-4-3,CRAC-1-1,2

SA

CRAC-4-1, CRAC-4-2 (CRAC-4-3 SIMILAR)

RA

Ƨ

SN

RACK AIR TEMPERATURE SETPOINT

(3) CRAC-4-1,2

(2) CRAC-4-3,CRAC-1-1,2

(1) EACH UNIT

RACK AIR HUMIDITY

RACK AIR HUMIDITY SETPOINT

(1) EACH UNIT

RACK TEMPERATURE SENSOR

T

T

RACK

(3) TEMPERATURE PROBES, AND (1)

HUMIDITY PROBE PER SENSOR. LOCATED

AT TOP, MIDDLE, AND BOTTOM OF FRONT

FACE OF RACK.

1 FT MAX FROM TOP OF RACK

APPROX. CENTER OF RACK

(1) EACH UNIT

SYSTEM RUNTIME

EACH UNIT

MANUFACTURER SAFETY10

OFF

11 EMERGENCY SHUT-OFF SWITCH (1) FOR ALL UNITS

T

1 FT. MAX FROM BOTTOM OF RACK

H

RL

RG

TXV

DX

VA Project Number:

Building:

Drawing Number:

Project Title:

Project Location:

Issue Date:

Checked By: Drawn By:

Drawing Title:

FULLY

SPRINKLERED

Office of Construction and Facilities Management

U.S. Department of Veterans Affairs

A

Submission:

ARCHITECT / ENGINEER OF RECORD:

Revisions: Date:

CONSULTANTS:

/8

/4

/8

/2

/4

-1

/2

ENGINEER:

HUITT-ZOLLARS

500 W. 7th St., Ste. 300 Fort Worth, TX 76102 817-335-3000

ARCHITECT:

CB DESIGN GROUP

421 King St., Ste. 301

ALEXANDRIA, VA 22314

703-772-4213

PROFESSIONAL SEAL:

West Texas VA Health Care System Big Spring, TX 79720

2345678910111213141516

B

C

D

E

F

G

H

I

J

12345678910111213141516

CIVIL/STRUCTURAL:

H2B 1225 N Loop W, Suite 800

HOUSTON, TX 77008

713-864-2900

12/23/2022

519-21-900

EALJW

VA BSP EHRM INFRASTRUCTURE

UPGRADES

CONSTRUCTION DOCUMENTS

CONTROL DIAGRAMS

M-701

-2

-9

M -7

/1

/1

.p d f

NOT TO SCALE

COMPUTER ROOM AIR-CONDITIONING UNIT

CONTROL DIAGRAM AND SEQUENCE OF OPERATIONS

ADDENDUM 01 08/22/20231