Stokes Co Animal Shelter - M Rev2 Addenda # 2.pdf

MECHANICAL GENERAL NOTES

1. MATERIALS, EQUIPMENT AND INSTALLATION SHALL COMPLY WITH ALL REQUIREMENTS OF THE

CONTRACT DOCUMENTS, BUILDING CODES, AND EQUIPMENT / MATERIALS INSTALLATION

INSTRUCTIONS.

2. INSTALL ALL EQUIPMENT IN STRICT ACCORDANCE WITH THE MANUFACTURER'S INSTALLATION

INSTRUCTIONS.

3. CONTRACTOR SHALL VERIFY ALL EQUIPMENT, PIPING, AND DUCTWORK HAS BEEN INSTALLED IN A

MANNER THAT VIBRATIONS WILL NOT BE TRANSMITTED TO THE BUILDING STRUCTURE.

4. LOCATE MANUAL DAMPERS, ACCESS DOORS, VALVES, AIR VENTS, DRAINS AND THE LIKE IN

ACCESSIBLE POSITIONS WITH ADEQUATE CLEARANCE FOR ACCESS AND MAINTENANCE.

COORDINATE AND LOCATE DEVICES SO ACCESS IS NOT BLOCKED BY LIGHTS, GRILLS, DUCTWORK, PIPING, STRUCTURE, CONDUIT AND THE LIKE.

5. ANY TIME DUCT SMOKE DETECTORS ARE INSTALLED, THEY SHALL BE EITHER CONNECTED TO THE BUILDING FIRE ALARM SYSTEM (IF PRESENT) OR A REMOTE AUDIBLE/VISUAL ANNUNCIATOR IN A

NORMALLY OCCUPIED PORTION OF THE BUILDING.

6. EQUIPMENT, DUCT AND PIPING LAYOUTS ARE GENERALLY DIAGRAMMATIC.

7. BALANCE AIRFLOWS TO 10% +/- OF VALUES SHOWN.

8. DUCT

a. RESIZE DUCT TO ACCOMMODATE ACTUAL FIELD CONDITIONS. MAINTAIN DUCT VELOCITY AS

DESIGNED. MAINTAIN A MAXIMUM ASPECT RATIO OF 2:1.

b. DUCT MATERIAL SHALL BE G-60 COATED GALVANIZED STEEL OF ASTM STANDARDS A653 AND A924

GRADES.

c. DOUBLE WALL SPIRAL DUCT TO HAVE PERFORATED INNER WALL, SOLID INNER WALL FOR

FITTINGS, GALVANIZED STEEL SURFACE FINISH. HANG DOUBLE WALL DUCT WITH GRIPPLE

HANGING SYSTEMS (OR EQUIVALENT) CABLE HANGERS.

d. RECTANGULAR DUCT MAY BE USED IN LIEU OF ROUND OR VICE VERSA.

e. ALL DUCTWORK SHOWN OF THE PLANS ARE FREE FLOW AREA (DOES NOT INCLUDE DUCT AND

INSULATION THICKNESS).

f. SEALING: SMACNA SEAL CLASS C: A MINIMUM OF TWO LAYERS OF MASTIC SHALL BE APPLIED TO

TRAVERSE JOINTS. WIDTH SHALL EXTEND ½” ON EACH SIDE OF THE SEAM. MASTIC SHALL BE

THICK ENOUGH SO THAT NO METAL IS VISIBLE THROUGH THE MASTIC. NOT APPLICABLE TO

EXPOSED DUCT IN CONDITIONED SPACES. SEAL ALL TRANSVERSE JOINTS, LONGITUDINAL SEAMS, DUCT WALL PENETRATIONS OF AIR HANDLERS AND FILTER BOXES. DUCT SEALING MUST BE

INSPECTED BY THE LOCAL CODE OFFICIAL PRIOR TO INSTALLING EXTERNAL DUCT WRAP

INSULATION.

g. DUCT PRESSURE CLASS IS <2” UNLESS NOTED OTHERWISE.

h. INSULATION:

i. INDOORS: SUPPLY, RETURN, AND OUTSIDE AIR DUCT INSULATION: R6 DUCT LINER.

ii. OUTSIDE: INSULATE EXTERIOR OF DUCT WITH A RIGID DUCT BOARD AND COAT WITH MASTIC

FOR WATER-PROOFING. INSTALL INSULATION TO ALLOW WATER TO DRAIN OFF TOP OF DUCT.

PONDING OF WATER ON DUCT IS NOT ACCEPTABLE.

i. DUCTWORK AND PIPING SHALL BE STORED IN COVERED AREAS SO THAT IT IS NOT EXPOSED TO THE ELEMENTS. THE ENDS OF THE DUCT MUST BE WRAPPED TO PREVENT DEBRIS FOR ENTERING

THE DUCT.

j. INSTALL DUCT PER CURRENT SMACNA STANDARDS AND NC MECH CODE. DUCT SHALL BE

GALVANIZED.

k. RADIUS ELS SHALL BE SMOOTH RADIUS TYPE WITH TWO SPLITTER VANES. SQUARE MITERED ELS

SHALL HAVE SMACNA TYPE 1 SINGLE THICKNESS TURNING VANES WITH MINIMUM ¾” TRAILING

EDGES.

l. ALL BRANCH DUCTS SHALL BE 45 DEGREE ENTRY TYPE.

m. PROVIDE BALANCING DAMPERS AT ALL BRANCH RUNOUTS TO GRILLES. BALANCING DAMPERS

MUST BE ACCESSIBLE.

n. FLEX DUCT SHALL BE UL 181 LISTED.

9. ALL ROOF OPENINGS SHALL BE PROVIDED BY THE GC AND CLOSELY COORDINATED WITH THE

STRUCTURAL ENGINEER.

10.ALL MISCELLANEOUS STEEL SUPPORTS PROVIDED FOR EQUIPMENT, PIPING, AND ACCESSORIES

SHALL BE FULLY COATED WITH APPROVED SHOP PRIMER PAINT.

11.PROVIDE SECONDARY DRAIN PANS WITH CONDENSATE OVERFLOW CUT-OFF SWITCH FOR EACH

FAN COIL.

12.THE MECHANICAL CONTRACTOR SHALL COORDINATE UNIT ELECTRICAL DATA WITH ELECTRICAL

CONTRACTOR ON ALL EQUIPMENT DEVIATIONS FROM THE DESIGN DRAWINGS.

13.ALTERNATE EQUIPMENT MANUFACTURERS.

a. HVAC EQUIPMENT: CARRIER, DAIKIN, AMERICAN STANDARD TRANE, AND VALENT.

b. DIFFUSERS AND GRILLES: PRICE, NAILOR AND METAL AIRE.

c. FANS: GREENHECK, COOK AND PENN

d. MINI-SPLITS: MITISUBISHI AND DAIKIN

14.PIPING

a. CONDENSATE: SCHEDULE 40 PVC.

b. GAS: LABEL PIPE IN ACCORDANCE WITH CODE. GAS PIPING SHALL BE SCHEDULE 40 STEEL, ASTM A-106, WITH MALLEABLE THREADED FITTINGS FOR 2” AND SMALLER AND WITH WELDED FITTINGS

FOR 2.5” AND LARGER. GAS PIPING EXPOSED ON THE ROOF SHALL BE PRIMED AND PAINTED.

SUPPORT ½” PIPING AT 6 FOOT INTERVALS, ¾” AND 1” PIPING AT 8 FOOT INTERVALS AND 1 ¼” AND

LARGER AT 10 FOOT INTERVALS. VIEGA MEGA PRESS FITTINGS ARE ACCEPTABLE.

c. FIRE CAULK ALL PIPING PENETRATIONS TO MATCH FIRE RATINGS (IF NEEDED).

MECHANICAL DRAWINGS INDEX

M1.1 MECHANICAL NOTES AND SCHEDULES.

M1.2 MECHANICAL SCHEDULES AND DETAILS.

M2.1 MECHANICAL PLAN.

M2.2 MECHANICAL PLAN - PKU-1 RETURN DUCT.

M3.1 PKU-1/ VAV SEQUENCE OF OPERATIONS.

M3.2 DOAS-1 SEQUENCE OF OPERATIONS.

M3.3 DOAS-2 SEQUENCE OF OPERATIONS.

M3.4 EXHAUST FAN SEQUENCE OF OPERATIONS.

SUPPLY AIR GRILLE

SYMBOL DESCRIPTION

MECHANICAL SYMBOLS & LEGEND

RETURN AIR GRILLE

EXHAUST AIR GRILLE

DUCT TRANSITION

SMOOTH RADIUS ELBOW

(RADIUS = 1.5 x DUCT DEPTH)

90° ELBOW WITH TURNING VANES

FIRE DAMPER (VERTICAL)

FIRE DAMPER (HORIZONTAL)

OR RADIATION DAMPER

FLEX DUCT

VOLUME DAMPER

MANUAL DAMPER

CONNECT NEW TO EXISTING

T THERMOSTAT

XX

X

AIR DISTRIBUTION TAG

(SEE SCHEDULE)

CFM

2018 APPENDIX B

BUILDING CODE SUMMARY FOR ALL COMMERCIAL PROJECTS

MECHANICAL DESIGN

MECHANICAL SYSTEMS, SERVICE SYSTEMS AND EQUIPMENT

MECHANICAL SUMMARY

THERMAL ZONE 4A

WINTER DRY BULB: 14°F

SUMMER DRY BULB: 93°F

INTERIOR DESIGN CONDITIONS

WINTER DRY BULB: 70°F

SUMMER DRY BULB: 74°F

RELATIVE HUMIDITY: 30-50%

BUILDING HEATING LOAD: 133 MBH

BUILDING COOLING LOAD: 16.4 TONS

MECHANICAL SPACING CONDITIONING SYSTEM

UNITARY

DESCRIPTION OF UNIT: SEE EQUIPMENT NOTES.

HEATING EFFICIENCY: SEE EQUIPMENT NOTES.

COOLING EFFICIENCY: SEE EQUIPMENT NOTES.

HEAT OUTPUT OF UNIT: SEE EQUIPMENT NOTES.

COOLING OUTPUT OF UNIT: SEE EQUIPMENT NOTES.

BOILER

SIZE CATEGORY. IF OVERSIZED, STATE REASON: N/A

CHILLER

SIZE CATEGORY. IF OVERSIZED, STATE REASON: N/A

LIST EQUIPMENT EFFICIENCIES: N/A

210 N. MAIN ST. SUITE 340

KERNERSVILLE, NC

LC# P-0504

DEC. 01, 2025

MECHANICAL NOTES AND

SCHEDULES.

M1.1

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VA

C D

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1 12-17-2025 SCHEDULE CHANGES

2 01-05-2026 SCHEDULE CHANGES

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PROJECT NO.

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REVISIONS

AutoCAD SHX Text C COPYRIGHT 2025 NO PART OF THIS DRAWING MAY BE REPRODUCED WITHOUT THE WRITTEN CONSENT OF FREEMAN KENNETT ARCHITECTS, PLLC

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A NEW ANIMAL SHELTER FOR STOKES COUNTY, NC

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1075 DODGETOWN RD WALNUT COVE, NC 27052

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SEAL

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AutoCAD SHX Text 01/05/2026

AutoCAD SHX Text (336)999-4097