KCCOM051.pdf

FD

SP

KANSAS CITY, MO.

U.S.A.

ARCHITECTS, P.A.

GOULD EVANS

SERVICES CONTRACTOR

PROGRAM MANAGEMENT

PROJECT NO.

WFO / NEXRAD PROGRAM

DESCRIPTION OF REVISIONFDI

APPROVED APPROVED

ACTR/COTR

BY

CHECKED

BY

PREPAREDDATENO.

SPECIAL ENGINEERING PROGRAM OFFICE (SEPO)

WEATHER FORECAST OFFICE

REV.CLIN.DWG. NO.SIZE

ACOTR./COTR.

ENGR/PROJ. MGR.

SUP'V. ENGR.

CHECKED

DRAWN

S P

EC

IA

L

EN

GIN

EERING PROGRAM

OFF

ICE

N A T

IO

N

AL

OC

EANIC

ND TMOSPH

ER

ICA

A

AD

M

IN

IS

T R A T

IO

N

HVAC

TEMPERATURE CONTROLS

BIRMINGHAM, ALABAMA

R L ANDREWS

L

L

IN CONDUITS (SEE ELECTRICAL DWG E06).

ALL 24 VOLT CONTROL WIRING UNDER THE FLOOR SHALL BE INSTALLED

L

EQUIPMENT SEQUENCE OF CONTROLS

SPACE TEMPERATURE CONTROLSHEATER

ELECTRIC DUCT

MS SD

MS SD

AIR FAN

SUPPLY

FILTER

VALVE

SOLENOID

STEAM

T

H

TEMPERATURE CONTROL LEGEND

MOTOR STARTER

INPUT OR OUTPUT

TEMPERATURE CONTROL PANEL

ROOM HUMIDITY SENSOR

ROOM TEMPERATURE SENSOR

T

SD

DP

MS

HL

L

CONTROL WIRING

H

D

FS

DUCT TEMPERATURE SENSOR

AIRFLOW SWITCH

DIFFERENTIAL PRESSURE SWITCH

DUCT SMOKE DETECTOR

HIGH LIMIT HUMIDISTAT

DUCT HUMIDITY SENSOR

MOTOR OPERATED DAMPER

5.

4.

3.

2.

1.

THE ALARM AND INDICATION LIGHTS PANEL SHALL BE PROVIDED WITH

SUPPLY

AIRAIR

OUTSIDE

AIR

RETURN

DP

B

(109)

ROOM

OPERATIONS

H 8

THE CONTRACTOR SHALL BE RESPONSIBLE FOR DETAILING THE HVAC

CONTROL SYSTEM, POWER WIRING, LOW VOLTAGE CONTROL WIRING, AND

CONNECTIONS NECESSARY TO PROVIDE A COMPLETE AND OPERABLE

TEMPERATURE AND HUMIDITY CONTROL SYSTEM BASED ON THE SCHEMATIC

ALL 24 VOLT CONTROL WIRING SHALL BE FURNISHED AND INSTALLED BY

TEMPERATURE CONTROL CONTRACTOR AND SHALL BE SHIELDED CLASS 2

PLENUM RATED CABLE.

AND SEQUENCE OF OPERATION AS SHOWN ON THIS DRAWING.

SD

TEMPERATURE CONTROL NOTES

DTH

2 1 A 5

T

D A

3T

H 4

DP

C

T

(HU-1)

HUMIDIFIER

FS HLSUPPLY

AIR FAN

COOLING

COIL

F

E

SPACE HUMIDITY

FILTER DIFF PRESSURE

FAN DIFF PRESSURE

R/A HUMIDITY

M/A TEMPERATURE

O/A HUMIDITY

R/A TEMPERATURE

S/A TEMPERATURE

O/A TEMPERATURE

HUMIDIFIER

AHU START/STOP

COOLING

SUPPLY FAN STATUS

DIRTY FILTERS

O/A, R/A DAMPERS

F

E

D

C

B

A

INPUTS OUTPUTS

UNIT

CONDENSING

D

E

COIL

COOLING

T

C

DP

AD

T

3A1

T D

SD

FILTER

B

DP

RETURN

AIR

OUTSIDE

AIR AIR

SUPPLY

L L

L

D

CONDENSING

UNIT

AHU-1, AHU-2 CONTROLS

AHU-3 CONTROLS

OUTPUTSINPUTS

AHU-3 CONTROLS

A

B

C

D

E

O/A, R/A DAMPERS

DIRTY FILTERS

SUPPLY FAN STATUS

COOLING

AHU START/STOP

O/A TEMPERATURE

M/A TEMPERATURE

S/A TEMPERATURE

FAN DIFF PRESSURE

FILTER DIFF PRESSURE

AHU-1, AHU-2 CONTROLS

(EDH-10)

(EDH-1)

ELECTRIC DUCT HEATERSPACE TEMPERATURE

ELECTRIC DUCT HEATERJ

A

INPUTS OUTPUTS

T 1 A

SUPPLY

AIR AIR

SUPPLY

ALL 120 VOLT POWER WIRING TO CONTROL PANELS AND MOTOR OPERATED

DAMPERS SHALL BE FURNISHED AND INSTALLED BY THE ELECTRICAL

CONTRACTOR (SEE ELECTRICAL DWG E05).

10 COMMERCIAL/GENERATOR

AUTOMATIC

SWITCH

(ATS)

POWER STATUS

TRANSFER

THE FOLLOWING IDENTIFICATION AND INDICATOR LIGHTS (FOR EACH AHU):

SUPPLY FAN OPERATING

SUPPLY FAN FAILURE

CONDENSING UNIT OPERATING

CONDENSING UNIT FAILURE

FILTER CHANGE REQUIRED

GREEN

RED

GREEN

RED

RED

6.

INDICATOR LIGHT (LOCATED IN

ALARM/INDICATION LIGHTS PANEL)

AIR HANDLING UNIT (AHU-1,2)

AIR HANDLING UNIT (AHU-3)

ELECTRIC DUCT HEATERS (EDH)

A SPACE TEMPERATURE SENSOR SHALL MODULATE THE ELECTRIC DUCT HEATER WHEN

HEATING IS REQUIRED.

PACKAGED AIR CONDITIONING UNITS (PAC-1,2)

THE PAC UNITS (PAC-1,2), CONDENSING UNITS (C-1,2) AND THE REMOTE CONTROL

BOX (RCB) ARE GOVERNMENT FURNISHED EQUIPMENT. BOTH PAC UNITS HAVE INTERNAL

CONTROLS AND ARE CONNECTED TO THE RCB. THE RCB CONTROLS THE LEAD/LAG

SEQUENCING OF THE UNITS TO MAINTAIN EQUAL RUN TIME. A HIGH TEMPERATURE

EXHAUST FAN (EF-1)

THE EXHAUST FAN SHALL RUN CONTINUOUSLY.

TRANSFER FAN (TF-2)

THE TRANSFER FAN SHALL RUN CONTINUOUSLY.

HUMIDIFIER (HU-1)

ELECTRIC CONVECTION HEATERS (EH-1, 2)

THE ELECTRIC CONVECTION HEATERS HAVE SELF CONTAINED CONTROLS. THE THERMOSTATS

SHALL BE SET TO MAINTAIN A SPACE TEMPERATURE OF 65°F.

THERMOSTAT IS ALSO CONNECTED TO THE RCB, TO ENERGIZE THE LAG PAC UNIT ON

A HIGH SPACE TEMPERATURE SIGNAL. BOTH PAC UNITS WILL BE ABLE TO RUN IN

THE NORMAL OPERATION MODE. UPON A SIGNAL FROM THE AUTOMATIC TRANSFER

SWITCH (ATS), THE RCB WILL ALLOW ONLY ONE PAC UNIT TO RUN IN THE

EMERGENCY OPERATION MODE.

SPACE TEMPERATURE

THE HUMIDIFIER SHALL NOT BE ALLOWED TO OPERATE UNLESS THE AIR HANDLING UNIT

SUPPLY AIR FAN IS IN OPERATION. AN AIR FLOW SWITCH SHALL DE-ENERGIZE THE

HUMIDIFIER UPON LOSS OF AIRFLOW. THE STEAM SOLENOID VALVES SHALL BE

INTERLOCKED TO OPEN WHEN THE CORRESPONDING AIR HANDLING UNIT IS IN OPERATION.

THE SPACE HUMIDITY SENSOR SHALL MODULATE THE HUMIDIFIER. WHEN THE HUMIDIFIER

IS ENERGIZED, THE SUPPLY AIR TEMPERATURE SHALL BE RESET TO 65°F. WHEN THE

HUMIDIFIER IS DE-ENERGIZED, SUPPLY AIR TEMPERATURE SHALL BE SET BACK TO 55°F.

A SIGNAL FROM THE HIGH-LIMIT HUMIDITY SENSOR SHALL DE-ENERGIZE THE HUMIDIFIER.

AIR HANDLING UNIT 3 (AHU-3) SERVES THE ADMINISTRATION AREA AND OPERATES ON

(1) ONE STAGE COOLING;

(2) OUTSIDE AIR ECONOMIZER CYCLE IS CONTROLLED BY OUTSIDE AIR TEMPERATURE;

(3) NO HUMIDITY CONTROL.

AHU-3, ACU-3 AND ASSOCIATED ELECTRIC DUCT HEATERS SHALL NOT OPERATE ON

EMERGENCY POWER. UPON RESTORATION OF COMMERCIAL POWER, AHU-3, ACU-3 AND

ASSOCIATED ELECTRIC DUCT HEATERS SHALL RETURN TO NORMAL OPERATING MODE.

AN 8-HOUR SCHEDULE. PROGRAM NIGHT SETBACK. THE OPERATION OF AHU-3 IS

SIMILAR TO AIR HANDLING UNITS 1 & 2 WITH THE FOLLOWING EXCEPTIONS:

AIR HANDLING UNITS 1 AND 2 (AHU-1, 2) SERVE THE OPERATIONS AREA AND ARE

OPERATED ON A 24-HOUR SCHEDULE. ONLY ONE AIR HANDLING UNIT SHALL OPERATE,

AND THE NON-OPERATING UNIT SHALL SERVE AS A BACK-UP. THE BACK-UP UNIT SHALL

BE STARTED AUTOMATICALLY UPON FAILURE OF THE OTHER UNIT. AHU-1 AND 2 SHALL BE

PROGRAMMED TO ALTERNATE TO MAINTAIN EQUAL RUN TIME. THE SUPPLY AIR FAN SHALL

RUN CONTINUOUSLY. A SUPPLY AIR TEMPERATURE SENSOR SHALL MODULATE THE AIR

TEMPERATURE SENSOR WITH THE MAXIMUM COOLING DEMAND. AN OUTSIDE AIR ECONOMIZER

CYCLE SHALL BE PROVIDED WITH ENTHALPY CONTROL. A MIXED AIR TEMPERATURE SENSOR

SHALL MODULATE THE OUTSIDE AND RETURN AIR DAMPERS DURING THE ECONOMIZER CYCLE.

MINIMUM OUTSIDE AIR SHALL BE PROVIDED WHEN THE UNIT IS NOT IN ECONOMIZER CYCLE.

HUMIDITY SHALL BE CONTROLLED BY A SPACE HUMIDITY SENSOR. HEATING WILL BE

PROVIDED BY INDIVIDUAL ELECTRIC DUCT HEATERS (EDH). SMOKE DETECTORS, IN THE

SUPPLY AND RETURN AIR DUCTWORK, SHALL DE-ENERGIZE THE SUPPLY AIR FAN UPON

COOLED CONDENSING UNIT (ACU) TO MAINTAIN 55°F DISCHARGE AIR TEMPERATURE. THE

COMPRESSOR SHALL BE EQUIPPED WITH A CYLINDER UNLOADER FOR TWO STAGES OF

COOLING. THE SUPPLY AIR TEMPERATURE SHALL BE RESET TO SATISFY THE ROOM

STM

G L

L

L

L F

T 7

R/A TEMPERATURE7

6 CONDENSING UNIT

CONTROL SAFETIES

CONDENSING UNIT

SAFETIESF

CONTROL SAFETIES

CONDENSING UNIT11

G STATUS

CONDENSING UNIT

E

SENSING SMOKE. UPON LOSS OF COMMERCIAL POWER, THE AIR HANDLING UNIT SHALL BE

PROGRAMMED FOR A TIMED DELAY RESTART. ELECTRIC DUCT HEATER EDH-2 SHALL NOT

OPERATE ON EMERGENCY POWER.

(NC - NORMALLY CLOSED)

(NO - NORMALLY OPEN)

(NC)

(NO)

(NC)

(NO)

SET ROOM TEMPERATURE AT 72°F FOR ALL AREAS SERVED BY AHU-1 AND

AHU-2, AND 78°F FOR ALL AREAS SERVED BY AHU-3. SET ROOM HUMIDITY

AT 50% RELATIVE HUMIDITY.

SET ALTERNATING TIME OF AHU-1 & 2, AND PAC-1 & 2 FOR 84

HOUR INTERVALS.

7.

CO01

449404- 5 M05 CO 1

S MINO

D FULCHER

BLR/TLS

JAB

1 10/7/94 SJL D FULCHER BLR/TLS JAB REVISED PER AS-BUILT CONDITIONS

9:

S

JL

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1= 1' K

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Model