|
I
<br />HVAC Basis of Design - Envelope Components - FEC
<br />Building Envelope Components shown on This Report are Based on Drawings that are Data Linked via 3D Smart CAD HVAC Floor Plan(s) Smart Figures. Any
<br />Changes to the Building Envelope Component Types, Component Amounts, Interior Room Layouts, Building Orientation (North Arrow Compass), Building
<br />Usage, etc. Must be Communicated to the Deis ner.
<br />g1 g
<br />Conduct an Owner Survey to Establish the Listed Items on this Summary Page Meets the building Owner's Needs.
<br />See "Project Report" for Building Site Climatic Conditions and Indoor Design Conditions.
<br />See "Manual D Duct Size Data" Report(s) and "Manual S Equipment Selection" Report(s) for More Detailed Information.
<br />See Energy Forms for Minimum Requirements of all Items.
<br />Rhvac - Residential & Light Commercial HVAC Loads
<br />Elite Software Development, Inc.
<br />Energy Code Consulting, Inc. Parcel
<br />0
<br />11-26-21-0010-11300-0060 1483 NE
<br />Lakeland, FL 33803
<br />Page 8
<br />Total Building Y Summar Loads
<br />Component Area Sen
<br />Lat Sen Total
<br />Description Quan Loss
<br />Gain Gain Gain
<br />OP4025SH: Glazing -Two Pane Low E Window Operable 152 1,643
<br />0 2,742 2,742
<br />Single Hung, ground reflectance = 0.23, outdoor
<br />insect screen with 50% coverage, medium color
<br />blinds at 450 with 25% coverage, U-value 0.4, SHGC
<br />0.25
<br />FD4025: Glazing -Two Pane Low E Window Glass Door, 40 432
<br />0 1,190 1,190
<br />ground reflectance = 0.32, medium color blinds at
<br />450 with 25% coverage, U-value 0.4, SHGC 0.25
<br />FX4025: Glazing -Two Pane Low E Window Fixed, 12 130
<br />0 260 260
<br />ground reflectance = 0.23, medium color blinds at
<br />450 with 25% coverage, U-value 0.4, SHGC 0.25
<br />SGD4025: Glazing -Two Pane Low E Window Sliding 40 432
<br />0 379 379
<br />Glass Door, ground reflectance = 0.32, medium color
<br />blinds at 450 with 25% coverage, U-value 0.4, SHGC
<br />0.25
<br />BW4: Wall -Block, Custom, Block Wall any type R-4 1361 5,253
<br />0 3,951 3,951
<br />continuous insulation with any finish(es), U-value
<br />0.143
<br />HVA38-ad: Roof/Ceiling-Under Attic with Insulation on 1483 1,039
<br />0 2,120 2,120
<br />Attic Floor (also use for Knee Walls and Partition
<br />Ceilings), Custom, Hot Vented Attic R-38 Insulation,
<br />dark asphalt, U-value 0.026
<br />HVAI9AKW: Roof/Ceiling-Under Attic with Insulation on 36 48
<br />0 65 65
<br />Attic Floor (also use for Knee Walls and Partition
<br />Ceilings), Custom, Hot Vented Attic R-19 Attic Knee
<br />Wall, U-value 0.049
<br />FSOGO: Floor -Slab on grade, Custom, Slab On Grade R- 175 5,575
<br />0 0 0
<br />0 edge insulation, any finish, U-value 1.18
<br />_ _
<br />Subtotals for structure: 14,552
<br />0 10,707 10,707
<br />People: 4
<br />920 1,200 2,120
<br />Equipment:
<br />590 2,139 2,729
<br />Lighting: 0
<br />0 0
<br />Ductwork: 3,196
<br />1,093 4,508 5,601
<br />Infiltration: Winter CFM: 0, Summer CFM: 0 0
<br />0 0 0
<br />Ventilation: Winter CFM: 60, Summer CFM: 60 1,776
<br />2,162 1,052 3,214
<br />AED Excursion: 0
<br />0 497 497
<br />Total Building Load Totals: 19,523
<br />4,765 20,103 24,868
<br />Check Figures
<br />I
<br />Total Building Supply CFM: 1,000 CFM Per Square ft.:
<br />0.674
<br />Square ft. of Room Area: 1,483 Square ft. Per Ton:
<br />673
<br />Volume (ft3): 13,931
<br />Building Loads
<br />Total Heating Required Including Ventilation Air: 19,523 Btuh 19.523 MBH
<br />Total Sensible Gain: 20,103 Btuh 81 %
<br />Total Latent Gain: 4,765 Btuh 19 %
<br />Total Cooling Required Including Ventilation Air: 24,868 Btuh 2.20 Tons
<br />(Based On 76% Sensible
<br />Capacity)
<br />Notes
<br />71
<br />Rhvac is an ACCA approved Manual J, D and S computer program.
<br />Calculations are performed per ACCA Manual J 8th Edition, Version 2, and ACCA Manual D.
<br />All computed results are estimates as building use and weather may vary.
<br />Be sure to select a unit that meets both sensible and latent loads according to the manufacturer's performance data at
<br />your design conditions.
<br />HVAC SYMBOLS - FLORIDA BUILDING CODE 7TH EDITION (12/31/2020 - 12/30/2023)
<br />AHU =Air Handlin Unit
<br />g
<br />BP _ ass Dam er-
<br />Bypass P
<br />CFM = Cubic Feet per Minute
<br />El
<br />Supply Air Plenum
<br />Exhaust Fan EF-1 or as
<br />Noted
<br />®
<br />Ceiling Register (1
<br />Way Throw Shown)
<br />O
<br />Equipment Controls
<br />CU = Condensing Unit
<br />EF = Exhaust Fan
<br />MUA = Make Up Air
<br />PKG = Package Unit
<br />v
<br />&
<br />Wall Register 2
<br />Way Throw Shown)
<br />------------
<br />Dram Lines
<br />RB/T = Return Air
<br />_ -
<br />SB/T Supply AirCondensate
<br />SEER = Seasonal Energy Efficiency Ratio
<br />SF = Supply Fan
<br />®
<br />D Q
<br />Floor Register (2
<br />Way Throw Shown)
<br />49` .,._-•
<br />Refrigerant and Control
<br />Piping
<br />SP = Static Pressure
<br />T/A =Transfer Air
<br />V!A =Ventilation Air
<br />ZD = Zone Damper
<br />._, a
<br />U,
<br />T Undercut Door
<br />Typical Interior Doors
<br />0
<br />Return Air Plenum
<br />�_' I I Z=::]
<br />Horizontal Air Handler
<br />Mount from Structure
<br />• •
<br />0; ` I:,
<br />Intake Vent
<br />Roof/Exterior
<br />E
<br />Floor or Ceiling Filter
<br />Grille
<br />'
<br />Vertical Air Handler
<br />On Stand or Attic
<br />• r
<br />rJ
<br />• . " �, '�
<br />Exhaust Vent
<br />Roof/Exterior
<br />-
<br />4�4]� Ceiling Grille Ducted T/A
<br />1
<br />-J
<br />Branch Duct Volume
<br />Control Damper
<br />jLi
<br />EO: -
<br />Condensing Unit
<br />on Slab, Raised or Roof
<br />44hq-
<br />Wall Filter Grille
<br />err �r
<br />Wall Grille Ducted i A
<br />'A
<br />�
<br />&
<br />0
<br />Ductless Air Handler
<br />Ceiling or High Wall
<br />Mount
<br />&
<br />0 ff
<br />Flexible Ductwork
<br />I
<br />Rectangular Ductwork
<br />- -
<br />% D Efl
<br />Zone / Bypass Air
<br />Dampers
<br />Duct Junction Boxes
<br />I ,a A
<br />Equipment Access
<br />Panel
<br />HVAC
<br />Equipment Selection
<br />EQUIPMENT SCHEDULE
<br />SPLIT SYSTEM HEAT PUMP
<br />AIR HANDLER MARK:
<br />AHU-1
<br />UNIT MANUFACTURER:
<br />AMERICAN STND
<br />UNIT MODEL NUMBER:
<br />TAM9AOA30
<br />UNIT DIMEN H/W/D:
<br />49.9x17.5x21.8
<br />UNIT WEIGHT:
<br />120
<br />CC
<br />SUPPLY PLENUM SIZE:
<br />14.5x14.35
<br />W
<br />o
<br />RETURN PLENUM SIZE:
<br />14.5x17.15
<br />ZZ
<br />MANUAL D DUCT CFM:
<br />1000
<br />=
<br />MANUAL D DUCT TSP :
<br />CAD / GMDD
<br />Ir
<br />Q
<br />SUPPLY FAN H/P :
<br />1/2
<br />BLDG. VENTILATION CFM: 60
<br />MECHANICAL
<br />BLDG. INFILTRATION CFM: 37
<br />NATURAL
<br />UNIT PHASE / HERTZ:
<br />1/60
<br />UNIT VOLTAGE:
<br />208 / 240
<br />HEATER KW:
<br />3.6 / 4.8
<br />AHU + HEAT MOP:
<br />25 / 30
<br />CONDENSER MARK:
<br />CU-1
<br />=
<br />W
<br />_
<br />NOMINAL A/C TONS:
<br />2.5
<br />Z
<br />UNIT MODEL NUMBER:
<br />4A6H5030
<br />0
<br />UNIT VOLTAGE:
<br />208/230/ 1 / 60
<br />Z
<br />O
<br />UNIT MCA / MOP:
<br />17 / 25
<br />UNIT DIMEN H/W/D:
<br />30x357x38
<br />UNIT WEIGHT:
<br />239
<br />MJ DESIGN TEMP: 91
<br />91
<br />92
<br />93
<br />fn
<br />J
<br />TOTAL COOLING KBTUH:
<br />28.9
<br />28.7
<br />28.5
<br />a
<br />SENS. COOLING KBTUH:
<br />22.1
<br />22.0
<br />21.9
<br />Z Z
<br />LAT. COOLING KBTUH:
<br />6.8
<br />6.7
<br />6.6
<br />2
<br />SENSIBLE HEAT RATIO:
<br />0.76
<br />0.77
<br />0.77
<br />TOTAL HEATING KBTUH:
<br />26.4
<br />SEER / HSPF:
<br />15 / 9
<br />FE
<br />a
<br />95/75at75%SHR:TC,SC,LC
<br />27.2 20.41 6.8
<br />CERT. REFERENCE # :
<br />10093618
<br />THERMOSTAT MODEL:
<br />PROGRAM
<br />ALTERNATE BRAND EQUIPMENT CAPABLE OF
<br />NEUTRALIZING BOTH LATENT AND SENSIBLE
<br />to
<br />W
<br />DEMAND'S IS ACCEPTABLE / SEE MANUAL J.
<br />0
<br />VIEW ENERGY FORMS FOR MIN. EFFICIENCIES.
<br />Z
<br />HVAC CONTRACTOR TO PROVIDE EQUIPMENT
<br />J
<br />a
<br />_
<br />TIE DOWN AND INSTALL INSTRUCTIONS +
<br />W
<br />Z
<br />MATCHED EQUIPMENT AHRI RATINGS ON
<br />W
<br />0
<br />SITE FOR FIELD INSPECTORS APPROVAL.
<br />INFORMATION SHOWN ABOVE IS SUBJECT TO
<br />CHANGE I SITE VERIFY EQUIP. DATA PLATE.
<br />LOW / HIGH FAN CAPACITY ADJ. (.98 / 1.02)
<br />UPGRADES SHOWN ON HVAC OPTIONS
<br />HVAC Equipment Shown this Page is for Single Stage Capacity
<br />Selected in Compliance with Manual J 8th Edition Heat Load
<br />Calculation Procedure, Manual D Duct Design and Manual S
<br />HVAC Equipment Selection Procedure as Required by Florida
<br />Energy Conservation Code Section R403.7.
<br />Single Stage Capacity Equipment Can Not be Undersized Below
<br />the Manual J Heat Load Calculations or Oversized by More
<br />Than 15% of the Manual J Heat Load Calculations (or Next
<br />Size Available). See HVAC Basis of Design Notes on This Page
<br />for Code Set HVAC Design Parameters and FECC Codes
<br />FECC403.7.1.1 & FECC403.7.1.2. See Energy Forms for
<br />Minimum Efficiencies Required for this Particular Project to
<br />Achieve a Passing Score.
<br />View HVAC "Options" Drawing for Upgrade to the Oversized
<br />Variable Capacity HVAC Equipment as Allowed by FECC Code
<br />Section Fecc403.7.1.3. Optional HVAC Equipment Shown on
<br />the Options Page Will Require the HVAC Installer to Install
<br />a Larger Duct System as Required for the Increased Airflow
<br />Amount Associated with the Optional Oversized Staged
<br />Capacity Equipment. Contact the Original HVAC Designer
<br />for an Optional Upgrade Design Package.
<br />EQUIPMENT SCHEDULE ax
<br />EXHAUST FAN
<br />FAN MARK:
<br />EF-1
<br />MANUFACTURER:
<br />NUTONE
<br />MODEL NUMBER:
<br />OT-763
<br />FAN TYPE:
<br />CEILING
<br />FAN CFM:
<br />50
<br />TOTAL PRESSURE:
<br />.3
<br />FAN VOLTAGE:
<br />120/1/60
<br />FAN AMPERAGE:
<br />1.6
<br />FAN DIMEN LWH:
<br />8X9X6
<br />DUCT OUTLET SIZE:
<br />4"
<br />DUCT INLET SIZE:
<br />12X11
<br />FAN WEIGHT:
<br />12
<br />NOTES: 1,2
<br />1 = VENT TO EXTERIOR
<br />2 = INTERLOCK WITH LIGHTS or SWITCH
<br />3 = THERMOSTAT CONTROL
<br />4 = INTERLOCK WITH SAME ZONE HVAC
<br />5 = VARIABLE SPEED CONTROLLER
<br />6 = ADJUSTABLE EXTENDED OPERATION
<br />DUCT SIZING: SEE FRBC TABLE M1506.2
<br />RESIDENTIAL 50 CFM MINIMUM // FMC403.3.1.1
<br />HVAC Equipment Selection Shown is Based on Both the
<br />Sensible and Latent Demands. See Recommended Tons.
<br />Total Cooling Tons Shown on the Total Building Summary
<br />Page are Adjusted for the Selected Equipment's Sensible
<br />Heat Ratio Performance. View HVAC Equipment Schedule
<br />"Manual S" Data Section for Site Specific Performance.
<br />Energy Code Consuhing's Schematic to the HVAC Design Procedure
<br />Construction �.
<br />Details
<br />FECC 403.21 and FECR 403.7.1
<br />Manual J I ACCA 183
<br />Room Heat Load
<br />Loads by Thermal Zone
<br />of HVAC
<br />Type of Duct System
<br />HVAC Equipment I Type
<br />HVAC Equipment
<br />Selection 17C..3.7.1
<br />Manuals
<br />FP!_,_, oPressure Drop
<br />Handlerrmance� AHU Device
<br />FECC 403.2.9.5 antl FMC 603.2
<br />Manual D and T
<br />Duct Sizing
<br />Procedure
<br />FECC 402, 407 plus
<br />FECR 402, 405 and 406
<br />IEnergy Code
<br />Calculations
<br />Duct Fittings
<br />and Geometry
<br />With Greater Efficiencies in Windows. Insulation, etc., the Old School Square Footage 'Guess'in
<br />Determining a Heating and Cooling System is Ridiculous and Forbidden by the Florida Building Code.
<br />Energy Code Consulting uses Mathematically Relevant Data Related to City Specifics, Residential
<br />Compass Orientation, along with each Room's Heat Load Demand that Dictates the HVAC Selection, Duct
<br />Sizing and Air Device Selection used in this Report as Reflected in the above Schematic.
<br />Intelligent CAD Duct Figures and Graphic Manual D Duct Fittings
<br />In the Duct Design Reports, Every Duct Section and Fitting Indicated are Included in the Calculations Via Data Linking to Determine the Most Restrictive Air Path.
<br />Manual D Duct Design Data is Used for Air Handling Equipment Selection.
<br />The Maximum Velocities Used are Based on ACCA Manual D Duct Desiqn.
<br />EL 5 EL 5 _
<br />Duct Velocity
<br />SUPPLY AIR SIDE
<br />RETURN AIR SIDE
<br />'
<br />Shown is Feet Per
<br />FLEX
<br />RIGID
<br />FLEX
<br />RIGID
<br />Minute
<br />EL40 L�
<br />Includes Side, Top or
<br />Peak Tap Plenums
<br />Trunk Duct
<br />600 - 700
<br />700 - 900
<br />600 - 700
<br />600 - 700
<br />-
<br />Main Supply Air Plenums
<br />Branch Duct
<br />600 - 700
<br />600 - 700
<br />600 - 700
<br />400 - 700
<br />5-E
<br />Main Return Air Plenums EL1g
<br />--
<br />' �, I " -
<br />V
<br />C:l
<br />I
<br />2-A 2-D 2-E
<br />EL35.80 EL40-85 EL25-50
<br />4-AA or 4Z
<br />4-AD
<br />EL35 EL80
<br />88•A 6-A3PC
<br />EL6L65 ELIL70-6-65 EL10-20 EL20-35
<br />EL10-115 EL 0-110 ELID-75
<br />Supply Branch Duct Takeoff
<br />Supply Air Register Boxes
<br />Elbows for Supply and Return
<br />Return Branch Duct Takeoff
<br />ftahi.� _,&�
<br />�;�_ �?� ��
<br />Ro a
<br />-?-_"""",L, tii)
<br />[a
<br />_(�7
<br />� -'
<br />EL65 EL80 EL50
<br />13-C 13•A
<br />.03 IWC .03 IWC
<br />Flex
<br />Elbow Trapezoid Triangle
<br />118 ELS 95 11A
<br />ELS•20 EL10-95
<br />10-F
<br />EL35
<br />Supply Trunk Junction Fittings
<br />Intrinsic Branch Duct Damper
<br />Fexible Duct Junction boxes for
<br />Supply and Return
<br />L75
<br />EL75 10-C
<br />EL10
<br />Return Trunk Junction Fittings
<br />1�4�4____:��
<br />%��
<br />12-L 12-R
<br />12 O ELS-10 EL2.5
<br />ELS-10
<br />2-0 2-P 2.0
<br />EL55-100 EL5g-75 EL10-25
<br />121
<br />ELS10
<br />RETURN
<br />RET URN SUPPLY
<br />.03 IWC
<br />45 Degree 90 Degree
<br />SD SE
<br />EL10-30 EL15.40
<br />Supply Branch Duct Takeoff
<br />Converging Transitions for S/A & R/A
<br />Intrinsic Air Side Devices for S/A
<br />and R/A
<br />Return Branch Duct Takeoff
<br />•0�'/�-'���\�\///,.Jp-LYI��
<br />fir/- � �\y��
<br />-r% -",
<br />°o,F"
<br />--✓ ----ie„'J
<br />0
<br />w (,
<br />Vim/
<br />9-0 9-1 9•M
<br />EL15 EL85 EL20
<br />12•H 12-C 12-1
<br />EL15-40 EL20-40 EL10-35
<br />Heater
<br />1"Filter DX Wet Coil
<br />. 11-.48 M/C
<br />.07 IWC 'ON C3
<br />6-N 6-G
<br />EL10 EL30
<br />Supply Trunk Junction Fittings
<br />Diverging Transitions for SiA & Rr'A
<br />Intrinsic Equipment Devices
<br />Return Air Register Boxes
<br />HVAC NOTES - FLORIDA BUILDING CODE 7TH EDITION - EFFECTIVE 12/31/2020 - 1230/2023
<br />COMPLIES WITH THE 7TH EDITION FLORIDA BUILDING, RESIDENTIAL, EXISTING RESIDENTIAL, MECHANICAL AND ENERGY CODES.
<br />Florida Code section abbreviations: FBC = Building, FRBC = Residential, FMC = Mechanical, FEC = Energy
<br />HVAC BASIS OF DESIGN:
<br />These HVAC drawings, HVAC demand calculations and Florida Energy Calculations are based on the architectural construction drawings provided for permit application. This HVAC design incorporates D.O.E. "Right
<br />Size HVAC Design Guide". The HVAC system(s) were based on outdoor design conditions shown in Table 1 A of the 2016 v2.5 ACCA Manual J 8TH edition [MJ8]; cooling season outdoor temperature examples:
<br />Tam a=91 St. Petersbur =92 Orlando=93. The indoor design conditions set b MJ8 and the energy code section FEC302 72 r winter an 7 re summer). p g g y gy c e ( degrees to d 5 degrees su er).
<br />Correctly sized single capacity (one stage of capacity) HVAC equipment is designed tooperate continuously during peak hour design conditions and will have no reserve capacity included to neutralize record breakin
<br />g
<br />outdoor temperatures; unusually low expected indoor temperatures, entertaining large amounts of occupants or any other item not listed on the "Total Building Summary Loads". Peak cooling demand makes up
<br />approximately 15% of the cooling season, the remaining 85% of the cooling season is at "part load conditions" and requires dedicated dehumidification equipment if year-round control of indoor humidity is expected.
<br />View HVAC options drawing, if provided, for optional dedicated ventilating dehumidification equipment (Honeywell DH-90 or Ultra -Air XT150H) as required to monitor and control indoor humidity year-round, view
<br />FEC403.13. May include time -of -day peak hour demand, required cooling capacity for multiple orientations, building demands pie chart, adequate exposure diversity calculations and HVAC system upgrades that
<br />include: dedicated dehumidifier(s), high efficient air filtration and air treatment(s), thermal zone control system, variable capacity HVAC equipment, etc.
<br />When available, view HVAC options drawing for alternate HVAC equipment selection designed to neutralize outdoor weather conditions that can include the highest site recorded outdoor temperature, lower than
<br />75-degree indoor temperature, and occupancy quantities larger than code allowances. View section FEC403.7.1.3 for selection of Variable capacity HVAC equipment. The lowest operating capacity of Variable capacity
<br />HVAC equipment can be no greater than 15% of the MJ8 demand calculations performed at design conditions (or the closest equipment capacity match available that neutralizes both the sensible and latent demands).
<br />The highest capacity of variable capacity HVAC equipment has no sizing limitation. HVAC Contractor must use Manual D duct design procedure for designing the larger duct system associated with oversized variable
<br />capacity equipment factory set at the highest air handler fan speed or adjust the air handler fan "CFM/ton" airflow setting to closely match the code minimum HVAC design CFM's listed.
<br />Using the architectural construction drawings, the following ACCA HVAC Design Manuals and procedures were performed: (1) 2016 v2.5 ACCA Manual J 8TH edition [MJ8] Room -by -Room demand calculations that
<br />quantified the demands for each thermal zone and each conditioned room. (2) The MJ8 calculation results were used to select the HVAC Equipment capacities in compliance with Manual S Equipment Selection
<br />Procedure (3) MJ8 calculation results were used to design the HVAC duct system in accordance with Manual D Duct Design (4) MJ8 calculation results were used to select the supply and return air devices (type, size
<br />and ideal location) in accordance with Manual T room Air Distribution selection procedure (5) Florida Energy Calculations were performed to determine the "meet or exceed" HVAC equipment efficiencies required for
<br />this building to "pass" the Energy Code requirements. Manual ZR was used to determine the thermal zone room grouping (multiple thermostats served from a single HVAC system), optional and/or mandatory
<br />proposed thermostat locations as required by the MJ8 Adequate Exposure Diversity [AED] calculations and building levels served. All above calculations performed are graphically represented within these HVAC
<br />drawings and are specific to this building only.
<br />CONTRACTOR NOTES:
<br />Prior to any HVAC system installation, the HVAC Contractor must verify the constructed building matches the HVAC building exposure diagram, HVAC drawings and Energy Code forms submitted for permit
<br />application. View "Total Building Summary Loads" for a detailed list of building envelope components and building geometry; view the Florida Energy Code forms for additional building envelope and building
<br />information. Building envelope construction practice "semi tight" [blower door tested less than 5.1 ACH/50] is used in the building infiltration calculations, field verify the building envelope (air barrier in contact with
<br />the thermal barrier) fully encapsulates the conditioned space. HVAC Contractor must field verify sealed draft stops exist that are isolating the wall cavities from the exterior and/or hot vented attic spaces. Buildings
<br />with hot vented attic spaces require the air and thermal barriers to be located at the ceiling plane. Buildings with unvented attics or unvented single assembly roofs (flat, shed, pitched, low slope open web flat truss,
<br />etc.) require the air and thermal layer be located at the roof plane. Unvented attics located above conditioned spaces require envelope separation ["attic break walls"] from adjacent attics that are unconditioned spaces
<br />like garages, porches, entries, etc. Attic break walls are required to extend from the top plate of the exterior/partition wall upward to connect to the roof envelope component. Buildings with "sealed" unvented attics
<br />may also require attic gable -end walls, roof soffits and roof truss rim caps to contain air and thermal barriers. Provide ducted dedicated dehumidifier(s) mounted near the roof peak for buildings that contain an
<br />unvented attic space(s) or provide roof envelope component that contains an air barrier with water vapor release at the roof peak. Do not install a cooling system into a building missing a full building envelope that
<br />completely encapsulates the conditioned space.
<br />During construction the HVAC Contractor must notate any modifications or changes to the building room layout, occupancy amount, building use or classification, building compass orientation, building geometry and
<br />building envelope components (materials, types, and sizes), and must communicated those to the original HVAC designer. HVAC Contractor should red -line sketch on these HVAC drawings any proposed field changes
<br />to be made during construction and submit the "as -built red -line sketch" to the original HVAC designer for review and redesign prior to any HVAC installation. Alternate air distribution systems (air duct sizes and air
<br />device sizes) must be equal to free area of the listed size shown; do not exceed a 3:1 aspect ratio on alternate sizes. HVAC Contractor must provide a copy of the HVAC drawings, HVAC calculations (ACCA MJ8, S, D,
<br />T, ZR) and Energy Code forms to the building owner for approval and perform the "building owner survey" as shown in MJ8, Appendix 1, to discuss desired indoor temperatures, air filtration, indoor air quality, year
<br />round moisture control, health issues that require special indoor conditions, interior mounted heat producing equipment (both latent and sensible heat outputs), occupancy amounts above code maximums and any
<br />information not shown on the "Total Building Summary Loads" page shown within these drawings.
<br />CODE REFERENCE SECTIONS:
<br />These HVAC drawings comply with the Florida Building Codes 7th Edition (12/31/2020 - 12/30/2023) sections FBC101.4.2, FBC101.4.6, FBC105.3.1.2, FBC107.3.5 "Mechanical" Plan review criteria. Florida Building Code
<br />sections are referenced on the HVAC Drawings for the HVAC Contractor and Code Officials. HVAC Contractor should reference the code sections prior to fabrication or installation of any HVAC system component.
<br />These HVAC drawings are not intended to show exact detail of every item required to meet the code requirements, view the HVAC isometric details and general notes for code section compliance references. The
<br />proposed duct routing shown is general in nature, field conditions and building structure may dictate the exact mounting configuration of the HVAC system(s), the HVAC Contractor may provide alternate HVAC
<br />construction documents.
<br />1) HVAC installation must comply with the 7th edition Florida Building Codes, Energy Conservation Codes, and Mechanical Codes effective 12/31/2020. Obtain all required permits and inspections per code sections
<br />FBC105, FBC107 and FBC110.
<br />2) Ventilation air provided per FBC1203, FMC401.2 and FEC403.6. This design includes mechanically controlled ventilation air for buildings that contain a semi tight envelope and a forced air duct system. Building
<br />interior pressurization is accomplished by a ventilation air duct, manual air volume control damper and motorized damper. In cases when the ventilation rate is satisfied by the building infiltration rate, no ventilation
<br />air duct is shown. Ventilation rates may also be satisfied using properly sized windows to the outdoors per FBC1203.5 that are manually operated by the occupant. For large buildings with few occupants, the building
<br />envelope infiltration rate may satisfy the minimum ventilation rate required. For small buildings with many occupants, the required ventilation air duct is routed to an approved exterior location, view "Total Building
<br />Summary Loads" page and hvac equipment schedules for ventilation or infiltration rates. A blower door test per FEC402.4.1.2 must be performed post construction to quantify the building's ACH50 tested leakage rate.
<br />ACH50 test results less than 3.0 require mechanically induced ventilation air. The ventilation air motorized damper is dual controlled by both "run-time" and "manually on" control cycles, HVAC Contractor may also
<br />provide a fan cycler to provide ventilation air during part -load conditions. Interlock the ventilation air damper motor with the air handler fan motor for "run time" cycling during heating or cooling. Use thermostat "fan
<br />on" to provide ventilation air only when the outdoor conditions are favorable (low temperature and low humidity). HVAC options page for dedicated ventilating dehumidifier equipment interlocked with the ventilation
<br />air damper motor for year-round controlled ventilation and dehumidification.
<br />3) Coordinate location of all HVAC equipment, piping, ducts, fans, air devices and building envelope penetrations with the General Contractor and building owner. Proposed HVAC air devices are shown in the ideal
<br />location per Manual T room air device selection procedure, coordinate air device locations to allow for room smoke detector clearances and the building owners desired location. HVAC Contractor must field verify
<br />clearances and accessibility prior to fabrication or installation of the HVAC components. Protect the building structure per FMC302. Provide accessibility for elevated equipment per FMC306.5. Fabricate and install
<br />HVAC system components per FMC304 and FRBCM1307, the product manufacturer's envelope penetration detail, FBC107.3.5 and wind data for wall and roof penetrations. HVAC equipment manufacturer's installation
<br />instructions, HVAC equipment expanded capacity ratings and AHRI certification must be available on the construction site at time of code official inspections per FBC110.
<br />4) All exterior building penetrations and exterior mounted HVAC equipment, wall vent caps, roof vent caps, intake air vents, relief air caps, etc. must comply with FBC1609 wind loads. HVAC Contractor must supply
<br />code approved engineered product or equipment test information for attachment to the building envelope component. A structural engineer's sealed drawing detail may be required for exterior equipment mounted
<br />above ground level per FBC1510.10. This HVAC design does not provide structural, equipment, or hood tie -down details. View structural engineer's drawings and details for equipment support and tie -down
<br />information when equipment manufacturers engineered data does meet code compliance.
<br />5) All duct sizes shown on the HVAC drawings are clear interior "free area" duct dimensions based on FMC603.2 Manual D duct design. Add 3" to listed sizes for R-6 exterior duct dimensions or add 4" to listed sizes
<br />for R-8 exterior duct dimensions. Fiberglass duct board installed inside the building envelope is equal to Knauf 1.5", R-6, fabricate and install per SMACNA standards. Flexible ducts installed inside the building
<br />envelope [unvented attics, unvented floors, basements, etc.] are equal to Atco 36 series R-6 class one air duct not limited in length per FMC603.6.1.1. Use R-8 ducts as required by Manual J v2.5 Section 1 for ducts
<br />mounted exterior of the building envelope [vented attics, under vented floors, garage, outdoors, etc.]. For Prescriptive energy compliance method 402 using form FEC402-2020, use R-8 ducts when installed exterior to
<br />the building envelope as required by FEC403.3.1. For Performance energy compliance method 405, R-6 ducts may be shown to comply, but MJ8 recommends a minimum of R-8 for ducts mounted outside the building
<br />envelope as calculated in this design. Construct all ducts per manufacturer's installation instructions and SMACNA standards for a maximum 1 I.W.C. Suspend and support the ducts from the building structure per
<br />FMC603. Use 26-gauge sheet metal or verify local code compliance for use of rigid foil face fiberglass duct board for penetrations of private garages per FMC603.7 and protect ducts per FMC607. Mastic seal all ducts
<br />installed outside the building's thermal envelope per UL-181 and FMC603.9. Provide accessible air volume control dampers in branch ducts per FMC603.18 and MJ8. General exhaust ducts used for exhaust fan duct,
<br />clothes dryer duct, make up air duct, and residential cooking appliance duct up to 14" in diameter (or equal free area in rectangular) are constructed from 28-gauge sheet metal "snap lock pipe", use SMACNA
<br />standards for required gauge of larger metal ducts or other duct types, mastic seal ducts per table FMC603.9. View FRBC Table M1506.2 for exhaust air duct sizing restrictions. Use flexible air ducts or 28-gauge sheet
<br />metal "snap lock pipe" for ventilation air ducts, verify approved duct type with local code official. Mandatory test of new air ducts greater than 39 linear feet required by energy code compliance method 402 as required
<br />by FEC403.3.3.
<br />6) Provide a condensate drain piping system for HVAC cooling equipment per FMC307 and a refrigerant piping system for split system HVAC equipment per FMC1107. Extend condensate drain discharge 12" minimum
<br />from the building exterior wall, discharge to grass or other approved location; a condensate drywell may be required. Provide properly sloped piping and supports for condensate drain lines and support of properly
<br />sized refrigerant piping per FMC305. Insulate piping to R-3 when required by FEC403.4 and protect per FEC 403.4.1.
<br />7) Provide a balanced return air system per FMC601.6. Enclosable rooms require a 1" undercut on the interior door, allowing about 30 cfm of air relief per 30" wide door, pressure differentials across the restricted
<br />room can't exceed .01 inch w.g. Enclosed habitable spaces require door undercut plus a means for air transfer or ducted return air. Enclosed habitable rooms located on the building exterior envelope should be
<br />balanced slightly positive. Size ducted transfer air ducts free area 1.5 times larger than the supply air delivered to the enclosed room(s). Size direct transfer air (through wall or door) grilles at 50 square inches of grille
<br />free area per 100 cfm of transfer air.
<br />8) Attic mounted HVAC equipment must contain a shut off device to alert the home owner if the primary condensate drain line is not working properly. Using 16-point bold text, post a "notice to home owner" on the
<br />electrical service panel alerting the home owner that the HVAC air handler is located in the attic space, view FEC403.3.6 for full compliance description and "notice to home owner" language required. Provide an air
<br />sealed and insulated attic access panel that completes the building envelope for hot vented attics, access deck for HVAC equipment service, attic light fixture with switch and an electrical receptacle.
<br />9) This design complies with climate zones 1A and 2A of the Florida energy conservation code design conditions FEC302, 72-degree heating set point and 75-degree cooling set point. Compliance demonstration is
<br />provided by energy conservation code form R402 Prescriptive or R405 Performance depending on construction type. The building envelope details are shown on the HVAC drawings ("Total Building Summary Loads")
<br />as required by FEC303.1. HVAC demand calculations and HVAC equipment capacity selection per section FEC403.7.1.1 and FEC403.7.1.2. Air distribution thermal insulation layer as required by FEC403.3.1 and
<br />FEC405.5.2, duct air sealing as required by FEC403.3.2, refrigerant and condensate drain piping insulation per FEC403.4 and HVAC equipment controls per FEC403.1.
<br />10) Upon completion of the HVAC system installation, test HVAC equipment operating capacities in accordance with Manual J section 10-8 for both cooling and heating to verify the equipment performance matches
<br />the expanded capacities listed by the manufacturer. Verify the air handler total air flow CFM matches the HVAC equipment schedule or demand calculation minimum system airflow rate. No duct system is
<br />self -balancing; adjust each room's branch duct(s) air volume control damper to achieve the listed air flow CFM values shown on the HVAC drawings or as needed to meet the building owner's desire. Use the air device
<br />volume damper for the final 10% of air balance to avoid noise at the air device face. Room air flow balance for buildings with concealed ducts can be accomplished during the "rough in" stage of construction prior to
<br />concealment of ducts. With the building air barrier fully intact and a balanced return air path present, install and operate the air handler to adjust air flow CFM per branch duct. Use a self -compensating air flow hood
<br />for airflow measurements perform air balance procedure in accordance with Manual J 10-8. When required b code provide he air balance report h it p p q y , p t ba a epo t to the building owner, HVAC Designer and code officials.
<br />11) HVAC equipment sequence of operation: The thermostat is set to "auto" mode and will monitor the conditioned space temperature to provide heating, cooling, or ventilation air when required. Upon a call for
<br />heating, the air handler fan interlock will open the ventilation air duct, operate the air handler fan and heat pump condenser (or electric heat strip) until the space conditions are satisfied. Energy code section FEC302
<br />sets a 72-de ree thermostat setting during the heating season. Upon a call for cooling, the air handler fan interlock will open the ventilation air d ra h -r educt, operate tot a al handler fan and condenser until the space conditions
<br />9 9 9 g P gr Pp P
<br />are satisfied. Energy code section FEC302 sets a 75-de ree thermostat setting during the cooling season. During f v rable outdoor conditions
<br />(low temperature and low humidity) the thermostat may be set to "fan on"
<br />for continuous indoor air circulation and introduction of ventilation air. HVAC installer must set the programmable thermostat to provide heating up to 70-degrees and cooling down to 78-degrees to meet energy code
<br />compliance section FEC403.1.2. Do not overcool the conditioned space (overcooling is defined as a temperature lower than the dew point temperaturef hconditioned p p ( g p po o the space). Most building interiors can easily reach
<br />damaging dew point temperatures during part load conditions if overcooled. Overcooling a building successfully requires specialized dehumidification equipment capable of independent controlled latent heat
<br />removal; view dedicated ventilating dehumidifier on HVAC options drawing.
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<br />DRAWING DATE
<br />3/29/2021
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