Amendment 0003_M0603_AS_BUILT.pdf

TP

RELIEF VALVE

SET @ 110 PSIG

STEAM TO HOT WATER

HEAT EXCHANGER

VACUUM BREAKER

P

HOT WATER

PUMP

P

HOT WATER

PUMP

1"

FILL HOSE

CONNECTION COLD

FILL TO 40 PSI

AIR

SEPARATOR

HIGH CAPACITY

AUTOMATIC AIR

VENT (TYP)

TO FLOOR

DRAIN

TO

BUILDING

FROM BUILDING

TO FLOOR

DRAIN

FROM

CAMPUS

HWS

HWR

HWS

TP

HPS

RELIEF VALVE

SET @ 110 PSIG

STEAM TO HOT WATER

HEAT EXCHANGER

VACUUM BREAKER

P

TO FLOOR

DRAIN

HWR

HWS

VACUUM

BREAKER

P

P

T

T

T

T

P

2"

HOSE

DRAIN

(TYP)

VERTICAL EXPANSION

TANK MOUNTED ON

FLOOR. REFER TO DETAIL.

VENT

FILL FUNNEL

BYPASS

CHEMICAL SHOT

FEEDER

TO

FLOOR

DRAIN

CRU-1

TO CUP

PCD

HEATING HOT WATER SYSTEM SEQUENCE OF OPERATION

GENERAL

1. THE BMS CONTRACTOR SHALL FURNISH ALL FIELD WIRING REQUIRED FOR OPERATION INCLUDING, BUT NOT LIMITED TO, INTERLOCK WIRING, COMMUNICATION WIRING, ETC.

SYSTEM START-UP

1. THE HEATING SYSTEM SHALL BE ENABLED WHEN OA TEMP IS BELOW 85°F (ADJ) OR VIA A MANUAL COMMAND. IT SHALL BE SET UP TO RUN 24/7.

STEAM TO HOT WATER HEAT EXCHANGERS

1. UPON AN ENABLE COMMAND OF THE HEATING HOT WATER SYSTEM FROM THE BMS AND PUMP STATUS IS PROVEN, STEAM CONTROL VALVE V-1 MODULATES OPEN TO MEET THE HEATING HOT WATER SUPPLY TEMPERATURE SETPOINT AS MEASURED AT THE HOT WATER DISCHARGE FROM EACH HEAT EXCHANGER.

2. IF THE LEAVING WATER TEMPERATURE SETPOINT CANNOT BE MET FOR 5 MINUTES (ADJ) WITH STEAM CONTROL VALVE V-1 100% OPEN, STEAM CONTROL VALVE V-2 MODULATES OPEN WHILE STEAM CONTROL VALVE V-1 REMAINS 100% OPEN TO MAINTAIN THE HEATING HOT WATER SUPPLY TEMPERATURE SETPOINT.

HOT WATER SUPPLY TEMPERATURE RESET

1. THE HOT WATER DISCHARGE TEMPERATURE SETPOINT SHALL BE RESET BY THE OUTSIDE AIR TEMPERATURE. THE DISCHARGE SETPOINT SHALL BE RESET LINEARLY FROM 180ºF (ADJ) TO 140ºF (ADJ) AS THE

OUTSIDE AIR TEMPERATURE FALLS FROM 60ºF (ADJ) TO 20ºF (ADJ).

DIFFERENTIAL PRESSURE CONTROL – VARIABLE FLOW (HOT WATER PUMP CONTROL)

1. UPON A COMMAND TO START THE LEAD HOT WATER PUMP, THE VARIABLE FREQUENCY DRIVE SHALL START AT 0% AND SLOWLY RAMP UP TO SPEED AS REQUIRED BY THE SYSTEM DIFFERENTIAL PRESSURE

SETPOINT AS MEASURED AT MULTIPLE SYSTEM DIFFERENTIAL PRESSURE SENSORS.

2. THE BMS SHALL MODULATE THE LEAD HOT WATER PUMP VFD AS NECESSARY TO MAINTAIN THE SYSTEM DIFFERENTIAL PRESSURE SETPOINT. THE PUMP VFD CONTROL ALGORITHM SHALL BE ENABLED WHENEVER THE ASSOCIATED PUMP IS ENABLED. DIFFERENTIAL PRESSURE SENSOR(S) SHALL BE LOCATED AS INDICATED IN THE DRAWINGS. THE HOT WATER PUMP SHALL MODULATE AS NECESSARY TO MAINTAIN EACH OF THE INDIVIDUAL PRESSURE SENSORS AT THE MINIMUM DIFFERENTIAL PRESSURE SETPOINT. NONE OF THE DIFFERENTIAL PRESSURES SHALL FALL BELOW THE MINIMUM DIFFERENTIAL PRESSURE SETPOINT. THE SENSORS

SHALL BE WIRED TO THE SAME CONTROLLER THAT MODULATES THE SPEED OF THE VFD.

3. THE BYPASS CONTROL VALVE SHALL MODULATE TO MAINTAIN MINIMUM SYSTEM FLOW THROUGH DISTRIBUTION.

4. IF MORE THAN ONE HOT WATER PUMP IS COMMANDED TO RUN, THE BMS SHALL MODULATE THE HOT WATER PUMP VFDS SIMULTANEOUSLY IN PARALLEL AT MATCHING SPEEDS. AS ADDITIONAL PUMPS ARE STARTED, THE VFD SHALL SLOWLY RAMP UP TO MATCH THE SPEED OF THE RUNNING PUMP VFD SUCH THAT SYSTEM FLUCTUATIONS SHALL BE AVOIDED. UPON A COMMAND TO START A PUMP, THE VFD SHALL START AT 0% AND SLOWLY RAMP UP TO SPEED AS REQUIRED BY THE SYSTEM DIFFERENTIAL PRESSURE.

5. WHEN A PUMP IS DISABLED, ITS VFD SPEED SHALL BE SET TO 0%.

6. IF THE SYSTEM DIFFERENTIAL PRESSURE EXCEEDS THE HIGH OR LOW PRESSURE LIMIT, AN ALARM SHALL BE ANNUNCIATED AT THE BMS.

PUMP PRIORITY AND FAILURE

1. AT ANY TIME A PUMP COMMAND OR SPEED DOES NOT EQUAL A PUMP STATUS AS MEASURED BY THE PUMP CURRENT SENSOR OR SPEED FEEDBACK, EXCEPT IMMEDIATELY AFTER STARTUP, A PUMP FAILURE ALARM SHALL BE GENERATED ON THE BMS AND THAT PUMP SHALL BE COMMANDED OFF. THE BMS SHALL WAIT 30 SECONDS TO SEE THE PUMP STATUS CHANGE BEFORE INDICATING A PUMP FAILURE ALARM. AN AUTOMATIC LEAD/STANDBY PROGRAM SHALL START THE STANDBY PUMP IN THE EVENT OF A LEAD PUMP FAILURE.

2. THE LEAD PUMP SHALL BE THE PUMP WITH THE LOWEST RUNTIME HOURS. THE LEAD AND STANDBY PUMPS SHALL BE INDEXED ON A WEEKLY BASIS (ADJ) TO EQUALIZE RUNTIMES.

3. THE BMS OPERATOR CAN OVERRIDE THE AUTOMATIC PROGRAM AT ANY TIME AND MANUALLY START/STOP EACH PUMP.

4. THE OPERATORS SHALL HAVE THE ABILITY TO LOCKOUT ANY PUMP VIA THE OPERATOR WORKSTATION. PLACING A PUMP IN LOCKOUT MODE WILL PREVENT THE BMS FROM BEING ABLE TO START THAT PUMP.

TO FLOOR

DRAIN

DCW SEE

PLUMBING

DRAWINGS

REGULATOR

VALVE SET AT

35 PSIG

NC

E

E

ESPEED CONTROL (TYP)

FAILURE ALARM (TYP)

ENABLE/DISABLE (TYP)

VARIABLE SPEED

CONTROLLER

W/ DISCONNECT

AND BYPASS

DO

DI

AO

EDI

CURRENT SENSOR

ALARM

E

E

ESPEED CONTROL (TYP)

FAILURE ALARM (TYP)

ENABLE/DISABLE (TYP)

VARIABLE SPEED

CONTROLLER

W/ DISCONNECT

AND BYPASS

DO

DI

AO

EDI

CURRENT SENSOR

ALARM

E

AO

E

AO

VENT TO EXTERIOR

WALL. SEE MO301.

6"

2-1/2"

2-1/2"

4"

M

IN

' 6

1-1/2"

4"

2-1/2"

2-1/2"

3"

3"

2-1/2"

2-1/2" 2-1/2"

2-1/2"

2-1/2"

HWS

3"

3"

2-1/2"

HWS

HWS

AIF

E

E

AIF

V-1

V-2

EAO

AIP E

DIFFERENTIAL PRESSURE

SENSOR. LOCATE AS SHOWN

ON PLANS. MAINTAIN 10 PSI.

HWR

HWS

M

DO

E

S M

O K

E

D A

M P

E R

E POWER

DI E

CLOSED

OPEN

DI E

OPEN/CLOSE

M

DO

E

S M

O K

E /F

IR

E

D

A M

P E

R

E POWER

FUSIBLE LINK

DI E

CLOSED

OPEN

DI E

OPEN/CLOSE

1100 Clark Avenue St. Louis, Missouri 63102

T: 314.241.6250 F: 314.241.2570

JACKSON, MS

CANNON DESIGN PROJECT NO. 03640.61

© CannonDesign 2017 - All rights reserved. No part of this document may be reproduced or utilized in any form, without prior written authorization by the Cannon Corporation.

JAN 12, 2018

NOT FOR CONSTRUCTION

Drawing Title

Approved: Project Director

Project Title

Date

Location

Checked

Building Number

Project Number

Drawing Number

Drawn

Dwg. of 66Revisions: Date

CONSULTANTS: ARCHITECT/ENGINEERS: Office of Construction and Facilities Management o n e e ig h th in c h o n e fo o t 1

B

A

C

D

E

F th re e in c h e s o n e fo o t o n e a n d o n e h a lf in c h e s o n e fo o t o n e in c h o n e fo o t th re e q u a rt e rs in c h o n e fo o t o n e h a lf in c h o n e fo o t th re e e ig h th s in c h o n e fo o t o n e q u a rt e r in c h o n e fo o t

VA FORM 08-6231

1 2 3 4 5 6 87 9

F

E

D

C

B

A

97 8654321

Department of Veterans Affairs

COMMUNITY LIVING CENTER

RENOVATION

586-16-106FLOW AND CONTROL DIAGRAMS

M0603

MEM CKH

NTS

3F

STEAM-HW HEAT EXCHANGER CONTROLS/PIPING DIAGRAM

NTS

6B

DUCT MOUNTED SMOKE DAMPER

NTS

8B

DUCT MOUNTED SMOKE FIRE DAMPER

OMITT BYPASS

VALVE HERE

DUE TO 3-WAY

VALVES BEING

INSTALLED AT

THE END OF

THE SYSTEM

LOOPS.

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