AUTOMATIC TEMPERATURE CONTROL SYSTEM REPLACEMENT AT SPRING HILL ELEMENTARY SCHOOL

(1)

CS

DESCRIPTION DATE

NO.

DRAWING NUMBER

COVER SHEET

DRAWING TITLE REVISIONS

CHECKED DATE PROJECT # DRAWN

PROJECT TITLE

SPRING HILL ELEMENTARY SCHOOL AUTOMATIC TEMPERATURE CONTROL

SYSTEM REPLACEMENT AT

MMB-013-22 10/12/2021

SM

M-1 CS M-2 M-3 M-4 M-5 M-6 M-7 M-8 M-9 M-10 M-11 M-12

SPRING HILL ELEMENTARY

SCHOOL

8201 Lewinsville Rd McLean, VA 22102

COVER SHEET

PROJECT SCOPE, GUIDELINES & EQUIPMENT DATA HVAC EQUIPMENT SCHEDULES

1ST AND 2ND FLOOR - ZONE FLOOR PLAN & HVAC LAYOUT CONTROL DIAGRAMS - CENTRAL PLANT SYSTEMS

CONTROL DIAGRAMS - RTU- 1, 2 CONTROL DIAGRAMS

CONTROL DIAGRAMS - RTU- 3, 4, 11, 14 CONTROL DIAGRAMS CONTROL DIAGRAMS - RTU- 7, 8, 12 CONTROL DIAGRAMS

CONTROL DIAGRAMS - RTU- 9, 10, 15, 16 CONTROL DIAGRAMS

CONTROL DIAGRAMS - RTU- 5, 13; RAHU- 1 - 9 CONTROL DIAGRAMS CONTROL DIAGRAMS - UVs, FCUs & VAVs

CONTROL DIAGRAMS - MISC. EQUIPMENT

FUNCTION BLOCK LOGIC & MECHANICAL CONTROL SYMBOLS

(2)

DESCRIPTION DATE

NO.

DRAWING NUMBER DRAWING TITLE

SM

REVISIONS CHECKED DATE PROJECT # DRAWN

PROJECT TITLE

M-1

CONTROL SYSTEM SCOPE, UNIT DATA

& GUIDELINES

RTU SCHEDULE

STANDARD ABBREVIATIONS AHU - Air Handling Unit

BAS - Building Automation System CFM - Cubic Feet (of Air) Per Minute CH - Cabinet Heater

CHW - Chilled Water

CU - Control or Cooling Unit (VAV) CVT - Constant Volume Terminal (VAV) DP - Differential Pressure (Static) DHC - Duct Heating Coil

FCPS - Fairfax County Public Schools FCU - Fan Coil Unit

FTR - Finned Tube Radiator GPM - Gallons Per Minute HW - Hot Water

LVT - Line Voltage Thermostat MAU - Makeup Air Unit

MBH - Thousand BTU Per Hour NIC - Not Included in Contract RAHU - Rooftop Air Handling Unit RTU - Rooftop Unit

UH - Unit Heater UV - Unit Ventilator VAV - Variable Air Volume VFD - Variable Frequency Drive

SPRING HILL ELEMENTARY

SCHOOL

8201 Lewinsville Road, McLean, VA, 22102

EXHAUST FAN SCHEDULE

MMB-013-22 10/12/2021

RAHU SCHEDULE

PUMP SCHEDULE

SCOPE OF WORK

5 - REPLACE ALL HVAC EQUIPMENT (INCLUDING EXHAUST FANS ) PNEUMATIC DAMPER ACTUATORS WITH NEW ELECTRONIC ACTUATORS. CLEAN & LUBRICATE ALL UNIT DAMPER LINKAGES INCLUDING

BAROMETRIC DAMPERS AND VERIFY PROPER DAMPER OPERATION.

7 - PROVIDE AND INSTALL A NEW STAND ALONE DDC PROGRAMABLE CONTROLLER FOR EACH OF THE FOLLOWING HVAC SYSTEMS AND EQUIPMENT: CENTRAL HEATING SYSTEM (BOILERS & HW PUMPS), CHILLED WATER SYSTEMS (CHILLERS & CHW PUMPS), EACH AHU, RTU, MAU, UV AND FCU. BAS

CONTROLLERS FOR MAJOR EQUIPMENT (BOILERS, CHILLERS, PUMPS, AHUS, RTUS & MAUS) MUST HAVE CONTROL POINT (OUTPUT) OVERRIDE CAPABILITIES. THE BAS SHALL CONTROL ALL EXHAUST FANS, FTRS, CUHS AND UHS SHOWN ON THESE FLOOR PLANS THAT ARE NOT CONTROLLED BY ELECTRONIC

THERMOSTATS OR WALL SWITCH. PROVIDE AND INSTALL NEW LINE VOLTAGE THERMOSTATS WITH CONCEALED SETPOINT ADJUST WHERE SHOWN ON FLOOR PLANS.

6 - REMOVE ALL EXISTING BAS CONTROLLERS AND RETURN TO FCPS. REMOVE ALL EXISTING CONTROL DEVICES SUCH AS RELAYS, SENSORS, POWER SUPPLIES, TERMINALS, TRANSDUCERS, ETC. AND REPLACE WITH NEW WHERE APPLICABLE. RE-USE OR RETURN TO FCPS

UNINTERRUPTIBLE POWER SUPPLIES (UPS).

9 - PROVIDE AND INSTALL NEW RETURN AND SUPPLY AIR TEMPERATURE DUCT SENSORS IN ALL AHUS, RTUS & MAUS. PROVIDE & INSTALL NEW AVERAGING TYPE SENSORS TO MONITOR MIXED AIR FOR ALL AHUS & RTUS. PROVIDE & INSTALL RETURN AIR HUMIDITY DUCT SENSORS WHERE SHOWN ON THESE DRAWINGS. PROVIDE NEW SENSORS TO MONITOR DISCHARGE AIR FOR ALL UVS & FCUS AND MOUNT IN CENTER OF UNIT.

12 - PROVIDE AND INSTALL NEW OCCUPANCY (MOTION) SENSORS IN SPACES SHOWN ON THESE FLOOR PLANS AND WIRE TO LOCAL BAS CONTROLLERS AS SHOWN ON THESE DRAWINGS. PROVIDE & INSTALL CARBON DIOXIDE (CO2) SENSORS IN SPACES SHOWN ON FLOOR PLAN(S). PROVIDE CAGE TYPE

PROTECTIVE COVERS FOR CO2 SENSORS IN GYMS & CAFETERIA. PROGRAM OCCUPANCY SEQUENCE FOR THESE DEVICES AS SPECIFIED HEREIN.

13 - HVAC UNIT NAMES IN PROGRAMS AND ROOM NUMBERS ON GRAPHIC SHALL MATCH UNIT NAMES &

ROOM NUMBERS AS SHOWN ON THESE DRAWINGS. ALL SPACE SENSORS SHALL BE LABELED WITH THE HVAC ID NAME OF THE UNIT SERVING THAT AREA. CONTRACTOR SHALL FIELD VERIFY ROOM NUMBERS

AND NAMES.

10 - INSTALL NEW 2 POLE FREEZESTATS IN ALL UNITS WITH OUTSIDE AIR INTAKE AND HW OR CHW COILS.

ONE POLE FOR THE HARDWIRED SAFETY INTERLOCK SEQUENCE, THE OTHER FOR THE BAS CONTROLLER ALARM INPUT.

8 - PROVIDE AND INSTALL MOTOR CURRENT SENSORS AND STATUS RELAYS FOR ALL EF, HW & CHW PUMP MOTORS AND AHU, RTU & MAU AND FC FAN MOTORS FOR THE PURPOSE OF MONITORING AND TRENDING THE RUN STATUS OF THIS EQUIPMENT AS WELL AS ACCUMULATING RUN TIME. THE BAS WILL ALSO

MONITOR & TREND THE ALARM AND RUN STATUS POINTS OF THE BOILERS AND CHILLERS.

17 - ALL NEW VALVES AND PIPING INSULATION DISTURBED DURING THE COURSE OF THIS WORK SHALL BE RE-INSULATED WITH HEAVY DENSITY RIGID MOLDED FIBERGLASS PIPE INSULATION WITH FACTORY APPLIED

ALL SERVICE JACKET (ASJ) WITH A 'K' FACTOR NOT TO EXCEED 0.25 @ 75F MEAN TEMPERATURE. THE THICKNESS SHALL MATCH WITH THE EXISTING INSULATION. THE NEW INSULATION SHALL BE PAINTED TO MATCH THE EXISTING INSULATION. ALL VALVES, STRAINERS, ELBOWS, AND FITTINGS SHALL BE INSULATED.

18 - CONTRACTOR SHALL BE RESPONSIBLE FOR DRAINING, REFILLING THE HOT WATER AND CHILLED WATER SYSTEMS, AND BLEEDING AIR OUT OF THE SYSTEMS AFTER REFILL AS NECESSARY TO PERFORM THIS

WORK.

15 - EXISTING CONDUIT TO SENSORS AT AIR HANDLERS AND CENTRAL PLANT MAY BE RE-USED IF IN GOOD CONDITION AND IF SIZED PER NATIONAL ELECTRIC CODE. CONTRACTOR SHALL REPAIR ALL CONDUIT USED FOR CONTROLS INCLUDING CONNECTORS AND COVER PLATES AS NEEDED. ALL NEW CONDUIT FOR POWER WIRING SHALL BE INTERMEDIATE METAL CONDUIT IF LARGER THAN 1" OR ELECTRIC METALIC TUBING IF 1"

OR SMALLER. NEW CONDUIT SHALL BE SIZED PER NATIONAL ELECTRIC CODE. FOR POWER WIRING IN THE CENTRAL PLANT, LIQUID-TIGHT GALVANIZED SINGLE STRIP FLEXIBLE METAL CONDUIT MAY BE USED FOR POWER WIRING IN LENGTHS UP TO 24" AND A SEPARATE GREEN GROUND WIRE SHALL BE INSTALLED THROUGH THE FLEXIBLE CONDUIT BACK TO THE SOURCE. FOR NEW CONDUIT TO END DEVICES SUCH AS SENSOR AND ACTUATORS, METAL CLAD (MC) FLEXIBLE CONDUIT IN LENGHTS UP TO 24" MAY BE USED. ALL CONTROL WIRING SHALL BE NEW. WIRING SHALL BE CONTINUOUS FROM CONTROLLER TO INPUT SENSORS AND OUTPUT DEVICES WITHOUT SPLICING OR WIRE NUTS. WIRING TO CONTROL END DEVICES ON MOVING OR VIBRATING EQUIPMENT SHALL BE RUN IN FLEXIBLE METALIC CONDUIT IN LENGTHS UP TO 24".

11 - REPLACE EXISTING SPACE SENSORS WITH NEW SETPOINT ADJUST TYPE SENSORS. SURFACE MOUNT ON WALL WITHIN A VENTILATED COVER (EXCEPT IN HALLWAYS, BATHROOMS & SHOWERS - USE FLAT WALL PLATE TYPE WITHOUT ADJUSTER) AND INSULATE BEHIND SENSOR. NEW WIRING SHALL BE RUN FROM SENSOR TO CONTROLLER AND BE CONCEALED IN WALLS AND CEILING. PROVIDE CAGE TYPE PROTECTIVE COVERS FOR SENSORS IN GYMS & CAFETERIA, AND KITCHEN. REMOVE ALL EXISTING NIGHT SETBACK SENSORS ASSOCIATED WITH EXISTING BAS.

3 - REPLACE OUTSIDE AIR TEMPERATURE AND HUMIDITY SENSORS WITH NEW. PROVIDE AND INSTALL NEW BAS WATER TEMPERATURE SENSORS FOR CENTRAL PLANT HOT WATER AND CHILLED WATER SYSTEMS AS SHOWN ON THESE DRAWINGS. WELD NEW SENSOR WELL THREAD-O-LETS ON PIPES.

EXISTING SENSOR WELLS MAY BE REUSED IF COMPATIBLE AND CLEANED WITH NEW SENSORS. PROVIDE NEW THERMAL GREASE IN EACH WELL.

4 - REPLACE ALL HVAC EQUIPMENT (AHUS, RTUS, MAUS, UVS, FCUS, FTRS) HW & CHW COIL VALVES AND ACTUATORS WITH NEW VALVES AND ELECTRONIC ACTUATORS.

14 - PROVIDE NEW CONTROL CABINETS WITH LATCHING DOOR PANEL (WITHOUT KEY LOCK) FOR NEW BAS CONTROLLERS AND REMOVE ALL UNUSED CONTROL CABINETS. EXPOSED MOUNTING HOLES IN WALL

FROM REMOVED CABINETS SHALL BE REFILLED AND NEWLY EXPOSED AREAS SHALL BE PAINTED TO MATCH EXISTING WALL COLOR.

GENERAL: THE CONTRACTOR SHALL COMPLETELY REPLACE EXISTING HVAC AUTOMATIC TEMPERATURE CONTROL (ATC) SYSTEM WITH A NEW HVAC AUTOMATIC TEMPERATURE CONTROL SYTEM WITH DDC CONTROLS. THE NEW BUILDING AUTOMATION SYSTEM (BAS) SHALL INCLUDE OPERATING SEQUENCES THAT ARE SPECIFICALLY DESIGNED FOR THIS SITE TO PROVIDE MAXIMUM ENERGY EFFICIENCY AS WELL AS OPTIMUM OCCUPANT

COMFORT IN THE MANAGEMENT OF THE BUILDING'S HVAC SYSTEMS. THE BAS WILL ALSO INCLUDE A HIGH QUALITY, USER FRIENDLY GRAPHICAL INTERFACE. THE CONTRACTOR SHALL PROVIDE THE FOLLOWING:

1 - REMOVE ALL PNEUMATIC CONTROL DEVICES, INCLUDING ACTUATORS. REMOVE ALL EXPOSED PNEUMATIC TUBING IN THE MECHANICAL ROOMS AND ELSEWHERE. FOR PHASING PURPOSES, ALL

REMAINING UNEXPOSED PNEUMATIC LINES SHALL BE CAPPED WHILE THE AIR COMPRESSOR REMAINS IN SERVICE. AT THE END OF THE PROJECT, THE AIR COMPRESSOR SHALL BE REMOVED AND DISPOSED OF BY THE CONTRACTOR. CONTRACTOR SHALL REMOVE EXISTING DISCONNECT, CONDUIT AND POWER WIRES FROM BREAKER PANEL TO COMPRESSOR.

2 - REPLACE EXISTING THREE WAY MAIN HOT WATER MIXING VALVE WITH NEW. REPLACE PNEUMATIC ACTUATOR WITH NEW SPRING RETURN ELECTRONIC ACTUATOR. PROVIDE AND INSTALL NEW VARIABLE FREQUENCY DRIVES FOR SPECIFIED PUMPS AND DIFFERENTIAL PRESSURE TRANSMITTER(S) AT THE LOCATION SPECIFIED ON DRAWING M-2.

16 - ALL THE EXPOSED CONTROL WIRING AND POWER WIRING IN OCCUPIED SPACES INCLUDING BUT NOT LIMITED TO CLASSROOMS AND OFFICES SHALL BE RUN IN 700 SERIES WIREMOLD METAL RACEWAYS. THE COLOR OF THE RACEWAY SHALL MATCH THE COLOR OF THE WALL.

19 - CONTRACTOR SHALL HIRE A CERTIFIED TESTING, ADJUSTING, AND BALANCING (TAB) AGENCY TO PERFORM AIR AND WATER BALANCING OF THE SYSTEMS PER SECTION 01660 OF SPECIFICATIONS.

CONTRACTOR SHALL BE RESPONSIBLE FOR DISASSEMBLING AND ASSEMBLING UNITS AS NEEDED TO PERFORM BALANCING. CONTRACTOR SHALL BE RESPONSIBLE FOR REPAIRING PIPE AND AIR DUCT INSULATION DISTURBED DURING THE COURSE OF BALANCING.

20 - CONTRACTOR SHALL INCLUDE AND BEAR THE COST OF ALL THE APPLICABLE SERVER UPGRADES NECESSARY FOR THE ADDITION OF THE SYSTEM INSTALLED PER THIS CONTRACT TO THE SERVER AND FURTHER THE CONTRACTOR SHALL MAKE CERTAIN THAT THE ADDITION OF THE NEW SYSTEM AND ANY

ASSOCIATED UPGRADES PROVIDE NO NOTICEABLE DISRUPTION TO SERVICE OR OTHER NEGATIVE IMPACTS ON REMAINING FCPS FACILITIES HOSTED ON THE SERVER

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DESCRIPTION DATE

NO.

DRAWING NUMBER DRAWING TITLE

SM

REVISIONS CHECKED DATE PROJECT # DRAWN

PROJECT TITLE

M-2

HVAC EQUIPMENT SCHEDULES

FAN COIL UNIT SCHEDULE

SPRING HILL ELEMENTARY

SCHOOL

8201 Lewinsville Road, McLean, VA, 22102

MMB-013-22 10/12/2021

VAV TERMINAL SCHEDULE

UNIT VENTILATOR SCHEDULE

(4)

DESCRIPTION DATE

NO.

DRAWING NUMBER DRAWING TITLE

SM

10/12/2021

REVISIONS CHECKED DATE PROJECT # DRAWN

PROJECT TITLE

MMB-013-22

M-3

SPRING HILL ELEMENTARY

SCHOOL

ZONED FLOOR PLAN AND HVAC LAYOUT

8201 Lewinsville Road, McLean, VA, 22102

RTU-8 RTU-7

M

RV-4

M

RV-3

RTU-9

T

M

RV-1

M

RV-2

RTU-16 RTU-15

Tovd

T^ovd

T

EF-48 EF-49

EF-51 EF-50

RTU-5

CUH-1 CUH-2

CUH-3 CUH-4 CUH-5

UH-1

UH-2 UH-3

UH-4 FTR-1

FTR-2

FTR-3 FTR-4

M M

EF-10 Kitchen hood

EF-42

EF-41 EF-40

EF-44 EF-38

EF-31 EF-39

T T

T T T T T

T T

TT T

T T

TT

RTU-10

T

RTU-11

EF-34 RTU-8

RTU-7 EF-37

FTR-6 FTR-5

FTR-7 FTR-8 FTR-9 FTR-10 FTR-11 FTR-12 FTR-13

T

RTU-11

RTU-5 RTU-10

T T T T

T T

DHC-1

RTU-12

RTU-13

T

T T

T

RTU-14

FC-7 FC-8 FC-1 FC-2

FC-3FC-4

FC-5 FC-6 UV- 115

T T

T

T T

RAHU-8 RAHU-7

RAHU-9

UV- 113 UV- 111 UV- 109 UV- 107 UV- 105 UV- 103

UV- 108 UV- 106 UV- 104

UV- 102 UV- 1

UV- 100

UV- 101 FC-9

T

T T T

T T T T T

T

CUH-6

T

CUH-7

T

UH-5

EF-23 EF-22 EF-21

EF-45 EF-24

EF-19 EF-18

TT

EF-46 EF-47

EF-13

EF-14 EF-12

EF-25

FC-10

T T

T T T

Ducts up to RAHU-3

Ducts up to RAHU-2

UV- 117 UV- 119

UV- 112 FC-11

FC-12 FC-13 FC-14

UV- 114 UV- 116

CUH-8

T

T T

T T T

T T

RTU-3 RTU-4

T

RAHU-6

FC-15 FC-16

T

FC-17T

TFC-18

UV- 2 UV- 3

CUH-9

T CUH-10

CUH-11

CUH-12

T

CUH-13

T

CUH-14

T

T T

EF-43

EF-16

EF-33 EF-29

EF-30 EF-17

ERU-1

RAHU-5

RAHU-4 RAHU-3 RAHU-2

T T

T

UV- 206 UV- 205

Ducts down to first floor

UV- 208 UV- 210

RAHU-1

UV- 200 UV- 202 UV- 204 UV- 212

UV- 201 UV- 203 UV- 207 UV- 209 UV- 211

FC-19 FC-20 FC-21

CUH-15

CUH-16 CUH-17

CUH-18

EF-11 EF-1 EF-9

EF-26

EF-3

EF-2

EF-27

EF-28

EF-4

EF-7 EF-6

EF-5

EF-36 EF-35

T T

T

T T

RTU-2 RTU-1

VAV-5

VAV-1 VAV-4

VAV-6

VAV-2 VAV-3

VAV-7

VAV-13

VAV-12 VAV-8

VAV-9

VAV-10 VAV-11

SP

Chiller-1

(On ground)

EF-52 EF-53

EF-57 EF-54

EF-55 EF-56

T

T T T T

T T

T T T

T

T T

CUH-19 CUH-20

Mechanical Room Layout

NOT TO SCALE

CHWP -P2 CHWP -P1 UH-7

T

2 1

3

4 5 6

6

7 7 8

9 11 10

Outside Air Sensor location

5

SYMBOLS AND ABBREVIATIONS

RTU - ROOF TOP UNIT; AHU-AIR HANDLING UNIT; RAHU-ROOFTOP AIR HANDLING UNIT;

ERU - ENERGY RECOVERY UNIT

VARIABLE AIR VOLUME FAN POWERD TERMINAL UNIT WITH DUCT HEATING COIL UV - UNIT VENTILATOR

FC - FAN COIL UNIT EF - EXHAUST FAN

CH/UH - CABINET HEATER/UNIT HEATER FTR- FINNED TUBE RADIATION

BAS - BUILDING AUTOMATION SYSTEM SPACE TEMPERATURE SENSOR (BAS) LINE VOLTAGE THERMOSTAT

CO2 - CARBON DIOXIDE SENSOR SPACE HUMIDITY SENSOR (BAS) ZONE - HVAC CONTROL ZONE NUMBER

SPACE SENSOR (BAS) WITH LOCAL OVERRIDE DP - DIFFERENTIAL PRESSURE TRANSMITTER MOTORIZED DAMPER

DHC- DUCT HEATING COIL OCCUPANCY SENSOR

DUCT STATIC PRESSURE SENSOR

RV-RELIEF VENT WITH MOTORIZED DAMPER T

T

1

C

Tovd

M

O

SP

H

ovd

M

12

O

EF-58 T

T

EF-28

EF-7

T

T EF-1

EF-15

T M

EF-20

EF-32

T

C

O

EF-8 RTU-12

DHC-1

Boiler Boiler

Boiler-1

Boiler-2

HWP-P3

HWP-P4 UH-5

UH-6

Boiler Room Layout

NOT TO SCALE

T

ZONES - AREA SERVED 1 - ADMIN OFFICES

2 - CAFETERIA/KITCHEN 3- GYMNASIUM

4 - STAGE 5 - LIBRARY 6 - CLASSROOMS 7 - CLASSROOMS

8 - CLASSROOMS, VAV SECTION 9 - CLASSROOMS

10 - CLASSROOMS, SECOND FLOOR 11 - SACC ROOMS

12 - INSTRUMENT ROOM

MAIN HOT WATER SYSTEM SERVES ZONES 1, 2, 6, 7, 8, 10 ACTIVATE CHILLER-1 FOR ZONES 6, 7, 10

EQUIPMENT CONTROLLED BY BAS - RTU - 11; EF - 34, 41

- RTU - 5, 7, 8; EF - 20, 37, 39, 40; CUH - 1, 2, 3, 4, 5 - RTU - 3, 4; EF - 17, 29, 30, 33

- RTU - 9 - RTU - 12, 13

- RAHU - 2, 3, 6; EF - 2, 3, 6, 16, 26, 27, 35, 36, 37, 43; CUH - 4, 5, 8, 11, 14

- RAHU - 7, 8, 9; RTU - 14; EF - 18, 12, 14, 19, 21, 22, 23, 24, 25, 45, 46, 47; CUH - 6 - RTU - 1, 2; EF - 52, 53, 54, 55, 56, 57; CUH - 19, 20

- ERU - 1; EF - 50, 51;

- RAHU - 1, 4, 5; EF - 4, 5, 9, 11; CUH - 17, 18 - RTU - 15, 16; EF - 48, 49

- RTU - 10 Project Notes:

Install line voltage motor rated on/off switch in parallel with new LVT to control EF- 13 on wall in kiln room, install

necessary power conductors and conduit; remove existing control relay and complete power circuit

For all equipment controlled by LVT and/or or wall switch only, remove existing BAS control relay and complete power circuit. Install new EMT conduit and power conductors from the power source to LVT and the unit as necessary to complete the installation.

Replace existing 3-way HW mixing valve with new. Replace pneumatic actuator with new spring return electronic actuator.

Install VFD for chilled water pumps P-1 and P-2 and hot water pumps P-3 and P-4.

Install isolation ball valves for the Hot Water Pump P-3 and P-4 VFD DP transmitter tubes on top of 4" main HW supply HW return lines going to the building in boiler room. Install DP transmitter in boiler room at the indicated location.

For all EFs controlled by BAS: keep existing wall switch in place if applicable.

Interlock motorized outdoor air intake damper with exhaust fan

Remove existing CO2 sensors for RTU - 7 and 8. Provide and install one new CO2 sensor to control both RTUs.

New BAS shall enable and disable ERU - 1 on Zone 9 schedule via a physical output.

Electric meter location Gas meter location Water meter location

Hot Water System and RTU - 5, 7, 8, 9, 10 BAS control panels' existing location.

Chilled Water System BAS control panels' existing location.

RAHU - 7, 8, 9 and RTU - 14 BAS control panels' existing location RTU - 11 BAS control panels' existing location.

RTU - 12, 13 BAS control panels' existing location.

RAHU - 6 and RTU - 3, 4 BAS control panels' existing location RTU - 15, 16 BAS control panels' existing location

RAHU - 1, 2, 3 BAS control panels' existing location RAHU -3, 4 BAS control panels' existing location

Install new BAS control panels for corresponding equipment at existing locations wherever possible. If the installation is impossible due to space constrictions, install at alternative locations approved by FCPS project manager.

Contractor shall make information regarding MAC addresses pertinent to controllers installed within each control panel available within the panel.

Connect each RAHU, RTU and Hot Water System, and Chilled Water System Ethernet network controller to a designated FCPS WAN Ethernet port on the drop provided and installed by FCPS adjacent to control panels at the locations indicated herein.

1 2 3 4 5 6 7 8 9

10 11 12 13 14 15 17 16 18

S

1 4 3

5 7 7

7

8

4

H H

H

H H H

H

H H H H H

H

H H

H

H H H H

H H

H H H

H

H H H

H H

O O

O O O

O O O O

O

O O O

O

O O

O O O

O O

O

O O O

O O

4"

C

10 11

12 13 14

15 16 17

18

19

19 20 21 20

21

22

23

24

(5)

DESCRIPTION DATE

NO.

DRAWING NUMBER DRAWING TITLE

SM

10/12/2021

REVISIONS CHECKED DATE PROJECT # DRAWN

PROJECT TITLE

MMB-013-22

M-4

SPRING HILL ELEMENTARY

SCHOOL

HOT WATER PLANT, CHILLER-1

8201 Lewinsville Road,

McLean, VA, 22102

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DESCRIPTION DATE

NO.

DRAWING NUMBER DRAWING TITLE

SM

REVISIONS CHECKED DATE PROJECT # DRAWN

PROJECT TITLE

M-5

SPRING HILL ELEMENTARY

SCHOOL

RTU-1, 2

CONTROL DIAGRAMS

MMB-013-22 10/12/2021

8201 Lewinsville Road,

McLean, VA, 22102

(7)

DESCRIPTION DATE

NO.

DRAWING NUMBER DRAWING TITLE

SM

REVISIONS CHECKED DATE PROJECT # DRAWN

PROJECT TITLE

M-6

SPRING HILL ELEMENTARY

SCHOOL

ROOFTOP UNITS 3, 4, 11, 14 CONTROL

DIAGRAMS

8201 Lewinsville Road, McLean, VA, 22102

MMB-013-22

10/12/2021

(8)

DESCRIPTION DATE

NO.

DRAWING NUMBER DRAWING TITLE

SM

REVISIONS CHECKED DATE PROJECT # DRAWN

PROJECT TITLE

M-7

SPRING HILL ELEMENTARY

SCHOOL

ROOFTOP UNITS 7, 8, 12 CONTROL

DIAGRAMS

8201 Lewinsville Road, McLean, VA, 22102

MMB-013-22

10/12/2021

(9)

DESCRIPTION DATE

NO.

DRAWING NUMBER DRAWING TITLE

SM

REVISIONS CHECKED DATE PROJECT # DRAWN

PROJECT TITLE

M-8

SPRING HILL ELEMENTARY

SCHOOL

ROOFTOP UNITS 9, 10, 15, 16 CONTROL

DIAGRAMS

8201 Lewinsville Road, McLean, VA, 22102

MMB-013-22

10/12/2021

(10)

DESCRIPTION DATE

NO.

DRAWING NUMBER DRAWING TITLE

SM

REVISIONS CHECKED DATE PROJECT # DRAWN

PROJECT TITLE

M-9

SPRING HILL ELEMENTARY

SCHOOL

ROOFTOP UNITS 5, 13; RAHUs 1 - 9

CONTROL DIAGRAMS

8201 Lewinsville Road, McLean, VA, 22102

MMB-013-22

10/12/2021

(11)

DESCRIPTION DATE

NO.

DRAWING NUMBER DRAWING TITLE

SM

REVISIONS CHECKED DATE PROJECT # DRAWN

PROJECT TITLE

M-10

SPRING HILL ELEMENTARY

SCHOOL

UV, FCU, VAV

CONTROL DIAGRAMS

MMB-013-22 10/12/2021

8201 Lewinsville Road,

McLean, VA, 22102

(12)

DESCRIPTION DATE

NO.

DRAWING NUMBER DRAWING TITLE REVISIONS

CHECKED DATE PROJECT # DRAWN

PROJECT TITLE

M-11

SM

MISC EQUIPMENT CONTROL DIAGRAMS

SPRING HILL ELEMENTARY

SCHOOL

MMB-013-22

ZONES - AREA SERVED

1 - ADMIN OFFICES

2 - CAFETERIA/KITCHEN 3 - GYMNASIUM

4 - STAGE 5 - LIBRARY

6 - CLASSROOMS 7 - CLASSROOMS

8 - CLASSROOMS, VAV SECTION 9 - CLASSROOMS

10 - CLASSROOMS, SECOND FLOOR 11-SACC

12-INSTRUMENT ROOM

10/12/2021

8201 Lewinsville Road,

McLean, VA, 22102

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