36E77619R0086-014.pdf

CONFORMED CONSTRUCTION

DOCUMENTS

AFMS

M

T

T

H

CO2

P

NAN

UPS

NAC

DWP

FE

T

VFDVFDVFDVFD

DPS

LS

CM

AM

MM

R

CS

CT

POS-D

SYMBOL DESCRIPTION DESIGNATION SERVICE

AIR FLOW MEASURING STATION A-EA

A-MOA

A-OA

A-RA

A-RLF

A-SA

EXHAUST AIR

MINIMUM OUTSIDE AIR

OUTSIDE AIR

RETURN AIR

RELIEF AIR

SUPPLY AIR

DEVICE LEGEND - DUCTWORK

AUTOMATIC CONTROL DAMPER

WITH ELECTRIC ACTUATOR

D-AD

D-BP

D-BT

D-DA

D-EISO

D-ISO

D-MDOA

D-MNOA

D-MOA

D-MXOA

D-OA

D-RA

D-RISO

D-RLF

D-SISO

D-UISO

D-2P

DSM-SA

DSM-RA

FSD-SA

FSD-RA

D-OA/RLF

D-VAV

GENERAL

BY-PASS / BLEED

BUBBLE TIGHT DAMPER

DISCHARGE AIR

EXHAUST FAN ISOLATION

ISOLATION

MIDDLE OUTSIDE AIR DAMPER

MINIMUM OUTSIDE AIR DAMPER

MINIMUM OUTSIDE AIR

MAXIMUM OUTSIDE AIR DAMPER

OUTSIDE AIR

RETURN AIR

RETURN FAN ISOLATION

RELIEF AIR

SUPPLY FAN ISOLATION

UNIT ISOLATION

2 POSITION / OPEN-CLOSED

SMOKE DAMPER / SUPPLY AIR

SMOKE DAMPER / RETURN AIR

FIRE SMOKE DAMPER / SUPPLY AIR

FIRE SMOKE DAMPER / RETURN AIR

OUTSIDE AIR RELIEF DAMPER

VAV DAMPER

DAMPER END SWITCH DES DAMPER END SWITCH

TEMPERATURE SENSOR

(AVERAGING)

TEMPERATURE SENSOR

(DUCT)

T-CC

T-DA

T-DP

T-EA

T-EWL

T-MA

T-OA

T-PHT

T-RA

T-SA

COOLING COIL LEAVING AIR

DISCHARGE AIR

DEW POINT

EXHAUST AIR

ENTHALPY WHEEL LEAVING AIR TEMPERATURE

MIXED AIR TEMPERATURE

OUTSIDE AIR TEMPERATURE

PREHEAT COIL LEAVING AIR TEMPERATURE

RETURN AIR TEMPERATURE

SUPPLY AIR TEMPERATURE

HUMIDITY SENSOR H-DA

H-HL

H-RA

DISCHARGE AIR HUMIDITY

HUMIDITY HIGH LIMIT

RETURN AIR HUMIDITY

CARBON DIOXIDE SENSOR (CO2) CO2-OA

CO2-RA

CARBON DIOXIDE - OUTSIDE AIR

CARBON DIOXIDE - RETURN AIR

SMOKE DETECTOR SD-RA

SD-SA

SMOKE DETECTOR - RETURN AIR

SMOKE DETECTOR - SUPPLY AIR

PRESSURE SENSOR PORT D-DAHL

P-DALL

P-DASP

P-DP-A

P-DP-D

P-EASP

P-EAHL

P-EALL

P-RAHL

P-RALL

P-SAHL

P-SALL

P-RASP

P-RFSP

P-SASP

P-VPS

DISCHARGE AIR / HIGH LIMIT

DISCHARGE AIR / LOW LIMIT

DISCHARGE AIR / STATIC PRESSURE

DIFFERENTIAL PRESSURE - ANALOG

DIFFERENTIAL PRESSURE - DIGITAL

EXHAUST AIR / STATIC PRESSURE

EXHAUST AIR / HIGH LIMIT

EXHAUST AIR / LOW LIMIT

RETURN AIR / HIGH LIMIT

RETURN AIR / LOW LIMIT

SUPPLY AIR / HIGH LIMIT

SUPPLY AIR / LOW LIMIT

RETURN AIR / STATIC PRESSURE

RELIEF AIR / STATIC PRESSURE

SUPPLY AIR / STATIC PRESSURE

VELOCITY PRESSURE SENSOR

AIR FLOW SWITCH AFS DUCTWORK AIR FLOW SWITCH

ATC LEGEND

ALM GENERAL ALARM / FAULT

AI ANALOG INPUT

AO ANALOG OUTPUT

ATC AUTOMATIC TEMPERATURE CONTROLS

BAS BUILDING AUTOMATION SYSTEM

CM FIRE ALARM CONTROL MODULE

CT CURRENT TRANSDUCER

DDC DIRECT DIGITAL CONTROL SYSTEM

DDCP DIRECT DIGITAL CONTROL PANEL

DI DIGITAL INPUT

DO DIGITAL OUTPUT

EF EXHAUST FAN

FAS FIRE ALARM SYSTEM

G-MON GAS MONITOR

HW HARD WIRED CONNECTION

IND INDUCTION LAMP

MCC MOTOR CONTROL CENTER

MD-I MODE SELECT INPUT

MD-O MODE SELECT OUTPUT

MM FIRE ALARM MONITOR MODULE

MR MANUAL RESET

NET NETWORK CONNECTION TO ATC SYSTEM

N.C NORMALLY CLOSED

N.O NORMALLY OPEN

PC PROGRAMMABLE CONTROLLER

PHX PHOENIX CONTROLLER

PHC PREHEAT COIL

RES SETPOINT RESET

RHC REHEAT COIL

RF RETURN FAN

SPD-C VFD SPEAD CONTROL

ST / ST START / STOP

STS STATUS

SF SUPPLY FAN

TEC TERMINAL EQUIPMENT CONTROLLER

VD VOLUME DAMPER

FAN

PUMP

STEAM TRAP

HUMIDIFIER

VARIABLE FREQUENCY DRIVE

UNITARY APPLICATION CONTROLLER

NETWORK APPLICATION NODES

NETWORK APPLICATION CONTROLLER

DEW POINT SENSOR DWP-EA

DWP-OA

DWP-RA

DWP-SA

DEW POINT - EXHAUST AIR

DEW POINT - OUTSIDE AIR

DEW POINT - RETURN AIR

DEW POINT- SUPPLY AIR

UNINTERRUPTIBLE POWER SOURCE BAT-L BATTERY LOW ALARM

H

UAC

SW

FLOW ELEMENT

FE-EA

FE-HA

FE-RA

FE-SA

EXHAUST AIR FLOW

HOOD AIR FLOW

RETURN AIR FLOW

SUPPLY AIR FLOW

TEMPERATURE SENSOR

(AVERAGING)

T-LTD LOW TEMPERATURE DETECTOR (FREEZE-STAT)

ROOM SWITCH - HARDWIRE

2-WAY ISOLATION VALVE

(24V / 120V)

MD

MANUAL DAMPER

MOTOR CONTROL CENTER (STATUS)MCC

T-SW AQUASTAT

MAUAL/BUTTERFLY ISOLATION

VALVE

FIN TUBE RADIATION (FTR)

CM

CM

MM

FIRE OVERRIDE ON

FIRE OVERRIDE OFF

FAN STATUS FEEDBACK

FIRE ALARM

HOA

T ROOM TEMPERATURE - 24V/120V

DEVICE LEGEND - MISCELLANEOUS

SYMBOL DESCRIPTION DESIGNATION SERVICE

MOTOR CONTROL CENTER (NO STATUS)

M

MD

MOTORIZED DAMPER

(24V / 120V)

MOTOR CONTROL CENTER

MOTOR CONTROL CENTER

ST/ST

ST/ST & CS

DIFFERENTIAL PRESSURE SWITCH P-DPS DIFFERENTIAL PRESSURE SWITCH

LAB VALVE

LV-EA

LV-HA

LV-SA

LAB VALVE - EXHAUST AIR

LAB VALVE - HOOD AIR

LAB VALVE - SUPPLY AIR

FUME HOOD

FH-SS

FH-A

FH-F

FUME HOOD SASH HEIGHT SENSOR

FUME HOOD ALARM

FUME HOOD AIR FLOW

REFER TO LAB

SHEETS

MOTOR CONTROL CENTER (STATUS -ECM)MCC- ECM MOTOR CONTROL CENTER - ECM SPD-C & CS

CHILLER

RES

ALM

NET

SETPOINT RESET

ALARM

NETWORK CONNECTION TO ATC

REFER TO LAB

SHEETS

UNION

DAMPER END SWITCH

GENERAL RELAY (ON/OFF)GENERAL RELAY GR

ELECTRICAL LIGHT SENSORLIGHT SENSOR LS

ALARM MODULE ALM ALARM MODULE

FIRE CONTROL MODULE CM CONTROL MODULE

FIRE MONITOR MODULE CM MONITOR MODULE

ELECTRIC RELAY ER ELECTRIC RELAY

STATUS INPUT ST STATUS

CS

CT

CURRENT SWITCH

CURRENT TRANSDUCER

CURRENT SWITCH

CURRENT TRANSDUCER

DAMPER POSITION POS-D DAMPER POSITION FEEDBACK

1. Contractor shall provide complete DDC automatic temperature control system compatible with the existing Metasys Building Management System by Johnson Controls, Inc. All HVAC system and ancillary components shall be controlled by the existing Metasys Building Management System. Final connection of new equipment to the existing Metasys Building Management System shall be made by a company and technicians fully qualified and certified by Johnson Controls, Inc. to program, install, adjust, repair, certified by Johnson Controls, Inc. to program, install, adjust, repair, maintain, modify, or otherwise manipulate the Metasys Building Management System by Johnson Controls, Inc. Current company and technician qualifications and certifications to program, install, adjust, repair, maintain, modify, or otherwise manipulate the Johnson Controls Metasys system must be maintained throughout the construction of the project including any extensions of the construction performance period. If the Contractor utilizes the services of a subcontractor other than Johnson Controls to perform this work, the Contractor shall provide the VA, via submittal, copies of factory training certificates for each technician working on the Providence VAMC Metasys system prior to commencement of any controls work. The Providence VAMC will review the certifications as part of the submittal process. Contractor shall carry the cost of this work in their bid.

2. All DDC controls shall be provided by the contractor and shall be Bacnet Metasys controls by Johnson Controls for AHUs, chillers, fans, FCUs, VAVs, circulating pumps, control valves, motorized dampers, and any other equipment or accessories as noted in the drawings and specifications.

3. All controls shall have occupied and unoccupied functions.

4. All set points shall be fully adjustable.

5. All monitored points, including status (ON, OFF, FAILED) and any alarms shall display at the DDC workstation(s).

6. “Cooling Mode” shall be defined as any time the outside air temperature is above 50°F (adjustable) and a call for cooling exists from any associated piece of equipment. “Cooling Mode” shall extend to 1 hour beyond the call for cooling is satisfied to prevent short cycling.

7. “Heating Mode” shall be defined as any time the outside air temperature is below 68°F (adjustable) and a call for heating exists from any associated piece of equipment.

8. Where 100% redundant motorized equipment is installed, the two (or more) pieces of equipment shall alternate operation on an adjustable, equal run-time basis. The DDC system shall display cumulative run-time of each unit. If one unit fails, the other unit shall start automatically and the DDC system shall generate an alarm signal.

9. HVAC system shall be designed in accordance with the latest version of the VA HVAC Design Manual and the latest versions of those standards referenced within that manual. The designer is responsible for verification of the latest version.

10. All individual room environmental parameters shall be designed and set in accordance with the latest version of the VA HVAC Design Manual.

11. All equipment shall be Energy Star certified and maximum efficiency.

Control Drawing General Notes:

Project TitleDrawing Title

Approved:

VA FORM 08 - 6231

A

Office of Construction and Facilities Management

U.S. Department of Veterans Affairs

B

C

D

E

F

A

B

C

D

E

F

21 4 5 6 7 8 9 10

Phase

ARCHITECT STAMPCONSULTANTS

321 4 5 6 7 8 9 10

CIVIL:

Pare Corporation 8 Blackstone Valley Place Lincoln, RI 02865

Phone: 401-334-4100 Facsimile: 401-334-4108

CONFORMED CONSTRUCTION DOCUMENTS

290 Congress St., 5th Floor Boston, MA 02210

Phone: 617-895-1000

VA Medical Center Providence, RI Expand Bldg. 1 to Replace Hemodialysis Phase 1

Providence, RI

650-342

Project Director

FULLY SPRINKLERED

STRUCTURAL:

Odeh Engineers 1223 Mineral Springs Ave.

Providence, RI 02904

Phone: 401-724-1771 Facsimile: 401-724-1981

MEP/FP:

BR+A Consulting Engineers, LLC 10 Guest St. 4th Floor Boston, MA 02135

Phone: 617-254-0016 Facsimile: 617-924-9339

COST:

DG Jones International, Inc.

3 Baldwin Green Common, Suite 202 Woburn, MA 01801

Phone: 781-982-3131 Facsimile: 781-932-3199

Location

Issue Date Checked Drawn

Project Number

Building Number

Drawing Number

J J o b s \P

C .J

\B

A S

\B A

S M

A S

T E

R D

IA

G

R A

M S

.r v t

/5

/2

:2 :1

P

M

MI.801

CONTROLS LEGEND

11/09/2018 KP EG

100% CONSTRUCTION

DOCUMENTS

Number: Revisions: Date:

H

CO2

T

SMD

RS

RMP

CO

MS

NO2

OS

T

M

DWP

POS

P

OCC

ALM

SW

PC

M

SYMBOL DESCRIPTION DESIGNATION SERVICE

DEVICE LEGEND - ROOM / SPACE SENSORS

HUMIDITY ROOM / SPACE H-RM

H-OA

ROOM / SPACE

OUTSIDE AIR

CARBON DIOXIDE (CO2) ROOM / SPACE CO2-RM ROOM / SPACE

TEMPERATURE ROOM / SPACE T-RM

T-OA

ROOM / SPACE

OUTSIDE AIR

SMOKE DETECTOR ROOM / SPACE SD-RM ROOM / SPACE

RS-M

RS-W

RS-ALM

REFRIGERANT SENSOR MONITOR (PPM)

REFRIGERANT SENSOR - LOW WARNING

REFRIGERANT SENSOR - HIGH ALARM

REFRIGERANT SENSOR

ROOM PRESSURE MONITOR RMP

CARBON MONOXIDE CO ROOM / SPACE

OXYGEN SENSOR

NITROGEN DIOXIDE

MOISTURE SENSOR MS

NO2

OS

ROOM / SPACE

ROOM / SPACE

ROOM / SPACE

SYMBOL DESCRIPTION DESIGNATION SERVICE

2-WAY AND 3-WAY CONTROL

VALVE WITH ELECTRIC

ACTUATOR

V V-2P

V-CHWD

V-CLG

V-DP

V-HRC

V-HUM

V-HW

V-PH

V-RH

V-RAD

V-RDP

V-STM

GENERAL VALVE

2 POSITION VALVE

CHILLED WATER DENY CONTROL VALVE

COOLING COIL VALVE

DIFFERENTIAL PRESSURE CONTROL

HEAT RECOVERY COIL VALVE

HUMIDIFIER VALVE

HOT WATER VALVE

PREHEAT COIL VALVE

REHEAT COIL VALVE

RADIATION VALVE

RADIANT PANEL VALVE

STEAM VALVE

DEVICE LEGEND - PIPING

ISOLATION VALVE V-ISO ISOLATION VALVE - OPEN/CLOSE

DIFFERENTIAL PRESSURE SENSOR P-DP-A

P-DP-D

DIFFERENTIAL PRESSURE - ANALOG

DIFFERENTIAL PRESSURE - DIGITAL

TEMPERATURE SENSOR AND WELL T-CHE

T-CHL

T-CHS

T-CHR

T-CTB

T-CWS

T-CWR

T-PHE

T-PHL

T-PCHR

T-PCHS

T-SW

T-HWS

T-HWR

T-HTWS

T-HTWR

CHILLED WATER ENTERING

CHILLED WATER LEAVING

CHILLED WATER SUPPLY

CHILLED WATER RETURN

COOLING TOWER BASIN TEMPERATURE

CONDENSER WATER SUPPLY

CONDENSER WATER RETURN

HOT WATER / GLYCOL ENTERING

HOT WATER / GLYCOL LEAVING

PROCESSED CHILLED WATER RETURN

PROCESSED CHILLED WATER SUPPLY

TEMPERATURE HIGH / LOW SWITCH

HOT WATER SUPPLY

HOT WATER RETURN

HIGH TEMPERATURE WATER SUPPLY

HIGH TEMPERATURE WATER RETURN

FLOW METER

FM-CHW

FM-H

FM-STM

CHILLED WATER

HYDRONIC SYSTEM

STEAM

HYDRONIC FLOW SWITCH HFS PIPING HYDRONIC FLOW SWITCH

DEW POINT SENSOR DWP-RM DEW POINT - ROOM TEMPERATURE

ROOM / SPACE

- POS VALVE POSITION INDICATOR

SYSTEM PRESSURE P-SP

P-RP

SUPPLY PRESSURE

RETURN PRESSURE

OCCUPANCY SENSOR OCC ROOM / SPACE

CT VIBRATION SWITCH

CT WATER LEVEL SENSOR

VBS

WLS

VIBRATION SWITCH

WATER LEVEL SENSOR

BUTTERFLY VALVE V-CTBP COOLING TOWER BYPASS

MOISTURE ALARM MA MOISTURE ALARM

ALARM ALM GENERAL ALARM

SWITCH SW SWITCH - DIGITAL INPUT

PARTICLE COUNTER PC ROOM / SPACE

DEVICE LEGEND - MISCELLANEOUS PLUMBING & ELECTRICAL

SYMBOL DESCRIPTION DESIGNATION SERVICE

STATUS INPUT ST STATUS

FLOW PULSE METER FM-H-P HYDRONIC PULSE SYSTEM

LEVEL SENSOR LVL-S LEVEL SENSOR (TANK FUEL LEVEL)

Project TitleDrawing Title

Approved:

VA FORM 08 - 6231

A

Office of Construction and Facilities Management

U.S. Department of Veterans Affairs

B

C

D

E

F

A

B

C

D

E

F

21 4 5 6 7 8 9 10

Phase

ARCHITECT STAMPCONSULTANTS

321 4 5 6 7 8 9 10

CIVIL:

Pare Corporation 8 Blackstone Valley Place Lincoln, RI 02865

Phone: 401-334-4100 Facsimile: 401-334-4108

CONFORMED CONSTRUCTION DOCUMENTS

290 Congress St., 5th Floor Boston, MA 02210

Phone: 617-895-1000

VA Medical Center Providence, RI Expand Bldg. 1 to Replace Hemodialysis Phase 1

Providence, RI

650-342

Project Director

FULLY SPRINKLERED

STRUCTURAL:

Odeh Engineers 1223 Mineral Springs Ave.

Providence, RI 02904

Phone: 401-724-1771 Facsimile: 401-724-1981

MEP/FP:

BR+A Consulting Engineers, LLC 10 Guest St. 4th Floor Boston, MA 02135

Phone: 617-254-0016 Facsimile: 617-924-9339

COST:

DG Jones International, Inc.

3 Baldwin Green Common, Suite 202 Woburn, MA 01801

Phone: 781-982-3131 Facsimile: 781-932-3199

Location

Issue Date Checked Drawn

Project Number

Building Number

Drawing Number

J J o b s \P

C .J

\B

A S

\B A

S M

A S

T E

R D

IA

G

R A

M S

.r v t

/5

/2

:2 :1

P

M

MI.802

CONTROLS LEGEND

11/09/2018 KP EG

100% CONSTRUCTION

DOCUMENTS

Number: Revisions: Date:

T

T T

M

P

M P

H

CO2

P P

M

A F

M S

P

P P P

T

VFD 2QTY:

VFD 2QTY:VFDVFDVFDVFDVFDVFDVFDVFD

VFDVFDVFDVFDVFDVFDVFDVFD

P

H

2QTY:

A-SA

A F

M S

A F

M S

2 QTY:

A-RA

A F

M S

A F

M S

H

T

P T

POS

POS-D

POS-D

POS-D

M A

F M

S

POS-D

M

T

H

M

T-MA

V-CLG

T-CC

T-PHT

AHU BOUNDARY

SD-SA

SUPPLY AIR

P-DASP

RETURN AIR

TO MECHANICAL

ROOM

D-RLF P-RALL H-RA

CO2-RA

P-DP-A

A F

T E

R F

IL

T

E R

P R

E -F

IL

T

E R

P R

E H

E A

T C

O

IL

C O

O L

IN

G C

O

IL

P-DP-A

OUTSIDE AIR

PLENUM

D-MNOA

A-MOA

P-RFSP D-RA

P-DALL P-DAHL P-SAHL

NAC

BACNET IP

ETHERNET

GHWS

GHWR

T-LTD

CHWS

CHWR

CONTROL

PANEL

ST/STDO

SPD-CAO

CTAI

ALMDI

NET

ST/STDO

SPD-CAO

CTAI

ALMDI

NET

F

IN

A L F

IL

T

E R

P-DP-A

V-HUM

H

S T

E A

M C

O N

D E

N S

A T

E

S T

E A

M S

U P

P L Y

T-SW

V-ISO

AFS

H-HL

T-OA

H-OA

P-RASP

D.P.

V-PH

SD-RA

T-RA

ST

ST

ST

ST

ST

ST

ST

ST

D-MXOA

A-OA

D-ISO

DES

DES

T-SA

H-DA

D-ISO

DES

DES

Project TitleDrawing Title

Approved:

VA FORM 08 - 6231

A

Office of Construction and Facilities Management

U.S. Department of Veterans Affairs

B

C

D

E

F

A

B

C

D

E

F

21 4 5 6 7 8 9 10

Phase

ARCHITECT STAMPCONSULTANTS

321 4 5 6 7 8 9 10

CIVIL:

Pare Corporation 8 Blackstone Valley Place Lincoln, RI 02865

Phone: 401-334-4100 Facsimile: 401-334-4108

CONFORMED CONSTRUCTION DOCUMENTS

290 Congress St., 5th Floor Boston, MA 02210

Phone: 617-895-1000

VA Medical Center Providence, RI Expand Bldg. 1 to Replace Hemodialysis Phase 1

Providence, RI

650-342

Project Director

FULLY SPRINKLERED

STRUCTURAL:

Odeh Engineers 1223 Mineral Springs Ave.

Providence, RI 02904

Phone: 401-724-1771 Facsimile: 401-724-1981

MEP/FP:

BR+A Consulting Engineers, LLC 10 Guest St. 4th Floor Boston, MA 02135

Phone: 617-254-0016 Facsimile: 617-924-9339

COST:

DG Jones International, Inc.

3 Baldwin Green Common, Suite 202 Woburn, MA 01801

Phone: 781-982-3131 Facsimile: 781-932-3199

Location

Issue Date Checked Drawn

Project Number

Building Number

Drawing Number

J J o b s \P

C .J

\B

A S

\B A

S M

A S

T E

R D

IA

G

R A

M S

.r v t

/5

/2

:2 :1

P

M

MI.803

MIXED AIR AHU DIAGRAM AND POINTS

LIST FOR AHU-1

11/09/2018 KP EG

100% CONSTRUCTION

DOCUMENTS

Air Handling Unit - Mixed Air Fan Array Glycol Preheat, Cooling with Humidification

KEY NOTES

LCOATE STATIC PRESSURE SENSOR 2/3 OF THE WAY DOWN THE

LONGUST DUCT RUN. SENSOR SHALL BE HARDWIRED TO AHU

CONTROLLER. SHARED POINT OVER THE NETWORK SHALL NOT BE

ALLOWED.

THE BAS CONTRACTOR SHALL INSTALL A DIFFERENTIAL PRESSURE

SWITCH ACROSS THE FAN FOR STATUS FEEDBACK TO THE FIRE ALARM

MONITOR MODULE FOR POSITIVE PROOF OF FAN OPERATION.

Air Handling Unit- Mixed Air Fan Array Hot Water Preheat, Cooling with Humidification Control Points List

BAS_TYPE BAS_SERVICE BAS_SERVICE_TAG ALM_LO ALM_HI

ALM_OFF /

NORMAL COMMENTS

AO PREHEAT COIL VALVE V-PH

AO RELIEF AIR DAMPER D-RLF

AO RETURN AIR DAMPER D-RA

AO VARIABLE FREQUENCY DRIVE SPD-C SUPPLY FAN 1

AO VARIABLE FREQUENCY DRIVE SPD-C SUPPLY FAN 2

AO VARIABLE FREQUENCY DRIVE SPD-C RETURN FAN 1

AO VARIABLE FREQUENCY DRIVE SPD-C RETURN FAN 2

BI DAMPER END SWITCH DES RETURN ISO DAMPER OPEN END SWITCH - HARDWIRE INTERLOCK

BI DAMPER END SWITCH DES RETURN ISO DAMPER CLOSED END SWITCH

BI DAMPER END SWITCH DES SUPPLY ISO DAMPER OPEN END SWITCH - HARDWIRE INTERLOCK

BI DAMPER END SWITCH DES SUPPLY ISO DAMPER CLOSED END SWITCH

BI DISCHARGE AIR / HIGH PRESSURE LIMIT P-DAHL X UNIT STATIC SAFETY - HARDWIRE INTERLOCK

BI DISCHARGE AIR / LOW PRESSURE LIMIT P-DALL X X UNIT STATIC SAFETY - HARDWIRE INTERLOCK

BI DUCTWORK AIR FLOW SWITCH AFS

BI LOW TEMPERATURE T-LTD X HARDWIRE INTERLOCK

BI RETURN AIR SD-RA

BI RETURN AIR / LOW LIMIT P-RALL DUCTWORK STATIC SAFETY - HARDWIRE INTERLOCK

BI STATUS INPUT ST RF-1 VFD HOA SWITCH AUTO POSITION STATUS

BI STATUS INPUT ST RF-1 VFD HOA SWITCH HAND POSITION STATUS

BI STATUS INPUT ST RF-2 VFD HOA SWITCH AUTO POSITION STATUS

BI STATUS INPUT ST RF-2 VFD HOA SWITCH HAND POSITION STATUS

BI STATUS INPUT ST SF-1 VFD HOA SWITCH AUTO POSITION STATUS

BI STATUS INPUT ST SF-1 VFD HOA SWITCH HAND POSITION STATUS

BI STATUS INPUT ST SF-2 VFD HOA SWITCH AUTO POSITION STATUS

BI STATUS INPUT ST SF-2 VFD HOA SWITCH HAND POSITION STATUS

BI SUPPLY AIR SD-SA X HARDWIRE INTERLOCK

BI SUPPLY AIR / HIGH PRESSURE LIMIT P-SAHL X DUCTWORK STATIC SAFETY - HARDWIRE INTERLOCK

BI VARIABLE FREQUENCY DRIVE ALM X SUPPLY FAN 1

BI VARIABLE FREQUENCY DRIVE ALM X SUPPLY FAN 2

BI VARIABLE FREQUENCY DRIVE ALM X RETURN FAN 1

BI VARIABLE FREQUENCY DRIVE ALM X RETURN FAN 2

BO ISOLATION DAMPER D-ISO

BO ISOLATION DAMPER D-ISO

BO ISOLATION VALVE - OPEN / CLOSE V-ISO SUMMER/WINTER VALVE

BO VARIABLE FREQUENCY DRIVE ST/ST SUPPLY FAN 1

BO VARIABLE FREQUENCY DRIVE ST/ST SUPPLY FAN 2

BO VARIABLE FREQUENCY DRIVE ST/ST RETURN FAN 1

BO VARIABLE FREQUENCY DRIVE ST/ST RETURN FAN 2

Grand total: 74

Air Handling Unit- Mixed Air Fan Array Hot Water Preheat, Cooling with Humidification Control Points List

BAS_TYPE BAS_SERVICE BAS_SERVICE_TAG ALM_LO ALM_HI

ALM_OFF /

NORMAL COMMENTS

AI CARBON DIOXIDE - RETURN AIR CO2-RA

AI COOLING COIL LEAVING AIR

TEMPERATURE

T-CC X X

AI DAMPER POSITION POS-D RELIEF AIR DAMPER POSITION

AI DAMPER POSITION POS-D RETURN AIR DAMPER POSITION

AI DAMPER POSITION POS-D MINIMUM OUTSIDE AIR DAMPER POSITION

AI DAMPER POSITION POS-D MAXIMUM OUTSIDE AIR DAMPER POSITION

AI DIFFERENTIAL PRESSURE - ANALOG P-DP-A X SUPPLY AIR PRE-FILTER

AI DIFFERENTIAL PRESSURE - ANALOG P-DP-A X SUPPLY AIR AFTER FILTER

AI DIFFERENTIAL PRESSURE - ANALOG P-DP-A X FINAL FILTER

AI DISCHARGE / STATIC PRESSURE P-DASP X X

AI DISCHARGE AIR H-DA X X

AI HUMIDITY HIGH LIMIT H-HL X

AI MINIMUM OUTSIDE AIR FLOW A-MOA MIN. OUTSIDE AIR DAMPER

AI MIXED AIR TEMPERATURE T-MA X X

AI OUTSIDE AIR H-OA

AI OUTSIDE AIR T-OA

AI OUTSIDE AIR FLOW A-OA MAX. OUTSIDE AIR DAMPER

AI POSITION INDICATOR POS

AI PREHEAT COIL LEAVING AIR T-PHT X X

AI RELIEF AIR / STATIC PRESSURE P-RFSP X X

AI RETURN AIR H-RA

AI RETURN AIR / STATIC PRESSURE P-RASP

AI RETURN AIR FLOW A-RA RETURN FAN 1

AI RETURN AIR FLOW A-RA RETURN FAN 2

AI RETURN AIR TEMPERATURE T-RA

AI SUPPLY AIR FLOW A-SA SUPPLY FAN 1

AI SUPPLY AIR FLOW A-SA SUPPLY FAN 2

AI SUPPLY AIR TEMPERATURE T-SA X X

AI VARIABLE FREQUENCY DRIVE CT X SUPPLY FAN 1 - STATUS

AI VARIABLE FREQUENCY DRIVE CT X SUPPLY FAN 2 - STATUS

AI VARIABLE FREQUENCY DRIVE CT X RETURN FAN 1 - STATUS

AI VARIABLE FREQUENCY DRIVE CT X RETURN FAN 2 - STATUS

AO COOLING COIL VALVE V-CLG

AO HUMIDIFIER VALVE V-HUM

AO MAXIMUM OUTSIDE AIR DAMPER D-MXOA

AO MINIMUM OUTSIDE AIR DAMPER D-MNOA NOTE: SINGLE TUNNEL FAN ARRAY SET UP BASED ON

QTY: 2 FANS/VFD, AFMS,DAMPER, AND DES.

Number: Revisions: Date:

1.1 Air Handling Unit: Mixed Air Fan Array Glycol Preheat, Cooling with Humidification

A. General

1. Programs and sequences indicated or implied herein shall be provided.

2. Provide all I/O points indicated on the control diagram and as required to accomplish the sequence of operation.

3. All wire terminals, devices, gauges and wires shall be identified within the panels.

4. Dampers and end switches shall be interlocked such that they will operate per the sequence below in either auto, hand or off on the VFD/MCC.

5. All points shall be able to integrate to all trends, totalizations, etc., as applicable.

6. All alarms as indicated on the diagrams in the sequence of operation shall be generated to the appropriate server/workstations.

B. Start/Stop

1. The unit normally operates continuously with remotely capability for start/stop/scheduling functions.

2. The H.O.A. switch shall be kept in the "auto" position. "Hand" and "Off" positions shall be utilized for maintenance purposes. When the air handling unit is off, the outside damper and relief damper shall be closed with the return damper being open.

3. When the unit receives a start command, the outside damper and relief damper shall open to its minimum position with return damper tracking in opposite action. The supply and return fans shall start at minimum speed.

4. Upon confirmation the supply and return fans are running; the supply and return fans respectively shall modulate as indicated below for control.

5. If after a 60 second delay (adjustable) either of the fans does not provide status or any VFD provides an alarm condition, then the fans will be shutdown; the dampers will index to their off positions. An alarm will be generated and the unit will be locked out in software.

C. Airflow Control

1. Upon start-up of the supply fans and return fans, the BAS panel receives a static pressure signal for both fans systems.

The speed of the supply fan and return fans shall increase their respective system static pressure to maintain setpoint at the duct mounted static pressure sensors.

a. The supply air fan speed shall be controlled to maintain the desired duct static pressure of 1.5 inches of water gauge minimum (adjustable).

b. The return air fan speed shall be controlled to maintain the desired duct static pressure of 1.5 inches of water gauge minimum (adjustable).

2. The outside air damper and relief air damper shall modulate in unison with the return damper modulating in opposite action to provide a minimum outside air flow setpoint as indicated on AHU schedules (adjustable).

3. At no point shall the ductwork upstream of the relief air damper be negatively pressurized. The relief air ductwork pressure differential to atmosphere shall override the relief damper control to modulate the relief damper closed to maintain a slightly positive pressure, minimum +0.1"wc (adjustable).

4. If either the supply or return fans shutdown, both fans shall shut down.

D. Temperature Control

1. The discharge temperature sensor shall control the cooling and heating coil control valves, the outside air, return air and relief air dampers in sequence to maintain a discharge air temperature setpoint of 55 DegF (adj.) and a discharge air dewpoint setpoint of 55 DegF (adj.). At no time shall the cooling and heating control valves be open at the same time during normal operation.

2. The outside air, return and relief air dampers will be controlled via enthalpy calculation.

3. Economizer Mode

a. If the return air enthalpy is greater than the outside air enthalpy then the unit will be in economizer control.

b. On a rise in discharge air temperature above setpoint the outside and relief air dampers will modulate to 100% open with the return air damper modulating in opposite action. The minimum and maximum outside air dampers shall modulate open in a staged fashion in that order. On a further rise in temperature, the cooling coil control valve will be modulated open. On a drop in discharge temperature, the reverse sequence shall occur.

4. Mechanical Only Cooling

a. If the outside air enthalpy is greater than the return air enthalpy then the economized mode will be locked out and the outside, return and relief air dampers will position for minimum outside are flow.

b. On a rise in discharge air temperature above setpoint the cooling coil control valve will be modulated open. On a drop in discharge air temperature, the reverse sequence shall occur.

5. Heating

a. On a drop in discharge air temperature below setpoint the preheat control valve will be modulated open to maintain setpoint. On a rise in discharge air temperature, the reverse shall occur.

b. When the AHU is off, if the preheat coil leaving air temperature falls below 50 DegF (adj.), the preheat control valve will be modulated open to maintain the preheat coil leaving air setpoint of 50 DegF (adj.).

6. Dehumidification

a. When the discharge air dewpoint (calculated by the temperature and humidity sensors) rises above the discharge air dewpoint setpoint, then the cooling coil control valve will modulate open. On a drop in discharge air dewpoint temperature the reverse shall occur.

7. At an outside air temperature of 48 DegF (adj.) or lower, the cooling coil valve shall be shut. The cooling coil control valve shall remain closed when the chiller plant is offline.

8. A mixed air low limit control shall override the discharge control sequence if the mixed air temperature is less than 45

DegF (adj.). During cold weather startup of the air handling unit the mixed air low limit sequence shall also prevent nuisance tripping of the low limit temperature thermostats.

E. Humidification

1. Provide an electronic humidistat and interlock to steam control valves so that the humidifier is modulated, as required, to maintain the desired relative humidity in the supply ductwork, subject to the high limit reset action of the duct humidistat

(provided by the ATC Contractor). The high limit sensor shall override the output to the humidifier control valve to limit the supply duct relative humidity to 85%\U+00A0RH (adj.). When there is no flow, the air flow switch (provided by the

ATC Contractor) shall close the valve by spring action.

2. The return air humidity shall be controlled by providing a supply air humidity control setpoint which is reset based on the return air humidity setpoint of 30% RH (adj.). The supply humidity setpoint shall provide an initial reset range of 45% to

65% (adj.). This shall be reset accordingly based of the return air humidity requirement. At no time will the supply humidity setpoint rise above 80% RH (adj.).

3. The humidifier control valve shall not operate during dehumidification mode. During the summer months the steam isolation valve to the humidifier shall be closed. During the winter months the steam isolation valve shall be open to allow for humidification control.

F. Filters

1. There shall be an analog differential pressure sensor for each individual filter bank within the AHU.

2. An alarm shall be generated when the pressure across the filter bank rises above the dirty filter setpoint as indicated on the AHU filter schedules (adjustable).

G. Safety Interlocks

1. The high discharge static pressure safety located on the discharge of the supply fan in the unit housing shall be set as scheduled for 1"w.c. above the total pressure rating of the supply fan as indicated on the AHU schedule. The high suction static pressure safety located on the suction side of the supply fan in the unit housing shall be set as scheduled for 1"w.c. above the total pressure rating of the supply fan as indicated on the AHU schedule. The high discharge static pressure safety located in the discharge ductwork outside of the unit shall be set as scheduled for duct pressure class.

If any of the safeties pressure setting is exceeded the safety will trip and via hardwire interlock to the supply fans VFD's so the fans shall shutdown and dampers will index to their off positions. This safety shall operate in either hand or auto on the VFD's and shall be reset manually. If the supply fan is shutdown by safety the return fan shall also be shutdown.

2. The high suction static pressure safety located on the suction of the return fan shall be set for duct pressure class so when that pressure is exceeded the safety will trip and via hardwire interlock to the return fan VFD so the fan shall shutdown and the dampers shall index to their off positions. This safety shall operate in either hand or auto on the VFD and shall be reset manually. If the return fan is shutdown by safety the supply fan shall also be shutdown.

3. When smoke is detected by the supply duct smoke detector, the supply and return fans shall shut "off", the dampers shall index to their off positions and an alarm shall be generated. Supply and return fans shall restart and as noted above when the fire alarm circuit is reset.

4. Provide a series of low temperature thermostats (freeze stats) at the downstream section of each of the preheat coils which will stop the unit if the preheat discharge temperature falls below 38 DegF (adj.) and an alarm shall be generated.

The control valve shall modulate to maintain 50 DegF at the Preheat coil sensor.

H. Fan Failure and Restart Mode

1. Upon failure of an individual supply or return fan, that fan shall be shut down and an alarm shall be generated and it will be locked out in software.

2. Upon a software restart command which shall clear the software lockout, the failed fan shall start at minimum speed.

Once fan status has been proven the fan shall be placed in a ramp start routine for a 10 minute (adj.) duration. The operating fans shall modulate to maintain the static pressure setpoint while the failed fans ramps up in speed. The failed fan shall ramp up until the speed control matches the operating fans. At this point all fans shall control in unison and the ramp routine shall terminate.

3. Additional time shall be provided to fine tune this ramp routine for all fans during startup and checkout.

I. Energy Conservation Measures

1. Discharge Air Temperature Reset

a. There shall be a discharge air temperature setpoint reset routine. The reset routine shall always attempt to provide the highest discharge air temperature setpoint up to the maximum of 60 DegF. If any one of the criteria listed below is not met, then the reset routine shall reverse and ramp the setpoint down in the same fashion until the criteria is met.

b. If the criteria allows, the setpoint shall be increase in 0.5 DegF increments with the calculation for change occurring every 15 minutes (adj.). If the criteria is not met then the reset routine shall decrease the discharge temperature setpoint in the reverse fashion to and not below the base discharge air temperature setpoint.

c. Only the air terminal units served by the individual units shall be monitored for the basis of each AHU's calculations. The highest unit discharge temperature which is able to satisfy all normally operating zones will be determined as follows:

1) The discharge air dewpoint temperature shall not exceed the discharge air dewpoint setpoint.

2) The discharge air temperature will be increased by all normally operating zones have been satisfied for one hour and if all the air terminal unit cooling commands are less than 90%.

3) The discharge air temperature will be decreased if any normally operating zones are almost unsatisfied. For zones with air terminal units, the zone will be deemed almost unsatisfied if its cooling command is more than

95%.

4) Normally operating zones will be determined as follows: The BAS will poll the setpoints for each zone every

15 minutes and store that value until the next cycle. If the setpoint has been changed by more than 1 DegF, the zone will be labeled as not normal.

5) The operator will also have the ability to flag zones and disable it from the reset routine. A report will be generated weekly on all zones that have been disabled.

6) The BAS shall accumulate a list of zones that are almost unsatisfied and produce a weekly report listing these zones and the number of instances these zones were almost unsatisfied. This will allow the staff to investigate the zone and determine if airflow is choked or unsustainable loads have been placed in the zone.

a)If any VAV box cooling command reaches 100% for a 20 min duration a warning shall be generated and the reset routine shall reverse until all VAV box cooling commands are less than or equal to 85% (adj.). If two or more VAV boxes reach 100% for a 20 min (adj.) duration an alarm shall be generated and the reset routine shall reverse with the above mentioned temperature increments but with changes every 5 minutes (adj.) to the starting setpoint as scheduled and the reset routine shall be locked out in software.

A manual reset shall be provided on the system graphic to allow the user to enable the routine again after the problem has been corrected.

2. Static Pressure Reset

a. The supply VAV box damper position for all boxes serviced by this unit shall be monitored at 15 minute intervals

(adj.) to determine the ability to automatically reset the supply static pressure setpoint for optimization. If the damper position of the furthest open box is less than 85% (adj.), the supply static pressure setpoint shall be reduced by 0.1"w.c. (adj.). If the damper position of the furthest open box is greater equal to or greater than 94%

(adj.), the supply static pressure setpoint shall be increased by 0.1"w.c. (adj.). At no time should any boxes reach

100% open during the reset routine. If a box reaches 100% open a warning shall be generated. If two or more boxes reach 100% open an alarm shall be generated and the reset routine shall ramp the static pressure setpoint back to the starting static pressure setpoint over a 10 minute duration (adj.). The reset routine shall be disabled with a software lockout and will not resume until released by the operator.

1) The operator will also have the ability to flag VAV box and disable it from the reset routine. A report will be generated weekly on all VAV boxes that have been disabled.

3. Optimal Start/Stop

a. Regardless if the unit is determined to run continuously, in the event that a schedule is implemented the unit shall be programmed to provide an Optimal Start/Stop routine which shall automatically ramp the building temperatures for the Optimal start and stop times to conserve energy while maintaining space temperature setpoints. Where applicable this strategy shall include but not be limited to incorporating terminal unit override for zones specifically associated to this AHU to help implement this routine.

Project TitleDrawing Title

Approved:

VA FORM 08 - 6231

A

Office of Construction and Facilities Management

U.S. Department of Veterans Affairs

B

C

D

E

F

A

B

C

D

E

F

21 4 5 6 7 8 9 10

Phase

ARCHITECT STAMPCONSULTANTS

321 4 5 6 7 8 9 10

CIVIL:

Pare Corporation 8 Blackstone Valley Place Lincoln, RI 02865

Phone: 401-334-4100 Facsimile: 401-334-4108

CONFORMED CONSTRUCTION DOCUMENTS

290 Congress St., 5th Floor Boston, MA 02210

Phone: 617-895-1000

VA Medical Center Providence, RI Expand Bldg. 1 to Replace Hemodialysis Phase 1

Providence, RI

650-342

Project Director

FULLY SPRINKLERED

STRUCTURAL:

Odeh Engineers 1223 Mineral Springs Ave.

Providence, RI 02904

Phone: 401-724-1771 Facsimile: 401-724-1981

MEP/FP:

BR+A Consulting Engineers, LLC 10 Guest St. 4th Floor Boston, MA 02135

Phone: 617-254-0016 Facsimile: 617-924-9339

COST:

DG Jones International, Inc.

3 Baldwin Green Common, Suite 202 Woburn, MA 01801

Phone: 781-982-3131 Facsimile: 781-932-3199

Location

Issue Date Checked Drawn

Project Number

Building Number

Drawing Number

J J o b s \P

C .J

\B

A S

\B A

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A S

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MI.804

MIXED AIR AHU SEQUENCE OF

OPERATION

11/09/2018 KP EG

100% CONSTRUCTION

DOCUMENTS

Number: Revisions: Date:

P

P

P

P

VFDVFDVFDVFD

VFDVFDVFDVFD

1.1 Dual Exhaust Fan with Single Filter Box and Static Pressure Control

A. General

1. Programs and sequences indicated or implied herein shall be provided.

2. Provide all I/O points indicated on the control diagram and as required to accomplish the sequence of operation.

3. All wire terminals, devices, gauges and wires shall be identified within the panels.

4. Dampers and end switches shall be interlocked such that they will operate per the sequence below in either auto, hand or off on the VFD/MCC.

5. All points shall be able to integrate to all trends, totalizations, etc., as applicable.

6. All alarms as indicated on the diagrams in the sequence of operation shall be generated to the appropriate server/workstations.

B. Start/Stop

1. The unit normally operates continuously in a primary/standby strategy with remotely capability for start/stop/scheduling functions. The H.O.A. switch shall be kept in the "auto" position. "Hand" and "Off" positions shall be utilized for maintenance purposes. When the exhaust fans are off, the intake isolation damper shall be closed.

2. When the unit receives a start command, the primary fan shall be started against a closed isolation damper at minimum speed. Upon confirmation the exhaust fan is running via the current sensor, the isolation damper shall open. When the isolation dampers proves open via the end switch, the exhaust fan shall modulate as indicated below for control.

3. The runtime for each fan shall be totalized by the BAS system. The primary fan shall be selected as the fan with the least amount of runtime. The primary fan shall also be alternated weekly if required to maintain equal runtime.

4. If at any point an exhaust fan fails by indication of current or VFD alarm, the fan shall be deactivated, its isolation damper shall be closed, an alarm will be generated and the unit will be locked out in software and the standby fan shall start.

Current shall be given a minimum of a 60 second delay (adj.) at startup.

C. Airflow Control

1. Upon start-up of the exhaust fans, the BAS panel receives a static pressure signal. Upon a drop in static pressure below the static pressure setpoint of 1.0"w.c. (adj.), the fan shall modulate to increase the speed of the fan. Upon a rise is static pressure, the reverse shall occur.

2. Maintenance Mode

a. When a fan needs to be shut down for service, a Maintenance mode shall be activated on a fan by fan basis which shall remove it from service until released in software. If the Maintenance mode is selected for an operable fan, then the standby fan shall be started as indicated above. When the fan is at minimum speed with its isolation damper open, its speed shall be ramped up over a 10 minute (adj.) duration. This shall be done utilizing a low select between the static pressure control loop and the ramp which will reduce the operating fans in response to the system static pressure increase. When the two fans are operating together to maintain static pressure the fan

Maintenance fan shall be slowly ramped to minimum speed over a 5 minute (adj.) duration. When the fan is at minimum speed its isolation damper shall be closed. When the damper is closed the fan shall be shutdown.

b. DDC system shall alternarte the runtime of each fan weekly.(adjustable)

D. Filters

1. There shall be an analog differential pressure sensor for the filter bank.

2. An alarm shall be generated when the pressure across the filter bank rises above the dirty filter setpoint as indicated on the filter schedules (adjustable).

E. Safety Interlocks

1. The high suction static pressure safety located on the suction side of the exhaust fan shall be set as scheduled for duct pressure class. If the safeties pressure setting is exceeded the safety will trip and via hardwire interlock to the exhaust fans VFD's so the fan shall shutdown and the isolation dampers shall close. This safety shall operate in either hand or auto on the VFD's and shall be reset manually.

1.1 Constant Volume Exhaust Fan

A. General

1. Programs and sequences indicated or implied herein shall be provided.

2. Provide all I/O points indicated on the control diagram and as required to accomplish the sequence of operation.

3. All wire terminals, devices, gauges and wires shall be identified within the panels.

4. Dampers and end switches shall be interlocked such that they will operate per the sequence below in either auto, hand or off on the VFD/MCC.

5. All points shall be able to integrate to all trends, totalizations, etc., as applicable.

6. All alarms as indicated on the diagrams in the sequence of operation shall be generated to the appropriate server/workstations.

B. Start/Stop

1. The exhaust fan normally operates continuously with remotely capability for start/stop/scheduling functions. The H.O.A.

switch shall be kept in the "auto" position. "Hand" and "Off" positions shall be utilized for maintenance purposes.

2. When the fan receives a start command, the exhaust fan shall start.

3. If at any point the exhaust fan fails by indication of current, the fan shall be deactivated, an alarm will be generated and the unit will be locked out in software. Current shall be given a minimum of a 60 second delay (adj.) at startup.

EXHAUST AIR

TO ROOF

STACK

TO ROOF

STACK

D-ISO

D-ISO

FILTER BOX BOUNDARY

F

IL

T E

R

P-DP-A

P-EASP

MD

MD

P-EALL

P-EALL

ST/STDO

SPD-CAO

CTAI

ALMDI

NET

ST/STDO

SPD-CAO

CTAI

ALMDI

NET

DES

EF-500A-013S

EF-500B-013S

ST

ST

ST

ST

DES

DES

DES

Runtime to be alternated weekly

EXHAUST AIR

MCC

AI CS

DO ST/ST

EF-501-013S

Project TitleDrawing Title

Approved:

VA FORM 08 - 6231

A

Office of Construction and Facilities Management

U.S. Department of Veterans Affairs

B

C

D

E

F

A

B

C

D

E

F

21 4 5 6 7 8 9 10

Phase

ARCHITECT STAMPCONSULTANTS

321 4 5 6 7 8 9 10

CIVIL:

Pare Corporation 8 Blackstone Valley Place Lincoln, RI 02865

Phone: 401-334-4100 Facsimile: 401-334-4108

CONFORMED CONSTRUCTION DOCUMENTS

290 Congress St., 5th Floor Boston, MA 02210

Phone: 617-895-1000

VA Medical Center Providence, RI Expand Bldg. 1 to Replace Hemodialysis Phase 1

Providence, RI

650-342

Project Director

FULLY SPRINKLERED

STRUCTURAL:

Odeh Engineers 1223 Mineral Springs Ave.

Providence, RI 02904

Phone: 401-724-1771 Facsimile: 401-724-1981

MEP/FP:

BR+A Consulting Engineers, LLC 10 Guest St. 4th Floor Boston, MA 02135

Phone: 617-254-0016 Facsimile: 617-924-9339

COST:

DG Jones International, Inc.

3 Baldwin Green Common, Suite 202 Woburn, MA 01801

Phone: 781-982-3131 Facsimile: 781-932-3199

Location

Issue Date Checked Drawn

Project Number

Building Number

Drawing Number

J J o b s \P

C .J

\B

A S

\B A

S M

A S

T E

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MI.805

EXHAUST FAN DIAGRAMS, POINTS LIST &

SEQUENCE OF OPERATION

11/09/2018 KP EG

100% CONSTRUCTION

DOCUMENTS

KEY NOTES

LOCATE STATIC PRESSURE SENSOR ON FLOOR BELOW. SENSOR

SHALL BE HARDWIRED TO AHU CONTROLLER. SHARED POINT OVER

THE NETWORK SHALL NOT BE ALLOWED.

1A

Dual Exhaust Fan with Single Filter Box & Static Pressure Contro

Dual Exhaust Fan with Filter Box & Static Pressure Control - Control Points List

BAS_TYPE BAS_SERVICE BAS_SERVICE_TAG ALM_LO ALM_HI

ALM_OFF /

NORMAL COMMENTS

AI DIFFERENTIAL PRESSURE - ANALOG P-DP-A X FILTER A

AI EXHAUST AIR / STATIC PRESSURE P-EASP X X

AI VARIABLE FREQUENCY DRIVE CT X EXHAUST FAN A - STATUS

AI VARIABLE FREQUENCY DRIVE CT X EXHAUST FAN B - STATUS

AO VARIABLE FREQUENCY DRIVE SPD-C EXHAUST FAN A

AO VARIABLE FREQUENCY DRIVE SPD-C EXHAUST FAN B

BI DAMPER END SWITCH DES D-ISO OPEN END SWITCH - HARDWIRE INTERLOCK

BI DAMPER END SWITCH DES D-ISO OPEN END SWITCH - HARDWIRE INTERLOCK

BI DAMPER END SWITCH DES D-ISO CLOSED END SWITCH

BI DAMPER END SWITCH DES D-ISO CLOSED END SWITCH

BI EXHAUST AIR / LOW PRESSURE LIMIT P-EALL X EXHAUST FAN A

BI EXHAUST AIR / LOW PRESSURE LIMIT P-EALL X EXHAUST FAN B

BI STATUS INPUT ST EF-1A VFD HOA SWITCH AUTO POSITION STATUS

BI STATUS INPUT ST EF-1A VFD HOA SWITCH HAND POSITION STATUS

BI STATUS INPUT ST EF-1B VFD HOA SWITCH AUTO POSITION STATUS

BI STATUS INPUT ST EF-1B VFD HOA SWITCH HAND POSITION STATUS

BI VARIABLE FREQUENCY DRIVE ALM X EXHAUST FAN A

BI VARIABLE FREQUENCY DRIVE ALM X EXHAUST FAN B

BO ISOLATION DAMPER D-ISO

BO ISOLATION DAMPER D-ISO

BO VARIABLE FREQUENCY DRIVE ST/ST EXHAUST FAN A

BO VARIABLE FREQUENCY DRIVE ST/ST EXHAUST FAN B

Grand total: 22

1B

Dual Exhaust Fans with Single Filter Box & Static Pressure Control Sequence of Operation

Constant Volume Exhaust Fan Control Points List

BAS_TYPE BAS_SERVICE BAS_SERVICE_TAG ALM_LO ALM_HI

ALM_OFF /

NORMAL COMMENTS

AI STATUS INPUT CS EXHAUST FAN MCC

BO START-STOP ST/ST

Grand total: 2

2B

Constant Volume Exhaust Fan Sequence of Operation

2A Constant Volume Exhaust Fan

DEDUCT ALT#6DEDUCT ALT#6

Number: Revisions: Date:

T

T

VFDVFDVFDVFD

VFDVFDVFDVFD

M

1.1 Reheat/Radiant System Steam to Hot Water HEX

A. General

1. Programs and sequences indicated or implied herein shall be provided.

2. Provide all I/O points indicated on the control diagram and as required to accomplish the sequence of operation.

3. All wire terminals, devices, gauges and wires shall be identified within the panels.

4. All points shall be able to integrate to all trends, totalizations, etc., as applicable.

5. All alarms as indicated on the diagrams in the sequence of operation shall be generated to the appropriate server/workstations.

B. Start/Stop

1. The Hot Water System shall operate year round. The heat exchangers shall be manually selected for steam supply and water side service with the pumps operating in a primary/standby strategy.

2. If the primary pump fails to start within 30 seconds (adj.), the standby pump shall be started and an alarm shall be generated.

3. The runtime for each pump shall be totalized by the BAS system. The primary pump shall be selected as the pump with the least amount of runtime. The primary pump shall also be alternated monthly if required to maintain equal runtime.

4. Upon failure of the D.P. sensor feedback to the DDC panel, the bypass valve and/or pump(s) speed shall remain in the last known state. An alarm shall be generated at the BMS.

C. Pressure Control

1. Upon confirmation of pump status, the primary pump shall ramp to maintain system differential pressure.

2. The initial system differential setpoint shall be 15 psi (adj.). The BAS Contractor shall allot sufficient time to work with the Testing and Balancing Contractor for determining the optimal final system differential pressure setpoint during balancing.

3. The VFD shall modulate the speed of the pump to maintain the differential pressure setpoint.

4. If the VFD is at minimum speed and the pressure continues to rise the differential pressure control valve shall modulate open.

D. Temperature Control

1. On a drop in hot water supply temperature below setpoint the steam heat exchanger valve shall modulate in a to maintain the hot water supply temperature setpoint of 180 DegF (adj.). On a rise in temperature the reverse shall occur.

E. Energy Conservation

1. Supply Hot Water Temperature Reset

a. When the outside air temperature is below 40 DegF (adj.) there shall be no reset of the hot water supply temperature.

The setpoint shall ramp at 2 DegF in 10 minutes intervals back to the above mentioned setpoint.

b. When the outside air temperature is above 45 DegF (adj.) the supply hot water temperature setpoint shall be automatically reset up or down in 2 DegF increments. The reset mode shall make adjustments on 10 minutes intervals to a minimum hot water supply temperature setpoint of 150 DegF (adj.).

c. The system shall only include controllers in the reset strategy that are actively in heating mode. If the furthest open valve is below 75% (adj.) the supply setpoint reset shall start.

d. If the furthest open valve is above 95% (adj.) open the reset routine shall stop. If any valve reaches 100% (adj.) open the reset routine shall reverse.

e. If two or more valves reach 100% open for more than 20 minutes (adj.) the reset routine shall ramp the supply setpoint back to the starting setpoint in 5 minutes. An alarm shall be generated and the reset routine shall be locked out in software.

P-DP-A

T-HWS

T-HWS

T-HWR

T-HWS

HWS

HWR

HWS

HWR

HWS

HWR

H W

S

HWS

HWS

ST/STDO

SPD-CAO

CTAI

ALMDI

NET

ST/STDO

SPD-CAO

CTAI

ALMDI

NET

V-STM

MPS

V-DP

SWHE-501-013S

SWHE-500-013S

HWP-500-013S

HWP-501-013S

V-STM

1/3

2/3

ST

ST

ST

ST

FM-H

Project TitleDrawing Title

Approved:

VA FORM 08 - 6231

A

Office of Construction and Facilities Management

U.S. Department of Veterans Affairs

B

C

D

E

F

A

B

C

D

E

F

21 4 5 6 7 8 9 10

Phase

ARCHITECT STAMPCONSULTANTS

321 4 5 6 7 8 9 10

CIVIL:

Pare Corporation 8 Blackstone Valley Place Lincoln, RI 02865

Phone: 401-334-4100 Facsimile: 401-334-4108

CONFORMED CONSTRUCTION DOCUMENTS

290 Congress St., 5th Floor Boston, MA 02210

Phone: 617-895-1000

VA Medical Center Providence, RI Expand Bldg. 1 to Replace Hemodialysis Phase 1

Providence, RI

650-342

Project Director

FULLY SPRINKLERED

STRUCTURAL:

Odeh Engineers 1223 Mineral Springs Ave.

Providence, RI 02904

Phone: 401-724-1771 Facsimile: 401-724-1981

MEP/FP:

BR+A Consulting Engineers, LLC 10 Guest St. 4th Floor Boston, MA 02135

Phone: 617-254-0016 Facsimile: 617-924-9339

COST:

DG Jones International, Inc.

3 Baldwin Green Common, Suite 202 Woburn, MA 01801

Phone: 781-982-3131 Facsimile: 781-932-3199

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MI.806

REHEAT/RADIANT SYSTEM STEAM TO HOT

WATER HEX CONTROL DIAGRAM, POINTS

LIST & SEQUENCE OF OPERATION

11/09/2018 KP EG

100% CONSTRUCTION

DOCUMENTS

1A

Reheat/Radiant System Steam to Hot Water

HEX

Reaheat/Radiant System Steam to Hot Water HEX Control Points List

BAS_TYPE BAS_SERVICE BAS_SERVICE_TAG ALM_LO ALM_HI

ALM_OFF /

NORMAL COMMENTS

AI DIFFERENTIAL PRESSURE - ANALOG P-DP-A X X

AI HOT WATER RETURN TEMPERATURE T-HWR COMMON RETURN

AI HOT WATER SUPPLY TEMPERATURE T-HWS X X COMMON SUPPLY

AI HOT WATER SUPPLY TEMPERATURE T-HWS X X HEX-B SUPPLY

AI HOT WATER SUPPLY TEMPERATURE T-HWS X X HEX-A SUPPLY

AI HYDRONIC SYSTEM FLOW METER FM-H

AI VARIABLE FREQUENCY DRIVE CT X PUMP - 1 STATUS

AI VARIABLE FREQUENCY DRIVE CT X PUMP - 2 STATUS

AO DIFFERENTIAL PRESSURE CONTROL VALVE V-DP

AO STEAM VALVE V-STM

AO STEAM VALVE V-STM

AO VARIABLE FREQUENCY DRIVE SPD-C PUMP - 1

AO VARIABLE FREQUENCY DRIVE SPD-C PUMP - 2

BI STATUS INPUT ST 1-HWP-1 VFD HOA SWITCH AUTO POSITION STATUS

BI STATUS INPUT ST 1-HWP-1 VFD HOA SWITCH HAND POSITION STATUS

BI STATUS INPUT ST 1-HWP-2 VFD HOA SWITCH AUTO POSITION STATUS

BI STATUS INPUT ST 1-HWP-2 VFD HOA SWITCH HAND POSITION STATUS

BI VARIABLE FREQUENCY DRIVE ALM X PUMP - 1

BI VARIABLE FREQUENCY DRIVE ALM X PUMP - 2

BO VARIABLE FREQUENCY DRIVE ST/ST PUMP - 1

BO VARIABLE FREQUENCY DRIVE ST/ST PUMP - 2

Grand total: 21

1B

Reheat/Radiant System Steam to Hot Water HEX Sequence of Operation

Number: Revisions: Date:

1.1 AHU/Soffit System Steam to Glycol HEX

1. Programs and sequences indicated or implied herein shall be provided.

2. Provide all I/O points indicated on the control diagram and as required to accomplish the sequence of operation.

3. All wire terminals, devices, gauges and wires shall be identified within the panels.

4. All points shall be able to integrate to all trends, totalizations, etc., as applicable.

5. All alarms as indicated on the diagrams in the sequence of operation shall be generated to the appropriate server/workstations.

B. Start/Stop

1. The Primary Glycol System shall start and operate whenever the AHU requires heating from the preheat coil valve or the

Soffit system needs to start. The heat exchangers shall be manually selected for steam supply and water side service.

The pumps shall be operating in a primary/standby strategy.

2. If the primary pump fails to start within 30 seconds (adj.), the standby pump shall be started and an alarm shall be generated.

3. The runtime for each pump shall be totalized by the BAS system.