(a) Title sheet (T1) shall include:
- (1) Title of project;
- (2) Location of project;
- (3) Name of department;
- (4) List of all design consultants with phone numbers and addresses;
- (5) Arkansas Fire Code Prevention Certification Statement;
- (6) QC review statement;
- (7) Building Authority Division agency project number;
- (8) Department project number (if different than division assigned number);
- (9) State location map;
- (10) Vicinity maps of city and campus;
(11) Arkansas Fire Prevention Code, 12 CAR pt. 15, analysis data, which shall include:
- (A) Occupancy classification;
- (B) Minimum occupant loads;
- (C) Type of construction;
- (D) Allowable height;
- (E) Allowable building per floor;
- (F) Gross floor area for each floor of all buildings;
- (G) Net floor area for each assembly occupancy classification;
- (H) Horizontal separation distances;
- (I) Exit and access corridor protection strategy;
- (J) Seismic design category; and
- (K) Seismic use category; and
(12)
- (A) Index of all drawings in the project.
- (B) For large projects, the index of drawings and other information may be placed on Sheet T2.
(b) Topographical surveys and plot plans (TS).
(1)
- (A) Survey shall meet the Arkansas Minimum Standards for Property Surveys and Plats.
- (B) A registered land surveyor licensed to practice in Arkansas shall stamp and sign these plans.
- (2) Where required by the scope of the project, provide a legal description of the subject property.
- (3) Show property lines and surrounding features affecting future development.
(4)
- (A) Show the location of all known easements, flood plan boundaries, and other features that will limit or prohibit development of the site.
- (B) Note the elevation of the hundred-year floodplain on the plan and define the perimeter or extent of this elevation with a bold line.
- (C) Recommend you shade or crosshatch a screened pattern within the boundaries of the flood plan for clarity.
- (D) Include a source data reference on the plan identifying where the flood plan information was obtained.
(5)
- (A) Show contour elevations at a minimum of five-foot intervals for undeveloped areas of the site and one-foot or two-foot intervals within the project limits as necessary to accurately describe the site terrain.
- (B) Indicate the path and contour of all existing surface run-off drainage into and out of the site.
(6)
- (A) Show the location of existing utility lines, materials, and sizes and surface features.
- (B) When underground utilities are shown and could not be verified during the survey, provide a disclaimer statement on the plan noting the source of the assumed information.
- (C) When information is derived from public utility records, include the location of the record archive, a contact phone number, and the plate or drawing record from which the information was taken.
(7) Show the locations of existing:
- (A) Buildings;
- (B) Towers;
- (C) Tanks;
- (D) Wells;
- (E) Pads;
- (F) Old foundations;
- (G) Drives; and
- (H) Lots.
(8)
- (A) Show the location, size, and type of existing means of access to the site.
- (B) Where bridges, trestles, or other load limit or height limiting structures are located along the access routes, note the posted load limit or height restriction.
- (C) Where height restriction exists and is not posted, such as utility line crossings, determine the minimum clear height under the structure at the center of the road or access drive.
- (D) Where gravel or paved roads are shown on the plans, identify these roads by their official name or designation number (i.e., County Road 69).
- (9) Show location of permanent monument markers on the site and the coordinate information describing the monument location.
(10)
- (A) Show location, size, and type of all trees greater than three inches (3”) in diameter within the project limits.
- (B) Show other prominent trees or vegetation on the plan site that may affect the project development.
- (C) Where heavily wooded or bushy areas exist, define the approximate profile of the perimeter of these areas and note as:
(i) Heavily wooded;
(ii) Wooded;
(iii) Bushy;
- (iv) Marshy; or
- (v) Swampy.
(11)
- (A) Provide a north arrow and a plan scale in a prominent location on the plan.
(B) The preferred location is the bottom center of the plan sheet or the lower right-hand corner of the plan sheet.
- (c) Boring logs and soils data.
(1)
- (A) Provide a small-scale plan of the site and building showing the location where samples were taken.
- (B) Distinguish between borings and test pits.
- (2) Indicate the surface ground elevation, the depths of each boring or test pit, and the blow counts per ASTM D-1586 at each bore.
(3)
- (A) Note the classification/description of materials encountered.
- (B) Indicate the ground water level at each boring or pit.
- (C) Note the general site conditions and recent weather history, if known (i.e., heavy rains in general area over the last month).
- (D) Include other pertinent data.
(4) Provide a brief description of site geology and subsurface conditions encountered.
- (d) Demolition drawings.
- (1) Show the location of all existing elements that will affect the work or be used as a reference point.
(2)
- (A) Clearly define elements that are to remain after the demolition is complete.
- (B) Coordinate the location of this information with the new construction plans to avoid omissions or errors.
(3)
- (A) Clearly define the beginning point and the ending point of the demolition work.
- (B) Where possible, provide a flag symbol indicating these points.
(4)
- (A) Clearly state on the drawings how the demolished materials are to be disposed.
- (B) If materials or equipment are to be retained by the owner, clearly identify these items and note where the removed items are to be stored.
- (C) Avoid using the phrase “Owner has the first right of refusal on demolition materials”.
- (D) Coordinate this activity with the owner prior to issuing the plans.
(5)
- (A) Clearly indicate all temporary and permanent closures of penetrations in building envelopes.
- (B) Indicate temporary or permanent backfill requirements where demolition opens the existing site or removes structures.
(6)
- (A) Clearly note the size, location, and type of material for piping systems, electrical systems, and the like that will be abandoned in place.
- (B) Where possible, in existing structures, require the contractor to label piping and the like that is to be abandoned with the date of the contract drawings, i.e., “Abandoned May 2000”.
- (C) Labels should appear on both ends of the abandoned system.
(e) Civil site drawings.
- (1) If the project is to be constructed on a newly acquired state property, provide a legal description prepared by an Arkansas registered land surveyor or refer to the description provided on the topographic survey sheet if one is provided in the set of plans.
(2)
- (A) Show the location of all adjacent buildings, tanks, structures, towers, and the like in the vicinity of the proposed building project.
- (B) Show the location, size, and type of all trees greater than three inches (3”) in diameter that may affect the construction or access to the construction area.
(3)
- (A) Show the location of the boundary of the hundred-year floodplain as it relates to the project site.
- (B) Show the elevation contour of the hundred-year flood level.
- (C) Lightly shade or crosshatch the area within the floodplain boundary and clearly indicate all new work within this area.
- (D) Include a reference to the source of the data.
(4)
- (A) Show the location of all known existing utilities and new utilities including the location of all connection points.
- (B) Where connections to existing utilities are governed by the local utility company, provide the name and phone number of the local company.
- (C) Provide connection details, temporary flushing details, and details for expansion and thrust blocking where applicable.
- (D) The One Call Center is to locate all underground utilities as required by Arkansas Code § 14-271-101 et seq.
(5)
(A) Where roadways, driveways, parking lots, sidewalks, and other paved areas are to be provided, show locations of all:
- (i) Control joints;
- (ii) Constructing points; and
- (iii) Expansion joints.
(B) Provide details of:
- (i) Joints;
- (ii) Turndowns; and
- (iii) Reinforcing.
- (C) Provide cross-section view of paving showing the subbase and paving materials.
(6)
- (A) Show existing grade contours as thin, dashed lines and new contours as heavy, solid lines.
- (B) Where extensive cut and fill are required, show cut and fill cross-sections.
- (C) Where roadways, driveways, and parking lots are to be constructed, show cross-sections and profiles as necessary to clearly define their construction.
- (D) Where cut and fill are required, show location of designated areas on the site for surplus or stockpile materials.
- (E) Show spot elevations at all critical control points and construction points.
- (F) Note the finished floor elevation of the first floor located above grade.
- (G) For buildings with basements or sublevels, also include the finished floor elevation for the lowest level.
(7)
- (A) Show the location of all drainage features on the site.
- (B) For new construction, show the intended path of surface runoff drainage.
- (C) Indicate the direction of flow by placing arrows in the direction of the flow.
- (D) Where existing or new drainage structures occur, show the inverts in and out of boxes, drop inlets, manholes, and the like.
(E) For long runs of underground drainage piping, provide plan and profile drawings indicating the:
- (i) Depth of the piping and structures;
- (ii) Slope of the system; and
- (iii) Cover depth above the system.
- (F) Where the piping system material must change as the piping passes under a road or drive or where the system extends above grade to cross a low area or streambed, clearly indicate the change on the profile and the plan view.
(f) Landscaping drawings.
(1)
(A) Show the location of all:
- (i) Landscaping beds;
- (ii) Retaining walls; and
- (iii) Water features.
- (B) Include schedules showing the planting types and sizes.
- (C) Indicate planting season limits and watering schedules.
(2)
- (A) Show location and type of irrigation system heads.
- (B) Show the head spray pattern and radius.
(C) Show the location of:
- (i) Zone control valves;
- (ii) Drain valves; and
- (iii) Isolation valves.
- (D) Show the layout of the piping distribution system.
- (E) Show location of the connection to the public or private water supply and the approved backflow prevention device.
- (F) Show location of all control panels and transformers requiring power above twenty-four (24) volts.
- (G) Show the location of the source power or refer to the appropriate electrical drawing for the location of main power and connections.
- (3) For systems with future extension or potential for future growth, show the location of all sleeves under driveways, sidewalks, and lots as required to extend future services without cutting and patching paving.
(4)
- (A) Provide staking details for all trees and shrubs that are not self-supporting.
- (B) Provide installation details for each type of irrigation head, zone valve, and backflow prevention device.
(g) Fire services access.
- (1) Show locations of all buildings and structures around the project site.
- (2) Show the location of all drives, roads, parking lots, and sidewalks large enough to allow passage for emergency service vehicles.
(3)
- (A) Show locations and types of all fences or barricade structures around the site that may limit access or impede evacuation in an emergency.
- (B) Where gates are installed that restrict access to the building or site, provide a Knox Box that is keyed to the local fire department or emergency response service.
(4)
- (A) Show the total square footage and number of floors on the building plan.
- (B) Show the type of construction as determined by the Arkansas Fire Prevention Code.
- (5) If specific areas of the site have been designated as areas of assembly or refuge for the building occupants, show the locations on the plans.
(6) Show the approximate location of the building entrances and exits and the approximate location of the following items, if applicable:
- (A) Fire alarm panel or firefighter’s service panel;
- (B) Main power disconnect switch, or shunt power trip device;
- (C) Area of rescue inside the building;
- (D) Fire stair towers; and
- (E) Elevator shafts.
- (7) Show locations of all fire hydrants within five hundred feet (500’) of any point on the building and within the area covered by the plan view.
- (8) Show the location of the fire department connections, post indicator valves, and fire pump, if applicable.
(h) Architectural drawings.
(1)
- (A) Floor plan drawings shall be shown at a scale no less than one-eighth inch equals one foot (1/8” = 1’-0”).
- (B) For large buildings, use match lines to separate the building plan as required to fit this scale.
- (C) For large buildings requiring match lines, provide an overall composite plan at a scale smaller than one-eighth inch (1/8”) to show the relationship of all areas to one another.
- (D) Show the match line locations on this plan and reference the one-eighth inch (1/8”) scale plan sheet number for each area.
- (E) Show the room name and number for each space.
- (F) Show the detail marks, elevation marks, and door and window marks referenced to the door and window schedules.
- (G) Provide legends, material notes, and general notes as required to describe the work.
(2)
- (A) Provide dimensional plans separate from the general floor plans as necessary to describe and dimension the size and relationship of the space and features.
- (B) Dimensions may be shown on the general floor plans and enlarged plans provided the sheets do not become so cluttered as to be illegible or difficult to read.
(3)
- (A) Provide larger-scale drawings for toilet areas, elevator lobbies, entry lobbies, special use rooms, and similar spaces where more intricate work is to be performed by the contractor.
- (B) Drawings shall be shown at a minimum scale of one-quarter inch equals one foot (1/4” = 1’-0”).
(4)
- (A) Provide exterior elevations of all faces of the buildings.
- (B) Elevations shall be shown at a scale not less than one-eighth inch equals one foot (1/8” = 1’-0”).
(C) Elevations should indicate:
- (i) The building materials to be used;
- (ii) The texture of materials; and
- (iii) The color of the finished surfaces.
(D) Where accent bands or features are used, provide clarification of the:
- (i) Size;
- (ii) Type; and
- (iii) Color.
- (E) Show exterior features such as gutters, downspouts, railings, screens, construction joints, expansion joints, masonry control joints, and the like.
(F) Show locations of all:
- (i) Building section cut lines;
- (ii) Detail marks; and
- (iii) Door and window marks.
- (G) Indicate the relationship between the finished floor and the exterior grade.
- (H) Show the floor-to-floor height by dimension.
- (I) Dot in the footings or foundation.
(5)
- (A) Provide at least one (1) traverse section and one (1) longitudinal section through each major axis of the building.
- (B) These sections may be shown at a scale of one-eighth inch equals one foot (1/8” = 1’-0”).
- (C) Provide additional large-scale building and wall sections as required to properly understand and construct the building.
- (D) Building sections shall clearly illustrate all building materials, sizes, spacing, and attachment.
- (E) Show all through wall flashings, roof flashings, flashings at slabs, and floors.
- (F) Show the relationship between the floor slab and the footings or supporting structure.
- (G) Note the finished floor elevation for each floor and the elevations of perimeter footings or upper floor supports.
- (H) Show the relationship of the finished floor to the exterior grade.
- (I) Show the location of perimeter insulation and foundation drainage systems.
(J) Indicate special feature details such as:
- (i) Ceiling heights;
- (ii) Furr-downs;
- (iii) Coffered-ceilings; and
- (iv) Skylights.
- (K) Provide details at each unique condition through the ceiling cavity where the relationship between the ceiling height and the structural framing changes the space available in the ceiling cavity for mechanical and electrical systems.
- (L) Show the location of the vapor barrier or air barrier in each exterior wall section and roof section.
(6)
- (A) Provide large-scale details of unique construction features of the building.
- (B) Where special angle cuts are required on masonry materials, framing materials, or finish materials, provide details at a scale large enough to clearly define the desired detail.
- (C) Coordinate the plans with these details to ensure that the contractor can determine where these special cuts occur.
- (D) Where special patterns are to be formed in the finish materials, provide large-scale plans, elevations, and details as necessary to describe the work.
- (E) Provide large details of typical construction elements as necessary to describe the building construction.
(7)
- (A) Provide door and window details as required to describe the size, style, and installation of each unique door and window.
- (B) Provide details showing the head, jamb and sill, or threshold condition for each door or window.
- (C) Details shall be shown at a scale large enough to show the framing and attachment requirements.
- (D) Provide door schedules and window schedules in a graphic format as required to define the type, size, location, hardwood, finish, operation, and accessories required for each.
(8)
- (A) Provide a room finish schedule for each space in the building.
(B) Schedule should include:
- (i) The room number;
- (ii) The name;
- (iii) The location;
- (iv) The floor material and finish;
- (v) The base;
- (vi) The wall material and finish;
- (vii) The ceiling cove;
- (viii) The ceiling material and finish; and
- (ix) Any special trim or features.
- (C) Provide notes as required to adequately describe the finish treatments desired.
- (D) Provide references to the appropriate specification sections where additional information can be found.
(9)
- (A) Where built-in furniture, casework, or millwork is to be included in the construction project, provide large-scale plans, elevations, sections, and construction details as required to describe the size, construction, and finish of these elements.
- (B) Provide detail reference marks as required on the floor plans and the millwork plans as required to accurately locate the details and the space where they apply.
- (C) Built-in millwork should be designed to be as simple to construct as the function of the millwork will permit.
- (D) Where customized furniture is to be a part of the construction contract, provide the detailing necessary to construct the piece.
- (E) Clearly note all such pieces as “custom built”, i.e., “Custom Built Desk”.
(10)
- (A) Provide reflected ceiling plans for each floor (including floors with open structure).
- (B) Drawing shall indicate the types of ceiling materials, pattern of layout, and changes in elevations of the ceilings.
- (C) Note the height above the finished floor for each section of ceiling.
(D) Show the location of all ceiling-mounted devices such as:
- (i) Light fixtures;
- (ii) Air devices;
- (iii) Access doors;
- (iv) Speakers;
- (v) Sprinkler heads; and
- (vi) Similar devices.
- (E) These devices shall be coordinated with the various discipline drawings to ensure that the contractor can install the subsystems correctly.
- (F) A reflected ceiling plan is not a substitute for properly coordinated plans.
(11)
- (A) Provide a plan view of the roof system at a scale not less than one-eighth inch equals one foot (1/8” = 1’-0”) or the same as the floor plan.
- (B) The design professional may request a waiver from this requirement for large-scale projects where needed.
(C) Show the size and location of all:
- (i) Expansion joints;
- (ii) Roof drains;
- (iii) Emergency roof drains;
- (iv) Scuppers;
- (v) Overflow scuppers; and
- (vi) Roof vents.
- (D) Show the pitch or slope for each section of the roof.
- (E) Indicate the materials of construction and the color of the finish materials.
- (F) Show the access to all roof levels.
- (G) For multistory buildings with roof-mounted equipment requiring maintenance, provide at least two (2) roof access points to provide an alternate means of escape during an emergency.
- (H) Where skylights or clerestory glass is provided over atrium or high spaces, provide Occupational Safety and Health Administration safety cages or approved alternate protection to prevent maintenance personnel from falling through the glazing.
- (I) Where roof-mounted equipment requires maintenance or inspection access, provide footpath walkways to minimize damage to the primary roof membrane.
- (J) Where absolutely necessary to have pipes and conduits across a roof, specify “zero penetration” portable suspended pipe hangers with nonrusting base supports to distribute weight without damage to the membrane.
- (K) Provide details for all penetrations, joints, abutments, and changes in materials or elevations.
- (L) Details shall be drawn large enough to clearly indicate the location of each layer of material, attachment, and overlap necessary to provide a proper seal, lap, or flashing.
- (M) The use of bold lines to indicate ambiguous details without clearly showing the installation requirements shall be prohibited.
- (N) Refer to §2-400 for additional information.
(12)
- (A) Provide a life safety plan for each building.
- (B) Show the location of all required fire exits.
- (C) Show the locations of all other exits meeting the requirements of a designated fire exit.
- (D) Show the locations of all rated partitions and the rating requirements.
- (E) Provide details of typical rated wall construction keyed to the floor plans.
- (F) Provide details for recommended penetrations and openings in rated partitions.
- (G) Show the location of the firefighter service command center if applicable.
(13)
- (A) Provide all information related to the Americans with Disabilities Act of 1990, 42 U.S.C. § 12101 et seq., (ADA) accommodations and access.
- (B) Show where the ADA parking accommodations will be provided and clearly design the routes of access and exit to the building.
- (C) Show the location of ADA facilities including ADA toilets, drinking fountains, vertical transport, sleeping rooms, bathing facilities, and the like on the plans.
- (D) Reference other architectural drawings as necessary to locate the construction details and dimensioning.
- (E) Provide details of all ADA required special features such as handrails, door controllers, ramps, curb cuts, and the like.
- (F) Provide a riser type detail showing the ADA mounting heights of countertops, work surfaces, thermostats, light switches, fire alarm devices, door handles, toilet fixtures, and other features included in the work to provide for a central point of information regarding the heights of these elements.
- (G) Do not merely refer to ADA requirements or guidelines.
(14)
- (A) Where modular furniture or movable furniture will be a part of the contract, provide plans showing the specific locations for each component by component name or model number.
- (B) Provide legends and schedules as necessary to adequately describe the components in the plan view.
- (C) Provide elevation views of modular workstations and furniture to allow verification of functionality and to describe the scope of the work.
- (D) Furniture not provided as a part of the contract shall be clearly labeled as “Not in Contract” (NIC) or as “Owner furnished/Contractor installed”.
(15)
- (A) When seismic restraint of nonstructural elements is required by code, provide details of typical acceptable restraining methods.
- (B) Show locations of all restraints on the plans and cross-reference the appropriate details.
(C) Provide the basic design criteria for the restraining system including the seismic zone/category in which the project is located.
- (i) Kitchen equipment drawings.
(1)
- (A) Floor plan drawings shall be shown at a scale no less than one-eighth inch equals one foot (1/8” = 1’-0”).
- (B) Food preparation areas and food service area plans shall be drawn at a minimum scale of one-quarter inch equals one foot (1/4” = 1’-0”).
- (C) Plans should show the relationships for all fixed and movable furniture, equipment, and appliances.
- (D) Provide area names to define the various function areas in the food service drawings (i.e., preparation, cooking, baking, and serving).
(2)
(A) Provide an equipment schedule that identifies:
- (i) Each piece of equipment’s function, power and utility requirements, motor sizes, and voltage requirements, where applicable; and
- (ii) A reference product manufacture and model number.
- (B) Where equipment, fixtures, or furniture must be custom fabricated for this specific project, note in the schedule that the item is “custom built”.
(3)
- (A) Provide details and elevations as required to describe the fabrication and installation requirements for all fixtures and furniture.
- (B) Where components must be custom built, provide the fabrication details necessary for the contractor to select the proper materials, methods, dimensions, and finishes required to construct the project.
(4)
- (A) Where connections are required by other trades, do not refer to “connection by plumbing subcontractor” (refer to 22 CAR § 111-905(p)).
(B) The Building Authority Division considers equipment as fixtures which are permanently attached to the building structure by anchor bolts or fasteners or which require hardwired or permanent connection to the building’s mechanical or electrical systems to be capital improvements and as such shall be subject to compliance with all Arkansas laws and rules including but not limited to:
- (i) The Arkansas Architectural Act, Arkansas Code § 17-15-101 et seq. (licensing for architects);
- (ii) Arkansas Code § 17-30-101 et seq., (licensing for engineers); and
- (iii) Arkansas Code § 22-9-101 et seq., (Public Works Codes).
- (C) Furniture or equipment which is completely portable or movable and only requires a plug-in connection or a quick copper connection is considered as furniture and not as a capital improvement.
(j) Structural drawings.
(1)
- (A) On the first sheet of the structural drawings, provide the information pursuant to Arkansas Code § 12-80-101 et seq., and the Arkansas Fire Prevention Code regarding seismic design.
- (B) Provide a brief description of the type of foundation and framing system used.
- (C) Reference the subsurface soil investigation and survey (company and date).
- (D) If no investigation has been performed, indicate all assumptions used for the foundation design.
- (E) Describe the live load allowances included in the system design.
- (F) Note the allowances used for partition loads, mechanical and electrical system loads, and the allowance for movable items such as furniture and the like.
(2)
- (A) Foundation drawings shall include a notation for the design bearing values for all spread footings and caissons and bearing loads for all pilings.
- (B) Show details for all slab and footing interfaces including those for interior partitions.
- (C) Show the locations and spacing for all construction, expansion, and control joints on all concrete expanses.
(D) Show locations of:
- (i) Perimeter insulation systems;
- (ii) Under-slab drainage; and
- (iii) Foundation drain system.
- (E) Where expansive clay soils or other unsuitable soils are indicated, show the requirements for the proper backfill of a suitable material or engineered system to provide the proper bearing support.
- (F) When collapsible forms are required to compensate for subsurface expansion, show the detail requirements for installation and control.
(3)
- (A) For all plans, show the minimum concrete strength required for each part of the structure as required to comply with the Arkansas Fire Prevention Code.
- (B) For special areas such as mezzanines, show the maximum safe live load that the owner may place on the mezzanine after construction.
- (C) Show the steel yield point strength for all reinforcing and structural steel.
(4)
- (A) Framing plans shall show the size of each element and the dimensional location.
- (B) When the framing system includes areas such as shear walls which should not contain penetrations, these areas shall be clearly noted and shaded or hatched to allow rapid location and identification during the review process.
- (C) On systems such as post-tension slabs where penetrations must be exactly located, show all locations by dimension and provide a cautionary note for the contractor advising him or her of the restrictions or precautions necessary to follow during construction regarding the cutting of additional openings.
(5)
- (A) For preengineered systems such as preengineered metal buildings, tilt-up slab construction, pre-tension slabs, post-tension slabs, or modular prefabricated construction, provide sufficient information and details as required for the fabrication to meet the requirements of the project.
- (B) Include all design values necessary to fabricate the structures and to allow independent verification that the furnished product meets the design intent.
- (C) Include plan views and elevations of these preengineered systems to allow review of the concept and coordination of work designed by other trades such as mechanical, electrical, and architectural finishes.
(6)
- (A) Provide schedules showing all grade beams, pilings, caissons, and other elements where size, type, strength, and special connections must be coordinated to ensure proper construction.
- (B) Include other schedules as required to allow accurate bidding, construction, and field verification or as required to communicate the design intent.
(C) This can include, but is not limited to:
- (i) Column schedules;
- (ii) Beam schedules; and
- (iii) Truss schedules.
(7)
- (A) Show all typical and special connection details.
- (B) Indicate the location and type to allow quick coordination and review.
(8)
(A) Show section views and elevations as required to indicate the connection locations of:
- (i) Beams;
- (ii) Floors;
- (iii) Joints; and
- (iv) Trusses.
- (B) Where sections do not show the floor below, provide a dimension reference to the top of the beam bearing elevation of the joist or other element that will allow accurate determination of the clear space below the bottom of the structural elements.
- (C) This dimension should be in reference to the finished floor below or in elevation dimensions, i.e., ten feet (10’-0”) above second floor or elevation one hundred twelve feet and six inches (112’-6”).
(k) Mechanical drawings.
(1)
- (A) Show the locations of all heating, ventilating, and air conditioning equipment on the plan view.
- (B) Provide each piece of equipment with a unique designation mark keyed to the equipment schedule.
- (C) Equipment shall be located as required to provide proper access for maintenance and repair.
- (D) Equipment shall also be located as required to facilitate future removal and replacement without requiring the demolition of walls, windows, or other perimeter features of the building.
- (E) Where replacement will require removal of louvers, other equipment, piping, or ductwork, clearly indicate the separation points on the plans.
- (F) Use bolted flanges or other replaceable type connections.
- (G) Where replacement or installation will require removal of a wall, door, window, or the roof, the design professional must obtain written approval from the Design Review Section prior to the submission of the final review documents (construction documents).
(2)
- (A) Show the routing of all ductwork and piping on the plan views.
- (B) Ductwork shall be shown double line all the way to the diffuser or grille.
- (C) Differentiate between high velocity ductwork, double wall ductwork, single wall ductwork, and internally insulated ductwork with a distinctive shading or hatching pattern.
- (D) Differentiate between different duct system materials such as PVC, aluminum, galvanized, and the like in a similar manner.
- (E) Piping six inches (6”) and larger shall be shown double lined on plan and section views at one-quarter inch equals one foot (1/4” = 1’-0”) scale or larger.
- (F) Piping ten inches (10”) and larger shall be shown double lined on plans and section views at one-eighth inch equals one foot (1/8” = 1’-0”) scale and larger.
- (G) All other piping shall be single line and bold.
- (H) Show reducers, increasers, and when fittings on all ductwork and piping at each change in size.
- (I) Provide arrows on the piping plans indicating the direction of flow and direction of slope of the lines.
(3)
- (A) Where the HVACR system contains refrigeration equipment with remote condensers, condensing units, or fluid coolers, show the routing of the refrigerant piping between each piece of equipment on the plan and section views.
- (B) On small systems such as package coolers or split system air conditioners, the designer may use a single line to represent both the suction and liquid lines.
- (C) Provide dual designation on the line (i.e., RS/RL) and provide the size of both lines in the dimension note.
- (D) Where hot gas by-pass, double suction risers, or similar special lines are required, show these lines separate from the combined suction and liquid lines.
- (E) Provide refrigerant piping schematics for each unique system.
- (F) Show all the refrigerant specialty items and isolation valves.
- (G) The designer may show the pipe sizes in a schedule format for each unit adjacent to the piping schematic.
(4)
- (A) Show the airflow quantity at each air device with a balancing damper to facilitate capacity verification and final air balance.
(B) For special areas such as laboratories, isolation rooms, special procedure rooms, and hazardous storage or sterile storage rooms, show the pressure relationship for that space relative to the adjacent spaces such as:
- (i) Positive pressure;
- (ii) Negative pressure; or
- (iii) Neutral pressure.
- (C) This is not required for toilet rooms, janitor closets, or similar spaces which are clearly negative to the adjacent spaces.
- (D) The designer may indicate the pressure relationship for these spaces if necessary to clearly communicate specific design intent.
- (E) The sum of the air flow quantities in a zone shall match the capacity of the air handling unit or terminal devices in the respective zone plus or minus an appropriate amount as required to maintain the space pressure relationship.
(5)
- (A) Show the exact location for each fire damper, smoke damper, control damper, balancing damper, and control sensor device and the access door to each device on the plans and section views.
- (B) In variable volume systems, show the locations for all relief doors upstream or downstream of every fast-closing damper as required to prevent the collapse or rupture of the duct system.
(6)
- (A) Where ductwork penetrates a floor or a roof and where a duct rises up or down, show the cross-section of the duct with the appropriate diagonal marking and shade a portion of the cross-sectional view to prominently show the location of the penetration or riser on the plan view.
- (B) Provide a note indicating the size and direction of the riser and to where it goes, i.e., 10/10 up to second floor).
(7)
- (A) Where hydraulic or steam piping systems are provided, show the location of all expansion joints or loops and the locations of all anchors and guides required to control the expansion.
- (B) In steam systems, show the locations of all traps and vents required for the proper startup and maintenance of the equipment.
- (C) Show these locations on the plan views.
- (D) Include the locations of access doors where required.
- (E) When designed offsets in these systems create traps or air pockets, show a drain and vent location to facilitate future drain and fill of the system.
(8)
- (A) When hydraulic systems require freeze protection additives such as a glycol or brine solution, show the estimated system volume on the drawings along with the percentage by weight or by volume of the antifreeze additive and the type of additive required.
- (B) This may be noted on the system flow diagram.
- (C) Ensure that all equipment capacities have been adjusted to account for the additive.
(9)
- (A) Provide an enlarged plan view of each unique mechanical room at one-quarter inch equals one foot (1/4” = 1’-0”) scale minimum.
- (B) Show the location of all HVACR equipment, piping, ductwork, and controls panels and the locations of all electrical panels, plumbing equipment, and other equipment within the room.
- (C) All nonHVACR equipment should be shown dashed and a reference provided to the appropriate sheet where that equipment can be found.
(D) Coordinate the location of these items to ensure:
- (i) Proper code clearance;
- (ii) Maintenance access; and
- (iii) Operational access.
(10)
- (A) Provide at least one (1) cross-section view of each mechanical room showing the elevation of the equipment, ductwork, and piping in the room to allow the contractor sufficient information for bidding and to allow verification of proper access for service and replacement of equipment.
- (B) Large or complex rooms may require multiple section views to clarify these issues.
- (C) All section views should be drawn to a minimum scale of one-quarter inch equals one foot (1/4” = 1’-0”).
(11)
- (A) Provide at least two (2) cross-sectional views through the building along each of the major axis showing the mechanical systems.
- (B) The minimum scale for these views shall be one-eighth inch equals one foot (1/8” = 1’-0”).
- (C) Provide additional enlarged scale sectional views as required at crossovers of ductwork and piping, furr-downs, and offsets under major structural members to clearly describe the installation limitation at these areas.
- (D) Reference all known or possible interference from other trades such as sprinkler piping, electrical conduits, plumbing drains, and the like.
- (E) Where these large-scale sections do not show the floor-to-floor view, provide a dimension to the finished ceiling and bottom of the structure to allow verification of the clearance, i.e., ten-foot ceiling and eleven-foot-six-inch bottom of joist and the like).
(12)
(A) Provide details of:
- (i) Typical connections;
- (ii) Mounting details;
- (iii) Piping specialties; and
- (iv) Unique installations.
- (B) Details may be drawn not to scale provided the detail is not required to clarify a clearance or service access issue.
- (C) In these cases, show the detail at an appropriate scale.
- (D) Cross-reference the sheet number to where the specific detail applies.
- (E) Also provide a detail flag on each plan sheet which references the appropriate detail number on the detail sheet.
- (F) Provide an individual detail number on each detail to facilitate this cross-referencing.
- (G) Provide as many details and detail sheets as necessary to clearly communicate the installation requirements for the project.
(13)
(A) Provide flow schematic for:
- (i) Chilled water;
- (ii) Heating water;
- (iii) Condenser water;
- (iv) Steam systems; and
- (v) Other heat transfer systems.
- (B) Show the relationship of the equipment in the process.
- (C) Show all piping connections control elements and valves necessary for the proper operation and maintenance of the systems.
- (D) Size all piping, vents, drains, and valves.
- (E) Show capacity, flow, and pressure loss for generating equipment.
- (F) The diagram should be drawn to enhance rapid understanding of the system.
- (G) For complex systems, provide diagrams in a ladder-type arrangement to eliminate line crossings and the need for isometric views to clarify flow path.
(H) Correctly show the flow path and the relative location of all:
- (i) Components;
- (ii) Junctions; and
- (iii) Branches.
- (I) Do not change the relative location of flow junctions to avoid line crossings.
- (J) Provide arrows indicating direction of flow on each pipe segment.
- (K) Show all make-up valves, relief valves, pressure reducing valves, and expansion tanks.
- (L) Show the pressure rating and capacity of each on the diagram.
- (M) For complex systems with numerous valves, fittings, and components, provide multiple versions of the basic diagram with control capacities or subsystem elements superimposed on the diagram.
(14)
- (A) Provide control diagrams for each unique system or unit.
- (B) Diagrams shall show the locations of all sensors and control elements.
- (C) Provide a designation for each component and a legend or schedule for symbols on the same sheet, i.e., mixed air sensor and the like.
- (D) Show the set point and alarm points on the diagrams or in the schedules.
- (E) Indicate the type of control point for each device, i.e., Analog Input (AI).
- (F) Include the sequence of operation on the sheet with the control diagram.
- (G) Ensure that the sequence is clearly spelled out as to the actions and reactions of the components to the command or control signal.
- (H) When pipe-mounted or duct-mounted sensors are installed, provide a spare well adjacent to the control device to allow field verification of the device operation or the media temperature or pressure with portable, handheld instruments.
- (I) Provide a schematic diagram for each network LAN showing the location of each panel and workstation connection and the equipment it serves.
(15)
- (A) Provide equipment schedules on the drawings.
- (B) Do not schedule equipment in the specifications manual.
- (C) Schedules shall be arranged in graphic format with the major operating conditions defined and the capacities shown.
(D) Include the electrical requirements showing the:
- (i) Power voltage;
- (ii) Phase;
- (iii) Amperage;
- (iv) Motor horsepower; and
- (v) Brake horsepower.
- (E) For major equipment such as chillers and boilers, include the energy efficiency rating.
- (F) Provide sufficient data to allow purchase, startup, and balancing of the system or equipment.
- (G) Include data necessary to trouble shoot equipment in the event of a startup or operational problem.
- (H) Schedules shall be provided for each type of equipment or component, i.e., air handler, air devices, pumps, traps, and the like.
- (I) Provide a unique designator for each piece or type of equipment.
- (J) Ensure that the schedule title and designator are consistent with the plan labels.
- (K) In the header for each schedule, show the specification section number where that item can be found, i.e., Air Handlers – 15850.
(16)
(A) Where seismic restraints are required by code, provide details of typical acceptable restraining methods for:
- (i) Piping;
- (ii) Ductwork; and
- (iii) Equipment.
- (B) Show locations of all restraints on the plans and cross-reference the appropriate details.
- (C) Provide the basic design criteria for the restraining system including the seismic zone in which the project is located.
- (D) Where the code allows exemptions or exceptions based on pipe size or location of piping or ductwork relative to the supporting structure, note the exceptions on the plan.
(E) Designers are encouraged to lay out system piping and equipment in a manner which eliminates, where possible, the need for costly restraints and minimizes the hazard to the building occupants during a seismic event.
- (l) Fire protection drawings.
(1)
- (A) Show location and types of sprinkler heads.
- (B) Provide a different symbol for each type of head.
- (2) Show the hazard classification for each area with a different classification.
(3)
- (A) Show the locations and ratings of all fire and smoke partitions.
- (B) Show all fire doors, smoke vents, or fire shutters.
(4)
- (A) Show the location of the fire service entrance.
- (B) Show a detail of the service entrance including all valves and devices in the entry riser.
(C) Include the locations of the:
- (i) Test drains;
- (ii) Alarm devices;
- (iii) Seismic connections; and
- (iv) Backflow preventers.
(5) Where a fire pump is required, show a minimum of:
- (A) One-quarter inch equals one foot (1/4” = 1’-0”) scale plan review of the pump room; and
- (B) One (1) cross-section view of the room showing the elevation of the piping and valves.
(6)
- (A) When standpipe risers are required, show the location and size of the piping from the service entrance to each riser.
- (B) Show the location and size of each hose or fire department connection.
- (C) Indicate the mounting height of each hose cabinet or fire department connection.
- (7) When sprinkler heads are installed in electrical rooms, computer rooms, telecommunication rooms, elevator shafts, or elevator machine rooms, show the temperature ratings for these special heads and indicate if these are preaction or deluge-type systems.
(8)
(A) Show the area of coverage by special systems such as:
- (i) Dry-pipe systems;
- (ii) Preaction systems; or
- (iii) Nonwater systems.
(B) In nonwater systems, show the complete layout of:
- (i) Piping;
- (ii) Storage tanks; and
- (iii) System controllers.
(9)
- (A) Show the locations of all control valves and tamper switches in the system.
- (B) Show other devices that require interconnection with the building fire alarm system or other alarm or monitoring systems.
(10)
- (A) Show the location of all piping and the preferred routing throughout the building.
- (B) Size all piping, including branch piping, on the bid documents.
- (C) The designer may use the pipe size chart provided in NFPA 13 or may perform the hydraulic calculations necessary to size the piping.
- (D) It is permissible to allow the successful contractor to submit an alternate layout in the shop drawing phase subject to review and approval by the engineer.
(11)
- (A) Provide the details necessary to show the preferred or acceptable mounting requirements and piping support systems.
- (B) Where systems are subject to seismic design requirements, provide the seismic restraint details necessary to comply with the requirements of the zone in which the system is installed.
(C) Show locations of all restraints on the plans and cross-reference the appropriate details.
- (m) Plumbing drawings.
(1)
- (A) Show the locations of all plumbing fixtures, equipment, drains, vents, outlets, and valves necessary for isolation, operation, or emergency service on the floor plans.
- (B) Enlarged plans may be used to show exact locations.
(2)
- (A) Clearly define which piping is located below the floor, above the ceiling, or exposed in the occupied spaces.
(B) Piping subject to freezing shall be:
- (i) Installed on the warm side of the building insulation; or
- (ii) Provided with a heat trace system.
(3)
- (A) Size piping on the plan views.
- (B) Show increasers and reducers at the point where sizes change.
- (C) Show sizes of piping risers or headers concealed inside chases or where they pass through a floor.
(4)
- (A) Crosshatch or shade all plumbing fixtures and equipment for ease of location.
- (B) Provide a unique designation for each type of fixture or equipment.
(5)
- (A) Provide waste and vent risers in accordance with the requirements of the Arkansas State Plumbing Code, 17 CAR pt. 65.
- (B) Size the piping on the floor plans and these diagrams.
- (C) Show the size of each vent through the roof and designate these penetrations on the risers and plan views with their size, i.e., four-inch VTR.
(6)
- (A) Show the locations of all roof drains and area drains on the plan views.
- (B) Show where all drains terminate or discharge.
- (C) Where emergency overflow drains or scuppers are to be used, show locations and sizes.
- (D) Provide correct locations and details on the plumbing drawings and cross-reference the appropriate locations and details on the correct architectural sheets.
(7)
- (A) Show the locations of all cleanout plugs and manholes as required by the Arkansas State Plumbing Code.
- (B) On open drain inlets, outlets, and all connections to manholes and catch basins, show the elevation of the top of the feature as well as the flow line inverts of all inlets and outlets.
(8)
- (A) Provide a schedule showing the sizes, capacities, operating characteristics, and design basis product name for all plumbing equipment, i.e., water heaters, pumps, compressors, and the like.
- (B) Plumbing fixtures may be scheduled in the specifications, however, the preferred location is on the drawings.
(9)
- (A) For special piping systems such as natural gas, medical gas, laboratory gas, process piping, and the like, provide the same information as generally described above.
- (B) For small projects, multiple systems may be shown on the same plan view.
- (C) For large or complex projects such as laboratories and hospitals, provide separate plans for clarity.
- (D) For systems such as reverse osmosis, deionized water, or ultra-pure water systems, show all components in their respective locations on a flow schematic.
- (E) Ensure that complete specifications are provided for each component in the system.
- (F) Do not rely on the contractor or the vendor to size the system and select the components.
(10)
(A) Provide details for fixtures and equipment connections showing all valves, accessories, mounting supports, hangers, and auxiliary connections to other systems as necessary to communicate the:
- (i) Installation requirements;
- (ii) Operation requirements; and
- (iii) Maintenance shutoff or removal points.
- (B) Provide control interlock diagrams for equipment with automatic controls.
- (C) For systems containing tanks or holding vats, show all header piping requirements, tank, cylinder, or vat sizes in gallons or cubic feet, and methods for securing the tanks in place.
- (D) If alarms are required for notification of over temperature, over pressurization, overflow, or low volume, note these set points on the details or control interlock diagrams.
(11)
- (A) Where seismic restraints are required by code, provide details of typical acceptable restraint methods for piping and equipment.
- (B) Show locations of all restraints on the plans and cross-reference the appropriate details.
- (C) Provide the basic design criteria for the restraint system including the seismic zone in which the project is located.
- (D) Where the code allows exemptions or exceptions based on pipe size or location of piping relative to the supporting structure, note the exceptions on the plan.
- (E) Designers are encouraged to lay out system piping and equipment in a manner which eliminates, where possible, the need for costly restraints and minimizes the hazard to the building occupants during a seismic event.
(n) Electrical drawings.
(1)
- (A) Show the source and voltage characteristics of all power sources.
- (B) Show the exact location for connections to existing power, telephone, fiber optics, security, and other services to the project.
- (C) Where such connection points are shown on other drawings such as civil drawings, reference the sheet number where these connection points can be found.
- (D) Coordinate these cross-references to ensure the proper connection and entry points are shown.
- (E) Indicate the ownership of the existing utility to which these connections are to be made.
- (F) Some state facilities own their own distribution networks and many do not.
- (G) Provide a phone number and a contact name for the owning agent to coordinate connection requirements.
- (H) Provide a detail of each utility entry into the building.
(2)
- (A) Lighting layout shall indicate the switching and circuiting of each fixture or group of fixtures.
- (B) Circuiting shall indicate the power source panel and the circuit breaker number for that circuit.
- (C) Emergency egress lighting shall be crosshatched or shaded so the fixtures will stand out for rapid identification during review of the drawings.
- (D) When emergency power is provided by a generator or other backup source, the circuiting lines connecting fixtures and outlets should be designated with an “E” to identify these circuits as emergency power.
- (E) Each fixture symbol shall contain an identification designator that is keyed to the fixture schedule.
(3)
- (A) Power outlets shall be circuited in the same manner as lighting circuits.
- (B) Indicate the mounting heights of outlets to ensure proper installation.
- (C) Where outlets must be installed in a specific pattern or spacing, provide dimensional plans and elevations.
- (D) In the absence of the specific dimensional location of outlets, the contractor will install the box on the nearest stud or blocking.
- (E) Where power is provided to equipment, show the exact location of the disconnect switch.
- (F) Indicate the starter location and note if the starter is to be furnished unit-mounted with the equipment.
- (G) Show the size of the power conductors and the conduit serving the equipment.
(4)
(A) Show the location of all system components such as:
- (i) Fire alarm;
- (ii) Security;
- (iii) Closed circuit television;
- (iv) Sound;
- (v) Paging;
- (vi) Telephone; and
- (vii) Computer.
- (B) When the systems to be furnished are complex or may be installed by a specialty contractor, provide separate drawings for these systems.
- (C) Ensure that all components and locations are coordinated with other trades in the design phase.
- (D) Where systems are simple or small in nature, they may be combined with other system drawings such as the lighting or power.
- (E) When the interconnecting cabling for these systems may pose an interference with other trades, show the preferred or engineered routing of the cabling and conduit.
- (F) As a minimum, provide riser diagrams or schematics for each system.
- (G) Show the location of all system head-end or front-end panels, control stations, and subpanels.
- (H) When a system must interlock or interface with another system such as the fire alarm and fire sprinkler system, show the exact location of such interfaces and the specific interlock requirements.
(5)
- (A) Perform the lightning hazard calculations as defined in NFPA 780 and include this information on the cover sheet or in the electrical general notes.
(B) If a lightning protection system is to be provided, show the locations of all:
- (i) Air terminals;
- (ii) Interconnecting grounding cables;
- (iii) Down leaders; and
- (iv) Ground termination points.
- (C) Where grounding is connected to other grounding systems, show the connection point and the location of the other grounded systems termination points.
- (D) Show all details necessary to describe the attachment of air terminals, cabling support, penetrations of the building envelope, and attachment to the grounding rods or other systems.
- (E) Indicate the location of all test points necessary to measure the system resistance and specify the maximum permissible resistance allowed by the system design.
(6)
- (A) Show the location of main electrical rooms.
- (B) Provide enlarged scale drawings as necessary to show and designate all equipment.
- (C) For rooms containing equipment over six feet (6’-0”) tall, provide section views of equipment in the room showing installed elevations and clearance above the equipment.
- (D) Ensure that all equipment including branch panels and disconnect switches are installed with proper clearances in front of and above the unit as required by the National Electrical Code (NEC) Article 110.
- (E) Ensure that all panel locations are coordinated with other equipment in the space.
- (F) Show the locations of all panels on the small-scale plans also.
(7)
- (A) All new buildings and additions and renovations of more than four thousand square feet (4,000 ft2) of space shall include at least one (1) dedicated telecommunication room per floor sized in accordance with the recommendations in the appropriate EIA/TIA standards but no less than the size shown in 22 CAR § 111-1403.
(B) Show the location of all:
- (i) Cable entries;
- (ii) Mounting racks;
- (iii) Backboards;
- (iv) Operator stations;
- (v) UPS equipment; and
- (vi) Power outlets.
- (C) For mission critical operations, provide emergency lighting in the room.
- (D) Clearly define on the drawings who will be furnishing the interconnection cabling, i.e., cable and terminations, by the contractor or by the owner.
- (E) Specify plenum rated cabling in all installations not in conduit regardless of whether the ceiling cavity is currently a return air plenum.
(8)
- (A) Provide a wire management system in all new construction for the installation of special systems wiring which will not be installed in conduit raceways.
- (B) The wire management system shall be attached to the building structure or walls in a manner so as not to overload the structure.
- (C) Wire management systems shall be designed to accommodate multiple systems without electronic interference or creating a code violation.
- (D) Where necessary, provide multiple systems for dedicated use by a single system.
- (E) Wire management system and attachments should be designed to allow a minimum of twenty-five-percent future growth for each wiring system.
(9)
- (A) Provide electrical details and system details as required to completely describe the installation requirements and interconnection with other systems installed by other trades.
- (B) Particular attention should be paid to the installation of exterior lighting fixtures and special interior fixtures such as chandeliers, operating room lights, and the like.
- (C) Details of special grounding requirements should also be included.
(10)
(A) Provide riser diagrams or schematics showing the relationship of major components such as:
- (i) Panel boards;
- (ii) Transformers; and
- (iii) Service entrances.
- (B) Risers shall also be provided for special systems such as fire alarm and security systems.
- (C) For large or technically complex projects, provide one-line diagrams showing the source of power or service and the size and relationship of subcomponents such as distribution panels, breakers, fuses, switches, and routers to each major subpanel or element.
- (D) These diagrams shall also include the size of the wiring and conduit between elements and the ratings of the breakers, fuses, switches, and routers with enough information being provided to describe the limits of the capacity of the system and components.
(11)
- (A) Provide schedules for all lighting fixtures, transformers, panel boards, and specialty systems components.
- (B) Schedules shall include the voltage rating for each item, the capacity of the item, and any power losses or inefficiency of the fixture or equipment.
- (C) Equipment producing a heat loss (greater than one-half of one percent (.5%) of the equipment rating) shall include the manufacturer’s heat loss in BTUs on the schedule.
- (D) Equipment producing radio frequency interference (RFI) or electromagnetic interference (EMI) greater than that allowed by Federal Communications Commission regulation shall be noted on the schedule and any special shielding requirements necessary to control or eliminate this interference should be noted and detailed or specified.
- (E) Schedules shall be provided for each type of equipment or component, i.e., fixtures, transformers, and generators.
- (F) Provide a unique designator for each piece or type of equipment or fixture.
- (G) Ensure that the schedule title and designator are consistent with the plan labels.
- (H) In the header for each schedule, show the specification section number where that item can be found, i.e., Transformers-16460.
- (I) Panel board schedules shall be presented in a graphic format and shall include a designator for what each circuit feeds to facilitate the development of the panel board directory.
- (J) Do not limit the panel board schedule to a description of the quantity of certain size breakers such as circuits 1, 2, 3, 4 = 20A or provide 20-20A/1P breakers.
(12)
- (A) Where seismic restraints are required by code, provide details of typical acceptable restraint methods for piping and equipment.
- (B) Provide the basic design criteria for the restraint system including the seismic zone in which the project is located.
- (C) Where the code allows exemptions or exceptions based on pipe size or location of piping relative to the supporting structure, note the exceptions on the plan.
- (D) Designers are encouraged to lay out system piping and equipment in a manner which minimizes the need for costly restraints and eliminates where possible the hazard to the building occupants during a seismic event.
Codification Notes: "ASTM" means American Society for Testing Materials. "BTU" means British Thermal Unit. "EIA/TIA" means Electronic Industries Alliance/Telecommunications Industry Association. "HVACR" means heating, ventilation, air conditioning, and refrigeration. "LAN" means local area network. "NFPA" means National Fire Protection Association. "PVC" means polyvinyl chloride. "QC" means quality control. "RS/RL" means refrigerant suction/refrigerant liquid. "UPS" means uninterruptible power supply. "VTR" means vent through roof.