HomeMy WebLinkAbout227 Pine St BLD-22-3806034DIVISION 23 — HVAC SPECIFICATIONS
I) GENERAL
A) REFERENCES:
1)THE HEATING, VENTILATION, AND AIR CONDITIONING (HVAC) CONTRACTOR SHALL HEREAFTER BE DESCRIBED AS 'THE CONTRACTOR -IN THIS HVAC
SPECIFICATION.
B) WORK INCLUDED:
1)THE CONTRACTOR SHALL PROVIDE, INSTALL, PIPE, DUCT, AND WIRE, AS REQUIRED, THE HVAC SYSTEMS DESCRIBED IN THESE SPECIFICATIONS
AND SHOWN OR DESCRIBED IN THE DRAWINGS TO DELIVER A COMPLETE, FUNCTIONAL, AND CODE COMPLIANT MECHANICAL SYSTEM INSTALLATION.
C) CONTRACT DOCUMENTS:
1)THE SPECIFICATIONS AND DRAWINGS ARE INTENDED TO BE COMPLEMENTARY. WORK CALLED FOR IN EITHER IS BINDING AS THOUGH CALLED FOR
IN BOTH.
2) THESE SPECIFICATIONS INCLUDE GENERAL REQUIREMENTS FOR ALL WORK REPRESENTED ON DRAWINGS. NOT ALL SYSTEMS OR SYSTEM
COMPONENTS DESCRIBED IN THESE SPECIFICATIONS ARE NECESSARILY INCLUDED AS A PART OF THIS PROJECT.
3) DRAWINGS ARE DIAGRAMMATIC IN NATURE AND DO NOT NECESSARILY INDICATE EVERY REQUIRED OFFSET, TRANSITION, FITTING, OR ITEM
REQUIRED. LIKEWISE, SPECIFICATIONS MAY NOT DESCRIBE EACH AND EVERY DETAIL CONCERNING WORK TO BE DONE AND MATERIALS TO BE
FURNISHED. ITEMS NOT SPECIFICALLY MENTIONED IN THE SPECIFICATIONS OR NOTED ON THE DRAWINGS, BUT WHICH ARE OBVIOUSLY NECESSARY
TO PRODUCE A COMPLETE INSTALLATION SHALL BE PROVIDED.
4) DIMENSIONS ARE SHOWN FOR CRITICAL AREAS ONLY AS AN AID TO THE CONTRACTOR; ALL DIMENSIONS AND ACTUAL PLACEMENTS ARE TO
BE VERIFIED IN THE FIELD.
5) DRAWINGS ARE NOT INTENDED TO BE SCALED FOR ROUGH —IN TAKEOFF MEASUREMENTS.
6) ALL TRADE SUBCONTRACTORS ARE TO NOTE THAT THE ORGANIZATION OF SPECIFICATIONS INTO DIVISIONS, AND LIKEWISE THE ARRANGEMENT
OF THE DRAWINGS, IS SET UP FOR THE CONVENIENCE OF UNDERSTANDING THE SCOPE OF THE WORK ONLY. THIS STRUCTURING SHALL NOT
CONTROL THE GENERAL CONTRACTOR IN DIVIDING THE WORK AMONG TRADE SUBCONTRACTORS OR IN ESTABLISHING THE EXTENT OF THE WORK
TO BE PERFORMED BY ANY TRADE. REFER TO GENERAL CONDITIONS.
7) IN THE EVENT OF A DISCOVERED DISCREPANCY OR AMBIGUITY, IT SHALL BE BROUGHT TO THE ATTENTION OF THE ENGINEER IN A TIMELY
FASHION. THE CONTRACTOR SHALL NOT PROCEED WITH RELATED WORK WITHOUT A WRITTEN CLARIFICATION FROM THE ENGINEER.
D) RELATED DOCUMENTS:
1)THE GENERAL PROVISIONS OF THE CONTRACT, INCLUDING GENERAL AND SUPPLEMENTAL GENERAL CONDITIONS OF THE CONTRACT AND DIVISION 1
SPECIFICATION SECTIONS PROVIDED BY THE ARCHITECT, AND ALL OTHER DRAWINGS AND SPECIFICATIONS PROVIDED AS A PART OF THIS
PROJECT, APPLY TO THIS DIVISION 23 AND TO ALL CONTRACTORS, SUBCONTRACTORS, OR OTHER PERSONS SUPPLYING MATERIALS AND/OR
LABOR, ENTERING INTO THE PROJECT SITE AND/OR PREMISES, DIRECTLY OR INDIRECTLY.
E) CODES:
1)THE MASSACHUSETTS STATE BUILDING CODE (780 CMR — NINTH EDITION), THE 2015 INTERNATIONAL MECHANICAL CODE (IMC), 2015
INTERNATIONAL BUILDING CODE (IBC), 2018 INTERNATIONAL ENERGY CONSERVATION CODE (IECC) ARE THE GOVERNING CODES FOR ALL HVAC
WORK. OTHER CODES OR STANDARDS REFERENCED WITHIN THE ABOVE LISTED CODES SHALL BE CONSIDERED A PART OF THE CODE
REQUIREMENTS TO THE PRESCRIBED EXTENT OF EACH SUCH REFERENCE. WHERE DIFFERENCES OCCUR BETWEEN PROVISIONS OF THE CODE AND
THE REFERENCED STANDARDS, THE PROVISIONS OF THE CODE SHALL APPLY.
2) EXCEPT WHERE SPECIFICALLY DESCRIBED OTHERWISE IN THESE SPECIFICATIONS, ALL COMPONENTS ALLOWED WITHIN THE ABOVE REFERENCED
CODES SHALL BE ALLOWED AS A PART OF THE WORK.
3) IT IS THE RESPONSIBILITY OF THE CONTRACTOR TO BE FAMILIAR WITH THE REQUIREMENTS OF ALL GOVERNING CODES, ORDINANCES AND
REGULATIONS AS THEY HAVE BEEN ADOPTED BY THE AUTHORITIES HAVING JURISDICTION.
F) PERMITS, FEES AND
REGULATIONS:
1)THE CONTRACTOR SHALL BE RESPONSIBLE FOR OBTAINING AND PAYING FOR HVAC PERMITS TAXES CO
NNECTION AN
D INSPECTION
FEES AS
REQUIRED FOR THE COMPLETE INSTALLATION OF THE HVAC SYSTEM. THE CONTRACTOR SHALL PROVIDE TO THE OWNER ALL CERTIFICATES OF
INSPECTION ISSUED BY THE JURISDICTION.
G) SITE INSPECTION:
1)PRIOR TO BEGINNING WORK, THE CONTRACTOR SHALL REVIEW THE COMPLETE CONSTRUCTION DOCUMENTS PACKAGE AND VISIT THE SITE TO
EXAMINE EXISTING CONDITIONS THAT WILL BE ENCOUNTERED DURING THE PERFORMANCE OF WORK. THE ARCHITECT AND ENGINEER SHALL BE
NOTIFIED OF ANY DISCREPANCIES OR CONFLICTS IDENTIFIED.
H) COORDINATION:
1)THE CONTRACTOR SHALL COORDINATE WORK WITH ALL OTHER TRADES AS REQUIRED THROUGHOUT THE COURSE OF THE PROJECT IN ORDER TO
AVOID CONFLICTS AND PROMOTE THE SUCCESSFUL PROGRESSION OF WORK BY ALL TRADES. ANY WORK REQUIRING REMOVAL AND
REINSTALLATION DUE TO THE LACK OF COORDINATION SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR AT NO ADDITIONAL COST TO THE
OWNER.
I) DELIVERY AND STORAGE OF MATERIALS:
1)PROMPTLY INSPECT SHIPMENTS TO VERIFY THAT MATERIALS AND EQUIPMENT ARE UNDAMAGED AND COMPLY WITH PROJECT REQUIREMENTS.
2) PROTECT MATERIALS AND EQUIPMENT FROM PHYSICAL DAMAGE, CONSTRUCTION DIRT, WATER, AND THE ELEMENTS FROM TIME OF SHIPMENT
TO TIME OF INSTALLATION. DO NOT STORE MATERIALS DIRECTLY ON GRADE.
3) DUCTWORK AND FITTINGS SHALL HAVE ENDS COVERED WITH PLASTIC AT ALL TIMES.
J)RECORD DOCUMENTS:
1)DURING THE PROGRESS OF WORK, THE CONTRACTOR SHALL MAINTAIN AN ACCURATE RECORD OF ALL CHANGES MADE IN THE HVAC
INSTALLATION FROM THE LAYOUT AND MATERIALS CONTAINED IN THE APPROVED DRAWINGS AND SPECIFICATIONS.
2) THE CONTRACTOR SHALL PREPARE RECORD DOCUMENTS SHOWING THE AS —BUILT ARRANGEMENTS OF SYSTEMS INSTALLED. THE ENGINEER'S
AUTOCAD FILES WILL BE PROVIDED AT NO COST TO THE CONTRACTOR FOR USE. RECORD DOCUMENTS SHALL IN
CLUDE ALL APPROVED
SUBSTITUTIONS, CHANGE ORDERS, AND ACTUAL EQUIPMENT AND MATERIALS USED IN THE PROJECT.
3) UPON COMPLETION OF WORK, THE CONTRACTOR SHALL SUBMIT RECORD DOCUMENTS TO THE ARCHITECT AND ENGINEER
K) SUBMITTALS:
1)DRAWINGS AND CATALOG CUTS, SHOWING ALL HVAC EQUIPMENT AND SYSTEM COMPONENTS, SHALL BE SUBMITTED TO THE ENGINEER FOR
APPROVAL.
2) THE CONTRACTOR SHALL FIELD MEASURE AND CAREFULLY REVIEW ARCHITECTURAL AND STRUCTURAL DRAWINGS AND COORDINATE WITH ALL
OTHER TRADES REGARDING THE PROPOSED LOCATIONS FOR NEW EQUIPMENT AND COMPONENTS BEFORE PRODUCING SUBMITTALS.
3) SUBMITTALS AND SHOP DRAWINGS SHALL BE LABELED WITH EQUIPMEN
T TAGS IDE
NTICAL TO THOSE LIST
ED OR SCHEDULED IN CONSTRUCTION
DOCUMENTS.
4) SUBMITTALS SHALL BE CLEARLY MARKED TO IDENTIFY THE SPECIFIC MODEL NUMBER, PERFORMANCE CHARACTERISTICS, OPTIONS, AND
ACCESSORIES FOR THE ITEM(S) BEING SUBMITTED FOR REVIEW. GENERAL PRODUCT SUBMITTALS WILL NOT BE REVIEWED AND WILL BE RETURNED
TO THE CONTRACTOR FOR REVISION AND RESUBMISSION.
5) SUBMITTAL FILE NAMES SHALL INCLUDE SUBMITTAL NUMBER AND REVISION NUMBER OR OTHER UNIQUE IDENTIFIER.
6) NO ITEMS SHALL BE PURCHASED OR ORDERED BEFORE APPROVAL IS GIVEN BY THE ENGINEER IN WRITING.
L)OPERATIONS AND MAINTENANCE MANUAL:
1)PRIOR TO SUBSTANTIAL COMPLETION OF WORK AND OWNER TRAINING, THE CONTRACTOR SHALL PREPARE A DIGITAL PDF AND TWO (2) BOUND
COPIES OF THE OPERATIONS AND MAINTENANCE MANUAL. DIGITAL COPIES SHALL BE SENT TO THE ARCHITECT, AND ENGINEER. BOUND COPIES
WITH DIGITAL COPY ON THUMB DRIVE SHALL BE PROVIDED TO THE OWNER.
2) AT A MINIMUM, THE 0&M MANUAL SHALL CONTAIN A DETAILED TABLE OF CONTENTS, CONTRACTOR AND SUPPLIER CONTACT INFORMATION,
FINAL APPROVED SUBMITTALS, EQUIPMENT MAINTENANCE MANUALS, START—UP PROCEDURES, MANUFACTURER GUARANTEES AND WARRANTY
INFORMATION, EQUIPMENT START—UP REPORTS, TEST AND BALANCE REPORT, PREVENTATIVE MAINTENANCE SCHEDULE, AND FINAL SEQUENCES OF
OPERATION.
M) OWNER TRAINING:
1)THE CONTRACTOR SHALL PROVIDE THE OWNER WITH TRAINING FOR THE PROPER OPERATION AND MAINTENANCE OF FINAL SYSTEMS INSTALLED.
2) CONTENTS OF THE O&M MANUAL SHALL BE REVIEWED DURING OWNER TRAINING.
� N) GUARANTEE:
DIVISION 25 - HVAC CONTROLS AND SEQUENCES OF OPERATION
I) GENERAL
A) REFER TO SPECIFICATION DIVISION 23 - HVAC SPECIFICATIONS, ESPECIALLY GENERAL
FOR WORK INCLUDED, QUALITY ASSURANCE AND RELATED DOCUMENTS.
B) PROVIDE A COMPLETE ELECTRIC/ELECTRONIC CONTROL SYSTEM TO ACCOMPLISH ALL
CONTROL SEQUENCES AS DESCRIBED BELOW.
C) ALL LINE AND LOW VOLTAGE CONTROL WIRING, TRANSFORMERS, DISCONNECTS, ETC
REQUIRED FOR THE CONTROL SYSTEMS THAT IS NOT SHOWN ON THE ELECTRICAL
DRAWINGS SHALL BE PROVIDED BY THE CONTROLS CONTRACTOR (HENCEFORTH CALLED
"THE CONTRACTOR").
1)LINE VOLTAGE POWER FROM CIRCUIT BREAKERS IN ELECTRICAL PANELS TO CONTROL
TRANSFORMERS OR CONTROL DEVICES SHALL BE INSTALLED BY THE CONTRACTOR.
2) COMPLY WITH DIVISION 26 REQUIREMENTS,
3) CONNECT VARIABLE FREQUENCY DRIVES (VFD) AND DUCT & AREA SMOKE
DETECTORS (FURNISHED BY OTHERS) INTO CONTROL CIRCUITS TO ACCOMPLISH THE
SEQUENCES OF OPERATION.
II)PRODUCTS
A) PROVIDE CONTROL PRODUCTS (IF NOT FACTORY PROVIDED BY HVAC EQUIPMENT
MANUFACTURER) INCLUDING, BUT NOT LIMITED TO, CONTROL DAMPERS & VALVES,
THERMOSTATS, TIMECLOCKS, SENSORS, RELAYS, CONTROLLERS, AND OTHER COMPONENTS
AS REQUIRED FOR A COMPLETE INSTALLATION.
B) CONTROL DAMPERS SHALL BE LOW LEAKAGE DAMPERS WITH BLADE AND EDGE
SEALS. CLASS 1 WITH LEAKAGE OF LESS THAN 4 CFM/SQFT AT 1.0"W.G. AND 8
CFM/SQFT AT 4.0"W.G.
C) CONTROL VALVES SHALL BE SELECTED FOR FLUID TYPE, TEMPERATURE AND
PRESSURE CLASS WHICH MATCH PIPING MATERIALS AND END CONNECTIONS. CONTROL
VALVES MUST CLOSE OFF AGAINST MAXIMUM SYSTEM PRESSURE.
D) DAMPER AND VALVE ACTUATORS SHALL BE ELECTRIC, SIZED TO SMOOTHLY OPERATE
DAMPER OR VALVE WITH ADEQUATE TORQUE FOR TIGHT SHUTOFF AGAINST MAXIMUM
1)THE CONTRACTOR SHALL GUARANTEE ALL WORK AND EQUIPMENT FOR A PERIOD OF ONE (1) YEAR FOLLOWING THE DATE OF ACCEPTANCE.
WHERE GUARANTEES PROVIDED BY EQUIPMENT MANUFACTURERS FOR PRODUCTS INSTALLED BY THE CONTRACTOR EXCEED ONE (1) YEAR,
GUARANTEES PROVIDED BY THE EQUIPMENT MANUFACTURERS SHALL ALSO BE PROVIDED BY THE CONTRACTOR BEYOND ONE (1) YEAR.
2) ANY FAULTS DUE TO DEFECTIVE OR IMPROPER MATERIALS, EQUIPMENT, OR WORKMANSHIP THAT DEVELOP WITHIN THE GUARANTEE PERIOD
SHALL BE CORRECTED WITHIN TEN (10) DAYS OF WRITTEN NOTIFICATION FROM THE OWNER BY THE CONTRACTOR AT THE EXPENSE OF THE
CONTRACTOR, INCLUDING FOR DAMAGE CAUSED BY FAULT TO OTHER AREAS OR SYSTEMS. IF CONTRACTOR DOES NOT COMPLY, THE OWNER MAY
HAVE WORK CORRECTED AND CHARGE ALL SUCH WORK TO THE CONTRACTOR.
3) THE CONTRACTOR SHALL FURNISH THE OWNER WITH ALL MANUFACTURER'S GUARANTEES OR WARRANTIES IN THE O&M MANUAL.
II)PRODUCTS
A) GENERAL MECHANICAL MATERIALS:
1)ESCUTCHEONS: AT ALL FINISHED WALL PENETRATIONS, PROVIDE CHROME —PLATED SPLIT —RING ESCUTCHEON. INSIDE DIAMETER SHALL CLOSELY
FIT PIPE OUTSIDE DIAMETER OR OUTSIDE OF PIPE INSULATION WHERE PIPE IS INSULATED. OUTSIDE DIAMETER SHALL COMPLETELY COVER THE
OPENING IN FLOORS, WALLS, OR CEILINGS.
2) UNIONS: MALLEABLE —IRON, CLASS 150 FOR LOW PRESSURE SERVICE AND CLASS 250 FOR HIGH PRESSURE SERVICE; HEXAGONAL STOCK,
WITH BALL—AND—SOCKET JOINTS, METAL —TO— METAL BRONZE SEATING SURFACES; FEMALE THREADED ENDS.
3) DIELECTRIC UNIONS: PROVIDE DIELECTRIC UNIONS WITH APPROPRIATE END CONNECTIONS FOR THE PIPE MATERIALS IN WHICH INSTALLED
(SCREWED, SOLDERED, OR FLANGED), WHICH EFFECTIVELY ISOLATE DISSIMILAR METALS, TO PREVENT GALVANIC ACTION, AND STOP CORROSION.
4) SLEEVES: GALVANIZED SHEET METAL, SCHEDULE 40 STEEL PIPE, OR PVC AS APPROPRIATE FOR THE WALL CONSTRUCTION.
5) SLEEVE SEALS: MODULAR TYPE, CONSISTING OF INTERLOCKING SYNTHETIC RUBBER LINKS SHAPED TO CONTINUOUSLY FILL ANNULAR SPACE
BETWEEN PIPE AND SLEEVE, CONNECTED WITH BOLTS AND PRESSURE PLATES WHICH CAUSE RUBBER SEALING ELEMENTS TO EXPAND WHEN
TIGHTENED, PROVIDING WATERTIGHT SEAL AND ELECTRICAL INSULATION.
6) DRIP PANS: WHERE REQUIRED, PROVIDE DRIP PANS FABRICATED FROM CORROSION —RESISTANT SHEET METAL WITH WATERTIGHT JOINTS, AND
WITH EDGES TURNED UP A MINIMUM OF 2-1/2". REINFORCE TOP, EITHER BY STRUCTURAL ANGLES OR BY ROLLING TOP OVER 1/4" STEEL ROD.
PROVIDE HOLE, GASKET, AND FLANGE AT LOW POINT FOR WATERTIGHT JOINT AND 1" DRAIN LINE CONNECTION.
7) FIRESTOPPING/FIRE—RESISTANT SEALANT: WHERE REQUIRED, PROVIDE A FIRESTOP SYSTEM APPROPRIATE FOR THE ASSEMBLY PENETRATED
AND THE PENETRATING ELEMENT. USE ONLY FIRESTOP PRODUCTS THAT HAVE BEEN UL 1479 OR ASTM E 814 TESTED FOR SPECIFIC FIRE —RATED
CONDITIONS CONFORMING TO CONSTRUCTION ASSEMBLY TYPE, PENETRATING ITEM TYPE, ANNULAR SPACE REQUIREMENT AND FIRE —RATING
INVOLVED FOR EACH SEPARATE INSTANCE. SUBMIT MANUFACTURER'S SPECIFIC DETAIL FOR EACH TYPE OF PENETRATION.
8) ACCESS DOORS: WHERE REQUIRED FOR PROPER SERVICE AND MAINTENANCE OF ALL MECHANICAL COMPONENTS, PROVIDE STEEL ACCESS
DOORS AND FRAMES, FACTORY —FABRICATED AND ASSEMBLED UNITS, COMPLETE WITH ATTACHMENT DEVICES AND FASTENERS SUITABLE FOR THE
SERVICE.
9) VALVES: PRESSURE AND TEMPERATURE RATED AS REQUIRED TO SUIT SYSTEM PRESSURES AND TEMPERATURES. UNLESS OTHERWISE
INDICATED, PROVIDE VALVES OF SAME SIZE AS UPSTREAM PIPE SIZE. VALVE STEM EXTENSIONS SHALL BE PROVIDED FOR INSULATED PIPE.
10) THERMOMETERS: PROVIDE DIRECT MOUNT THERMOMETERS 9" ADJUSTABLE ANGLE TYPE, ALUMINUM CASE, ACRYLIC LENS, ORGANIC SPIRIT
FILL OR SOLAR TYPE, SUITABLE FOR SERVICE REQUIRED. SELECT RANGE SUCH THAT NORMAL FLUID TEMPERATURES FALL WITHIN THE MIDDLE
THIRD OF THE DISPLAY. ACCURACY OF THERMOMETERS SHALL BE PLUS OR MINUS 1 PERCENT FULL SCALE. PROVIDE THERMOMETER WELLS,
BRASS OR STAINLESS STEEL, PRESSURE RATED TO MATCH PIPING SYSTEM DESIGN PRESSURE.
11) PRESSURE GAUGES: PRESSURE GAUGES SHALL BE PHOSPHOR BRONZE BOURDON—TUBE TYPE, ALUMINUM OR BRASS CASE, GLASS LENS,
SUITABLE FOR SERVICE REQUIRED. SELECT RANGE SUCH THAT NORMAL FLUID PRESSURES FALL WITHIN THE MIDDLE THIRD OF THE DISPLAY.
ACCURACY OF PRESSURE GAUGES SHALL BE PLUS OR MINUS 1 PERCENT FULL SCALE. PROVIDE PRESSURE GAUGE COCKS BETWEEN PRESSURE
GAUGES AND GAUGE TEES, CONSTRUCTED OF BRASS WITH 1/4" FEMALE NPT ON EACH END, AND "T" HANDLE BRASS PLUG, WITH 1/4" BRASS
BUSHING SNUBBER WITH CORROSION RESISTANT POROUS METAL DISC, THROUGH WHICH PRESSURE FLUID IS FILTERED. SELECT DISC MATERIAL
FOR FLUID SERVED AND PRESSURE RA11NG.
12) SUPPORTS AND ANCHORS: HANGERS FOR PIPE UP TO AND INCLUDING 4" SHALL BE SWIVEL RING, SPLIT RING, CLAMP
WROUGHT PIPE ,
BAND, ADJUSTABLE WROUGHT CLEVIS TYPE OR TRAPEZE. HANGERS FOR PIPES ABOVE 4" SHALL BE STANDARD CLEVI S, ROLLER 0R TRAPEZE.
13) SADDLES AND SHIELDS: PROVIDE SADDLES AND SHIELDS UNDER PIPING HANGERS AND SUPPORTS, FACTORY —FABRICATED, FOR ALL
INSULATED PIPING. SIZE SADDLES AND SHIELDS FOR EXACT FIT TO MATE WITH PIPE INSULATION.
14) ROOF PENETRATIONS SHALL BE THROUGH 12"(MIN.) HIGH CURBS OR TALL CONE FLASHINGS.
8) ELECTRICAL REQUIREMENTS OF MECHANICAL WORK:
1)BASIC ELECTRICAL COMPONENTS INCLUDE, BUT ARE NOT LIMITED TO ALL REQUIRED STARTERS, DISCONNECT SWITCHES, CONTROL DEVICES, AND
MOTORS. IT INCLUDES MOTORS THAT ARE FACTORY —INSTALLED AS PART OF EQUIPMENT AND APPLIANCES AS WELL AS FIELD —INSTALLED
MOTORS.
2) STARTERS AND DISCONNECTS: WHERE AVAILABLE, PROVIDE FACTORY MOUNTED DISCONNECTS AND STARTERS, OR, WHEN FACTORY MOUNTED
STARTERS AND DISCONNECTS ARE NOT AVAILABLE PROVIDE COMBINATION STARTERS AND DISCONNECT SWITCHES, OR, WHERE COMBINATION
STARTERS AND DISCONNECT SWITCHES ARE NOT SUITABLE OR AVAILABLE, PROVIDE SEPARATE STARTERS AND DISCONNECTS FOR ALL HVAC
EQUIPMENT, AS REQUIRED FOR PROPER INSTALLATION AND OPERATION OF EQUIPMENT.
C) MECHANICAL IDENTIFICATION:
1)PROVIDE PIPE MARKERS, LINE MARKERS, AND EQUIPMENT MARKERS
2) PIPE MARKERS
(a) COMPLY WITH ANSI A13.1 FOR LETTERING SIZE, LENGTH OF COLOR FIELD, COLORS, AND INSTALLED VIEWING ANGLES.
— — N COLOR CODED PIPE MARKERS.
SEMI RIGID SNAP 0
(b) SNAP —ON TYPE: PROVIDE MANUFACTURER'S STANDARD PRE—PRINTED,
(c) PRESSURE —SENSITIVE TYPE: PROVIDE MANUFACTURER'S STANDARD PRE—PRINTED, PERMANENT ADHESIVE, COLOR —CODED,
PRESSURE —SENSITIVE VINYL PIPE MARKERS.
(d) INSTALL EVERY 40 FEET AND AT EACH CHANGE IN DIRECTION.
—
3) LINE MARKERS: UNDERGROUND TYPE: MANUFACTURER'S STANDARD PERMANENT, BRIGHT COLORED, CONTINUOUS PRI
NTED PLASTIC TYPE,
INTENDED FOR DIRECT —BURIAL SERVICE; NOT LESS THAN 6" WIDE X 4 MILS THICK. PROVIDE TAPE WITH PRINTING WHICH MOST ACCURATELY
INDICATES TYPE OF SERVICE OF BURIED PIPE.
4) PLASTIC EQUIPMENT MARKERS: PROVIDE MANUFACTURER'S STANDARD LAMINATED PLASTIC, COLOR CODED EQUIPMENT MARKERS.
5) LETTERING AND GRAPHICS: COORDINATE NAMES, ABBREVIATIONS AND OTHER DESIGNATIONS USED IN MECHANICAL IDENTIFICATION WORK,
WITH CORRESPONDING DESIGNATIONS SHOWN, SPECIFIED OR SCHEDULED. PROVIDE NUMBERS, LETTERING AND WORDING AS INDICATED OR, IF NOT
OTHERWISE INDICATED, AS RECOMMENDED BY MANUFACTURERS OR AS REQUIRED FOR PROPER IDENTIFICATION AND OPERATION/MAINTENANCE OF
MECHANICAL SYSTEMS AND EQUIPMENT.
D) VIBRATION CONTROL AND SEISMIC RESTRAINTS:
1)ALL VIBRATING EQUIPMENT NOT MOUNTED ON THE GROUND FLOOR SHALL BE MOUNTED ON OR SUSPENDED FROM VIBRATION ISOLATORS.
2) FIBERGLASS PADS AND SHAPES, NEOPRENE PADS, VIBRATION ISOLATION SPRINGS, PAD —TYPE ISOLATORS, PLATE —TYPE ISOLATORS,
DOUBLE —PLATE —TYPE ISOLATORS, THREADED DOUBLE— PLATE —TYPE ISOLATORS, ALL —DIRECTIONAL ANCHORS, NEOPRENE MOUNTINGS, FREE
STANDING SPRING ISOLATORS, HOUSED SPRING ISOLATORS, VERTICALLY —RESTRAINED SPRING ISOLATORS, EARTHQUAKE —RESISTANT SPRING
ISOLATORS, SEISMIC SNUBBERS, THRUST RESTRAINTS, EQUIPMENT RAILS, FABRICATED EQUIPMENT BASES, INERTIA BASE FRAMES, ROOF —CURB
ISOLATORS, ISOLATION HANGERS, RISER ISOLATORS, FLEXIBLE PIPE CONNECTORS SHALL BE PROVIDED AS REQUIRED AND AS SUITABLE FOR USE
AND SERVICE.
3) WHERE SEISMIC RESTRAINTS ARE REQUIRED, THE CONTRACTOR SHALL PROVIDE CALCULATIONS, DETAILS AND LOCATIONS THAT ARE STAMPED
BY A PROFESSIONAL ENGINEER.
E) EQUIPMENT SUPPORT:
1)ROOFTOP EQUIPMENT SHALL BE INSTALLED ON MANUFACTURED ROOF CURBS, CURB STRIPS, OR EQUIPMENT STANDS THAT ARE FLASHED AND
SEALED TO THE ROOF PER ARCHITECTURAL REQUIREMENTS.
2) INTERIOR FLOOR MOUNTED EQUIPMENT SHALL BE INSTALLED ON MANUFACTURED EQUIPMENT STANDS OR DIRECTLY ON FLOOR WITH 4"
HOUSEKEEPING PADS, AS APPROPRIATE. HOUSEKEEPING PADS SHALL EXTEND A MINIMUM OF 4-BEYOND EQUIPMENT FOOTPRINT.
F) DUCTWORK:
1)UNLESS OTHERWISE SPECIFIED, ALL RIGID DUCTWORK SHALL BE SHEET METAL MATERIALS AS SPECIFIED IN ASTM A700, WITH GALVANIZED SHEET
STEEL: LOCK —FORMING QUALITY, ASTM A527, COATING DESIGNATION G60; MILL PHOSPHATIZED FINISH.
(a) ALL DUCTWORK ASSOCIATED WITH POOLS, SHOWERS, DISHWASHERS OR ANY OTHER MOISTURE SOURCES SHALL BE ALUMINUM OR STAINLESS
STEEL. WHERE CONDENSATION CAN FORM INSIDE THE DUCT, JOINTS MUST BE SEALED OR WELDED WATERTIGHT.
SYSTEM PRESSURE.
1)ACTUATION REQUIREMENTS SHALL BE PER THE SEQUENCES OF OPERATION.
E) ROOM THERMOSTATS SHALL BE 7 DAY PROGRAMMABLE WITH A 57 DEADBAND
BETWEEN HEATING & COOLING AND SETBACK CAPABILITY (55°F HEATING & 85°F
COOLING).
1)USER ADJUSTABLE SETPOINTS SHALL BE PROVIDED UNLESS NOTED OTHERWISE ON
THE DRAWINGS.
III) EXECUTION
A) INSTALL SYSTEMS AND MATERIALS IN ACCORDANCE WITH MANUFACTURER
INSTRUCITONS AND ROUGHING -IN DRAWINGS AND DETAILS ON THE DRAWINGS. INSTALL
ELECTRICAL COMPONENTS AND USE ELECTRICAL PRODUCTS COMPLYING WITH
REQUIREMENTS OF APPLICABLE DIVISION 26 SECTIONS. COORDINATE THE INSTALLATION
IN ACCORDANCE WITH FINAL SHOP DRAWINGS, FIELD MEASUREMENTS, MANUFACTURER'S
DATA AND AS SPECIFIED HEREIN.
B) MOUNT CONTROLLERS AT CONVENIENT LOCATIONS AND HEIGHTS. COORDINATE WITH
ARCHITECT AND OTHER TRADES.
C) PROVIDE REMOTE CONTROL OF MANUAL RESET CONTROLLERS AS REQUIRED FOR
USER ACCESSIBILITY. COORDINATE WITH OWNER.
D) THE TERM "CONTROL WIRING -IS DEFINED TO INCLUDE PROVIDING OF WIRE, CONDUIT
AND MISCELLANEOUS MATERIALS AS REQUIRED FOR MOUNTING AND CONNECTING
ELECTRIC CONTROL DEVICES.
E) INSTALL COMPLETE CONTROL WIRING SYSTEM FOR CONTROL SYSTEMS. CONCEAL
WIRING, EXCEPT IN MECHANICAL ROOMS AND AREAS WHERE OTHER CONDUIT AND PIPING
ARE EXPOSED. PROVIDE MULTI -CONDUCTOR INSTRUMENT HARNESS (BUNDLE) IN PLACE
OF SINGLE CONDUCTORS WHERE A NUMBER OF CONDUCTORS CAN BE RUN ALONG A
COMMON PATH. FASTEN FLEXIBLE CONDUCTORS BRIDGING CABINETS AND DOORS NEATLY
ALONG HINGE SIDE AND PROTECT AGAINST ABRASION. TIE AND SUPPORT CONDUCTORS
NEATLY.
F) INSTALL CIRCUITS OVER 25-VOLT WITH COLOR -CODED THWN/THHN WIRE IN EMT OR
MC CABLE AS WHIPS TO EQUIPMENT CONNECTIONS. USE LIQUID-TITE CONDUIT IN
(b) ALL DUCTWORK WHICH WILL BE PAINTED SHALL BE GALVANIZED.
2) PRESSURE CLASS AND SEAL CLASS (PER SMACNA): 2"PRESSURE CLASS, SEAL CLASS A (ALL TRANSVERSE JOINTS, LONGITUDINAL SEAMS
AND DUCT WALL PENETRATIONS).
3) RECTANGULAR DUCT FABRICATION: FABRICATE RECTANGULAR DUCTS WITH GALVANIZED SHEET STEEL, IN ACCORDANCE WITH SMACNA "HVAC
DUCT CONSTRUCTION STANDARDS", TABLES 1-3 THROUGH 1-19, INCLUDING THEIR ASSOCIATED DETAILS. CONFORM TO THE REQUIREMENTS IN
THE REFERENCED STANDARD FOR METAL THICKNESS, REINFORCING TYPES AND INTERVALS, TIE ROD APPLICATIONS, AND JOINT TYPES AND
INTERVALS.
4) WHERE DUCT SUPPORTS ARE REQUIRED BETWEEN THE BUILDING STRUCTURAL FRAMING, SUITABLE INTERMEDIATE STEEL FRAMING SHALL BE
PROVIDED BY THE CONTRACTOR.
5) WATER BASED LIQUID RUBBER DUCT SEALANT OR FLANGED JOINT MASTICS SHALL BE ONE —PART, ACID— CURING, SILICONE ELASTOMERIC
JOINT SEALANTS, COMPLYING WITH ASTM C920, TYPE S. GRADE NS, CLASS 25, USE 0.
6) FLEXIBLE DUCT CONNECTORS SHALL BE INSTALLED AT POINTS AS CLOSE AS POSSIBLE TO AIR HANDLERS AND FANS. THE CONNECTOR
SHALL BE AT LEAST FOUR (4") INCHES WIDE AND FABRICATED SPECIFICALLY FOR USE AS A FLEXIBLE CONNECTOR. ALL CONNECTIONS SHALL BE
AIR TIGHT AND MADE SO THE CONNECTOR IS UNDAMAGED WHEN THE JOINT IS REMOVED.
7) FLEXIBLE DUCTS: LIMITED TO 6 FEET MAXIMUM STRAIGHT AND FULLY STRETCHED. DO NOT USE FLEX AS AN ELBOW.
(a) INTERNAL FABRIC SHALL BE ACOUSTICALLY RATED BLACK RESILIENT CALENDERED FILM WITH COATED STEEL WIRE HELIX, 2"FIBERGLASS
BLANKET (R-6.0), AND FIBERGLASS SCRIM REINFORCED ALUMINIZED POLYESTER FILM VAPOR BARRIER AS EXTERIOR FACING. LISTED AND
LABELED AS A CLASS 1 AIR DUCT PER UL STD 181. RATED FOR PRESSURE CLASS LISTED ABOVE. EQUIVALENT TO THERMAFLEX M—KE.
8) BELLMOUTH OR 45 DEGREE TAKEOFFS SHALL BE USED FOR DUCT TAKEOFFS TO MINIMIZE PRESSURE DROP.
9) MANUAL VOLUME DAMPERS SHALL BE INSTALLED AT ALL DUCT TAKEOFFS AND AS NEEDED ELSEWHERE TO PROPERLY BALANCE THE
SYSTEMS.
10) FIRE, SMOKE, COMBINATION FIRE/SMOKE DAMPERS AND CEILING RADIATION DAMPERS
(a) FIRE DAMPERS: UL 555 USTED TYPE "B" (OUT OF AIRSTREAM) 1-1/2 HOUR RATED FOR LESS THAN 3—HOUR FIRE —RESISTANCE RATED
ASSEMBLIES AND 3 HOUR RATED FOR 3—HOUR OR GREATER FIRE —RESISTANCE RATED ASSEMBLIES
(1) DYNAMIC FIRE DAMPERS SHALL BE USED IN SYSTEMS DESIGNED TO OPERATE WITH FANS ON DURING A FIRE.
(2) STATIC FIRE DAMPERS MAY BE USED IN SYSTEMS NOT OPERATIONAL DURING A FIRE.
(b) SMOKE DAMPERS: UL 555S LISTED.
(1) VOLTAGE DETERMINED BY FIRE ALARM CONTRACTOR.
(c) COMBINATION FIRE/SMOKE DAMPERS: UL 555 AND UL 555S LISTED.
(1) VOLTAGE DETERMINED BY FIRE ALARM CONTRACTOR.
(d) CEILING RADIATION DAMPERS: UL 555C LISTED.
(e) REFER TO BOTH MECHANICAL AND ARCHITECTURAL DRAWINGS FOR THE LOCATION OF RATED ASSEMBLIES.
G) HYDRONIC, AIR CONDITIONING CONDENSATE, AND REFRIGERANT PIPING:
1)HYDRONIC PIPING (HOT WATER AND CHILLED WATER) SHALL BE SCHEDULE 40 ASTM A53, GRADE B, TYPE E (ERW) STEEL OR ASTM B88, TYPE L
COPPER TUBE (COPPER THROUGH 2-ONLY) WITH THE FOLLOWING JOINING METHODS:
(a) THROUGH 2"SHALL USE CAST IRON CLASS 150 THREADED FITTINGS PER ASME B16.3 OR MEGA MEGAPRESS FOR STEEL PIPE OR COPPER
SOLDERED OR PRESS
ED FOR OR COPPER TUBE.
(b) 2-1/2"AND UP SHALL USE STEEL WELDED (ASME 316.9, STD WEIGHT), GROOVED OR FLANGED (ASME 816.5, CLASS 150, RAISED FACE)
FITTINGS.
(c) UPONOR ASTM F876/F877 SDR9 CROSSLINKED POLYETHYLENE (PEX—a) PIPING WITH ASTM F1960 COLD EXPANSION FITTINGS AND PEX
REINFORCING RINGS INSTALLED PER MANUFACTURER'S INSTRUCTIONS IS ALSO ALLOWED.
2) HYDRONIC VALVES:
(a) THROUGH 2" BRONZE BALL VALVES EQUAL TO APOLLO 70 SERIES.
(b) 2-1/2" AND UP DUCTILE IRON LUG STYLE BUTTERFLY VALVE WITH LEVER EQUAL TO CENTERLINE 200 SERIES.
3) AIR CONDITIONING CONDENSATE PIPING SHALL BE SCHEDULE 40 PVC.
(a) ROOF TOP UNITS SHALL DRAIN CONDENSATE ONTO ROOF.
(b) INDOOR UNITS SHALL DRAIN CONDENSATE TO SANITARY OR STORM VIA INDIRECT CONNECTION.
H) REFRIGERATION PIPING SYSTEMS:
1)COPPER TUBE AND FITTINGS:
(a) DRAWN —TEMPER OR ANNEALED COPPER TUBE: ASTM B280, TYPE ACR.
(b) WROUGHT —COPPER FITTINGS: ASME B16.22.
(c) BRAZING FILLER METALS: AWS A5.8, CLASSIFICATION BAG-1 (SILVER)
2) PREINSULATED COPPER ROLLS, SIMILAR TO PDM GELCOPPER ARE ACCEPTABLE.
3) PROVIDE AND INSTALL ALL REFRIGERANT PIPING SPECIALTIES REQUIRED AND RECOMMENDED BY THE REFRIGERATION EQUIPMENT
MANUFACTURER.
I) CONDENSING BOILER VENT AND INTAKE:
1)VENT PIPING SHALL BE POLYPROPYLENE (SIMILAR TO CENTROTHERM INNOFLUE) OR AL29-4C SPECIAL GAS VENT (SIMILAR TO DURAVENT
FASNSEAQ AND SHALL BE A CERTIFIED UL-1738 SYSTEM.
(a) PVC OR CPVC IS NOT ALLOWED FOR VENT PIPING.
2) INTAKE PIPING SHALL BE PVC, CPVC, POLYPROPYLENE OR A1_29-4C.
3) SIZING, LENGTH, SUPPORT, PITCH AND TERMINATION SHALL BE PER BOILER & VENT PIPE MANUFACTURERS' INSTALLATION INSTRUCTIONS.
J)INSULATION:
1)ALL INSULATION SHALL BE UL APPROVED FOR A FLAME SPREAD RATING OF NOT OVER 25 AND A SMOKE DEVELOPED RATING OF NOT OVER 50.
2) ALL INSULATION SHALL CONFORM TO THE REQUIREMENTS OF IECC 2018
3) HYDRONIC PIPING: ALL HYDRONIC PIPING SERVING AS PART OF THE HEATING OR COOLING SYSTEM SHALL BE THERMALLY INSULATED IN
ACCORDANCE WITH THE THICKNESSES LISTED BELOW, BASED ON THE PIPE INSULATION HAVING A CONDUCTIVITY NOT EXCEEDING 0.27 BTU PER
INCH/H"FT2''F.
(a) COPPER AND STEEL PIPING SHALL BE INSULATED WITH FIBERGLASS HAVING ASJ AND PVC FITTING COVERS WITH FIBERGLASS INSERTS,
SIMILAR TO JOHN MANSVILLE MICRO—LOK.
(b) PEX PIPING SHALL BE INSULATED WITH FLEXIBLE ELASTOMERIC THERMAL INSULATION: CLOSED —CELL, SPONGE— OR EXPANDED —RUBBER
MATERIALS COMPLIANT WITH ASTM C 534, TYPE I FOR TUBULAR MATERIALS. JOINTS SHALL BE MITERED AND GLUED WITH ADHESIVE
RECOMMENDED BY MANUFACTURER. PROVIDE UV PROTECTIVE COATING ON ELASTOMERIC INSULATION THAT IS EXPOSED TO SUNLIGHT.
(c) NOTE THAT ALL PIPES CONTAINING FLUIDS AT TEMPERATURES LESS THAN LOCAL DEWPOINT MUST BE INSULATED FOR CONDENSATION
CONTROL.
(d) HOT WATER PIPE INSULATION THICKNESS (105-14OF OPERATING TEMPERATURE)
(1) 1'THICK INSULATION FOR 1-1/4"& SMALLER PIPE SIZES.
(2) 1-1/2-THICK INSULATION FOR 1-1/2'& LARGER PIPE SIZES.
(e) HOT WATER PIPE INSULATION THICKNESS (141-20OF OPERATING TEMPERATURE)
(1) 1-1/2-THICK INSULATION FOR 1-1/4"& SMALLER PIPE SIZES.
(2) 2-THICK INSULATION FOR 1-1/2"& LARGER PIPE SIZES.
(f) ADDITIONAL PIPE INSULATION REQUIREMENTS MAY BE SHOWN ON DRAWINGS.
4) REFRIGERANT PIPING INSULATION SHALL BE FLEXIBLE ELASTOMERIC THERMAL INSULATION: CLOSED —CELL, SPONGE— OR EXPANDED —RUBBER
MATERIALS. COMPLY WITH ASTM C 534, TYPE I FOR TUBULAR MATERIALS AND TYPE II FOR SHEET MATERIALS.
(a) ADHESIVE: AS RECOMMENDED BY INSULATION MATERIAL MANUFACTURER.
EXTERIOR OR HAZARDOUS LOCATIONS.
G) INSTALL CIRCUITS UNDER 25-VOLT WITH COLOR -CODED NO. 18 WIRE WITH
INSULATION ON EACH CONDUCTOR AND PLASTIC SHEATH OVER ALL. PROVIDE PLENUM
RATED CABLE IN PLENUM CEILINGS.
H) INSTALL LOW VOLTAGE CIRCUITS WHICH ARE LOCATED IN CONCRETE SLABS OR IN
MASONRY WALLS IN CONDUIT.
1) WHERE CONTROL WIRING MUST BE SURFACE MOUNTED IN OCCUPIED ROOMS AND IT IS
NOT POSSIBLE TO CONCEAL WIRING, RUN WIRING IN WIREMOLD RACEWAY (COLOR BY
ARCHITECT).
J)NUMBER-CODE OR COLOR -CODE CONDUCTORS APPROPRIATELY FOR IDENTIFICATION AND
SERVICING OF THE CONTROL SYSTEM.
K) DEMONSTRATE CONTROL SYSTEM TO AND TRAIN OWNER'S PERSONNEL IN OPERATION
AND MAINTENANCE OF CONTROL SYSTEM.
IV) SEQUENCES OF OPERATION
A) BOILERS (B) AND ASSOCIATED CIRCULATOR PUMPS (CP)
1)THE MAIN LOOP SUPPLY WATER TEMPERATURE SHALL BE MAINTAINED AT 1007.
(a) RADIANT HEATING SYSTEM SHALL ONLY OPERATE WHEN OUTSIDE AIR
TEMPERATURE FALLS BELOW 40 DEGREES F (ADJUSTABLE)
(b) WHENEVER A BOILER IS CALLED TO OPERATE, IT'S ASSOCIATED INJECTION
PUMP SHALL OPERATE.
(c) THE MAIN CIRCULATOR PUMP SHALL OPERATE WHENVER ONE OR MORE ZONES
ARE CALLING FOR HEATING.
(1) MAIN CIRCULATOR IS A SELF -SENSING PUMP THAT SHALL OPERATE TO
MAINTAIN CONSTANT PRESSURE IN THE LOOP.
B) VARIABLE REFRIGERANT FLOW UNITS (VRF)
1)INDOOR VRF UNIT FAN SHALL OPERATE ON A CALL FOR HEATING OR COOLING ONLY
2) THE ASSOCIATED 7-DAY PROGRAMMABLE THERMOSTAT SHALL INCLUDE
OCCUPIED AND UNOCCUPIED HEATING AND COOLING SETPOINTS WITH A DEADBAND
(b) PROVIDE UV PROTECTIVE COATING ON ELASTOMERIC INSULATION THAT IS EXPOSED TO SUNLIGHT.
(c) REFRIGERANT PIPE INSULATION THICKNESS (<40F OPERATING TEMPERATURE)
(1) �/h"THICK INSULATION FOR 1"& SMALLER PIPE SIZES.
(2) 1-THICK INSULATION FOR 1"& LARGER PIPE SIZES.
5) DUCTWORK:
(a) INSIDE THE BUILDING THERMAL ENVELOPE — SUPPLY AND OUTDOOR AIR DUCTS AND PLENUMS (INCLUDING THOSE INSTALLED IN RETURN AIR
PLENUMS) SHALL BE INSULATED WITH FORMALDEHYDE —FREE FIBERGLASS WITH FSK JACKET WITH AN INSTALLED MINIMUM R-6 VALUE, SIMILAR
TO JOHNS MANVILLE MICROLITE FSK TYPE 75, 2-1/5-THICK. INTERNALLY LINED SUPPLY AIR DUCT WITH AN R-6 VALUE DOES NOT REQUIRE
EXTERNAL INSULATION.
(1) RETURN AIR DUCTS ARE NOT INSULATED.
(2) EXHAUST AIR DUCTS AND PLENUMS SHALL BE INSULATED WITH R-6 TO TEN (10) FEET BACK FROM BUILDING EXTERIOR.
(3) EXHAUST AIR DUCTS BEYOND TEN (10) FEET FROM BUILDING EXTERIOR ARE NOT INSULATED.
(b) OUTSIDE THE BUILDING THERMAL ENVELOPE — SUPPLY, OUTSIDE, RETURN AND EXHAUST AIR DUCTS AND PLENUMS SHALL BE INSULATED
WITH FORMALDEHYDE —FREE FIBERGLASS WITH FSK JACKET WITH AN INSTALLED MINIMUM R-12 VALUE, SIMILAR TO JOHNS MANVILLE MICROLITE
FSK TYPE 75,4-2/5"THICK.
(c) ADDITIONAL DUCTWORK INSULATION REQUIREMENTS MAY BE SHOWN ON THE DRAWINGS.
K) MECHANICAL EQUIPMENT:
1)REFER TO EQUIPMENT SCHEDULES FOR MECHANICAL EQUIPMENT REQUIREMENTS. ALTERNATE MANUFACTURERS PROPOSED MUST BE EQUAL IN
PERFORMANCE AND QUALITY FOR CONSIDERATION (AS DETERMINED BY ENGINEER).
III) EXECUTION
A) INSTALLATION:
1)WORKMANSHIP SHALL BE FIRST QUALITY. APPEARANCE OF WORK SHALL BE OF EQUAL IMPORTANCE TO SYSTEM OPERATION. LACK OF QUALITY
WORKMANSHIP SHALL BE REASON FOR REJECTION OF SYSTEM IN PART OR IN WHOLE. BEST TRADE PRACTICES SHALL PREVAIL.
2) EQUIPMENT SHALL BE INSTALLED WITH CLEARANCE AND ACCESS DOORS FOR PROPER MAINTENANCE. FILTERS, COILS, DRIVES, VALVES, AND
CONTROLS SHALL BE ACCESSIBLE FOR SERVICING AND/OR REPLACEMENT. COORDINATE THE FINAL LOCATION OF CONCEALED EQUIPMENT AND
DEVICES REQUIRING ACCESS WITH FINAL LOCATION OF REQUIRED ACCESS PANELS AND DOORS.
3) THE CONTRACTOR SHALL PROVIDE ALL SUPERVISION, LABOR, EQUIPMENT, MATERIAL, MACHINERY, PLANS, RIGGING, AND ANY AND ALL OTHER
ITEMS NECESSARY TO COMPLETE THE MECHANICAL SYSTEM INSTALLATION. SMALL DETAILS NOT USUALLY INDICATED ON THE DRAWINGS OR
SPECIFIED, BUT WHICH ARE NECESSARY FOR THE PROPER INSTALLATION AND OPERATION OF THE MECHANICAL SYSTEM SHALL BE INCLUDED IN
THE WORK AND IN THE CONTRACTOR'S ESTIMATE THE SAME AS IF HEREIN SPECIFIED OR SHOWN ON THE DRAWINGS.
4) THE CONTRACTOR SHALL INSTALL EQUIPMENT IN ACCORDANCE WITH MANUFACTURER'S RECOMMENDATIONS. THIS INCLUDES CHECKING THE
MANUFACTURER'S INSTRUCTIONS TO DETERMINE WHAT TYPE OF GLYCOL SYSTEM MAY BE USED WITH EQUIPMENT SO AS NOT TO VOID THE
WARRANTY OR IMPAIR THE OPERATION OF THE EQUIPMENT. WHERE THE DRAWINGS AND SPECIFICATIONS CONFLICT WITH THE MANUFACTURER'S
RECOMMENDATIONS, IT SHALL BE THE CONTRACTOR'S RESPONSIBILITY TO BRING THIS TO THE ATTENTION OF THE ENGINEER.
5) UPON COMPLETION OF WORK, THE CONTRACTOR SHALL CLEAN, OIL AND GREASE (UNLESS FACTORY LUBRICATED) ALL FANS, PUMPS,
MOTORS, ALL OTHER RUNNING EQUIPMENT AND APPARATUS AND MAKE CERTAIN THAT ALL SUCH APPARATUS AND MECHANISMS ARE IN PROPER
WORKING ORDER AND MADE READY FOR TESTING.
B PIPING SYSTEMS:
1)PROVIDE AND INSTALL ISOLATION VALVES, UNIONS/FLANGES, MANUAL AIR VENTS, AND DRAIN VALVES AT ALL PIECES OF EQUIPMENT.
2) PITCH WATER PIPING UP IN THE DIRECTION OF FLOW, 1 INCH PER 40 FEET MINIMUM. PROVIDE AN AIR VENT AT ALL HIGH POINTS AND A
DRAIN VALVE AT ALL LOW POINTS.
3) CUT ALL HOLES OF SUFFICIENT SIZE AND HANG ALL PIPE SO THAT THERE WILL BE NO COPPER OR STEEL TO METAL CONTACT AND
RESULTANT NOISE DURING PIPE EXPANSION AND CONTRACTION. PROVIDE EXPANSION LOOPS WITH ROLLERS, GUIDES AND ANCHORS WHERE
STRAIGHT RUNS OF PIPE EXCEED 100 FEET.
4) INSTALL VALVES WITH STEMS UPRIGHT OR HORIZONTAL, NOT INVERTED.
C) HVAC USE DURING CONSTRUCTION:
1)THE HVAC EQUIPMENT MAY NOT BE USED FOR TEMPORARY HEAT DURING CONSTRUCTION. THE HVAC EQUIPMENT SHALL NOT BE STARTED AND
TESTED UNTIL ALL CONSTRUCTION ACTIVITY THAT HAS THE POTENTIAL OF CREATING AIR BORNE PARTICULATES THAT COULD BE DRAWN INTO
THE HVAC EQUIPMENT AND DUCTWORK SYSTEMS HAS BEEN COMPLETED. IN ADDITION, ALL DUCTWORK OPENINGS SHALL BE SEALED UNTIL THE
TIME WHEN THE HVAC EQUIPMENT IS TO BE STARTED AND TESTED.
2) PORTABLE UNIT HEATERS AND EXHAUST FANS SHALL BE USED FOR HEATING AND VENTILATION DURING CONSTRUCTION AS REQUIRED.
3) REPLACE AIR FILTERS IF UNITS WERE OPERATED DURING CONSTRUCTION. CLEAN DUCTS, BLOWERS, AND COILS IF UNITS WERE OPERATED
WITHOUT FILTERS DURING CONSTRUCTION.
D) FLUSH AND WATER TREATMENT:
1)BEFORE SYSTEM OPERATION, CLEAN AND FLUSH ALL PIPING SYSTEMS TO REMOVE GREASE, OIL, SCALE, ETC. OPERATE SYSTEM FOR A MINIMUM
OF 24 HOURS WITH STARTUP STRAINERS TO REMOVE DEBRIS, THEN REMOVE AND DISPOSE OF STARTUP STRAINER.
2) PROVIDE CHEMICAL WATER TREATMENT CHEMICALS TO PROHIBIT CORROSION FOR WATER SYSTEMS.
E) TESTING AND BALANCING:
1)EQUIPMENT SHALL BE STARTED, TESTED, ADJUSTED AND PLACED IN SATISFACTORY OPERATING CONDITION BY THE CONTRACTOR.
2) THE WATER AND AIR SYSTEMS SHALL BE BALANCED FROM —10% TO + 10% OF THE GPM AND CFM VALUES SHOWN ON THE APPROVED
HVAC PLANS. BALANCING SHALL BE DONE IN ACCORDANCE WITH STANDARDS ESTABLISHED BY THE AABC OR NEBB USING REPORT SHEETS
DEVELOPED BY THE AABC OR NEBB. SUBMIT REPORTS TO THE ENGINEER.
3) THE TEST AND BALANCE CO
NTRACTOR SHA
LL NOTIFY THE CONTRACTOR OF ANY IDENTIFIED
DEFICIENCIES OR
ISSUES.
4) MARK AND LOCK DAMPERS AT THEIR PROPER POSITION.
F) HVAC DUCT LEAKAGE TESTING:
1)HVAC DUCT LEAKAGE SHALL BE TESTED AND SHOWN TO HAVE LESS THAN FIVE PERCENT LEAKAGE AT DESIGN AIR FLOW RATES. DUCTWORK
MAY BE TESTED AT FINISHED STAGE OR DURING ROUGH —IN STAGE.
END OF DIVISION 23
OF 57.
(a) OCCUPIED SETPOINTS SHALL BE 707 HEATING AND 75`F COOLING.
(b) UNOCCUPIED SETPOINTS SHALL BE 55°F HEATING AND 85"F COOLING.
3) THE OUTDOOR VRF UNIT SHALL OPERATE AS NEEDED TO SATISFY THE INDOOR
VRF UNITS.
4) IF THE UL 508 WATER -LEVEL DETECTION DEVICE IN THE DRAIN PAN IS
TRIGGERRED, MECHANICAL COOLING SHALL BE DEACTIVATED.
C) ENERGY RECOVERY VENTILATORS (ERV)
1)THE ERV SHALL RUN CONTINOUSLY DURING OCCUPIED HOURS
END OF DIVISION 25
LEGEND
OF PIPING SYMBOLS
SYMBOL
DESCRIPTION
SYMBOL
DESCRIPTION
—___o
PIPE ELBOW UP
-H&-
BALL VALVE
PIPE ELBOW DOWN
--4[---
BUTTERFLY VALVE
--o_-
PIPE TEE UP
-__>�
GATE VALVE
PIPE TEE DOWN
�
OS&Y GATE VALVE
PIPE CROSS OVER
►T..
CHECK VALVE
—I I i
UNION
HAP
BACK FLOW PREVENTER
--
FLEXIBLE PIPE CONNECTOR
I `I
TRIPLE -DUTY VALVE
]
END CAP
T�::Q,
TRIPLE -DUTY VALVE WITH
MEASUREMENT PORTS
T
PETE'S PLUG
A
2-WAY MOTORIZED VALVE
�ll
HOSE THREAD DRAIN VALVE
WITH CAP AND CHAIN
M
3-WAY MOTORIZED VALVE
CIRCUIT SETTER
'<'
TEMPERING VALVE
"
STRAINER
&
PRESSURE REDUCING VALVE
IV
STRAINER WITH BLOWDOWN
4�
TEMPERATURE &PRESSURE
RELIEF VALVE
®
CIRCULATOR PUMP
IM D'Q
w
DIFFERENTIAL PRESSURE
BYPASS VALVE
Mv
mI
MANUAL AIR VENT
SOLENOID VALVE
AV
4
AUTOMATIC AIR VENT
�
GAS COCK
AS
AIR SCOOP
so
DIRECTION OF FLOW
AS
AIR SCOOP WITH VENT
) ,
DIRECTION OF PITCH
CONNECT TO EXISTING
AS
AIR SEPARATOR WITH VENT
PIPE CONTINUES
$
THERMOMETER
AR
FEET
FIN TUBE IDENTIFICATION TAG
—
PRESSURE GAUGE WITH
SHUTOFF & PIGTAIL
VACUUM BREAKER
C-ii'r`Fi� OI
FIN TUBE RADIATION WITH COVER
-\_/p\_/-
ELECTRIC HEAT TRACING
LEGEND
OF DUCT SYMBOLS
SYMBOL
DESCRIPTION
SYMBOL
DESCRIPTION
I—
MANUAL BALANCING DAMPER
LLL��LL���
RECTANGULAR RETURN OR
EXHAUST DUCT UP
FD II
FIRE DAMPER
�
DDUCTD RETURN OR EXHAUST
SDI
SMOKE DAMPER
`� I
\I
RECTANGULAR RETURN OR
EXHAUST DUCT DOWN
SFD �
SMOKE &FIRE DAMPER
�
�\�I
ROUND RETURN OR EXHAUST
DUCT DOWN
1 —
CABLE OPERATED DAMPER
RECTANGULAR SUPPLY DUCT UP
BACK DRAFT DAMPER
`�
ROUND SUPPLY DUCT UP
❑M -H
MOTORIZED DAMPER
` � I
.". I
RECTANGULAR SUPPLY DUCT
DOWN
-
SUPPLY AIRFLOW
;1�I
ROUND SUPPLY DUCT DOWN
-q___�►
RETURN / EXHAUST AIRFLOW
MARK
SIZE
CFM
REGISTER, GRILLE AND
DIFFUSER IDENTIFICATION TAG
CONNECT TO EXISTING
LEGEND
OF CONTROL SYMBOLS
SYMBOL
DESCRIPTION
SYMBOL
DESCRIPTION
O
THERMOSTAT
OH
HUMIDISTAT
TS
TEMPERATURE SENSOR
OP
PRESSURE SENSOR
CO
CARBON MONOXIDE SENSOR
SD
SMOKE DETECTOR
®
CARBON DIOXIDE SENSOR
0
INDICATOR LAMP
MECHANICAL
ABBREVIATIONS
ABOVE FINISHED
EAT
ENTERING AIR
HRV
HEAT RECOVERY
MPT
MALE PIPE
AFF
FLOOR
TEMPERATURE
VENTILATOR
THREAD
AMP
AMPACITY
EC
ELECTRICAL
CONTRACTOR
HW
HOT WATER
NA
NOT APPLICABLE
AIR PRESSURE
EER
ENERGY
HWUH
HOT WATER UNIT
NC
NORMALLY
APD
DROP
EFFICIENCY RATIO
HEATER
CLOSED
AUTOMATIC TEMP.
EFT
ENTERING FLUID
HWCUH
HOT WATER
NO
NORMALLY OPEN
ATC
CONTROL
TEMPERATURE
CABINET HEATER
BRITISH THERMAL
ERV
ENERGY RECOVER
HWR
HOT WATER
OA
OUTSIDE AIR
BTU/H
UNITS/HOUR
VENTILATOR
RETURN
EXTERNAL STATIC
HWS
HOT WATER
OD
OUTSIDE
CAP
CAPACITY
ESP
PRESSURE
SUPPLY
DIAMETER
CH
CHILLED
ET
EXPANSION TANK
HX
HEAT EXCHANGER
PD
PRESSURE DROP
CHW
CHILLED WATER
EWT
ENTERING WATER
TEMPERATURE
ID
INSIDE DIAMETER
PG
PROPYLENE
GLYCOL
C/HWR
CHILLED & HOT
F
FAHRENHEIT
IN
INCHES
PSI
POUNDS PER
SQUARE INCH
WATER RETURN
C HWS
/
CHILLED & HOT
FA
FRESH AIR
KW
KILOWATTS
PH/0
PHASE
WATER SUPPLY
CHILLED WATER
FPD
FLUID PRESSURE
LAT
LEAVING AIR
R
RETURN
CHWR
RETURN
DROP
TEMPERATURE
CHWS
CHILLED WATER
FPM
FEET PER MINUTE
LB/#
POUNDS
RA
RETURN AIR
SUPPLY
COND
CONDENSATE
FPT
FEMALE PIPE
THREAD
LFT
LEAVING FLUID
TEMPERATURE
RTU
ROOFTOP UNIT
CONN
CONNECT OR
FT HD
FEET HEAD
LPS
LOW PRESSURE
STEAM
SF
SQUARE FEET
CONNECTION
CONY
CONVECTOR
FTR
FIN TUBE
RADIATION
LWT
LEAVING WATER
TEMPERATURE
SQ IN
SQUARE INCHES
CID
CIRCULATOR
CIRCULATOR
Fyy
FRESH WATER
M
MINUTES
S
SUPPLY
CW
COLD WATER
GC
GENERAL
CONTRACTOR
MAX
MAXIMUM
SA
SUPPLY AIR
CONDENSER
GHWS
GLYCOL & WATER
MBH
THOUSANDS OF
TEMP
TEMPERATURE
CWR
WATER RETURN
SUPPLY
BTU/H
CONDENSER
GHWR
GLYCOL & WATER
MC
MECHANICAL
V
VOLTS
CWS
WATER SUPPLY
RETURN
CONTRACTOR
pg
DRY BULB
GPM
GALLONS PER
MINUTE
MCA
MINIMUM CIRCUIT
AMPACITY
W
WATTS
DN
DOWN
HP
HORSEPOWER
MIN
MINUTE OR
MINIMUM
WPD
WATER PRESSURE
DROP
DIRECT
HPS
HIGH PRESSURE
MOCP
MAX OVERCURREN1
WB
WET BULB
DX
EXPANSION
STEAM
PROTECTION
EA
r
EXHAUST AIR
HR
HOUR
MPS
MEDIUM
PRESSURE STEAM
WC
WATER COLUMN
-
11
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ARCHITECTURE
LAND PLANNING
INTERIOR DESIGN
3D VISUALIZATION
833 TURNPIKE ROAD
P.O. BOX 104
NEW IPSWICH
NEW HAMPSHIRE 03071
*."', %, OF, k, 0
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Firs'DREW W.
8ENAULT -4
fQ MECHANICAL
NO.50816
e(`
DESIGN DAY
Mechanicais Inc
THE PROJECT MANAGER FOR THIS PROJECT IS NOTED
BELOW: PLEASE REFER ALL QUESTIONS, SUBMITTALS
AND CORRESPONDENCE TO THE PROJECT MANAGER.
HVAC PROJECT MANAC_R:
DAM. C. MAGNUSON
EMAIL: DAVEMODESIGNDAYMECH.COM
PHONE: (603) 463-1086
ADDRESS: 65 OLD CENTER RD, DEERFIELD, NH 03037
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