2490-2-M-09SEP25.pdf

MECHANICAL SPECIFICATIONS

THE WORK INCLUDES PROVIDING MATERIALS, FITTINGS AND ACCESSORIES NECESSARY FOR A COMPLETE FUNCTIONING HVAC SYSTEM. ALL

MATERIALS FURNISHED BY THE CONTRACTOR SHALL BE NEW AND UNUSED AND FREE FROM DEFECTS. ANY ITEM NOT SPECIFICALLY SHOWN ON

THE DRAWINGS OR CALLED FOR IN THE SPECIFICATIONS, BUT THAT IS NORMALLY REQUIRED TO CONFORM TO THE INTENT, ARE TO BE

CONSIDERED A PART OF THE CONTRACT. THE WORK MAY ALSO INCLUDE ROUGH-IN AND FINAL CONNECTIONS TO EQUIPMENT PROVIDED BY

OTHERS. ALL WORK SHALL BE IN ACCORDANCE WITH LOCAL CODES AND/OR ORDINANCES AND IS SUBJECT TO INSPECTION.

PROVIDE EQUIPMENT INDICATED ON THE DRAWINGS, AND AS REQUIRED FOR A COMPLETE FUNCTIONING SYSTEM. INSTALL ALL HVAC EQUIPMENT

AND MATERIALS IN ACCORDANCE WITH MANUFACTURER'S RECOMMENDATIONS.

ALL HVAC WORK SHALL CONFORM TO THE REQUIREMENTS OF THE LATEST ADOPTED EDITIONS OF THE NORTH CAROLINA BUILDING CODES.

INCLUDE PERMITS AND INSPECTION FEES IN CONTRACT.

THE INTENT OF THE DRAWINGS IS TO INDICATE THE GENERAL EXTENT OF WORK REQUIRED FOR THE PROJECT. THE DRAWINGS FOR MECHANICAL

WORK ARE DIAGRAMMATIC, SHOWING THE LOCATION, TYPE, DEVICES AND EQUIPMENT REQUIRED. THE DRAWINGS SHALL NOT BE SCALED FOR

EXACT MEASUREMENTS. PROVIDE ALL EQUIPMENT, DEVICES, ACCESSORIES, DUCTWORK, OFFSETS, TRANSITIONS, MATERIALS, ETC. NECESSARY TO

FACILITATE THE SYSTEM'S FUNCTIONING AS INDICATED BY THE DESIGN AND THE EQUIPMENT FURNISHED BY OTHERS.

DEFINITIONS: FURNISH MEANS TO SUPPLY AND DELIVER TO PROJECT SITE, READY FOR INSTALLATION. INSTALL MEANS TO PLACE IN POSITION

AND MAKE CONNECTIONS FOR SERVICE OR USE. PROVIDE MEANS TO FURNISH AND INSTALL, COMPLETE AND READY FOR INTENDED USE.

WARRANTY: GUARANTEE ALL MATERIALS, EQUIPMENT AND WORKMANSHIP FOR TWO YEARS FROM THE DATE OF FINAL ACCEPTANCE BY OWNER

AS STATED IN WRITING, EXCEPT REFRIGERATION COMPRESSORS WHICH SHALL HAVE A FIVE YEAR EXTENDED GUARANTEE. REPAIR AND/OR

REPLACE, WITHOUT ANY COST TO THE OWNER, ANY DEFECTIVE PART OR PARTS OF THE WORK WITHIN THE GUARANTEE PERIOD FROM THE TIME

THE SYSTEM IS PUT INTO OPERATION AS DETERMINED BY THE DATE OF FINAL CERTIFICATE OF PAYMENT WITH EXCEPTIONS AS NOTED.

PROVIDE OPERATION MANUALS, MAINTENANCE MANUALS AND SCHEMATICS FOR ALL MECHANICAL EQUIPMENT INSTALLED.

MAINTAIN A SOLELY DEDICATED DRAWING SET FOR RECORD DRAWING PURPOSES. RECORD CHANGES AS THEY OCCUR ON THIS SET, CLEARLY

AND PROFESSIONALLY. PROVIDE AS BUILT DRAWINGS TO OWNER UPON COMPLETION OF WORK.

CONTRACTOR SHALL AQUIRE A FULL UNDERSTANDING OF PHASING REQUIREMENTS FOR THIS PROJECT PRIOR TO BID. COORDINATE ALL PHASING

REQUIREMENTS WITH G.C. AND OWNER.

OR DEVICE APPEARING ON THIS LEGEND.

HVAC PLAN SYMBOLS

NOTE: THIS PROJECT MAY NOT USE EVERY SYMBOL

HVAC ABBREVIATIONS

ABV ABOVE

AD DUCT ACCESS DOOR

BDD BACK-DRAFT-DAMPER

CD CEILING DIFFUSER

CFM CUBIC FEET/MINUTE

CWS CHILLED WATER SUPPLY

CWR CHILLED WATER RETURN

COMP COMPRESSOR

DMPR DAMPER

EC ELECTRICAL CONTRACTOR

EF EXHAUST FAN

EG EXHAUST GRILLE

ER EXHAUST REGISTER

EVAP EVAPORATOR

FRAG FILTERED RETURN AIR GRILLE

FD FIRE DAMPER, PER ASSEMBLY RATING

FOB FLAT ON BOTTOM DUCT TRANSITION

FOT FLAT ON TOP DUCT TRANSITION

GC GENERAL CONTRACTOR

PC PLUMBING CONTRACTOR

PDD PERFORATED FACE DIRECTIONAL DIFFUSER

RAD RETURN-AIR DUCT

RAG RETURN AIR GRILLE

RAR RETURN AIR REGISTER

RCD ROUND CEILING DIFFUSER

RDR ROUND DUCT REGISTER

RH RADIANT HEATER

RTS ROUND TO SQUARE DUCT TRANSITION

RTU ROOFTOP HVAC UNIT

T'STAT THERMOSTAT

2024 APPENDIX B

BUILDING CODE SUMMARY FOR ALL COMMERCIAL PROJECTS

MECHANICAL design mechanical summary

MECHANICAL SYSTEMS, SERVICE SYSTEMS AND EQUIPMENT

Thermal Zone winter dry bulb: ___________ summer dry bulb: ___________

Interior design conditions winter dry bulb: ___________ summer dry bulb: ___________ relative humidity: ___________

Building heating load: ___________

Building cooling load: ___________

Mechanical Spacing Conditioning System Unitary description of unit: ___________ heating efficiency: ___________ cooling efficiency: ___________ size category of unit: ___________

Boiler Size category. If oversized, state reason.: ___________

Chiller Size category. If oversized, state reason.: ___________

List equipment efficiencies: ___________

EXISTING

EXISTING

SEE SCHEDULE(S)

18° F

91.5° F

68° F

75° F

50%

SEE SCHEDULE(S)

SEE SCHEDULE(S)

SEE SCHEDULE(S)

SEE SCHEDULE(S)

6" CONCRETE PAD

ELECTRICAL

ROOM

460V, 3PH, 600 AMP

PANEL

EXISTING

EXISTING

EVAPORATOR

PUMP PKG

CWS

22'-10i"

7'-9"

EXISTING

6" CWS

EXISTING

6" CWR

RLAQTY.

COMPRESSOR DATA

AMBIENT EAT(°FDB)

CONDENSER DATA

DESIGN

(FT.WG)

(°F)

FLOW

(TONS)

CAPACITY

NET

AIR-COOLED CHILLER SCHEDULE

LOW

EVAPORATOR DATA

MAX.WPDLWT

(°F)

EWT

(TONS)

CAPACITY

OPERATING

EER

PERFORMANCE DATA

NPLV.IP (GPM)

FACTOR

FOULING

FLUID LRA STARTER

QTY.

FAN

FLA

FAN

ELECTRICAL DATA

VOLTAGE MCA MOCP

UNIT (SINGLE POINT) CONTROL CIRCUIT HEATER CIRCUIT

VOLTAGE KW VOLTAGE KW

MODEL NO.

MANUFACTURER &

MARK

53.14

29.1

48125

58118.2 10.48 17.89 300.8

0.0001 WATER 316 ALS

6 4.0 460/60/3 263 300 120V 0.5 NA NA

YORK YLAA0120SJ46XFBACC-1

REF

R-454B

OPERATING

WEIGHT(LBS)

6" CONCRETE PAD

ELECTRICAL

ROOM

460V, 3PH, 600 AMP

PANEL

EXISTING

EXISTING

22'-10i"

7'-9"

EXISTING

6" CWS

EXISTING

6" CWR

10' MIN

6' MIN

6' MIN

SINGLE POINT POWER

CONNECTION.

EX ACC-1

NEW ACC-2

5"

5"

5"

6"

53.14

29.1

48125

58118.2 10.48 17.89 300.8

0.0001 WATER 316 ALS

6 4.0 460/60/3 263 300 120V 0.5 NA NA

YORK YLAA0120SJ46XFB

ACC-2

R-454B

INTERFACE NEW CHILLERS WITH EXISTING AUTOMATED CONTROLS.

ISOLATING VALVE - NORMALLY OPEN

ISOLATING VALVE - NORMALLY CLOSED

FLOW REGULATING VALVE

FLOW MEASUREMENT DEVICE

STRAINER

PRESSURE TAPPING

FLOW SWITCH

FLANGED CONNECTION

DEMOLITION PLAN

SCALE: 1/8" = 1'-0"

RENOVATION PLAN

SCALE: 1/8" = 1'-0"

AIR COOLED CHILLER

CHILLED WATER PIPING

TYPICAL EVAPORATOR PIPING CONNECTIONS

NO SCALE

E V A P O R A T O R

CHILLED LIQUID PIPING

HAND STOP VALVES ARE RECOMMENDED FOR USE IN ALL LINES TO

FACILITATE SERVICING.

DRAIN CONNECTIONS SHOULD BE PROVIDED AT ALL LOW POINTS

TO PERMIT COMPLETE DRAINAGE OF THE COOLER AND SYSTEM

PIPING.

THE COOLER MUST BE PROTECTED BY A STRAINER, PREFERABLY

OF 40 MESH, FITTED AS CLOSE AS POSSIBLE TO THE LIQUID INLET

CONNECTION, AND PROVIDED WITH A MEANS OF LOCAL ISOLATION.

THE COOLER MUST NOT BE EXPOSED TO FLUSHING VELOCITIES OR

DEBRIS RELEASED DURING FLUSHING. IT IS RECOMMENDED THAT A

SUITABLY SIZED BYPASS AND VALVE ARRANGEMENT IS INSTALLED

TO ALLOW FLUSHING OF THE PIPING SYSTEM. THE BYPASS CAN BE

USED DURING MAINTENANCE TO ISOLATE THE HEAT EXCHANGER OR

OTHER UNITS.

PRESSURE GAUGE CONNECTIONS ARE RECOMMENDED FOR

INSTALLATION IN THE INLET AND OUTLET WATER LINES. GAUGES

ARE NOT FURNISHED WITH THE UNIT AND ARE TO BE FURNISHED

BY OTHER SUPPLIERS.

THE CHILLED LIQUID LINES THAT ARE EXPOSED TO OUTDOOR

AMBIENTS SHOULD BE WRAPPED WITH A SUPPLEMENTAL HEATER

CABLE AND COVERED WITH INSULATION.

A FLOW SWITCH IS AVAILABLE AS AN ACCESSORY ON ALL UNITS.

THE FLOW SWITCH (OR ITS EQUIVALENT) MUST BE INSTALLED IN

THE LEAVING WATER PIPING OF THE COOLER.

PROVIDE SCHEDULED EQUIPMENT OR EQUAL BY:

1. TRANE

2. CARRIER

3. MCQUAY

NOTE: DISPOSITION OF EXISTING CHILLER SHALL BE COORDINATED WITH OWNER PRIOR

TO BEGINNING WORK. CONTRACTOR SHALL HAND OVER TO OWNER ANY EQUIPMENT

COMPONENTS, RE-CLAIMED R-410 REFRIGERANT OR ACCESSORIES REQUESTED.

VSD SINGLE

PUMP

(FT.WG)

REQ. ESP

20.0

20.0

(FT.WG)

AVAILABLE ESP

49.1

49.1

HP

7.5

7.5

HYDRO-KIT (NOT DEPICTED) – FACTORY INSTALLED HYDRO-KIT SUITABLE

FOR WATER GLYCOL SYSTEMS WITH UP TO 35% GLYCOL AT LEAVING

TEMPERATURES DOWN TO 20°F. THE HYDRO-KIT OPTION IS AVAILABLE IN

A SINGLE OR DUAL CONFIGURATION (DUAL AS STANDBY DUTY ONLY),

WITH TOTALLY ENCLOSED PERMANENTLY LUBRICATED PUMP MOTORS. THE

HYDRO-KIT OPTION COMES STANDARD WITH A BALANCING VALVE,

DISCHARGE CHECK VALVE, DISCHARGE SHUTOFF VALVE, THERMAL

DISPERSION FLOW SWITCH, PRESSURE PORTS, INLET WYE-STRAINER,

BLEED AND DRAIN VALVES AND FROST PROTECTION. SERVICE SHUT OFF

VALVES, ADDITIONAL PRESSURE PORTS AND EXPANSION TANKS ARE

OPTIONAL WITHIN THE HYDRO-KIT OPTION.

PUMP

KIT

PUMP

KIT

EXISTING

CHILLER #1

EXISTING

CHILLER #2

SCOPE OF WORK

REMOVAL AND REPLACEMENT OF (1) 125 TON CHILLER.

EXISTING CHILLER #2 TO BE REPLACED WITH NEW

PACKAGED CHILLER ACC-2.

CHILLER REPLACEMENT SHALL INCLUDE REPLACING ALL

ASSOCIATED ISOLATING VALVES (N.O. & N.C.), FLOW

REGULATING VALVE, FLOW MEASURING DEVICE, PRESSURE

TAPPING, FLOW SWITCH, AND FLANGED CONNECTIONS (IF

SHOWING PITTING OR WEAR). VERIFY EXISTING

COMPONENT QUANTITIES AND CHARACTERISTICS IN FIELD.

CONTRACTOR IS RESPONSIBLE FOR RE-INSULATING ALL

EXPOSED PIPING FROM VALVE REPLACEMENT OR ANY

OTHER DEVICE REPLACEMENT BACK TO ORIGINAL

CONDITION.

PROVIDE TEE AND ISOLATION VALVE FOR CONNECTION OF

BACK-UP CHILLER. PROVIDE ADDITIONAL CHILLER

ISOLATION VALVES IF NOT PROVIDED WITH PUMP

PACKAGE.

NOTE 1

NOTE 1

NOTE 1

ACC-1

5"

PUMP

KIT

6"

TO REMAIN

TO BE REPLACED

OF 1

M-1

SCALE: 1/8" = 1'-0"

REF. NORTH

MECHANICAL PLANS

SHEET NO.

ORIGINAL ISSUE DATE

JOB NO.

REVISIONS

2490-2

09SEP25

C 2025 EUBANKS HUMPHREY ENGINEERING, P.C.

WRITTEN CONSENT OF THE ENGINEER.

REPRODUCED IN PART OR IN WHOLE WITHOUT THE SPECIFIC

ARE PROTECTED UNDER COPYRIGHT LAWS AND MAY NOT BE

REMAIN THE PROPERTY OF THE ENGINEER. THESE DRAWINGS

THESE DRAWINGS ARE INSTRUMENTS OF SERVICE AND SHALL

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