6-Westfield MECH SPEC.pdf

DIVISION 23 HEATING, VENTILATION AND AIR CONDITIONING

MECHANICAL

Westfield Elementary School Controls

No. Section No. of Pages

230000 HEATING, VENTILATION AND AIR CONDITIONING

230501 COMMON HVAC REQUIREMENTS

230933 AUTOMATIC TEMPERATURE CONTROLS

WESTFIELD ELEMENTARY SCHOOL CONTROLS 23 0501 - 1

COMMON HVAC REQUIREMENTS

SECTION 23 0501

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to work of this section.

B. Related Sections: Refer to “Electrical Requirements for Heating-Ventilation and Air-Conditioning

(HVAC) Equipment” Section 23 0000 for basic electrical requirements for all mechanical equipment. Special and specific electrical requirements are specified within each respective equipment specification section. See Sections 22 0000 Plumbing and Section 26 0000 Electrical.

1.2 SCOPE OF WORK - GENERAL

A. This section specifies the basic requirements for HVAC installations and includes requirements common to more than one section of. It expands and supplements the requirements specified in sections of Division 01.

B. The work covered by the HVAC Sections of the Specifications shall include the furnishing of all materials, labor, transportation, tools, permits, fees, inspections, utilities, and incidentals necessary for the complete installation of all mechanical work required in the Contract Drawings.

C. It is the intent of the Contract Documents to provide an installation complete in every respect. In the event that additional details or special construction is required for work indicated or specified under this section of work or work specified in other sections, it shall be the responsibility of the Contractor to provide all material and equipment which is usually furnished with such systems in order to complete the installation, whether mentioned or not.

D. The Contractor shall review all Contract Drawings and Specifications and include in his bid any work specifically as being performed in the HVAC. The Contractor shall be responsible for all work performed by his subcontractors.

1.3 DEFINITIONS

A. "Provide" shall mean "furnish and install complete and ready for intended use."

B. "Indicated" shall mean "indicated on drawings".

C. "Concealed" shall mean "hidden from sight as in trenches, chases, furred spaces or hung ceilings.

D. "Exposed" shall mean "not concealed", as defined above.

E. "Noted" shall mean "noted on drawings or in specifications".

F. "Contractor" also referred to as "this Contractor" or "the Contractor", shall mean "HVAC".

WESTFIELD ELEMENTARY SCHOOL CONTROLS 23 0501 - 2

1.4 CODES AND STANDARDS

A. All mechanical work shall be in strict accordance with the most current edition of the International Building Code (IBC), International Mechanical Code (IMC), Uniform Plumbing Code (UPC), National Fire Protection Association (NFPA), International Fire Code (IFC), National Electrical Code (NEC), Energy Code IECC and ASHRAE-90.1, and all applicable state and local codes, laws and ordinances.

1.5 PERMITS AND FEES

A. The Contractor shall obtain and pay for all required permits and fees necessary to fully complete all work included in the Contract Drawings and Specifications.

1.6 CONSTRUCTION OBSERVATIONS:

A. During the course of construction of this project, the engineer shall visit the project site periodically on an as-needed basis. The construction observation intervals may vary depending on the progress and/or stage of construction and whether piping and/or ductwork, etc., is being placed below grade and/or concealed, surface mounted items, setting of equipment, equipment connections, etc. However, written field questions are encouraged and welcomed throughout the course of construction and shall be answered promptly in writing, to keep the project construction on schedule. The project foreman should have the building plans, construction schedules, etc., affixed in mind, so the mechanical systems being assembled, the setting of equipment, of parts and pieces, related to the project are anticipated, to prevent delays or emergencies.

(1) The engineer shall make one (1) final inspection. The contractor shall notify the engineer that the installation is complete, i.e., the systems are operating and have been tested and balanced, and everything is complete and operational, all equipment connections have been made and the owner’s representatives have been trained. At this time the engineer, the contractor, and the owner’s representative shall schedule a time to walk the project for evaluation, and record in writing the items found to be incomplete. The contractor shall make the corrections within one (1) week after this inspection. If at the conclusion of the observation tour the owner and engineer determine that additional visits are required to complete this project.

B. On extra visits, the contractor shall report to the engineer that all systems are complete, and the project is ready for the owner’s acceptance.

1.7 INTENT AND INTERPRETATION

A. The Drawings and Specifications are intended to supplement each other, and any details contained in one and not the other shall be included as if contained in both. Items not specifically mentioned in the specifications or noted on the drawings, but which are obviously necessary to make a complete working installation shall be included.

B. The drawings are partly diagrammatic and do not necessarily show the exact location of all new piping and existing utilities, unless specifically dimensioned.

C. Riser and other diagrams are schematic only and do not necessarily show the physical arrangement of the equipment. They shall not be used for obtaining quantities or lineal runs of piping.

D. All grilles, fixtures or other pieces of equipment shall be centered on windows, wall spaces, or other items, unless specifically dimensioned otherwise.

E. The location of the ductwork shall be checked to determine that it clears all openings and structural members; that it may be properly concealed; and that it clears cabinets, lights and equipment having fixed locations.

WESTFIELD ELEMENTARY SCHOOL CONTROLS 23 0501 - 3

F. HVAC drawings shall serve as the working drawings for this portion of the work, but the Contractor shall refer to the Architectural, Structural, Plumbing and Electrical drawings for additional detail affecting the installation of his work. Architectural drawings shall take precedence over the HVAC drawings if any dimensional discrepancies exist.

G. The approximate location of each item is indicated on the drawings. These drawings are not intended to give complete and exact details regarding location. Exact locations are to be determined by actual measurements at the building and will in all cases be subject to the approval of the Architect and he reserves the right to make any reasonable changes in the locations indicated without additional cost.

H. The contractor shall not make a change in a system, system layout, and/or equipment, except he receives written approval or drawing over the signature of the engineer.

1.8 SUBMITTAL OF EQUIPMENT FOR APPROVAL

A. Refer to the Conditions of the Contract (General and Supplementary) and Division 01 General Requirements for submittal definitions, requirements, and procedures.

B1. Engineer Approved Shop Drawings of Data on Product and/or Equipment Being Installed in this

Project: After the contract is awarded the project and prior to the production of the specified equipment, the manufacturer shall have in hand an engineer approved shop drawing on that equipment being installed on this project. The manufacturer shall produce the product to comply with approved data. A brief description of submission to the engineer for evaluation is given below. Refer to identified sections for detailed submittal requirements.

B2. The contractor shall submit one set of shop drawings in a single binder (as stated in

Section 1.11). From the submitted data the Design Engineer will review, make comments on, or disapprove the submittals. The submittal will then be returned to the contractor via e-mail. Upon receipt of the e-mail, the contractor shall produce and assemble the required sets of shop drawings, operation, and maintenance material, forming a manual that can be used by the owner in operating and maintaining the equipment.

C. Confirm equipment approved for the project.

1. Confirm that the equipment is approved for installation. It must be defined as to name, catalog number or both in the bid documents, which includes the published addendums. If not approved, do not submit.

2. Each unit shall state the name of the equipment manufacturer (name, address, phone, email, etc.) catalog number, size, physical dimensions and weight, energy characteristics (electrical and/or fuel), operating characteristics, materials from which constructed, any special conditions that may apply to the construction of the unit, etc.

3. The equipment must explain and define in detail the components that make-up the unit, so the owner and engineer can determine, define the replaceable parts during the life of the unit.

4. Complete operating instruction, normal maintenance recommendations, start-up procedures, etc.

5. In general, the contractor shall acquaint himself with the equipment to confirm that it can be installed as shown on the plans and from his experience perform the indicated function in the system where installed.

6. If the contractor foresees any problems with equipment size, weight, delivery, etc., it shall be noted in writing, attached to the shop drawings.

1.9 RECORD DOCUMENTS

A. Contractor shall record differences between mechanical work as installed and as shown in Contract Documents on a set of prints of mechanical drawings to be furnished by Architect. Return these prints to Architect at completion of project. Notations made on drawings shall be neat and legible.

Comply with Division 1 General Requirements.

WESTFIELD ELEMENTARY SCHOOL CONTROLS 23 0501 - 4

1.10 OPERATION AND MAINTENANCE MANUALS

A. Contractor shall prepare and submit Operation and Maintenance Manuals for mechanical systems provided under this Contract. Comply with Division 1 requirements for procedures and requirements for preparation and submittal of manuals.

B. Manual binder shall have permanent lettering of a contrasting color. Information to be included on the binder is as follows:

1. The front cover shall be lettered as follows:

HVAC

OPERATION AND MAINTENANCE

MANUAL

(PROJECT NAME)

(CITY AND STATE)

(YEAR)

OWNER: (NAME)

ARCHITECT: (NAME)

HVAC ENGINEER: Nielson Engineering Inc.

GENERAL CONTRACTOR: (NAME)

HVAC CONTRACTOR: (NAME)

The spine shall be lettered as follows:

HVAC O & M MANUAL (Year)

(Project Name)

C. Provide a master index at beginning of Manual showing items included. Use plastic tab indexes for sections of Manual.

D. Cover section shall consist of name, address, and phone number of Project Architect, General Contractor, Plumbing and HVAC Engineer, HVAC Contractor, and all HVAC Sub-Contractors.

E. Provide a separate section for each section of the specifications. Provide index for each section listing equipment included. Include all items specified in Section 23. Provide a list of each type of equipment supplied with the local supplier’s name, address, and phone number.

F. Include descriptive literature (manufacturer's catalog data) of each manufactured item.

Literature shall show capacities and size of equipment used and be marked indicating each specific item with applicable data underlined. Data sheets shall be original. Copies are not acceptable.

G. When complete (before constructions begins) one (1) copy of the O & M Manual with approved submittals shall be placed in the Mechanical contractor’s construction shack. At the close of the project, submit three (3) copies of manual shall be delivered to the owner at start-up and instruction for Owners use. Follow Division 01 requirements for additional manuals. Information to be included in manual:

1. Description of function, normal operating characteristics and limitations, performance curves, engineering data and tests, and complete nomenclature and commercial numbers of all replaceable parts.

2. Manufacturer's printed operating procedures to include start-up, break-in, routine, and normal operating instructions; regulation, control, stopping shutdown, and emergency instructions; and summer and winter operating instructions.

3. Maintenance procedures for routine preventative maintenance and troubleshooting;

disassembly, repair, and reassembly; aligning and adjusting instructions.

4. Servicing instructions and lubrication charts and schedules.

WESTFIELD ELEMENTARY SCHOOL CONTROLS 23 0501 - 5

5. Schematic control diagrams (as built status) for each automatic control system. Mark correct operating setting for each control instrument on these diagrams. A second complete set of control diagrams encased in clear plastic laminate shall be furnished.

6. Valve schedule indicating the valve symbol (tag number), valve location by room number and description, valve purpose and system served, and valve size. Provide one corresponding set of full-size mechanical prints (as-builts status) showing these valve locations for cross-reference. A second complete set of valve schedules (8½” x 11”) encased in clear plastic laminate and fitted in an aluminum holding frame shall be furnished to the Owner.

7. Testing, Adjusting, and Balancing Report.

8. Test records and certifications.

9. Instruction period checklist.

10. Warranty information.

1.11 OPERATION AND MAINTENANCE INSTRUCTION AND TRAINING

A. The Contractor shall instruct the Owner's Representative(s) in the Operation and Maintenance procedures described in the Operation and Maintenance Manual. Comply with Division 1 requirements.

B. Individuals present shall include Contractors, Subcontractors, and equipment factory representatives. These individuals shall assist in instruction and start-up.

C. Minimum instruction time shall be eight (8) hours unless otherwise specifically noted.

D. All mechanical systems shall be properly functioning prior to instruction period.

E. Contractor shall prepare a checklist of all equipment and systems requiring instruction and maintenance for verification by the Owner's Representative of satisfactory start-up and instruction. A copy of this checklist shall be included in the Operation and Maintenance Manual.

1.12 GUARANTEE

A. Contractor shall guarantee the satisfactory operation of all material and equipment installed under Division 23 and shall repair or replace to the satisfaction of the Owner or Architect, any defective materials, equipment, or workmanship which may show itself within one year from the date of acceptance.

1.13 CLEANING

A. The Contractor shall, at all times, keep the premises free from accumulations of waste material or rubbish.

B. At completion of the job, the Contractor shall remove all tools, scaffolding, and surplus materials.

PART 2 - PRODUCTS

2.1 GENERAL MATERIALS AND EQUIPMENT REQUIREMENTS

A. All materials, in general, shall conform to the requirements of all agencies or publications specified and described in Division 01 of the Contract Specifications.

B. Materials and equipment to be provided shall be the standard catalog products of manufacturers regularly engaged in the manufacture of products conforming to these specifications and shall essentially duplicate materials and equipment that have been in satisfactory use at least two years.

WESTFIELD ELEMENTARY SCHOOL CONTROLS 23 0501 - 6

C. All specified materials and equipment shall be American manufactured and made.

2.2 LISTED EQUIPMENT

A. The current Electrical Code requires that all materials, devices, appliances, and equipment, shall be of a type that conforms to applicable standards or be indicated as acceptable by the established standards of the Underwriter's Laboratories, Inc. or other electrical product testing laboratories which are accredited by the department.

B. This statement is being interpreted by the State Electrical Inspector as follows: It is understood that many specialty items such as cast-iron boilers, certain items of air handling equipment and other building components are not available with a UL label covering the entire piece of equipment. The State will impose no requirement that an item of equipment be UL labeled unless it is available as a UL labeled items from at least two manufacturers. Electrical components of unlabeled equipment, such as motors, shall be labeled if they are available from at least two manufacturers.

C. If any building component is available with a UL label from at least two manufacturers, an identical or similar unlabeled component shall not be acceptable for installation in the State of Utah. Should any such component be installed in the State of Utah, it shall either be inspected and labeled by a UL representative or other authority approved by the State or it shall be replaced with a UL labeled component, before the building will be accepted by the State Electrical Inspector.

D. Consequently, it shall be the sole responsibility of the Contractor (through project suppliers and equipment manufacturers) to purchase and install only equipment bearing the UL label whenever that equipment so labeled is available. The Contractor, (should any equipment be installed without the proper UL label) shall bear the entire cost of correction to the satisfaction of the Utah State Electrical Inspector.

2.3 SUBSTITUTIONS AND PRODUCT OPTIONS

A. Substitute equipment is encouraged if it is truly an equal to the specified items.

1. The items and/or equipment specified in the contract documents are standard manufacturers items found in suppliers’ catalogs, except it be indicated as special. The designer has taken time and effort to analyze, evaluate and prove to himself that the specified units will perform the function needed, wherein it is placed. This means the responsibility for the function of the specified equipment rests with the designer, who knows and understands what is to be accomplished.

2. If a supplier and/or the contractor desire to substitute equipment in place of a specified item, he may do so, but he takes upon himself or herself the full responsibility that the substituted equipment will equal all of the performing characteristics, functions, etc., and/or exceed the performance of the specified item. The substitute equipment shall be of such a physical size and weight that it will mount in the designated location without alterations to the building and the structure will carry the load. If for any reason the substituted equipment requires alterations or modification, in any form to the building and/or the structure, the costs shall be paid by the contractor and/or those requesting the substitutions.

3. Those interested in requesting a substitution shall submit a substitution request. The Substitution request will be considered if it is at the office of the Engineer eight (8) working days prior to the day of bidding. The request shall include the following

a. A statement certifying that the equipment proposed is equal to that specified;

that it has the same mechanical operating characteristics, compatible dimensions, weight, electrical characteristics and meets the function and intent of the equipment named in the contract documents.

b. The specification and catalog numbers of the substituted equipment.

c. A pictorial and specification brochure.

WESTFIELD ELEMENTARY SCHOOL CONTROLS 23 0501 - 7

4. Because of the short bidding period, (from issuance of drawing to bid date), between the substitution request and the bid date, the designer does not have adequate time to make a full evaluation of substitute equipment. Therefore, those requesting the substitution must accept full responsibility for the items being submitted for substitution (operating characteristics, physical size, weight, output, not increase the load, etc.). If at any time during the course of construction, even up into the final completion, if the designer finds the equipment does not meet the design criteria, comply with the performance, etc., those requesting the substitution and the contractor have the responsibility to remove the substituted equipment and install the specified item at their expense.

There shall be no cost assessed to the owner and/or the designer and the replacement will not delay the completion of the project.

B. Discrepancies between equipment specified and the intended function of equipment shall be brought to the attention of the Architect/Engineer in writing prior to bidding. Failure to report any conflict, including catalog numbers, discontinued products, etc., does not relieve the Contractor from meeting the intent of the contract documents, nor shall it change the contract cost. If the Contractor is unable to interpret any part of the plans and/or specifications, or should he find discrepancies therein, he shall bring this to the attention of the Architect/Engineer, who will issue interpretation and/or additional instructions to Bidders before the project is bid.

C. Any conflict arising from the use of substituted equipment shall be the responsibility of the contractor, who shall bear all costs required to make the equipment comply with the intent of the contract documents.

D. Samples may be required for non-standard or substituted items before installation during construction. Provide all samples as required.

E. No materials or apparatus may be substituted after the bid opening except where the equipment specified has been discontinued. This substitution may be made by a change order.

F. Approved equipment shall be so noted, in writing in a formally issued Project Addendum.

PART 3 - EXECUTION

3.1 COORDINATION

A. Each Contractor shall at all times cooperate with other trades on the job to avoid friction and delay to the progress of work. All points in dispute shall be referred to the Architect.

3.2 SUPERVISION

A. This Contractor shall have in charge of the work at all times a thoroughly competent superintendent. Comply with Division 01 requirements.

3.3 WORKMANSHIP

A. The work under the mechanical contract shall be performed by workers skilled in the particular trade and include all work necessary to properly complete the installation in a professional manner so as to present a neat and finished appearance.

3.4 EXAMINATION OF SITE

A. The Contractor shall visit the site of the proposed work and become familiar with the conditions affecting the work. Contractor shall verify all measurements at the building before beginning work.

WESTFIELD ELEMENTARY SCHOOL CONTROLS 23 0501 - 8

3.5 EXISTING HVAC SYSTEMS

A. Confirm the locations of existing HVAC Equipment in the area of the facility being remodeled and relate how it is adapted into the new scheme of things. The Contractor shall assume that connection points are as indicated on the plans. Where connection points are not within this radius, the Contractor shall contact the Architect for a decision before proceeding or may proceed at his own expense.

3.6 LAYING OUT WORK

A. Locations of equipment and devices, as shown on the drawings, are approximate unless dimensioned. Exact locations of such items shall be determined by the Architect's representative and/or secured from special details and drawings. Verify the physical dimensions of each item of mechanical equipment to fit the available space and promptly notify the Architect/Engineer prior to roughing-in if conflicts appear. Coordination of equipment to the available space and to the access routes through the construction shall be the Contractor's responsibility.

B. The contractor shall hand deliver to the general contractor a written statement and/or a manufacturer’s brochure on the equipment being installed at each location. The information shall give the dimensions and weight (loads) of each unit being installed. The general contractor shall forward a copy of this information to the structural engineer and obtain from him confirmation that the building structure will accommodate the loads. If there be any problem the questioning party shall notify the mechanical engineer by phone and in writing.

3.7 CONTRACTOR COORDINATION

A. In the course of installing the systems defined in the contract documents, the contractor shall closely follow the plans, details and specifications (contract documents). The system design has been a careful and laborious undertaking, with the intent purpose of producing a system and/or system that will serve the owner well with a minimum of maintenance. Thence, the contractor shall adhere as closely as possible to the plans, details, and specifications for each system.

Questions and suggestions are encouraged as the project is being assembled. If for any reason, the contractor feels to deviate from the defined information, and finds a way, to improve the system, to make the system more easily assembled, make it operate more efficiently, etc., the contractor shall suggest the change to the engineer. Systems are designed to perform a specific function; the most minute change in assembly may change the function. If the engineer agrees with the change, he will authorize the contractor to proceed. Contractor cooperation and coordination is appreciated. If the contractor proceeds on construction without the designer’s authorization, it shall be reworked, in accordance to plans and specifications, which work shall be at the contractor’s expense.

3.8 CUTTING AND PATCHING

A. All cutting and patching of new or existing construction required for installation of mechanical systems and equipment specified in Division 23 shall be the responsibility of the Mechanical Contractor unless otherwise noted. Comply with Division 1 for general requirements for cutting and patching.

B. All cutting shall be performed with masonry saws, core drills or similar equipment to provide neat and uniform openings.

C. All patching shall match adjacent surfaces in materials and finish. Do not endanger or damage installed work through procedures and processes of cutting and patching.

D. Arrange for repairs required to restore other work, because of damage caused as a result of

HVAC installations.

E. No additional compensation will be authorized for cutting and patching work that is necessitated by ill-timed, defective, or non-conforming installations.

WESTFIELD ELEMENTARY SCHOOL CONTROLS 23 0501 - 9

F. Perform cutting, fitting, and patching of HVAC equipment and materials required to:

1. Uncover work to provide for installation of ill-timed work.

2. Remove and replace defective work.

3. Remove and replace work not conforming to requirements of the Contract Documents.

4. Remove samples of installed work as specified for testing.

5. Install equipment and materials in existing structures.

G. Upon written instructions from the Architect/Engineer, uncover and restore work to provide for

Architect/Engineer observation of concealed work.

H. Cut, remove and legally dispose of selected HVAC equipment, components, and materials as indicated, including, but not limited to removal of HVAC piping, heating units, ductwork, plumbing, etc., and other HVAC items made obsolete by the new work.

I. Protect the structure, furnishings, finishes, and adjacent materials not indicated or scheduled to be removed.

J. Provide and maintain temporary partitions or dust barriers adequate to prevent the spread of dust and dirt to adjacent areas.

K. and property caused by said damaged utilities whether shown on the drawings or not.

3.9 PROTECTION OF MATERIALS AND EQUIPMENT

A. Contractor shall be held responsible for any and all materials and equipment to be installed under this contract and will be required to make good at his own cost any injury or damage which materials or equipment may sustain from any source or cause whatsoever before final acceptance. Comply with Division 01 requirements.

3.10 DELIVERY, STORAGE, AND HANDLING

A. Deliver products to project properly identified with names, model numbers, types, grades, compliance labels, and similar information needed for distinct identifications; adequately packaged and protected to prevent damage during shipment, storage, and handling.

B. Store equipment and materials at the site unless off-site storage is authorized in writing.

Protect stored equipment and materials from damage.

C. Coordinate deliveries of HVAC materials and equipment to minimize construction site congestion. Limit each shipment of materials and equipment to the items and quantities needed for the smooth and efficient flow of installations.

3.11 ACCESSIBILITY

A. Install equipment and materials to provide required access for servicing and maintenance.

Coordinate the final location of concealed equipment and devices requiring access with final location of required access panels and doors. Allow ample space for removal of all parts that require replacement or servicing.

B. Access doors or hatches required for servicing of mechanical equipment shall be furnished and installed as specified in the other Divisions and Sections of the Specifications.

3.12 PAINTING

A. Contractor shall touch-up scratched, or damaged factory finishes of HVAC equipment. Comply with Division 01 requirements.

B. Unless otherwise noted, all other painting of HVAC related items shall be according to Section

09 9123 "PAINTING".

WESTFIELD ELEMENTARY SCHOOL CONTROLS 23 0501 - 10

3.13 FINAL CLEANING

A. Refer to Division 01 for general requirements for final cleaning.

B. At time of final cleanup, all fixtures and equipment shall be thoroughly cleaned and left in condition for use.

3.14 FIRE PENETRATION SEALS

A. All penetrations through fire rated floors and walls shall be sealed to prevent the spread of smoke, fire, toxic gas, or water through the penetration either before, during or after a fire. The fire rating of the penetration seal shall be at least that of the floor to wall into which it is installed so that the original fire rating of the floor or wall is maintained.

B. The sealant shall remain soft and pliable to allow for the removal and/or addition of piping without the necessity of drilling holes. It shall adhere to itself to allow any and all repairs to be made with the same material. It shall permit the vibration, expansion and/or contraction of piping and ducts going through the penetration without the seal cracking or crumbling.

C. When damming materials are to be left in place after the seal is complete, all such materials shall be non-flammable.

D. When sealant is injected into a penetration, the foam shall expand to surround all items within the penetration and maintain pressure against the walls of the penetration. The foam shall cure within five minutes and be fire resistant at that time. No heat shall be required to further expand the foam to block the passage of fire and smoke or water.

E. All wall or floor penetration openings shall be as small as possible.

F. The foam sealant shall meet the entire fire test and hose stream test requirements of ASTM

E119-73 and shall be UL classified as a Wall Opening Protective Device. The sealant shall be CHASE-FOAM, CTC PR-855 Fire Resistant Foam Sealant from Chase Technology Corporation, Huntington Station, New York 11746 or 3M Brand Fire Barrier caulk CP25, putty 303, wrap/strip FS 195 or sheet CS 195 from 3M Products Divisions, 224-4N 3M Center, St.

Paul, MN 55144-1000.

END OF SECTION 23 0501

WESTFIELD ELEMENTARY 23 0933 - 1

AUTOMATIC TEMPERATURE CONTROLS

SECTION 23 0933

PART 1 – GENERAL

1.1 GENERAL CONDITIONS:

A. The General Conditions, Supplementary General Conditions, alternates and addenda, applicable drawings and the technical specifications, shall all apply to all work under this division.

B. Furnish a totally native BACnet-based system, using Microsoft Windows 71 or XP

Professional as the operating system and shall be based on a distributed control system in accordance with this specification. The operator's workstation, all building controllers, application controllers, and all input/output devices shall communicate using the protocols and network standards as defined by ANSI/ASHRAE Standard 135-2016, BACnet. In other words, all workstations and controllers, including unitary controllers, shall be native BACnet devices. No gateways shall be used for communication to controllers installed under this section. Gateways may be used for communication to existing systems or to systems installed under other sections.

1.2 APPROVED MANUFACTURES/INSTALLERS

A. MANUFACTURES - INSTALLERS

1. ATC Contractors 1-801-486-9364

2. CCI Mechanical 1-801-973-9000

B. A detailed points list shall be provided by Division 23 control contractor include the points list with their bid so the school district and engineer can review the system and components proposed.

1.3 SCOPE

A. Provide all necessary BACnet-compliant hardware and software to meet the system's functional specifications. Provide Protocol Implementation Conformance Statement (PICS) for Windows-based control software and every controller in system, including unitary controllers.

B. Prepare individual hardware layouts, interconnection drawings, and software configuration from project design data.

C. Implement the detailed design for all analog and binary objects, system databases, graphic displays, logs, and management reports based on control descriptions, logic drawings, configuration data, and bid documents.

D. Design, provide, and install all equipment cabinets, panels, data communication network cables needed, and all associated hardware.

E. Provide and install all interconnecting cables between supplied cabinets, application controllers, and input/output devices.

F. Provide and install all interconnecting cables between all operator's terminals and peripheral devices (such as printers, etc.) supplied under this section.

G. Provide complete manufacturer’s specifications for all items that are supplied. Include vendor name of every item supplied.

WESTFIELD ELEMENTARY 23 0933 - 2

H. Provide supervisory specialists and technicians at the job site to assist in all phases of system installation, startup, and commissioning.

I. Provide a comprehensive operator and technician training program as described herein.

J. Provide as-built documentation, operator’s terminal software, diagrams, and all other associated project operational documentation (such as technical manuals) on approved media, the sum total of which accurately represents the final system.

K. Provide new sensors, clampers, valves, and install only new electronic actuators. No used components shall be used as any part or piece of installed system.

L. Provide the following;

1. Master DDC Control Panel

2. Local DDC Control Panels

3. ATC Interface Panels

4. Local Area Network Wiring and Setup

5. Hot Water Heating System Control

6. Rooftop Unit (Economizer, Demand Control Ventilation and CO²)

7. Kitchen Makeup Unit Control (MUA-1 & MUA-2)

8. Kitchen E.F. Control (EF-8 & EF-9)

9. Computer Room RTU sensor

10. Room Temperature Control

11. Building Fire Alarm Interlocks

12. Kitchen Gas Valve Control

13. Exhaust Fan Control

14. Water Flow Alarm

15. Domestic Hot Water System Control

16. Connectivity and Interface with all VD’s

17. Cooler and Freezer Alarm Sensors

1.4 SYSTEM DESCRIPTION

A. A system of DDC automatic temperature controls shall be furnished and installed as a part of this contract to give the owner a completely operable system.

B. A distributed logic control system complete with all software and hardware functions shall be provided and installed. System shall be completely based on ANSI/ASHRAE Standard 135- 2001, BACnet. This system is to control all mechanical equipment, including all unitary equipment such as unit ventilator, rooftop units, A units, etc. boilers, and any other listed equipment using native BACnet-compliant components. Non-BACnet-compliant or proprietary equipment or systems (including gateways) shall not be acceptable and are specifically prohibited.

WESTFIELD ELEMENTARY 23 0933 - 3

C. The Energy Management and Control System (EMCS) application program shall be written to communicate specifically utilizing BACnet protocols. Software functions delivered on this project shall include password protection, scheduling (including optimum start), alarming, logging of historical data, full graphics including animation, after-hours billing program, demand limiting, full suite of field engineering tools including graphical programming and applications. Systems using operating systems other than that described above are strictly prohibited. All software required to program application specific controllers and all field level devices and controllers will be left with the owner.

All software passwords required to program and make future changes to the system will also become the property of the owner. All software required to make any program changes anywhere in the system along with scheduling, and trending applications will be left with the owner. All software passwords required to program and make future changes to schedules, trends and related program changes will also become the property of the owner. All software required for all field engineering tools including graphical programming and applications will be left with the owner. All software passwords required to program and make future changes to field engineering tools including graphical programming and applications will be left with the owner.

D. Building controllers shall include complete energy management software, including scheduling building control strategies with optimum start and logging routines. All energy management software and firmware shall be resident in field hardware and shall not be dependent on the operator's terminal. Operator's terminal software is to be used for access to field-based energy management functions only. Provide zone-by-zone direct digital logic control of space temperature, scheduling, runtime accumulation, equipment alarm reporting, and override timers for after-hours usage.

E. All application controllers for every terminal unit (CUH, R T U , FC, UV, etc.) air handler, rooftop, and any other piece of controlled equipment shall be fully programmable.

Application controllers shall be mounted next to controlled equipment and communicate with building controller via BACnet LAN.

F. Room sensors shall be provided with digital readout that allow the user to view room temperature, view outside air temperature, adjust the room setpoint within preset limits and set desired override time. User shall also be able to start and stop unit from the digital sensor. Include all necessary wiring and firmware such that room sensor includes field service mode. Field service mode shall allow technician to balance HVAC zones and access any parameter in zone controller.

G. The DDC/Energy system will be capable of different access levels for the different control and engineering functions of the system. The School District maintenance staff will have access at the highest level to allow for DDC program, graphic pages, and other changes and additions.

H. The DDC/Energy Management system will have dynamic alarm display capability. If an alarm should occur at a remote location or system, that alarm shall generate a message on whatever screen happens to be on the current display. All alarms shall be logged on the system printer. The system will be capable of printing logs and trends. It will also be capable of displaying graphic trend information for all points.

I. The DDC/Energy Management system will have a graphic page for each major mechanical piece of equipment or system (I.E.: boilers, chillers, fans, etc.). From these pages, there will be "live" readouts of temperatures, pressures, RH levels, on/off status, valve and damper positions, outside air temperature, etc. It shall be possible from this screen to perform setpoint changes, equipment on/off overrides, implement "test" status and values, without additional screen or program manipulation.

J. Functions such as equipment schedules and reset schedules shall be accessed from editing screens. All functions shall be protected with different levels and passwords.

WESTFIELD ELEMENTARY 23 0933 - 4

K. There will also be a floor plan(s) which will show the location of rooms, room sensors, etc., and will give a "live" display of the current condition of that location. Room temperatures will be adjustable from this graphic. Outside air temperature will also display on this graphic.

Larger buildings will require more than one of these floor plan pages. No more than 40 points should be on any one page.

L. All system and unitary controls shall be of the direct digital type (DDC). Self-tuning PID

(Proportional, Integral, Derivative) control algorithms shall be applied where applicable on all applications. The control system shall be a networked, distributed intelligence system, with the control loops for each system being capable of stand-alone operation.

1. ATC contractor shall provide a 5 minute UPS system for the Master Building control panel. UPS shall be used during changeover to emergency power.

M. The system shall include all control devices, valves and damper parts as called for hereinafter.

N. Building power monitoring: Division 251000 contractor shall provide the necessary panels, inputs, and outputs as required for monitoring power for 120 volt and 460 volt power thru the DDC system. See Division 26 requirements.

1.5 WORK TO BE PERFORMED BY OTHERS

A. Division 26 shall furnish and install all single phase and multiple phase electrical power wiring to magnetic starters, disconnect switches, VFD's and motors. Division 26 shall also provide 120 VAC, 20 Ampere power sources to each group of ATC panels and VAV boxes as shown.

The ATC contractor shall be responsible for all step-down transformers and 24 VAC wiring to ATC equipment.

B. The sheet metal contractor shall install all dampers supplied by the ATC contractor. Each damper shall be installed so that it will operate freely and without binding. To ensure that the damper both opens and closes completely with less than 7#/sq. ft. torque applied at the operating shaft, each damper shall be checked after its installation, but before the damper actuators are attached. Dampers not properly installed or meeting this torque requirement shall be replaced and/or reinstalled without additional cost to the ATC contractor or the Alpine School District.

C. The mechanical contractor shall install all valves, immersion wells and pressure taps supplied him by the ATC contractor.

1.6 INSTALLATION BY AUTOMATIC TEMPERATURE CONTROL (ATC) CONTRACTOR

A. The ATC contractor shall furnish and install all necessary electrical control wiring and conduit for the complete temperature control system, heating and ventilating equipment motor starting circuit controls and all electrical control interlocks for same, and for control wiring for miscellaneous HVAC equipment furnished by the Owner.

B. The ATC contractor shall furnish & install all necessary electrical control wiring and conduit of all temperature controls, heating and ventilating equipment motor starting circuit controls, all electrical control interlocks for same and for miscellaneous packaged equipment.

C. All line and low voltage electrical and control wiring in walls, concealed areas, air handling fan rooms, boiler rooms and mechanical rooms shall be installed in EMT conduit & in accordance with the 2012 version of the National Electrical Code and applicable local codes and in accordance with Division 26 of this specification. 3/4" nominal trade conduit shall be installed. Plenum cable may be installed above ceiling areas in plenum rated cable. All ATC rough-in boxes shall be identified with the letters "ATC" written across the inside of the box. In addition, each ATC cover plate shall be painted white with the letters "ATC" stenciled in black.

WESTFIELD ELEMENTARY 23 0933 - 5

D. Plenum rated cable may be used in lieu of conduit above drop-in ceilings.

1. Cables shall be run neat and straight, above ceiling without sagging.

2. Cables shall not rest on or be supported by the ceiling.

3. Cables shall be grouped according to system. Grouped cables shall be Velcroed together, NO zip ties shall be used.

4. Velcro straps shall be tagged with the various system and identified on 20 foot centers.

5. Cables shall not receive excessive force when being installed.

6. Cables that have been damaged during installation shall be replaced at contractors' expense. Contractor shall verify that all connections are in proper working order, terminated correctly and provide documentation to engineer prior to final walk through.

7. All cables being run (not in conduit) shall, as a minimum standard, be listed and appropriately labeled as being resistant to the spread of smoke and fire in accordance with applicable article of NFPA-70 (NEC).

E. Cables run exposed (without ceiling or in mechanical rooms), shall be installed in ¾ ” EMT conduit. If conduit is installed reuse the raceway. When connecting to controllers, valves, etc. that have no provisions for EMT connections, EMT may terminate in a junction box located within 36" of the device. When making a transition between EMT and plenum cable, protect cable from abrasion by installing an insulation connector or equivalent on the exposed end of the EMT. All ATC rough in boxes shall be identified with the letters "ATC" written by permanent means across the inside of the box. In addition , each ATC cover plate shall be painted white with the letters "ATC" stenciled in black.

1.7 QUALITY ASSURANCE

A. Provide a TWO-YEAR parts and service warranty. This warranty shall commence at the time of demonstration of system completion of portions of the ATC system. Emergency response (for system operation and life safety) by contractor shall be available 24 hrs/day 7 days/week 365 days/year. Response time shall not be greater than 12 hours from time of call.

B. All parts and material and their installation methods shall be in accordance with the manufacturer’s recommendations and specifications. All parts and material shall be new.

C. The Contractor or firm executing the work of this section shall have at least 5 years' experience in completing work of similar scope and nature to that specified.

1.8 SUBMITTAL AND TECHNICAL INFORMATION

A. Submit shop drawings (6 sets) and manufacturers data for the following items to the mechanical engineer:

1. Wiring and installation diagrams.

2. ATC device specification sheets

3. Point list

4. Control flow diagrams, complete with all control schematics and sequences of operation.

5. Documentation of all software and hardware. These manuals shall be complete with installation procedures as well as startup and programming instructions. They should also contain any testing or maintenance procedures required to operate system on a continuing basis.

1.9 PROJECT COMPLETION REQUIREMENTS

A. Upon completion of the project, the ATC contractor shall spend a minimum of 24 hours with the Alpine School District maintenance personnel to adequately instruct them on the operation and maintenance of the system. These training sessions shall be scheduled at times convenient to the School District and shall be conducted at the project.

WESTFIELD ELEMENTARY 23 0933 - 6

B. Provide (1) bond hard copy and (3) copies on CD Rom of the project operating and maintenance instruction manuals for use during the training sessions. Each manual shall contain all system components and DDC system programming.

C. The ATC contractor shall provide as part of his contract the on-site services of a programmer familiar with the system for an additional 24 hours which the Engineer and/or the School District may use as they see fit to fine-tune or add features to the system.

D. The ATC contractor shall provide as part of his contract the on-site services of a technician familiar with the system to assist the air & water balance contractor in completing his portion of the project. The technician shall be available for a minimum of an additional 32 hours for this assistance.

E. Operation & Maintenance Manuals: Provide 4 manuals in addition to those manuals specified above. These manuals shall provide descriptions of maintenance procedures for all system components, including sensors and controlled devices. They shall cover inspection, periodic preventative maintenance, fault diagnosis, and repair or replacement of defective components. They shall include complete as-built ATC installation drawings with sequences of operation for all mechanical systems controlled by the ATC contractor.

They shall each include both a hard copy & CD Rom of all as -built system programming.

PART 2- EQUIPMENT

2.1 DDC INPUT DEVICES:

A. All DDC input devices shall provide industry standard signals and shall be compatible with the DDC controllers used.

B. All temperature input devices shall have a rated accuracy of 1% or better.

C. Temperature input devices for coils on rooftop units shall have averaging elements.

D. All pressure input devices shall have a rated accuracy of 2% or better. Pressure transmitters shall be selected to match the application and shall not be damaged by pressures at five times the maximum measurable pressure.

E. Miscellaneous input devices shall have accuracies as individually specified. All miscellaneous devices shall be specifically identified (with specifications) with submittals.

2.2 DDC OUTPUTS

A. Modulating outputs shall be in accordance with industry standards and shall be compatible with the driven DDC devices.

B. Outputs shall be 0-10 VACNOC or 0.5 sec - 5.0 sec. 4-20 MA.

C. DDC digital outputs shall be either relay contact closures or Triacs rated for the application.

2.3 DUCT SMOKE DETECTORS

A. Duct smoke detectors are to be furnished and wired by Division 26. Detectors shall be installed by the ATC contractor. Detectors will be provided for the return air inlet.

B. Detectors shall be wired to allow monitoring by the DDC system as well as the fire alarm system.

C. Division 26 shall furnish & install a fire alarm/fan shutdown relay at each fan system.

WESTFIELD ELEMENTARY 23 0933 - 7

D. The ATC contractor shall wire…