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A. INSULATION, ADHESIVES, COATINGS, SEALERS, TAPES, ETC. SHALL HAVE A FLAME
15010 - BASIC MECHANICAL REQUIREMENTS
15890 - SHEET METAL DUCTWORK
SPREAD OF 25 OR LESS AND SMOKE DEVELOPMENT OF 50 OR LESS IN ACCORDANCE
Revised:
A. CODES & REFERENCES Q
A. ALL DUCT TO BE INSTALLED ACCORDING TO 1990 EDITION OF SMACNA STANDARDS.
WITH ASTM E -84, NFPA 225, UL 723 AND MEET THE REQUIREMENTS OF NFPA 90A.
1. VISIT SITE AT START OF PROJECT AND COORDINATE REQUIRED BALANCING EQUIPMENT
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B. ALL DUCT EXCEPT THAT SPECIFICALLY SHOWN IS TO BE GALVANIZED. SUPPLY RETURN
AND
DAMPERS WITH MECHANICAL CONTRACTOR.
1. FLORIDA STATE BUILDING CODE 2010.
AND EXHAUST DUCT SHALL BE 2' PRESSURE CLASS.
3 2. AIR
3
SYSTEMS:
2. SMACNA 1990
C. ALL SYSTEMS SHALL BE SEALED WITH U.L.LISTED MASTIC FOR A CLASS 'A' SEAL.
a.
MAKE CHANGES TO BELTS, PULLEYS, DAMPERS, ETC. TO OBTAIN
3. NFPA 101 (2009)
4. NFPA 90A (2009)
D. DUCTWORK ROUTED PARALLEL TO A WALL, RATED OR CORRIDOR SHALL BE INSTALLED
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DESIGN CONDITIONS AS REQUIRED BY TAB PROCEDURES.
5. NFPA 99 (2005)
WITH MINIMUM 6' CLEARANCE TO ALLOW FOR INSPECTION OF WALL PENETRATIONS.
b.
BALANCE SUPPLY, RETURN AND EXHAUST AIR OUTLETS WITHIN 10% OF DESIGN
a
CONTRACTOR SHALL PROVIDE 12' CLEARANCE WHERE POSSIBLE, COORDINATE.
WHILE MAINTAINING REQUIRED PRESSURE RELATIONSHIPS. RECORD DESIGN AND
6. FACILITIES GUIDELINE INSTITUTE GUIDELINES FOR DESIGN &
E. BUTTON SNAPLOCK JOINTS OR SEAMS ARE NOT PERMITTED.
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ACTUAL TOTALS.
CONSTRUCTION OF HEALTHCARE FACILITIES, 2010.
c.
MEASURE AND REPORT FAN RPM, FAN SUCTION PRESSURE, FAN DISCHARGE
B. SCOPE OF WORK
15910 - SHEET METAL ACCESSORIES
D
02
PRESSURE, FAN TOTAL PRESSURE AND PRESSURE DROP ACROSS COMPONENTS.
1. PROVIDE ALL REQUIRED PERMITS, LABOR, MATERIAL AND EQUIPMENT REQUIRED TO
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DESIGN AND ACTUAL SUPPLY, RETURN, OUTSIDE AND EXHAUST AIR.
COMPLETE THE SCOPE OF THE PROJECT SHOWN ON THE DRAWINGS COMPLETE AND
A. AIR INLETS AND OUTLET.
d.
ACTUAL AND DESIGN NAMEPLATE AMPERAGE ON FAN MOTORS.
READY FOR OCCUPANCY AND USE BY OWNER. THE WORK SHALL INCLUDE BUT IS NOT
].REFER TO SCHEDULE.
e.
PRESSURE DIFFERENTIAL ACROSS DUCT SMOKE DETECTORS.
LIMITED TO:
2. ALL ALUMINUM CONSTRUCTION.
f.
ADJUST FANS FOR LOWEST STATIC PRESSURE REQUIRED TO DELIVER TO OUTLETS
a. REMOVAL, RELOCATION AND RE- INSTALLATION OF EXISTING EQUIPMENT AND
3. ACCEPTABLE MANUFACTURERS: TITUS, PRICE, METAL -AIRE, CARNES, ANEMOSTAT,
AS NOTED IN NEBB OR AABC PROCEDURES.
SYSTEM.
NAILOR, POTTORFF.
3. WATER
SYSTEMS:
b. CONNECTIONS TO EXISTING OR NEW EQUIPMENT AND SYSTEMS.
B. FIRE DAMPERS
a.
ADJUST AND RECORD ACTUAL GPM AND SYSTEM SUCTION AND DISCHARGE
c. MODIFICATION OF EXISTING DUCTWORK TEMPERATURE CONTROLS AND LIFE - SAFETY
I. FIRE DAMPERS SHALL BE TYPE 'B' CURTAIN TYPE, SUITABLE FOR EITHER VERTICAL
�°-
PRESSURES (STATIC AND OPERATING).
SYSTEMS.
OR HORIZONTAL INSTALLATION, WITH 20 GAUGE STEEL CHANNEL FRAMES,
d. CUTTING AND PATCHING TO REMOVE EXISTING OR INSTALL NEW WORK.
24 GAUGE STEEL BLADES AND 18 GAUGE STEEL ENCLOSURE WITH DUCT COLLARS.
ALL PARTS GALVANIZED MILL FINISH.
e. CLEANING AND TESTING.
2. FIRE DAMPERS SHALL BE EQUAL TO RUSKIN TYPE IBD2 FOR WALLS UP TO 2 HOURS.
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f. INSTRUCTION TO OWNER'S PERSONNEL.
3.INSTALL IN ACCORDANCE WITH NFPA -90A, TESTED IN ACCORDANCE WITH UL SAFETY
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2. PROVIDE ALL BUILDING PENETRATIONS REQUIRED TO COMPLETE PROJECT. ALL
STANDARD 555.
PENETRATIONS SHALL BE PATCHED AND SEALED WATERTIGHT. MAINTAIN FIRE
4. FURNISH FIRE DAMPERS AND ACCESS DOORS IN ALL DUCTS PENETRATING
A RATINGS OF EXISTING STRUCTURE.
ANY RATED CONSTRUCTION AND WHERE INDICATED ON DRAWINGS.
5. USE FOLDING BLADE TYPE 'C' IN HIGH VELOCITY ROUND DUCTS. USE FOLDING BLADE
3. PROVIDE ALL NECESSARY DUCT, EQUIPMENT AND MATERIALS REQUIRED FOR
TYPE FOR SQUARE AND RECTANGULAR DUCTS, AS DETAILED.
INSTALLATION PER THE REQUIREMENTS OF LOCAL, STATE OR FEDERAL CODES.
6.FIRE DAMPERS SHALL BEAR THE 1 HOUR UNDERWRITER'S LABORATORY UL SAFETY
STANDARD 555, RATED PROTECTION REQUIRED, 165AF FUSIBLE LINK.
7. ACCEPTABLE MANUFACTURERS SHALL BE RUSKIN, AIR BALANCE, GREENHECK, NAILOR.
C. REQUIRED SHOP DRAWINGS
C. FLEXIBLE DUCTWORK
i. INSULATION.
2. AIR DEVICES.
1. SHALL BE FLEXMASTER 8MM OR THERMAFLEX M -KE.
3. NOT USED.
2. FLEXIBLE DUCTWORK SHALL BE ACOUSTICAL LOW PRESSURE TYPE FIBERGLASS
4. DUCTWORK FITTINGS.
INSULATION WITH AN R VALUE OF 6.0 OR GREATER AND COPOLYMER SEAMLESS
5. CONTROLS.
OUTSIDE SLEEVE. THE ENTIRE FLEXIBLE DUCT ASSEMBLY SHALL BE LISTED IN
6. FANS.
ACCORDANCE WITH UL -181 CLASS 1 AIR DUCT MATERIAL. THE LENGTH OF ANY FLEX
DUCT SHALL BE MAXIMUM 8' -0', MINIMUM 4' -0'. FLEXIBLE DUCTWORK SHALL MEET
THE FLORIDA MODEL ENERGY EFFICIENCY CODE. ALL JOINTS AT CONNECTIONS TO
D. MAINTENANCE MANUALS
DIFFUSERS AND DUCTWORK SHALL BE SEALED WITH GLASS, FABRIC AND MASTIC.
1. PROVIDE MAINTENANCE MANUALS FOR ALL NEW EQUIPMENT CONTAINING ALL 3
D. BALANCING DAMPERS (RUSKIN MD -35 SERIES)
OPERATING AND MAINTENANCE DATA, SUBMITTALS, WARRANTEES, DIAGRAMS,
INSPECTION REPORTS AND VALVE LISTS IN A 3 RING BINDER WITH POCKETS FOR
GENERAL - IN ALL DUCTWORK SYSTEMS, PROVIDE DAMPERS FOR PROPER CONTROL 1.
DRAWINGS. PROVIDE OWNER WITH MINIMUM OF 2 COPIES.
AND BALANCING OF AIR QUANTITIES. CONCEALED DAMPERS SHALL HAVE CONCEALED
DAMPER REGULATOR. ALL COMPONENTS FOR PROPER OPERATION; (i.e. GEARS,
E. RECORD DRAWINGS
LINKAGES, CABLE, ETC.) SHALL BE INCLUDED.
2.TYPE: FACTORY MANUFACTURED ONLY, OPPOSED BLADE FOR 12' AND LARGER AND
1. THE CONTRACTOR SHALL MAINTAIN AN ACCURATE RECORD OF ALL CHANGES MADE
SINGLE BLADE UP TO 11' IN HEIGHT.
TO THE CONTRACT DOCUMENTS.
3.MATERIAL: STEEL, 3V TYPE BLADES MOUNTED IN STEEL CHANNEL FRAME.
2.THE CONTRACTOR SHALL PROVIDE THE ENGINEER 2 SETS OF COMPLETED RECORD
DRAWINGS.
3.THE PROJECT WILL NOT BE CONSIDERED COMPLETE UNTIL ACCURATE RECORD
4. SHAFT: 3/g SQUARE ROD OPERATOR WITH END BEARINGS AND GASKET SEAL AT DUCT
DRAWINGS ARE DELIVERED.
PENETRATIONS. TERMINATE SHAFT IN DAMPER FRAME WITH BUSHINGS.
5.OPERATOR: LOCKING QUADRANT HANDLE WITH DAMPER POSITION INDICATOR AND
F. SUBSTITUTIONS
INSULATION STAND OFF MOUNTING BRACKET FOR EXTERNALLY INSULATED DUCTWORK.
1. EQUIPMENT AND DESIGN OF SYSTEMS INDICATED ON THE DESIGN DRAWINGS AND
6. MANUFACTURER: RUSKIN MODEL MD -35 SERIES OR EQUAL BY AIR BALANCE, INC. OR
WITHIN THESE SPECIFICATIONS SHALL BE CONSIDERED AS 'SPECIFIED STANDARD'
GREENHECK.
OF QUALITY. NO SUBSTITUTIONS SHALL BE MADE WITHOUT PRIOR WRITTEN APPROVAL
OF THE ENGINEER 10 DAYS PRIOR TO BID DATE.
E. ACCESS DOORS
2.ANY DEVIATION FROM SPECIFIED EQUIPMENT THAT AFFECTS THE ELECTRICAL
1. ACCEPTABLE MANUFACTURERS:
REQUIREMENTS SHALL BE COORDINATED BY THE MECHANICAL CONTRACTOR AND
a. RUSKIN MODEL ADH22.
EQUIPMENT VENDOR WITH THE ELECTRICAL CONTRACTOR PRIOR TO SUBMITTING
b. VENCO CAD -10.
BIDS.
c. GREENHECK HAD -10.
2. SIZE ACCESS DOOR AS FOLLOWS:
15050 - BASIC MATERIALS AND METHODS
a. DUCT SIZES UNDER 12': DOOR SIZED SUFFICIENT TO EQUIPMENT OR REPLACE
A. LABELING
FUSIBLE LINK.
b. DUCT SIZES 12" TO 20% 12'x12' DOOR.
1. PROVIDE RIGID PLASTIC EMBOSSED EQUIPMENT NAME TAGS FOR ALL NEW EQUIPMENT
c. DUCT SIZES 20' TO 36': 18'x18' DOOR.
AND DISCONNECTS. SETON NAMEPLATE CORPORATION.
d. DUCT SIZES 36" AND ABOVE: 24'x24' DOOR.
3. USE DOUBLE PANEL CONSTRUCTION, TWO SHEETS OF AT LEAST 24 GAUGE
GALVANIZED STEEL WITH V THICK INSULATION BETWEEN PANELS.
B. CLEANING TESTING AND ADJUSTING
4. MOUNT DOORS IN A RIGID FRAME OF AT LEAST 22 GAUGE FORMED GALVANIZED
i. THE MECHANICAL CONTRACTOR, AT HIS EXPENSE, SHALL CLEAN, REPAIR, ADJUST,
STEEL OR ALUMINUM.
CHECK, BALANCE AND PLACE IN SERVICE THE VARIOUS SYSTEMS HEREIN SPECIFIED
5. PROVIDE LATCHES THAT PERMIT EASY REMOVAL OF ACCESS DOOR WHILE MAINTAINING
WITH THEIR RESPECTIVE EQUIPMENT, ACCESSORIES AND PIPING. HE /SHE SHALL
POSITIVE CLOSING AND MINIMUM LEAKAGE.
FURNISH ALL LABOR, MATERIALS, EQUIPMENT AND TOOLS REQUIRED TO PERFORM
& PROVIDE SPONGE RUBBER GASKETS FOR ALL DOORS.
TESTS REQUIRED BY THESE SPECIFICATIONS AND BY THE GOVERNING AUTHORITIES.
7.IN ACCORDANCE WITH NFPA 90A, IDENTIFY EACH ACCESS DOOR WITH 1/2 HIGH
2. NO WORK SHALL BE COVERED OR CONCEALED UNTIL PROPERLY INSPECTED AND
STENCILED LETTERS AS 'FIRE DAMPER', 'SMOKE DAMPER', OR 'COMBINATION
TESTED.
FIRE /SMOKE DAMPER'.
E. BRANCH CONNECTIONS- CLINCH LOCK TYPE NOT PERMITTED.
F. HANGERS AND SUPPORTS
15970 - TEMPERATURE CONTROLS Q
1. PROVIDE ALL NECESSARY DUCTWORK, PIPE SUPPORTS, HANGERS, RODS, CLAMPS
3
AND ATTACHMENTS TO PROPERLY INSTALL AND SUPPORT DUCTWORK, PIPING AND
A. EXTEND EXISTING CONTROL SYSTEM TO NEW EQUIPMENT AND PROVIDE ALL
EQUIPMENT FROM THE BUILDING STRUCTURE.
MODIFICATIONS NECESSARY FOR A FULLY FUNCTIONING SYSTEM.
2. PROVIDE ANY ANGLE IRON OR UNISTRUT AND SUSPENSION RODS REQUIRED TO INSTALL
B. RELOCATE EXISTING REHEAT COIL THERMOSTATS.
EQUIPMENT, PIPING AND DUCTWORK.
3. ALL SUPPORTS EXPOSED TO OUTDOORS SHALL BE CLEANED, PRIMED AND PAINTED TO
1. THE EXISTING CONTROL SYSTEM IS TO BE MODIFIED BY THE OWNERS EXISTING
PREVENT RUSTING. FINISH COLOR AS SELECTED BY OWNER.
CONTROL VENDOR.
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4. THE USE OF BAILING WIRE OR PERFORATED METAL STRAPPING IS NOT PERMITTED FOR
2. CONTROL CONTRACTOR SHALL PROVIDE ALL WIRING REQUIRED FOR THE CONTROL
=
SUPPORTS.
SYSTEM TO OPERATE.
3. MOUNT THERMOSTATS 48' A.F.F. ALIGN WITH LIGHT SWITCHES, DOOR SWINGS AND
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G. WARRANTY /GUARANTEE
OTHER WALL MOUNTED DEVICES.
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4. COORDINATE FINAL LOCATION OF THERMOSTATS WITH THE OWNER PRIOR TO
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I. THE CONTRACTOR SHALL WARRANTY /GUARANTEE AND MAINTAIN THE STABILITY OF
INSTALLATION.
WORK AND MATERIALS AND KEEP SAME IN PERFECT REPAIR AND CONDITION OF THE
PERIOD OF ONE YEAR.
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2. DEFECTS OF ANY KIND DUE TO THE FAULTY WORK OR MATERIALS APPEARING
15990 -TEST AND BALANCE
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DURING THE ABOVE MENTIONED PERIOD MUST BE IMMEDIATELY MADE GOOD BY
THE CONTRACTOR AT HIS OWN EXPENSE TO THE ENTIRE SATISFACTION OF THE
A. PROVIDE COMPLETE TEST ANC OF ALL WATER AND AIR SYSTEMS IN
N
OWNER AND ENGINEER. SUCH RECONSTRUCTION AND REPAIRS SHALL INCLUDE
ACCORDANCE WITH NEBB (NATIONAL ENVIRONMENTAL BALANCING BUREAU) OR AABC
DAMAGE TO THE FINISH OR FURNISHING OF THE BUILDING RESULTING FROM THE
(ASSOCIATED AIR BALANCE COUNCIL) STANDARDS.
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ORIGINAL DEFECT OR REPAIR THERETO.
B. TEST AND BALANCE FIRM SHALL BE:
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I. EARL HAYGOOD, INC. - (305) 266 -7070.
°
15250 - INSULATION
2. GFS CONSULTING - (305) 992 -4348.
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B. MOTOR DESIGN AND ACTUAL AMPERAGE AT PUMPS.
c. DESIGN AND ACTUAL GPM AND TEMPERATURE DIFFERENCE ACROSS COILS,
CONVERTERS, CHILLER AND TOWERS.
d. ADJUST AND RECORD SYSTEM MAKEUP PRESSURE, RELIEF PRESSURE SETTING AND
EXPANSION TANK PRESSURE.
4. CONFIRM OPERATION OF ALL CONTROLS, MANOMETERS AND SENSING DEVICES.
5. ON AHCA REVIEWABLE PROJECTS PROVIDE WRITTEN REPORT AT LEAST ONE WEEK
BEFORE FINAL INSPECTION AND PROVIDE A TECHNICIAN DURING FINAL INSPECTION
OF PROJECT.
6. CONTRACTOR SHALL PROVIDE FINAL SHEAVE CHANGE OUT AND ADJUSTMENT FOR
MAXIMUM AMPRAGE TO INCLUDE DIRTY FILTER ALLOWANCE LOADING ALLOWING THE
VFD TO RAMP UP IN RESPONSE TO FILTER LOADING.
15785 - COMPUTER ROOM AIR CONDITIONING UNIT
A. General:
1. Work Included:
a. Comply with the provisions of section 15010.
b. Provide components and controls for cooling, humidification,
dehumidification, and high efficiency air cleaning capacities
and sizes scheduled and in locations as shown on drawings
and as specified herein.
2. System Description:
a. The system shall be a direct expansion
type as scheduled.
3. Related Work:
a. Section 15060: Piping and Fittings
b. Section 15065: Refrigeration Piping System
c. Division 16: Electrical
4. Quality Assurance:
a. Provide unit consisting of U.L. or ETL listed components, factory
> tested to conform to ASHRAE and ARI standards.
5. Submittals:
> a. Submit product data for review.
> B. Products:
6. Acceptable Manufacturers:
a. Liebert, DataAire.
7. Equipment Requirements:
a. Indoor /Outdoor unit: Factory wired and piped, containing the following items:
1. Frame and decorative insulated and sound proofed side panels
constructed of welded structurally formed 11 gauge steel, with
corners braced and coated with rust resisting paint.
2. Decorative outer front side and rear removable panels constructed
of 16 gauge steel and painted in a standard textured gray finish,
insulated and sound proofed.
3. Down discharge, center front return air panel constructed of
aluminum with a non -glare anodized finish or top return.
4. Service access at the front of the unit only.
5. Filter section consisting of a set of high capacity filters with rating
of not less than 30% efficiency using ASHRAE 52 -76.
6. Filter clog switch which senses and indicates dirty filters at a pilot
light on the panel.
7. Fan section which contains two D.W.D.I. forward curve centrifugal
fans arranged for down flow discharges in the raised floor. Drive
motors mounted on an adjustable base and connected with an
adjustable 'U' belt drive.
8. Cooling coil drain pan section constructed of stainless steel.
9. Cooling coil not more than five rows deep constructed of copper
tubes and aluminum fins.
10. Electrical starter -relay panel in the units, completely pre -wired with
circuit breakers,with starters, contactors relays, and terminal strips
furnished, mounted, and wired.
11. Twenty -four volt control transformer for controls.
12. Automatic thermostats, humidistats, relays, switches, pilot lights,
and name- tags with a system on /off switch on the indicating
light panel strip.
13. 'SERVICE' alarm arrangement in the control system to indicate
compressor overload, refrigerant high - pressure conditions, fan
motor overload, air failure, and room -h]- temperature conditions.
This 'SERVICE' alarm system shall contain a service pilot light and
audible alarm bell with silencing switch.
14. Hot water, hot has, or electric reheat coil, as scheduled, located
on the leaving side of the cooling coil.
15. Refrigerant safety circuit with a separate high and low pressure
cutout with a manual reset on the high side.
16. Built -In humidifier for space humidification by means of a controlled
electric heater water vapor system using city water at al /finch size
valved connection.
17. Compressor section consisting of two independent scroll compressors
operating on Refrigerant R -407C. Provide compressors with internal motor
protection, heavy duty motor, built -in muffler, internal spring vibration
mounts, discharge and suction service valves, and anti -slug device.
Mount compressors on a heavy gauge steel drip pan.
18. Refrigerant receiver, with service valves and relief valves, and a
pumpdown capacity sufficient for the piping system shown.
19. Modulating capacity control (hot gas bypass) in the refrigerant circuit
to maintain design conditions at reduced loads of down to 25%. Include
a. solenoid valve and adjustable modulating valve pre -piped to evaporator
coil and pre- wired.
b. Outdoor unit (condenser): Factory wired and piped containing the
following items:
1. Coils with aluminum fins and apertures.
2. Fan motors: Weatherproof.
3. Fans: Direct drive and made of non - corrosive material.
4. Winter operation, head pressure control valve designed to operate
continually at down to minus 20 degrees F. ambient utilizing fan
speed control.
AB
15065 - REFRIGERATION PIPING SYSTEM
1.01 WORK INCLUDED
A. Piping, valves and fittings for refrigerant piping systems
shown on drawings. --- - - - - -
1.02 RELATED WORK
A. Section 15050: Basic Materials and Methods.
B. Section 15061: Pipe Hangers
C. Section 15250: Mechanical System Insulation
1.03 SAFETY CODE
A. Comply with the requirements of ANSI B 9.1, Code for Refrigerant
Systems.
1.04 SUBMITTALS
A. Submit for review manufacturer's product data for refrigerant
piping system components.
PART 2 - PRODUCTS
2.01 MATERIALS
A. Piping: Type 'L' ARC hard copper, ASTM B88.
B. Fittings: Wrought copper.
C. Solder: Silver solder, or phos- copper solder having a melting point
of 1125AF or higher.
D. Service Valves: Henry valves or equal. Provide packed type receiver,
purge, and gauge valves with valve stem seal cap parts.
1. Valves up to5 OD: Henry Figure 516 or equal, diaphragm type.
2. Valves larger than5 /8 OD: Henry Figure 203 or equal.
E. Refrigerant Filter Dehydrator and Moisture Indicator
1. Dehydrator: Sporlon Co. Catch -All, or equal, with replaceable core, type,
of size recommended by manufacturer for maximum design tonnage.
2. Moisture Indicator: Sporlan Co. See -Ali, type SA -125, or equal.
F. Pipe Supports:
1. Pipes subject to vibration: Isolation type brackets.
2. Pipes not subject to vibration: Grinnel No. CT -95 or equal.
3. Riser clamps: Grinnel CT -121 or equal.
G. Escutcheons: Chrome plated escutcheons sized for pipe.
PART 3 - EXECUTION
3.01 INSTALLATION
A. Make solder joints with carbon dioxide or nitrogen passing through
joints being soldered. Insure a clean, tight system. Pull a clean rag
through each piece of tubing after cutting or reaming.
B. Install pipe and hangers in accordance with hanger manufacturer's
printed instructions.
3.02 LEAK TESTING
A. Test for leaks by use of carbon dioxide or nitrogen and a liquid
soapsuds solution. Correct leaks found.
B. Evacuate system to 20' vacuum and charge with refrigerant until
a pressure of 15 psig is reached. Then test for leaks using a Halide
leak detector. Correct leaks found.
C. Pressurize system, with carbon dioxide or nitrogen, to 300 psig on
the high side, and 200 psig on the low side, and test for leaks.
Correct leaks found.
3.03 SYSTEM DEHYDRATION
A. Dehydrate system by 'Double Dehydration' method.
B. Use a suitable vacuum pump. Evacuate system to a vacuum of
0.2' Hg absolute and operate pump for eight hours when that pressure
is reached.
C. After eight hours, admit dry nitrogen directly to the system, and then
evacuate system to a vacuum of 0.2' Hg absolute and operate pump
for four hours.
3.04 CHARGING SYSTEM
A. When system dehydration is complete and all leaks are corrected,
charge system with refrigerant.
3.05 SAFETY CODE
A. System shall be in accordance with ANSI B9.1 Code for Refrigeration
Systems.
Smith
SR Seckman
Reid, Inc.
600 West Hillsboro, Suite 300
Deerfield Beach, FL 33441
(954) 421 -1260
FAX: (954) 421 -1466
www.ssr - inc.com
Firm Certification - EB- 0000857
Michael A. Steward PE - 65701
John E. Moulder PE - 33200
SSR JOB # 1232016.0
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A. INSULATION, ADHESIVES, COATINGS, SEALERS, TAPES, ETC. SHALL HAVE A FLAME
C. CONTRACTOR SHALL:
Drawn:
SPREAD OF 25 OR LESS AND SMOKE DEVELOPMENT OF 50 OR LESS IN ACCORDANCE
Revised:
d'
2
WITH ASTM E -84, NFPA 225, UL 723 AND MEET THE REQUIREMENTS OF NFPA 90A.
1. VISIT SITE AT START OF PROJECT AND COORDINATE REQUIRED BALANCING EQUIPMENT
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ALL INSULATING R- VALUES TO MEET THE REQUIREMENTS OF THE FLORIDA ENERGY
AND
DAMPERS WITH MECHANICAL CONTRACTOR.
Q 3
CODE.
3 2. AIR
3
SYSTEMS:
LL
C. BLANKET TYPE DUCT INSULATION, JOHNS MANVILLE, CERTAINTEED, KNAUF, OWENS
a.
MAKE CHANGES TO BELTS, PULLEYS, DAMPERS, ETC. TO OBTAIN
CORNING, MINIMUM R =6.0, FOIL FACED KRAFT VAPOR BARRIER GLASS FABRIC &
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DESIGN CONDITIONS AS REQUIRED BY TAB PROCEDURES.
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MASTIC ALL JOINTS.
b.
BALANCE SUPPLY, RETURN AND EXHAUST AIR OUTLETS WITHIN 10% OF DESIGN
a
WHILE MAINTAINING REQUIRED PRESSURE RELATIONSHIPS. RECORD DESIGN AND
1. ALL SUPPLY AND RETURN WHERE CONCEALED FROM VIEW, R -6
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ACTUAL TOTALS.
c.
MEASURE AND REPORT FAN RPM, FAN SUCTION PRESSURE, FAN DISCHARGE
=
�.
2•MINIMUM DUCT INSULATION THICKNESS AND R VALUES ARE AS FOLLOWS:
D
02
PRESSURE, FAN TOTAL PRESSURE AND PRESSURE DROP ACROSS COMPONENTS.
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DESIGN AND ACTUAL SUPPLY, RETURN, OUTSIDE AND EXHAUST AIR.
A
a. SUPPLY AND RETURN AIR IN UNCONDITIONED SPACE: 2.25' (R -6 MIN.)
d.
ACTUAL AND DESIGN NAMEPLATE AMPERAGE ON FAN MOTORS.
1-
2
e.
PRESSURE DIFFERENTIAL ACROSS DUCT SMOKE DETECTORS.
f.
ADJUST FANS FOR LOWEST STATIC PRESSURE REQUIRED TO DELIVER TO OUTLETS
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AS NOTED IN NEBB OR AABC PROCEDURES.
3. WATER
SYSTEMS:
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a.
ADJUST AND RECORD ACTUAL GPM AND SYSTEM SUCTION AND DISCHARGE
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PRESSURES (STATIC AND OPERATING).
B. MOTOR DESIGN AND ACTUAL AMPERAGE AT PUMPS.
c. DESIGN AND ACTUAL GPM AND TEMPERATURE DIFFERENCE ACROSS COILS,
CONVERTERS, CHILLER AND TOWERS.
d. ADJUST AND RECORD SYSTEM MAKEUP PRESSURE, RELIEF PRESSURE SETTING AND
EXPANSION TANK PRESSURE.
4. CONFIRM OPERATION OF ALL CONTROLS, MANOMETERS AND SENSING DEVICES.
5. ON AHCA REVIEWABLE PROJECTS PROVIDE WRITTEN REPORT AT LEAST ONE WEEK
BEFORE FINAL INSPECTION AND PROVIDE A TECHNICIAN DURING FINAL INSPECTION
OF PROJECT.
6. CONTRACTOR SHALL PROVIDE FINAL SHEAVE CHANGE OUT AND ADJUSTMENT FOR
MAXIMUM AMPRAGE TO INCLUDE DIRTY FILTER ALLOWANCE LOADING ALLOWING THE
VFD TO RAMP UP IN RESPONSE TO FILTER LOADING.
15785 - COMPUTER ROOM AIR CONDITIONING UNIT
A. General:
1. Work Included:
a. Comply with the provisions of section 15010.
b. Provide components and controls for cooling, humidification,
dehumidification, and high efficiency air cleaning capacities
and sizes scheduled and in locations as shown on drawings
and as specified herein.
2. System Description:
a. The system shall be a direct expansion
type as scheduled.
3. Related Work:
a. Section 15060: Piping and Fittings
b. Section 15065: Refrigeration Piping System
c. Division 16: Electrical
4. Quality Assurance:
a. Provide unit consisting of U.L. or ETL listed components, factory
> tested to conform to ASHRAE and ARI standards.
5. Submittals:
> a. Submit product data for review.
> B. Products:
6. Acceptable Manufacturers:
a. Liebert, DataAire.
7. Equipment Requirements:
a. Indoor /Outdoor unit: Factory wired and piped, containing the following items:
1. Frame and decorative insulated and sound proofed side panels
constructed of welded structurally formed 11 gauge steel, with
corners braced and coated with rust resisting paint.
2. Decorative outer front side and rear removable panels constructed
of 16 gauge steel and painted in a standard textured gray finish,
insulated and sound proofed.
3. Down discharge, center front return air panel constructed of
aluminum with a non -glare anodized finish or top return.
4. Service access at the front of the unit only.
5. Filter section consisting of a set of high capacity filters with rating
of not less than 30% efficiency using ASHRAE 52 -76.
6. Filter clog switch which senses and indicates dirty filters at a pilot
light on the panel.
7. Fan section which contains two D.W.D.I. forward curve centrifugal
fans arranged for down flow discharges in the raised floor. Drive
motors mounted on an adjustable base and connected with an
adjustable 'U' belt drive.
8. Cooling coil drain pan section constructed of stainless steel.
9. Cooling coil not more than five rows deep constructed of copper
tubes and aluminum fins.
10. Electrical starter -relay panel in the units, completely pre -wired with
circuit breakers,with starters, contactors relays, and terminal strips
furnished, mounted, and wired.
11. Twenty -four volt control transformer for controls.
12. Automatic thermostats, humidistats, relays, switches, pilot lights,
and name- tags with a system on /off switch on the indicating
light panel strip.
13. 'SERVICE' alarm arrangement in the control system to indicate
compressor overload, refrigerant high - pressure conditions, fan
motor overload, air failure, and room -h]- temperature conditions.
This 'SERVICE' alarm system shall contain a service pilot light and
audible alarm bell with silencing switch.
14. Hot water, hot has, or electric reheat coil, as scheduled, located
on the leaving side of the cooling coil.
15. Refrigerant safety circuit with a separate high and low pressure
cutout with a manual reset on the high side.
16. Built -In humidifier for space humidification by means of a controlled
electric heater water vapor system using city water at al /finch size
valved connection.
17. Compressor section consisting of two independent scroll compressors
operating on Refrigerant R -407C. Provide compressors with internal motor
protection, heavy duty motor, built -in muffler, internal spring vibration
mounts, discharge and suction service valves, and anti -slug device.
Mount compressors on a heavy gauge steel drip pan.
18. Refrigerant receiver, with service valves and relief valves, and a
pumpdown capacity sufficient for the piping system shown.
19. Modulating capacity control (hot gas bypass) in the refrigerant circuit
to maintain design conditions at reduced loads of down to 25%. Include
a. solenoid valve and adjustable modulating valve pre -piped to evaporator
coil and pre- wired.
b. Outdoor unit (condenser): Factory wired and piped containing the
following items:
1. Coils with aluminum fins and apertures.
2. Fan motors: Weatherproof.
3. Fans: Direct drive and made of non - corrosive material.
4. Winter operation, head pressure control valve designed to operate
continually at down to minus 20 degrees F. ambient utilizing fan
speed control.
AB
15065 - REFRIGERATION PIPING SYSTEM
1.01 WORK INCLUDED
A. Piping, valves and fittings for refrigerant piping systems
shown on drawings. --- - - - - -
1.02 RELATED WORK
A. Section 15050: Basic Materials and Methods.
B. Section 15061: Pipe Hangers
C. Section 15250: Mechanical System Insulation
1.03 SAFETY CODE
A. Comply with the requirements of ANSI B 9.1, Code for Refrigerant
Systems.
1.04 SUBMITTALS
A. Submit for review manufacturer's product data for refrigerant
piping system components.
PART 2 - PRODUCTS
2.01 MATERIALS
A. Piping: Type 'L' ARC hard copper, ASTM B88.
B. Fittings: Wrought copper.
C. Solder: Silver solder, or phos- copper solder having a melting point
of 1125AF or higher.
D. Service Valves: Henry valves or equal. Provide packed type receiver,
purge, and gauge valves with valve stem seal cap parts.
1. Valves up to5 OD: Henry Figure 516 or equal, diaphragm type.
2. Valves larger than5 /8 OD: Henry Figure 203 or equal.
E. Refrigerant Filter Dehydrator and Moisture Indicator
1. Dehydrator: Sporlon Co. Catch -All, or equal, with replaceable core, type,
of size recommended by manufacturer for maximum design tonnage.
2. Moisture Indicator: Sporlan Co. See -Ali, type SA -125, or equal.
F. Pipe Supports:
1. Pipes subject to vibration: Isolation type brackets.
2. Pipes not subject to vibration: Grinnel No. CT -95 or equal.
3. Riser clamps: Grinnel CT -121 or equal.
G. Escutcheons: Chrome plated escutcheons sized for pipe.
PART 3 - EXECUTION
3.01 INSTALLATION
A. Make solder joints with carbon dioxide or nitrogen passing through
joints being soldered. Insure a clean, tight system. Pull a clean rag
through each piece of tubing after cutting or reaming.
B. Install pipe and hangers in accordance with hanger manufacturer's
printed instructions.
3.02 LEAK TESTING
A. Test for leaks by use of carbon dioxide or nitrogen and a liquid
soapsuds solution. Correct leaks found.
B. Evacuate system to 20' vacuum and charge with refrigerant until
a pressure of 15 psig is reached. Then test for leaks using a Halide
leak detector. Correct leaks found.
C. Pressurize system, with carbon dioxide or nitrogen, to 300 psig on
the high side, and 200 psig on the low side, and test for leaks.
Correct leaks found.
3.03 SYSTEM DEHYDRATION
A. Dehydrate system by 'Double Dehydration' method.
B. Use a suitable vacuum pump. Evacuate system to a vacuum of
0.2' Hg absolute and operate pump for eight hours when that pressure
is reached.
C. After eight hours, admit dry nitrogen directly to the system, and then
evacuate system to a vacuum of 0.2' Hg absolute and operate pump
for four hours.
3.04 CHARGING SYSTEM
A. When system dehydration is complete and all leaks are corrected,
charge system with refrigerant.
3.05 SAFETY CODE
A. System shall be in accordance with ANSI B9.1 Code for Refrigeration
Systems.
Smith
SR Seckman
Reid, Inc.
600 West Hillsboro, Suite 300
Deerfield Beach, FL 33441
(954) 421 -1260
FAX: (954) 421 -1466
www.ssr - inc.com
Firm Certification - EB- 0000857
Michael A. Steward PE - 65701
John E. Moulder PE - 33200
SSR JOB # 1232016.0
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