36C25618U0323-0002006.pdf

ELEV

ELEV.

CORRIDOR

1CC-4

DOCK

HALLWAY

108 109

1CN-4

107 106

105 2

1SN-4

104A

102D

102E

102F

102C 102B 102A

102G

101A

1CC-4

1SE-41201191181161SW-4

1C-2

DOCK

LOBBY

NEW LOADING

DOCK

LOADING

DOCK

STOR. STOR.

EQUIP

TOILET

MALE

LOCKERS

HANDICAP

TOILETSTOR.

TOILET

FEMALE

LOCKERS

CART

WASHSTOR.ELEC.

ELEC.

HVAC STOR. HVAC LOUNGE

CORRIDOR CORRIDOR

STOR.

VESTIBULE

CONFERENCE

CLASSROOM

OFFICEOFFICEOFFICE

OFFICE

OFFICE

STOR.

WORK

AREA

ELEC.

U360

EXIST HHW 4-P3

EXIST HHW 4-P4 EXIST 4-PH5

4-EF4

EXIST

4-EF1

EXIST

4-EF2

EXIST

4-EF3

EXIST CHW 4-P1

EXIST CHW 4-P2

EXIST VFD'S FOR

CHW PUMPS.

EXIST 4-C2

EXIST 4-C1

EXIST 4-FCU-A

EXIST 4-FCU-B

EXIST 4-FCU-H

EXIST 4-FCU-K

EXIST 4-FCU-J

EXIST 4-FCU-I

EXIST

4-FCU-G

EXIST

4-FCU-F

EXIST

4-FCU-CEXIST

4-FCU-D

EXIST

4-FCU-E

EXIST

4-RH1

EXIST 4-EF6

EXIST STEAM METER PANEL

EXIST DOMESTIC WATER METER PANEL

EXIST CHILLED WATER METER PANEL

EXIST JACE METER CONTROLLER

EXIST

4-AH5

EXIST DOMESTIC WATER

METER (16-502-4-PW-2).

EXIST CHILLED WATER METER

(16-502-4-CHW-1).

EXIST STEAM METER

(16-502-4-ST-1). EXIST STEAM METER

(16-502-4-ST-2).

EXIST DOMESTIC

WATER METER

(16-502-4-PW-1).

NOTES:

1. EXISTING DDC SYSTEM IS LOUISIANA CONTROLS.

REPLACE EQUIPMENT CONTROLLERS AND CONTROL

PANELS TO FULLY INTEGRATE TO SIEMENS CAMPUS

SYSTEM.

2. CONNECT EXISTING METERING TO CAMPUS DDC

CONTROL SYSTEM.

3. CONNECT NEW DDC CONTROLLERS TO EXISTING

ELECTRICAL SERVICE (TYP.)

ELEC PANEL SERVING

BLDG 4 (2 FEEDS),

BLDG 5, AND BLDG 6

(EXCEPT HVAC).

PROVIDE ELECTRICAL METERS FOR BLDG

4 (2 FEEDS), BLDG 5, AND BLDG 6 (EXCEPT

HVAC). PROVIDE NEW ELECTRICAL

METERS. CONTRACTOR SHALL PROVIDE

120V POWER CONNECTION TO NEW

ELECTRICAL METERS. CONTRACTOR

SHALL ROUTE TO NEAREST 120V PANEL

WITH SPARE CAPACITY, INSTALL NEW 20

A-1 POLE CIRCUIT BREAKER, & MAKE

CONNECTION. PROVIDE 20 A SWAP

SWITCH AT ELECTRICAL METERS FOR

DISCONNECT. CONTRACTOR TO VERIFY

120V PANEL LOCATION DURING PRE-BID

WALKTHROUGH.

EXIST

4-RH2

F E

D C

B G

Alexandria, Louisiana

A&E Design - Upgrade Energy Management Control Systems

October 30, 2013

VA256-12-C-0253

VETERANS HEALTH CARE

SYSTEM

Alexandria, LA

A

U.S. Department of Veterans Affairs

BASEMENT FLOOR PLAN -

MECHANICAL

4 --- NMT

M4-100 10-30-13

ELEV.

ELEV.

DRY FOOD

STORAGE

STORAGE

CORRIDOR

2CW-4

WORK SPACE

215 214 213

DRY

ELEC.

WORK SPACE THAW BOX

FREEZER

STORG

2SN-4

2CN-4

DISH

STORG

HAC

DISHWASHING

COOKS

COOLER

FREEZER

VEG/SALAD

PREP

DAIRY

COOLER

VEG/SALAD

COOLER

2CS-4

CORR.

2SW-4

FOOD PREP

COOKING

CORRIDOR

2CW-4

ICE AND

BEVERAGES

TRAY

ASSEMB.

AND CART

PARKING

OFFICE

DRY STOR.

CORRIDOR

2CE-4

2SE-4

EXIST

4-AHU1

ABOVE.

EXIST

4-AHU3

ABOVE.

EXIST

4-AHU4

ABOVE.

EXIST

4-AHU2

ABOVE.

FM

INSTALL AIRFLOW

METER IN EXISTING

50X20 RA DUCT.

INSTALL AIRFLOW

METER IN EXISTING

42X16 RA DUCT.

FM

NEW DDC TSTAT

INSTALLED IN

LOCATION OF EXIST.

TYP.

NOTES:

1. EXISTING DDC SYSTEM IS LOUISIANA CONTROLS.

REPLACE EQUIPMENT CONTROLLERS AND CONTROL

PANELS TO FULLY INTEGRATE TO SIEMENS CAMPUS

SYSTEM.

F E

D C

B G

Alexandria, Louisiana

A&E Design - Upgrade Energy Management Control Systems

October 30, 2013

VA256-12-C-0253

VETERANS HEALTH CARE

SYSTEM

Alexandria, LA

A

U.S. Department of Veterans Affairs

1ST FLOOR PLAN - MECHANICAL

4 WLP NMT

M4-101

EXIST 4-AHU1

EXIST 4-AHU2

EXIST 4-AHU3

EXIST 4-AHU4

EXIST 4-EFK2

EXIST 4-EFK1

EXIST 4-SFK1

EXIST 4-EF5

VFD

INSTALL NEW 10HP VFD

RATED FOR EXTERIOR

INSTALLATION. CONNECT

TO FAN MOTOR, EXISTING

ELECTRICAL SUPPLY, AND

NEW CONTROLS.

VFD

INSTALL NEW 5HP VFD RATED

FOR EXTERIOR INSTALLATION.

CONNECT TO FAN MOTOR,

EXISTING ELECTRICAL SUPPLY,

AND NEW CONTROLS.

VFD

INSTALL NEW 10HP VFD

RATED FOR EXTERIOR

INSTALLATION. CONNECT

TO FAN MOTOR, EXISTING

ELECTRICAL SUPPLY, AND

NEW CONTROLS.

INSTALL NEW 10HP VFD

RATED FOR EXTERIOR

INSTALLATION. CONNECT

TO FAN MOTOR, EXISTING

ELECTRICAL SUPPLY, AND

NEW CONTROLS.

V F

D

EXIST 4-EFD1

NOTES:

1. EXISTING DDC SYSTEM IS LOUISIANA CONTROLS.

REPLACE EQUIPMENT CONTROLLERS AND CONTROL

PANELS TO FULLY INTEGRATE TO SIEMENS CAMPUS

SYSTEM.

F E

D C

B G

Alexandria, Louisiana

A&E Design - Upgrade Energy Management Control Systems

October 30, 2013

VA256-12-C-0253

VETERANS HEALTH CARE

SYSTEM

Alexandria, LA

A

U.S. Department of Veterans Affairs

ROOF FLOOR PLAN - MECHANICAL

4 WLP NMT

M4-102

F E

D C

B G

Alexandria, Louisiana

A&E Design - Upgrade Energy Management Control Systems

October 30, 2013

VA256-12-C-0253

VETERANS HEALTH CARE

SYSTEM

Alexandria, LA

A

U.S. Department of Veterans Affairs

AI11

AI12

OUTSIDE AIR DAMPER (D-1)

RETURN AIR DAMPER (D-2)

SUPPLY FAN VFD STATUS

SUPPLY AIR TEMPERATURE SENSOR (T-5)

FLOWMETER CFM (F-2)

AI2

AI9

AI10

AI8

AI1

AI4

AI5

AI6

AI7

SPACE TEMPERATURE SENSOR (T-6)

SUPPLY

VFD

FAN

DO1

DI5

COIL

L P

S

V-2

NC

REHEAT

AI8

AO4

T

AI4

AO1

AI1

PANEL

DDC CONTROL

AI5

T-2

D-1

DI1

D-2

T-7

AI13

KEYNOTES:

EXISTING DDC DEVICE TO BE REUSED

IF FUNCTIONAL AND COMPATIBLE.

NEW DDC DEVICE TO BE INSTALLED.

COORDINATE EXACT LOCATION, SIZE,

TYPE, ETC. WITH EXISTING

CONDITIONS PRIOR TO PURCHASING.

FLOWMETER

H-1

H

AI7

T-4

T-1

C H

W R

COIL

CHW

V-1

NO

AI6

AO3

DPS-2

DI6

AI11

F-2

AIR

FILTER

SD-1

DI4

T-3

T

AI10

T-5

AI2

DI2

T-6T

AI12

SPACE

THERMOSTAT

AMBIENT AIR

TEMPERATURE

SENSOR

STEAM

SUPPLY AIR

OUTSIDE AIR

RETURN AIR

AI3

F-1

NO

NC

AI9

AO5

DPS-1

DI3

AIR

FILTER

FLOWMETER CFM (F-2)AI3

RETURN AIR RELATIVE HUMIDITY SENSOR (H-1)

MIXED AIR TEMPERATURE SENSOR (T-2)

CHILLED WATER CONTROL VALVE (V-1)

CHILLED WATER DISCHARGE AIR TEMPERATURE SENSOR (T-4)

STEAM REHEAT CONTROL VALVE (V-2)

FILTER STATUS (DPS-1)

DI1

LOW LIMIT TEMPERATURE SENSOR (T-3) STATUS

SUPPLY FAN STATUS

RETURN AIR SMOKE DETECTOR (SD-1) STATUS

DI2 HIGH LIMIT TEMPERATURE SENSOR (T-1) STATUS

DI3

DI4

DI5

DI6

AI13 AMBIENT AIR TEMPERATURE SENSOR (T-7)

FILTER STATUS (DPS-2)

DO1

AO5

AO4

AO1

AO2

AO3 CHILLED WATER CONTROL VALVE (V-1)

STEAM REHEAT CONTROL VALVE (V-2)

SUPPLY FAN VFD SPEED

OUTSIDE AIR DAMPER (D-1)

NOT USED

SUPPLY FAN START/STOP

T

TTT

4AHU-1 & 4AHU-3 CONTROL

SCHEMATIC & SEQUENCE

4 WLP NMT

M4-200

SEQUENCE OF OPERATION

1. GENERAL

1.1. AIR UNIT FAN TO BE STARTED AND STOPPED AS SCHEDULED BY THE ECC.

1.2. MIN. VFD SPEED SHALL BE 30% (ADJUSTABLE).

2. AIR FLOW

2.1. WHEN THE AIR UNIT FAN IS RUNNING, OUTSIDE AIR DAMPER, D-1, AND RETURN AIR DAMPER, D-2, WILL BE MODULATED TO MAINTAIN OUTSIDE AIR QUANTITY OF 900 CFM AS CALCULATED BY THE DIFFERENCE

IN RA CFM AND SA CFM AS MEASURED AT FLOWMETER F-1 & F-2, RESPECTIVELY.

2.2. D-1 AND D-2 WILL BE MODULATED TO MAINTAIN MIXED AIR TEMPERATURE AT A MIN. OF 38°F (ADJUSTABLE). IF THE RA CFM IS NOT SUFFICIENT TO MAINTAIN MAT MIN. AT REDUCED AIRFLOWS, THE

SUPPLY FAN VFD SHALL INCREASE TO MAINTAIN MIN. MAT SETPOINT. WHEN THE MIXED AIR

TEMPERATURE IS ABOVE 38°, THE DAMPERS WILL MODULATE TO MAINTAIN THE OUTSIDE AIR QUANTITY

AS BEFORE DESCRIBED. THE MIXED AIR TEMPERATURE IS TRANSMITTED BY T-2.

3. TEMPERATURE CONTROL

3.1. COOLING:

3.1.1. WHEN EITER OA OR RA DEWPOINT IS ABOVE 55°F CHILLED WATER VALVE, V-1, WILL BE MODULATED TO MAINTAIN CHILLED WATER COIL DISCHARGE AIR TEMPERATURE AT 55°F (ADJUSTABLE). SF VFD SHALL MODULATE TO MAINTAIN COOLING SPACE TEMPERATURE SETPOINT OF 74°F (ADJUSTABLE).

ONCE VFD IS AT MIN. SPEED STEAM REHEAT VALVE, V-2, SHALL BE MODULATED TO MAINTAIN

SPACE TEMPERATURE ABOVE HEATING SETPOINT. CHILLED WATER COIL DISCHARGE AIR

TEMPERATURE IS TRANSMITTED BY T-4 AND SPACE TEMPERATURE IS TRANSMITTED BY T-6.

3.1.2. WHEN BOTH OA AND RA DEWPOINT IS BELOW 56°F, SF VFD SHALL BE AT MIN. SPEED (30%) AND CHILLED WATER VALVE, V-1, SHALL BE MODULATED TO MAINTAIN SPACE TEMPERATURE SETPOINT.

ONCE CHILLED WATER VAVLE, V-1, IS 100% OPEN AND SPACE REQUIRES ADDITIONAL COOLING, SF

VFD SPEED SHALL INCREASE TO MAINTAIN SPACE TEMPERATURE SETPOINT.

3.2. HEATING: WHEN BOTH OA AND RA DEWPOINT IS BELOW 56°F, SF VFD SHALL BE AT MIN. SPEED AND STEAM REHEAT COIL VALVE, V-2, SHALL MODULATE TO MAINTAIN SPACE TMEPERATURE SETPOINT OF 68°F. ONCE STEAM REHEAT COIL VALVE, V-2 IS 100% OPEN, SF VFD SPEED SHALL INCREASE TO MAINTAIN SPACE TEMPERATURE SETPOINT. SUPPLY AIR SHALL BE LIMITED TO 95°F. SUPPLY AIR

TEMPERATURE IS TRANSMITTED BY T-5.

3.3. IF SPACE TEMPERATURE IS BETWEEN COOLING AND HEATING SPACE TEMPERATURE SETPOINT. VFD SHALL MAINTAIN MIN SPEED AND COOLING COIL VALVE, V-1, AND PREHEAT VALVE, V-2 SHALL REMAIN

CLOSED.

4. ALARMS

4.1. THE PRE-FILTER STATUS IS SENSED AT DPS-1 AND FINAL FILTER STATUS IS SENSED AT DPS-2. SHOULD THE DROP ACROSS THE FILTER EXCEED 1.5", THE SWITCH WILL CLOSE AND INITIATE AN ALARM TO THE

ECC.

4.2. THE UNIT AIR FAN WILL BE DE-ENERGIZED ON A RISE IN RETURN AIR TEMPERATURE ABOVE THE SETPOINT OF 85°F AS SENSED BY T-1, ON A DROP IN MIXED AIR TEMPERATURE BELOW THE SETPOINT

OF 35°F AS SENSED BY T-3, OR UPON DETECTION OF IONIZED PARTICLES BY SD-1.

4.3. A SEPARATE ALARM WILL BE INITIATED FOR EACH SAFETY. LIKEWISE, A SMOKE DETECTION ALARM WILL

INITIATED BY CONTRACT CLOSURE, TO THE FIRE ALARM SYSTEM PANEL.

4.4. WHEN THE AIR UNIT FAN IS DE-ENERGIZED FOR ANY REASON, THE AIR UNIT CONTROL VALVES AND

DAMPERS WILL RETURN TO THEIR NORMAL POSITIONS.

5. UNOCCUPIED MODE

5.1. DURING UNSCHEDULED PERIODS, THE AIR UNIT FAN WILL BE ENERGIZED SHOULD SPACE

TEMPERATURE EXCEED 80° (ADJUSTABLE), OR GO BELOW 60°F (ADJUSTABLE). ALL OPERATIONS WILL BE AS IN THE "OCCUPIED" MODE EXCEPT THE OUTSIDE AND RETURN DAMPERS WILL REMAIN IN THEIR

NORMAL POSITIONS. OUTSIDE AIR TEMPERATURE IS TRANSMITTED TO THE DCC BY T-7.

6. MORNING WARM-UP OR COOLDOWN

6.1. ONE HOUR PRIOR TO OCCUPANCY UNIT SHALL START IF SPACE TEMPERATURE IS ABOVE COOLING SETPOINT OR BELOW HEATING SETPOINT. ALL OPERATIONS WILL BE AS IN THE "OCCUPIED" MODE EXCEPT THAT OUTSIDE AIR AND RETURN AIR DAMPERS SHALL REMAIN IN THEIR NORMAL POSITIONS.

THIS ACTION SHALL BE LIMITED TO ONCE PER 24-HR PERIOD.

AIR HANDLING UNITS BALANCING SCHEDULE

LABEL AREA SERVED SUPPLY CFM OA CFM

COOLING COIL

GPM

PREHEAT

COIL

LBS/HR

REHEAT

COIL

LBS/HR

4-AH1 1ST FLOOR DISHWASH 4900 900 45 - 185

4-AH2 1ST FLOOR CARTWASH 6700 2990 64 - 289

4-AH3 1ST FLOOR OFFICE 3800 600 25 - 164

4-AH4 1ST FLOOR KITCHEN 6600 2990 65 - 249

4-AH5 BASEMENT 1700 1700 30 92 -

D C

B G

Alexandria, Louisiana

A&E Design - Upgrade Energy Management Control Systems

October 30, 2013

VA256-12-C-0253

VETERANS HEALTH CARE

SYSTEM

Alexandria, LA

A

U.S. Department of Veterans Affairs

SUPPLY

VFD

FAN

DO1

DI5

COIL

L P

S V-2

NC

REHEAT

AI8

AO4

T

AI4

AO2AO1

AI1

PANEL

DDC CONTROL

AI5

T-2

D-1

DI1

D-2

H-1

H

AI7

T-4

T-1

C H

W R

COIL

CHW

V-1

NO

AI6

AO3

DPS-2

DI6

AI11

AIR

FILTER

SD-1

T

DI4

T-3

AI10

T-5

AI3 DI2

STEAM

SUPPLY AIR

OUTSIDE AIR

RETURN AIR

AI2

F-1

F-2

SUPPLY

FAN

DI7

KITCHEN HOOD

SEQUENCE OF OPERATION

1. GENERAL

1.1. AIR UNIT FAN TO BE STARTED AND STOPPED AS SCHEDULED BY THE ECC.

1.2. MIN VFD SPEED SHALL BE 30% (ADJUSTABLE).

1.3. OA CFM SHALL BE CALCULATED BY THE DIFFERENCE IN RA CFM AND SA CFM AS MEASURED BY F-1 &

F-2, RESPECTIVELY.

2. AIR FLOW

2.1. WHEN THE KITCHEN SUPPLY AIR FAN IS ENERGIZED AND THE AIR UNIT FAN IS RUNNING, OUTSIDE AIR DAMPER, D-1, AND RETURN AIR DAMPER, D-2, SHALL BE MODULATED TO MAINTAIN A MIN. OF 2990 CFM

OA AIRFLOW.

2.2. WHEN THE KITCHEN SUPPLY AND EXHAUST FANS ARE DE-ENERGIZED, D-1 AND D-2 WILL BE MODULATED

TO MAINTAIN A MINIMUM OF 15% OF THE SUPPLY AIRFLOW MEASURED AT F-2.

2.3. D-1 AND D-2 WILL BE MODULATED TO MAINTAIN MIXED AIR TEMPERATURE AT A MIN. OF 38°F (ADJUSTABLE). IF THE RA CFM IS NOT SUFFICIENT TO MAINTAIN MAT MIN. AT REDUCED AIRFLOWS, THE

SUPPLY FAN VFD SHALL INCREASE TO MAINTAIN MIN. MAT SETPOINT. WHEN THE MIXED AIR

TEMPERATURE IS ABOVE 38°, THE DAMPERS WILL MODULATE TO MAINTAIN THE OUTSIDE AIR QUANTITY

AS BEFORE DESCRIBED. THE MIXED AIR TEMPERATURE IS TRANSMITTED BY T-2.

3. TEMPERATURE CONTROL

3.1. COOLING:

3.1.1. WHEN EITER OA OR RA DEWPOINT IS ABOVE 55°F CHILLED WATER VALVE, V-1, WILL BE MODULATED TO MAINTAIN CHILLED WATER COIL DISCHARGE AIR TEMPERATURE AT 55°F (ADJUSTABLE). SF VFD SHALL MODULATE TO MAINTAIN COOLING SPACE TEMPERATURE SETPOINT OF 74°F (ADJUSTABLE).

ONCE VFD IS AT MIN. SPEED STEAM REHEAT VALVE, V-2, SHALL BE MODULATED TO MAINTAIN

SPACE TEMPERATURE ABOVE HEATING SETPOINT. CHILLED WATER COIL DISCHARGE AIR

TEMPERATURE IS TRANSMITTED BY T-4 AND SPACE TEMPERATURE IS TRANSMITTED BY T-6.

3.1.2. WHEN BOTH OA AND RA DEWPOINT IS BELOW 56°F, SF VFD SHALL BE AT MIN. SPEED (30%) AND CHILLED WATER VALVE, V-1, SHALL BE MODULATED TO MAINTAIN SPACE TEMPERATURE SETPOINT.

ONCE CHILLED WATER VAVLE, V-1, IS 100% OPEN AND SPACE REQUIRES ADDITIONAL COOLING, SF

VFD SPEED SHALL INCREASE TO MAINTAIN SPACE TEMPERATURE SETPOINT.

3.2. HEATING: WHEN BOTH OA AND RA DEWPOINT IS BELOW 56°F, SF VFD SHALL BE AT MIN. SPEED AND STEAM REHEAT COIL VALVE, V-2, SHALL MODULATE TO MAINTAIN SPACE TMEPERATURE SETPOINT OF 68°F. ONCE STEAM REHEAT COIL VALVE, V-2 IS 100% OPEN, SF VFD SPEED SHALL INCREASE TO MAINTAIN SPACE TEMPERATURE SETPOINT. SUPPLY AIR SHALL BE LIMITED TO 95°F. SUPPLY AIR

TEMPERATURE IS TRANSMITTED BY T-5.

3.3. IF SPACE TEMPERATURE IS BETWEEN COOLING AND HEATING SPACE TEMPERATURE SETPOINT. VFD SHALL MAINTAIN MIN SPEED AND COOLING COIL VALVE, V-1, AND PREHEAT VALVE, V-2 SHALL REMAIN

CLOSED.

4. ALARMS

4.1. THE PRE-FILTER AND FINAL FILTER STATUS IS SENSED AT DPS-1 & DPS-2, RESPECTIVELY. SHOULD THE DROP ACROSS THE FILTER EXCEED 1.5", THE SWITCH WILL CLOSE AND INITIATE AN ALARM TO THE ECC.

4.2. THE UNIT AIR FAN WILL BE DE-ENERGIZED ON A RISE IN RETURN AIR TEMPERATURE ABOVE THE SETPOINT OF 85°F AS SENSED BY T-1, ON A DROP IN MIXED AIR TEMPERATURE BELOW THE SETPOINT

OF 35°F AS SENSED BY T-3, OR UPON DETECTION OF IONIZED PARTICLES BY SD-1.

4.3. A SEPARATE ALARM WILL BE INITIATED FOR EACH SAFETY. LIKEWISE, A SMOKE DETECTION ALARM WILL

INITIATED BY CONTRACT CLOSURE, TO THE FIRE ALARM SYSTEM PANEL.

4.4. WHEN THE AIR UNIT FAN IS DE-ENERGIZED FOR ANY REASON, THE AIR UNIT CONTROL VALVES AND

DAMPERS WILL RETURN TO THEIR NORMAL POSITIONS.

5. UNOCCUPIED MODE

5.1. DURING UNSCHEDULED PERIODS, THE AIR UNIT FAN WILL BE ENERGIZED SHOULD SPACE

TEMPERATURE EXCEED 80° (ADJUSTABLE), OR GO BELOW 60°F (ADJUSTABLE). ALL OPERATIONS WILL BE AS IN THE "OCCUPIED" MODE EXCEPT THE OUTSIDE AND RETURN DAMPERS WILL REMAIN IN THEIR

NORMAL POSITIONS. OUTSIDE AIR TEMPERATURE IS TRANSMITTED TO THE DCC BY T-7.

6. MORNING WARM-UP OR COOLDOWN

6.1. ONE HOUR PRIOR TO OCCUPANCY UNIT SHALL START IF SPACE TEMPERATURE IS ABOVE COOLING SETPOINT OR BELOW HEATING SETPOINT. ALL OPERATIONS WILL BE AS IN THE "OCCUPIED" MODE EXCEPT THAT OUTSIDE AIR AND RETURN AIR DAMPERS SHALL REMAIN IN THEIR NORMAL POSITIONS.

THIS ACTION SHALL BE LIMITED TO ONCE PER 24-HR PERIOD.

DPS-1

DI3

AIR

FILTER

KEYNOTES:

EXISTING DDC DEVICE TO BE REUSED IF FUNCTIONAL AND

COMPATIBLE.

NEW DDC DEVICE TO BE INSTALLED. COORDINATE EXACT

LOCATION, SIZE, TYPE, ETC. WITH EXISTING CONDITIONS PRIOR

TO PURCHASING.

KITCHEN FANS ARE TERMINATED IN 4-AHU2 PANEL. EXTEND

SIGNAL TO 4-AHU4.

1 2

AI9

AO5

EXHAUST

FAN-1

KITCHEN HOOD

DI8 DI9

EXHAUST

FAN-2

KITCHEN HOOD

T-7

AI13

T-6T

AI12

SPACE

THERMOSTAT

AMBIENT AIR

TEMPERATURE

SENSOR

T

AI11

AI12

OUTSIDE AIR DAMPER (D-1)

RETURN AIR DAMPER (D-2)

SUPPLY FAN VFD STATUS

SUPPLY AIR TEMPERATURE SENSOR (T-5)

SUPPLY AIR FLOWMETER (F-2)

AI2

AI9

AI10

AI8

AI1

AI4

AI5

AI6

AI7

SPACE TEMPERATURE SENSOR (T-6)

RETURN AIR RELATIVE HUMIDITY SENSOR (H-1)AI3

RETURN AIR FLOWMETER (F-1)

MIXED AIR TEMPERATURE SENSOR (T-2)

CHILLED WATER CONTROL VALVE (V-1)

CHILLED WATER DISCHARGE AIR TEMPERATURE SENSOR (T-4)

STEAM REHEAT CONTROL VALVE (V-2)

FILTER STATUS (DPS-1)

DI1

LOW LIMIT TEMPERATURE SENSOR (T-3) STATUS

SUPPLY FAN STATUS

RETURN AIR SMOKE DETECTOR (SD-1) STATUS

DI2 HIGH LIMIT TEMPERATURE SENSOR (T-1) STATUS

DI3

DI4

DI5

DI6

AI13 AMBIENT AIR TEMPERATURE SENSOR (T-6)

AIR FILTER STATUS (DPS-6)

KITCHEN HOOD EXHAUST FAN-2 STATUS

KITCHEN HOOD EXHAUST FAN-1 STATUS

DI9

DI8

DI7 KITCHEN HOOD SUPPLY FAN STATUS

DO1

AO5

AO4

AO1

AO2

AO3 CHILLED WATER CONTROL VALVE (V-1)

STEAM REHEAT CONTROL VALVE (V-2)

SUPPLY FAN VFD SPEED

OUTSIDE AIR DAMPER (D-1)

NOT USED

SUPPLY FAN START/STOP

T T

4AHU-2 & 4AHU-4 CONTROL

SCHEMATIC & SEQUENCE

4 WLP NMT

M4-201

D C

B G

Alexandria, Louisiana

A&E Design - Upgrade Energy Management Control Systems

October 30, 2013

VA256-12-C-0253

VETERANS HEALTH CARE

SYSTEM

Alexandria, LA

A

U.S. Department of Veterans Affairs

OUTSIDE AIR TEMPERATURE SENSOR (T-1)

DUCT STEAM REHEAT CONTROL VALVE (V-1)

SUPPLY AIR SMOKE DETECTOR (SD-1) STATUS

AIR FILTER STATUS (DPS-2)

AI2

AI1

CHILLED WATER CONTROL VALVE (V-2)AI3

OUTSIDE AIR DAMPER (D-1) STATUS

AIR FILTER STATUS (DPS-1)

FREEZESTAT (T-2)

SUPPLY FAN STATUS

NOT USED

SUPPLY

STR

FAN

DO2

DI4

COIL

L P

S

V-1

NC

PREHEAT

AI2

AO1 DO1

DI1

PANEL

DDC CONTROL

T

AI1

T-1

D-1

DI6

C H

W R

COIL

CHW

V-2

NO

AI3

AO2

DPS-2

DI7

AIR

FILTER

DI3

T-2

T-3

STEAM

OUTSIDE AIR

SD-1

NC

AI5

TO REHEAT

COILS AND

FAN COIL

UNITS

SEQUENCE OF OPERATION

1. GENERAL

1.1. AIR UNIT FAN TO BE STARTED AND STOPPED AS SCHEDULED BY THE ECC.

2. AIR FLOW

2.1. WHEN THE AIR UNIT FAN IS RUNNING, OUTSIDE AIR DAMPER, D-1 WILL OPEN 100%.

3. TEMPERATURE CONTROL

3.1. THE PREHEAT COIL DISCHARGE TEMPERATURE SETPOINT SHALL BE 45°F AS MEASURED BY T-4 AND

MAINTAINED BY MODULATING STEAM PREHEAT VAVLE, V-1.

3.2. WHEN THE OUTSIDE DEWPOINT TEMPERATURE IS ABOVE 55°F, CHILLED WATER VALVE, V-1, WILL BE MODULATED TO MAINTAIN SUPPLY AIR TEMPERATURE OF 55°F AS TRANSMITTED BY T-3. THE OUTSIDE

AIR TEMPERATURE IS TRANSMITTED BY T-1.

3.3. WHEN THE OUTSIDE AIR DEWPOINT TEMPERATURE IS BELOW 55°F, CHILLED WATER VALVE, V-1, WILL BE MODULATED TO MAINTAIN SUPPLY AIR TEMPERATURE SETPOINT OF 75°F SUPPLY AIR TEMPERATURE IS

TRANSMITTED BY T-3. THE OUTSIDE AIR TEMPERATURE IS TRANSMITTED BY T-1.

4. ALARMS

4.1. THE UNIT AIR FAN WILL BE DE-ENERGIZED ON A DROP IN COOLING COIL ENTERING AIR TEMPERATURE

BELOW THE 35°F SETPOINT OF T-2 OR UPON DETECTION OF IONIZED PARTICLES BY SD-1.

4.2. A SEPARATE ALARM WILL BE INITIATED FOR EACH SAFETY. LIKEWISE, A SMOKE DETECTION ALARM WILL

INITIATED BY CONTRACT CLOSURE, TO THE FIRE ALARM SYSTEM PANEL.

4.3. THE PRE-FILTER AND FINAL FILTER STATUS IS SENSED AT DPS-1 & DPS-2, RESPECTIVELY. SHOULD THE DROP ACROSS THE FILTER EXCEED 1.5", THE SWITCH WILL CLOSE AND INITIATE AN ALARM TO THE ECC.

4.4. WHEN THE AIR UNIT FAN IS DE-ENERGIZED FOR ANY REASON, THE AIR UNIT CONTROL VALVES AND

DAMPERS WILL RETURN TO THEIR NORMAL POSITIONS.

5. UNOCCUPIED MODE

5.1. DURING UNSCHEDULED PERIODS, THE AIR UNIT FAN WILL BE DE-ENERGIZED AND ALL CONTROLS AND CONTROL VALVES WILL RETURN TO THEIR NORMAL POSITIONS AND THE OUTSIDE AIR DAMPER WILL BE

CLOSED.

DUCT

DPS-1

DI2

KEYNOTES:

EXISTING DDC DEVICE TO BE REUSED IF

FUNCTIONAL AND COMPATIBLE.

NEW DDC DEVICE TO BE INSTALLED.

COORDINATE EXACT LOCATION, SIZE, TYPE, ETC.

WITH EXISTING CONDITIONS PRIOR TO

PURCHASING.

1 1

T T

DI1

DI2

DI3

DI4

DI5

DI6

DI7

AO1

AO2

DO1 OUTSIDE AIR DAMPER (D-1)

DUCT STEAM PREHEAT CONTROL VALVE (V-1)

CHILLED WATER CONTROL VALVE (V-2)

DO2 SUPPLY FAN START/STOP

4AHU-5 CONTROL SCHEMATIC

& SEQUENCE

4 WLP NMT

M4-202

H

AI4

H-1

OUTSIDE AIR HUMIDITY (H-1)AI4

AI5 SUPPLY FAN TEMPERATURE SENSOR (T-3)

D C

B G

Alexandria, Louisiana

A&E Design - Upgrade Energy Management Control Systems

October 30, 2013

VA256-12-C-0253

VETERANS HEALTH CARE

SYSTEM

Alexandria, LA

A

U.S. Department of Veterans Affairs

VFD

CAMPUS CHWS

CHWS

SEQUENCE OF OPERATION

1. GENERAL

1.1. THE ECC WILL ENERGIZE THE SCHEDULED CHILLED WATER PUMP WHEN ANY AIR UNIT OR FAN COIL

CALLS FOR COOLING. THE SELECTED PUMP VFD WILL BE ENABLED WITH STATUS OF THE PUMP

TRANSMITTED BY CONTACT CLOSURE IN THE VFD.

1.2. THE DRIVE SPEED WILL BE MODULATED TO MAINTAIN DIFFERENTIAL PRESSURE IN THE SYSTEM AT SETPOINT. STATIC PRESSURE SETPOINT SHALL BE RESET BASED ON CHILLED WATER VALUE POSITION TO MINIMIZE PUMP SPEED. SYSTEM PRESSURE IS SENSED AT THE SPECIFIED LOCATION ON THE FIRST FLOOR IN THE DISHWASHING EQUIPMENT AREA. THIS PRESSURE IS SENSED AT THAT LOCATION AND

TRANSMITTED TO THE ECC BY THE SPECIFIC TRANSMITTER IN 4-AHU-01 CONTROL PANEL.

1.3. THE CHILLED WATER PUMPS WILL BE ALTERNATED ON A WEEKLY (ADJUSTABLE) SCHEDULE.

1.4. WHEN ENABLED, THE LEAD PUMP SHALL BE STARTED. IF THE PUMP STATUS DOES NOT MATCH THE COMMAND, AN ALARM SHALL BE GENERATED AND THE PUMP SHALL BE STOPPED. THE LAG PUMP SHALL

AUTOMATICALLY START.

CHWS

SENSOR (TYP)

(N.C.)

CONTROL VALVE

TEMPERATURE

STR1

STEAM CONVERTER

TO COND.

PUMP

PUMP

TO COND.

FROM BLDG

FROM

CAMPUS

STEAM

FROM

CAMPUS

STEAM

(N.C.)

CONTROL VALVE

TO BLDG

FS

(TYP)

FLOW SWITCH

180 160 140

HOT WATER SETPOINT

(DEG F)

OUTDOOR

AIR

TEMPERATURE

(DEG F)

HEATING HOT WATER RESET SCHEDULE SEQUENCE OF OPERATION

1. START/STOP CONTROLS - THE HEATING SYSTEM SHALL AUTOMATICALLY START WHEN ANY

TERMINAL UNIT CALLS FOR HEAT.

1.1. WHEN THE SYSTEM IS "ON":

1.1.1. STEAM CONTROL VALVES SHALL MODULATE TO MAINTAIN THE HOT WATER

SUPPLY TEMPERATURE AT SETPOINT.

1.1.2. THE HOT WATER SUPPLY TEMPERATURE RESETS INVERSELY WITH THE OUTDOOR

TEMPERATURE AS SCHEDULED: AT 30°F OA, HWS TEMPERATURE AT 180°F, AT 70°F

(AND ABOVE) OA, HWS TEMPERATURE AT 140°F.

1.1.3. STEAM HOT WATER CONVERTERS, 4-HX1 & 4-HX2, ARE 100% REDUNDANT AND

ONLY ONE UNIT AT A TIME SHALL OPERATE.

1.2. WHEN NO TERMINAL UNIT IS CALLING FOR HEAT THE SYSTEM IS "OFF", THE HEATING

SHALL BE DISABLED.

2. HEAT EXCHANGER CONTROL

2.1. ONCE FLOW IS PROVEN BY THE RESPECTIVE FLOW SWITCH, THE STEAM INLET VALVE

WILL MODULATE TO MAINTAIN THE DESIRED HOT WATER SUPPLY TEMPERATURE TO

SETPOINT AS RESET BY THE OUTDOOR AIR TEMPERATURE.

3. HOT WATER PUMP CONTROL

3.1. WHEN ENABLED, THE LEAD PUMP SHALL BE STARTED. IF THE PUMP STATUS DOES NOT

MATCH THE COMMAND, AN ALARM SHALL BE GENERATED AND THE PUMP SHALL BE

STOPPED. THE LAG PUMP SHALL AUTOMATICALLY START.

3.2. PUMPS SHALL SWITCH LEAD/LAG STATUS ON A WEEKLY BASIS (ADJUSTABLE).

STR

STEAM CONVERTER

FS

T

DI1

DI2

AI1

DI3

DO1

DI4

DO2

SUPPLY STEAM TEMPERATURE SENSOR

STEAM CONVERTER (4-C-2) FLOW SWITCH STATUS

HOT WATER PUMP (4-HWP-3) START/STOP

HOT WATER PUMP (4-HWP-4) START/STOP

DI1

AI1

STEAM CONVERTER (4-C-1) FLOW SWITCH STATUSDI2

HOT WATER PUMP (4-HWP-3) STATUS

HOT WATER PUMP (4-HWP-4) STATUS

STEAM CONVERTER (4-C-2) CONTROL VALVE

STEAM CONVERTER (4-C-1) CONTROL VALVE

DI3

DI4

AO1

A02

DO1

DO2

AI1

DO1

DI1

AO1

AI2

DO2

DI2

AO2

AI3

VFD

DIFFERENTIAL PRESSURE SENSOR

CHILLED WATER PUMP (4-P1) VFD STATUS

CHILLED WATER PUMP (4-P1) START/STOP

CHILLED WATER PUMP (4-P2) START/STOP

AI2

AI1

CHILLED WATER PUMP (4-P2) VFD STATUSAI3

CHILLED WATER PUMP (4-P1) STATUS

CHILLED WATER PUMP (4-P2) STATUS

CHILLED WATER PUMP (4-P1) VFD SPEED

CHILLED WATER PUMP (4-P2) VFD STATUS

DI1

DI2

AO1

A02

DO1

DO2

HEATING HOT WATER & SCHW

SYSTEMS CONTROL SCHEMATICS

& SEQUENCES

4 WLP NMT

M4-203

KEYNOTES:

EXISTING DEVICE TO BE REUSED IF

FUNCTIONAL AND COMPATIBLE.

ADD DEVICE.

NOTES:

1. ALL EXISTING CONTROL DEVICES ARE

DDC. SENSORS AND VFD CAN BE REUSED

IF FUNCTIONAL AND COMPATIBLE.

2. DDC CONTROLLER TO BE REPLACED.

CONNECT NEW CONTROLLER TO

EXISTING ELECTRICAL SERVICE.

AO1

AO2

NOTES:

1. DDC CONTROLLER TO BE REPLACED.

P

D C

B G

Alexandria, Louisiana

A&E Design - Upgrade Energy Management Control Systems

October 30, 2013

VA256-12-C-0253

VETERANS HEALTH CARE

SYSTEM

Alexandria, LA

A

U.S. Department of Veterans Affairs

PANEL

DDC CONTROL

H W

R

V-1

NC

COIL

HTG

NO

NOTES:

1. EXISTING HOT WATER VALVE TO

REMAIN. REPLACE TWO POSITION

VALVE ACTUATOR WITH

MODULATING ACTUATOR.

2. REPLACE CONTROLLER AND SPACE

TEMPERATURE SENSOR.

3. REHEAT COIL 4RH-1 IS TYPICAL FOR

4RH-2.

AO1

AI1

PANEL

DDC CONTROL

NOTES:

1. EXISTING HOT WATER VALVE AND

CHILLED WATER VALVE TO REMAIN.

REPLACE TWO POSITION VALVE

ACTUATORS WITH MODULATING

ACTUATORS.

2. REPLACE CONTROLLER AND SPACE

TEMPERATURE SENSOR.

3. FAN COIL UNIT "A" IS TYPICAL OF "B"

TO "K".

C H

W R

COIL

CHW SUPPLY

FAN COIL

HTG

H W

R

TO SUPPLY

FROM B-4

AHU-05

TO SUPPLY

FROM B-4

AHU-05

AO1

AI1

DO1

DI1

AO2

AI2

SEQUENCE OF OPERATION

1. GENERAL

1.1 WHEN AIR UNIT 4-AHU-05 IS ENERGIZED, THE REHEAT CONTROLS WILL BE

ENABLED. THE REHEAT VALVE, V-1, WILL BE MODULATED TO MAINTAIN SPACE

TEMPERATURE AT ROOM TEMPERATURE SENSOR SETPOINTS.

1.2 WHEN 4-AHU-05 IS DE-ENERGIZED, THE REHEAT CONTROLS WILL BE DISABLED.

SEQUENCE OF OPERATION

1. GENERAL

1.1. WHEN AIR UNIT 4-AHU-05 IS ENERGIZED, THE FAN COIL UNIT WILL BE

ENERGIZED. WITH THE FAN COIL UNIT RUNNING, CHILLED WATER VALVE, V-1,

AND HOT WATER VALVE, V-2, WILL BE MODULATED, IN SEQUENCE, TO

MAINTAIN SPACE TEMPERATURE AT THE ROOM TEMPERATURE SETPOINT.

1.2. WHEN 4-AHU-05 IS DE-ENERGIZED, THE FAN COIL UNIT WILL BE DE-ENERGIZED

AND ALL CONTROL VALVES WILL BE CLOSED TO THEIR RESPECTIVE COILS.

T-1T

AI2

SPACE

TEMPERATURE

SENSOR

HOT WATER CONTROL VALVE (V-1)

SPACE TEMPERATURE SENSOR (T-1)AI2

AI1

CHILLED WATER CONTROL VALVE (V-1)

HOT WATER CONTROL VALVE (V-2)AI2

AI1

SUPPLY FAN STATUSDI1

V-2

NCNO

V-1

NO

AO1

A02

SUPPLY FAN START/STOPDO1

CHILLED WATER CONTROL VALVE (V-1)

HEAT HOT WATER CONTROL VALVE (V-2)

HOT WATER CONTROL VALVE (V-1)AO1

REHEAT COIL (TYP.), FAN COIL UNIT

(TYP.) & EXHAUST FANS CONTROL

SCHEMATICS & SEQUENCES

4 WLP NMT

M4-204

PANEL

DDC CONTROL

EXHAUST

FAN

DO1

DI1

T-1T

AI1

SPACE

TEMPERATURE

SENSOR

SEQUENCE OF OPERATION

1. GENERAL

1.1 FAN SHALL BE ENERGIZED WHEN SPACE TEMPERATURE IS ABOVE

SETPOINT.

1.2 ALARM SHALL BE GENERATED IF FAN STATUS DOES NOT MATCH FAN

COMMAND.

PANEL

DDC CONTROL

EXHAUST

FAN

DO1

DI1

SEQUENCE OF OPERATION

1. GENERAL

1.1 FAN SHALL BE ENERGIZED WHEN BUILDING IS OCCUPIED.

1.2 ALARM SHALL BE GENERATED IF FAN STATUS DOES NOT MATCH FAN

COMMAND.

PANEL

DDC CONTROL

DI1

SEQUENCE OF OPERATION

1. GENERAL

1.1 FAN IS ENERGIZED FROM DISHWASHER. FAN

STATUS SHALL BE COMMUNICATED TO THE

ECC.

EXHAUST FAN STATUSDI1

EXHAUST FAN START/STOPDO1

SPACE TEMPERATURE SENSOR (T-1)AI1

EXHAUST FAN STATUSDI1

EXHAUST FAN START/STOPDO1

EXHAUST FAN STATUSDI1

NOTES:

1. DDC CONTROLLER TO BE REPLACED.

NOTES:

1. DDC CONTROLLER TO BE REPLACED.

CONNECT NEW CONTROLLER TO

EXISTING ELECTRICAL SERVICE.

NOTES:

1. DDC CONTROLLER TO BE REPLACED.

CONNECT NEW CONTROLLER TO

EXISTING ELECTRICAL SERVICE.

EXHAUST

FAN

HOT WATER HEATING COIL BALANCING SCHEDULE

LABEL SERVES AHU SERVED CFM HEATING GPM

4-RH1 104A MALE LOCKERS 4-AHU5 500 2.2

4-RH2 103 STOR. 4-AHU5 500 0.8

FOUR PIPE FAN COIL UNITS BALANCING SCHEDULE

LABEL AREA SERVED AHU SERVED FAN CFM OA CFM

GPM

COOLING HEATING

A 120 LOUNGE 4-AH5 300 40 1.4 0.5

B 102 WORK AREA 4-AH5 600 40 3.0 0.5

C 102C OFFICE 4-AH5 300 20 1.4 0.5

D 102E OFFICE 4-AH5 200 20 0.9 0.5

E 102D OFFICE 4-AH5 300 20 1.4 0.5

F 102B OFFICE 4-AH5 300 20 1.4 0.5

G 102A OFFICE 4-AH5 200 20 0.9 0.5

H VESTIBULE 4-AH5 800 190 3.6 1.0

I 101 CONFERENCE CLASSROOM 4-AH5 600 190 3.6 1.0

J 101 CONFERENCE CLASSROOM 4-AH5 800 190 3.6 1.0

K 101 CONFERENCE CLASSROOM 4-AH5 800 190 3.6 1.0