S02 - 08 - VA Hospital Phase 2G - ATC As-Built Drawings.pdf

MECHANICAL AND CONTROL SYSTEMS

Environmental Control System

Building Automation System

PROJECT

ARCHITECT

ENGINEER

CONTRACTOR

REFERENCE DRAWING

NO. REVISION-LOCATION ECN DATE BY

Automatic Temperature Controls

Heating

Air Conditioning

Air Filters

Water Treatment

Coil Cleaning

Contract Operations

Time-Shared Automated Building Service

Refrigeration

Industrial Controls / Recording / Indication Equipment

Air and Water Systems Balancing

Instrumentation System Installation

Building Operations Management

Energy Conservation Control

Custom Programmed Maintenance

211-1009IW/BM 12/17/12IW/JAIW

VA MEDICAL CENTER

HVAC CONTROLS UPGRADE - PHASE 2G

WILMINGTON, DELAWARE

HATCH MOTT MACDONALD

27 BLEEKER ST.

MILLBURN, NJ 07041

BOB SMITH CONTRACTORS

281 EAST EVERGREEN ST.

WEST GROVE, PA 19390

DEPT. OF VETERANS AFFAIRS

1601 KIRKWOOD HIGHWAY

WILMINGTON, DE 19805

VA HVAC CONTROLS UPGRADE - PHASE 2G

(PARTIAL SUBMITTAL - INCLUDES BLDG. #13 REGIONAL OFFICE HVAC EQUIPMENT)

PAGE # DRAWING TITLE LAST REVISION

TP-1 TITLE PAGE 12/10/13

C-1A AIR HANDLING UNIT CONTROL – AHU-1 12/10/13

C-1B CONTROLLER WIRING DETAIL – AHU-1 12/10/13

C-1C AIR HANDLING UNIT CONTROL – AHU-2 12/10/13

C-1D CONTROLLER WIRING DETAIL – AHU-2 12/10/13

C-1E SEQUENCE OF OPERATIONS – BLDG. 13 AHU-1 & AHU-2 12/10/13

C-2 CHILLER & ASSOCIATED HEAT EXCHANGER CONTROL 12/10/13

AS-BUILT REV. FINAL POINT TERM.1 12/10/13 DB

1 2

AS-BUILT REV. ADD ‘MASTER’ NOTE1 01/28/14 DB

NOTE(S): REFER TO ‘MASTER BUILDING NETWORK ARCHITECTURE DRAWING’

PROVIDED IN OUR ATC AS-BUILT / O&M MANUAL BINDER FOR ALL

SUPERVISORY CONTROLLER INFORMATION AND ASSOCIATED IP

ADDRESSES USED BY MODERN CONTROLS.

REFER TO ‘MASTER BUILDING VALVE SCHEDULE’ PROVIDED IN OUR

ATC AS-BUILT / O&M MANUAL BINDER FOR A COMPLETE LIST OF ALL

CONTROL VALVES PROVIDED FOR AIR HANDLING UNITS AND

ASSOCIATED VAV BOXES.

REFERENCE DRAWING NO. REVISION-LOCATION ECN DATE BY

Sales Engineer Project Manager Application Engineer

BY DATE BY DATE

DRAWN APPROVED

ONTRACT NUMBER

RAWING NUMBER

Drawing Title

Project Title

BM 12/17/12

211-1009

IW/BMIW/JAIW

C-1E

SEQUENCE OF OPERATIONS -

BLDG.#13 AIR HANDLING

UNITS (AHU-1 & AHU-2)

VA HVAC CONTROLS UPGRADE -

PHASE 2G

WILMINGTON, DELAWARE

SEQUENCE OF OPERATIONS - BLDG.#13 AIR HANDLING UNITS

(TYPICAL FOR AHU-1 & AHU-2)

GENERIC AHU - SEQUENCE OF OPERATION

1. GENERAL

UNIT IS MANUALLY STARTED AND STOPPED BY THE DCP OR REMOTELY AT THE BMS. WHEN UNIT IS OFF DAMPER D-1 IS CLOSED. WHEN UNIT IS ON DAMPER D-1 IS OPEN.

2. TEMPERATURE CONTROL

DURING HEATING MODE THE SPACE TEMPERATURE SENSED BY T-1 SHALL BE MAINTAINED AT SETPOINT BY DCP MODULATING V-1. DURING COOLING MODE THE COOLING

COIL LEAVING AIR TEMPERATURE SENSED BY T-3 SHALL BE MAINTAINED AT SETPOINT BY DCP BY MODULATING V-2, AND THE SPACE TEMPERATURE SENSED BY T-1 SHALL

BE MAINTAINED AT SETPOINT BY MODULATING V-3.

3. AIR FLOW CONTROL

THE SUPPLY FAN SHALL RUN AT CONSTANT SPEED PROVIDING CONSTANT AIR FLOW.

4. FREEZE PROTECTION

IF THE AIR TEMPERATURE AS SENSED BY T-2 FALLS BELOW 45F AN ALARM SIGNAL IS INDICATED AT THE DCP AND BMS. IF THIS TEMPERATURE FALLS BELOW 40F THE UNIT

SUPPLY FAN SHALL STOP, THE DAMPER D-1 SHALL CLOSE AND A CRITICAL ALARM SHALL BE INDICATED AT THE DCP AND BMS.

5. EMERGENCY SHUTDOWN/RESTART

WHEN SMOKE IS DETECTED BY THE DUCT MOUNTED SMOKE DETECTOR THE SUPPLY FAN SHALL SHUT OFF, DAMPER D-1 CLOSE AND AN ALARM SIGNAL SHALL BE

TRANSMITTED TO THE FIRE ALARM SYSTEM. SUPPLY FAN SHALL RESTART AND DAMPER D-1 SHALL OPEN WHEN THE FIRE ALARM CIRCUIT IS MANUALLY RESET.

*SEE NOTES

NOTES: AHU-1 AND AHU-2 WERE PROGRAMMED TO MATCH THE

EXISTING CSI CONTROLLERS PROGRAM. ABOVE SEQUENCE

WAS FROM ‘AHU-1 CLINICAL’ WHICH WAS THE SAME TYPE OF

UNIT. *SEE ASSOCIATED CONTROL DIAGRAM ON DRAWING

C-1A AND C-1C.

AS-BUILT REV. NEW DWG. / POINT TERM.1 12/10/13 DB