owd-23000102-m002.pdf

FEDERAL AVIATION ADMINISTRATION

DEPARTMENT OF TRANSPORTATION

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M002 NOT TO SCALE

DROP DOWN

STAIRS

IN CEILING

36"X12'H

GALV DUCT

TURNING

VANES (TYP)

36"X12"H

GALV DUCT

8" FLEX DUCT

(TYP OF 12)

MANUAL

VOLUME DAMPER

(TYP OF 12)

SUPPLY

AIR DROP

36"X12"H

GALV DUCT

DISTRIBUTION

BOX

DUCTWORK PLAN1

RETURN

AIR DUCT/GRILL

M002

ROOF PLAN

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RETURN

SUPPLY

ROOF

HATCH

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ROOF HATCH

M002

REUSE EXISTING SEISMIC CURB

DISTRIBUTION

BOX

STRIP DIFFUSERS

M001

ATCT PARTIAL ELEVATION

NOT TO SCALE

CONTROL

CAB LEVEL

8" FLEXIBLE

DUCT 8" FLEXIBLE

DUCT

DISTRIBUTION

BOX

HVAC UNIT

RETURN

AIR DUCT

(RA)

AIR SUPPLY

DROP (SA)

INSULATED

DUCTWORK

4' X 2' RETURN

AIR GRILLE

(TYP OF 12)

SEE NOTE 1

POWERED CONVENIENCE OUTLET

THROUGH THE BASE ELECTRICAL WITH

UNIT MOUNTED/ NON-FUSED DISCONNECT

SEE NOTE 1

ROOF

GRADE

CONNECTIONS

STAND AND DUCT

VIBRATION ISOLATION

HVAC CURB AND

PANELS

WITH REMOVABLE

DROPPED CEILING

M002

CONDENSATE DRAIN DETAIL

NOT TO SCALE

.75 INCH NPT

UNIT ENCLOSURE

CLEANOUT PLUG

1.5"

FEMALE CONNECTOR

TO THE BARE METAL ON THE HVAC UNIT

PROTECTION CONDUCTOR AND CONNECT

REUSE THE EXISTING LIGHTNING

SEE DETAIL 4

CONDENSATE DRAIN

CONSTRUCT A NEW COPPER

THERMOSTAT

EXISTING

REPLACE

TEMPORARY PANEL FOR TEMPORARY HVAC EQUIPMENT UPON PRIOR FAA APPROVAL.

SERVICE THROUGHOUT CONSTRUCTION PERIOD TO THE CAN SPACE WITHOUT THE INTERRUPTION TO AIR TRAFFIC SERVICES. INSTALLATION OF A

29, 31 (208 VOLTS, 3P, 100 AMPS). CONTRACTOR MUST SUBMIT PLAN FOR APPROVAL PRIOR TO CONSTRUCTION. PLAN MUST INCLUDE CONTINUOUS

TEMPORARY SOLUTION MUST MEET THE REQUIREMENTS OF THE SCHEDULE ON M001. POWER TO ONLY BE PROVIDED BY MDP, CIRCUIT BREAKERS 27, THROUGHOUT CONSTRUCTION PROVIDE TEMPORARY COOLING AND HEATING TO THE CAB SPACE AS REQUIRED WITH COORDINATION OF COR. 16.

IN 'CONDENSATE DRAIN DETAIL'. FOLLOW INSTALLATION INSTRUCTION FROM HVAC MANUFACTURER.

COULD RESULT IN CONDENSATE BACKUP DOE TO "AIR LOCK". IF UNIT STATIC IS HIGHER, TRAP MUST BE TALLER TO DRAIN APPROPRIATELY THAN

TO ASSURE PROPER CONDENSATE FLOW. DO NOT ALLOW THE HORIZONTAL RUN TO SAG CAUSING A POSSIBLE DOUBLE TRAP CONDITION WHICH

A CONDENSATE DRAIN LINE MUST BE CONNECTED TO THE P-TRAP. PITCH THE DRAIN AT LEAST 1/2 INCH FOR EVERY 10 FEET OF HORIZONTAL RUN 15.

THROUGHOUT CONSTRUCTION, PROTECT ANY OPENINGS MADE IN THE ROOF TO KEEP THE ROOF WATER TIGHT.14.

THERMOSTAT FROM HEAT LOAD CREATED BY DIRECT SUN LIGHT.

REPLACE EXISTING THERMOSTAT WITH A NEW THERMOSTAT IN SAME LOCATION. PLACE THERMOSTAT IN OPAQUE PLASTIC CASE TO PROTECT 13.

CAB. TESTING PRIOR AND AFTER CONSTRUCTION IS REQUIRED TO ENSURE NO INCREASE OF NOISE FLOOR.

ALL HARD DUCT WORK MUST HAVE 2" NOISE ISOLATING DUCT LINER. NOISE DAMPENING IS REQUIRED TO NOT INCREASE THE NOISE FLOOR OF THE 12.

ALL FLEX DUCT WORK MUST BE INSULATED, MATCH INSULATION TO EXISTING11.

BOX TO 200 CFM. UPON COMPLETION OF TAB, A REPORT MUST BE SUBMITTED TO THE COR.

INTAKE WILL BE SET TO 100 CFM. EACH OF THE MANUAL VOLUMETRIC DAMPERS WILL BE AJUSTED TO LIMIT THE CFM OUT OF EACH DISTRIBUTION

TESTING, ADJUSTING, AND BALANCING (TAB) MUST BE COMPLETED UPON INSTALLATION OF THE NEW HVAC SYSTEM. THE MANUAL OUTDOOR AIR 10.

RESOURCES ARE AVAILABLE UPON REQUEST.

ALL ELECTRICAL WORK MUST MEET LOCAL, STATE, AND FEDERAL REQUIREMENTS AS WELL AS FAA-STD-19F, CHG 2 AND FAA-C-H, CHG1. FAA 9.

CONTRACTOR MUST REUSE EXISTING GROUNDING CONDUCTOR. ATTACH TO NEW UNIT USING EXISTING CONNECTOR ONTO BARE METAL.8.

CLEAN ROOF DRAINS, AND REMOVE DEBRIS DURING CONSTRUCTION.7.

INSTALL A NEW COPPER CONDENSATE DRAIN ACCORDING TO MANUFACTURER'S INSTALLATION INSTRUCTIONS. PROVIDE SHOP DRAWINGS.6.

THE NEW HVAC UNIT MUST FIT ON THE EXISTING VIBRATION ISOLATION CURB. NEW UNIT MUST BE SUBMITTED FOR APPROVAL.5.

WHEN INSTALLING NEW UNIT, THE POWER CONDUCTORS WILL BE RE-USED FROM THE EXISTING UNIT.4.

SCOPE OF WORK, MEANS AND METHODS, SCHEDULE, SITE COMMUNICATION PLAN, PRODUCT SUBMITTALS, AND SDS.

A WRITTEN WORK PLAN AND MUST BE SUBMITTED TO THE COR PRIOR TO THE START OF ANY CLEANING WORK. THE WORK PLAN MUST INCLUDE 3.

CERTIFIED CLEANER.

All EXISTING DUCTWORK, GRILLES/REGISTERS, DISTRIBUTION BOXES, AND PLENUMS TO BE REUSED MUST BE CLEANED AND SANITIZED BY A NADCA 2.

THIS, THE LENGTH OF THE HARDLINE DUCT WORK WILL NEED TO BE EXTENDED AS REQUIRED.

ALL FLEX DUCTWORK MUST HAVE A MAXIMUM LENGTH OF 6 FEET. THE MINIMUM LENGTH OF FLEXIBLE DUCT SHOULD BE USED. TO ACCOMPLISH 1.

NOTES:

A

B

DRAIN THAT DRAINS DIRECTLY INTO EXISTING ROOF DRAIN.

FROM THE UNIT. CONTRACTOR MUST PROVIDE SHOP DRAWING OF CONDENSATE

NOTE: DISTANCE A AND B CONTROL THE DISTANCE OF THE DRAIN OUTLET

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08/22/2023

MGR: ENGINEERING CENTER

NORWOOD

OWD-23000102-M002

SP

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ATCT

HVAC REPLACEMENT AND ROOF REHAB PROJECT

MECHANICAL DUCTWORK DETAIL

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OPS INFRASTRUCTURE

ENGINEERING SERVICES

ATO - TECHNICAL OPERATIONS EASTERN SERVICE AREA

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NORWOOD MEMORIAL AIRPORT

THIS DRAWING PRODUCED ON NEW ENGLAND REGION CAD SYSTEM

PROJECT ENGINEER

23000102

08/22/2023 CONSTRUCTION 23000102

MA

owd-23000102-m002