11-50-018mo
MECHANICAL NOTES:
PART -1 - GENERAL
1.1 GENERAL: THE GENERAL AND SPECIAL CONDITIONS AND REQUIREMENTS OF THE CONTRACT AND
SPECIFICATIONS AS WELL AS PLANS AND SPECIFICATIONS OF OTHER DISCIPLINES AND TRADES SHALL
APPLY AND BE PART OF THE WORK HEREBY SPECIFIED. THESE SPECIFICATIONS AND THE
ACCOMPANYING PLANS ARE INTENDED TO PROVIDE FOR THE COMPLETE FURNISHING AND INSTALLATION
OF THE MECHANICAL SYSTEMS. "PROVIDE" MEANS "FURNISH AND INSTALL".
A.2 COMPLIANCE: WORKMANSHIP, MATERIALS AND INSTALLATION SHALL BE IN STRICT ACCORDANCE WITH
THE LATEST EDITION OF NFPA, ASHRAE. ASME, ASPS. ASTM, OSHA, HRS, HEALTH
AGENCIES, AND OTHER APPLICABLE NATIONAL, STATE, AND LOCAL CODES AND PERTAINING REGULATIONS
ESSTABUSHED BY RULING AUTHORITIES HAVING JURISDICTION. CONTRACTOR SHALL ALSO MEET
REQUIREMENTS OF OTHER RECOGNIZED STANDARDS WHERE SUCH REQUIREMENTS ARE MORE STRINGENT
THAN THOSE CITED ABOVE.
:P 1.3 WORKMANSHIP: ALL WORK SHALL BE PERFORMED BY CONTRACTORS LICENSED IN THEIR RESPECTIVE
DISCIPLINES. WORK SHALL BE DONE IN A FIRST CLASS MANNER, FULLY OPERATIVE, AND TO THE
ACCEPTANCE OF THE ARCHITECT /ENGINEER. CONTRACTOR SHALL PROVIDE FOR ALL NECESSARY LABOR
AND MATERIALS REQUIRED FOR COMPLETION OF THE WORK INCLUDING BUT NOT LIMITED TO
CONNECTIONS TO RELATED WORK SUCH AS CONNECTION TO EXISTING SYSTEMS, EXCAVATIONS AND
BACKFIWNG, DEWATERING OF EXCAVATED TRENCHES.
1.4 MATERIALS: CONTRACTOR SHALL PROVIDE ALL NEW MATERIALS OF AMERICAN MANUFACTURE. BEARING
THE UNDERWRITER'S LABORATORY (UL) LABEL AS APPLICABLE. MATERIALS SHALL BE ACCEPTABLE AND
ABOVE STANDARD QUALITY NORMALLY USED FOR THE PURPOSE AS CALLED FOR ON PLANS.
SUPPLEMENTAL MATERIALS, PRODUCTS AND COMPONENTS NECESSARY TO COMPLY WITH THE INTENT OF
THE CONTRACT DRAWINGS AND /OR SPECIFICATIONS, BUT NOT NOTED OR SPECIFIED ON THESE SECTIONS,
SHALL BE PROVIDED BY CONTRACTOR AS REQUIRED FOR COMPLETION OF THE WORK AT NO ADDITIONAL
COST TO THE OWNER. CONTRACTOR SHALL BE RESPONSIBLE FOR PROVISIONS AND COORDINATION OF
DELIVERY OF MATERIALS. EQUIPMENT MARRED DURING SHIPMENT OR INSTALLATION SHALL BE TOUCHED
UP AND REFINISHED TO FACTORY FINISH, REPLACED WHERE NOT ACCEPTABLE.
1.5 PERMITS & INSURANCE: CONTRACTOR SHALL SECURE AND PAY FOR ALL PERMITS, FEES, TAXES,
INSPECTIONS, TESTS, FINES AND OTHER ITEMS AS REQUIRED FOR THE INSTALLATION OF COMPLETE
MECHANICAL SYSTEMS AS OUTLINED HEREIN AND SHOWN ON PLANS. PROVIDE ALL REQUIRED
INSURANCE FOR PROTECTION AGAINST PUBLIC LIABILITY AND PROPERTY DAMAGE FOR THE DURATION OF
THE WORK.
1.6 EXISTING CONDITIONS: BEFORE BIDDING CONTRACTOR SHALL VISIT THE JOB SITE AND ASCERTAIN ALL
EXISTING CONDITIONS WHICH WILL AFFECT HIS WORK. FAILURE TO DO SO WILL NOT BE ACCEPTED AS
A REASON FOR REQUESTING EXTRA PAY WHERE THE EXISTING CONDITIONS RESULT IN EXTRA MATERIAL
OR LABOR. ANY EXISTING CONDITION FOUND BY THE CONTRACTOR WHICH WILL ADVERSELY AFFECT THE
WORK SHALL IMMEDIATELY BE BROUGHT TO THE ATTENTION OF THE ARCHITECT/ENGINEER. CORRECTION
OF ANY DEFECTS SHALL BE COMPLETED WITHOUT ADDITIONAL CHARGE AND SHALL INCLUDE
REPLACEMENTS OR REPAIR OF ANY OTHER PHASE OF THE INSTALLATION WHICH MAY HAVE BEEN
DAMAGED THEREBY.
1.7 UTILITY COMPANIES: BEFORE SUBMITTING BID CONTRACTOR SHALL CHECK WITH WATER, SEWER, GAS,
ELECTRICAL, TELEPHONE, CABLE TV AND OTHER UTILITY COMPANIES SUPPLYING SERVICE TO THIS
INSTALLATION TO DETERMINE INSTALLATION STANDARDS AND EQUIPMENT REQUIREMENTS AND COSTS TO
BE INCLUDED IN THE BID. EXCEPT WHERE UTILITY REQUIREMENTS CHANGE AFTER SUBMITTAL, NO
EXTRA PAYMENT WILL BE MADE TO THE CONTRACTOR FOR SUCH ITEMS.
1.8 PLANS: DRAWINGS ARE GENERALLY DIAGRAMMATIC, INTENDED TO SHOW APPROXIMATE EQUIPMENT
LOCATIONS AND ARRANGEMENTS, NOT TO SHOW EVERY MINOR DETAIL PLANS SHALL NOT BE SCALED
TO DETERMINE EXACT LOCATION AND DIMENSIONS.
1.9 INTERFERENCE: CONTRACTOR SHALL COORDINATE HIS WORK WITH THE WORK OF OTHER TRADES SO THAT
INTERFERENCES WITH EXISTING CONDITIONS, CONDUITS, PIPING, EQUIPMENT, ARCHITECTURAL,
STRUCTURAL MEMBERS WILL BE AVOIDED.
1.10SHOP DRAWINGS: PRIOR TO PLACING AN ORDER AND BEFORE INSTALLATION, SUBMIT FOR REVIEW
PROPERLY IDENTIFIED AND BOUND SHOP DRAWINGS AND MANUFACTURER'S LITERATURE GIVING
SPECIFICATIONS, DETAILS, COMPLIANCE. UL APPROVAL, MATERIALS. FINISHES, ACCESSORIES AND
INSTALLATION DIRECTIONS WHERE REQUIRED OF THE EQUIPMENT SPECIFIED. FACTORY CERTIFIED PRINTS
SHALL BE FURNISHED FOR ALL MAJOR ITEMS OF EQUIPMENT AND SPECIFIED. SUBMISSION OF
EQUIPMENT FOR APPROVAL SHALL BE MADE COMPLETE AND ALL AT THE SAME TIME.
1.11SUBSTITUTIONS: PRODUCTS AND MATERIALS CALLED OUT BY TRADE NAME AND /OR CATALOG NUMBERS
ESTABLISH A STANDARD OF QUAUTY, APPEARANCE, PERFORMANCE AND DIMENSION. CONTRACTOR SHALL
BASE HIS PROPOSAL ON THOSE ITEMS AS THEY SHALL BE CONSIDERED AS A STANDARD BASIS OF
BIDDING. REQUESTS FOR SUBSTITUTIONS SHALL BE SUBMITTED IN WRITING TO THE
ARCHITECT/ENGINEER. DEMONSTRATING THAT PRODUCT IS OF COMPARABLE AND BASIC DESIGN.
CONSTRUCTION STANDARDS AND WARRANTIES, DIMENSIONS TO FIT WITHOUT CHANGE, AND DOES NOT
CAUSE EXTRA WORK FOR OTHER TRADES. CONTRACTOR SHALL BE RESPONSIBLE FOR PROVING EQUALITY
OF SUBSTITUTIONS; ARCHITECT/ENGINEER WILL, UNDER NO CIRCUMSTANCES, BE REQUIRED TO PROVE
SUCH ITEM IS OR IS NOT OF EQUAL QUALITY TO THE SPECIFIED ITEM. ARCHITECT/ENGINEER EXPENSES
INCURRED DUE TO CONTRACTOR'S REQUESTED REVISIONS OR SUBSTITUTIONS SHALL BE PAID BY
CONTRACTOR.
1.12GUARANTEES: AFTER THE SYSTEM IS INSTALLED, THE CONTRACTOR SHALL CONDUCT AN OPERATIVE TEST
FOR APPROVAL AND ACCEPTANCE BY THE ARCHITECT /OWNER. ENTIRE MECHANICAL WORK. INCLUDING
PARTS AND LABOR, SHALL BE GUARANTEED FOR A PERIOD OF ONE (1) YEAR FROM DATE OF FINAL
WRITTEN ACCEPTANCE THEREOF AGAINST DEFECTIVE MATERIALS, CONSTRUCTION AND WORKMANSHIP.
WHERE APPLICABLE, LONGER GUARANTEES FOR CERTAIN COMPONENTS SHALL APPLY AS REQUIRED AND
NOT BE REDUCED IN ANY WAY. CORRECTION OF ANY DEFECTS SHALL BE COMPLETED WITHOUT
ADDITIONAL CHARGE TO THE OWNER AND SHALL INCLUDE REPLACEMENTS AND /OR REPAIR OF ANY OTHER
PHASE OF THE INSTALLATION WHICH MAY HAVE BEEN DAMAGED THEREBY.
1.13RECORD DRAWINGS: MAINTAIN A COMPLETE SET OF PRINTS FOR INDICATING ALL CHANGES. USE
COLORED PENS TO MARK CHANGES AT THE TIME OF EXECUTION AND DELIVER THE SET TO
ARCHITECT/ENGINEER UPON COMPLETION. CONTRACTOR SHALL STAMP "AS BUILT ON PRINTS AND
PLANS, DATE AND SIGN IN INK.
PART 2 - PRODUCTS
2.1 EQUIPMENT: CONTRACTOR SHALL PROVIDE FOR A COMPLETE HVAC SYSTEM AS SPECIFIED ON PLANS
INCLUDING BUT NOT LIMITED TO HVAC EQUIPMENT OF THE CAPACITIES SHOWN, DUCTWORK AND AIR
DISTRIBUTION, FLUID SYSTEMS, REFRIGERANT AND RELATED SYSTEM UNES, TEMPERATURE AND HUMIDITY
CONTROLS, FILTERS, MOTOR STARTERS, RELAYS, CONTACTORS AND ANY OTHER COMPONENTS REQUIRED.
SUBMIT SHOP DRAWINGS FOR EQUIPMENT NOTED ABOVE AS REQUIRED.
A. AIR HANDLING AND CONDENSING UNIT. INSTALLED ON APPROVED BASES WITH VIBRATION
ISOLATORS, CONDENSATE DRAIN PAN WITH DUAL CONDENSATE DRAINS, AND STRUCTURAL SUPPORT
AS NOTED ON PLANS. CONDENSING UNIT SHALL BE MOUNTED ON SUPPORT FRAME
RECOMMENDED BY MANUFACTURER AND APPROVED BY RULING AUTHORITIES.
B. HVAC EQUIPMENT SHALL PROVIDED WITH NON- CYCLING RELAY. BIRD SCREEN, RAIN HOOD,
AND MANUAL OUTSIDE AIR DAMPERS AS REQUIRED.
2.2 FILTERS: THROWAWAY TYPE LOCATED IN AIR HANDLER OR AT RETURN AIR GRILL UNLESS OTHERWISE
NOTED. FURNISH ONE (1) SPARE SET TO OWNER.
2.3 REFRIGERANT PIPING: "K" COPPER WITH WROUGHT COPPER SOLDER FITTINGS. INSULATE ALL
REFRIGERANT SUCTION LINES WITHIN BUILDING SPACES WITH 3/4" ARMAFLEX OR APPROVED EQUAL.
UNLESS OTHERWISE NOTED.
2.4 CONDENSATE DRAIN: "M" TYPE COPPER; PVC MAY BE USED FOR OTHER THAN AIR PLENUM
INSTALLATIONS WHERE ALLOWED BY RULING AUTHORITIES. CONNECT PIPING FROM UNIT THROUGH A 3-
INCH VENTED TRAP TO DRYWELL OR AS NOTED ON DRAWINGS. INSULATE CONDENSATE RUNS WITHIN
ATTIC AND OTHER NON - CONDITIONED SPACES.
2.5 THERMOSTATS: HEAT /OFF /COOL AND FAN /AUTO /ON SWITCHES, TYPE AS REQUIRED PER SELECTED
HVAC EQUIPMENT MANUFACTURER AND FULLY COMPATIBLE WITH HVAC SYSTEM COMPONENTS
USED. MANUFACTURERS SHALL BE HONEYWELL, BARBER - COLEMAN OR APPROVED EQUAL MOUNT
5' -6" ABOVE FLOOR UNLESS OTHERWISE NOTED.
2.6 AIR DISTRIBUTION ACCESSORIES: TITUS, AIR GUIDE, METAL -AIRE, OR APPROVED EQUAL DIFFUSERS
SHALL BE ELECTROSTATICALLY PAINTED ALUMINUM AND SHALL BE SUPPUED WITH MATCHING METAL
MOUNTING BOOTS, COMPLETELY INSULATED. UNLESS OTHERWISE NOTED, SUPPLY REGISTERS SHALL BE
INSTALLED WITH OPPOSITE BLADE DAMPERS. PROVIDE ADDITIONAL CONTROLS, CONNECTORS, PLENUM
BOXES, ROUND TO SQUARE NECK CONNECTORS AND ADDITIONAL COMPONENTS REQUIRED FOR COMPLETE
INSTALLATION.
2.7 DUCTWORK: PROVIDED IN ACCORDANCE WITH LATEST EDITION OF SMACNA "LOW VELOCITY DUCT
CONSTRUCTION STANDARDS% ASHRAE, ASTM, NFPA, AND APPLICABLE PROVISIONS OF THE
MECHANICAL CODE.
A. GALVANIZED SHEET METAL• SUPPLY AND RETURN DUCTWORK. EXHAUST AND OUTSIDE AIR.
DUCTWORK ABOVE ROOF SHALL BE WEATHERPROOFED AND PAINTED. INSULATION SHALL BE 1-
1/2" THICK RIGID ON INTERIOR. INSTALLED IN AN APPROVED MANNER.
B. NON - METAWC DUCT. WHERE PREVIOUSLY APPROVED BY ARCHITECT /OWNER AND RULING
AUTHORITIES, AIR CONDITIONING UNIT SUPPLY AND RETURN AIR DUCTS MAY BE UL APPROVED
1 -1/2" THICK FIBROUS GLASS DUCT BOARD TYPE 475. STAPLE AND TAPE ALL SEAMS AND
SECTIONS AND APPLY TAPE WITH ROBIN -AIRE HEAT GUN SET AT 400- DEGREE F., INSTALLED
PER MANUFACTURER'S INSTRUCTIONS.
C. FLEXIBLE DUCT. FACTORY INSULATED 1 -1/2" MINIMUM FLEXIBLE DUCTWORK. CLASS 1 AIR
DUCT, UL 181 APPROVED, SIMILAR TO OWENS- CORNING MODEL NO. INL -25, CERTIFIED
CERTAFLEX OR APPROVED EQUAL DUCTWORK SHALL HAVE RESILIENT CORE OF CONTINUOUS
INNER AIR BARRIER, JACKETED WITH A REINFORCED VAPOR JACKET. FIRE HAZARD
CLASSIFICATION SHALL HAVE A FLAME SPREAD OF 25, SMOKE RATING OF 50, IN ACCORDANCE
WITH ASTM C518 -70, ASTM E -84, AND UL 723 STANDARDS.
2.8 DUCTWORK INSTALLATION:
A. DUCTWORK SIZES SHOWN ARE INSIDE DIMENSIONS.
B. EXHAUST AND OUTSIDE AIR INTAKES SHALL BE GALVANIZED METAL IN ACCORDANCE WITH
SMACNA STANDARDS, SCREENED WITH A CORROSION- RESISTANT MATERIAL NOT LARGER THAN
1/2" MESH. OUTDOOR AIR INTAKE SHALL BE A MINIMUM OF TEN (10) FEET FROM
EXHAUSTS, FLUES, PLUMBING VENTS AND OTHER SOURCES OF EXHAUST.
C. LONGITUDINAL SEAMS SHALL BE PITTSBURGH LOCK OR APPROVED EQUAL. LATERAL SEAMS
SHALL BE SUP DRIVE OR STANDING. SUP SEAMS AND SHEET METAL SCREWS NOT PERMITTED.
D. JOINTS AND SEAMS SHALL BE SEALED WITH FOSTER 30 -02 DUCT SEALANT APPLIED ABOVE 32
DEGREES FAHRENHEIT.
E. DUCTS SHALL BE INDEPENDENTLY SUPPORTED TO PREVENT SAGGING, KINKING AND OTHER
PHYSICAL DAMAGE. WHERE PREVIOUSLY APPROVED BY ENGINEER, USE OF FLEXIBLE DUCTS
SHALL BE RESTRICTED ONLY FOR INDIVIDUAL BRANCH LENGTHS, MAXIMUM 10 FEET LONG.
2.9 DUCT INSULATION:
A. AIR CONDITIONING DUCTS SHALL BE EXTERNALLY INSULATED WITH R -6 2 -INCH BY 1 -1/2" LB
FIBROUS GLASS FLEXIBLE BLANKET WITH UL APPROVED FIRE RESISTING ALUMINUM FOIL VAPOR
SEAL FACING.
B. ROUND DUCTS SHALL BE WRAPPED WITH R -6 2 -INCH BY 3/4 LB BLANKET AS NOTED ABOVE.
JOINTS SHALL BE SEALED WITH FIRE RESISTING MASTIC AND 3 -INCH WIDE FOIL BACKED TAPE.
2.10 AIR CONDITIONING SUPPLY DUCT ELBOWS SHALL BE PROVIDED WITH APPROVED TURNING VANES.
RECTANGULAR ELBOWS EQUAL TO OR GREATER THAN 45- DEGREES SHALL HAVE DOUBLE THICKNESS
TURNING VANES. ROUND ELBOWS INSIDE RADIUS SHALL BE NOT LESS THAN 1.5 TIMES THE WIDTH OF
THE DUCT.
2.11 BRANCH TAKE -OFFS AND SUPPLY AIR REGISTERS SHALL BE PROVIDED WITH INDIVIDUAL ADJUSTABLE AIR
SPUTTER MANUAL VOLUME BALANCING DAMPERS. ALL ADJUSTING AND CONTROL HARDWARE SHALL BE
ACCESSIBLE.
2.12 PROVIDE CLAMPED FLEXIBLE CONNECTIONS BETWEEN DUCT AND FAN, DUCT AND MOTOR EQUIPMENT.
DUCT AND COLLARS, AND DUCT AND SIMILAR EQUIPMENT THAT COULD TRANSMIT AND CAUSE VIBRATION
AND NOISE.
PART 3 - EXECUTION
3.1 TEST do BALANCE: CONTRACTOR SHALL PROVIDE AND PAY FOR AN NEBB OR AABC CERTIFIED
INDEPENDENT CONTRACTOR REGULARLY AND EXCLUSIVELY ENGAGED IN THIS WORK TO ADJUST, TEST AND
BALANCE ALL SYSTEMS AS SHOWN ON PLANS. TEST SHALL INCLUDE BUT NOT BE LIMITED TO START -UP
AND TEST SYSTEM OPERATION IN ALL MODES IN CONJUNCTION WITH OTHER DISCIPLINES. CLEANING OF
UNIT INSIDE AND OUT, POLISH ALL CHROME AND ENAMEL FINISHES, REFRIGERANT CHANGE AND PROPER
CONTROLS OPERATION, LUBRICATION, ELECTRICAL SYSTEM TESTING FOR RELATED COMPONENTS, AND
BALANCING OF CFM QUANTITIES. PROVIDE ANY ADDITIONAL MANUAL VOLUME DAMPERS OR DUCT
ACCESSORIES AS REQUIRED TO ADJUST THE SYSTEM AS PER PLANS. AFTER COMPLETION, PROVIDE THREE
(3) CERTIFIED COPIES OF REPORT, INCLUDING WORKSHEET AND SUBSTANTIATING DATA, TO
ARCHITECT /OWNER AND ONE (1) CERTIFIED COPY TO ENGINEER.
3.2 VIBRATION ISOLATION: HVAC AND RELATED SYSTEMS COMPONENTS SHALL BE PROVIDED WITH
VIBRATION ISOLATION DEVICES AS PER MANUFACTURER'S RECOMMENDATIONS.
3.3. ALL EXTERNAL EQUIPMENT COMPONENTS SHALL BE FACTORY FINISH PAINTED FOR WEATHER PROTECTION
AND IN ACCORDANCE WITH ARCHITECTURAL PLANS.
3.4 CONTRACTOR SHALL MAKE ALL NECESSARY EXCAVATIONS, CUTTING AND REPATCHING AS NECESSARY FOR
THE PROPER EXECUTION OF THIS WORK.
3.5 VOLUME CONTROL DAMPERS SHALL BE PROVIDED WHERE INDICATED AND SHALL BE EQUIPPED WITH
LOCKING ADJUSTMENTS, READILY ACCESSIBLE.
3.6 CONTRACTOR SHALL GUARANTEE THAT ALL PIPE AND DUCTWORK SHALL OPERATE FREE OF VIBRATIONS,
RATTLES, PULSATIONS OR OBJECTIONABLE NOISES.
3.7 ALL MATERIALS AND EQUIPMENT SHALL BE NEW AND PROVIDED BY THIS CONTRACTOR. EQUIPMENT
REMOVAL FROM THE JOB SITE AND /OR DISPOSAL SHALL BE THE RESPONSIBIUTY OF THE CONTRACTOR.
COORDINATE WITH OWNER BEFORE COMMENCING WORK.
3.8 HVAC SYSTEM COMPONENTS AND EQUIPMENT SHALL BE CLEARLY AND PERMANENTLY IDENTIFIED.
WITH EQUIPMENT NUMBER, 2" HIGH LETTERS ON SIDES OF THE UNIT AS APPLICABLE AND IN
ACCORDANCE WITH OWNER'S REQUIREMENTS.
3.9 EQUIPMENT SHALL BE SUPPORTED FROM STRUCTURAL MEMBERS. NO WEIGHT SHALL BE PLACED ON
THE ROOFING MATERIALS, INSULATION. CEILING GRID, ROOF DECKING OR SIMILAR COMPONENTS.
3.10 BEFORE COMMENCING WORK CONTRACTOR SHALL COORDINATE WITH OWNER EXTENT OF WORK WITHIN
AND OUTSIDE BUILDING SPACE TO DETERMINE PROVISIONS REQUIRED.
MECHANICAL REMODELING AND DEMOLITION NOTES:
PART 1 - GENERAL
1.1 ALL WORK AND MATERIALS SHALL BE NEW AND PROVIDED BY THIS CONTRACTOR UNLESS OTHERWISE
NOTED AS EXISTING TO REMAIN OR BE RELOCATED. WORK SHALL ALSO INCLUDE THE REMOVAL AND
DISPOSAL OF MATERIALS FROM THE SITE AND THOROUGH CLEANING OF THE PREMISES UPON COMPLETION OF
THE WORK AS DIRECTED BY ARCHITECT /OWNER.
1.2 WORK SHALL INCLUDE PROVISIONS OF ALL MATERIALS, CUTTING. EXTENSIONS. CONNECTIONS, PATCHING,
PAINTING, REPAIRING, ADAPTING AND OTHER WORK INCIDENTAL THERETO, TOGETHER WITH SUCH
TEMPORARY CONNECTIONS AS MAY BE REQUIRED.
1.3 ANY WORK NOT SHOWN OR SPECIFICALLY MENTIONED ON PLANS AND /OR SPECIFICATIONS BUT CONSIDERED
NECESSARY FOR COMPLETION OF THE WORK IN THE PROPER MANNER SHALL BE PROVIDED BY THIS
CONTRACTOR WITHOUT ADDITIONAL CHARGE.
1.4 WHERE PRESENT WORK IS DAMAGED IN THE EXECUTION OF THIS WORK IN THE PROPER MANNER SHALL BE
PROVIDED BY THIS CONTRACT, OR WHERE OPENINGS ARE LEFT DUE TO THE REMOVAL OF PIPES, EQUIPMENT
OR APPARATUS, THE SAME SHALL BE REPAIRED OR CLOSED UP TO CORRESPOND IN MATERIAL., QUALITY,
SHAPE AND FINISHWITH THAT OF SIMILAR AND ADJOINING WORK, UNLESS OTHERWISE CALLED FOR. WHERE
DAMAGE IS UNREPAIRABLE, NEW ITEMS OR EQUIPMENT SHALL BE PROVIDED. PROVIDE ALL NECESSARY
WATERPROOFING, FIRE STOPPING AND SEALING OF PENETRATIONS LEFT FROM REMOVED EQUIPMENT OR
PRODUCED BY THIS WORK.
1.5 INTERRUPTION OF EXISTING SERVICES AND /OR OPERATION OF FACIUTIES SHALL BE KEPT TO A MINIMUM.
CONTRACTOR SHALL FURNISH ALL MATERIALS REQUIRED WHENEVER TEMPORARY CONNECTIONS ARE
NECESSARY TO MAINTAIN CONTINUITY OF SERVICE. INTERRUPTION OF EXISTING SERVICES,
THE INSTALLATION OF TEMPORARY FACILITIES, AND THE WORK OF MAKING FINAL CONNECTIONS TO THE
NEW WORK SHALL BE DONE ONLY AT SUCH TIMES PERMITTED AND SCHEDULED IN ADVANCE BY THE
ARCHITECT /OWNER WITHOUT ADDITIONAL COST. CARE MUST BE USED IN REMOVING SERVICES TO AREAS
BEING DEMOLISHED SO THAT SERVICES TO OTHER AREAS WHICH MIGHT BE SERVED THROUGH THESE
AREAS WILL NOT BE INTERRUPTED.
PART 2 - MECHANICAL
2.4 EXISTING COMPONENTS TO BE REUSED SHALL BE REFURBISHED TO "AS NEW CONDITION; WHERE
DAMAGE AND/OR OPERATIONAL RESTRICTIONS CANNOT JUSTIFY REUSE OF EXISTING COMPONENTS,
REPLACE SUC COMPONENTS WITH EQUAL NEW EQUIPMENT.
A. EXISTING DUCTWORK TO BE REUSED SHALL BE THOROUGHLY
CLEANED INSIDE AND OUT. REPLACE WHERE MOISTURE
CONDENSATION AND /OR PHYSICAL DAMAGE IS DEEMED
UNACCEPTABLE.
B. DIFFUSERS AND REGISTERS SHALL BE REMOVED, CLEANED, AND
PAINTED AS REQUIRED BEFORE BEING REINSTALLED.
C. MOTORS AND VENTILATION FANS SHALL BE CLEANED; AIR
CONDITIONING UNITS SHALL HAVE COIL, FAN SECTION AND
PLENUM SECTIONS CLEANED; HEATERS AND COMPRESSORS SHALL
BE CHECKED AND REPAIRED AS REQUIRED; FILTERS IN A/C UNIT
INCLUDING OUTSIDE AIR SYSTEM SHALL BE REPLACED.
2.5 TEST AND BALANCE OF EXISTING AIR CONDITIONING UNITS SHALL INCLUDE CHECKING AND
CORRECTION AS REQUIRED OF THE FOLLOWING COMPONENTS:
A. GENERAL- CLEAN THE AIR HANDUNG UNIT AND OUTSIDE
CONDENSING COIL LUBRICATE ALL MOVING PARTS AS REQUIRED
AND RECOMMENDED BY MANUFACTURER. CHECK CONDITION OF
BELTS, ADJUST TENSION, AND REPLACE AS REQUIRED. CHECK
REFRIGERANT OPERATING PRESSURES; VERIFY PROPER CHARGE
AND CERTIFY THERE ARE NO LEAKS.
B. AIR SIDE: CHECK EVAPORATOR SUPERHEAT. CHECK CONDITION OF
THE EXISTING DUCTWORK EXISTING MAIN TRUNK AND CLEAN AS
REQUIRED. VERIFY TEMPERATURE AT THE RETURN AND SUPPLY
AIR SYSTEMS MEETS DESIGN CRITERIA. CHECK OUTSIDE AIR IS
BALANCED ACCORDINGLY. REPLACE EXISTING FILTERS AND
RECOMMEND FILTER MAINTENANCE SCHEDULE.
C. CONTROLS: CHECK VOLTAGE AND AMPERAGE TO ALL MOTORS,
HEATERS AND RELATED ELECTRICAL COMPONENTS TO ASSURE
SATISFACTORY OPERATION. CHECK OPERATION OF THE
COMPRESSOR CONTACTOR. START CAPACITOR AND RELAYS.
INSPECT THERMOSTAT AND OBSERVE ITS OPERATION. CHECK
OPERATION OF ALL SAFETY CONTROLS. CHECK ALL WIRING AND
CONNECTIONS INSIDE THE UNIT.
D. CONDENSATE: VERIFY PANS AND DRAIN UNES ARE OPEN AND
FREE OF ALGAE, RUST AND SIMILAR OBSTRUCTIONS, AND THAT
DRYWELL IS OPERATING PROPERLY. CLEAN SYSTEM AS REQUIRED.
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NOTES:
1. PROVIDE BACKDRAFT DAMPER WITH BIRDSCREEN FOR
TOILET EXHAUST
2. FLASH AND SEAL WALL AND ROOF CAP
CEILING CAP DETAILS
NTS
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