DIVISION 23 HEATING, VENTILATING AND AIR CONDITIONING (HVAC)

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1 DIVISION 23 HEATING, VENTILATING AND AIR CONDITIONING (HVAC) HEATING, VENTILATING AND AIR CONDITIONING (HVAC) A. All equipment shall be furnished with the manufacturer s installation directions and operating and maintenance instructions. B. Provide positive ventilation in equipment rooms to prevent damage from heat and humidity. C. Design conditions shall conform to ASHRAE/IESNA 90.1, codified version. D. Outside air intakes should be located so they will not be contaminated by fume hood exhaust, building exhausts, vents or motor exhausts. E. Do not use electric heating coils or electric heat without Owner approval. F. In general, systems shall provide heating and cooling year-round to accommodate the desired occupancy. 1. Proposed systems require life cycle costing and compliance with the ASHRAE/IESNA 90.1, codified version. a) The impact of central system zoning needs consideration. The cost analysis must include the operational costs as the building is operated and not be based on square footage costs alone. Zoning of the systems by occupant function, and the ability to shut down areas occupied only during regular university hours is strongly encouraged. b) The impact of the mechanical selection should include the maintenance costing as well as the energy cost impact. 2. Wherever possible, the sources of energy should be from the central heating plant. a) The source of heat should be steam in all cases. b) The source of humidification should be steam, unless the economies of operation dictate the use of another method (i.e., evaporative). 3. When radiation systems are supplied, they must not be string type radiation. Each piece should be connected to the supply and return independently COMMON WORK RESULTS FOR HVAC TESTING, ADJUSTING, AND BALANCING Contact UNI for instruction on whether UNI will issue separate purchase order or include in contract. If separate purchase order is issued, the Design Professional shall provide plans and specifications to use in obtaining quotes. 07/2015 1

2 INSTRUMENTATION AND CONTROL FOR HVAC The Design Professional is solely responsible for the design of the HVAC control systems. During the design process, the Design Professional shall review control strategies with the Owner. Siemens will develop control drawings to be included in the bidding documents. Siemens is the only approved BAS vendor. For projects with a construction budget under $100,000, the installation of the controls systems shall be included in the contractor s bid. For projects with a construction budget over $100,000, Siemens will provide the Owner with the price of their bid. The Siemens bid, once approved by Owner, shall be included as an allowance in the bidding documents as part of the addenda. All installation work shall be as per the following matrix. This matrix shall be included in the bidding documents. Electrical Contractor EC Mechanical Contractor MC Sheet Metal Contractor SMC Manufacturer MF Provided By Installed By Controls Provided By Item Wired By Control dampers that are not within the AHUs Siemens SMC N/A N/A Control dampers within the AHUs SMC MF N/A N/A Damper actuators Siemens EC EC N/A Air flow measuring stations Siemens EC EC Siemens Differential pressure transmitters Siemens EC EC N/A Duct detectors Siemens EC EC N/A VFDs w/bypass & BAS interface software Siemens EC EC N/A Notes Start up by Siemens VAV box SMC SMC EC Siemens Meters w/direct input to BAS Siemens MC EC N/A 24VAC power Generator EC EC EC N/A Building automation system wire, size 1 EC EC EC N/A Building automation system wire, size 2 EC EC EC N/A Building automation system wire, size 3 EC EC EC N/A Motion sensors with aux contact to BAS EC EC EC Siemens See Anixter wire spec See Anixter wire spec See Anixter wire spec 07/2015 2

3 Lighting system contactors/relays Siemens EC EC N/A Siemens Preferred EC or MF EC or MF Siemens Preferred ERV Controls/VFDs Wire terminations of controls wiring, both ends N/A EC EC N/A Prefer controls by Siemens, if not, Siemens to provide interface to unit See Siemens Drawings Ensure pneumatic lines for controls include an independent support system and not in contact with any sharp or rough edges/materials. All pneumatic lines are to be plugged with ¼ inch brass double barbed fittings. Standard guide specifications are available from the University. Control wiring is to be included in Division 17 specifications INSTRUMENTATION AND CONTROL DEVICES FOR HVAC ACTUATORS AND OPERATORS PART 1 PRODUCTS 1.1 General A. Electric actuation is preferred for major systems such as heat exchangers, air handlers, chilled water systems, etc. except as noted/specified otherwise. 1.2 ACCEPTABLE MANUFACTURER / SUPPLIER Siemens Industry, Inc. PART 2 DEVICES 2.1 Valve Actuators Electronic A. Reheat and/or Baseboard Radiation Service VAC, 3 position (floating) control, fail-in-place. Basis of design is Siemens SSC81-U. B. Major System Service VAC, proportional control, spring return. a) Basis of design for ¾-inch stroke: SKD62UA or SKB62UA as required by close-off. b) Basis of design for 1½-inch stroke: SKC62UA. 07/2015 3

4 2.2 Valve Actuators Electronic A. Electronic actuation shall be used for reheat or baseboard radiation service in direct-digital control applications. B. Hot and Chilled Water Service 1. Basis of design for ¾-inch stroke: Siemens Electronic Valve Actuator as required by application and valve size. 2. Basis of design for 1½-inch stroke: Siemens Electronic Valve Actuator as required by application and valve size. C. Steam Service 1. Basis of design for ¾-inch stroke: Siemens High Temperature Electronic Valve Actuator as required for application and valve size. 2. Basis of design for 1½-inch stroke: Siemens Electronic Valve Actuator as required for the application and valve size. 2.3 Damper Actuators - Electronic A. Actuators shall employ brushless motor technology with stall protection. They shall be bi-directional with all-metal housing and manual override. Independently adjustable dual auxiliary switches and heated auxiliary enclosures shall be optionally available. Actuators shall possess sufficient torque to provide smooth modulating or two-position action and proper close-off as specified at the velocity and pressure conditions to which the damper will be subjected. 1. Actuators for terminal box control applications shall be 24 VAC, 3-position (floating) control, fail-in-place. 2. Actuators for major system service shall be 24 VAC proportional control or twoposition control as specified with fail-safe spring return. 3. Actuators shall include the necessary and proper mounting and connection hardware for mounting and connection to a standard ½-inch damper shaft, and shall be capable of direct connection without the need for connection linkages. 4. Actuators having more than 100 in-lbs. of available torque output shall have a self-centering damper shaft clamp that will accept a 1-inch shaft directly, without the need for auxiliary adapters. The self-centering clamp shall guarantee concentric alignment of the actuator s output coupling with the damper shaft. The self-centering clamp shall have a pair of opposed v - shaped toothed cradles, each having two rows of teeth to maximize holding strength. A single clamping bolt shall simultaneously drive both cradles into contact with the damper shaft. 07/2015 4

5 5. Actuators shall be designed and manufactured using ISO 9001 registered procedures, and shall be listed under Standards UL873 and CSA22.2 No I. 6. Basis of design: Siemens OpenAir Direct-coupled Electronic Damper Actuators with torque selected according to application SENSORS AND TRANSMITTERS PART 1 GENERAL 1.1 ACCEPTABLE MANUFACTURER / SUPPLIER Siemens Industry, Inc. PART 2 PRODUCTS 2.1 Temperature Sensors A. Room sensors for terminal box applications 1. Sensors shall monitor room temperatures between 55 F and 95 F. 2. Sensing element shall be 100K-ohm NTC thermistor. 3. Calibration point: 100, F. 4. Accuracy at calibration point: ±0.5 F. 5. Setpoint adjustment, day/night override button and temperature display shall be optionally available. 6. If specified, setpoint and temperature display range shall be 55 F - 95 F. 7. Output signal: changing resistance B. Room sensors for monitoring only applications 1. Range for field panel termination: -40 F F nominal. 2. Range for terminal box/remote termination: -40 F F nominal. 3. Element for field panel termination: 1000-ohm platinum, two-wire 4. Element for terminal box/remote termination: 100K-ohm NTC thermistor, twowire 5. Calibration point 1000-ohm: F. 6. Calibration point 100K-ohm: 100, F. 07/2015 5

6 7. Accuracy at calibration point: ±0.5 F. 8. Output signal: changing resistance C. Liquid Immersion temperature sensors 1. Range shall be -40 F F nominal. 2. Sensing element: 1000-ohm platinum, two wire 3. Calibration point: F. 4. Accuracy at calibration point: ±0.5 F. 5. Output signal: changing resistance 6. Sensors shall be supplied with 2.5-inch stainless steel well, threaded ½-inch NPT male unless specified otherwise elsewhere. D. Duct temperature sensors averaging type 1. Range shall be -40 F F nominal. 2. Sensing element: 1000-ohm platinum, two wire 3. Calibration point: F. 4. Accuracy at calibration point: ±0.5 F. 5. Output signal: changing resistance 6. Element length shall be 1.5 feet, 2 feet, or 4 feet if rigid, 25 feet if flexible, as required/where specified. E. Duct temperature sensors single point type 1. Range shall be -40 F F nominal. 2. Sensing element: 1000-ohm platinum, two wire 3. Calibration point: F. 4. Accuracy at calibration point: ±0.5 F. 5. Output signal: changing resistance 6. Sensor shaft length shall be 12 inches minimum, with insertion depth adjustable at mounting bracket. 07/2015 6

7 F. Outdoor air temperature sensors 1. Range shall be -40 F F nominal. 2. Sensing element: 1000-ohm platinum, two wire 3. Calibration point: F. 4. Accuracy at calibration point: ±0.5 F. 5. Output signal: changing resistance 6. Sensor shall be installed away from any intake and/or exhaust airstreams, under a sunshield. 2.2 Pressure Sensors A. Fluid pressure sensors 1. Range: 0-30 psig 0-60 psig psig psig 2. Sensing element: ceramic strain gage 3. Output signal: 4 20mA DC 4. Calibration adjustments: zero and span 5. Accuracy: ± 0.2% of span 6. Linearity: ± 0.1% of span 7. Hysteresis: ± 0.05% of span B. Liquid Differential Pressure Sensors 1. Range: 0-25 psid 0-50 psid 0-60 psid psid 2. Sensing element: ceramic strain gage 3. Output signal: 4 20mA DC 4. Calibration adjustments: zero and span 07/2015 7

8 5. Accuracy: ± 0.2% of span 6. Linearity: ± 0.1% of span 7. Hysteresis: ± 0.05% of span 8. Basis of design: Setra 230 C. Duct and Building Static Pressure Sensors 1. Range: 0 - ±0.10 inches WC 0 - ±0.25 inches WC 0 - ±1.00 inches WC 0 - ±2.50 inches WC inches WC inches WC inches WC inches WC 2. Sensing element: ceramic strain gage 3. Output signal: 4 20mA DC 4. Calibration adjustments: zero and span 5. Accuracy: ± 0.2% of span 6. Linearity: ± 0.1% of span 7. Hysteresis: ± 0.05% of span 8. Basis of design: Setra 264 D. Differential Pressure Switches (Status Applications) 1. Liquid applications A. Range: 8 70 psig B. Differential: 3 psig C. Maximum differential pressure: 200 psig D. Maximum working pressure: 325 psig E. Basis of design: Penn P74 07/2015 8

9 2. Airflow applications 2.3 Humidity Sensors A. Range: inches WC inches WC B. Basis of design: Siemens Building Technologies SW141 A. Range: 0 100% RH B. Sensing element: bulk polymer; element shall be field replaceable C. Accuracy: 77 F D. Output signal: 4 20mA DC 2.4 Insertion Flow Meters A. Range: as required/specified B. Sensing method: turbine wheel C. Accuracy: ±2% of actual reading D. Output signal: 4 20mA DC E. Maximum operating pressure: 400 psig F. Shall be bi-directional where required/specified G. Basis of design: Data Industrial Insertion Turbine 2.6 Current Sensing Relays A. Relays shall be solid-state, adjustable, current operated type B. Relays shall change switch contact state in response to an adjustable setpoint value of current in the monitored AC circuit. C. Relay switch point shall be adjusted so that the relay responds to motor operation under load as an on state and so that the relay responds to an unloaded motor as an off state. A motor with a broken belt or coupling is considered an unloaded motor. D. Basis of design for constant speed applications: Veris HawkEye H608 or H908 E. Basis of design for variable speed (VFD) applications: Veris HawkEye H Air Flow Measurement Stations 07/2015 9

10 A. Duct Locations 1. Each insertion station shall contain an array of velocity sensing elements and straightening vanes. 2. The velocity sensing elements shall be of the RTD or thermistor type. The sensing elements shall be distributed across the duct cross section in a quality to provide accurate readings. 3. The resistance to airflow through the airflow measurement station shall not exceed 0.08 inches water gage at airflow of 2,000 fpm. 4. Station construction shall be suitable for operation at airflow of up to 5,000 fpm over a temperature range of -40 to 120 degrees F and accuracy shall be plus or minus 3 percent over a range of 125 to 2,500 fpm scaled to air volume. 5. Each transmitter shall produce a linear, temperature compensated output corresponding to the required velocity measurement. 6. Outdoor air stations shall consist of a load cell and associated electronics measuring pressure drop across a ¼ mesh galvanized steel screen. 7. Output shall be 4 20mA DC scaled in feet per minute (fpm) with range appropriate to the velocity in the duct, or alternatively in cubic feet per minute (cfm) if such output is available at the transmitter. 8. Basis of design: Ebtron Gold Series B. Fan Inlet Locations 1. Station shall contain parallel air straightener, total and static pressure sensing manifolds, internal piping and external pressure transmission ports with flexible tubing and quick-connect fittings. 2. Station shall be fabricated of galvanized steel and sized for the fan inlet in which it is mounted. 3. Maximum pressure loss through station shall be 0.08 inches WC at 1500 fpm. 4. Accuracy shall be 2%. 5. Identify by model number, size, area, and specified airflow capacity. 2.8 Low Temperature Detection Thermostats (LTDT) (Freezestats) 1. LTDT shall be four-wire, two-circuit type 2. Setpoint shall be 15ºF to 55ºF, adjustable 3. Provide manual reset 07/

11 4. LTDT shall be installed as indicated on the plans and shall provide protection for the coil such that one linear foot of element provides protection for one square foot of coil face area. 5. LTDT shall stop associated fans and return automatic dampers to their normal position upon detection of low temperature CONTROL VALVES PART 1 GENERAL 1.1 ACCEPTABLE MANUFACTURER / SUPPLIER Siemens Industry, Inc. 1.2 Related Section A Actuators and Operators PART 2 PRODUCTS 2.1 Valves 2-inch and smaller A. Proportional (modulating) Service 1. Rangeability shall be 100:1 at a minimum 2. ANSI Class 250, globe pattern body with screwed ends; 3. Body material shall be bronze 4. Body trim shall be stainless steel 5. Stem shall be polished stainless steel 6. Packing for steam service shall be high temperature type 7. Controlled medium: steam, water, glycol solutions to 50% 8. Flow characteristic liquid: modified equal percentage 9. Flow characteristic steam: linear 10. Control action: normally open, normally closed or three-way mixing as required/specified 11. For liquid service, valves shall be provided with characterized throttling plugs and shall be sized for minimum 25% of system pressure drop or 5 psig, whichever is less. 07/

12 B. Two-position Service 1. ANSI Class 250 body, screwed ends; shall be line size unless otherwise specified 2. Globe pattern or ball pattern, as required/specified 3. Body trim shall be stainless steel 4. Stem (or ball) shall be polished stainless steel 5. Packing for steam service shall be high temperature type 6. Control action: normally open or closed as required/specified 7. Controlled medium: steam, water, glycol solutions to 50% 2.2 Valves 2.5-inch and larger A. Proportional (modulating) Service 1. Rangeability shall me 100:1 at a minimum 2. ANSI Class 250, globe pattern body with flanged ends 3. Body material shall be cast iron 4. Body trim shall be stainless steel 5. Stem shall be polished stainless steel 6. Packing for steam service shall be high temperature type 7. Controlled medium: steam, water, glycol solutions to 50% 8. Flow characteristic liquid: modified equal percentage 9. Flow characteristic steam: linear 10. Control action: normally open, normally closed or three-way mixing as required/specified 11. For liquid service, valves shall be provided with characterized throttling plugs and shall be sized for minimum 25% of system pressure drop or 5 psig, whichever is less. 07/

13 B. Two-position Service 1. ANSI Class 250 body, flanged ends; shall be line size unless otherwise specified 2. Globe pattern unless otherwise specified 3. Butterfly pattern shall be used only on valve sizes larger than 6-inch. 4. Body trim shall be stainless steel 5. Stem shall be polished stainless steel 6. Packing for steam service shall be high temperature type 7. Control action: normally open or closed as required/specified 8. Controlled medium: steam, water, glycol solutions to 50% CONTROL DAMPERS PART 1 GENERAL 1.1 All dampers shall be low leakage with airfoil type blades 1.2 Related Section A Actuators and Operators PART 2 PRODUCTS 2.1 ACCEPTABLE MANUFACTURERS T. A. Morrison (TAMCO) (1500 series), Arrow AFD, Ruskin CD Construction A. Frames shall be extruded aluminum hat channels with minimum inch thickness. B. Blades shall be extruded aluminum with maximum 6-inch blade width C. Hardware shall consist of molded synthetic or sealed ball bearings (as required/specified), zinc plated steel axles, linkage brackets, connecting rods and mounting bolts. D. Seals shall consist of silicone or flexible metal compression type at frame ends, and silicone or extruded vinyl inflatable type at blade edges. 07/

14 2.3 Leakage A. Leakage shall not be more than 6 cfm per square foot of damper area, measured at a minimum differential pressure of 4 inches WC with an applied torque of 50 inchpounds. 2.4 Operating Limits A. Temperature range: -25 F to 200 F B. Differential pressure: 6 inches WC C. Velocity: up to 4000 fpm 2.5 Selection A. Opposed blade type shall be used in proportional service B. Parallel blade type may be used for two-position service, and may be used in mixed air applications to promote improved air mixing. C. Sizing 1. Sizes shall be as indicated on the drawings. 2. Sizes differing from those indicated on the drawings may be provided if improved performance can be demonstrated by calculations. 3. Multiple sections may be provided to achieve required size. 4. When multiple sections are provided, individual sections shall in no case be larger than 6 by 6 feet DIRECT DIGITAL CONTROL SYSTEM FOR HVAC BUILDING AUTOMATION SYSTEM PART 1 - GENERAL 1.1 SCOPE OF WORK A. The Building Automation System (BAS) manufacturer, Siemens Industry, Inc., shall furnish and install a fully integrated building automation system, incorporating direct digital control (DDC) for energy management, equipment monitoring and control, and subsystems with open communications capabilities as herein specified. The BAS System will be Siemens Apogee. Provide open communications system. The system shall be an open architecture with the capabilities to support a multi-vendor environment. To accomplish this effectively, system shall be capable of utilizing standard protocols as follows as well as be able to integrate third-party systems via existing vendor protocols. 07/

15 System shall be capable of BACnet communication according to ASHRAE standard ANSI/ASHRAE/ISO System shall be capable of OPC server communications according to OPC Data Access 2.0 and Alarms and Events 1.0. The system shall not be limited to only use open communication protocols, but also be able to integrate a wide variety of third-party devices and applications via existing vendor protocols and through the latest software standards. The system shall provide for seamless read and write access by the main Siemens Industry, Inc. Apogee Building Automation System campus network. This shall include, but not be limited to, monitoring and reporting point data (particularly fire and /or security alarms), commanding points, modifying system set points and scheduling equipment through the existing Apogee network workstations. The intent is to allow information about the system provided in this contract to be sent to existing workstations accessing the Apogee system. The user shall have a single seat interface on the existing Siemens system from which to perform daily operation of the system provided in this contract. B. The installation of the building automation system shall be performed by the Electrical Contractor under the general supervision of the BAS manufacturer with the shop drawings, flow diagrams, bill of materials, component designation or identification number and sequence of operation all bearing the name of the manufacturer. The installing contractor shall certify, in writing, that the equipment manufacturer s personnel have prepared the shop drawings and that the equipment manufacturer s personnel have supervised the installation. In addition, the equipment manufacturer shall certify, in writing, that their company prepared the shop drawings and that all temperature control equipment was installed under their general supervision. C. All materials and equipment used shall be standard components, regularly manufactured for this and/or other systems and not custom designed specially for this project. All systems and components shall have been thoroughly tested and proven in actual use for at least two years. D. All wiring shall be done in accordance with all local and national codes WORK BY OTHERS A. Mechanical Constructor shall install the following: 1. Control valves. 2. Devices mounted in piping. 3. Terminal air box controllers (physical installation only, if not factory installed) 4. Control dampers. 5. Be responsible for any needed pneumatic demo. 6. Other devices that must be physically connected to piping or ductwork. B. Electrical Constructor shall provide: 07/

16 1. Provide power to power connections on control panels, including disconnects and required electrical devices. 2. Provide interlock wiring between electrically operated equipment units and between equipment and field installed control devices as indicated on the Electrical and/or Building Automation drawings. C. Products furnished but not installed under this section: 1. Section Instrumentation and Control Devices for HVAC: a and Actuators and Control Valves b Sensors and Transmitters - Flow Switches c Sensors and Transmitters Temp Sensors d Sensors and Transmitters Flow Meters 2. Section Instrumentation and Control Devices for HVAC: a and Actuators and Dampers b Sensors and Transmitters - Air-flow Stations c Actuators and Operators - Terminal Unit Actuators D. The Electrical Constructor or BAS Electrical Installer shall be present for the verification of the Building Automation System wiring, commissioning and operational checkout. The Electrical Constructor or BAS Electrical Installer shall provide an electrician to assist the BAS personnel during point-to-point checkout of the BAS. The Electrical Contractor or BAS Electrical Installer shall assist with all troubleshooting of the BAS on an as-needed basis. E. The Mechanical Constructor shall be present for the verification of the Building Automation System control damper and control valve point-to-point checkout, control air piping pressure test, commissioning and operational checkout. F. Completed work shall demonstrate compatibility with both the current and next generation of the Campus Building Automation System without bridges, routers, gateways or protocol converters. Provide for connection to the existing Building Automation System. 1.3 RELATED WORK A. Division AA AA AA General and Special Conditions B. Division XX XX XX Mechanical C. Division 26 and/or 27 Electrical, including Low Voltage 1.4 QUALITY ASSURANCE A. The BAS system shall be designed, commissioned and serviced by manufacturer-employed, factory-trained personnel. Manufacturer shall have an in-place branch office support facility within 120 miles of the site with technical 07/

17 staff, spare parts inventory and necessary test and diagnostic equipment. Distributors or licensed installing Constructors are not acceptable. The manufacturer/supplier shall provide an experienced project manager for this work, responsible for general supervision of the installation, start up and commissioning of the BAS. The BAS supplier shall be regularly engaged in the manufacturing, installation and maintenance of BAS systems and shall have a minimum of ten (10) years of demonstrated technical expertise and experience in the manufacture, installation and maintenance of BAS systems similar in size and complexity to this project. The BAS supplier shall have a service organization consisting of competent factory-trained personnel, maintained for a period of not less than ten years and shall provide a list of 10 projects, similar in size and scope to this project, completed within the last five years. B. Materials and equipment shall be the catalogued products of manufacturers regularly engaged in production and installation of building automation systems and shall be the manufacturer's latest standard design that complies with the specification requirements. C. All BAS peer-to-peer Automation Level Network controllers, central system controllers and local user displays shall be UL Listed under Standard UL 916, category PAZX; Standard ULC C100, category UUKL7; and under Standard UL 864, categories UUKL, UDTZ, and QVAX and be so listed at the time of bid. All floor level controllers shall comply, at a minimum, with UL Standard UL 916 category PAZX, Standard UL 864, categories UDTZ, and QVAX and be so listed at the time of bid. D. All electronic equipment shall conform to the requirements of FCC Regulation, Part 15, Governing Radio Frequency Electromagnetic Interference and be so labeled. E. The manufacturer of the Building Automation System shall provide documentation supporting compliance with ISO-9002 (Model for Quality Assurance in Production, Installation, and Servicing) and ISO (The application of well-accepted business management principles to the environment). The intent of this specification requirement is to ensure that the products from the manufacturer are delivered through a Quality System and Framework that will assure consistency in the products delivered for this project. F. This system shall have a documented history of compatibility by design for a minimum of 15 years. Future compatibility shall be supported for no less than 10 years. Compatibility shall be defined as the ability to upgrade existing peer-topeer Automation Level Network controllers / field panels to the current level of technology and to execute said upgrade in increments of one panel at a time without the need to upgrade all controllers on the network. Compatibility shall also be defined as the ability to extend a previously installed network with new peer-to-peer Automation Level Network controllers / field panels. 07/

18 1. 5 SUBMITTALS Compatibility shall be further defined as the ability for any existing peer-to-peer Automation Level Network controller/field panel to be connected to, and directly communicate with, new peer-to-peer Automation Level Network controllers / field panels without bridges, routers or protocol converters. Information on this documented history shall be included in the technical proposal called for in Section 1.7 of this specification. A. Submit (8, or as required) complete sets of documentation in the following phased delivery schedule: 1. Valve and damper schedules 2. Equipment data cut sheets 3. System schematics, including: sequence of operations point names (furnished by Owner) point addresses interface wiring diagrams panel layouts system riser diagrams 4. Auto-CAD or Revit compatible as-built drawings B. Upon project completion, submit operation and maintenance manuals, consisting of the following: 1.6 WARRANTY Index sheet, listing contents in alphabetical order. Manufacturer's equipment parts list of all functional components of the system. Auto-CAD or Revit disk of system schematics, including wiring diagrams. System schematics, including sequence of operations. As-Built interconnection wiring diagrams. Operator's Manual. Trunk cable schematic showing remote electronic panel locations and all trunk data. List of connected data points, including panels to which they are connected and input device (e.g., temperature sensors, ionization detectors, etc.) Conduit routing diagrams A. Provide all services, materials and equipment necessary for the successful operation of the BAS system for a period of two (2) years after first beneficial use. 07/

19 B. The adjustment, required testing, and repair of the system includes all computer equipment (if furnished), DDC Controllers, HVAC & Mechanical Equipment Controllers, Application Specific Controllers, transmission equipment and all sensors and control devices. C. The on-line support services shall allow the local BAS supplier to dial out over telephone lines to monitor and control the facility's building automation system if this service is requested by the Owner. If so requested/specified, this remote connection to the facility shall be within 2 hours of the time that the problem is reported. This coverage shall be extended to include normal business hours, after business hours, weekends and holidays. If the problem cannot be resolved on-line by the local office, the national office of the building automation system manufacturer shall have the same capabilities for remote connection to the facility. If the problem cannot be resolved with on-line support services, or if so requested by the Owner, the BAS manufacturer / supplier shall dispatch the appropriate personnel to the job site to resolve the problem within 4 hours of the time that the problem is reported. 1.7 TECHNICAL PROPOSAL A. A technical proposal shall be prepared in accordance with these specifications. Four (4) copies of the proposal, each one bound in a three-ring binder, shall be submitted to the Owner within twenty-one (21) days after receipt of bids. Proposals that are unbound, loose in a file folder, stapled, stapled in a manila file folder, etc., will not be acceptable. The technical proposal shall include the following data / information as a minimum. The order of listing here is not intended to indicate, nor should it be construed to indicate, the relative importance of the data / information. The Owner and Engineer shall review this technical proposal for system completeness and compatibility with the Owner s existing installations. 1. Information on organizational capability to handle this project (management, personnel, manufacturing, single source responsibility, etc.) 2. Information on training program to demonstrate specification compliance. 3. System Configuration as Proposed: a) Description of system architecture, including a schematic layout with location and type (model number) and designation (DDC Controller or HVAC & Mechanical Equipment Controller) of all controllers / panels. b) Description of system operation, functions and control techniques. c) Information on system and field panel modularity. 07/

20 d) Provisions against obsolescence due to technological advancement. e) Hardware and software data sheets on any interfaces to thirdparty systems (e.g., chillers, fire alarm systems, etc.). 4. Technical data to support the information on the hardware configuration. 5. Detailed description of all operating, command, application and energy management software provided for this project. 6. A signed certificate stating that the BAS supplier has read and understood the performance and functional requirements, and that the technical proposal will comply with all parts of the specification. 7. Other requirements for inclusion in the technical proposal located elsewhere in this specification, Section 1.4 F in particular. PART 2 - PRODUCTS 2.1 ACCEPTABLE MANUFACTURER Siemens Industry, Inc. 2.2 NETWORKING COMMUNICATIONS A. The design of the BAS shall network operator workstations, stand-alone DDC Controllers and stand-alone HVAC & Mechanical Equipment Controllers. The network architecture shall consist of multiple levels for communication efficiency. An existing campus-wide Ethernet network based on TCP/IP protocol (Management Level Network), high performance dedicated peer-to-peer Automation Level Network(s) and DDC Controller / HVAC & Mechanical Equipment Controller floor level local area networks with access being totally transparent to the user when accessing data or when developing, editing, and implementing control programs. B. The design of the BAS shall allow the co-existence of new DDC Controllers and HVAC & Mechanical Equipment Controllers with existing DDC Controllers and HVAC & Mechanical Equipment Controllers on the same peer-to-peer Automation Level Network without the use of gateways, routers, or protocol converters. 1. System shall provide for seamless read and write access by the existing main Siemens Building Technologies (SBT) campus network. This shall include but not be limited to monitoring and reporting point data (particularly fire and /or security alarms), commanding points, modifying system set points and scheduling equipment through the existing Siemens Apogee network workstations. The intent of this section is to provide for daily operator functions to be completed from a single seat interface on the existing SBT network. 07/

21 C. Dedicated Peer-to-Peer Automation Level Network: 1. All operator devices shall have the ability to access all point status and application report data or execute control functions for any and all other devices via the peer-to-peer Automation Level Network. No hardware or software limits shall be imposed on the number of devices with global access to the network data at any time. 2. The peer-to-peer Automation Level Network shall support a minimum of 100 DDC Controllers and HVAC & Mechanical Equipment Controllers and/or PC workstations. 3. Each PC workstation shall be capable of supporting a minimum of 4 peer-topeer Automation Level Networks hardwired or dial-up. 4. The system shall support integration of third-party systems (e.g., fire alarm, security, lighting, PLC, chiller, boiler) via panel-mounted open protocol processors. This processor shall exchange data between the two systems for interprocess control. All exchanged points shall have full system functionality as specified herein for hardwired points. 5. Controllers must be capable of integration with open standards including Modbus, BACnet, and Lonworks as well as with third-party devices via existing vendor protocols. 2.3 CONTROLLER FLOOR LEVEL NETWORKS: A. This level of communication shall support a family of Application Specific Controllers and shall communicate with the peer-to-peer Automation Level Network through DDC Controllers and/or HVAC & Mechanical Equipment Controllers for transmission of global data. 2.4 DDC CONTROLLERS AND HVAC & MECHANlCAL EQUIPMENT CONTROLLERS A. The DDC Controllers and HVAC & Mechanical Equipment Controllers shall reside on the Automation Level Network(s). B. DDC Controllers and HVAC & Mechanical Equipment Controllers shall use the same programming language and/or tools. The programming language shall be text-based, similar to BASIC. DDC Controllers and HVAC & Mechanical Equipment Controllers that require different programming languages or tools for each type of controller are not acceptable. Graphical programming languages or tools are not acceptable. C. DDC Controllers and HVAC & Mechanical Equipment Controllers that do not meet the functions specified in Section and Section 2.5 for DDC Controllers or Section and Section 2.5 for HVAC & Mechanical Equipment Controllers are not acceptable DDC CONTROLLERS 07/

22 A. DDC Controllers shall be, at a minimum, 16-bit stand-alone, multi-tasking, multi-user, real-time digital control processors consisting of modular hardware with plug-in enclosed processors, communication controllers, power supplies and input/output point modules. Controller size shall be sufficient to fully meet the requirements of this specification and the attached point I/O schedule. Each controller shall support a minimum of three (3) Floor Level Application Specific Controller Device Networks. Basis of design is Siemens Apogee PXC Modular Controller. B. Each DDC Controller shall have sufficient memory to support its own operating system and databases, including: 1. Control processes 2. Energy management applications 3. Alarm management applications including custom alarm messages for each level of alarming for each point in the controller database. 4. Historical/trend data for points specified 5. Maintenance support applications 6. Custom processes 7. Password-protected Operator I/O 8. Dial-up communications (when required/specified) 9. Manual override monitoring C. Each DDC Controller shall support firmware upgrades without the need to replace hardware. D. Provide all processors, power supplies and communication controllers so that the implementation of a point only requires the addition of the appropriate point input/output termination module and wiring. E. DDC Controllers shall provide for RS-232C serial data communication for operation of operator I/O devices such as industry standard printers, operator terminals, modems and portable laptop operator's terminals. DDC Controllers shall allow temporary use of portable devices without interrupting the normal operation of permanently connected modems, printers or terminals. F. The operator shall have the ability to manually override automatic or centrally executed commands at the DDC Controller via local, point discrete, on-board operator override switches. These shall be hand/off/auto switches for digital control type points and gradual switches for analog control type points. 1. Switches shall be mounted within the DDC Controller s key-accessed enclosure to prevent unauthorized overrides. 2. DDC Controllers shall monitor the status of all overrides and inform the operator that automatic control has been inhibited. DDC Controllers shall also collect override activity information for reports. (** Note: Provide I/0 schedule for points needing manual override **) 07/

23 G. DDC Controllers shall provide local LED status indication for each digital input and output for constant, up-to-date verification of all point conditions without the need for an operator I/O device. Graduated intensity LEDs or analog indication of value shall also be provided for each analog output. Status indication shall be visible without opening the panel door. H. Each DDC Controller shall continuously perform self-diagnostics, communication diagnosis and diagnosis of all panel components. The DDC Controller shall provide both local and remote annunciation of any detected component failures, low battery conditions or repeated failure to establish communication. H. Isolation shall be provided at all peer-to-peer Automation Level Network terminations, as well as all field point terminations to suppress induced voltage transients consistent with: 1. RF-Conducted Immunity (RFCI) per ENV (IEC ) at 3 V 2. Electro Static Discharge (ESD) Immunity per EN (IEC ) at 8 kv air discharge, 4 kv contact 3. Electrical Fast Transient (EFT) per EN (IEC ) at 500 V signal, 1 kv power 4. Output Circuit Transients per UL 864 (2,400V, 10A, 1.2 Joule max) 5. Isolation shall be provided at all peer-to-peer panels AC input terminals to suppress induced voltage transients consistent with: a. IEEE Standard b. UL 864 Supply Line Transients c. Voltage Sags, Surge, and Dropout per EN (EN ) J. In the event of the loss of normal power, there shall be an orderly shutdown of all DDC Controllers to prevent the loss of database or operating system software. Non-volatile memory shall be incorporated for all critical controller configuration data and battery backup shall be provided to support the real-time clock and all volatile memory for a minimum of 20 days. 1. Upon restoration of normal power, the DDC Controller shall automatically resume full operation without manual intervention. 2. Should DDC Controller memory be lost for any reason, the user shall have the capability of reloading the DDC Controller via the local RS-232C port, via telephone line dial-in or from a network workstation PC. K. Provide separate DDC Controller(s) for each AHU or HVAC system (or group of systems) as indicated in Section 3.2. It is intended that each system or group of 07/

24 systems (as indicated in Section 3.2) be provided with its own point resident DDC Controller. L. Existing DDC controller(s) may be reused if applicable. If they are NOT REUSED, they shall be salvaged and retained by the Owner. Carefully remove and transmit intact to Owner s designated personnel for storage. If panels are reused, reuse point modules wherever possible, install replacements as required HVAC & MECHANICAL EQUIPMENT CONTROLLERS A. HVAC & Mechanical Equipment Controllers shall be, at a minimum, 12-bit standalone, multi-tasking, multi-user, real-time digital control processors consisting of modular hardware with enclosed processors. Basis of design shall be Siemens Apogee Modular Controller (PXM) or Compact Controller (PXC). B. Each HVAC & Mechanical Controller shall have sufficient memory to support its own operating system and databases, including: 1. Control processes 2. Energy management applications 3. Alarm management applications including custom alarm messages for each level of alarm specified for each alarmable point in the system. 4. Historical/trend data for points specified 5. Maintenance support applications 6. Custom processes 7. Operator I/O 8. Remote communications C. HVAC & Mechanical Equipment Controllers shall provide a RS-232C serial data communication port for operation of operator I/O devices such as industry standard printers, operator terminals, modems and portable laptop operator's terminals. D. HVAC & Mechanical Equipment Controllers shall provide local LED status indication for each digital input and output for constant, up-to-date verification of all point conditions without the need for an operator I/O device. E. Each HVAC & Mechanical Equipment Controller shall continuously perform self-diagnostics, communication diagnosis and diagnosis of all components. The HVAC & Mechanical Equipment Controller shall provide both local and remote annunciation of any detected component failures, low battery conditions or repeated failure to establish communication. F. The operator shall have, if required / specified, the ability to manually override automatic or centrally executed commands at the HVAC & Mechanical Equipment Controller via local, point discrete, on-board operator override switches. These shall be hand/off/auto switches for digital control type points and gradual switches for analog control type points. 07/

25 1. Switches shall be mounted either within the HVAC & Mechanical Equipment Controller s key-accessed enclosure, or externally mounted with each switch keyed to prevent unauthorized overrides. 2. HVAC & Mechanical Equipment Controllers shall monitor the status of all overrides and inform the operator that automatic control has been inhibited. HVAC & Mechanical Equipment Controllers shall also collect override activity information for reports. (** Note: Provide I/0 schedule for points needing manual override **) G. Isolation shall be provided at all peer-to-peer Automation Level Network terminations, as well as all field point terminations to suppress induced voltage transients consistent with: 1. RF-Conducted Immunity (RFCI) per ENV (IEC ) at 3 V 2. Electro Static Discharge (ESD) Immunity per EN (IEC ) at 8 kv air discharge, 4 kv contact 3. Electrical Fast Transient (EFT) per EN (IEC ) at 500 V signal, 1 kv power 4. Output Circuit Transients per UL 864 (2,400V, 10A, 1.2 Joule max) 5. Isolation shall be provided at all peer-to-peer panels AC input terminals to suppress induced voltage transients consistent with: a) IEEE Standard b) UL 864 Supply Line Transients c) Voltage Sags, Surge, and Dropout per EN (EN ) H. In the event of the loss of normal power, there shall be an orderly shutdown of all HVAC & Mechanical Equipment Controllers to prevent the loss of database or operating system software. Non-volatile memory shall be incorporated for all critical controller configuration data and battery backup shall be provided to support the real-time clock and all volatile memory for a minimum of 30 days. 1. Upon restoration of normal power, the HVAC & Mechanical Equipment Controller shall automatically resume full operation without manual intervention. 2. Should HVAC & Mechanical Equipment Controller memory be lost for any reason, the user shall have the capability of reloading the HVAC & Mechanical Equipment Controller via the local RS-232C port, via telephone line dial-in (if so specified) or from a network workstation PC. 07/

26 3. Provide a separate HVAC & Mechanical Equipment Controller for each AHU or other HVAC system (or group of systems) as indicated in Section 3.2. It is intended that each system or group of systems (as indicated in Section 3.2) be provided with its own point resident HVAC & Mechanical Equipment Controller. 2.5 DDC CONTROLLER AND HVAC & MECHANICAL EQUIPMENT CONTROLLER RESIDENT SOFTWARE FEATURES A. General: 1. The software programs specified in this Section shall be provided as an integral part of DDC Controllers and HVAC & Mechanical Equipment Controllers and shall not be dependent upon any higher level computer for execution. 2. All points shall be identified by up to 30-character point name and 15- character point descriptor. The same names shall be used at the PC workstation. These names and their associated addresses shall be unique in the entire system, and not merely in the controller or in a point grouping. 3. All digital points shall have user defined two-state status indication (descriptors with minimum of 8 characters allowed per state, e.g. SUMMER / WINTER). B. Control Software Description: 1. The DDC Controllers and HVAC & Mechanical Equipment Controllers shall have the ability to perform the following pre-tested control algorithms: a) Two-position control b) Proportional control c) Proportional plus integral control d) Proportional plus integral plus derivative control e) Automatic tuning of P only, PI and PID control loops f) Model-free adaptive control - multiple or single output C. DDC Controllers and HVAC & Mechanical Equipment Controllers shall provide the following energy management routines for the purpose of optimizing energy consumption while maintaining occupant comfort. 1. Start-Stop Time Optimization (SSTO) shall automatically be coordinated with event scheduling. The SSTO program shall start HVAC equipment at the latest possible time that will allow the equipment to achieve the 07/

27 desired zone condition by time of occupancy. The SSTO program shall also shut down HVAC equipment at the earliest possible time before the end of the occupancy period, and still maintain desired comfort conditions. a) The SSTO program shall operate in both the heating and cooling seasons. 1) It shall be possible to apply the SSTO program to individual fan systems. 2) The SSTO program shall operate on both outside weather conditions as well as inside zone conditions and empirical factors. b) The SSTO program shall meet the local code requirements for minimum outside air while the building is occupied. 2. Event Scheduling: Provide a comprehensive menu driven program to automatically command designated points or groups of points according to a stored time. a) It shall be possible to individually command a point or group of points. b) For points assigned to one common load group, it shall be possible to assign variable time delays between each successive start or stop within that group. c) The operator shall be able to define the following information: 1. Time, day, month and year 2. Commands such as on, off, change of setpoint, etc. 3. Time delays between successive commands. d) It shall be possible to schedule events up to one (1) year in advance. 3. Economizer 1. Scheduling shall be calendar based. 2. Holidays shall allow for different schedules. 3. There shall be provisions for manual overriding of each schedule by an appropriately authorized operator. 07/

28 a) The Energy Management Control Software (EMCS) will control the position of air handling unit outdoor air, return air and relief air dampers. If outdoor air dry bulb temperature falls below changeover setpoint, or if outdoor air enthalpy falls below enthalpy changeover setpoint (whichever method is specified), the EMCS will modulate the dampers toward 100% outdoor air as necessary to maintain mixed air temperature. Above the changeover setpoint the EMCS will position the dampers for minimum outdoor air. b) The operator shall be able to override the economizer cycle and return to mixed air operation at any time. 4. Temperature-compensated duty cycling a) The DCCP (Duty Cycle Control Program) shall periodically stop and start loads according to various patterns. b) The loads shall be cycled such that there is a net reduction in both the electrical demands and the energy consumed. 5. Automatic Daylight Savings Time Switchover: The system shall provide automatic time adjustment for switching to/from Daylight Savings Time. 6. Night/unoccupied setback control: The system shall provide the ability to automatically adjust setpoints for night/unoccupied control. 7. The Peak Demand Limiting (PDL) program shall limit the consumption of electricity to prevent electrical peak demand charges. a) PDL shall continuously track the amount of electricity being consumed, by monitoring one or more electrical kilowatthour/demand meters. These meters may measure the electrical consumption (kwh), electrical demand (kw), or both. b) PDL shall sample the meter data to continuously forecast the demand likely to be used during successive time intervals. c) If the PDL forecasted demand indicates that electricity usage is likely to exceed a user preset maximum allowable level, then PDL shall automatically shed electrical loads. d) Once the demand peak has passed, loads that have been shed shall be restored and returned to normal control. D. DDC Controllers and HVAC & Mechanical Equipment Controllers shall be able to execute custom, job-specific processes defined by the user, to automatically perform calculations and special control routines. 07/