Division 23 Heating Ventilating Air Conditioning (Hvac)
FACILITIES MANAGEMENT – DESIGN & CONSTRUCTION4202 E. FOWLER AVENUE, OPM 100 TAMPA, FLORIDA 33620-7550EDITION: MARCH 23. 2020PHONE: (813) 974-2845 WEBSITE: usf.edu/fm-dcDESIGN & CONSTRUCTION GUIDELINESDIVISION 23 HEATING, VENTILATING & AIR CONDITIONING CTIONSECTIONSECTIONSECTIONSECTIONSECTION23 HEATING, VENTILATING & AIR CONDIITONING (HVAC)23 00 00 GUIDELINE INTENT . 223 05 00 COMMON WORK RESULTS FOR HVAC . 623 05 13 COMMON MOTOR REQUIREMENTS . 1023 05 19 METERS AND GAGES FOR HVAC PIPING . 1323 05 23 GENERAL-DUTY VALVES FOR HVAC PIPING AND EQUIPMENT . 1523 05 29 HANGERS AND SUPPORT FOR HVAC PIPING AND EQUIPMENT . 1723 05 48 VIBRATION CONTROLS FOR HVAC PIPING AND EQUIPMENT . 1923 05 53 IDENTIFICATION FOR HVAC PIPING AND EQUIPEMENT . 2023 05 93 TESTING, ADJUSTING AND BALANCING (TAB) FOR HVAC . 2123 07 00 HVAC INSULATION . 2223 08 00 COMMISSIONING OF HVAC . 2523 09 00 INSTRUMENTATION AND CONTROL FOR HVAC . 2623 21 13 HYDRONIC PIPING . 3423 31 13 HVAC DUCTWORK . 3623 34 23 HVAC POWER VENTILATORS . 3823 37 13 DIFFUSERS, REGISTERS AND GRILLS. 3923 41 00 PARTICULATE AIR FILTERATION . 4023 73 13 MODULAR INDOOR CENTRAL STATION AIR HANDLING UNITS . 41DIVISION 23 HEATING, VENTILATING & AIR CONDITIONINGPAGE 1 OF 43
UNIVERSITY OF SOUTH FLORIDADESIGN AND CONSTRUCTION GUIDELINESSECTION 23 00 00 GUIDELINE INTENT1.1GENERAL REQUIREMENTSA. This division serves as a design and construction guideline for the ProfessionalArchitect/Engineer (A/E) and Contractors performing mechanical services at the University ofSouth Florida. This guideline is intended to establish the Universities standard of quality andis not a specification. The A/E shall develop the permit and construction documents inaccordance with the intent of the guideline and as necessary to comply with the given projectscope and/or program.B. In some instances, a product is named to represent a minimum acceptable quality standard asa basis for the A/E. The intent is for the A/E to specify/schedule not less than threemanufactures/ models based on similar style, appearance & performance characteristics of thenamed product.C. This guideline lists minimum material quality standards. Materials not contained here-in shallbe selected by A/E based on application and where code allows.D. Substitution requests shall be in writing to the USF-Project Manager (USF-PM). Notification ofsubstitution acceptance will be in writing; otherwise, the substitute is not accepted.E. A/E shall provide all ventilation calculations on the drawings submitted as part of the projectpermit and construction documents. Ventilation airflow calculations and design plans shall beprovided by a Florida licensed professional engineer as per Building Code Administration(BCA). All final calculations shall be submitted to the BCA and USF Mechanical Engineer forreview and permit. Calculations shall include all engineering assumptions, occupancyclassifications, occupancy values, room areas, rate values, etc. as part of the ventilationcalculations scheduled on drawings.F. Renovation of existing facilities shall require A/E to evaluate the existing associated HVACsystems and controls to determine if the equipment is in good condition and suitable to bereused in the renovation (i.e.; air-handlers, cooling and heating coils, VAV boxes, controlvalves, airflow and ventilation quantities and quality of the air). At a minimum, the A/E shallvisit the project site to inspect the HVAC system to observe the basic condition of the majorHVAC system components and control system. The A/E shall evaluate the Pre-Test andBalance report and accompanying site observations identify any scope that may need to beincluded in the renovation as necessary for proper HVAC system operation. All relevantobservations and recommendations shall be reported in writing to the USF FacilitiesManagement (USF-FM) and USF Mechanical Engineer.1.2DESIGN CRITERIAA. Professional Engineer shall provide Contract Documents prepared in accordance with 61G15,Florida Administrative Code.B. Requirements of the latest revision of the USF Cost Containment Guide (CCG), Florida BuildingCode (FBC), FBC Mechanical Code, FBC Energy Conservation Code, FBC Plumbing Code,and FBC Fuel Gas Code must be met.C. Appropriate American Society for Testing and Materials (ASTM), American National StandardsInstitute (ANSI), Underwriters Laboratory (UL), American Society of Mechanical Engineers(ASME) and National Fire Protection association (NFPA) standards must be met and specifiedfor materials.D. The A/E is responsible for developing, documenting, and promoting technical discussion ofproposed systems early in the project design phase. Early submittals are to include narrativetechnical discussion of system types, materials, and controls; including options, advantages,disadvantages, relative costs, and architect/engineer recommendations.E. USF has invested into very energy efficient central chilled water and hot water systems to servethe campus. As such, the A/E shall utilize the Central Campus Chilled Water and Hot WaterSystems as a basis for the project HVAC design. Other system types including directexpansion (DX) are not allowed unless an exception is requested and approved by USF-FM.In order to obtain approval, the request shall be accompanied by a Life Cycle Cost Analysis(LCCA) building energy calculations showing the life cycle cost benefit to USF for the requestedDIVISION 23 HEATING, VENTILATING & AIR CONDITIONINGPAGE 2 OF 43
UNIVERSITY OF SOUTH FLORIDADESIGN AND CONSTRUCTION GUIDELINESsubstitution. Refer to the Article 3 (Technical Applications), USF Professional ServicesGuideline (PSG) for the substitution request and submission requirements.F. During the early concept/design phase, the A/E shall establish the project chilled water and hotwater load for the project and review these loads with USF-FM in order to determine that thecentral plant capacities are satisfactory to support the additional loads. If additional plantcapacity and/or distribution infrastructure are necessary, they should be included as a basicpart of the project scope.G. The A/E shall ensure that all major decisions regarding system types, materials, and controlsare determined and agreed to by owner/user by the end of design development phase; anddocumented in the design development submittal. Costs are to be included in the A/E's designdevelopment estimate of construction cost.H. The A/E shall utilize an approved version of either Trane Trace, Carrier HAP or other preapproved whole building 8760 hour simulation software for design modeling and performingLife Cycle Cost Analysis (LCCA) building energy calculations. The economic feasibilityanalysis shall include all project cost over a 25 year life cycle payback analysis. Savingestimates to include maintenance/operations costs as controls integration is required forfeedback and monitoring. All project costs, testing, equipment, controls, etc., and maintenancecosts shall be included in the economic feasibility analysis calculations. The LCCA shall beused as a basis for making specific equipment selections including Energy RecoveryEquipment where applicable on project. The LCCA shall include: installed equipment cost,maintenance and operating cost as a basic part of the feasibility analysis. The A/E shall providethe completed model in electronic file to the owner at the end of the design phase. Refer tothe USF Professional Services Guide (PSG) for additional LCCA requirements.I. Engineering Assumptions1. INDOOR DESIGN CONDITIONS (by season): Temperature, relative humidity. Cooling:75 F / 50 % RH. Heating: 70 F.2. OUTDOOR DESIGN CONDITIONS (by season): Temperature, humidity, wind directionand velocity. Note: Florida may be defined as a humid climate. See American Society ofHeating, Refrigerating and Air-Conditioning Engineers (ASHRAE) FundamentalsHandbook (latest year). Cooling: 92 F DB / 77 % CWB. Heating: 36 F.3. Cooling coil design selections shall be based on 45 F coil entering temperatures and 15 F water temperature rise, producing a nominal leaving air temperature of 52 F off the coil.Hot water coil design selections shall be based on 160 F coil entering temperatures and50 F water temperature rise, producing a nominal leaving air temperature of minimum 85 F off the coil. Design pressures for distribution shall be 200 psi. A/E shall notify USF-FMif the project conditions require any deviations from these values.4. Condenser water design pressures shall be determined by the A/E.5. A/E shall model the HVAC system based on anticipated occupancy values for the givenoccupancy classification and activities performed for each type of space in the building.7. A/E shall model the HVAC system based on actual electrical load for lighting andmiscellaneous equipment anticipated to be used in occupied spaces.8. A/E shall model the HVAC system based out of the ordinary or special thermal andmoisture loads anticipated to be used in occupied spaces.9. Minimum outdoor air volume shall be calculated as required by FBC-Mechanical Ventilationor provide an ASHRAE 62 (latest edition) Alternative with appropriate Addenda.a. The Ventilation Rate Procedure (VRP) as described in FBC-Mechanical is aprescriptive procedure in which outdoor intake rates are determined based on spacetype application, occupancy level and floor area.b. The alternate method in ASHRAE 62 is the Indoor Air Quality method in which outdoorintake rates and other system design parameters are based on an analysis ofcontaminant sources, contaminant concentration targets and perceived acceptabilitytargets. This method is not recommended for most applications on campus.c. Class of air assumptions for exhaust and recirculation air streams.J. The overall building envelope shall be positively pressurized relative to the outdoor airpressure. The HVAC design goal shall maintain a proper balance of entering and exhaustingDIVISION 23 HEATING, VENTILATING & AIR CONDITIONINGPAGE 3 OF 43
UNIVERSITY OF SOUTH FLORIDADESIGN AND CONSTRUCTION GUIDELINESair-streams in order to maintain an indoor building pressure at or above 0.02 inches of watercolumn.K. Variable Air Volume (VAV) System designs should include demand-control ventilation (DCV)and shall have sufficient sensor coverage in the air-conditioned zones and large rooms forIndoor Air Quality (IAQ) to implement this strategy and as required for compliance with theFBC–Energy Conservation. The control system shall maintain the system ventilation flowrateas necessary to satisfy the proper IAQ. The VAV air-handlers shall include outside air volumedampers and Return control dampers of the quality as referenced in Section 23 09 00Instrumentation and Control for HVAC.J. Laboratory HVAC1. Building spaces with fume hoods and animal holding facilities typically are prohibited bycode and good practice from recirculation of air conditioning air: 100% outside air isrequired. Clean room "class" per ASHRAE must be determined and documented. Since100% outside air systems and other special systems are expensive to build, operate andmaintain, and since the size and complexity of the systems create ample opportunity fordesign, contract, construction, initial start-up and noise problems, it is critical that thedetailed design basis and costs be established and documented in early design submittals.2. All 100% outside air units shall be equipped with preheat coils.3. The A/E shall design exhaust systems as necessary to meet or exceed the coderequirements for laboratory spaces in accordance with NFPA 45.4. Air exhausted from chemical fume hoods and other special local exhaust systems shall notbe recirculated.5. Energy conservation devices that could result in recirculation of exhaust air or exhaustedcontaminants shall not be used unless designed in accordance with American NationalStandards Institute / American International Health Alliance (ANSI/AIHA) Z9.5,“Nonlaboratory Air”, or “General Room Exhaust,” Laboratory Ventilation.6. Air exhausted from laboratory work areas shall not pass unducted through other areas.7. Air from laboratory units and laboratory work areas in which chemicals are present shallbe continuously discharged through duct systems maintained at a negative pressurerelative to the pressure of normally occupied areas of the building.8 Positive pressure portions of the lab hood exhaust systems (e.g., fans, coils, flexibleconnections, and ductwork) located within the laboratory building shall be sealed airtightor located in a continuously mechanically ventilated room.9. Chemical fume hood face velocities and exhaust volumes shall be sufficient to containcontaminants generated within the hood and exhaust them outside of the laboratorybuilding.10. The hood shall provide containment of the possible hazards and protection for personnelat all times when chemicals are present in the hood.11. Special local exhaust systems, such as snorkels or “elephant trunks,” shall have sufficientcapture velocities to entrain the chemical being released.12. Canopy hoods shall not be used in lieu of chemical fume hoods.13. Only Class II, Type B2 biological safety cabinets listed by National Sanitation Foundationas meeting National Sanitation Foundation / American National Standards Institute(NSF/ANSI) 49, Class II (Laminar Flow) Biosafety Cabinetry, shall be permitted to be usedin lieu of chemical fume hoods, as determined by a qualified person.14. Laminar flow cabinets shall not be used in lieu of chemical fume hoods.15. Air exhausted from chemical fume hoods and special exhaust systems shall be dischargedabove the roof at a location, height, and velocity sufficient to prevent re-entry of chemicalsand to prevent exposures to personnel.16. Fume Hoods shall be variable position sash type. Two position sash fume hoods are notacceptable. A/E shall review fume hood selections, safeties and control integrationfeatures with USF Mechanical Engineers prior to finalizing design concepts.K. Janitor Closets1. Designated use areas including housekeeping, custodial rooms, laundry areas, etc. shallcomply with the following requirements:DIVISION 23 HEATING, VENTILATING & AIR CONDITIONINGPAGE 4 OF 43
UNIVERSITY OF SOUTH FLORIDADESIGN AND CONSTRUCTION GUIDELINESa. Provide minimum exhaust rate of 1.0 cfm/sf and stated pressure differential, with noair recirculation. The pressure differential with the surrounding spaces must be at least0.02 inches of water gauge on average and 0.004 inches of water at a minimum whenthe doors to the rooms are closed.b. Self-closing doors on all spaces outlined above.c. Deck-to-deck partitions or hard-lid ceilings. Joints shall be sealed.1.3DRAWING REQUIREMENTSA. Plans, sections, and isometric drawings shall be prepared for the required HVAC systems.B. Drawings shall detail mechanical rooms and include section cuts in all directions as necessaryto convey clearly all pipe elevations, crossings and the equipment connections/locations.Mechanical room minimum scale shall be 1/4 inch 1 foot - 0 inch Drawings shall show locationof pipes, electrical equipment, drains, hose bib, etc. All equipment service clearances shall bedimensioned. Detail air handlers including adequate number of sections, and coil and filterremoval clearances, and access (including size) for coil cleaning, etc. Provision shall be madefor shaft removal.C. Drawings shall include detailed equipment layouts and shall show dimensions: equipment,clearance spaces, inertia bases, housekeeping pads, drains, invert level for all piping, detail ofpipe welds, etc.D. Drawings shall include flow diagrams, system descriptions and a piping and instrumentationdiagrams detailing all piping, equipment, instruments, instrument loops, control interlocksInterface for class/material change, annunciation inputs, control relays, manual switches,indicating lights, etc.E. The flow diagrams shall show all equipment, names, and equipment tag names, all valves, allinstruments/controls, pipeline identification, valve identification, all line size transitions,direction of flow, interface for class/material change, annunciation inputs, control relays,manual switches, indicating lights, etc.F. System description shall include basis of design, operating modes (start-up, normal, shut down,emergency, etc.), description and performance ratings of major equipment, control conceptsand control sequence.G. Flow diagrams shall include all major equipment, capacities or ratings, names and identificationnumber, bypass and recirculation lines, control valves, valves required for routing for all modes,pipe sizes, and connection to other systems.H. Drawings shall include detailed pipe support drawings. Pipe support drawings shall include alldimensions, materials, fabrication procedures, fastening methods, pipe saddles, etc.I. Drawings shall include detailed equipment connections and shall show all pipe/sizes dielectricunions or flanges, line-size transitions, vibration isolators, strainers, isolating valves, controlvalves, and instruments including gage cocks, air vents including isolating valves; drainsincluding isolating valves, etc.J. Drawings shall include detailed equipment layouts and shall show dimensions for equipment,clearance spaces inertia bases, housekeeping pads, Drawing shall also include location ofdrains, invert level (bottom or top of pipe) for all piping shown on drawings. Detail of pipe weldsshall be shown on drawings.K. Drawings shall indicate pipe size vs. insulation thickness. Detail of pipe insulation shall includeK-Value, method of installation, vapor banner details, insulation shield detail (where required).END OF SECTION 23 00 00DIVISION 23 HEATING, VENTILATING & AIR CONDITIONINGPAGE 5 OF 43
UNIVERSITY OF SOUTH FLORIDADESIGN AND CONSTRUCTION GUIDELINESSECTION 23 05 00 COMMON WORK RESULTS FOR HVACPART 1 – GENERAL1.1PERMITS AND INSPECTIONSA. Follow USF Building Code Administration (BCA) requirements for permitting and schedulinginspections. Coordinate with USF BCA department.B. Minor Projects: Contractor is responsible for all permitting and inspecting fees.C. Major Projects: Coordinate with USF-PM for responsible party for permitting fees.D. Minor Projects with USF approved Construction Manager (CM): Coordinate with USF-PM andassigned CM for responsible party for permitting fees.E. Obtain and adhere to the Universities Hot Work Permit for each instance in accordance withthe BCA requirements.1.2COORDINATIONA. Visit the site included in the scope of work to ascertain existing conditions. Verify all dimensionsand locations before proceeding with work in the area and prior to purchasing equipment.B. Review and coordinate between all construction documents, all project specifications, and allsections in USF Design and Construction Guidelines (DCG). Notify USF-PM of conflicts ordiscrepancies prior to proceeding with work.C. Locate all underground utilities required by the Sunshine Law prior to proceeding with work.Contact USF-PM to obtain latest USF Campus Utilities Map for the area in scope of work priorto proceeding.D. Coordinate with USF-PM, USF Parking and Transportation Services (USF-PTS), and USFPolice Department (USF-UPD) for required lane closures and parking spaces closuresminimum 72 hours prior to closures. Contractor is responsible for all closure barriers and signssubject to USF review and approval.E. Isolation of Existing Utilities: Contract drawings shall include general notes requiringContractor to coordinate and schedule any and all work impacting existing facilities with theUSF PM at a minimum of 2 weeks prior to the anticipated work. Utility isolation valves locatedin manholes on site or in existing buildings shall only be exercised by USF FacilitiesManagement-Operations (FM-OPS) personnel. In many instances, underground isolationvalves have not been able to close-off bubble tight. The contract documents shall include acontingency plan to test the valves prior to cutting into the system. If the valves do not holdadequately to allow Contractor to perform the tie-in, the USF PM shall be notified immediately.1.3SUBMITTALSA. Submit one electronic copy of HVAC Submittals as a single bookmarked pdf. Include a tableof contents, bookmark/tab manual based on specification chapters or sections.1.4SITEA. All existing utilities shall remain in place unless otherwise noted on the contract documents.B. Contractor shall restore back to original installation primary gear, primary feeders, utilities,irrigation, etc. damaged by the contractor in the area of demolition or construction.C. Provide an erosion control plan addressing prevention, control, and abatement of waterpollution to USF-PM for approval prior to proceeding with work.D. Safety fencing shall be neon green. Orange or black safety fencing shall not be used.E. Conduit trenches shall be backfilled completely to provide safe crossing by the end of workdayor whenever the work zone becomes inactive.F. Maintain access to side streets, drives, and sidewalks at all times during construction.G. Existing pedestrian/sidewalk lighting and roadway lighting shall remain operational during allphases of the construction until new lighting is energized.H. Construction Sites: Provide protective barriers around open HVAC trenches manholes. USFshall have clear vehicle access to these items at all times during construction.I. HVAC manholes: Provide 10 feet square barricade around manhole cover. Manhole covershall be accessible to USF at all times. Remove construction debris such as dirt, sod, groundcover, etc.DIVISION 23 HEATING, VENTILATING & AIR CONDITIONINGPAGE 6 OF 43
UNIVERSITY OF SOUTH FLORIDADESIGN AND CONSTRUCTION GUIDELINESJ.Temporary services protective barricades shall allow 3 feet clearance on sides and rear (orrequired by code if greater), and 5 feet clearance in front of equipment.K. No construction materials or construction tools shall be stored within the protective barricades.L. No construction vehicles or personal vehicles shall be parked over manhole covers.M. Project site design and final site constructed conditions shall include clear vehicle access to allabove mentioned equipment for maintenance.N. Fenced Construction Sites: An access point agreed to by USF-PM and FM-OPS departmentshall be provided to USF. Chains shall have USF Standard 2000 Padlock and site contractorpad lock daisy chained. Project is responsible to provide the USF Standard 2000 Padlock,coordinate with USF-PM and FM-OPS department.O. Areas where work is performed shall be kept clean of debris and materials and shall be cleanedat the end of each work day. Contractor is responsible to secure all tools and materials at alltimes.P. Remove existing equipment and materials, etc, identified to be removed on plans. Equipmentremoved should be offer to USF to be kept as spares. If USF elects to not keep equipment asspare, the Contractor shall remove and dispose of properly. Equipment disconnected orabandoned shall be removed by the Contractor and disposed of properly.Q Provide Tree protection for any tree that may be located within the project construction site ornear the lay-down or designated contractor parking area. Parking and Lay-down areas shallbe located outside the drip edge of trees. If the project scope impacts within the drip edge oftrees in the construction site, the trees shall be properly protected with barriers and/or properroot pruning by qualified arborist. For additional Tree Protection information refer to USF-FM.1.5WARRANTYA. Contractor shall provide minimum one (1) year warranty for all labor and materials, whetherincluded or not included by equipment manufacturers. Contractor shall replace defectivematerials during the first year of warranty without additional compensation from USF.B. Manufacturer warranties greater than one (1) year, or where lengthier warranties are requiredin the project documents, or in USF Design and Construction Guidelines (DCG) shall extendthe standard one (1) year warranty.C. Warranty period shall begin on date of substantial completion.1.6MISCELLANEOUSA. USF Furnished Equipment:1. Contractor shall be responsible for receipt from USF, storage after receipt, and installationif required.2. Verify equipment connection requirements prior to rough-in and ordering materials.3. Install equipment in accordance with manufacturer instructions.4. Maintain equipment until project is turned over to USF at Substantial Completion.B. A/E for new construction and renovations or contractor for miscellaneous additions shalldemonstrate that the existing services have the required additional capacity and canaccommodate the load being added.C. A/E for new construction and renovations or contractor for miscellaneous additions shalldemonstrate that the existing services are at adequate depth to accommodate the minimumslope requirements for tie-in of new to existing services.1.7PROJECT CLOSE OUTA. Submit one electronic copy and one hard copy of Operations Manual as a single bookmarkedpdf. Include a table of contents, bookmark/tab manual based on specification chapters orsections.B. Provide record documents per USF-FM requirements. Coordinate with USF-PM. Recorddocuments shall include updated as-built drawings. Submit working CAD drawings (with boundXref files) on disk or other approved memory storage device include separate folder or diskincluding pdf copies of each as-built drawing. Filenames shall include drawing number asreference.DIVISION 23 HEATING, VENTILATING & AIR CONDITIONINGPAGE 7 OF 43
UNIVERSITY OF SOUTH FLORIDADESIGN AND CONSTRUCTION GUIDELINESPART 2 – PRODUCTS (Not Used)PART 3 – EXECUTION3.1FIELD QUALITY CONTROLA. Existing Utilities (CW, HW, Potable Water, Electrical, Communications, etc.): The A/E shallsurvey the existing site conditions and review current utility plans with USF-FM to evaluateneeds for the project and locations below grade to avoid conflicts.B. Do not operate air handling units (AHU’s) during building construction phases unless filtrationmedia with a Minimum Efficiency Reporting Value (MERV) of 8 are used at each return air grill,as determined by ASHRAE 52 to protect ductwork during construction.C. Seal all return air openings with plastic and close all return air dampers during construction.Protect fan motors, switches, equipment, fixtures and other items from dirt, rubbish and foreignmatter. Do not operate AHU’s if the building construction operations such as sanding drywallor any operations that may potentially contaminate the mechanical systems. Do not operateAHU’s if the building is not clean or if dust can enter coils or fan housing and ductwork systems.Do not operate AHU’s if the building is not positively pressurized. Do not operate exhaust fansif their operation creates a negative building pressurization.D. Monitor and maintain all filters, filter media and all related items during construction and replaceall filtration media prior to occupancy prior to occupancy with specified filters with a minimumvalue of a MERV 8. Minimum MERV 13 filters are required to be installed in all air-handlers atSubstantial Completion. Refer to Section 23 41 00, Particulate Air Filtration for additionalrequirementsE. The use of sweeping compounds and cleaning products is required during construction cleanup on a daily basis and a complete detailed final cleaning will be performed by a qualifiedsubcontractor prior to HVAC final start up and commission to ensure a clean environment priorto the occupancy of the building. This will be required at the completion of each phase andstart up prior to building turnover and occupancy.F. Source Control: Use of materials such as adhesives, sealants, and paints shall be low VOCtype and comply with Leadership in Energy and Environmental Design (LEED) IEQ credit 4.1and 4.2. Please make note that no material will be allowed onsite without prior approval andall material will be inspected and verified during the course of this project.G. Pathway interruption: During construction, isolate areas of work to prevent contamination ofclean or occupied spaces. Provide temporary barriers that contain the construction area.H. Housekeeping: Keep interiors of duct and pipe systems clean and free from dirt, rubbish andforeign matter. Prevent dust, debris and foreign material from entering the piping and ductwork.Remove temporary labels, stickers, etc. from fixtures and equipment. Do not removepermanent nameplates, equipment model numbers, etc. Remove debris, rubbish, left overmaterials, tools and equipment from work areas and site. Daily clean-up is required and willbe strictly enforced. Final acceptance shall not be approved until site is cleaned.I. Scheduling: All construction activities to be coordinated to minimize or eliminate disruptions ofoperations in occupied portions of the buildings.3.2CO
facilities management 2020- design & construction edition: march 23. 4202 e. fowler avenue, opm 100 tampa, florida 33620-7550 phone: (813) 974-2845 website: usf.edu/fm-dc division 23 heating, ventilating & air conditioning page 1 of 43 design & construction guidelines division 23 heating, ventilating & air conditioning (hvac) division 23 heating, ventilating & air condiitoning (hvac)
mechanical Heating Ventilating and Air Conditioning (HVAC) system. In the following sections, specific systems are referred to by a general description and will comprise the elements listed in Table 3-2. In most cases, the systems included below will provide heating, cooling and ventilating with exceptions noted.
FOR INDUSTRIAL HEATING OF AIR AND GAS UP TO 800 C (1470 F) Traditional heating cassettes are commonly equipped with tubular heating elements as the heating source. The design of these elements limits the maximum reachable air/gas temperature to about 600 C (1110 F). With the state of art heating element design used in our Kanthal heating .
R-Series Direct-Fired Heating & Ventilating AA-Series Direct-Fired Heating & Ventilating V-Series Direct-Fired Make-Up Air Value CH-, DH- & APD-Series Space Heaters Coil & Evaporative Cooling Systems 5496 North Riverview Drive Kalamazoo, MI 49004 Phone: (800) 804-4000 Fax: (269) 382-5291 01/06 www.absolutaire.com Represented by:
The Ventilating Valve Type 595 and Ventilating and Bleed Valve Type 591 are primarily used where containers and pipes have to be aerated and/or vented. The float in the type 595/591 opens the valve if the level of the liquid falls. If the level of the liquid rises, the float is raised and pressed a
"V" in HVAC describes ventilation. This can be ventilating the facility using ductwork or ventilating a kitchen using ductwork and fans with a hood. It can also refer to combustion air or the air needed to have combustion for various heating systems. "AC" in HVAC refers to air conditioning that comprises of 3 main methods - mechanical
District heating often involves a heating substation installed in the basement of a building. It receives the heating carrier from a heat generating station and via a heat exchanger makes it available for the building heating system. An individual heating system in many cases consists of a boiler heating water up to required temperature for
2016 NHDOT Division 600 Construction Manual Link to: Division 100 Division 200 Division 300 Division 400 Division 500 Division 600 Division 700 Division 800 Division 900 Master Table of Contents 600-6 The following table list design requirements for 3750-D RCP pipe. Design Requirements For Reinforced Concrete Pipe (3) .
Clinical Excellence Awards’ (CEAs) are important to acknowledge the work of senior NHS consultants and academic GPs who make a substantial impact on patient care. The practice of medicine and dentistry is demanding and often requires working outside formal contracted arrangements. ACCEA recognises and rewards those clinicians who perform at the highest level, with national impact. These are .
