Pawnee-Div-15-Mech.pdf

Pawnee Indian Health Center Division 15 Mechanical Specifications

TABLE OF CONTENTS

DIVISION 15 MECHANICAL

SECTION 15010 - GENERAL MECHANICAL PROVISIONS

SECTION 15020 - WORK INCLUDED

SECTION 15060 - PIPING SYSTEMS

SECTION 15068 - GEOTHERMAL HEAT EXCHANGE PIPING

SECTION 15070 - IDENTIFICATION

SECTION 15139 - MOTORS

SECTION 15140 - INLINE and VERTICAL PUMPS

SECTION 15141 - CENTRIFUGAL PUMPS, BASE MOUNT

SECTION 15160 - EXPANSION COMPENSATION

SECTION 15161 - VIBRATION ISOLATION

SECTION 15182 - PLUMBING PIPE INSULATION

SECTION 15252 - PIPING and EQUIP INSULATION

SECTION 15400 - PLUMBING SYSTEMS

SECTION 15491 - DENTAL AIR and VACUUM PUMPS

SECTION 15510 - FIRE PROTECTION SPRINKLER

SECTION 15515 - HYDRONIC SPECIALTIES

SECTION 15690 - VARIABLE FREQUENCY DRIVE CONTROLLERS

SECTION 15702 - HVAC WATER & AIR TEST AND BALANCE

SECTION 15772 - WATER SOURCE HEAT PUMPS DDC CONTROL

SECTION 15803 - AIR DISTRIBUTION SYSTEM

SECTION 15860 - DUCT ACCESSORIES

SECTION 15978 - DDC CONTROL GEOTHERMAL WSHP-SHORT

15010 - 1 GENERAL PROVISIONS 15010 - 1

SECTION 15010 - GENERAL PROVISIONS

1.01. GENERAL:

A. DIVISION 1 REQUIREMENTS:

This section includes all provisions of the General Requirements, Division 15. Mechanical plans, electrical plans, general plans, and all associated specifications are part of this specification.

B. DRAWINGS:

The mechanical drawings show the general arrangement of all piping, equipment, and appurtenances and are to be followed as closely as actual building construction, site conditions, and the work of other trades will permit. Conform the mechanical work to the requirements shown on all of the drawings. General and structural drawings take precedence over mechanical drawings. Notes on plans take precedence over specification requirements. Because of the small scale of the mechanical drawings, it is not possible to indicate all offsets, fittings and accessories which may be required. Investigate the structural and finish conditions affecting the work and arrange the work accordingly.

C. COMMUNICATION:

1. PROJECT MEETINGS:

Coordinating, clarification, and intent of design and construction communication at project meetings with all concerned parties is permitted and recommended. Official meeting notes will be taken by a designated person and a footnote attached to all distribution of meeting notes to provide any participant an opportunity to disagree officially (within a set period of time) with the accuracy of items discussed.

2. MAIL or HAND DELIVERY:

Request for Information (RFI) is permitted by mail or hand delivery provided:

a. Communication to be forwarded through IHS or copy to IHS. Response will be forwarded through IHS.

b. Include possible options, solutions, drawings as necessary and/or conclusions.

RFI's received without Contractor's opinion of solutions or conclusions will not be accepted at IHS's discretion.

c. Submit timely requests. IHS will respond with appropriate consideration for scheduling of construction activities as communicated by the Contractor.

Time or response deadlines included with requests or otherwise imposed will be disregarded at the discretion of the IHS.

d. Response to RFI will NOT be construed as requirement or permission for adjustment of contract sum. Adjustment of contract sum is a function of the "Change Order" process as outlined in Section 1.

e. RFI's received without consultation with appropriate subcontractor or material supplier will not be accepted at IHS's discretion.

15010 - 2 GENERAL PROVISIONS 15010 - 2

3. TELEPHONE CONVERSATION:

Request for Information is permitted with the understanding that telephone conversations are considered as preliminary and unofficial.

4. COMMUNICATION by FACSIMILE or EMAIL:

Request for Information is permitted using facsimile communication or email communication with return receipt.

5. VERBAL COMMUNICATION at JOBSITE:

Information given or opinioned by IHS at jobsite is considered preliminary with no official status. The IHS's Field Report will include all official communication from jobsite visitations.

2.01. EQUIPMENT & MATERIALS:

A. BASIC MATERIAL REQUIREMENTS:

All materials to be new and bear the manufacturer's name, trade name and UL label in every case where a standard has been established for the particular material. All equipment under each section of the specifications to be essentially the standard product of a manufacturer regularly engaged in sales and service in the United States of America and engaged in the production of the required type of equipment, and be the manufacturer's latest and approved design.

B. DELIVERY and STORAGE:

Deliver equipment and materials to the site, stored in original containers, suitably sheltered from the elements, but readily accessible for inspection until installed. Store in dry, heated spaces all items subject to moisture damage (such as controls).

C. EQUIPMENT and MATERIALS of the SAME GENERAL TYPE:

Supply like equipment and materials by the same manufacturer throughout the work to provide uniform appearance, operation, and maintenance.

D. PROTECTION:

Tightly cover and protect equipment against dirt, water and chemical or mechanical injury.

Clean and polish thoroughly, at the completion of the work, all fixtures, equipment and materials. Contractor to make good, at his expense, all damage or defects developing before acceptance of the work.

E. DIMENSIONS:

It shall be the responsibility of the contractor to insure that items to be furnished fit the space available. He shall make necessary field measurements to ascertain space requirements, including those for connections, and shall furnish and install sizes and shapes of equipment

15010 - 3 GENERAL PROVISIONS 15010 - 3

so that the final installation shall suit the true intent and meanings of the drawings and specifications.

F. MANUFACTURER'S DIRECTIONS:

Shall be followed completely in delivery, storage, protection and installation of all equipment and materials. The contractor shall promptly give notice in writing of any conflict between any requirement of the Contract Documents and the manufacturer's directions and shall obtain written instructions before proceeding with the work. Should the contractor perform any work that does not comply with the manufacturer's directions or such written instructions, he shall bear all costs arising in correcting the deficiencies.

3.01. EXECUTION:

A. MATERIAL SUBMITTALS:

1. Within thirty days after award of the contract or letter of intent, the Contractor will furnish to the IHS a minimum of six (6) brochures including manufacturer's literature and drawings describing all equipment and materials to be used on this project. All materials and equipment covered under Division 15 to be submitted at one time.

Partial submittals will not be accepted or processed. The Contractor will not qualify for payment of any kind until this is accomplished. All data and material to be thoroughly reviewed by Contractor prior to submittal. IHS's repetitive reviewing time (more than twice) incurred due to the Contractor's failure to comply with the requirements of the specifications will be invoiced to the Contractor at the IHS's standard hourly rates.

2. Stamp or permanently write the job name neatly on all sheets of the submittal and assemble in an indexed brochure. Arrange the descriptive material in the brochure in the same order as found in the specifications. Submit each brochure in a hardback 3-ring binder. The leading sheet of the descriptive material for each item is to be full size, of heavy paper, with a numbered outside tab, and an index sheet showing the location in the brochure.

3. Manufacturer's regular catalog sheets will not be acceptable under these requirements unless they indicate completely all of the specification requirements. Where drawings cover several sizes or types of construction, they shall clearly indicate the size or type of construction to be used on the project. Do NOT use "highlighter" pens to indicate equipment submitted; use arrows or heavy underlines. In cases where several sizes of the same type of equipment are required to be furnished, the submittal will include a schedule identifying each piece of equipment, complete with all capacity information needed to compare every submittal item with its respective specified item. Special features to be listed on a separate typewritten sheet.

4. Brochures will contain a written and signed certification by the Contractor that the equipment or materials are suitable for conditions shown and specified; that the equipment or materials are believed to be in conformity with the plans and specifications, except as may be specifically described; be signed by the Contractor.

Brochures received not in conformity with these requirements will be returned for required action.

5. The IHS will forward the brochures to the IHS with reasonable promptness. The IHS will return all copies less one of the final submittals with a "APPROVED, NO EXCEPTION TAKEN" dated and initialed stamp to the IHS for distribution.

15010 - 4 GENERAL PROVISIONS 15010 - 4

6. Finding "APPROVED, NO EXCEPTION TAKEN" or "APPROVED AS NOTED" will not eliminate responsibility for compliance with the plans and specifications, unless specific attention has been called, in writing, to the proposed deviations at the time of transmittal of the brochures and such deviations have been found acceptable, nor will it eliminate the responsibility for freedom from errors of any sort in the data submitted. Discovery of such deviations at or after installation will be cause for immediate replacement at no additional cost to the Owner.

7. No material or equipment so governed will be ordered or purchased until found acceptable by the IHS.

B. SUBSTITUTION:

1. Substitution will be considered when accompanied by formal written request submitted by bidder. Request received by fax will be accepted.

2. Request constitutes a representation by Bidder that:

a. Proposed product meets or exceeds the quality and performance of the specified product.

b. Warranty meets or exceeds the warranty of the specified product.

c. Coordination and installation changes to other Work to be completed with no additional cost to owner.

d. Additional costs or time extensions claims be waived.

3. Submit a separate request for each substitution on completed copy of Substitutions

Request Form attached to this Section. Attach descriptive literature on all proposed equipment to form. Submit one copy of each Request for Substitution for consideration to the IHS and submit one courtesy copy to the IHS.

4. Request will not be accepted if not in full compliance of this section.

5. If the proposed equipment is approved, the IHS will approve the equipment in the material submittal process. If bidder wishes to have a letter of approval prior to bidding, he should request so in writing accompanying the substitution request. A note of approval or disapproval will be forwarded to bidder within three (3) working days from receipt of request. No materials or equipment so governed to be ordered until found acceptable by the IHS.

3.02. COORDINATION:

A. COORDINATION WITH OTHERS:

Contractors shall examine all drawings and specifications relating to all other parts of the project. Where work is related or in contract, all contractors shall exchange approved shop drawings to coordinate the related parts.

B. ANCHOR BOLTS, SLEEVES, INSERTS and SUPPORTS:

That may be required for the mechanical and electrical work shall be furnished under the same section of the specifications as the respective items to be supported, and they shall be installed, except as otherwise specified, by the trade furnishing and installing the material in which they are to be located.

15010 - 5 GENERAL PROVISIONS 15010 - 5

C. SLOTS, CHASES, OPENINGS, and RECESSES:

Through floors, walls ceilings, and roofs as specified in new structure will be provided by the various trades in their respective materials, but the trade requiring them shall see that they are properly located and shall do any cutting and patching caused by the neglect to do

so. No cuts shall be made into any structural element, beam or column, without written approval. Openings in existing structures will be provided by the trade requiring same.

D. LOCATIONS:

Adjust pipes, ducts, switches, panels, equipment, fixtures, electrical raceways, etc. to accommodate the work to interferences anticipated and encountered. The contractor shall determine the exact route and location of each pipe, and electrical raceway prior to fabrication.

1. Right-of-way:

Lines which pitch shall have the right-of-way over those which do not pitch. For example, plumbing drains shall normally have right-of-way. Lines whose elevations cannot be changed shall have the right-of-way over lines whose elevations can be changed.

2. Make offsets, transitions and changes in direction in pipes and electrical raceways as required to maintain proper head room and pitch of sloping lines whether or not indicated on the drawings. The contractor shall furnish and install all pull boxes, etc.

as required to effect these offsets, transitions and changes in direction.

E. INSTALLATION and ARRANGEMENT:

The contractor shall install all electrical work to permit removal (without damage to other parts) of coils, circuit breakers, filters, belt guards, sheaves and drives, and all other parts requiring periodic replacement of maintenance. The contractor shall arrange pipes, raceways and equipment to permit ready access to valves, cocks, traps, starters, motors, control components and to clear the openings to swinging and overhead doors and or access panels.

F. DRAWINGS by CONTRACTOR:

When directed, the contractor shall submit drawings for approval clearly showing the contractor's work and its relation to the work of other trades before commencing shop fabrication or erection in the field.

3.03. CODES, FEES & LATERAL COSTS:

A. CODES and STANDARDS:

All materials and workmanship shall comply with all applicable codes, specifications, local ordinances, industry standards and utility company regulations.

1. Conflicts:

In cases of difference between building codes, specifications, state laws, local

15010 - 6 GENERAL PROVISIONS 15010 - 6

ordinance, industry standards and utility company regulations and the Contract Documents, the most stringent shall govern.

2. Non-compliance:

Should the contractor perform any work that does not comply with the requirements of the applicable building codes, state laws, local ordinances, industry standards, and utility company regulations, he shall bear all costs arising in correcting the deficiencies.

B. FEES, PERMITS and INSPECTIONS:

All required fees, permit and inspections shall be obtained and paid for by the contractor under the section of specifications for which they are required.

1. Certificate of Final Inspection:

Under each applicable section of the specifications, the contractor shall, upon completion of the work under that section, furnish a certificate of final inspection from the department having jurisdiction.

C. TEMPORARY UTILITY SERVICE:

All required utility services such as gas, water, storm and sanitary shall be obtained and paid for by the contractor under the section of the specifications for which they are required.

3.04. CLOSE OUT:

A. BUILDING SYSTEMS OPERATING AND SPARE PARTS MANUAL:

Submit to IHS for review and transmission to Owner, two copies of a Building Systems Operating and Spare Parts Manual. Manual to be bound in a three-ring binder and to contain the following:

1. Brief typewritten statement of start-up and shutdown sequence for each item of equipment and each system. Statement should refer to valves, switches and starters by both name and assigned number.

2. Typewritten or printed installation, operation and maintenance instructions for each item of equipment. This shall include preventative and emergency maintenance including:

a. Name and model number of each item of equipment.

b. Serial number or such other mark as may be required for parts ordering.

c. Statement as to source of repair parts and service.

d. Manufacturers spare parts recommendations.

e. Manufacturers repair parts list.

f. Manufacturers guarantees and warranties.

g. Operating characteristic curves for each item of equipment.

h. Temperature control manufacturers' control diagrams and component data sheets.

3. Manual to include all items in the approved Material Submittal Brochure.

4. Manual to include copies of all approved tests required including water and air balance, pressure tests, hydrostatic tests.

15010 - 7 GENERAL PROVISIONS 15010 - 7

B. AS BUILT DRAWINGS:

Deliver to IHS, upon completion of the work, one (1) complete set of contract drawings (white prints) marked up to show all deviations from indicated installations. Markings shall include:

1. Changes in routes of concealed piping.

2. Changes in concealed duct sizes and arrangements.

3. Other changes to concealed work which affect future maintenance and repair work.

END OF SECTION 15010

SUBSTITUTION REQUEST FORM

(Form 15010s, attached to Section 15010)

Specified Item:

(Section, Page, Paragraph, Plan Sheet, Detail, Description)

Proposed substitution:

The undersigned requests consideration of the following:

The undersigned certifies that the following paragraphs, unless modified or clarified and initialed on this form, are correct:

1. The proposed substitution does not affect plan dimensions or spaces provided for equipment.

2. The undersigned will reimburse Owner for review or redesign services associated with or caused by the substitution.

3. The proposed product will meet or exceed the quality, appearance and performance of the specified product.

4. Warranty of the proposed product will meet or exceed the warranty of the specified product.

5. All coordination and installation changes to other Work as a result of the proposed product will be completed with no additional cost to owner.

6. Maintenance and service parts will be locally available for the proposed substitution.

7. Additional costs or time extensions claims will be waived as a result of installation or delivery of proposed product.

Submitted by:

Typed name and Signature:_____________________________________________________________ Company:___________________________________________________________________________ Address:____________________________________________________________________________ City, State:__________________________________________________________________________ Date:_______________________________________________________________________________ Telephone & Fax:_____________________________________________________________________

List of Attachments:

15020 - 1 WORK INCLUDED 15020 - 1

SECTION 15020 - WORK INCLUDED

A. SCOPE:

The work contemplated and included under the contract comprises the furnishing of all labor and materials necessary for the complete installation of heating and cooling systems, ventilating systems, piping systems and plumbing systems in the proposed building, together with all necessary auxiliaries for same.

B. ALTERNATES:

Refer to architectural general conditions, Alternates section for list of alternate requirements.

Include all associated mechanical work with each alternate if no further description is in these specification or on the plans.

2.01. WORK INCLUDED:

A. HVAC SYSTEM:

Make a complete and workable heating and cooling system by furnishing and installing heating and air conditioning equipment, piping, specialities, pumps, fans, ductwork, and air terminals.

B. HVAC ACCESSORIES:

Make complete and operative installations by furnishing and installing all thermal insulation, complete systems of temperature controls, apparatus foundations and support pipe hangers and anchors together with all tools, appurtenances, and attendant accessories.

C. PLUMBING SYSTEM:

Make a complete and workable plumbing system by furnishing and installing all plumbing fixtures, waste lines, vent lines, water lines, valves, insulation, floor drains, etc.

D. EXCAVATION and BACKFILL:

Shall be performed by this contractor both inside and outside building. Run trenches and other excavations to accurate grades and remove disturbed earth. Use flooded river sand backfill within building. Use sand backfill under concrete slabs, walks and drives. Install all buried lines on a 6" layer of sand, cover with a 6" layer of sand and flood before remainder of backfill is installed. Install a 5'-0" compacted earth "plug" in all ditches which exit building.

E. DENTAL GAS PIPING and SYSTEM:

Furnish and install dental gas piping, connections and required alarm as required by NFPA 99 and as indicated on plans to make a complete and operative system.

F. FIRE SPRINKLER SYSTEM:

Furnish and install a fire sprinkler system as required by NFPA 13 to make a complete and

15020 - 2 WORK INCLUDED 15020 - 2

operative system.

G. DDC CONTROL SYSTEM:

Furnish and install total control system including all control devices plus wiring diagrams, supervision and all conduit and wire.

H. PAINTING:

All painting required will be by General Contractor.

3.01. WORK COMPLETION:

A. INSTRUCTION TO OWNER:

Instruct the owner's operating personnel in the proper operation and maintenance of all elements of the mechanical systems.

B. ACCEPTANCE:

The contractor will be given written notice of final acceptance when all work has been completed in accordance with the Contract Documents.

C. GUARANTEE:

This contractor shall guarantee in writing to keep the entire mechanical system as installed by contractor and/or sub- contractors in repair and perfect working order for one (1) year after date of final acceptance.

END OF SECTION 15020

15060 - 1 PIPING SYSTEMS 15060 - 1

SECTION 15060 - PIPING SYSTEMS

A. SCOPE: Work under this heading shall include the furnishing of all labor, materials and equipment necessary to complete all piping systems as shown on the drawings and described here.

B. SUBMITTALS: Submit product data of material and accessories in accordance with Section

15010.

C. SUBSTITUTION: Request approval in writing of proposed equipment at least ten (10) calendar days prior to bid date in accordance with Section 15010.

2.01. PRODUCTS:

A. SANITARY SEWER PIPING:

1. SUSPENDED: Standard weight cast iron soil pipe and vents with "no hub" joints using neoprene gaskets and stainless steel clamps.

2. BURIED: Standard weight cast iron soil pipe with bell and spigot joints.

3. PVC PIPING: PVC schedule 40 is allowed only for sanitary sewer vents.

4. ACID PIPING: Fuseal schedule 40 Polypropylene with electric fused joints for sanitary sewer and vent where indicated on plans and as required by local code and jurisdiction.

B. STORM and ROOF DRAIN PIPING:

1. SUSPENDED and CONCEALED: PVC schedule 40 with 1/2" armaflex insulation.

2. BURIED BELOW and OUTSIDE BUILDING : PVC (SDR-35) with bell joint and locked-in rubber gasket.

3. PAINTING: Paint all exposed piping not insulated with primer coat and final coat white color epoxy paint.

C. DOMESTIC WATER PIPING:

1. SUSPENDED: In walls, chases, and ceiling space, type "L" hard drawn copper.

2. BURIED BELOW BUILDING: Under the floor, type "K" hard drawn copper.

3. OVER 2-1/2": Galvanized threaded and coupled scheduled 40 steel.

4. BELOW GRADE WATER SERVICE: PVC C-900.

D. HVAC PIPING:

1. SUSPENDED: Chilled, heating water and water source heat pump condenser water piping

2.5" and smaller, use type "K" hard drawn copper.

2. OVER 2-1/2": Chilled, heating and water source heat pump condenser water piping 3" and larger, use schedule 40 black steel pipe.

3. BELOW GRADE: Below grade chilled water, heating water, low pressure steam, use pre-insulated / pre-fabricated piping system with steel ASTM A -53, grade B pipe and polyurethane insulation (1.9 lb/cf minimum density, 1.00 inch minimum thickness) and PVC rigid jacket (.060 inch min thickness) as manufactured by Thermacor Process, Inc. Install piping and joints per manufacturer's directions for water tight insulation.

15060 - 2 PIPING SYSTEMS 15060 - 2

4. CONDENSATE DRAIN PIPING: Schedule 40 PVC with ½" closed cell insulation.

Return air plenums; type "L" hard drawn copper with ½" plenum rated insulation.

5. PAINTING: Paint all exposed piping not insulated with primer coat and final coat white color epoxy paint.

E. GAS PIPING:

1. ABOVE 0.5 psig, use welded black steel pipe.

2. 0.5 psig, USE black steel pipe with malleable fittings.

3. BELOW GRADE: Coated and wrapped steel having magnesium anodes, "Code approved" polyethylene (orange ASTM-B- 2513 SDR-11) is an acceptable substitute. Exposed polyethylene piping is not allowed.

4. PAINTING: Paint all exposed gas piping with primer coat and final coat yellow color epoxy paint.

F. UNIONS: For 2" and smaller pipe shall be galvanized 150 pound malleable ground joint unions and for 2.5" and larger, shall be black 125 pound cast iron flanged unions.

G. VALVES:

1. ISOLATION VALVES:

a. 5" and smaller, use Hammond 8901 (threaded), 8911 (soldered), full port ball valves.

Equip ball valves with 2" extended handles of non-thermal conductive material for all insulated lines. Other type valves (other than ball) are not approved.

b. 3" and larger, use Hammond 6211 full lug cast iron bodies with aluminum bronze disk butterfly valves, with extended neck in insulated line, and handle type operators with infinite positions and memory stop, and series 400 stainless steel shafts. Provide and install a gear operator and chain wheel for all valves located 8 feet AFF and over, chain length to be 6.5 feet AFF.

2. CHECK VALVES:

a. 2.5" and smaller, use Hammond IB946 (threaded), IB945 (solder) all bronze swing check valve, 150 psi.

b. 3" and larger, use Hammond IR1124 cast iron with bronze trim swing check valve.

3. MANUAL BALANCING VALVES:

a. 2" and smaller, use ball style with memory stop and gauge connectors designed for use with the appropriate fluid. Wheatley "BV" series.

b. Above 2", use plug style with memory stop.

4. AUTOMATIC FLOW CONTROL VALVES: Factory set G.P.M. to limit rate of flow within 5% of specified amount. Each valve to have two access ports.

a. 2" and smaller, use Y-type brass body, integral ball valve and "O" ring union; Flow

Design model AC.

b. Above 2" use Ductile iron body with standard flanges; Flow Design model WS.

5. TEMPERATURE AND SYSTEM CONTROL VALVES:

15060 - 3 PIPING SYSTEMS 15060 - 3

a. All two position control valves to be line size.

b. All modulating control valves to be sized for a maximum 5 PSI pressure drop across the valve at full open and at design flow (G.P.M.).

c. Minimum differential pressure rating and minimum close-off pressure rating of all control valves to be greater than the maximum system design pressure (system pump design pressure).

6. GAS COCKS: Lubricated plug cock rated at 125 psi, designed for use with fuel gases, and approved by the governing utility.

7. RATING & APPROVALS: Rate all valves for the appropriate fluid and temperature.

Valves manufactured by Hammond, Centerline, Crane, Nibco, Wheatley and Stockham are acceptable.

•3.01. EXECUTION:

A. INSTALLATION:

1. LOCATION:

a. Run piping in straight lines at right angles to or parallel with walls, beams or columns.

Mount piping as high as practical against roof or ceiling structure.

b. Do NOT install piping above electrical panelboards, switchboards, motor control centers, dry type transformers or electronic communication control panels.

2. ELECTRICAL CONDUITS:

a. Layout and install heating and hot water piping runs to avoid paralleling electrical conduits.

b. Do not locate such piping within six inches of electrical conduits, except where crossings are unavoidable and then keep pipe covering at least one inch from the conduit crossed.

3. SUPPORT:

a. Support all suspended piping with Grinnel #260 clevis hangers, on ten foot spacing.

B-Line approved.

b. Use 3/8" diameter hanger rods for 2" and smaller pipe and l/2" diameter for 2.5" and larger.

c. Size hangers for outside diameter at the pipe covering.

d. Protect pipe covering with a 20 gage galvanized sheet metal shoe 8" long and extend for one-third the circumference of the covering.

e. Do not support piping by or fastened to other pipe or equipment.

4. CLEANING:

a. Install piping materials free of dirt, scale, rust, excess oil, grease or other compounds; as work progresses, remove foreign matter accumulating in or on the piping as a result of fabrication and erection work.

b. Flush HVAC piping using liquid alkaline compound with emulsifying agents and detergent solution to remove grease and petroleum products; secondly flush solution with city water prior to use.

c. Sterilize all domestic water lines using chlorine disinfectant.

15060 - 4 PIPING SYSTEMS 15060 - 4

d. Flush system thoroughly after sterilization.

5. PAINTING: Paint all exposed piping with primer coat and final coat white color epoxy paint if color is not selected by architect.

6. FLASHINGS: Provide all sanitary vent penetrations through the roof with flashings compatible with roof systems.

7. UNIONS:

a. For 2" and smaller pipe shall be galvanized 150 pound malleable ground joint unions and for 2.5" and larger, shall be black 125 pound cast iron flanged unions.

b. Install unions at all locations to facilitate removal of pipe installed devices.

c. Install insulating unions at all junctions of dissimilar piping material.

8. SEAL WALL PENETRATION: Seal all pipe penetrations of walls and floors with appropriately rated sealant. Submit for approval.

B. SCREWED PIPING:

1. Fabricate using sharp cutting, threading and reaming tools which maintain proper thread dimensions and produce standard thread engagement.

2. Properly ream pipe after cutting.

3. Make joints with graphite and oil lubricant, or other lubricating type compounds approved by the Engineer; sealing or adhesive type compounds, and all work assembled with such compounds will be rejected.

4. Coat exposed threads at joints with Tnemec #99 or Rust-Oleum #1069 or #1060 not later than at the end of each days work.

C. WELDED PIPING:

1. Butt-weld construction, properly beveled and aligned, to be used throughout except as noted for socket weld fittings or valves by drawing notation or material scheduling.

2. Torch cuts and bevels to be chipped and ground to a "bright" metal condition free of slag before welding.

3. Finished welds to be peened and welder identification stamped at each weld.

4. Pipe welding to comply with provisions of latest revision of applicable code, whether ASME

Boiler and Pressure Vessel Code, ASA Code for Pressure Piping B31, or state or local requirements as may supercede codes mentioned above.

D. VALVE TAGS:

1. Tag each valve.

2. Hang a frame chart with glass front showing valve number, service, and location of each valve at a place directed by the Engineer.

E. PLATES and ESCUTCHEONS:

1. Install floor and ceiling plates where piping passes through exposed walls and ceilings.

2. Provide and install chrome plated escutcheons at all exposed pipe penetrations of walls.

3. Use B and C #10 chrome plated F and C plates or equal.

4. Provide all plumbing fixtures and equipment connections with chrome plated escutcheons at

15060 - 5 PIPING SYSTEMS 15060 - 5

the wall.

F. FREEZE PROTECTION:

1. Install water piping in locations to prevent freezing; always locating piping in heated spaces.

2. If piping is to be located in attic or ceiling space of top floor, locate piping as close to ceiling as practical and cover (like a tent) piping with a minimum of R19 batt insulation to allow the heat from below maintain temperatures above freezing.

G. SOLDER JOINTS: Make all solder joints with "lead" free solder.

H. EXCAVATION and BACKFILL:

1. Run trenches and other excavations to accurate grades and remove disturbed earth.

2. Use flooded river sand backfill within building.

3. Use sand backfill under concrete slabs, walks and drives.

4. Install all buried lines on a 6" layer of sand, cover with a 6" layer of sand and flood before remainder of backfill is installed.

5. Install a 5'-0" compacted earth "plug" in all ditches which exit building.

I. SEWER LINES:

1. Sewer lines to be laid in separate trench.

2. Connections to be made using "Y" branches.

3. Provide cleanouts at foot of soil and waste stacks, at points where main sewer lines leave the building and at other points where needed to completely rod the system and as indicated on plans.

4. Cleanout holes to be the full diameter of the pipe served; do not exceed 4".

•3.02. TESTING:

A. GENERAL:

1. Testing to be at completion of roughing in before pipe is covered or enclosed by building construction.

2. Intermediate tests to be made as necessary.

3. Leaks to be repaired and tests repeated until systems proven tight.

4. Damage due to failure of test shall be responsibility of contractor.

5. Notify Engineer of intention to test at least 24 hours prior to test.

6. Call for inspection after test has been applied and stabilized unless expressly advised to contrary by Engineer.

B. WASTE, SOIL and VENT:

1. Temporarily plug up all outlets after vertical lines and soils, wastes, vents, etc., have been set.

Fill pipe with water full to the top, and allow to remain for six (6) hours.

2. Make a final test after vertical and horizontal pipes and roughing in have been made and before sewer connections are made.

3. Fill all pipes to the top of the vertical lines and allow to remain for six (6) hours.

C. WATER PIPING: Test water piping at 100 psi hydrostatic pressure for 48 hours. Make other

15060 - 6 PIPING SYSTEMS 15060 - 6

tests as herein before specified.

D. GAS PIPING:

1. Test gas piping using a Mercury manometer or a dial pressure gauge with minimum face diameter of 4 inches and scale 0 to 60 psi.

2. Test air pressure shall be 20 inches of mercury, 15 psi gauge or 175% of operating pressure (whichever is greater).

3. Hold pressure for a minimum of two hours with no loss.

E. DEFECTS: Make good all defects, and retested without delay. Such work shall be done without additional charge.

•END OF SECTION 15060

15068 - 1 GEOTHERMAL HEAT EXCHANGE PIPING 15068 - 1

SECTION 15068 - GEOTHERMAL HEAT EXCHANGE PIPING

Furnish and install a complete below surface piping system and above grade where permitted by these specifications specifically for ground loop heat pump system.

B. SUBMITTALS:

1. Submit product data according to Section 15010.

2. Submit letter of contractor qualification conformance.

C. CONTRACTOR QUALIFICATIONS:

1. The loop contractor must have a certified installer (technician) trained by IGSHPA and an IGSHPA certified manufacturer's training program.

2. Ground heat exchanger fabricator must have completed a heat fusion school in which each participant has performed a heat fusion procedure under direct supervision of a IGSHPA Association Certified Heat Fusion Technician or Dot certified heat fusion technician.

3. Certified technicians must attend a retraining school annually. A single failure of a fusion joint will void the certification, and the technician must be retested to demonstrate satisfactory performance.

4. Local and State laws and ordinances as they pertain to buried pipe systems shall be strictly followed or a variance obtained.

A. POLYETHYLENE PIPE:

1. Manufacture pipe and fittings from a PE 3408 high density polyethylene compound with a cell classification of PE355434C or PE345434C as defined by ASTM D-3350.

Manufacture in accordance with ASTM D-3035, D-2447, or F-714 as applicable. The minimum dimensional ratio is 11 (SDR11).

2. Polyethylene is the only acceptable pipe material for the below surface portion of the ground heat exchanger.

A. PIPE JOINING METHODS:

1. Heat fusion process is the only acceptable method for joining pipe system. No other method is acceptable.

2. Butt is required for all pipe joining, socket fusion will be allowed only in approved circumstances (prior approval required). Follow the pipe manufacturer's recommended guidelines.

B. FLUSHING, PURGING, PRESSURE AND FLOW TESTING:

1. Pressure test vertical loops before installation.

15068 - 2 GEOTHERMAL HEAT EXCHANGE PIPING 15068 - 2

2. Flush pressure and flow test all horizontal components of the ground heat exchanger prior to backfilling.

3. Test heat exchangers hydrostatically at 150% of pipe design rating of 300% of the system operating pressure if this value is the smaller of the two.

4. No visible leaks shall occur within a 30 minute period.

5. Visibly check all fusion joints and loop lengths to verify that no leaks have occurred due to fusion joining or shipping damage.

6. Compare flow rates to calculated values to assure that there is no blockage or kinking of any pipe.

7. Maintain a minimum velocity of 2 ft./sec in each piping section for a minimum of 15 minutes to remove all air.

C. HORIZONTAL PIPE PLACEMENT AND BACKFILLING:

1. Prevent sharp bending of pipe around trench corners by using a shovel to round corners. Follow manufacturer's recommendations.

2. During backfilling procedure, prevent any sharp-edged rocks from coming into contact with the pipe by removing the rocks before backfilling, backfilling through a coarse screen for a 6 inch cover, or by covering with 6 inches of sand. Clods resulting from use of a backhoe must be broken up so air pockets formed around the pipe will not reduce heat conduction between the earth and the pipe. In some types of soils, wetting or flooding may be required.

3. Backfill horizontal return bends by hand to properly support the pipes and prevent kinking.

4. Separate supply and return lines or bundles a minimum of 12 inches to minimize thermal interference.

5. Minimum pipe depth below finished grade to be 4'-6".

6. Install tracer tape 18 inches below finished grade directly over horizontal piping and a 24" cross at upper ends of each well.

D. VERTICAL PIPING IN DRILLED WELLS:

1. Install piping after hole for well has been bored with drilling equipment.

2. Remove all cutout material remaining in well from drilling process before installing well piping.

3. Construct vertical well piping of two continuous lengths of piping with a U-bend.

Butt fusion joints are allowed at U- bend.

4. Provide fittings for pressure testing.

5. Pressure test assembly before insertion into well.

6. After insertion into well, fill piping with water until the water runs clear. The water in piping counteracts the buoyancy effect. Counterweights are allowed if deemed necessary.

7. Temporarily seal upper ends of well piping until connection with horizontal piping.

8. Pressure grout well hole with bentonite clay grout in accordance with IGSHPA installation manual. Monitor each well and continue adding grout where settlement has occurred.

9. Remove casing if casing was used in the drilling process. A casing will insulate the well and prevent heat transfer to the earth.

10. Connect vertical piping to horizontal piping using a long radius elbow; avoid tee fittings.

11. Pressure test entire underground system before backfilling trenches.

15068 - 3 GEOTHERMAL HEAT EXCHANGE PIPING 15068 - 3

E. PIPE PLACEMENT IN BUILDING:

Run piping in straight lines at right angles to or parallel with walls, beams or columns.

Mount piping as high as practical against roof or ceiling structure. Do NOT install piping above electrical panelboards, switchboards, motor control centers, dry type transformers or electronic communication control panels.

F. TRANSITION TO OTHER PIPE MATERIAL:

1. Use a flange fitting on P.E. piping to mate up to flange of dissimilar pipe.

2. Transition fitting to be accessible. Access panel permitted if pipe is concealed in wall.

END OF SECTION 15068

15070 - 1 PIPE SYSTEM IDENTIFICATION 15070 - 1

SECTION 15070 - PIPE SYSTEM IDENTIFICATION

Include identification of all pipe systems, valves and mechanical and plumbing equipment.

Submit product data in conformance of Section 15010.

C. PAINTING:

Refer to Division 9 and Section 15060 for painting of piping, valves and equipment.

A. PIPE:

1. All service piping which is accessible for maintenance operations (except piping in finished spaces) will be identified with SET MARK semi-rigid plastic (not pressure-sensitive) identification markers or equal.

2. Include direction of flow arrows on each marker, unless otherwise specified.

3. In conformance with "Scheme for the Identification of Piping Systems" (ANSI

A13.1-1975), each marker must show (1) approved color-coded background, (2) proper color of legend in relation to background color, (3) approved legend letter size, and (4) approved marker length.

4. For pipes under 3/4" O.D. (too small for color bands and legends), securely fasten brass identification tags 1-1/2" in diameter with depressed 1/4" high black-filled letters above 1/2" black-filled numbers at specified locations.

5. SETMARK Type SNA markers to be used on diameters 3/4" thru 5". SETMARK Type STR markers to be used on diameters 6" or larger. SETMARK Pipe Markers and Brass Valve Tags as manufactured by Seton Name Plate Corporation, New Haven, Connecticut 06505.

B. VALVES:

Tags to be stamped brass 1-1/2" in diameter, with 1/2" high depressed black numbers.

C. EQUIPMENT:

Nameplates to be three-ply laminated plastic with 1/2" high letters (white with black field).

Bevel edge of nameplate.

A. PIPE:

After painting, mechanical contractor shall mark all lines as follows:

1. Adjacent to each valve and fitting (except on plumbing fixtures and equipment).

2. At each branch and riser take-off.

15070 - 2 PIPE SYSTEM IDENTIFICATION 15070 - 2

3. At each pipe passage through wall, floor and ceiling construction.

4. At each pipe passage to underground.

5. On all horizontal pipe runs - marked every 25 feet.

B. VALVES:

1. Tag every valve in boiler and/or mechanical equipment rooms and each major valve throughout the rest of the system.

2. Attach tag to valve with chain and "S" hook.

3. Identify tagged valves in the operating instructions.

C. EQUIPMENT:

All electrical equipment, furnished by the mechanical contractor shall have nameplates securely fastened to the device.

END OF SECTION 15070

15140 - 1 INLINE PUMPS 15140 - 1

SECTION 15140 - INLINE PUMPS

1.01. GENERAL

A. WORK INCLUDED:

1. Include all pumps except where integral with manufactured piece of equipment.

1. Submit product data in accordance with Section 15010.

2. Submit certified pump curves showing pump performance characteristics with pump and systems operating point plotted. Include NPSH curve when applicable.

C. SUBSTITUTION:

Request approval in writing of proposed equipment at least ten (10) calendar days prior to bid date in accordance with Section 15010.

A. GENERAL:

1. Statically and dynamically balance rotating parts.

2. Construction to permit complete servicing without breaking piping or motor connections.

3. Pumps to operate at 1750 rpm unless specified otherwise.

4. Pump connections to be flanged.

5. Heating pumps to be suitable for handling water at 230E F.

6. Refer to plans for equipment schedule.

B. VERTICAL or IN-LINE PUMP:

1. Type:

Centrifugal, single stage, close coupled in-line back pullout design, suitable for horizontal operations.

2. Casting:

Cast iron (Closed System), Bronze (Open System), rated for greater of 125 psi or 1.5 times actual discharge working pressure, suction and discharge gage port, air vent, wear rings, seal flush connection, drain plug, flanged suction and discharge.

3. Impeller:

Bronze, fully enclosed, keyed to shaft and secured with locknut.

4. Shaft:

Stainless steel or carbon steel with bronze or stainless steel sleeve through seal chamber.

5. Seals:

Carbon rotating against a stationary ceramic seat.

3.01. EXECUTION

15140 - 2 INLINE PUMPS 15140 - 2

1. Install pump so that removal of pump can be accomplished without the dismantling or removal of any piping or valves.

2. Provide line sized isolation valve and strainer on suction and lined sized soft seated check valve and isolation valve on discharge.

3. The suction piping should be straight for five pipe diameters at the point where it enters the suction connection of the pump.

4. Install p/t access port at suction and discharge piping for pressure gage.

5. Support piping adjacent to pump such that no weight is carried on pump casings.

B. TEST:

1. Verify the rotation of each pump.

2. Check the alignment of each coupling before and after start-up.

3. Ensure pumps operate at specified systems fluid temperatures without vapor binding and cavitation, are non-overloading in parallel or published maximum efficiency curve.

C. SPARE PARTS:

1. Provide for each pump one extra gasket and shaft seal.

END OF SECTION 15140

15182 - 1 PLUMBING PIPE INSULATION 15182 - 1

SECTION 15182 - PLUMBING PIPE INSULATION

A. INCLUDES:

Insulate all equipment and piping as specified here, using finished and class of materials indicated.

Submit product data of material and accessories in accordance with Section 15010.

C. SUBSTITUTION:

Request approval in writing of proposed equipment at least ten (10) calendar days prior to bid date in accordance with Section 15010.

2.01. EXECUTION:

A. PIPING:

1. Insulation Requirements:

All hot water lines, hot water return, cold water and condensate lines are to be insulated including branches to fixtures and equipment. All roof, deck and planter drain lines above the ceiling are to be insulated.

2. Fiberglass:

Insulate with ½" PPG fiberglass sectional pipe covering with manufacturer's universal jacket smoothly pasted on with vermin proof paste.

3. Closed cell insulation:

½" flexible elastomeric thermal foam insulation manufactured by Armstrong, type AP Armaflex as installed per manufacturer's recommendation is approved. Use 1.5" thickness for domestic chilled water system piping.

B. EXPOSED PIPING:

Exposed piping to be insulated with ½" thick molded glass fiber pipe covering with PVC covers. Valves and fittings to be covered with molded PVC covers with glass fiber inserts.

C. UNDER FLOOR PIPING:

Insulate all hot water and hot water return piping installed under the floor with ½" Armaflex insulation.

D. ROOF, DECK and PLANTER DRAINS:

All piping located above ceilings and exposed above floors including all vertical connections between drains & horizontal piping, and connected horizontal piping, including drain sump to be insulated with ½" Armaflex insulation.

E. MANUFACTURERS:

Gustin-Bacon, Owens Corning and Specialty Products and Insulation Co. are acceptable

15182 - 2 PLUMBING PIPE INSULATION 15182 - 2

manufacturers.

END OF SECTION 15182

15252 - 1 PIPING - EQUIP INSULATION GEOTHERMAN. 15252 - 1

SECTION 15252 - PIPING - EQUIP INSULATION GEOTHERMAN.

1. Piping insulation.

2. Equipment insulation.

3. Piping insulation jackets.

1. Submit product data and samples in accordance with Section 15010.

2. Submit product data which indicate complete material data, a list of materials proposed for this project and indicate thickness of material for individual services.

C. JOB CONDITIONS:

1. Deliver material to job site in original non-broken factory packing, labeled with manufacturer's density and thickness.

2. Perform work at ambient and equipment temperatures as recommended by the adhesive manufacture.

D. ALTERNATIVES:

1. Alternative insulations are subject to Engineer approval. Alternatives to provide same thermal resistance within 10%, at normal conditions as materials specified.

A. ACCEPTABLE MANUFACTURERS:

1. Halstead

2. Therma-cel

3. Armaflex

B. GENERAL:

1. Adhesives and Insulation Materials:

Composite fire and smoke hazard ratings maximum 25 for Flame Spread and 50 for Smoke Developed. Adhesive to be waterproof.

2. Insulation value:

"K" value at 75 degrees F. maximum 0.24 btu/in./ sq.ft./ degrees F.hr.

C. MATERIALS AND COMPONENTS:

1. Suspended Piping - closed loop ground source heat pump condenser water:

Closed cell insulation, with factory applied vapor barrier jacket, molded to conform to piping. 3/4" on all sizes 2.5" diameter and less, 1" on all sizes over 2.5" diameter.

2. Interior Cooling Coil Condensate Drain Piping:

15252 - 2 PIPING - EQUIP INSULATION GEOTHERMAN. 15252 - 2

1/2" closed cell.

3. Expansion Tank & Air Separator:

1" closed cell sheet insulation.

4. Circulating Water Pumps:

1" closed cell sheet insulation.

3.01 EXECUTION:

A. PREPARATION:

1. Do not install covering before piping and equipment has been tested and approved.

2. Ensure surface is clean and dry prior to installation.

3. Ensure insulation is dry before and during application.

4. Finish with systems at operating conditions.

B. EXTERIOR EXPOSED PIPING:

Supply and install an aluminum or stainless steel outside protective covering on all insulated piping and valves installed outside the building.

C. INTERIOR EXPOSED PIPING IN MECHANICAL ROOMS:

Supply and install a PVC outside protective jacket covering on all insulated piping and valves installed exposed in mechanical or boiler rooms (not required at Attic Level).

D. INSTALLATION:

1. Ensure insulation is continuous through inside walls. Pack around pipes with fire proof self-supporting insulation materials, fully sealed.

2. Insulate fittings and valves. Do not insulate unions, flanges, strainers, flexible connections and expansion joints.

3. Finish insulation neatly at hangers, supports and other protrusions.

4. Locate insulation or cover seams in least visible locations.

5. Provide PVC jackets on exposed insulation of condenser water piping throughout, including equipment room. Insulation located in pipe shafts and suspended ceiling spaces is not considered exposed.

6. Cover fittings and valves with equivalent thickness of insulation material.

7. Circulating Water Pumps:

Insulate with 1" thick closed cell sheet insulation. Cut and form to fit actual pump casing. Use joint adhesive recommended by insulation manufacturer. Field fabricate so that insulation can be removed for pump maintenance.

8. Repair separation of joints or cracking of insulation due to thermal movement or poor workmanship.

END OF SECTION 15252

15252 - 3 PIPING - EQUIP INSULATION GEOTHERMAN. 15252 - 3

15400 - 1 PLUMBING SYSTEMS 15400 - 1

SECTION 15400 - PLUMBING SYSTEMS

The work contemplated and included under this heading comprises the furnishing of all labor and materials necessary for the complete installation of plumbing systems in the proposed buildings, together with all necessary auxiliaries.

B. PLUMBING FIXTURES:

Furnish and install plumbing fixtures shown on drawings, including sinks, service sinks, lavatories, water closets, electric water cooler, urinals, etc., with all brass connections therewith, such as traps, supply tubing, stop and basin cocks, etc. Deliver fixtures to building properly crated and in perfect condition.

C. BRASS:

Brass must be of…