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M-010
<br />MECHANICAL SPECIFICATIONS
<br />MECHANICAL SPECIFICATIONS (cont.)
<br />P. Operating and Maintenance
<br />1.This contractor shall furnish competent personal instruction to the owner's operating personnel for a
<br />period of two (2) days in the proper operation of the heating and air conditioning equipment. He shall
<br />also supply the owner with copies of an operation manual containing the following:
<br />a. Step-by-step procedures for start-up and shut-down for each system and piece of equipment.
<br />b. Performance data, curves, ratings.
<br />c. Wiring diagrams.
<br />d. Manufacturer's descriptive literature.
<br />e. Automatic controls with diagrams and written description of operation.
<br />f. Manufacturer's maintenance and service manuals.
<br />g. Plumbing fixtures.
<br />h. Spare parts and replacement parts list for each piece of equipment.
<br />i. Name of service agency and installer.
<br />j. Final approved shop drawings.
<br />Q. Roof Curbs (as manufactured by Pate, Roof Products and Systems and Thycurb)
<br />1.Curb shall be 18 gauge galvanized steel with continuous welded seams, wood nailer, counterflashing,
<br />R-8 minimum and liner insulation. Top of curb shall be a minimum size as shown in detail on
<br />drawings, but not less than 14” above the high point of roof where curb attaches.
<br />2.Provide curb for all roof penetrations of ducts and piping.
<br />3.All cutting and patching of existing roof shall be by the owner's roofing contractor and paid for by the
<br />mechanical contractor.
<br />4.Curb shall be installed with top level. Curb base to match roof pitch.
<br />Section 200523 - Piping and Valves
<br />A. General
<br />1.Furnish all material, labor, equipment, and accessories as required to install complete fire protection,
<br />plumbing, and HVAC piping systems as indicated on drawings and in these specifications.
<br />2.Install in full accordance with local code requirements, see other specification section for additional
<br />requirements and install in accordance to manufacturer's recommendations and requirements.
<br />B. Connections to Equipment Furnished by Others
<br />1.Provide valved water and/or gas connection for equipment furnished by other contractors or owner.
<br />2.Include accessories required by code, drawings and manufacturer's installation instructions.
<br />3.Fully coordinate with lab equipment, pool equipment, kitchen equipment, and laundry equipment
<br />suppliers and confirm all rough-in requirements prior to starting work.
<br />C. Installation
<br />1.All piping shall be installed parallel with or perpendicular to the building walls. All vertical risers shall be
<br />installed plumb and straight. All piping above accessible ceilings shall be installed as high as possible
<br />and at height to allow sufficient space for ceiling panel removal.
<br />2.All piping shall be installed with pitch in the direction of flow of not less than 1” in 40'-0", except as
<br />otherwise shown. It must be possible to drain every portion of the piping system.
<br />3.Run lines as direct as possible and avoid unnecessary offsets. However, if offsets are required in
<br />order to obtain maximum headroom or to avoid conflict with other work, they shall be made as required
<br />or as requested by the architect without addition cost to the owner. The architect reserves the right to
<br />make minor changes in the location of piping and equipment during the roughing-in, without additional
<br />cost to the owner. All changes proposed by others shall be approved by the architect.
<br />4.Lines shall be cut accurately to measurement at the site and worked into place without springing or
<br />forcing. Sufficient offsets, pipe loops or expansion joints between anchor points shall be provided as
<br />needed, whether or not shown, to limit stresses and control movement of lines subject to the thermal
<br />expansion.
<br />5.Before any piping is installed, it shall be up-ended and pounded to remove any foreign matter present,
<br />and shall be swabbed, if necessary, for thorough cleaning. After installation and before final
<br />connections made, all piping system shall be flushed with a material that is not injurious to either pipe
<br />or equipment. (See also “Tests and Adjustments.”)
<br />6.Pipe to be threaded shall be cut square and full threaded with clean-cut tapered threads and shall be
<br />reamed after threading. Threaded connections shall be made with pipe thread compound applied to
<br />the wall threads only.
<br />7.The edges of pipe to be welded shall be machine beveled wherever possible. Before welding, the
<br />surfaces shall be thoroughly cleaned. The piping shall be carefully aligned. No metal shall project
<br />within the pipe. Mitered joints are prohibited. Only factory formed fittings shall be used. Elbows shall be
<br />long radius type. Flanges shall be welding neck type. Mitering of the pipe to form elbows or the
<br />notching of straight runs to form the tee connection will not be permitted.
<br />8.Unions or companion flanges shall be installed in all connections to equipment, automatic valves, etc.,
<br />as necessary to permit removal of equipment and specialties for servicing, repairing or cleaning. It
<br />shall be possible to remove any piece of equipment by removing only one or two sections of piping.
<br />9.Valves shall be provided in suitable locations at each item of equipment, branch circuit, riser, or
<br />section of piping as indicated or required for proper and safe operation of the system and to facilitate
<br />maintenance and/or removal of all equipment and apparatus. On horizontal pipe runs, install all valve
<br />stems vertically up where possible and in no case shall the stems be turned more than 90 degrees
<br />from the vertically up position.
<br />10.Drain valves shall be provided at all low points, trapped section, and on the equipment side of all
<br />branch valves to permit draining of all parts of all liquid piping systems. Drain valves shall have
<br />threaded hose ends with cap and chain. Drain piping shall be provided from pump glands, relief
<br />valves, etc., to spill at the floor over floor drains or other acceptable discharge points. The drain line
<br />shall terminate with plain, unthreaded end with a minimum 2” air gap at floor drain.
<br />11.Taps (half couplings or tees) shall be provided as necessary to permit the installation of temperature
<br /> control instruments, thermometers, pressure gauges, air vents, etc.
<br />12.Connections between copper piping and screwed ferrous equipment connections or screwed ferrous
<br />piping systems shall be made as follows:
<br />a. For stationary non-rotating, non-vibrating equipment connections: dielectric unions.
<br />b. For rotating or vibrating equipment connection: cast brass adapter and bronze flanges with
<br />dielectric separation of flanges and bolts.
<br />c. Connections between copper piping and ferrous equipment flanges or flanged ferrous piping
<br />systems shall be made using bronze companion flange with dielectric separation of flanges and
<br />bolts.
<br />d. Brass or bronze valves in ferrous piping will not require dielectric separation.
<br />e. Nipples between copper piping and equipment or fixture connection fittings shall be brass, not
<br />galvanized steel.
<br />13.All pressure piping systems shall be installed to conform to the requirements of the local AHJ or state's
<br />pressure piping system code.
<br />14.All excavations for installation of pipe shall be open trench work and shall be kept open until piping has
<br />been inspected, tested, and accepted.
<br />15.All piping passing thru cast-in place concrete construction shall be sleeved to provide a minimum of
<br />1/2"annular space around entire pipe to be sleeved. Space between sleeve and pipes in foundation
<br />walls shall be tightly caulked or mechanical seal to give a waterproof penetration.
<br />16.Any piping resting on or coming in contact with building structure shall be insulated at that point to
<br />prevent telegraphing of sound.
<br />17.Metal piping laid in corrosive fill shall be encased in concrete or in split tile.
<br />18.Threaded joints shall conform to American Taper Pipe Thread ASA-B2.1-1960. All burrs shall be
<br />removed, pipe ends shall be reamed or filed to size of bore and all chips removed. Pipe cement shall
<br />be used only on male threads.
<br />19.Unions shall have metal seats for drainage systems and metal to metal ground seats on water system.
<br />20.Furnish and install valve in branches to sill cocks, toilet rooms and other fixture groups. Plumbing
<br />fixtures shall have wheel or screwdriver stops as specified.
<br />21.All piping shall be rigidly supported and shall not be loose or shaky.
<br />D. Sanitary, Waste and Vent Sewers
<br />1.Install sewers, stacks, vents, drains, etc., as indicated on the drawings.
<br />2.All drainage and vent piping shall be constructed and run as direct as possible, protected from contact
<br />with slag or cinders and wherever practicable, shall be located so as to be accessible for inspection.
<br />The actual runs and locations of drains, soil waste, and leader piping shall be installed as to meet with
<br />the various conditions at the building and any work necessary to conceal pipes or clear pipes of other
<br />trades shall be done as directed by the architect.
<br />3.Sewers to be pitched a minimum of 1/4" per foot for 3" sizes and under and 1/8" per foot for 4" sizes
<br />and larger or to slope as indicated on drawings. Kitchen sanitary waste shall be sloped ¼” per foot for
<br />all pipe sizes.
<br />Section 200523 (cont.)
<br />4. All piping shall be correctly aligned before joins are made. All changes of direction in drainage and
<br />vent piping shall be made by means of “Y” branches and 1/6, 1/8 or 1/16 bends. No lines shall be run
<br />with unnecessary bends or offsets and where changes in direction are unavoidable; they shall be
<br />made by use of proper fittings. Single and double sanitary tees, 1/4 bends and 1/8 bends may be used
<br />in vertical sections when direction of flow is from horizontal to vertical. Changes in direction and branch
<br />connections shall be made with approved drainage fittings compatible with the piping system material
<br />in which it is installed.
<br />5. Install cleanouts at base of each vertical waste and rainwater stack, each change in a direction of
<br />piping greater than 45 degrees, within five feet (5'-0”) of main sewer after exiting the building, or as
<br />shown on drawings. Cleanouts on underground lines shall extend up flush with finished floor or grade.
<br />Provide cleanouts not over 50'- 0” on center along straight runs. Cleanouts shall be size of pipe to
<br />which it is installed up to 6” in diameter. Pipe over 6” in diameter shall have a 6” cleanout.
<br />6. Vent terminals shall be terminated at least 18” above roof. Each vent terminal shall be made water
<br />tight with the roof by using sheet copper (8 ounces PSF) with base not less than 16” diameter and
<br />collar full height of pipe or rubber boot pipe flushing. Where vents are 4” or larger, flashing may be
<br />turned over into top of pipe without gap. Furnish flashing to general contractor for building into roofing
<br />material.
<br />7. All fixtures and sanitary drains shall be vented as indicated on drawings and in accordance with code.
<br />Vent pipes, where not vertical shall have continuous slope up to vent through roof.
<br />8. Openings in pipes shall be properly plugged when work is not in progress
<br />9. Sewers shall be laid with full length of each section resting on a solid bed. Where necessary to obtain
<br />a firm support, the pipe shall be bedded on select material and thoroughly tamped. As pipe is laid, care
<br />shall be exercised to keep interior of pipe clear of foreign matter. Where trenching for pipe is
<br />excessively wide, the contractor shall, at his own expense, embed the pipe in concrete to support the
<br />added load of backfilling.
<br />10. Pipe Schedule:
<br />a. Below grade inside building
<br />1) Service weight - cast iron pipe ASTM A-74-82 with ASTM C-564-80 neoprene compression
<br />joints or no-hub CISPI with clamps. All kitchen sanitary shall be cast iron only.
<br />2) PVC-DWV Sch. 40 solid core pipe, ASTM D-1785 with ASTM D-2665 DWV solvent weld
<br />socket fittings.
<br />b. Above grade and vent material shall be as follows:
<br />1) No-hub cast iron pipe CISPI 1-301-78.
<br />2) PVC-DWV SCH. 40 solid core pipe, ASTM D-1785 with ASTM D-2665 DWV solvent weld
<br />socket fittings.
<br />3) 1-1/4” and smaller, SCH. 40 galvanized steel pipe ASTM A-53/A53M, Type E with screwed
<br />fittings ASME B-16.4, class 125.
<br />c. Site below grade sewers
<br />1) No-hub cast iron pipe CISPI 1-301-78.
<br />2) PVC-DWV SCH. 40 solid core pipe. ASTM D-1785 with ASTM D-2665 DWV solvent weld
<br />socket fittings.
<br />3) Up to 15" - PVC pipe, ASTM D-3034 SDR 35 with ASTM F477 gasket joints.
<br />4) 18" and over - reinforced concrete pipe (RCP) ASTM C 76-83 with ASTM C 443-79 rubber
<br />gasket joints.
<br />d. Expansion Joints and deflection fittings
<br />1) Ductile-Iron, flexible expansion joints; AWWA C110 or AWWA C153 with two gasketed
<br />ball-joint sections and one or more gasketed sleeve sections rated for 250 psig minimum.
<br />2) Ductile-Iron expansion joints; three-piece assembly of telescoping sleeve with gaskets and
<br />restrained-type, ball-and-spigot end sections; AWWA C110 or AWWA C153; rated for 250
<br />psig minimum.
<br />3) Ductile-Iron deflection fittings; compound coupling fitting with ball joint, flexing section,
<br />gaskets, and restrained joint ends; AWWA C110 or AWWA C153; rated for 250 psi minimum
<br />and up to 15 degrees of deflection.
<br />11. PVC piping shall not be installed unless permitted by code and shall not be installed in return air
<br />plenums.
<br />E. Domestic Water Piping
<br />1. Install domestic water piping as indicated on drawings. Include all fittings, valves, hangers, and other
<br />accessories including water meter and backflow preventer. Extend domestic water piping to all
<br />fixtures and equipment required for complete installation.
<br />2. Include unions, or other disconnect means, stops or valves for isolation of fixtures and equipment.
<br />Valves to be fully compatible with piping for service intended as manufactured by Nibco, Crane or
<br />Milwaukee. Include hose or drain valves at low points where fixtures cannot be used for drainage.
<br />3. Install shock absorbers at each quick closing fixture and where required to prevent water hammer as
<br />manufactured by J.R. Smith, Sioux Chief or Zurn. Absorbers shall be installed in vertical upright
<br />position.
<br />4. Hangers on insulated pipe to be outside of insulation, sized accordingly with a sufficient saddle to
<br />protect insulation as manufactured by Grinnell or Michigan.
<br />5. Pipe Schedule:
<br />a. Below grade outside building (2-1/2” and less).
<br />1) Soft copper ASTM B88, Type “K” without joints.
<br />2) PEX tube and fittings with stainless steel crimp rings. No joints for below grade installation.
<br />3) PP, SDR11 socket fittings; and fusion-weld joints.
<br />4) Piping may be routed inside a larger conduit so pipe can be removed without excavation.
<br />5) If maximum length of pipe available is not long enough and fitting needs to be installed
<br />underground, all fittings shall be stainless steel mechanical fittings wrapped with
<br />polyethylene encasement and encased in concrete.
<br />b. Below grade inside building (2-1/2” and less)
<br />1) Soft copper ASTM B88, Type “K” without joints.
<br />2) PEX tube and fittings with stainless steel crimp rings. No joints for below grade installation.
<br />3) CPVC, Schedule 40; socket fittings and solvent cement joints.
<br />4) Piping may be routed inside a larger conduit so pipe can be removed without excavation.
<br />c. Above grade (2” and less)
<br />1) Type “L” hard copper ASTM B 88-832 with wrought copper fittings ASTM B 16.22 1980 and
<br />non-lead or antimony solder joints.
<br />2) CPVC, Schedule 40; socket fittings and solvent cement joints.
<br />3) PEX tube and fittings with stainless steel crimp rings.
<br />6. Flush, vent and sanitize all water piping with chlorine as required per AWWA, local building
<br />department and health department codes.
<br />7. Domestic hot and cold water piping under concrete floor to be covered with sand so that piping will not
<br /> become embedded in the floor slab.
<br />8. All piping under concrete floor shall be type "K" soft copper, continuous. Splices or fittings will not be
<br /> allowed.
<br />9. Extreme caution must be taken so that no copper piping and insulation under concrete floors becomes
<br />crushed, cut, split or deformed during the pouring of the floor slab.
<br />10. Allow 1-1/4” per 100 feet of length for expansion in domestic hot water lines.
<br />11. All piping in return air ceiling plenums or walls shall be plenum rated materials.
<br />F. Gas Piping
<br />1. Install gas piping in accordance to the latest version of the National Fuel and Gas Code, NFPA and
<br />local gas companies' requirements and State and local codes.
<br />2. Include meter, regulators, valves and connect to all gas using equipment.
<br />3. Equipment connections at each unit shall include gas cock, union, dirt leg, and reducer to unit
<br />connection size. For above low pressure gas systems, provide pressure reducing valve at equipment
<br />or low pressure branches.
<br />4. Construct concrete base to below frost line for large meter installation.
<br />5. Pipe Schedule:
<br />a. Below grade, outside building (<60 psi)
<br />1) Polyethylene plastic ASTM D-2513 with stab couplings or fusion weld joints.
<br />2) Black steel Schedule 40 pipe with wrought-steel fittings and welded joints, or mechanical
<br /> couplings. Coat pipe and fittings with protective coating for steel pipe. Install cathodic
<br /> protection anode on service line.
<br />b. Below grade, outside building (�� 60 psi)
<br />1) Polyethylene plastic ASTM D-2513 with stab couplings or fusion weld joints.
<br />2) Schedule 40 black steel coated and wrapped with welded black steel fittings. Install cathodic
<br /> protection anode on service line.
<br />Section 200523 (cont.)
<br />c. Above grade, low pressure (�� 2 psi)
<br />1) Schedule 40 seamless black steel pipe, beveled ends.
<br />a) 2” and smaller - screwed fittings, wrought iron.
<br />b) 2-1/2” and larger - welded fittings, black steel.
<br />d. Above grade, medium pressure (2 - 10 psi)
<br />1) Schedule 40 black steel with welded black steel fittings.
<br />e. Underground, below building
<br />1) Black steel Schedule 40 pipe with wrought-steel fittings and welded joints. Pipe in
<br />containment conduit which is steel pipe with wrought-steel fittings and welded joints coated
<br />with protective coating for steel pipe. Conduit to be vented to atmosphere at both ends.
<br />Install cathodic protection anode on conduit.
<br />f. Valves shall not be located above ceiling spaces used as a return air plenum.
<br />g. Exterior exposed bare steel pipe shall be painted with a primer coat and two (2) coats or rust
<br />inhibitive paint, color as selected by Architect.
<br />h. All welding shall be performed by state certified welders.
<br />i. All piping in non-accessible spaces shall have welded joints.
<br />G. Refrigerant Piping
<br />1. Mechanical refrigeration equipment including refrigerant piping, valves, and relief valves, shall be in
<br />accordance with the requirements of the current edition of the American Standards Association's
<br />“Safety Code for Mechanical Refrigeration.”
<br />2. All refrigerant pipe used in this installation shall be sealed and contain a holding charge of nitrogen. It
<br />shall remain sealed until immediately before installation: refrigerant piping shall be cut with a tube
<br />cutter only and shall be reamed after cutting. Hack saw cuts are prohibited.
<br />3. After installation, the refrigerant piping shall be pressurized to 75 psig with nitrogen. All joints must
<br />then be thoroughly leak tested using an electronic leak detector, a halide torch, or soap bubbles. After
<br />the refrigerant piping has been leak checked, it should be evacuated twice by either the deep
<br />evacuation or the triple evacuation method. The unit manufacturer will recommend the method to be
<br />followed. After the evacuation, the piping shall then be charged with the system refrigerant.
<br />4. Isolate piping from structure with 1” insulation between all piping and support points.
<br />5. Install piping in as short and direct arrangement as possible to minimize pressure drop.
<br />6. Install isolation valves and unions to allow removal of solenoid valves, pressure-reducing valves,
<br /> expansion valves, and at connections to compressors and evaporators.
<br />7. Install flexible connectors at inlet and discharge connection of compressors.
<br />8. Fill the pipe and fittings during brazing with nitrogen or carbon dioxide to prevent formation of scale.
<br />9. Pipe Schedule:
<br />a. Piping shall be refrigerant grade type "L" copper with silver soldered joints or brazed joints. Pipe
<br />per manufacturer's piping diagrams and recommendations. Copper to copper refrigerant piping
<br />joints shall be made using a phosphorus bearing alloy such as “SIL-PHOS” without flux. Copper
<br />to brass and copper to steel joints shall be made using a 45 percent silver alloy such as
<br />“EASY-FLO” with flux.
<br />H. Condensate Drain Piping
<br />1. Trap shall be installed near equipment if not integral with equipment. Install piping at a uniform slope
<br />of 1” in forty feet downward indirection to drain.
<br />2. Pipe Schedule:
<br />a. Piping of all sizes shall be type L hard copper pipe with brass or copper fittings and soldered joint.
<br />b. Piping of all size for mechanical rooms, roof and non-return air plenum rated ceiling space shall
<br />be type PVC, schedule 40 with solvent weld socket fittings.
<br />I. General Hydronic and Domestic Valves and Strainers
<br />1. Ball valves 2” and smaller shall be 600# WOG, 150# SWP, two-piece, full port cast bronze or forged
<br />brass body, chrome plated brass ball, replaceable “Teflon” or “TFE” seats and seals, blowout-proof
<br />stem, vinyl-covered steel handle and have threaded ends. Valves shall be Hammond 8901, Milwaukee
<br />BA-125, Stockham S-207, Nibco T-585, or Apollo 77-100.
<br />2. Check valves 2” and smaller shall be 150# W.S.P. bronze, swing check, bronze seat, screwed pattern.
<br />Valves shall conform to MSS SP 80, type 4. Valves shall be Crane 141, Hammond IB-946, Milwaukee
<br />510, Nibco T-43, Stockham B-331B, Lunkenheimer 230, or Jenkins 352.
<br />3. Balance valves 2” and smaller shall be 125#, bronze body screwed pattern ball type circuit setter
<br />valves with memory stop, straight pattern with Schrader valve connection for differential pressure
<br />Valves to be Taco or Bell & Gossett.
<br />4. Strainers 2” and smaller shall be 250#, cast iron body, screwed pattern with 20 mesh stainless steel or
<br />Monel screens, strainers to be Muessco No. 11, Armstrong, Crane, Sarco, or Hayward.
<br />5. Pressure reducing valves shall be as specified on drawings or an approved equal by Conbraco, Watts
<br />or Zurn.
<br />J. Gas Valves
<br />1. Gas cocks 2” and smaller shall be 175# WOG, cast iron, screwed body pattern. Valves shall be UL
<br />listed for gas service. Valves shall be Dezurik series 425 with “RS-49” plug, seals and lever handle.
<br />2. Gas cocks 2-1/2” thru 4” shall be 175# WOG, cast iron, flanged body pattern. Valves shall be UL listed
<br />for gas service. Valves shall be Dezurik series 425 with “RS-49” plug, seals and lever handle.
<br />3. Pressure reducing valves shall be line size and to reduce pressure from supplied side to equipment
<br />pressure requirements. Valves shall be as specified on drawings or an approved equal by American
<br />Meter Company, Fisher Control Valves or Invensys.
<br />Section 200593 - Testing, Adjusting and Balancing
<br />A. General
<br />1. After installation, check all equipment and perform start up in accordance with the manufacturer's instructions.
<br />2. All piping shall be tested and free of leaks as required by the local authority having jurisdiction.
<br />3. Work that is scheduled to be concealed or insulated shall remain uncovered until required tests have been completed. If the
<br />construction schedule requires, arrange for tests on sections of the system at a time.
<br />4. Balance all systems, calibrate controls, check for proper operation and sequence under all conditions and make all
<br />necessary adjustments.
<br />5. Instruct owner in operation of systems and submit operating and maintenance manual for all equipment and systems.
<br />6. Submit air and water balance report from independent AABC or NEBB certified subcontractor for all air and water systems
<br /> per AABC or NEBB standards.
<br />7. When the contractor is ready to run capacity tests, he shall notify the architect. When this notice is given, the architect will
<br />assume that the contractor has made preliminary tests and is satisfied that the plant will develop specified and guaranteed
<br />capacities. It will be the contractor's responsibility to furnish any and all instruments required to obtain test data which shall
<br />include thermometers, electric meters, pressure gauges, etc.
<br />8. Work under this division of the specifications shall not be considered complete until the contractor has obtained required
<br />inspection, performance tests, made necessary adjustments and has submitted satisfactory evidence of the architect or his
<br />representative will make spot checks to determine the accuracy and completeness of final adjustments. Should spot checks
<br />indicate more than a reasonable deviation from design requirements, the contractor shall repeat tests and adjustments to the
<br /> satisfaction of the engineer.
<br />9. During one complete heating and one complete cooling season, the contractor shall make any minor adjustments that may
<br />be necessary to ensure uniform temperatures throughout the spaces.
<br />10. Test results shall be submitted to the architect/engineer.
<br />11. The Test and Balancing contractor shall adjust all sheaves or provide new sheaves and belts as required in order to properly
<br />balance all air handling equipment.
<br />B. Balancing, Start Up and Instructions
<br />1. After equipment is placed in operation, systems shall be balanced to within 10% of design flow with report submitted to
<br />owner. Balancing shall be performed by an independent AABC or NEBB certified contractor.
<br />2. Balance the air systems prior to balancing hydronic, steam, and refrigerant systems.
<br />3. Test, adjust and balance cooling systems during summer season and heating systems during winter season. Balance
<br />systems when the outside air conditions are within 5 degrees F wet bulb temperature of the maximum summer design
<br />condition and within 10 degrees F dry bulb temperature of the minimum winter design condition.
<br />4. Start up and place all systems in operation and tag all switches and controls with permanent labels.
<br />5. Train and instruct owner on proper operation and preventative maintenance of system
<br />Section 200593 (cont.)
<br />C. Piping: Testing to be done by the contractor.
<br />1. All piping shall be given the following pressure test without appreciable pressure drop: Contractor shall use recording line
<br />charts to record all pressure testing outcomes.
<br />*A minimum notice of 48 hours shall be given the architect prior to purging of any gas lines. Purging shall be to the outside of building
<br />at a safe location.
<br />2. During the final inspection of the building, the contractor may be asked to remove at least one water closet in the presence of
<br />the architect so that it can be checked for a proper installation. If the one toilet is found to be installed in a defective manner,
<br />the contractor shall remove and properly reinstall all toilets.
<br />3. Care shall be exercised in installation of air piping so as not to allow contamination.
<br />4. Minor leaks in welded joints shall be corrected by chipping out the weld and rewelding. A general sweating of a weld joint will
<br />be considered sufficient cause for rejection. Defects that may develop in screwed joints under test shall be corrected by
<br />replacing the fitting or thread or both. Caulking of defective threaded joints will not be permitted.
<br />5. During the testing period, this contractor shall maintain on the job a competent individual thoroughly familiar with all phases
<br />of plumbing for as long as may be required to thoroughly adjust all of the systems and to demonstrate to the architect that
<br />they are functioning properly.
<br />6. Adjust all flush valves and balancing valves for proper flow.
<br />7. All hydrostatic and/or air tests shall be made before piping is concealed or covered. This contractor shall be responsible for
<br />completely draining the systems after hydrostatic tests are performed. Any damage from freezing prior to acceptance of the
<br />completed installation shall be repaired at the sole expense of this contractor.
<br />8. All materials and installations under the plumbing system shall be inspected by the inspector to ensure compliance with
<br />requirements of the plumbing code.
<br />9. This contractor shall notify the plumbing inspector whenever work is ready for test and inspection.
<br />10. When work for the plumbing permit is issued and completed, this contractor shall request final inspection. Such request shall
<br />be made before the building is occupied or used but not more than 30 days after completion of the work.
<br />11. Before approving the plumbing system, the plumbing inspector may require that the system in whole or part be tested to
<br />prove sufficiency. All equipment, material, power and labor necessary for inspections and test shall be supplied by the
<br />plumbing contractor.
<br />12. All piping of plumbing system shall be tested with water or air per testing schedule.
<br />a. Drainage system water test: provide fitting at property line or termination point for purpose of test plug. Water test
<br />shall be applied to entire system or by section. When tested in sections, at least the lower 20 feet of the next section
<br />above shall be retested so that every section tested shall have at least a 20-foot head test. Hold without pressure loss
<br />for 15 minutes.
<br />b. Drainage system air test - attach air apparatus to suitable opening, close all other inlets and outlets, and then force air
<br />into the system until there is uniform pressure, sufficient to balance a column of mercury 10” in height or 5 pounds
<br />gauge pressure on the entire system. Hold without pressure loss for 15 minutes.
<br />c. No part of system shall be covered before inspection is made and approved. If covered before test, contractor shall
<br />pay for cost of uncovering so test can be made and accepted.
<br />d. Defective work or materials shall be replaced and inspection and tests repeated within three days.
<br />13. Certificates of approval of satisfactory completion and final inspection shall be obtained by the plumbing contractor. One
<br />copy of each approval shall be given to the architect.
<br />14. Damages which result from breakage or faulty installation shall be the responsibility of the plumbing contractor.
<br />15. After the system has been in service for a two-week period and again before the system is turned over to the owner, all dirt
<br /> pockets, traps, and strainers shall be cleaned, removed, and reinstalled.
<br />D. Water Using Equipment: All water using equipment, such as but not limited to, cooling coils and convertors, shall be balanced to
<br />obtain the required water pressure drop and flow. This contractor shall list the flow rate and required pressure drop and the
<br />observed pressure drop for each piece of equipment.
<br />E. Air Handling Equipment: For each piece of air handling equipment, this contractor shall list the data of the fan, motor and drive and
<br />shall obtain by measurement and furnish to the architect/engineer the fan speed, motor voltage, operating amps, for cfm and static
<br />pressure as determined from the manufacturer's fan curves. This contractor shall also determine the fan cfm by means of a
<br />velocity traverse which shall be taken a minimum of three fan diameters from fan outlet. Before running any tests, the contractor
<br />shall have installed all the components of the system and shall ensure the cleanliness of the filters.
<br />F. Diffusers, Registers, Grilles: After completion of the air distribution systems and final adjustments, the contractor shall adjust all
<br />dampers and air supply, return and exhaust outlets so that each outlet handles its proper quantity of air. Supply registers and
<br />diffusers shall be adjusted to provide for the proper throw and a uniform distribution pattern.
<br />1. For supply, return and exhaust air outlets, the velocity shall be measured with a heated wire resistance type anemometer
<br />held 1” from the face of the outlets; the air velocity shall be the average of velocity readings taken at points no more than 6”
<br />apart. The area shall be the net core area of the outlet.
<br />2. Test readings shall be taken for each register, grille and diffuser. For each of these units, obtain and furnish information on
<br />manufacturer, testing equipment used, procedure followed, location, size, average, velocity, gross and net core areas,
<br />observed cfm and specified cfm. Separate tabulations shall be furnished for each manufacturer, each system and each type
<br />of register, grille and diffuser.
<br />G. Holes in ducts and casings used for static pressure and velocity readings shall be provided with removable closures.
<br />H. During the testing period, this contractor shall maintain on the job a competent individual thoroughly familiar with all phases of air
<br /> conditioning, including refrigeration, temperature control and distribution, for as long a period as may b required to thoroughly
<br /> adjust all of the systems and to demonstrate to the architect that they are functioning properly.
<br />I. The testing and balancing engineer shall, as part of his work, perform a “Spot” re-check balancing conditions between 30 to
<br />90 days after both summer and winter balancing operations at which time a representative of the temperature control manufacturer
<br />capable of performing adjustments to his system shall accompany the balancing engineer. This operation shall include a check of
<br />space temperature, calibration of controls, pump and fan performance and the necessary adjustments thereto.
<br />Section 200700 - Insulation
<br />A. General
<br />1. Furnish all material, labor and equipment as required to install complete plumbing and HVAC insulation as indicated on
<br />mechanical drawings and in these specifications.
<br />2. Install in full accordance with manufacturer's recommendations.
<br />B. Scope: This contractor shall furnish and install all insulation necessary to the project and in accordance with the following
<br />requirements. All insulation and accessories used in an air plenum space, and all duct covering and lining, regardless of physical
<br />location, shall have a composite (insulation, jacket, and adhesive) fire and smoke hazard rating as tested under procedure ASTM
<br />E-84, NFPA 255 and UL 723, not exceeding a flame spread 25 and smoke developed 50. All other areas shall have insulating
<br />materials and accessories on pipes and vessels rated at a flame spread 25 and smoke developed 150 as tested by the same
<br />procedure. All calcium silicate shall be asbestos free.
<br />C. Workmanship:
<br />1. All insulation shall be installed over clean, dry surfaces. Insulation must be dry and in good condition. Wet or damaged
<br />insulation will not be acceptable. No insulation shall be applied prior to pressure test completion of the respective piping
<br />and/or duct system.
<br />2. All pipe insulation shall be installed with joints butted firmly together. All valves and fittings shall be insulated using mitered
<br />sections of insulation equal in density and thickness to the adjoining insulation, or with an insulation cement equal in
<br /> thickness to the adjoining insulation or premolded insulated fittings. The insulation applied to the valves and fittings shall be
<br /> covered with the same type of covering as used on the pipe insulation. No staples.
<br />3. All insulation ends shall be tapered and sealed regardless of services.
<br />4. All insulated, exposed piping 8'-0” and below to the finished floor shall include a 0.020” thick vinyl jacket. This jacket is in
<br />addition to the normal finish for the respective service.
<br />5. Rigid duct insulation shall be impaled over welded pins and secured with white insulation caps. All seams shall be firmly
<br />butted and sealed with white pressure sensitive vapor barrier tape. No staples.
<br />6. Wrap around duct insulation shall be applied with all joints butted firmly together. Insulation shall be cemented to the surface
<br />with fireproof adhesive applied in 6” wide strips on 12” centers. All joints in the insulation covering shall be sealed with
<br />adhesive. Where ducts are over 24” wide, the ductwrap shall be additionally secured to bottom of rectangular or oval ducts
<br />with mechanical fasteners on 16” centers to prevent sagging. Vapor barrier shall be legibly printed by the manufacturer to
<br />show nominal thickness and type of insulation. Aluminum corner angles shall be used to prevent over compressing
<br />insulation during installation.
<br />7. Ductliner insulation shall be applied with joints precoated with adhesive and butted firmly together. Lining shall be cemented
<br />to ductwork with a minimum of 75 percent coverage of fire resistant adhesive. Mechanical fasteners on 16” centers and
<br />adhesive shall be used when duct width exceeds 12” or when duct height exceeds 24”.
<br />8. All ductwork in the mechanical rooms is to be considered as “exposed ductwork,” i.e. supply, return, relief, and outdoor air.
<br />9. All round diffuser duct drops connected to lined ductwork shall be insulated the same as “ductwork” schedule non-lined.
<br />10. All flexible elastomeric insulation shall have all fittings, butt ends, and seams sealed with vapor barrier adhesive.
<br />11. Provide removable insulation sections to cover parts of equipment which must be opened periodically for maintenance
<br />including metal vessel covers, fasteners, flanges, chilled water pumps, frames and accessories.
<br />12. Repair all damaged sections of the existing piping and mechanical insulation damaged during this construction period. Use
<br />insulation of same thickness as existing insulation. Install new jacket lapping and seal over existing.
<br />79
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<br />SANTA ANA - SOUTH
<br />(#0972)
<br />3313 S. BRISTOL ST.
<br />SANTA ANA, CA 92704
<br />AS INDICATED
<br />07/09/2025
<br />69325-CA03
<br />ISSUED FOR
<br />PERMIT
<br /># Description Date
<br />These drawings/specifications are the property of Oculus Inc. They are
<br />furnished as contract documents only. The seal(s) and signature(s) apply
<br />only to the document to which they are affixed, and expressly disclaim
<br />any responsibility for all other plans, specifications, estimates, reports or
<br />other documents or instruments relating to or intended to be used for any
<br />part or parts of the architectural or engineering project. Additionally these
<br />drawings and seal(s) shall in no way convey or imply any type of warranty
<br />or certification relating to the performance of products and materials
<br />beyond those provided by their respective manufacturer.
<br />© 2025 Oculus Inc.
<br />03/10/2026
<br />Matthew R. Case, Engineer
<br />CA # M41121
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