HomeMy WebLinkAboutM901-HVAC-SPECIFICATIONS-Rev.0All materials and workmanship shall comply with all applicable codes, specifications, local
ordinances, industry standards, and utility company regulations.
In case of a difference between Wilding codes, specifications, state laws, local ordinances,
ndustry standards, utility company regulations and Contract Documents, the most stringent shall
govern. The Contractor shall promptly notify the Owner in writing of any such difference.
Non Compliance: Should the Contractor perform any work that does not comply with requirements
of applicable building codes, state laws, local ordinances, industry standards and utility company
regulations, he shall bear all costs arising in correcting the defiaencies.
Applicable codes and standards shall include all state laws, local ordinances, utility company
regulations and applicable requirements of state plumbing and mechanical codes.
Except as otherwise specified herein, all piping work and material are to conform to the American
Standards Association Code for Pressure Piping.
All unfired pressure vessels furnished and installed under this Contract are to conform to all
requirements of the current edition of State of Indiana Rules and Regulations for Boilers and
unfired Pressure Vessels. Copies of all certificates of tests and construction as required by this
code to be turned over to Owner.
Permits: Contractor shall pay for all building permits required by work and permits. For opening
streets and for connection to various utilities, incudiing fees for water meter installation and any
other requirements necessary to carry out his work. Where streets or sidewalks are cut, same must
be repaired to at least as good a condition as they were before, all at the expense of this
Contractor. Permits shall be posted in prominent lace at the building site properly protected
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from the weather and physical damage.
GUARANTEE
Contractor shall, by accepting these Drawings and Specifications, guarantee
Contractor shall furnish all material and equipment as specified except where specified approval is
given by Engineer for substitution.
All material and equipment shall be installed substantially as shown on drawings and as required
within the intent of these Specifications.
All equipment piping, etc., shall be driptight, airtight free of vibration, counting, and other
objectionable noises.
Contractor shall guarantee all equipment accessories, and material furnished by him, including
installation for a period of one year from date of final acceptance against all defects in material and
workmanship.
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If any equipment, material, and/or pipe joints, connections, etc., fail or do not operate satisfactorily
or showundue wear, he will, upon being notified immediately remedy defect at his own expense.
WORK AND WORKMANSHIP
Provide all required labor, materials, equipment and Contractor's services necessary for complete
installation of systems required in kill conformity with requirements of authorities having
jurisdiction, all as indicated on Drawings and herein specified.
Finishedjob shall be functional and complete in ever detail, including an and all such items
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required for complete system whether or not these lams be specified or shown on the Drawings.
All such accessories
ssories and appurtenances shall be provided and installed at no additional cost to the
owner.
Special attention shall be given to accessibility of working parts and controlling parts. Adjustable
its shall be within easy reach. Removable arts shall have ace for removal.
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Each Contractor shall acquaint himself with details of all work to be performed by other trades and
take necessary steps to integrate and coordinate his work with other trades.
It is assumed that the Contractor is familiar with standard First Class installation procedures.
Therefore, these Specifications do not attempt to include every detail or operation necessary for
the complete installation.
It should be articular) noted that the terms"furnish"antl" "provide" interchangeable and that
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each of these means to provide, install and connect, unless otherwise stated.
Whenever tables or schedules show quantity of materials, they shall not be used as a guide to the
Contractor. Each Contractor shall be responsible for furnishing all material noted on the Drawings
and as specfied.
Contractor shall be responsible for the protection, safekeeping, and cleanliness of all existing
equipment, material, all located in spaces to be remodeled in which he is working. As part of his
responsibility, he shall provide the necessary covers, structures, etc., as required to keep all did,
water, moisture and dust from equipment. The method the Contractor proposes to use in protecting
equipment shall be coordinated with the Engineer and Owner's representative for approval before
any work is started. Any damage sustained during construction shall be corrected or replaced by
the Contractor.
Painting: Mechanical Contractor will provide prime painting on all ferrous metals such as support
steel or hangers for mechanical piping and equipment. Piping is not to be primed. Any finish
painting of mechanical work required, including painting of piping and steel exposed to outside
environment shall be painted by the Mechanical Contractor.
Platforms and supporting stands for mechanical equipment shall be furnished by the Mechanical
Contractor unless noted otherwise. Holes required for piping or ductwork of size Y or smaller shall
be cut in field at the expense of the Mechanical Contractor. Owner shall give approval prior to any
cutting. All larger holes shall be provided by others, as detailed in the structural drawings.
Ceiling and Wall Access Panels: Mechanical Contractor shall cut and patch finished areas for
panels as required by the Mechanical Contractor. Provide access panels as specified where
Mom, or required for access to coils, valves, etc.
A. Acoustical the Wall or Ceiling: 24" x 12" unless othervse notetl. Constructed to receive
tile to match ceiling. Milcor Style A.
B. Plastered Wall or Ceiling: 24" x 12" unless otherwise noted. Constructed to receive
plaster to match adjacent finish. Milcor Style B.
Cutting and Patching: Mechanical Contractor shall cut and patch finished areas as required by the
Mechanical Contractor. Cut structural materials only where required after approval from the
Architect and Engineer.
Disposition of existing equipment which is ro be removed and salvaged shall remain the property of
the Owner and be stored by the Contractor as directed by the Owner.
Temporary carillons or barriers required to protect existing building or facilities shall be provided
by the Mechanical Contractor. Mechanical Contractor shall coordinate necessity and location of
such protection with Owner.
RELEASED FOR CONSTRUCTION
Subject to compliance with all regulations
of State and Local Codes
City of Camel (�
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DATE: \ 10/16/19
Roof openings and flashing required by Mechanical Contractor shall be by Mechanical Contractor.
Mechanical Contractor is responsible for the correct size and location of same. Counterflashing by
the Mechanical Contractor.
Pads and foundations for mechanical equipment shall be formed and poured by the Mechanical
Contractor. Mechanical Contractor shall verify pars and all anchoring devices.
Excavating and backfilling for mechanical work shall be by the Mechanical Contractor.
All outside downspouts shall be by the General Contractor. Downspout shoe shall be by the
Mechanical Contractor.
Kitchen equipment shall be set in place by the Mechanical Contractor. Roughinshall be by the
Mechanical Contractor. Final connections shall be by the Mechanical Contractor.
Sanitary vent pans and flashing by the Mechanical Contractor.
Louvers shall be furnished by the Mechanical Contractor. Size and location shall be verified by the
Mechanical Contractor.
Roof curbs and bases for ventilators, roof intakes and relief and fans shall be furnished by the
Mechanical Contractor.
DRAWINGS
Mechanical Drawings show general arrangement of all piping, equipment and appurtenances.
They shall be followed as closely as actual building construction and work of other trades will
permit. Mechanical work shall conform to requirements shown on all Drawings. General and
Structural Drawings shall take precedence over Mechanical Drawings. Because of the small scale
of Mechanical Drawings, it is not possible to indicate all offsets, fittings and accessories which may
be required. Contractor shall investigate structural and finish conditions affecting work and shall
arrange his work accordingly, providing such fittings, valves and accessories as may be required to
meet such conditions without additional cost
to the Owner.
Each Contractor and Subcontractor shall study all drawings applicable to this work so complete
coordination between tradeswill be affected. Special attention shall be given to points where ducts
cross other ducts or piping, where lights fit into ceilings and where pipe, dicta, and concut pass
thou walls and columns.
It is the responsibility of each Contractor and Subcontractor to leave necessary room for other
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trades. No extra compensation will be allowed to corer the cost of removing piping, contluit, tlucts,
or equipment found encroaching on space required by others.
MINOR DEVIATIONS
For the purpose of Garry and legibility, Drawings are essentially diagrammatic although size and
location of equipment and piping are drawn near to scale wherever possible. Verify Contract
Document information at site.
Drawn s indicate required sizes and points of termination of es and duct and suggested
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routes. It is not the intention of Drawings to indicate all necessary offsets. Install work in a manner
to conform y structure, not avoid ale from Dra preserve headroom and keep openings and
passageways clear. Do not scale from Drawings.
Equipment and piping supports shall be attached to structural members (beams, joists, etc.) Rather
than to floor or roof slabs. Do not attach hangars to bottom chord of structural members.
Where piping is suspended from new concrete construction, furnish, locate, and install black steel
channel type concrete inserts welded to cover late. Inserts shall provide for horizontal and vertical
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adjustments.
Where piping is suspended from existing concrete or masonry construction, use expansion shields
to attach pipe supports to construction. Expansion shield bolt diameter shall be the same size as
support rod diameter hereinafter specifietl. Expansion shields shall be Star Double, Star Gloxin,
Star Loxin or equal.
DEMOLITION AND REMOVAL OF EQUIPMENT
Contractor shall remove all equipment, pipes, ductwork, hangers and support for portion of
mechanical system in present Wilding as shown on Drawings and/or implied by nature of the work
indicated to be removed.
Contractor shall properly support remaining portions of work. Contractor shall provide valves,
plugs, vents, etc. as required for complete operating system. Al pipes, ductwork, etc., removed
shall become the property of the Contractor and shall be removed form the premises unless
specified otherwise.
Contractor shall cap all abandoned piping which cannot be removed. This would pertain to piping
which runs into concrete floors, thou outside walls below grade, etc.
BALANCING
Work shall be provided by the Mechanical Contractor.
General: Balance and adjust air and hydronic systems to achieve comfort and proper operation of
systems and to capacities indicated on the drawings.
A. Use procedures as outlined in the National Standards for Field Measurements and
Instrumentation, current volume, as published by the Associated Air Balance Council.
Certify balance of system to be complete and accurate as shown and submit report to
Engineer for review and approval.
B. If a piece of equipment is not operating in a satisfactory manner, coordinate with
manufacturer to repair or adjust as necessary.
C. Report to Engineer if system or piece of equipment cannot be adjusted to operate
satisfactorily.
D. Test and Balance shall be provided by a NEBB, AABC or TABB certified Balance
Contractor.
PIPING
Install chrome plated pipe escutcheons on exposed pipe at floors, walls, and ceilings.
Piping in return air plenums shall be suitable for use in such spaces and shall meet x/ao
flame/smoke rating or be completely covered by a material that does meet this rating in
accordance with cotle.
Furnish and install supports, guides, and anchors required for proper support of pipes.
Lay underground piping only on solidi undisturbed ground or compacted granular bedding. Tamp
bottom of trench. Grade for required slope. Cover pipe wth compacted granular material.
Support vertical runs with hanger adjacent to elbow
Support horizontal pipe with hot rolled steel rods (ASTM A 107). Spacing:$" - 2" pipe, 8'-Von
centers with a3/" diia. Rod 26" - 3" pipe, 12' ON on centers with $" diameter rod.
Hangers: Iron or steel pipe, Grinnell 41 or equal; copper pipe, Grinnell #97CP.
Sanitary Waste and Vent Piping: 1W and larger - Schedule 40 PVC, or hubless cast iron. (See
Item 92 above).
Domestic HIM and Cold Water: Type "L" copper above slab; Type "K" below grade, wrought fittings
and soldier per code.
Gas: Schedule 40 black steel, malleable iron screwed fittings.
Valves:
A. Hot and Cold Water: Bronze ball, Crane 712 or equal.
B. Gas: Lubricated plug cock. Walworth 1700 or equal.
Use dielectric couplings when joining dissimilar piping materials.
Cleaning and Testing
A. Swab to remove dirt or scale
B. Flush water system until water runs clear
C. Test all piping
D. Test all concealed work before covering
E. Repair all leaks and reapply fast
INSULATION
Pipe Insulation
A. Service: Domestic hot andcoldwater, and cold condensate drains. Material:$" flexible
elastomeric. (Armailex II) 25150 flame smoke rating.
B. Service: Interior refrigerant lines. Material:/2" flexible elastomeric. (Armaflex II) 25/50
flame smoke rating.
C. Service: Exterior refrigerant lines. Material: In flexible elastomeric( Armailex ll) with
.020" Aluminum protective jacket, unless otherwise noted.
D. Apply insulation only after pipes have been tested and cleaned.
E. Install insulation in a neat workmanlike manner.
R Refrigerant piping insulation shall be continuous thou pipe hangars, and shall not be
compressed or misshapen by the hangar.
Ductwork Insulation
A. Service: Air conditioning and heating supply, fresh (outside) air in conditioned spaces -
insulate entirely. Material: 0J51bi p. Flexible fiberglass 1h" thick with flame resistant
aluminum inch foil jacket.
B. Service: Air conditioning and heating supply and return, fresh (outside) air in
unconditioned spaces - insulate entirely. Material: 0.751bi ft. Flexible fiberglass 2"
thick with flame resistant aluminum kraft foil jacket. IRS Minimum)
NOTE: All insulation: rating not to exceed 25 flame, 50 smoke and rated for use in return
air plenum.
Service: Refrigerant required by selected equipment.
Maximum design: Pressure 525 mg; temperature 300°F.
Piping (above ground): Soft, seamless copper linesets as recommended by air conditioner
Manufacturer, cleaned, dehydrated and sealed according to manufacturer's recommendations.
Conceal all refrigerant piping unless otherwise noted. Contact Engineer for alternatives if
concealment is not possible.
Perform an initial test of the refrigeration system as follows:
A. Hold pressure for 12 hours and check for loss of pressure. Certify readings. Notify
equipment manufacturer of test and allow observance.
B. Draw and hold 500 micron vacuum. Hold for 12 hours and check for loss of vacuum.
Notify equipment manufacturer of test and allow observance.
C. If leaks) is defected, entire refrigerant system shall be checked with leak detector.
Caution: Any Freon that might be present in area can interfere with detectors. Area
must be thoroughly ventilated.
D. Repair any leaks and repeat above procedure. Repairing leaks under pressure shall
not be done. Brazed joints shall be repaired by using new material.
E. Insulate all interior refrigerant suction piping with In flexible elastomeric insulation.
F. Insulate all exterior refrigerant piping with 1"flexible elastomeric insulation and provide
a .020" aluminum jacket sealed weather tight.
"LOW PRESSURE" DUCTWORK AND ACCESSORIES
Construct rectangular duct of first quality materials In accordance with SMACNA-HVAC Duct
Construction Standards, Metal and Flexible. Crossbreak except where rigid insulation is specified
Construct round duct according to recommendations of ASHRAE Guide. Round duct should be
galvanized spiral unless noted otherwise. Longitudinal lockseamduct is not acceptable.
Keep all ductwork, duct system and equipment openings covered with adhesive duct protective
wrap like VentureTape 1512. until system startup. This is to prevent intrusion of construction dirt
and debris into the duct system, and HVAC equipment.
Phenolic duct by Pal -Duct or Kool-Duct is an acceptable alternative to sheetmetal duct and
insulation in concealed spaces. Use flanged joints. Submit detailed duct drawings for engineer
review.
Support horizontal duct in wall with bank iron strap hanger if width is under 1an and with shelf type
bracket if over 18'.
Support duct suspended from roof structure with band -type hangers if maximum is inside 48" and
with trapeze type hangers if war 48".
Fittings:
B. Elbows (less than 24" witle): Use standard radius elbow. Radius shall be 1.5 times
width of fittings.
C. Elbows (24"wide and over): Shall be square elbows with turning vanes. Elbows less
than 36" wide shall have single -bladed vanes. Elbows 36" wide and over shall have
double bladed vanes in airfoil pattern.
D. Main tee connections shall be radius or square depending on the size duct reduced to.
Adjustable splutter damper shall be provided ahead of tee.
E. Branch tee connections shall be 45-branch take offs. Provide balancing dampers in
branches unless otherwise directed to delete them.
F. Transitions, raises and drops shall be built so that change in direction of side of duct
does not exceed 300 angle to projected same side.
Provide flexible connections (FC) at each inlet and outlet duct connection to every piece of fan
equipment. Fabric fastened to metal with double lock seam. Fabric for ordinary HVAC uses to be
waterproof, fire retardant and suitable for temperatures of 200°F. Manufacturers: Curb Dyne,
Vandabrics or equal.
Runs of flexible duct shall not exceed 5'-0". Flexible duct shall not be used as an elbow. Provide
sheet metal elbow at diffuser neck where tap is not out of the bottom of the supply main.
Furnish and install balancing dampers ED) for each supply air runout and at additional locations,
as shown on the drawings. Construction to be galvanized steel, two gauges heavier than duct.
Shaft shall be steel with brass bearings. Blades shall not exceed 12" wide and 48" long. Frames of
same gauge metal are required where two blades or more are used.
Balancing dampers to have locktypedamper operator and linkage as best suits construction and
access conditions. Dampers with accessible operators to be provided with locking damper
quadrants complete with locking nuts and graduated scale. Dampers with non accessible
operators provided with Young Series 300 concealed regulator and cover plate completewith work
gear or linkage as required for smooth damper operation. Dampers in underslab tlucts provided
with Young Series 335 adjustable cover regulators.
A. Exposed to View: Type 304, stainless steel sheet, No.4 finish.
B. Concealed: Carbonsteelsheet.
C. Welded seams andjoints.
D. Pressure Class: Positive or negative 2-inch 111(500 Pa)
E. Minimum SMACNA Seal Class: Welded seams, joints, and penetrations.
F. SMACNA Leakage Class: 3.
Engineered, factor fabricated dints stems are an acceptable alternative. Send specs of such
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duct systems to engineer for review prior to bidding.
Duct Sealing: Comply with SMACNA standard duct sealing requirements for class "A" ducts for all
Ol supply, return and exhaust ductwork.
A. Water -Based Joint and Seam Sealant:
1. Application Method: Brush on.
2. Solids Content: Minimum 65 percent.
3. Shore A Hardiness: Minimum 20.
4. Water resistant.
5. Mold and mildew resistant.
6. VOC: Maximum 75 gL (less water).
7. Maximum Static -Pressure Class: 1D-inch wg (2500 Pa), positive and negative.
8. Service: Indoor or outdoor.
9. Substrate: Compatible with galvanized sheet steel (both PVC coated and bare),
stainless steel, or aluminum sheets.
10. Tape shall not be acceptable.
Fire Dampers (FD): At each penetration through fireratedpartitions, provide fire dampers where
intlicatetl on draw ngs to meet or exceed barrier rating.
Fire dampers shall be type "For, UL classified and meet all NFPA criteria for primary fire dampers.
Frame shall be 20 gauge minimum. Blades shall be 24 gauge minimum. Blades shall not infringe
on duct free area for aitllow. Fusible link shall berated at 165°F. Closure springs shall be 301
stainless steel. Finish shall be mill.
SMOKE DAMPER
A. Fabricate in accordance with NFPA 90A and UL 555S, and as indicated.
B. Normally Close Smoke Vent Dampers: Curtain type, opening by gravity upon actuation
of electro thermal link, flexible stainless steel blade edge seals to provide constant
sealing pressure.
C. Normally Open Smoke Vent Damper: Curtain type, closing upon actuation of electro
thermal link, flexible stainless steel blade edge seals to provide constant sealing
pressure, stainless steel springs with locking devices ensure positive closure for units
mounted horizontally.
HVAC EQUIPMENT
Refer to Plans and Schedule sheets. If equipment other than basis of design (scheduled
Manufacturer) is being considered, notify the Engineer and send specs for review.
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M901