N4008519B0095 Drawings_Part6.pdf

02/24/2020

The Walker Group Architecture, Inc PO Box 541, New Bern, NC 28563

252.636.8778 (PHONE)

252.636.8992 (FAX)

WALKER

GROUP

i n c o r p o r a t e d the

ARCHITECTURE

DISCLOSURE OF INFORMATION

CONTRACTOR SHALL COMPLY AS FOLLOWS:

(A) THE CONTRACTOR SHALL NOT RELEASE TO ANYONE OUTSIDE THE CONTRACTOR'S ORGANIZATION ANY UNCLASSIFIED INFORMATION, REGARDLESS OF MEDIUM (E.G., FILM, TAPE, DOCUMENT), PERTAINING TO ANY PART OF THIS CONTRACT OR ANY PROGRAM RELATED TO THIS CONTRACT, UNLESS-

(1) THE CONTRACTING OFFICER HAS GIVEN PRIOR WRITTEN APPROVAL; OR

(2) THE INFORMATION IS OTHERWISE IN THE PUBLIC DOMAIN BEFORE THE DATE OF RELEASE

(B) REQUESTS FOR APPROVAL SHALL IDENTIFY THE SPECIFIC INFORMATION TO BE RELEASED, THE MEDIUM TO BE USED, AND THE PURPOSE FOR THE RELEASE. THE CONTRACTOR SHALL

SUBMIT ITS REQUEST TO THE CONTRACTING OFFICER AT LEAST 45 DAYS BEFORE THE PROPOSED DATE FOR RELEASE.

(C) THE CONTRACTOR AGREES TO INCLUDE A SIMILAR REQUIREMENT IN EACH SUBCONTRACT UNDER HIS CONTRACT. SUBCONTRACTORS SHALL SUBMIT REQUESTS FOR AUTHORIZATION

TO RELEASE THROUGH THE PRIME CONTRACTOR TO THE CONTRACTING OFFICER.

DUCTLESS SPLIT SYSTEM HEAT PUMP SCHEDULE

COIL E.A.T. FAN DATA HEATING DATA ELECTRIC DATA INDOOR UNIT ELECTRIC DATA OUTDOOR UNIT

TOTAL COOLING SUPPLY TOTAL E.A.T.

TAG LOCATION CAPACITY M.B.H. ºF D.B. ºF W.B. AIR C.F.M. M.B.H (ºF) M.C.A. M.O.C.P. VOLTS PHASE TAG M.C.A. M.O.C.P. VOLTS PHASE REMARKS

DSS-1A TELECOM 9.0 80.0 67.0 265 12.0 70.0 INDOOR UNIT POWERED BY OUTDOOR UNIT DSS-1B 9.0 15.0 208 1 SEE NOTES

NOTES:

1. COOLING CAPACITY BASED ON 96º F AMBIENT, HEATING CAPACITY BASED ON 17° F.

2. PROVIDE INDOOR UNIT WITH COIL FREEZE PROTECTION, REMOTE MOUNTED THERMOSTAT, HIGH SIDE WALL CASSETTE CONFIGURATION, AND INTEGRAL CONDENSATE PUMP (5FT HEAD).

3. PROVIDE OUTDOOR UNIT WITH LOW AMBIENT CONTROL.

AIR CONTROL SCHEDULE

AIR SEPARATOR EXPANSION TANK

MAX. CAPACITY ACCEPTED APPROX. APPROX.

SYSTEM TAG G.P.M. P.D. FT. SIZE TAG (GAL.) CAPACITY (GAL.) DIAMETER HEIGHT REMARKS

HOT WATER AS-1 49.4 0.6 2 ET-1 13 11 12 38 SEE NOTES

NOTES:

1. PROVIDE COALESCING TYPE AIR SEPARATOR WITH HIGH CAPACITY AIR VENT.

2. PROVIDE VERTICAL BLADDER TYPE EXPANSION TANK WITH FLOOR SKIRT, PRE-CHARGE TO 25 PSIG.

PUMP SCHEDULE

HEAD ELECTRICAL DATA

TAG SERVICE TYPE CONTROL G.P.M. (FT.) H.P. VOLTS PHASE R.P.M. REMARKS

SHWP-1 SECONDARY HOT WATER INLINE VFD 49.4 25.0 3/4 208 3 1800 SEE NOTES

SHWP-2 SECONDARY HOT WATER INLINE VFD 49.4 25.0 3/4 208 3 1800 SEE NOTES

NOTES:

1. PROVIDE NON-OVERLOADING MOTOR SELECTION.

2. PROVIDE INVERTER DUTY RATED MOTOR SUITABLE FOR USE WITH A VFD.

AIR COOLED CHILLER SCHEDULE

CAPACITY EVAPORATOR CONDENSER FAN COMPRESSOR ELECTRICAL DATA

TAG (TONS) G.P.M. P.D. (FT.) E.W.T. (°F) L.W.T. (°F) QUANTITY F.L.A. TYPE QUANTITY R.L.A. M.C.A. M.O.C.P. VOLTS PHASE REMARKS

AC-1 80 104.6 6.2 58.2 42 6 39.4 SCROLL 4 73.9 388 450 208 3 SEE NOTES

NOTES:

1. PROVIDE WITH CONTROL VOLTAGE TRANSFORMER AND SEPARATE 120 VOLT CIRCUIT FOR EVAPORATOR HEAT TAPE.

2. PROVIDE MANUFACTURER'S PUMPING PACKAGE WITH DUAL 10.2 HP (SIZED FOR 40 FT. HEAD) PUMPS WITH INVERTER DUTY RATED MOTORS SUITABLE FOR USE WITH VARIABLE FREQUENCY DRIVES, STRAINERS, CHECK VALVES, EXPANSION TANK, AIR SEPARATOR, AND 156 GAL. BUFFER TANK. PUMPS SHALL BE CONSTRUCTED OF MANUFACTURER'S STANDARD MATERIALS SUITABLE FOR CHILLED WATER, AND PROVIDED WITH MECHANICAL SEALS, DRIP PROOF ELECTRIC MOTOR, AND NON-OVERLOADING SELECTION.

3. PROVIDE INTEGRAL CIRCUIT BREAKER, CONTROL VOLTAGE TRANSFORMERS, PUMPS, AND SEPARATE 120V CIRCUITS FOR EVAPORATOR PIPING HEAT TAPE AND BUFFER TANK HEAT TAPE.

4. PROVIDE WITH 4 STAGES OF UNLOADING. MINIMUM EFFICIENCY AT AHRI CONDITIONS: 9.066 EER / 13.527 NPLV.

5. PROVIDE WITH BACNET MS/TP INTERFACE, CONDENSER COIL GUARDS, WIDE AMBIENT CONDENSER CONTROL, AND 410A REFRIGERANT.

6. PROVIDE PHASE MONITORS FOR ALL 3 PHASE EQUIPMENT: PHASE UNBALANCE PROTECTION, OVER/UNDER VOLTAGE PROTECTION, PHASE LOSS PROTECTION, DELAY OF BREAK TIMER TO DELAY AUTOMATIC RESTARTS, NON-CRITICAL FAULT DELAY, PROGRAMMABLE AUTO/MANUAL RESTART, AND LOAD AND LINE SLIDE MONITORING.

7. CONDENSER COILS SHALL MEET 3000 HOUR SALT SPRAY TEST IN ACCORDANCE WITH ASTM B117-90.

8. EACH CIRCUIT SHALL BE PROVIDED WITH LIQUID AND SUCTION LINE SERVICE VALVES AND CORE FILTER DRIER ON THE LIQUID LINE.

9. CAPACITY BASED ON 96°F AMBIENT TEMPERATURE.

HOT WATER BOILER SCHEDULE

INPUT OUTPUT L.W.T. E.W.T. ELECTRICAL DATA

TAG FUEL (M.B.H.) (M.B.H.) G.P.M. (ºF) (ºF) M.C.A. M.O.C.P. VOLTS PHASE REMARKS

B-1 NATURAL GAS 285.0 270.8 24.7 120 100 4.5 3.6 120 1 SEE NOTES

B-2 NATURAL GAS 285.0 270.8 24.7 120 100 4.5 3.6 120 1 SEE NOTES

NOTES:

1. PROVIDE SUITABLE FOR 2 PSIG GAS PRESSURE.

2. PROVIDE SUITABLE FOR 80 PSI WORKING PRESSURE.

3. PROVIDE ALL TRIM AND APPURTENANCES RECOMMENDED FOR INDICATED APPLICATION.

4. PROVIDE BOILERS WITH INLINE PRIMARY HOT WATER PUMP RATED FOR 24.7 GPM AND 15 FT OF HEAD

5. PROVIDE MANUFACTURER'S CONDENSATE NEUTRALIZATION KIT.

SHUT OFF V.A.V. TERMINAL BOX SCHEDULE (HOT WATER)

VOL. REG. C.F.M. MAX INLET HEATING COIL

INLET S.P. W.P.D. A.P.D.

TAG SIZE (IN.) MIN. MAX. (IN. WG.) M.B.H. G.P.M. E.W.T. L.W.T. (FT. WG.) (IN. WG.) REMARKS

VAV-1 10" 290 960 0.5 21.0 2.50 120 103.0 0.34 0.55 SEE NOTES

VAV-2 6" 85 270 0.5 6.5 0.70 120 101.2 0.04 0.20 SEE NOTES

VAV-3 4" 70 225 0.5 5.7 0.59 120 100.6 0.03 0.15 SEE NOTES

VAV-4 12" 370 1230 0.5 29.1 3.20 120 101.7 0.59 0.49 SEE NOTES

VAV-5 12" 370 1230 0.5 29.1 3.20 120 101.7 0.59 0.49 SEE NOTES

VAV-6 6" 95 315 0.5 7.4 0.82 120 101.9 0.05 0.26 SEE NOTES

VAV-7 6" 120 400 0.5 9.6 1.04 120 101.5 0.05 0.52 SEE NOTES

VAV-8 6" 105 340 0.5 8.5 0.89 120 100.8 0.04 0.39 SEE NOTES

VAV-9 4" 45 145 0.5 3.5 0.38 120 101.2 0.02 0.05 SEE NOTES

NOTES:

1. HEATING COIL SELECTION BASED ON 55ºF E.A.T. AT 80% OF MAX. AIRFLOW.

2. SELECT UNITS FOR MAXIMUM NOISE CRITERIA OF 35.

AIR HANDLING UNIT SCHEDULE

SUPPLY FAN DATA CHILLED WATER COOLING COIL DATA HOT WATER HEATING COIL DATA

S.A. O.A. ELECTRICAL DATA TOTAL SENS. MAX. TOTAL MAX.

C.F.M. C.F.M. E.S.P. FAN

M.C.A. M.O.C.P.

CAPACITY CAPACITY E.D.B. E.W.B. E.W.T. L.W.T. W.P.D. CAPACITY E.D.B. E.W.T. L.W.T. W.P.D.

TAG TYPE (MAX./MIN.) (MAX./MIN.) (IN. WG.) H.P. TYPE VOLTS PHASE M.B.H. M.B.H. (ºF) (ºF) (ºF) (ºF) G.P.M. (FT. WG.) M.B.H. (ºF) (ºF) G.P.M. (ºF) (FT. WG.) REMARKS AHU-1 SZ VAV 10275/ 3085 2850/1425 1.25 10 DIRECT 208 37 60 3 526.6 288.2 79.3 69.9 42 57 70.0 8.6 296.1 54.0 120 29.7 100 0.4 SEE NOTES AHU-2 MZ VAV 5115 / 1535 1300/775 2.00 7.5 DIRECT 208 28 50 3 260.7 142.3 79.2 69.9 42 57 34.6 5.6 52.7 26.0 120 5.3 100 0.1 SEE NOTES

NOTES:

1. LEAVING AIR TEMPERATURE IS TO BE PROVIDED AT THE UNIT DISCHARGE, TOTAL & SENSIBLE CAPACITIES ARE "NET" VALUES TO BE PROVIDED DOWNSTREAM OF THE SUPPLY AIR FAN.

2. PROVIDE INVERTER DUTY RATED MOTOR AND VFD.

3. PROVIDE AHU-1 WITH THE FOLLOWING SECTIONS: MERV 8 FILTER, MIXING BOX, ACCESS PANEL, COOLING COIL, ACCESS PANEL, REHEAT COIL, ACCESS PANEL, AND FAN.

4. PROVIDE AHU-2 WITH THE FOLLOWING SECTIONS: MERV 8 FILTER, MIXING BOX, ACCESS PANEL, PREHEAT COIL, ACCESS PANEL, COOLING COIL, ACCESS PANEL, AND FAN.

5. PROVIDE AIR HANDLER UNITS WITH BACNET MS/TP INTERFACE.

FAN SCHEDULE

E.S.P. ELECTRICAL DATA

TAG LOCATION FAN TYPE C.F.M. (IN. WG.) DRIVE H.P. WATTS VOLTS PHASE REMARKS

EF-1 UNISEX 107 CABINET 75 0.3 DIRECT - 16 120 1 SEE NOTES

EF-2 UNISEX 312 CABINET 75 0.3 DIRECT - 16 120 1 SEE NOTES

EF-3 MENS 305/ WOMENS 306 INLINE 500 0.5 DIRECT 1/8 - 120 1 SEE NOTES

EF-4 MECH 110 SIDEWALL PROPELLER 550 0.3 DIRECT 1/8 - 120 1 SEE NOTES

EF-5 MECH/ELEC 309 INLINE 335 0.3 DIRECT 1/25 - 120 1 SEE NOTES

NOTES:

1. PROVIDE DIRECT DRIVE FANS WITH ELECTRONIC SPEED CONTROLLER.

2. PROVIDE INLINE FANS WITH CHATTERPROOF BACKDRAFT DAMPER, INTEGRAL ELECTRICAL DISCONNECT, AND GALVANIZED STEEL HOUSING.

3. PROVIDE CABINET CEILING FANS WITH CHATTERPROOF BACKDRAFT DAMPER, INTEGRAL ELECTRICAL DISCONNECT, DUCT FLANGE, AND INTEGRAL

OFF-WHITE ALUMINUM INTAKE GRILLE.

UNIT HEATER SCHEDULE

NOMINAL INPUT OUTPUT

TAG TYPE CFM WATTS MBH MBH MOTOR HP VOLTS PHASE REMARKS

UH-1 GAS-FIRED 505 - 30 24 1/15 120 1 SEE NOTES

UH-2 ELECTRIC 380 3000 - - 1/40 208 1 SEE NOTES

NOTES:

1. PROVIDE UH-1 WITH SINGLE STAGE COMBINATION GAS VALVE AND HORIZONTAL CONCENTRIC VENT OUTLET.

2. PROVIDE WITH REMOTE-WIRED THERMOSTAT, PROPELLER FAN, AND ADJUSTABLE HORIZONTAL LOUVERS.

LOUVER SCHEDULE

MIN. FREE AREA

TAG SERVICE SIZE (IN.) WxH (SF) C.F.M. SERVES REMARKS L-1 INTAKE 52x32 5.9 2850 AHU-1 SEE NOTES

L-2 INTAKE 40X24 2.8 1300 AHU-2 SEE NOTES

L-3 EXHAUST 10X10 0.19 75 EF-1, EF-2 SEE NOTES

L-4 EXHAUST 12X12 0.3 180 KITCHEN SEE NOTES

L-5 INTAKE 24x20 1.2 550 MECH 110 SEE NOTES L-6 INTAKE 20x18 0.7 335 MECH/ELEC 309 SEE NOTES L-7 EXHAUST 20x18 0.9 600 EF-3 SEE NOTES L-8 EXHAUST 18x14 0.5 335 EF-5 SEE NOTES L-9 RELIEF 48x48 8.8 2500 AHU-1 SEE NOTES L-10 EXHAUST 18x18 0.8 550 EF-4 SEE NOTES

NOTES:

1. PROVIDE INSECT SCREEN FOR INTAKE SERVICE, BIRDSCREEN FOR EXHAUST SERVICE.

2. PROVIDE ALUMINUM STORMPROOF CONSTRUCTION.

3. PROVIDE COLOR CHART FOR FINISH SELECTION BY COTR.

4. LOUVERS SHALL BE MIAMI-DADE COUNTY APPROVED, LISTED FOR AMCA 550 FOR WIND-DRIVEN RAIN RESISTANCE.

5. INTAKE LOUVERS SHALL BE AT MINIMUM 10 FEET ABOVE FINISHED FLOOR.

GRILLE, REGISTER & DIFFUSER SCHEDULE

C.F.M. NECK MAX.

TAG TYPE SERVICE RANGE SIZE P.D. REMARKS

A REGISTER SUPPLY 435 18x6 0.1 20 x 8 PANEL, DUCT MOUNTED, DRUM LOUVER, 3" BLADE SPACING C DIFFUSER SUPPLY 115 - 230 8"Ø 0.1 LAY IN, 24 x 24 PANEL, 4-WAY BLOW PATTERN D DIFFUSER SUPPLY 235 - 380 10"Ø 0.1 LAY IN, 24 x 24 PANEL, 4-WAY BLOW PATTERN E REGISTER SUPPLY 40 6x6 0.1 SURFACE MOUNTED, SINGLE DEFLECTION, 3/4" BLADE SPACING F REGISTER SUPPLY 100 6x6 0.1 8 x 8 PANEL, DUCT MOUNTED, DOUBLE DEFLECTION, 3/4" BLADE SPACING G REGISTER SUPPLY 200 16x6 0.1 SURFACE MOUNTED, SINGLE DEFLECTION, 3/4" BLADE SPACING K GRILLE RETURN 50 - 200 8 x 8 0.1 LAY IN, 24 x 24 PANEL, 35 DEG DEFLECTION, 1/2" BLADE SPACING L GRILLE RETURN 205 - 350 10 x 10 0.1 LAY IN, 24 x 24 PANEL, 35 DEG DEFLECTION, 1/2" BLADE SPACING M GRILLE RETURN 750 - 950 16 x 16 0.1 LAY IN, 24 x 24 PANEL, 35 DEG DEFLECTION, 1/2" BLADE SPACING N GRILLE RETURN 555 - 745 14 x 14 0.1 LAY IN, 24 x 24 PANEL, 35 DEG DEFLECTION, 1/2" BLADE SPACING O GRILLE RETURN 3850 46x34 0.1 48 x 36 PANEL, HEAVY DUTY, 30 DEG DEFLECTION, 3" BLADE SPACING T GRILLE EXHAUST 115-250 10x10 0.1 24 x 24 PANEL, 35 DEG DEFLECTION, 3/4" BLADE SPACING U GRILLE TRANSFER - 38x38 0.1 40x40 PANEL, HEAVY DUTY, 30 DEG DEFLECTION, 3" BLADE SPACING V GRILLE EXHAUST 50 6x6 0.1 12x12 PANEL, 35 DEG DEFLECTION, 3/4" BLADE SPACING

THE FOLLOWING NOTES ARE TYPICAL UNLESS OTHERWISE NOTED:

1. PROVIDE ALUMINUM DIFFUSERS AND REGISTERS WITH OPPOSED BLADE VOLUME DAMPERS, BAKED STANDARD WHITE ENAMEL FINISH (INCLUDING HEAD OF SCREWS), MAXIMUM NC=25 AT HIGHEST CFM AND PROVIDE SQUARE TO ROUND TRANSITION AS REQUIRED.

2. PROVIDE 4-WAY PATTERN CEILING DIFFUSERS, U.O.N. ON PLANS OR SCHEDULE.

3. MAXIMUM PRESSURE DROP SHALL INCLUDE VOLUME DAMPER WHERE DAMPER IS PROVIDED.

4. "A" TYPE REGISTER SHALL BE PAINTED DARK BROWN AND SHALL BE PROVIDED WITH PAINT GRIP FINISH. SEE ARCHITECTURAL DRAWINGS/SPECIFICATIONS FOR PAINTING REQUIREMENTS.

5. CONTRACTOR SHALL CONFIRM EXISTING OPENING DIMENSION OF TYPE "O" PRIOR TO ORDERING.

KITCHEN EXHAUST HOOD SCHEDULE

TAG LENGTH WIDTH

MINIMUM ELECTRICAL REMARKSEXHAUST

C.F.M. VOLTS PHASE AMPS

H-1 30" 20" 180 120 1 1.6 SEE NOTES

NOTES:

1. PROVIDE CONTROL PANEL FOR SINGLE POWER POINT CONNECTION, LIGHTS, ALUMINUM GREASE FILTERS, ADJUSTABLE FAN AND LIGHT CONTROL, CONVERTIBLE DISCHARGE CONNECTION, STAINLESS STEEL CONSTRUCTION, AND ENERGY STAR QUALIFIED.

PO Box 541, New Bern, NC 28563

252.636.8778 (PHONE)

252.636.8992 (FAX)

WALKER

GROUP

i n c o r p o r a t e d the

ARCHITECTURE

DISCLOSURE OF INFORMATION

CONTRACTOR SHALL COMPLY AS FOLLOWS:

(A) THE CONTRACTOR SHALL NOT RELEASE TO ANYONE OUTSIDE THE CONTRACTOR'S ORGANIZATION ANY UNCLASSIFIED INFORMATION, REGARDLESS OF MEDIUM (E.G., FILM, TAPE, DOCUMENT), PERTAINING TO ANY PART OF THIS CONTRACT OR ANY PROGRAM RELATED TO THIS CONTRACT, UNLESS-

(1) THE CONTRACTING OFFICER HAS GIVEN PRIOR WRITTEN APPROVAL; OR

(2) THE INFORMATION IS OTHERWISE IN THE PUBLIC DOMAIN BEFORE THE DATE OF RELEASE

(B) REQUESTS FOR APPROVAL SHALL IDENTIFY THE SPECIFIC INFORMATION TO BE RELEASED, THE MEDIUM TO BE USED, AND THE PURPOSE FOR THE RELEASE. THE CONTRACTOR SHALL

SUBMIT ITS REQUEST TO THE CONTRACTING OFFICER AT LEAST 45 DAYS BEFORE THE PROPOSED DATE FOR RELEASE.

(C) THE CONTRACTOR AGREES TO INCLUDE A SIMILAR REQUIREMENT IN EACH SUBCONTRACT UNDER HIS CONTRACT. SUBCONTRACTORS SHALL SUBMIT REQUESTS FOR AUTHORIZATION

TO RELEASE THROUGH THE PRIME CONTRACTOR TO THE CONTRACTING OFFICER.

VAV SHUT-OFF TERMINAL UNITS

GENERAL: AN OVERRIDE SWITCH INTEGRAL TO EACH ZONE TEMPERATURE SENSOR SHALL RETURN THE RESPECTIVE AHU FROM UNOCCUPIED TO OCCUPIED BUT ONLY THE ZONE OVERRIDDEN SHALL RETURN TO OCCUPIED MODE. WHEN ANY OVERRIDE SWITCH IS ENERGIZED, AHU AND ALL VAV BOXES ASSOCIATED WITH THE ZONE OVERRIDDEN SHALL BE ENERGIZED THROUGH DDC CONTROL BUT ONLY THE ZONE OVERRIDDEN SHALL RETURN TO OCCUPIED MODE TEMPERATURE SETPOINTS. AFTER TWO HOURS, THE ZONE SHALL RETURN TO UNOCCUPIED MODE. ENERGIZED AHU AND ALL ASSOCIATED VAV BOXES SHALL BE DE-ENERGIZED UNLESS AHU IS UNDER CONTROL OF ANOTHER ZONE IN OVERRIDE POSITION. REFER TO GLOBAL

TEMPERATURE SETPOINT NOTE THIS SHEET.

COOLING-OCCUPIED: THE ZONE TEMPERATURE SENSOR THROUGH DDC CONTROL SHALL MODULATE THE PRIMARY AIR VALVE IN THE VAV BOX TO MAINTAIN GLOBAL ZONE TEMPERATURE SETPOINT, OPENING THE AIR VALVE ON A RISE IN SPACE TEMPERATURE, OR CLOSING IT ON A FALL IN SPACE

TEMPERATURE, (NOT TO FALL BELOW MINIMUM SCHEDULED PRIMARY AIR QUANTITY).

HEATING-OCCUPIED: THE PRIMARY AIR VALVE SHALL START IN ITS MINIMUM SCHEDULED POSITION THRU DDC CONTROL. THE ZONE TEMPERATURE SENSOR THROUGH DDC CONTROL SHALL MODULATE THE HOT WATER CONTROL VALVE TO MAINTAIN GLOBAL ZONE TEMPERATURE SETPOINT. ON A RISE IN ZONE TEMPERATURE, THE OPPOSITE SHALL OCCUR. IF SPACE TEMPERATURE IS SLOW TO RESPOND, CONTROLLER SHALL MODULATE PRIMARY AIR VALVE OPEN TO A MAX OF 80%. ON A RISE IN ZONE TEMPERATURE, THE OPPOSITE SHALL OCCUR.

COOLING-UNOCCUPIED: THE VAV BOX PRIMARY AIR VALVE SHALL BE FULLY CLOSED UNLESS THE ASSOCIATED AHU SUPPLY FAN IS ENERGIZED. ON A RISE IN ZONE TEMPERATURE ABOVE SETBACK SETPOINT (85°F, ADJ.) THE VAV BOX PRIMARY AIR VALVE SHALL MODULATE TO MAINTAIN SETPOINT. DDC CONTROLLER SHALL MAINTAIN 55°F SUPPLY AIR TEMPERATURE. AHU SHALL REMAIN ENERGIZED UNTIL ZONE SETBACK TEMPERATURE SETPOINT IS ACHIEVED. IF ZONE TEMPERATURE FALLS BELOW SETBACK SETPOINT, VAV BOX SHALL CLOSE AIR VALVE TO MIN. POSITION.

HEATING-UNOCCUPIED: THE VAV BOX PRIMARY AIR VALVE SHALL BE FULLY CLOSED UNLESS THE ASSOCIATED AHU SUPPLY FAN IS ENERGIZED. ON A FALL IN ZONE TEMPERATURE BELOW SETBACK SETPOINT (60°F, ADJ.) THE PRIMARY AIR VALVE SHALL OPEN TO 80%. DDC CONTROLLER SHALL MODULATE VAV BOX HOT WATER CONTROL VALVE TO MAINTAIN ZONE SETBACK TEMPERATURE SETPOINT. IF ZONE TEMPERATURE RISES ABOVE SETBACK

SETPOINT, THE OPPOSITE SHALL OCCUR.

DDC/EMCS SIGNAL-FUNCTION:

ZONE TEMPERATURE SENSOR - AIR VALVE CONTROL, HOT WATER VALVE CONTROL, STATUS, ALARM

OVERRIDE SWITCH - OCCUPIED CONTROL, STATUS

HOT WATER CONTROL VALVE - ZONE TEMPERATURE CONTROL, STATUS

AIR VALVE - ZONE TEMPERATURE CONTROL, STATUS (AIRFLOW)

SUPPLY

TO SPACE

AIR FLOW

TS

OVER-RIDE

PUSH-BUTTON

SENSOR W/

SPACE TEMPERATURE

AIR SUPPLY

PRIMARY VAV BOX

AIR VALVE

HW VALVE CONTROL

AIR VALVE CONTROL

AN

AL

OG

SHUT-OFF VAV TERMINAL UNIT

LOCAL DDC CONTROLLER

SPACE TEMP.

AIRFLOW QUANTITY

DISCHARGE AIR TEMP.

SPACE TEMP. SETPOINT

HWS

HWR

OVERRIDE

AN

AL

OG

DI

GI

TA

L

OUTPUTS

INPUTS

2-WAY CONTROL VALVE U.O.N. PROVIDE 3-WAY

CONTROL VALVE FOR VAV-5 AND VAV-6

AO2

AO1

DI1

AI4

AI3

AI2

AI1

AO2

TS

AI3

DI1

AI2AI1

AO1

AI4

ZONE TEMPERATURE SET POINTS SHALL BE DETERMINED BY A GLOBAL

TEMPERATURE SET POINT. THE ZONE TEMPERATURE SET POINT SHALL BE

MADE ADJUSTABLE BY BUILDING OCCUPANTS +/- 3°F FROM THE GLOBAL SET

POINT. IF AMBIENT TEMPERATURE IS LESS THAN 50°F, THE GLOBAL ZONE

TEMPERATURE SET POINT SHALL BE 70°F. IF AMBIENT TEMPERATURE IS

GREATER THAN 80°F, THE ZONE TEMPERATURE SHALL BE 76°F. IF AMBIENT

TEMPERATURE IS BETWEEN 50°F AND 80°F, THE GLOBAL SET POINT

TEMPERATURE SHALL BE RESET LINEARLY OR IN NO FEWER THAN 3 STEPS.

ZONE TEMPERATURE SET POINT SHALL BE +/- 1°F FROM GLOBAL SET POINT.

GLOBAL TEMPERATURE SETPOINT NOTE:

INPUTS

DI

GI

TA

L

AO1

OUTPUTS

AN

AL

OG

SPEED, %

KWH CONSUMPTION

CURRENT, AMPS

DRIVE STATUS

DRIVE FAULT

DI1

DI2

AI2

AI1

AI3

AN

AL

OG

LOCAL DDC CONTROLLER

VFD

SPEED CONTROL

VFD

AO1 DO1

DI1

DI2

AI1

AI2

AI3

DO1

DI

GI

TA

L

ENABLE/DISABLE

VFD CONTROL DIAGRAM (TYP. U.O.N.)

SCALE: NO SCALE M-701B

VAV SHUT-OFF TERMINAL UNIT CONTROL DIAGRAM (DDC)

SCALE: NO SCALE M-701E

EMERGENCY HVAC

SHUTDOWN

PULL TO

RESET

NOTES:

1. EMERGENCY AIR DISTRIBUTION (LOCATION AS SHOWN ON PLAN

AND AS DETERMINED BY THE CONTRACTING OFFICER).

2. UPON ACTIVATION OF EMERGENCY PUSHBUTTON, ALL AIR

HANDLING UNITS AND EXHAUST FANS EF-1,-2, AND -3 SHALL

BE DISABLED AND REMAIN OFF UNTIL A MANUAL RESET HAS OCCURRED.

3. UPON ACTIVATION OF EMERGENCY PUSHBUTTON,

OUTSIDE AIR DAMPERS FOR AHU-1 AND AHU-2 SHALL CLOSE FULLY.

4. SHUTOFF SWITCH SHALL BE MUSHROOM BUTTON WITH CLEAR

HINGED, PULL TO RESET, LABELED "EMERGENCY HVAC

SHUTDOWN".

EMERGENCY AIR DISTRIBUTION SYSTEM SHUTOFF SWITCH

SEQUENCE OF OPERATION

PER THE REQUIREMENTS OF UFC 4-010-01, SECTION 3-19, THE FACILITY SHALL BE OUTFITTED WITH AN EMERGENCY AIR DISTRIBUTION SYSTEM SHUTOFF SWITCH WHICH SHALL, THROUGH THE DDC SYSTEM, IMMEDIATELY SHUT DOWN ALL AIR DISTRIBUTION SYSTEM COMPONENTS ASSOCIATED WITH AHU-1 AND AHU-2 AND CLOSE ASSOCIATED ISOLATION DAMPERS. THE EMERGENCY SWITCH SHALL ALSO INITIATE AN AUDIBLE ALARM NOTIFICATION. SWITCH SHALL BE ACTIVATED IF BUILDING OCCUPANTS SUSPECT AIRBORNE CONTAMINANTS MAY BE PRESENT IN THE VICINITY OF THE FACILITY. LOCATE THE SHUTOFF SWITCH (OR SWITCHES) SUCH THAT THEY ARE EASILY ACCESSIBLE BY BUILDING OCCUPANTS BY LOCATING THEM ADJACENT TO MANUAL FIRE ALARM PULL STATIONS. A MINIMUM OF ONE SWITCH SHALL BE PROVIDED PER FLOOR. ADDITIONAL SWITCHES SHALL BE PROVIDED AS REQUIRED TO ENSURE THAT THE TRAVEL DISTANCE TO THE NEAREST SHUTOFF SWITCH IS NOT IN EXCESS OF 200 FEET. SHUTOFF SWITCHES SHALL BE WELL LABELED AND BE OF A DIFFERENT COLOR THAN THE FIRE ALARM PULL STATIONS. COORDINATE COLOR AND APPEARANCE REQUIREMENTS OF THE SHUTOFF SWITCHES WITH THE GOVERNMENT PRIOR TO ORDERING.

EMERGENCY AIR DISTRIBUTION SHUT OFF LOCAL DDC CONTROLLER:

1) SHUT-OFF SWITCH STATUS (DI)

2) AUDIBLE ALARM (DO)

3) ENABLE/DISABLE (DO)

HVAC EMERGENCY SHUTOFF SWITCH

SCALE: NO SCALE M-701C

GENERAL: AHU SUPPLY FAN SPEED SHALL BE DETERMINED BY DISCHARGE AIR PRESSURE AND

POLLING OF VAV BOX DAMPER POSITIONS. AIR PRESSURE SETPOINT SHALL BE 1.5" W.G.,

ADJUSTABLE.

COOLING-OCCUPIED/OVERRIDE: AHU SUPPLY FAN SHALL BE ENERGIZED AND RUN CONTINUOUSLY.

OUTSIDE AND RETURN AIR DAMPERS SHALL MODULATE TO MAINTAIN MIN. O.A. FLOW AS MEASURED BY THE OUTSIDE AIR AIRFLOW MEASUREMENT STATION. THE O.A. DAMPER SHALL FULLY STROKE

BEFORE THE R.A. DAMPER STARTS MODULATING. DISCHARGE AIR TEMPERATURE CONTROLLER

SHALL MODULATE THE CHILLED WATER VALVE TO MAINTAIN 53°F (ADJ.) LEAVING AIR TEMPERATURE.

HOT WATER CONTROL VALVE SHALL BE FULLY CLOSED TO COIL. A SUPPLY AIR TEMPERATURE RESET

STRATEGY SHALL BE EMPLOYED. SUPPLY AIR TEMPERATURE SHALL BE RAISED IN ONE DEGREE

INCREMENTS UNTIL ONE ZONE DAMPER IS 90% OPEN. IF OA DRY BULB TEMPERATURE IS 65°F (ADJ.)

OR LOWER, THE SUPPLY AIR TEMPERATURE RESET SHALL BE NO HIGHER THAN 58°F (ADJ.). IF ANY

ZONE DAMPER IS 100% OPEN AND ZONE TEMPERATURE RISES ABOVE SETPOINT, SUPPLY AIR

TEMPERATURE SHALL BEGIN TO RESET LOWER.

COOLING-UNOCCUPIED: UNIT SHALL BE DE-ENERGIZED UNLESS THE AVERAGE OF THE ZONE

TEMPERATURES RISES ABOVE THE SETBACK TEMPERATURE SETPOINT. THE OA DAMPER SHALL BE

CLOSED.

HEATING-OCCUPIED: AHU SUPPLY FAN SHALL BE ENERGIZED AND RUN CONTINUOUSLY. O.A. FLOW

SHALL BE MAINTAINED AS DESCRIBED IN COOLING-OCCUPIED MODE ABOVE. WHEN MIXED AIR

TEMPERATURE DROPS TO 52°F, DISCHARGE AIR TEMPERATURE CONTROLLER THRU DDC CONTROL

SHALL MODULATE THE HOT WATER VALVE TO MAINTAIN 55°F LEAVING AIR TEMPERATURE. THE

CHILLED WATER VALVE SHALL BE FULLY CLOSED TO THE COIL.

HEATING-UNOCCUPIED: IF THE AVERAGE OF THE ASSOCIATED ZONE TEMPERATURES FALLS BELOW

THE HEATING NIGHT SETBACK TEMPERATURE THE AHU SHALL BE ENERGIZED. THE OA DAMPER

SHALL BE FULLY CLOSED. THE SUPPLY FAN SHALL MODULATE TO MAINTAIN DUCT STATIC PRESSURE WHILE THE VAV BOXES ARE INITIALLY AT MAXIMUM AIRFLOW. THE HOT WATER CONTROL VALVE SHALL REMAIN CLOSED UNLESS DISCHARGE AIR TEMPERATURE FALLS BELOW 55°F. ZONE HEATING SHALL BE MAINTAINED AT VAV BOXES. AS VAV BOX ZONES REACH SETPOINT, AIR VALVES SHALL

MODULATE TO MAINTAIN SETPOINT.

TRANSITION FROM OCCUPIED TO UNOCCUPIED: AUTOMATICALLY THRU DDC CONTROL AND PRESET

TIME SCHEDULE. SYSTEM SHALL ALSO BE ABLE TO BE RETURNED TO OCCUPIED MODE FROM

UNOCCUPIED MODE BY THE OPERATOR WORKSTATION. TRANSITION FROM COOLING TO HEATING

SHALL OCCUR WHEN CHILLED WATER CONTROL VALVE IS CLOSED AND MIXED AIR TEMP. FALLS

BELOW 52°F.

PRESSURE PROTECTION: A HIGH PRESSURE TRANSMITTER LOCATED AT THE SUPPLY FAN

DISCHARGE SHALL DE-ENERGIZE THE SUPPLY AIR FAN IF ITS SETPOINT, 5" WG, IS REACHED.

SEQUENCE OF OPERATION

COIL

HOT WATER

FROM VARIABLE

FREQUENCY DRIVE

FREEZESTAT

AIR

OPPOSED

DAMPER

BLADE

FILTER

OUTSIDE

NC

OPPOSED

DAMPER

BLADE

CW

R

NO

HW

R

HW

S

CW

S

NC

SET AT

5" WG

CHILLED WATER

SUPPLY FAN

M

COIL

PRIMARY

AIR

SAFETY CONTROL: SMOKE DETECTOR SHALL BE PROVIDED BY FIRE ALARM

CONTRACTOR. THROUGH DDC CONTROL IT SHALL DE-ENERGIZE THE ASSOCIATED AHU,

SIGNAL FIRE ALARM PANEL AND CLOSE THE OUTSIDE AIR DAMPER UPON THE

DETECTION OF THE PRODUCTS OF COMBUSTION.

FREEZE PROTECTION: IF HOT WATER COIL DISCHARGE AIR TEMPERATURE FALLS

BELOW 40°F DURING HEATING MODE, THE FREEZESTAT SHALL CLOSE THE OUTSIDE AIR

DAMPER, DE-ENERGIZE THE AHU SUPPLY FAN AND FULLY OPEN THE HOT WATER AND

CHILLED WATER VALVES TO COIL.

CONDENSATE HIGH LEVEL PROTECTION: IF CONDENSATE HIGH LEVEL SWITCH IS

ACTIVATED, UNIT SHALL BE DE-ACTIVATED AND AN ALARM INITIATED.

MORNING WARM-UP: AHU SHALL EMPLOY OPTIMUM START PRIOR TO OCCUPIED

STATUS. THE OA DAMPER SHALL BE FULLY CLOSED. THE SUPPLY FAN SHALL MODULATE

TO MAINTAIN DUCT STATIC PRESSURE WHILE VAV BOXES ARE INITIALLY AT MAXIMUM

AIRFLOW. HOT WATER COIL VALVE SHALL BE FULLY OPEN. AS VAV BOX ZONES REACH

SETPOINT, PRIMARY AIR VALVES SHALL MODULATE TO MINIMUM AIRFLOW.

MORNING COOL-DOWN: THE UNIT SHALL EMPLOY OPTIMUM START PRIOR TO OCCUPIED

STATUS, THE UNIT SHALL GO INTO MORNING COOL-DOWN. THE OA DAMPER SHALL

FULLY CLOSE, THE SUPPLY FAN SHALL MODULATE TO MAINTAIN DUCT STATIC

PRESSURE, THE CW VALVE SHALL MODULATE TO MAINTAIN A 53°F (ADJ.) LEAVING AIR

TEMPERATURE AND THE HOT WATER VALVE SHALL BE FULLY CLOSED TO THE COIL.

ASSOCIATED VAV BOX AIR VALVES SHALL INITIALLY BE FULLY OPEN AND THEN

MODULATE TO MAINTAIN SPACE OCCUPIED TEMPERATURE SETPOINT, VAV BOX HW

VALVES SHALL BE FULLY CLOSED TO THE COIL.

ALARMS: ALARM IF LEAVING AIR TEMPERATURE EXCEEDS 60°F IN COOLING MODE OR

DROPS BELOW 50°F IN HEATING MODE. ALARM IF AHU SUPPLY FAN FAILS TO START OR

FAILS DURING OPERATION. ALARM IF UNIT DISCHARGE STATIC PRESSURE EXCEEDS 5"

W.G. ALARM IF CONDENSATE REACHES HIGH LEVEL. ALARM UPON SMOKE DETECTOR

ACTIVATION.

DEMAND CONTROL VENTILATION: IF ANY SPACE CARBON DIOXIDE LEVEL FALLS BELOW

SETPOINT (1,000 PPM, ADJ.), THE OUTSIDE AIRFLOW RATE SHALL BE AT THE MINIMUM

SCHEDULED VALUE AS INDICATED IN THE EQUIPMENT SCHEDULE. AS LEVEL INCREASES

ABOVE SETPOINT, THE OUTSIDE AIR DAMPER SHALL PROPORTIONALLY MODULATE

OPEN TO GENERATE THE SCHEDULED MAX OUTSIDE AIRFLOW RATE OVER A 1 HOUR

(ADJ.) TIME PERIOD UNTIL THE LEVEL FALLS BELOW THE SETPOINT, AFTER WHICH THE

DAMPER POSITION SHALL RETURN TO MINIMUM.

INPUTS

DI

GI

TA

L

HW VALVE CONTROL

CW VALVE CONTROL

A02

AO1

OUTPUTS

A03AN

AL

OG

SUPPLY AIR FAN STATUS

SMOKE DETECTOR

FREEZESTAT

MIXED AIR TEMPERATURE

SUPPLY AIR TEMPERATURE

HW COIL DISCHARGE AVERAGE

UNIT DISCHARGE STATIC PRESSURE

SA DOWN DUCT PRESSURE TRANSMITTER

AI4

AI5

DI1

DI3

DI2

AI2

AI1

AI3

AN

AL

OG

LOCAL DDC CONTROLLER

AHU

OA AIRFLOW MEASURE MOUNT STATIONAI6

A04 OUTSIDE AIR DAMPER CONTROL

AO1

AO4

DM

DM

AMSAI6

AI1

TS FSDI3

AO2 TS

AI3

AO3 AI2

VFD TS SPS

AI4 AI5

SPS

DI1

DPS

NO

LOCATE AT 2/3 DOWN

DUCT FROM AHU

AI7

CONDENSATE HI-LEVELDI4

DI4

LS

RA TEMPERATUREAI8

AI8 TS

AI7 HS

PROVIDE 3-WAY CONTROL VALVE.

PROVIDE 3-WAY CONTROL VALVE

SEE VFD CONTROL DIAGRAM

AIR

RETURN

DI2

SD

RA HUMIDITY

RETURN AIR DAMPER CONTROL

MULTIZONE VAV AHU CONTROL DIAGRAM (DDC)

SCALE: NO SCALE M-701A

AI9

CO2

CO2 SENSORAI9

REPEAT POINT FOR

EACH SENSOR

MOTOR STARTER

FREEZE STAT

AIR FLOW MEASURING STATION

AIR TEMPERATURE SENSOR

DIGITAL INPUT

DIGITAL OUTPUT

ANALOG INPUT POINT

DAMPER MOTOR ACTUATOR

DIFFERENTIAL PRESSURE SWITCH (DIGITAL) OR SENSOR (ANALOG)

ANALOG OUTPUT POINT

HUMIDITY SENSOR

SMOKE DETECTOR

STATIC PRESSURE SENSOR

VARIABLE FREQUENCY DRIVE

TEMPERATURE SENSOR

DPS

SP

VFD

TS

FS

SD

H

AO1

DI1

DO1

DM

AMS

ATS

AI1

CURRENT SENSING RELAY

PRIMARY HOT WATER PUMP DESIGNATION

EXHAUST AIR

EXHAUST FAN

EXHAUST FAN DESIGNATION

RETURN AIR

PUMP DESIGNATION

SECONDARY HOT WATER PUMP DESIGNATION

TYPICAL

SUPPLY AIR

UNIT HEATER DESIGNATION

SA

SHWP-1

(TYP.)

UH-1

EF-1

P-1

RA

CSR

EA

EF

RP-1

CHILLED WATER RETURNCWR

CHILLED WATER SUPPLYCWS

HOT WATER RETURNHWR

HOT WATER SUPPLYHWS

AIR HANDLING UNIT DESIGNATION

CHILLER DESIGNATIONAC-1

BOILER DESIGNATIONB-1

NORMALLY CLOSEDN.C.

NORMALLY OPENN.O.

MOTOR ACTUATORM

FLOW METERFM

CURRENT SENSING RELAYCSR

LIMIT SWITCHLS

AHU-1

CONTROLS LEGEND

CHILLED WATER PUMP DESIGNATIONCWP-1

HEATER MANUFACTURER'S

THERMOSTAT

UNIT SHALL BE CONTROLLED BY A WALL MOUNTED THERMOSTAT.

UPON A FALL IN SPACE TEMPERATURE BELOW 65°F, THE UNIT

SHALL BE ENERGIZED. UPON A RISE IN SPACE TEMPERATURE

ABOVE 68°F, THE OPPOSITE SHALL OCCUR.

SEQUENCE OF OPERATION

LINE VOLTAGE

T

FAN MOTOR

UNIT HEATER CONTROL DIAGRAM (NON-DDC)

SCALE: NO SCALE M-701F

AI1

DPS

INTERIOR EXTERIOROPPOSED

DAMPER

BLADE

NC DM

AO1

AN

AL

OG

RELIEF DAMPER CONTROLAO1

OUTPUTS

RELIEF PRESSURE SETPOINT

AN

AL

OG

AI1

LOCAL DDC CONTROLLER

INPUTS

L-9

RELIEF DAMPER CONTROL DIAGRAM (DDC)

SCALE: NO SCALE M-701D

MOTORIZED DAMPER SHALL BE CONTROLLED TO MAINTAIN A

DIFFERENTIAL PRESSURE SETPOINT BETWEEN THE BUILDING

INTERIOR AND EXTERIOR. DAMPER SHALL OPEN UPON A

DIFFERENTIAL PRESSURE OF 0.001 IN W.G. (ADJ.)

SEQUENCE OF OPERATION

PO Box 541, New Bern, NC 28563

252.636.8778 (PHONE)

252.636.8992 (FAX)

WALKER

GROUP

i n c o r p o r a t e d the

ARCHITECTURE

DISCLOSURE OF INFORMATION

CONTRACTOR SHALL COMPLY AS FOLLOWS:

(A) THE CONTRACTOR SHALL NOT RELEASE TO ANYONE OUTSIDE THE CONTRACTOR'S ORGANIZATION ANY UNCLASSIFIED INFORMATION, REGARDLESS OF MEDIUM (E.G., FILM, TAPE, DOCUMENT), PERTAINING TO ANY PART OF THIS CONTRACT OR ANY PROGRAM RELATED TO THIS CONTRACT, UNLESS-

(1) THE CONTRACTING OFFICER HAS GIVEN PRIOR WRITTEN APPROVAL; OR

(2) THE INFORMATION IS OTHERWISE IN THE PUBLIC DOMAIN BEFORE THE DATE OF RELEASE

(B) REQUESTS FOR APPROVAL SHALL IDENTIFY THE SPECIFIC INFORMATION TO BE RELEASED, THE MEDIUM TO BE USED, AND THE PURPOSE FOR THE RELEASE. THE CONTRACTOR SHALL

SUBMIT ITS REQUEST TO THE CONTRACTING OFFICER AT LEAST 45 DAYS BEFORE THE PROPOSED DATE FOR RELEASE.

(C) THE CONTRACTOR AGREES TO INCLUDE A SIMILAR REQUIREMENT IN EACH SUBCONTRACT UNDER HIS CONTRACT. SUBCONTRACTORS SHALL SUBMIT REQUESTS FOR AUTHORIZATION

TO RELEASE THROUGH THE PRIME CONTRACTOR TO THE CONTRACTING OFFICER.

CHILLED WATER SYSTEM :

GENERAL: THE FACILITY SHALL BE SUPPLIED WITH CHILLED WATER FROM AIR-COOLED CHILLER, AC-1. THE DESIGN CHILLED WATER SUPPLY TEMPERATURE IS 42°F.

COOLING: A CALL FOR COOLING IS DETERMINED BY ANY COOLING COIL VALVE BEING 30 PERCENT OPEN FOR A PERIOD OF MORE THAN 3 MINUTES. UPON A CALL FOR COOLING, THE CHILLER AND INTEGRAL PUMPING PACKAGE SHALL BE ENERGIZED AND RUN FOR A MINIMUM OF 30 MINUTES. THE CHILLER MANUFACTURER'S CONTROL PANEL SHALL MAINTAIN CHILLED WATER SETPOINT (42°F). AN ANTI-CYCLE TIMER SHALL PREVENT THE CHILLER FROM BEING STARTED FOR A PERIOD OF 15 MINUTES AFTER IT SHUTS DOWN DUE TO LOW BUILDING COOLING DEMAND. THE CHILLER MANUFACTURER'S MINIMUM ON AND OFF TIMES MUST BE OBSERVED. THE ABOVE SEQUENCE SHALL BE ACCOMPLISHED THROUGH THE BUILDING DDC SYSTEM AND CHILLER MANUFACTURER'S CONTROL PANEL. ANY OTHER ALARMS OR POINT INFORMATION AS IT RESIDES IN THE CHILLER

CONTROL PANEL, SHALL BE AVAILABLE THROUGH THE BUILDING DDC SYSTEM.

CHILLER SHALL UTILIZE AN INTEGRAL PUMPING PACKAGE. PUMPS SHALL BE EQUIPPED WITH VARIABLE FREQUENCY DRIVES BUT SHALL OPERATE AT CONSTANT SPEED. PUMPS SHALL OPERATE IN A LEAD/STANDBY CONFIGURATION, AND THE LEAD PUMP DESIGNATION SHALL ALTERNATE ON A WEEKLY BASIS. IN THE EVENT THE PRIMARY PUMP FAILS TO START DURING OPERATION, IF THE LEAD PUMP PROOF SWITCH DOES NOT DETECT FLOW WITHIN 30 SECONDS FROM START SIGNAL, THE DDC CONTROLLER SHALL DE-ENERGIZE THE FAILED PUMP, START THE STANDBY PUMP, AND TRANSMIT A PUMP FAILURE ALARM. A PROGRAMMED ANTI-RECYCLE TIMER SHALL PREVENT PUMP SHORT CYCLING. THE DDC CONTROLLER SHALL AUTOMATICALLY ATTEMPT A RESTART OF THE CIRCULATING PUMPS ON A PERIODIC BASIS TO ACCOMMODATE SERVICE SHUTDOWNS AND EXTENDED

POWER OUTAGES.

SEQUENCE OF OPERATION

ALARMS: ALARM IF CWS TEMPERATURE RISES ABOVE 47°F.

DDC/EMCS SIGNAL/FUNCTION:

CWS TEMPERATURE - STATUS, ALARM

CWR TEMPERATURE - STATUS

CWR TEMPERATURE

INTEGRAL CHILLER WATER PUMP CWP-1 - STATUS, ALARM

INTEGRAL CHILLER WATER PUMP CWP-2 - STATUS, ALARM

DIFFERENTIAL PRESSURE SENSOR - STATUS

CHILLED WATER FLOWMETER - COOLING LOAD (TONS), STATUS

CWS

CWR

CWS

CWR CWR

TO BUILDING

CWP-1

CWP-2

DPS

DI1

DPS

DI2

FMAI3

TS AI2

TS

AI1

VFD

VFD

AIR-COOLED CHILLER AC-1

FS DI3

REPRESENTS COMPONENTS

WHICH ARE INTEGRAL TO

CHILLER PACKAGE

DI4

DDCDO1

AO1

AI4

CONTROL

PANEL

CW

R

3"

PRESSURE GAUGE

(0-100 PSIG TYP.)

COMPOUND

PRIOR TO TAB WORK (TYP.)

REMOVE START-UP STRAINER

FLEX CONNECTION

(TYP. BOTH SIDES)

CWP-1

CWP-2

1/4"

1/4"

3"

3" 2-1/2"

CW

S (4 2° F)

CWR (57°F)

3"

3"

1"

TANGENTIAL AIR

SEPARATOR, AS-1

HIGH CAPACITY

AIR VENT

DIAPHRAGM EXPANSION TANK,

PRECHARGE TO 15 PSIG

3/4"

ET-1

3/4" DRAIN WITH

THREADED HOSE BIBB

PRESSURE GAUGE

(O-100 PSIG)

VENTURI BALANCE

VALVE, 105 GPM

PROVIDE 8 WATT/SF SELF

REGULATING HEAT TAPE ON

EXTERIOR PIPING

WELLS FOR PRESSURE /

TEMPERATURE TAP

CONNECTIONS (TYP FOR 4)

AC-1

INTEGRAL TO AIR-COOLED

CHILLER AC-1 CW

S

STRAINER W/

BLOWDOWN VALVE

UNION

CHECK VALVE

TEST WELL

FLOW SWITCH

1" DRAIN LINE AND BALL VALVE

AT LOW POINT IN PIPING (TYP.)

VALVE-SET AT 20 PSIG

PRESSURE REGULATION

SET AT 50 PSIG

RELIEF VALVE

3/4" BYPASS

GLOBE VALVE TO FD

1" MAKE-UP WATER, REFER TO

PLUMBING DRAWINGS FOR

BACKFLOW PREVENTER AND

CONTINUATION

1" TO CHILLER

THERMOMETER

1" COLD WATER

MAKE-UP

CW

R

CW

S

SHOT FEEDER IN

MECH 110

CHILLED WATER SYSTEM FLOW DIAGRAM

SCALE: NO SCALE M-702A

CHILLED WATER SYSTEM CONTROL DIAGRAM (DDC)

SCALE: NO SCALE M-702B

DSS-1 CONDENSING UNIT

DSS-1 EVAPORATOR

COOLING: UNIT SHALL BE CONTROLLED BY THE MANUFACTURERS INTEGRAL THERMOSTAT.

WHEN THE SPACE TEMPERATURE RISES ABOVE THE COOLING SETPOINT (75°F), THE

THERMOSTAT SHALL ENERGIZE THE DSS UNITS AND ENERGIZE THE INDOOR UNIT SUPPLY

FAN. WHEN THE SPACE TEMPERATURE DROPS BELOW THE THERMOSTAT SETPOINT, THE

OPPOSITE SHALL OCCUR.

HEATING: UPON A FALL IN SPACE TEMPERATURE BELOW HEATING SETPOINT (68°F), THE

THERMOSTAT SHALL ENERGIZE THE INDOOR UNIT SUPPLY FAN AND OUTDOOR

COMPRESSORS. UPON A FURTHER DROP IN TEMPERATURE, THE UNITS ELECTRIC HEATING

COIL SHALL BE ENERGIZED. UPON A RISE IN SPACE TEMPERATURE ABOVE HEATING

SETPOINT, THE OPPOSITE SHALL OCCUR.

SEQUENCE OF OPERATION

MANUFACTURER'S INTEGRAL

THERMOSTAT

RS/RLT

3" TEMPORARY

CHILLER

CONNECTION

EF-1,-2

EXHAUST FANS SHALL OPERATE BY WALL SWITCH. ALL WIRING SHALL BE CONCEALED IN CONDUIT IN ACCORDANCE WITH

DIVISION 26 SPECIFICATIONS.

EF-3

EXHAUST FAN SHALL OPERATE CONTINUOUSLY DURING OCCUPIED HOURS. COORDINATE OCCUPIED HOURS WITH THE

GOVERNMENT.

DI

GI

TA

L

FAN START/STOPDO1

OUTPUTS

FAN STATUS

DI

GI

TA

L

DI1

LOCAL DDC CONTROLLER

INPUTS

EF-1, -2, -3

SEQUENCE OF OPERATION - EF-1, EF-2, EF-3

DO1

EF

CSR DI1

System 600

POWERS POWERS

System 600

HEATING PLANT

CONTROLLER

POWERS

System 600

COOLING PLANT

CONTROLLER

POWERS

System 600

FIELD PANEL

AHU-1MECHANICAL ROOM

FIRST FLOOR

FIELD PLUG-IN

PORTABLE

OPERATOR'S

WORKSTATION

CWP-2

AC-1

· ENABLE/DISABLE

· SPEED

BOILER

RP-2

BACNET MSTP BUS (TYP)

· ON/OFF

· STATUS

BOILER

RP-1

POWERS

System 600

PUMP

CONTROLLER

SUPERVISORY BUILDING

CONTROLLER

SHWP-2

SHWP-1

VAV

ASC

CWP-1

· ON/OFF

· STATUS

POWERS

System 600

FIELD PANEL

AHU-2

SEQUENCE OF OPERATION - EF-4, EF-5

EXHAUST FAN SHALL BE CONTROLLED BY THERMOSTAT ACTIVATION.

WHEN THE SPACE TEMPERATURE RISES ABOVE 85°F, THE ASSOCIATED

EXHAUST FAN SHALL BE ENERGIZED. WHEN THE SPACE TEMPERATURE IS

BELOW 85°F, THE ASSOCIATED EXHAUST FAN SHALL BE DE-ENERGIZED.

LINE

VOLTAGE

THERMOSTAT FAN

MOTORT

EXHAUST FAN CONTROL DIAGRAM (DDC)

SCALE: NO SCALE M-702C

DSS-1 CONTROL DIAGRAM (NON-DDC)

SCALE: NO SCALE M-702D

EXHAUST FAN WITH THERMOSTAT (NON-DDC)

SCALE: NO SCALE M-702E

DO2

DO3

CHILLED WATER SYSTEM

LOCAL DDC CONTROLLER

AN

AL

OG

INPUTS

CWS TEMPERATURE

DI

GI

TA

L

PUMP CWP-1 STATUS (ON/OFF)

CWR TEMPERATURE

AN

AL

OG

OUTPUTS

AI1

AI2

AI3

DI1

AO1

PUMP CWP-2 STATUS (ON/OFF)DI2

CHILLED WATER FLOWMETER

AC-1 FLOW SWITCHDI3

AC-1 STATUS (ON/OFF)DI4

DI

GI

TA

L AC-1 ENABLE/DISABLEDO1

CWS SETPOINT

AC-1 PERCENTAGE OF LOADAI4

CWP-1 ENABLE/DISABLEDO2

CWP-2 ENABLE/DISABLEDO3

PO Box 541, New Bern, NC 28563

252.636.8778 (PHONE)

252.636.8992 (FAX)

WALKER

GROUP

i n c o r p o r a t e d the

ARCHITECTURE

DISCLOSURE OF INFORMATION

CONTRACTOR SHALL COMPLY AS FOLLOWS:

(A) THE CONTRACTOR SHALL NOT RELEASE TO ANYONE OUTSIDE THE CONTRACTOR'S ORGANIZATION ANY UNCLASSIFIED INFORMATION, REGARDLESS OF MEDIUM (E.G., FILM, TAPE, DOCUMENT), PERTAINING TO ANY PART OF THIS CONTRACT OR ANY PROGRAM RELATED TO THIS CONTRACT, UNLESS-

(1) THE CONTRACTING OFFICER HAS GIVEN PRIOR WRITTEN APPROVAL; OR

(2) THE INFORMATION IS OTHERWISE IN THE PUBLIC DOMAIN BEFORE THE DATE OF RELEASE

(B) REQUESTS FOR APPROVAL SHALL IDENTIFY THE SPECIFIC INFORMATION TO BE RELEASED, THE MEDIUM TO BE USED, AND THE PURPOSE FOR THE RELEASE. THE CONTRACTOR SHALL

SUBMIT ITS REQUEST TO THE CONTRACTING OFFICER AT LEAST 45 DAYS BEFORE THE PROPOSED DATE FOR RELEASE.

(C) THE CONTRACTOR AGREES TO INCLUDE A SIMILAR REQUIREMENT IN EACH SUBCONTRACT UNDER HIS CONTRACT. SUBCONTRACTORS SHALL SUBMIT REQUESTS FOR AUTHORIZATION

TO RELEASE THROUGH THE PRIME CONTRACTOR TO THE CONTRACTING OFFICER.

02/24/2020

1" COLD WATER, SEE PLUMBING

M-703 FOR CONTROLS SCHEMATIC (TYP.)

TEMPERATURE SENSOR AND WELL. SEE SHEET

ROOM WALL (TYP. FOR 2)

VALVE AT EQUIPMENT

TO BUILDING HW SYSTEM

SEE SHEET M-201 FOR CONTINUATION

ET-1

SHWR

SHWS

COALESCING AIR

SEPARATOR

FLOOR DRAIN

1" TO

NEAREST

3/4"

PRESSURE REGULATION

RELIEF VALVE-

AIR VENT

SET AT 50 PSIG

VALVE-SET AT 20 PSIG

1" BYPASS

SHWS

3/4"

SHWP-2

3/4"

(0-100 PSIG TYP.)

PRESSURE GAUGE

SHWP-1

2"

HIGH CAPACITY

2" 2"

2"

2"

LINE SIZE

REMOVE START-UP STRAINER

PRIOR TO TAB WORK (TYP.)

1/4"

1/4"

SHEETS FOR BACKFLOW PREVENTER,

AND CONTINUATION

4" CONCRETE

EQUIPMENT PAD

PH

W

S

PH

W

R

2"

RP-1

INLINE PUMP, SEE

DETAIL FOR VALVE

WORK REQUIRED

PH

W

R

PH

W

S

2"

2"

30 PSIG RELIEF VALVE

BY MANUFACTURER

(TYP)

FULL SIZE OF OUTLET,

PIPE TO FLOOR DRAIN

(TYP)

B-2

3/4" DRAIN AND BALL

VALVE (TYP)

B-1

SHWS

SHOT FEEDER

5 GALLON

HOT WATER FLOW DIAGRAM

SCALE: NO SCALE M-703B

1" 3/4"

CONDENSATE

NEUTRALIZATION KIT

BRIDGE

RP-2

HEATING HOT WATER SYSTEM

GENERAL: THE HOT WATER SYSTEM SHALL BE CONTROLLED BY THE BOILER MANAGEMENT SYSTEM. CONTROLLER SHALL MONITOR BOILERS' STATUS AND HOT WATER SUPPLY TEMPERATURES. BOILERS SHALL OPERATE IN LEAD/LAG CONFIGURATION AND THE PUMPS SHALL OPERATE IN A LEAD/STAND-BY CONFIGURATION ALTERNATING LEAD BOILERS/PUMPS STATUS WEEKLY BY SELECTING BOILER/PUMP WITH THE LEAST TOTAL ACCUMULATED RUN TIME (HOURS). SECONDARY PUMPS ARE SIZED FOR CONNECTED LOAD AND ARE FULLY REDUNDANT.

IF THERE IS AN ALARM IN ANY BOILER OR IF A FAULT OCCURS IN THE BOILER MANAGEMENT SYSTEM, (AS DETERMINED FROM THE BINARY FAULT OUTPUT OF THE CONTROLLER), THE ASSOCIATED BOILER WILL BE COMMANDED OFF, AND AN ALARM SHALL BE GENERATED.

ON DETECTION OF A HIGH DISCHARGE BOILER TEMPERATURE, AS DETERMINED BY THE BOILER HIGH LIMIT ALARM, THE BOILER SHALL BE

DISABLED, AND AN ALARM SHALL BE GENERATED.

BOILER (B-1, B-2 ) AND PRIMARY HOT WATER PUMP CONTROL (RP-1, RP-2 ): ON A CALL FOR HEATING AT ANY AHU OR VAV TERMINAL FOR MORE THAN THREE (3) MINUTES, THE DDC CONTROLLER SHALL SEND A SIGNAL TO THE BOILER MANAGEMENT SYSTEM THAT HEATING IS REQUIRED.

WHEN THE DDC CONTROL SYSTEM RECEIVES A CALL FOR HEATING, THE BOILER MANAGEMENT SYSTEM SHALL BE ENGAGED AND SHALL ENABLE THE LEAD BOILER. THE LEAD BOILER AND ASSOCIATED PRIMARY HOT WATER PUMP SHALL BE ENERGIZED. UPON A DROP IN MAIN HW LOOP TEMPERATURE BELOW SETPOINT, THE LAG BOILER AND ASSOCIATED PRIMARY HOT WATER PUMP SHALL BE ENERGIZED.

SECONDARY HOT WATER PUMPS, SHWP-1 AND SHWP-2: THE CONTROL STRATEGY INCLUDES OPERATING VARIABLE SPEED PUMPS IN ORDER TO MINIMIZE PUMPING POWER REQUIREMENTS. THE SPEED DRIVE OF THE VARIABLE SPEED PUMP(S) IS CONTROLLED TO MAINTAIN A DIFFERENTIAL PRESSURE SETPOINT. THE DDC CONTROLLER SHALL BE DESIGNED TO START AND STOP THE PUMPS AND MODULATE THEIR SPEEDS AS REQUIRED TO MEET THE SYSTEM DEMANDS. THE SYSTEM SHALL BE DESIGNED TO MAINTAIN A DIFFERENTIAL PRESSURE

SETPOINT AT A REMOTE LOCATION.

SECONDARY HOT WATER PUMPS SHALL BE CONTROLLED BY THE DDC SYSTEM. PUMPS SHALL BE ENERGIZED AND RUN ON A CALL FOR HEATING AT ANY AHU OR VAV TERMINAL FOR MORE THAN THREE (3) MINUTES. THE DDC CONTROLLER SHALL ALTERNATE PUMP LEAD STATUS WEEKLY BY SELECTING THE PUMP WITH THE LEAST TOTAL ACCUMULATED RUN TIME AS CALCULATED AND STORED AT THE DDC CONTROLLER. IF EITHER SELECTED LEAD PUMP'S PROOF SWITCH DOES NOT DETECT FLOW WITHIN 30 SECONDS FROM THE START SIGNAL, THE DDC CONTROLLER SHALL DE-ENERGIZE THE FAILED PUMP, START THE STANDBY PUMP, AND TRANSMIT A PUMP FAILURE ALARM. A PROGRAMMED ANTI-RECYCLE TIMER SHALL PREVENT PUMP SHORT CYCLING. THE DDC CONTROLLER SHALL AUTOMATICALLY ATTEMPT A RESTART OF THE CIRCULATING PUMPS ON A PERIODIC BASIS TO ACCOMMODATE SERVICE SHUTDOWNS AND EXTENDED POWER OUTAGES.

HOT WATER RESET CONTROL: THE SECONDARY HOT WATER SUPPLY TEMPERATURE SETPOINT SHALL BE DETERMINED BY THE OUTSIDE AIR TEMPERATURE. THE HOT WATER SUPPLY TEMPERATURE SETPOINT SHALL BE RESET PROPORTIONALLY AS FOLLOWS: AS AIR TEMPERATURE RISES

FROM 20°F TO 60°F, RESET SECONDARY HWS FROM 120°F DOWN TO 100°F.

BOILER EMERGENCY SHUT-OFF CONTROL: PROVIDE TWO POSITION "ON-OFF" SWITCHES LABELED "BOILER EMERGENCY SHUT-OFF" LOCATED AS INDICATED WHICH SHALL BE HARDWIRE INTERLOCKED WITH THE BOILERS' CONTROL PANEL. WHEN INDEXED TO THE "ON" POSITION, THE BOILERS SHALL OPERATE UNDER NORMAL CONTROL OF THE DDC CONTROL SYSTEM. WHEN INDEXED TO THE "OFF" POSITION, THE BOILERS SHALL BE DISABLED, AND THE GAS BURNERS TO EACH BOILER SHALL BE SHUTDOWN. MANUAL RESET SHALL BE REQUIRED.

ALARMS: IF THERE IS AN ALARM IN ANY BOILER OR IF A FAULT OCCURS IN THE BOILER MANAGEMENT SYSTEM, (AS DETERMINED FROM THE BINARY FAULT OUTPUT OF THE CONTROLLER), THE ASSOCIATED BOILER ISOLATION VALVE SHALL CLOSE, AND AN ALARM SHALL BE GENERATED. ON DETECTION OF A HIGH DISCHARGE BOILER TEMPERATURE, AS DETERMINED BY THE BOILER HIGH LIMIT ALARM, THE BOILER MANAGEMENT SYSTEM SHALL BE DISABLED AND AN ALARM SHALL BE GENERATED. ALARM FOR LEAVING WATER TEMPERATURE EXCEEDING 140°F OR FALLING 10°F BELOW THE SCHEDULED HWS TEMPERATURE SETPOINT. ALARM IF ANY BOILER OR PUMP FAILS TO START OR FAILS

DURING OPERATION.

DDC/EMCS SIGNAL-FUNCTION:

RETURN WATER TEMPERATURE - STATUS

LEAVING WATER TEMPERATURE - STATUS

PUMP RP-1 - START/STOP, STATUS, ALARM

PUMP RP-2 - START/STOP, STATUS, ALARM

PUMP SHWP-1 MOTOR - START/STOP, STATUS, RUNTIME, ALARM

PUMP SHWP-2 MOTOR - START/STOP, STATUS, RUNTIME, ALARM

DIFFERENTIAL PRESSURE SENSOR - PUMP SHWP-1 AND SHWP-2 VFD CONTROL

BOILER MANAGEMENT SYSTEM - ALARM, STATUS, START/STOP

EMERGENCY GAS SHUT OFF SWITCH - BOILER B - 1, 2, START/STOP, ALARM

BOILER CONDENSATE PUMP - ALARM

PHWS

BOILER

CONTROL

PANEL

PHWS

BOILER

B-1

AN

AL

OG

HWS TEMPERATURE

DIFFERENTIAL PRESSURE

DI

GI

TA

L

AN

AL

OG

OUTPUTS

DI

GI

TA

L

SHWP-1 SPEED CONTROL

SHWP-2 SPEED CONTROL

SHWP-1 VFD, ENABLE/DISABLE

BOILER, ENABLE/DISABLE

SHWP-2 VFD, ENABLE/DISABLE

BOILER ALARM

SHWP-2

SHWR HWR TEMPERATURE

INPUTS

LOCAL DDC CONTROLLER

HEATING HOT WATER SYSTEM

RP-1 - STATUS

RP-2 - STATUS

SHWP-1 - STATUS

SHWP-2 - STATUS

EMERGENCY SWITCH

BOILER MANAGEMENT SYSTEM

BOILER LOOP SUPPLY TEMPERATURE

B-1 SUPPLY TEMPERATURE

RP-1, ENABLE/DISABLE

BRIDGE

BOILER

B-2

B-2 SUPPLY TEMPERATURE

EMERGENCY GAS

SHUTOFF SWITCH

SHWP-1

HW FLOWRATE

SHWP-1 VFD SPEED (Hz)

SHWP-2 VFD SPEED (Hz)

RP-2, ENABLE/DISABLE

GAS, ON/OFF

AI1

AI2

AI3

AI4

AI5

AI6

AI8

AI9

AI10

DI1

DI2

DI3

DI5

DI6

AO1

AO2

DO1

DO2

DO3

DO4

DO5

DO1DI1

AI5

AI4

DI6

AI3 DPS

VFD

VFD

DPS

DPS

AI2 AI8

DI4

DI5

AI1

AO2DO3

DO2 AO1 SHWSSHWS

PH

W

R

AI9

AI10

AI7

DI4

DO6

TS

TS

TS FM

TS

ES

SEQUENCE OF OPERATION

SEE SHEET M-201 FOR LOCATION

G

D06

M

DPS

DI2

DO4

RP-1

DPS

DI3

DO5

AI6TS

BOILER LOOP RETURN TEMPERATUREAI7 TS

RP-2

HEATING HOT WATER SYSTEM CONTROL DIAGRAM

SCALE: NO SCALE M-703A