RESPONSES TO BIDDERS QUESTIONS:

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1 ADDENDUM 2 KODIAK ISLAND BOROUGH PETERSON BOILER AND CONTROL REPLACEMENT Kodiak, AK April 1, 2016 TO ALL PLAN HOLDERS OF RECORD: This addendum forms part of and modifies the contract documents as noted below. Bidders must acknowledge receipt of this addendum in the space provided on the Acknowledgement of Addenda form. Failure to do so may submit Bidder to disqualification. This addendum consists of 2 pages. RESPONSES TO BIDDERS QUESTIONS: 1. Question: Sheet M102, Note 7 says Demolish all existing controls, actuators, heating coils, and sensors from AKH-6(E). Demolish existing AHU-6(E) heating coil circulation pump, CP-5, expansion tank glycol mix tank, and heat exchange, HX-1. Existing AHU-6(E) heating coil to remain, demolish control valve. It appears to say the heating coil gets both demolished and remains. Response: The AHU-6 heating coil is to be demolished and replaced with new heating coil as indicated on Detail 4, Sheet M Question: Is there any fire alarm work required in the boiler room? There appears to be a blanked out heat detector. Response: There is no fire alarm work within this project. The heat detector will be replaced by KIBSD maintenance staff. 3. Question: Will there be an opportunity for future site visits? Response: Additional visits will be addressed elsewhere in this addendum PROJECT MANUAL: 1. Add: 00900, Documents Required at Closeout, attached 2. Invitation to Bid: Change the heading under 1.1 from East Elementary Schools Roof Replacement to Peterson Boiler Control Replacement. 3. Invitation to Bid, 1.1: Change the time of the bid opening from 3:00 P.M. to 4:00 P.M. 4. Invitation to Bid, 1.1: Add the following to paragraph G: Additional site visits can be scheduled by contacting Matt Gandel at All registered bidders will receive notice of any additional site visits. 4. REPLACE Section with the attached revised Section Section : a. REPLACE Paragraph 3.6 with the following: The S/A desired temperature shall be reset based on the room sensors, adjusting the calculated S/A setpoint up or down between 55 Deg F and 95 Deg F as required to maintain the room temperature setpoint. KODIAK ISLAND BOROUGH ADDENDUM 2 PETERSON BOILER CONTROL REPLACEMENT PAGE 1

2 b. ADD Paragraph 3.14 and 3.15 to read as follows: 3.14 RADIANT FLOOR HEATING A. Alarms: 1. Low Space Temperature. 2. High Space Temperature. 3. High Supply Temperature. 4. Pump Failure. B. Digital Control and Monitoring 1. Space Temperature Indication. 2. Space Temperature Setpoint. 3. Supply Temperature Indication. 4. Supply Temperature Setpoint. 5. Return Temperature Indication. 6. Control Valve Indication (on/off and modulating valves). 7. Pump on/off control. 8. Pump status. 9. Alarm Setpoints. C. Automated Control: 1. Day Mode: Valve shall cycle to maintain room setpoint temperature. 2. Night Mode: Valve shall cycle to maintain night setback temperature. 3. When one of the zone control valves is open the radiant floor heat circulation pump shall be on, when both of the zone control valves are closed the pump shall be off. Modulate the 2-way valve from the main heating system to maintain the radiant floor heating loop temperature at 110 degrees F (Initial setting, adjustable) TOILET EXHAUST FAN A. Alarms: 1. Fan Failure. B. Digital Control and Monitoring 1. Fan on/off control. 2. Fan status. 3. Alarm Setpoints. C. Automated Control: 1. The toilet exhaust fan for the classroom wing shall operate on/off with the associated air handling unit AHU-6. DRAWINGS: 1. Sheet M102, Sheet Note 7, REVISE last sentence of note to read Demolish AHU-6E heating coil and control valve. Provide new heating coil, See Detail 4, Sheet M203. END OF ADDENDUM NO. 2 KODIAK ISLAND BOROUGH ADDENDUM 2 PETERSON BOILER CONTROL REPLACEMENT PAGE 2

3 SECTION PART 1 - GENERAL 1.1 SUMMARY A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 General Requirements Specification Sections, apply to this Section. B. This section specifies the requirements for the Direct Digital Control System (DDC) to be installed in conjunction with this project. C. The DDC contractor shall furnish and install a fully integrated building automation system, incorporating direct digital control (DDC) and electric control for energy management, equipment monitoring and control, and subsystems as specified herein. D. The DDC contractor shall be responsible for all DDC and temperature control wiring for a complete and operable system. All wiring shall be done in accordance with Division 26 of this specification and all local and national codes. E. All graphics, programming and host databases shall be updated to reflect any changes or additions made under this contract. All products, programming and graphics shall follow the established facility automation standards of the Kodiak Island Borough School District. F. The DDC system shall be capable of remote monitoring via the owner's existing Ethernet network. G. The DDC system shall be connected to the existing Delta Control or Schneider Electric central DDC server located at the maintenance office at the Kodiak Middle School. The DDC software shall be updated to current version of DDC operating software and new graphics shall be provided for the entire Peterson Elementary school as part of this contract. All mechanical equipment at Peterson Elementary School included in the sequence of operation, Section shall be capable of remote control operation from the Maintenance office at the Kodiak Middle School. 1.2 RELATED SECTIONS A. Section Basic Mechanical Materials and Methods. B. Section Balancing and Testing. C. Section Sequence of Operation. D. Section Hydronic Piping. E. Section Hydronic Specialties. F. Division 26 Electrical Specifications. BOILER AND CONTROL REPLACEMENT Page 1

4 1.3 INSTALLATION SCHEDULING AND COORDINATION A. Remove all controls-related, wiring and pneumatic tubing and electrical conduit that is not reused as part of the new direct digital control and monitoring system. B. Patch any holes in existing ductwork at removed sensors that are not reused, with sheet metal patches of equal gauge or heavier. Seal airtight with adhesive and then screwed or pop riveted to the ductwork. 1.4 SUBMITTALS / O&M MANUALS A. All submittals will be bound in white D-ring binders with sufficient ring capacity available for future additions. An electronic version shall also be made available if requested. B. Progression from Submittal to O&M Manual can take place using the same binders as long as all applicable material is properly updated. C. Prior to beginning on-site installation, the DDC contractor will submit four (4) complete sets of documentation containing the following: 1. Sequence of Operations (Designer to provide electronic text version) 2. Riser Diagrams 3. Control Diagrams 4. Panel layout(s) 5. Valve Schedule 6. Point Summary Report 7. Product Data D. The O&M Manuals will consist of the following: 1. Sequence of Operations 2. Riser Diagrams 3. Control Diagrams 4. Panel layouts 5. Valve Schedule 6. Point Summary Report 7. Commented Program Code 8. Trend Logs 9. Product Data 1.5 SYSTEMS DEMONSTRATION A. The Contractor will completely check out, calibrate and test all connected hardware and software to insure that the system performs in accordance with the approved specifications and sequences of operation. B. Provide complete demonstration of system operation to the owners representative at the project substantial completion inspection. The Contactor will demonstrate to the Owner's satisfaction that all equipment and systems operate in accordance with the sequence of operation as outlined BOILER AND CONTROL REPLACEMENT Page 2

5 under Section Demonstration will include all equipment controlled by the Direct Digital Control System. C. Building management station demonstration will consist of: 1. Running sample point log and system configuration reports as requested. 2. Display and demonstrate each data entry to show site specific customizing capability. Demonstrate parameter changes. 3. Step through penetration tree, display all graphics, demonstrate dynamic update and direct access to graphics. 4. Execute system commands in graphic mode including operation of control system set points, schedules, valves, dampers and control relays. Commands shall be executed as necessary to demonstrate the system is controlling in accordance with the sequence of operations. 5. Demonstrate update, and alarm responsiveness. 6. Demonstrate digital system configuration graphics with interactive upload and download, and demonstrate specified diagnostics. 7. Demonstrate programming with point options of beep duration, beep rate, alarm archiving and color banding. 1.6 WARRANTY A. Under provisions of Division 01 General Requirements. B. All components, system software, parts and assemblies will be guaranteed against defects in materials and workmanship for one year from acceptance date. C. Labor to troubleshoot, repair, reprogram, or replace system components will be furnished by the Contractor at no charge to the owner during the warranty period. D. All corrective software modifications made during warranty service periods will be updated on all user documentation and on user and manufacturer archived software disks. 1.7 QUALITY ASSURANCE A. The direct digital control system provided shall be designed, furnished, installed, tested, certified and placed into service by a Control Contractor who is regularly engaged in the installation of direct digital control systems in Alaska. The Control Contractor shall maintain an office in Alaska with parts and maintenance personnel to ensure prompt response (24 hour maximum) to an emergency call during the warranty period. B. The Control Contractor shall be able to demonstrate that he has had experience designing and installing direct digital control systems of comparable type and size to that called for in these Specifications BOILER AND CONTROL REPLACEMENT Page 3

6 PART 2 PRODUCTS 2.1 ACCEPTABLE MANUFACTURERS A. Acceptable manufacturers are limited to the following: 1. Delta Controls. 2. Schneider Electric Controls. 2.2 COMMUNICATION A. All control products provided for this project shall comprise a BACnet internetwork. Communication involving control components (i.e., all types of controllers and Operator Workstations) shall conform to ANSI/ASHRAE Standard , BACnet. B. Each BACnet device shall operate on the BACnet Data Link/Physical layer protocol specified for that device as defined in this section. C. The Contractor shall provide all communication media, connectors, repeaters, bridges, hubs, switches, and routers necessary for the internetwork. D. All controllers shall have a communication port for connections with the Operator Workstations using the BACnet Data Link/ Physical layer protocol. E. A device on the internetwork shall be provided with a 56k-baud modem that will allow for remote Operator Workstation using the BACnet PTP Data Link/ Physical layer protocol. Remote Operator Workstation via this modem shall allow for communication with any and all controllers on this network as described in Paragraph F below. F. Communication services over the internetwork shall result in operator interface and value passing that is transparent to the internetwork architecture as follows: 1. Connection of an Operator Workstation device to any one controller on the internetwork will allow the operator to interface with all other controllers as if that interface were directly connected to the other controllers. Data, status information, reports, system software, custom programs, etc., for all controllers shall be available for viewing and editing from any one controller on the internetwork. 2. All database values (e.g., objects, software variables, custom program variables) of any one controller shall be readable by any other controller on the internetwork. This value passing shall be automatically performed by a controller when a reference to an object name not located in that controller is entered into the controller's database. An operator/installer shall not be required to set up any communication services to perform internetwork value passing. G. The time clocks in all controllers shall be automatically synchronized daily. An operator change to the time clock in any controller shall be automatically broadcast to all controllers on the network. BOILER AND CONTROL REPLACEMENT Page 4

7 H. The network shall have the following minimum capacity for future expansion: 1. Each Building Controller shall have routing capacity for 99 controllers. 2. The Building Controller network shall have capacity for 1000 Building Controllers. 3. The system shall have an overall capacity for 12,500 Building Controller, Advanced Application Controller, and Application Specific Controller input/output objects. 2.3 CONTROLLER SOFTWARE A. Furnish the following applications software for building and energy management. All software applications shall reside and operate in the system controllers. Editing of applications shall occur at the operator workstation B. System Security 1. User access shall be secured using individual security passwords and user names. 2. Passwords shall restrict the user to the objects, applications, and system functions as assigned by the system manager. 3. User Log On/Log Off attempts shall be recorded. C. Scheduling. Provide the capability to schedule each object or group of objects in the system. Each schedule shall consist of the following: 1. Weekly Schedule. Provide separate schedules for each day of the week. Each of these schedules should include the capability for start, stop and optimal start. Each schedule may consist of up to 10 events. When a group of objects are scheduled together, provide the capability to adjust the start and stop times for each member. 2. Holiday Schedules. Provide the capability for the operator to define up to 99 special or holiday schedules. These schedules may be placed on the scheduling calendar and will be repeated each year. The operator shall be able to define the length of each holiday period. D. Alarm Reporting. The operator shall be able to determine the action to be taken in the event of an alarm. Alarms shall be routed to the appropriate workstations based on time and other conditions. E. Remote Communication. The system shall have the ability to dial out in the event of an alarm using BACnet Point-To-Point at a minimum of 56K baud. Receivers shall be BACnet workstations. F. Maintenance Management. The system shall monitor equipment status and generate maintenance messages based upon user-designated run-time, starts, and/or calendar date limits. G. Sequencing. Provide application software to properly sequence the start and stop of chillers, boilers, and pumps to minimize energy usage in the facility. H. PID Control. A PID (proportional-integral-derivative) algorithm with direct or reverse action and anti-windup shall be supplied. The algorithm shall calculate a time-varying analog value that is used to position an output or stage a series of outputs. The controlled variable, setpoint, and PID gains shall be user-selectable. BOILER AND CONTROL REPLACEMENT Page 5

8 I. Staggered Start. This application shall prevent all controlled equipment from simultaneously restarting after a power outage. J. Energy Calculations. Provide software to allow instantaneous power (e.g., kw) or flow rates (e.g., L/s [GPM]) to be accumulated and converted to energy usage data. Provide an algorithm that calculates a sliding-window kw demand value. K. Anti-Short Cycling. All binary output objects shall be protected from short cycling. This feature shall allow minimum on-time and off-time to be selected. L. On/Off Control with Differential. Provide an algorithm that allows a binary output to be cycled based on a controlled variable and setpoint. The algorithm shall be direct-acting or reverseacting, and incorporate an adjustable differential. M. Run-time Totalization. Provide software to totalize run-times for all binary input objects. A high run-time alarm shall be assigned, if required, by the operator. 2.4 BUILDING CONTROLLERS A. General. Provide an adequate number of Building Controllers to achieve the performance specified in the Part 1 Article on System Performance. Each of these panels shall meet the following requirements. 1. The Energy Management and Control System shall be comprised of one or more independent, standalone, microprocessor-based Building Controllers to manage the global strategies described in the System Software section. 2. The Building Controller shall have sufficient memory to support its operating system, database, and programming requirements. 3. Data shall be shared between networked Building Controllers. 4. The operating system of the Building Controller shall manage the input and output communication signals to allow distributed controllers to share real and virtual object information, and allow central monitoring and alarms. 5. Controllers that perform scheduling shall have a real-time clock. 6. The Building Controller shall communicate with other BACnet objects on the internetwork using the Read (Execute and Initiate) and Write (Execute and Initiate) Property services as defined in Clauses 15.5 and 15.8, respectively, of ASHRAE Standard BACnet Functional Groups. The Building Controller shall support the following BACnet functional groups: Clock, Event Initiation, COV Event Response, Files, Device Communication and Time Master. B. Communication 1. Each Building Controller shall support BACnet over Ethernet and BACnet over IP. The Building Controller shall be connected to the BACnet network using the ISO (Ethernet) Data L/ Physical layer protocol. 2. Each Building Controller with a communications card shall perform BACnet routing if connected to a network of Custom Application and Application Specific Controllers. 3. The controller shall provide a service communication port using BACnet Data Link/ Physical layer protocol P-T-P for connection to a hand-held workstation/ and/or modem. BOILER AND CONTROL REPLACEMENT Page 6

9 4. The Building Controller secondary communication network shall support BACnet MS/TP. C. Environment. Controller hardware shall be suitable for the anticipated ambient conditions. 1. Controllers used outdoors and/or in wet ambient conditions shall be mounted within waterproof enclosures, and shall be rated for operation at 0 C to 40 C [32 F to 100 F] and 10 to 90% RH. 2. Controllers used in conditioned space shall be mounted in dust-proof enclosures, and shall be rated for operation at 0 C to 50 C [32 F to 120 F]. D. Building Controllers shall be fully peer to peer. E. Serviceability. Provide diagnostic LEDs for power, communication, and processor. All wiring connections shall be made to field- removable, modular terminal strips or to a termination card connected by a ribbon cable. F. Memory. The Building Controller shall have as a minimum standard SRAM of 256 KB, standard DRAM of 1MB and standard non-volatile 1 MB of flash memory in lieu of EPROM. Memory shall be user extendible through RAM chip sockets and SIMMs for future memory expansion. G. Immunity to power and noise. Controller shall be able to operate at 90% to 110% of nominal voltage rating and shall perform an orderly shutdown below 80% nominal voltage. The Building Controller shall maintain all database information including BIOS and programming information in the event of a power loss for at least 72 hours. Operation shall be protected against electrical noise of 5 to 120 Hz and from keyed radios up to 5 W at 1 m [3 ft]. H. Inputs/Outputs. 1. Inputs. Controller input/output board shall support dry contact, 0-5 VDC and 0-10 VDCvoltage, 4-20 ma- current and thermistor-resistive signal types on an individual basis for connecting any status or sensing device. Analog resolution shall be 10-bit A to D. 2. Ouputs. Controller input/output board shall support built in HOA modules configured with manual-auto-off override switch. Output supported shall be 0-10 VDC. All HOA s shall be supervised. 3. Diagnostics. Controller input/output board shall have red LEDs providing input status indication. 4. Building Controller shall have the capability to create, delete and support the following BACnet Objects: a. ANALOG INPUT, ANALOG OUTPUT AND ANALOG VALUE: These objects shall have the following writeable properties: Object Name; Object Value; Description; COV Increment; Out of Service and Units. In addition, these objects shall support the properties: Device type; Reliability; Min./Max. Values; Update Interval and Resolution. b. BINARY INPUT, BINARY OUTPUT AND BINARY VALUE: These objects shall have the following writeable properties: Object Name; Object Value; Desription; Polarity; Default Value; Min On/Off and Out of Service. In addition, these objects shall support the properties: Device Type; Reliability; Active/Inactive BOILER AND CONTROL REPLACEMENT Page 7

10 Texts; Update Interval; Resolution; Change-of-State Time; Count Times and Time Reset. c. CALENDAR: This object shall have the following writeable properties: Object Name; Object Value; Description; and Date List. d. DEVICE: This object shall have the following writeable properties: Object Name; Description; Location; and UTC Offset. e. EVENT ENROLMENT: This object shall have the following writeable properties: Object Name; Object Value; Description;Out-of-Service; Event & Notify Types; Paramenters; Property Ref; Enable; and Notification Class. f. FILE: This object shall have the following writeable properties: Object Name; Description; File Type; and File Access. g. LOOP (PID): This object shall have the following writeable properties: Object Name; Object Value; Description; Polarity; Output and Input Refs.; Input Value & Units; Setpoint Value; PID Values; Bias; Write Priority and COV Increment. In addition, this object shall support the properties: Reliablity; Update Interval; Proportional Constant & Units; Derviative Constant & Units. h. NOTIFICATION CLASS: This object shall have the following writeable properties: Object Name; Object Value; Description; Priority and Ack Requried. i. PROGRAM: This object shall have the following writeable properties: Object Name; Object Value and Description. In addition, this object shall support the property Reliablity. j. SCHEDULE: This object shall have the following writeable properties: Object Name; Object Value and Description; Effective period; Schedule; Exception; Controlled Properties and Write Properties. k. TREND LOG: This object shall have the following writeable properties: Object Name; Description; Log Enable; Start/stop Times; Log Device Object Property; Log Interval; Stop When Full; Buffer Size; and Record Count. 2.5 ADVANCED APPLICATION CONTROLLERS A. General. Provide an adequate number of Programmable Application Controllers to achieve the performance specified in the Part 1 Article on System Performance. Each of these panels shall meet the following requirements. 1. The Advanced Application Controller shall have sufficient memory to support its operating system, database, and programming requirements. 2. Advanced Application Controllers shall be fully peer to peer. 3. The operating system of the Controller shall manage the input and output communication signals to allow distributed controllers to share real and virtual object information, and allow central monitoring and alarms. 4. All equipment that requires scheduling shall be scheduled in that equipments controller. 5. Both firmware and controller database shall be loadable over the network. 6. Advanced Application Controllers shall support the following BACnet Interoperability Building Blocks (BIBBs): Data Sharing Alarm & Event Scheduling Trending Device & Network Mgmt. DS-RP-B AE-N-B SCHED-B DM-DDB-B DS-RPM-B AE-ACK-B DM-DOB-B DS-WP-B AE-ASUM-B DM-DCC-B BOILER AND CONTROL REPLACEMENT Page 8

11 DS-WPM-B DM-TS-B DM-UTC-B DM-RD-B B. Communication. 1. Each Advanced Application Controller shall reside on a BACnet network using the MS/TP or Ethernet Data Link/ Physical layer protocol. 2. The controller shall provide a service communication port using BACnet Data Link/ Physical layer protocol for connection to portable operators workstation and allow access to the entire network. C. Environment. Controller hardware shall be suitable for the anticipated ambient conditions. 1. Controllers used outdoors and/or in wet ambient conditions shall be mounted within waterproof enclosures, and shall be rated for operation at 0 C to 40 C [32 F to 100 F]. 2. Controllers used in conditioned space shall be mounted in dust-proof enclosures, and shall be rated for operation at 0 C to 50 C [32 F to 120 F]. D. Serviceability. Provide diagnostic LEDs for power, communication, and processor. All wiring connections shall be made to field-removable, modular terminal strips or to a termination card connected by a ribbon cable. E. Memory. The Advanced Application Controller shall be non-volatile FLASH memory. F. Immunity to power and noise. Controller shall be able to operate at 90% to 110% of nominal voltage rating and shall perform an orderly shutdown below 80% nominal voltage. Operation shall be protected against electrical noise of 5 to120 Hz and from keyed radios up to 5 W at 1 m 3 ft. 2.6 APPLICATION SPECIFIC CONTROLLERS A. General. Application Specific Controllers (ASCs) are microprocessor-based DDC controllers which through hardware or firmware design are able to control a wide variety of equipment. They are fully user-programmable, and are not restricted to any one type of equipment. 1. Each ASC shall be capable of standalone operation and shall continue to provide control functions without being connected to the network 2. Each ASC will contain sufficient I/O capacity to control the target system. 3. Both firmware and controller database shall be loadable over the network 4. Application Specific Controllers shall be fully peer to peer 5. ASC s shall come with an integrated housing to allow for easy mounting and protection of the circuit board. Only wiring terminals shall be exposed. 6. Application Specific Controllers shall support the following BACnet Interoperability Building Blocks (BIBBs): BOILER AND CONTROL REPLACEMENT Page 9

12 Data Sharing Alarm & Event Scheduling Trending Device & Network Mgmt. DS-RP-B DM-DDB-B DS-WP-B DM-DOB-B DM-DCC-B B. Communication 1. The controller shall reside on a BACnet network using the MS/TP Data Link/ Physical layer protocol. 2. Each controller shall have a BACnet Data Link/ Physical layer compatible connection for a laptop computer or a portable operator's tool. This connection shall be extended to a space temperature sensor port where shown and allow access to the entire network. 3. Each controller shall have a secondary sub network for communicating sensors or I/O expansion modules C. Environment. The hardware shall be suitable for the anticipated ambient conditions. 1. Controllers used outdoors and/or in wet ambient conditions shall be mounted within waterproof enclosures, and shall be rated for operation at -40 C to 65 C [-40 F to 150 F] and/or suitably installed in a heated or fan cooled enclosure 2. Controllers used in conditioned space shall be mounted in dust-proof enclosures, and shall be rated for operation at 0 C to 50 C [32 F to 120 F]. D. Serviceability. Provide diagnostic LEDs for power, communication, and processor. All wiring connections shall be made to field-removable, modular terminal strips. E. Memory. The Application Specific Controller shall use non-volatile memory and maintain all BIOS and programming information in the event of a power loss. F. Immunity to power and noise. ASC shall be able to operate at 90% to 110% of nominal voltage rating and shall perform an orderly shutdown below 80%. Operation shall be protected against electrical noise of Hz and from keyed radios up to 5 W at 1 m 3 ft. G. Transformer. Power supply for the ASC must be rated at minimum of 125% of ASC power consumption, and shall be fused or current limiting type. H. Input/Output. ASC shall support as a minimum, directly connected, a combination of analog outputs and binary outputs and universal software selectable analog or digital inputs. ASC inputs shall support 0-5 VDC-voltage, 4-20mA-current, thermistor-resistance and dry contacts. ASC outputs shall support 0-10 VDC-voltage, digital triac rated at 0.5 amps at 24 VAC I. System Object Capacity. The system size shall be expandable to at least twice the number of input/output objects required for this project. Additional controllers (along with associated devices and wiring) shall be all that is necessary to achieve this capacity requirement. The Operator Workstations installed for this project shall not require any hardware additions or software revisions in order to expand the system. BOILER AND CONTROL REPLACEMENT Page 10

13 2.7 LOCAL USER INTERFACE AND DYNAMIC GRAPHIC DISPLAYS A. Provide LCD touchscreen interface for Direct Digital Control System. Screen size shall be a minimum of fifteen inches. Interface shall display real time graphics displaying operating conditions for equipment listed in sequence of operation. Interface shall display all set points and equipment schedule changes. Interface shall be integral to operator workstation. B. Mount interface on main building controller in the boiler room, or in surface mounted box listed for use in boiler rooms. Create color graphic floor plan displays for the building and system schematics for each piece of mechanical equipment added as part of this project, including air handling units, boiler systems and room level terminal units. C. Dynamic graphic Displays 1. The operator interface shall allow users to access the various system schematics and floor plans via a graphical penetration scheme, menu selection or text-based commands. Graphics software shall permit the importing of AutoCAD or Bitmap drawings for use in the system. 2. Dynamic temperature values, pressure values, flow values and status indication shall be shown in their actual respective locations and shall automatically update to represent current conditions without operator intervention and without pre-defined screen refresh rates. 3. Sizable analog bars shall be available for monitor and control of analog values; high and low alarm limit settings shall be displayed on the analog scale. The user shall be able to "click and drag" the pointer to change the setpoint. 4. Provide the user the ability to display blocks of point data by defined point groups; alarm conditions shall be displayed by flashing point blocks. 5. Equipment state can be changed by clicking on the point block or graphic symbol and selecting the new state (on/off) or setpoint. 6. Colors shall be used to indicate status and change as the status of the equipment changes. The state colors shall be user definable. 7. The graphic displays shall all allow for operator control and monitoring at the local user interface and the central server at the Kodiak Middle School Maintenance office. 2.8 AUTOMATIC CONTROL VALVES A. All two position automatic control valves shall be line sized and be provided with actuators of sufficient power for the duty intended. Valve body and actuator selection shall be sufficient to handle system pressure and shall close against the differential pressures expected to be encountered on the project. B. Valves shall be constructed with cast iron, brass or stainless bodies. Body rating shall be 400- PSI at 150 degrees F. C. Heating valves shall fail normally open, domestic hot water generator control valves shall be normally closed. BOILER AND CONTROL REPLACEMENT Page 11

14 2.9 SENSORS A. All electronic temperature sensors shall be standard resistance type for all temperature ranges. All electronic temperature sensors shall be factory calibrated and of tamper proof construction requiring no field calibration. Temperature sensor accuracy shall be a minimum of +/- 1%. To insure system accuracy, a common sensor shall be used for each control loop to provide control, indication (local and central), alarm indication (local and central) and where multi-control functions, such as discharge temperature control with compensation and positive high and low limits are used. B. Outside air sensing shall be accomplished using a sensing element and transmitter shielded from the effects of sunlight. C. Sensors shall be furnished in scale ranges compatible with system operating range. D. Where sensors are used for sensing liquid temperatures, they shall be furnished with separable wells or appropriate material THERMOSTATS A. Electronic Room Temperature Sensors: Shall be thermistor type with 55 degree F to 95 degree F range. Optional features include: LED display, slider bar and night setback button. Covers shall be robust, of institutional quality, suitably finished. B. Line-voltage Thermostats: Shall have bi-metal switches with a rating of at least 1.2 times the load they are handling. Covers will be sensing only. C. Provide locking covers where indicate on mechanical drawings PRESSURE SENSORS A. Gauge pressure transducer with range 150 percent of operating pressure and over pressure tolerance of 200 percent of range pressure, plus or minus 2 percent accuracy over full range, and maximum drift of 1 percent full range per year. B. Watertight enclosure. C. Provide with brass or stainless steel snubber and pigtail on steam applications. D. Provide with ball valve isolation RELAYS AND SIGNAL TRANSMITTERS A. All necessary relays and signal boosters shall be furnished to make the system a full and operable system as required by the Sequence of Operations. BOILER AND CONTROL REPLACEMENT Page 12

15 2.13 AIR AND WATER FLOW PROOF DEVICES A. Provide current operated relays as standard proof devices. Pressure differential switches may be used as directed. Paddle type flow switches are not acceptable. B. Provide solid-state, adjustable, current operated relay. Provide a relay that changes switch contact state in response to an adjustable set point value of current in the monitored A/C circuit. C. Adjust the relay switch point so that the relay responds to motor operation under load as an ON state and so that the relay responds to an unloaded running motor as an OFF state. A motor with a broken belt is considered an unloaded motor. D. Provide status device for any fans, motors and pumps as reference in the Sequence of Operations EMERGENCY BOILER SHUT OFF A. Momentary contact pushbutton with 60 mm diameter red mushroom head, mounted on stainless steel 1-gang plate in recessed box. Mount a red engraved nameplate with white letters that reads "Boiler Emergency Stop" on faceplate or wall above button. Provide NO or NC contact blocks as required to perform the specified sequence of operation WIRING AND RACEWAYS A. Provide wiring and raceway complying with the National Electrical Code, Division 16, and State and Local Codes and Ordinances. B. Provide wiring and raceway complying with the National Electrical Code, and State and Local Codes and Ordinances. C. Raceways: 1. EMT, metal duct, IMC, surface metal raceways, or totally enclosed metal trough with flexible metal tubing unless otherwise noted. 2. Provide rigid steel conduit raceways when raceway is buried or embedded in concrete. 3. Provide 18 inches minimum to 36 inches maximum flexible metal conduit of galvanized steel construction for final connection to control devices. For connections to pipe mounted devices, and to devices in damp, wet, or exterior locations, or in mechanical rooms containing boilers or steam converters, provide oil-resistant liquid-tight flexible metal conduit. 4. Provide EMT connectors with rain tight compression fittings and insulated throats. 5. Wire mold is generally not allowed except as approved on a case-by-case basis with the owner's representative. D. Wiring: 1. Provide wire with copper stranded conductors. Provide color or number coded jackets. 2. Low voltage wiring from control components to input/output modules: 20 gauge minimum foil-shielded cable rated 100 VDC at 80 C. BOILER AND CONTROL REPLACEMENT Page 13

16 3. Provide plenum rated cable whenever wire is run without conduit. 4. Provide communications network wiring meeting the gauge, impedance, capacitance, resistance and shielding requirements specified by the manufacturer of the connected devices. 5. Identify wires and cables with permanent self-laminating machine print labeling system. Provide labels capable of receiving 8 characters of type written text, with minimum print on area of 1 inch by 1/2 inch, and protected by a clear sheath. Thomas & Betts E-Z Code or equal. 6. Support or bundle wire with self-locking, UL listed cable ties. Provide 40 lb. rated cable ties incorporating a stainless steel locking insert. Provide UL 94V-0 flammability rated, halar cable ties when installed without panel enclosure. Thomas & Betts Ty-Rap or equal. 7. Provide cable tie anchors designed for mechanical anchoring, allowing removal of cable tie without removal of anchor, capable of accepting at a minimum a number 8 screw. Adhesive cable tie anchors are allowed only on the interior surface of panel doors. Panduit TM series or equal FIRESTOPPING A. Capable of maintaining an effective barrier against flame, heat, and smoke. Metalines, Dow, 3M, or equal. B. Provide installations classified in Underwriter's Laboratories (UL) Building Materials Directory or listed in the Warnock Hersey International Directory. C. Paintable where exposed to view. D. Waterproof in plumbing chases. E. Provide the product of more than one manufacturer if required to provide listed installations throughout ACCEPTABLE MANUFACTURERS - VARIABLE FREQUENCY DRIVES A. ABB. B. Square-D (Telemecanique brand Altivar Panel) C. Substitutions: Under provisions of Section VARIABLE FREQUENCY DRIVES (VFDS) A. Description: 1. This specification covers a complete Variable Frequency Drive (VFD) consisting of a pulse width modulated (PWM) inverter designed for use on a standard NEMA Design B induction motor or better. (Addendum No. 2) BOILER AND CONTROL REPLACEMENT Page 14

17 2. The drive manufacturer shall supply the drive and all necessary controls as herein specified. The manufacturer shall have been engaged in the production of this type of equipment for a minimum of fifteen years. B. Quality Assurance: 1. Referenced Standards: a. Institute of Electrical and Electronic Engineers (IEEE) Standard , IEEE Guide for Harmonic Content and Control. b. Underwriters laboratories UL508C. c. National Electrical Manufacturer s Association (NEMA) ICS 7.0, AC Adjustable Speed Drives. C. Testing: All printed circuit boards shall be completely tested and burned-in before being assembled into the completed VFD. The VFD shall then be subjected to a computerized systems test (cold), burn-in, and computerized systems test (hot). The burnat full rated load. All testing and manufacturing procedures shall be ISO 9001 certified. D. Qualifications: VFDs and options shall be UL listed as a complete assembly. VFDs and options shall be cul listed as a complete assembly. VFDs and options shall be CE labeled as a component. VFDs shall be listed for use at remote locations from devices. E. Warranty: Warranty shall be 24 months from the date of shipment (with certified start-up). F. Products: The Variable Frequency Drives (VFDs) shall be solid state, with a Pulse Width Modulated (PWM) output. The VFD package as specified herein shall be enclosed in a NEMA 1 enclosure, completely assembled and tested by the manufacturer. The VFD shall employ a full wave rectifier (to prevent input line notching), Capacitors, and Insulated Gate Bipolar Transistors (IGBT s) as the output-switching device. The drive efficiency shall be 97% or better at full speed and full load. Fundamental power factor shall be no less than 0.98 at all speeds and loads. G. Harmonic Distortion Control: 1. The VFD shall limit harmonic distortion reflected onto the utility system to a voltage and current level as defined by IEEE 519 for general systems applications. This shall be accomplished by using drive components specifically designed to reduce harmonic distortion. AC line reactors are required where their use will assist in reducing harmonic distortion. 2. Any harmonic calculations shall be done based on kva capacity X/R ratio and the impedance of the utility transformer feeding the installation and the total system load. The calculations shall be made with the point of the common coupling being the utility feeder. 3. The system containing the VFD shall comply with the 5% level of total harmonic distortion on line voltage and the line current limits as defined in IEEE H. Specifications: 1. Input voltage , , VAC +/- 10%, 3 phase, Hz. 2. Undervoltage rated input -35%, Overvoltage rated input +30%. BOILER AND CONTROL REPLACEMENT Page 15

18 3. Interrupt rating 65 kaic, suitable for use on a circuit capable of delivering not more than 10,000 RMS symmetrical amps, 480 V maximum. 4. Output Frequency 0 to 150 Hz. Operation above 60 Hz shall require programming changes to prevent inadvertent high-speed operation % humidity, non-condensing. 6. Provide line side filter. 7. Enclosure shall be rated NEMA 1 or as specifically mentioned elsewhere. 8. All VFDs shall have the same customer interface, including digital display, and keypad, regardless of horsepower rating. The keypad is to be used for local control, for setting all parameters, and for stepping through the displays and menus. The keypad shall be removable, capable of remote mounting, and shall have it s own non-volatile memory. An optional keypad shall allow for uploading and downloading of parameter settings as an aid for start-up of multiple VFDs. 9. VFD shall be rated for use in remote located setups. I. Input/Output Features: 1. Four (4) programmable critical frequency lockout ranges to prevent the VFD from operating the load continuously at an unstable speed. 2. A custom PID preset for HVAC & fluid systems, allow a pressure or flow signal to be connected to the VFD, using the microprocessor in the VFD for the closed loop control. The VFD shall have 250 ma of 24 VDC auxiliary power and be capable of loop powering a transmitter supplied by others. The auxiliary power supply shall have overload and over current protection. The PID setpoint shall be adjustable from the VFD keypad, analog inputs, digital inputs, or over the communications bus. 3. Two (2) programmable analog inputs shall accept a current, voltage, or Ni 1000 sensor level input signal for speed reference, or for reference and actual (feedback) signals for PID controller. 4. Six (6) programmable digital inputs for maximum flexibility in interfacing with external devices. One digital input is to be utilized as a customer safety connection point for fire, freeze, and smoke interlocks (Enable). Upon customer reset (reclosure of interlock) drive is to resume normal operation. These inputs can also be used to activate the setpoints of individual control loops. 5. Two (2) programmable analog output proportional to Frequency, Motor Speed, Output Voltage, Output Current, Motor Torque, Motor Power (kw), DC Bus voltage, Active Reference, and other data. 6. Two (2) programmable digital relay outputs. The relays shall be rated for maximum switching current 8 amps at 24 VDC and 0.4 A at 250 VAC. 7. The VFD shall Ramp or Coast to a stop, as selected by the user. J. Operator Display: The following operating information displays shall be standard using an optional VFD digital display. All applicable operating values shall be capable of being displayed in engineering (user) units. All parameters viewed from the list below shall be capable of being displayed at all times. The display shall be in complete English words (alphanumeric codes are not acceptable). 1. Output frequency. 2. Motor speed (RPM, %, or engineering units). 3. Motor current. 4. Calculated motor torque. BOILER AND CONTROL REPLACEMENT Page 16

19 5. Calculated motor power (kw). 6. DC bus voltage. 7. Output voltage. 8. Heatsink temperature (0 F). 9. Analog input values. 10. Analog output value. 11. Keypad reference values. 12. Elapsed time meter (resetable). 13. kwh meter (resetable). 14. mwh meter. 15. Digital input status. 16. Digital output status. K. Safeties: The VFD shall have the following protection circuits. In the case of a protective trip, the drive shall stop and announce the fault condition in complete words (alphanumeric codes are not acceptable): 1. Overcurrent trip 350% instantaneous (170% RMS) of the VFD's variable torque current rating. 2. Overvoltage trip 130% of the VFD's rated voltage. 3. Undervoltage trip 65% of the VFD's rated voltage. 4. Overtemperature +90 C, Heatsink Temperature. 5. Ground Fault either running or at start. 6. Adaptable Electronic Motor Overload (I 2 t). The Electronic Motor Overload protection shall protect the motor based on speed, load curve, and external fan parameter. Circuits, which are not speed dependant, are unacceptable. The electronic motor overload protection shall be UL Listed for this function. L. Communications: 1. The VFD shall have an RS-485 port as standard. The standard protocol shall be selectable between Siemens Building Technologies, Inc. P1 (FLN) protocol, and Johnson Controls Inc. N2 Metasys protocol. There shall be an optional LON (LONMARK) interface and Modbus interface. 2. Serial communication capabilities shall include, but not be limited to, run-stop control; speed set adjustment, proportional/integral/derivative PID control (Set Point) adjustments, current limit, and accel/decel time adjustments. The drive shall have the capability of allowing the DDC to monitor feedback such as process variable feedback, output speed/frequency, current (in amps), % torque, power (kw), kilowatt hours (resettable), operating hours (resettable), relay outputs, digital inputs and diagnostic warning and fault information. Additionally, remote (LAN) VFD fault reset shall be possible. A minimum of 15 field parameters shall be capable of being monitored. 3. The VFD shall allow the DDC to control the drive s digital and analog outputs via the serial interface. The serial communications interface shall allow for DO (relay) control and AO (analog) control without being tied to a VFD function. In addition, all drive digital and analog inputs shall be capable of being monitored by the DDC system. M. Required Features: Features to be furnished and mounted by the drive manufacturer. All optional features shall be UL Listed by the drive manufacturer as a complete assembly. All VFD s shall be provided with the following option features: BOILER AND CONTROL REPLACEMENT Page 17

20 1. Bypass Controller - Manual or automatic (selectable) transfer to line power via contactors. When in the "Drive" mode, the bypass contactor is open and the drive output contactor is closed. In the "Bypass" position, the drive output contactor is open, and the bypass contactor is closed via Start/stop command. Start/stop via customer supplied maintained contact shall be Dry type 115V compatible and shall function in both the "Drive" and "Bypass" modes. The design shall include single-phase protection in both the VFD and bypass modes. 2. Customer Interlock Terminal Strip - provide a separate terminal strip for connection of freeze, fire, smoke contacts, and external start command. All external safety interlocks shall remain fully functional whether the system is in Hand, Auto, Drive or Bypass modes. 3. Automatic / manual bypass operation shall be selectable in the standard bypass design. 4. Door / cover interlocked disconnect switch will disconnect all input power from the drive, bypass and all internally mounted options. The disconnect handle shall be through the door, and be lockable in the "Off" position. N. Installation: 1. Installation shall be the responsibility of the Division 16 electrical contractor. The contractor shall install the drive in accordance with the recommendations of the VFD manufacturer as outlined in the installation manual. 2. Power wiring shall be the responsibility of the Division 16 electrical contractor. The contractor shall complete all wiring in accordance with the recommendations of the VFD manufacturer as outlined in the installation manual. O. Start-up: Certified factory start-up shall be provided for each drive by a factory authorized service center. A certified start-up form shall be filled out for each drive with a copy provided to the owner, and a copy kept on file at the manufacturer. P. Product Support: Factory trained application engineering and service personnel that are thoroughly familiar with the drive products offered shall be locally available at both the specifying and installation locations. PART 3 EXECUTION 3.1 GENERAL A. Do not install control devices in locations where they are subject to damage or malfunction due to normally encountered ambient temperatures. B. Mount damper operators and other control devices secured to insulated ductwork on brackets such that the device is external of the insulation. C. Modify existing control system devices as indicated. Extend and modify the existing wiring and control system power source to accommodate indicated direct digital control system devices. BOILER AND CONTROL REPLACEMENT Page 18

21 D. Before beginning installation of new system components, test the existing system devices that are being reused in modified control systems for proper operation and report any devices in need of replacement or repair to the Project Manager. At the option of the Project Manager, he will issue a contract amendment to replace or repair the defective devices or he will have Owner maintenance personnel replace or repair the defective devices. The Contractor shall be responsible for providing new devices to replace existing devices that are not brought to the Project Manager s attention before beginning installation of new system components. E. Work must comply with industry standards except when more restrictive tolerances or specified requirements indicate more rigid standards. Perform work by persons qualified to produce workmanship of specified quality. If required by the State of Alaska workers shall be licensed. If requested provide copy of license. F. Schematics and diagrams, when indicated on the Drawings, show approximate functional relationships and sequences only. All required devices are not shown. Contractor is responsible for providing all components required for a complete functioning system selected to meet the specific functional requirements of each application. G. Unless indicated otherwise, connect the primary sensing input and the associated output for each control loop to the same controller. A secondary or resetting input may be attached to any controller and communicated over the network. H. Tune control loops to respond quickly to control fluctuations without hunting. 3.2 IDENTIFICATION A. All controllers, switches, relays, thermostats and actuators shall be permanently tagged for identification. B. The tagging scheme shall be reflected on the control drawings. C. Submit proposed identification method, specifically listing each device and the identification tag to be applied. 3.3 SENSORS AND SWITCHES A. Pump flow or fan flow, etc, shall be sensed using current switch unless indicated otherwise. Calibrate current switch to distinguish between loaded or unloaded motor condition due to belt or coupler breakage. B. Mount room sensors and fan control switches in offices 48 inches above finished floor, with any operable portion no higher than 48 inches, unless otherwise indicated. Where adjacent to light switches mount at same height as switches to provide a clean horizontally aligned installation unless doing so requires the operable portion to be above 48 inches. For sensors with tamper proof guards, sensors may be mounted between 48 inches and 60 inches above finished floors. C. Differential pressure transducers shall be used to sense differential pressure unless indicated otherwise. Unless indicated otherwise mount differential pressure transducers in panel adjacent BOILER AND CONTROL REPLACEMENT Page 19

22 to associated direct digital controller. At each differential pressure transducer provide with a differential pressure gauge piped in parallel with the transducer, mounted on panel face. D. Connect low temperature limit switches directly to the controlled equipment's motor starter control coil or, for equipment with no motor starter, to contacts of a relay in the equipment's power circuit. E. Fill immersion fluid temperature sensor wells with heat conducting compound. At 1-1/2 inches and smaller piping install wells in pipe tees one size larger than line size. F. Provide sensors and thermostats installed on exterior surfaces with insulated bases such that actual room temperature not wall surface temperature is sensed. G. Provide cast aluminum ventilating, nonbreakable shields and mounting brackets for sensors which are indicated to have protective covers. H. Provide averaging sensors in air handling unit casings or in areas where stratification is likely to occur. Provide averaging element of sufficient length to accurately indicate the average duct temperature. I. Protect averaging or capillary tubes where they penetrate duct with rubber grommet and seal with clear silicon. Support averaging or capillary tubes with copper capillary clips which maintain a minimum tubing bend radius of 1 inch. 3.4 CONTROL POWER SUPPLY A. Provide uninterruptible power supply (UPS) on power supply to all control panels and control transformers. B. Provide electric power to control devices from control system power circuit or from device or equipment being controlled. C. Carry a dedicated ground wire to controllers from associated breaker panel. Do not use the conduit system for grounding purposes. 3.5 WIRING A. Install, connect and wire the items included under this Section. This work includes providing required conduit, wire, fittings, and related wiring accessories. All wiring in exposed or inaccessible areas shall be installed in EMT conduit. Plenum-rated cable may be used in concealed, accessible areas only, such as plenums above suspended ceilings or raised floors. B. Provide wiring between thermostats and unit heater motors, and all control and alarm wiring. C. Provide conduit and wiring between the DDC panels and the temperature, humidity, or pressure sensing elements, including low voltage control wiring in conduit or plenum-rated cable. D. Provide conduit and control wiring for devices specified in this Section. BOILER AND CONTROL REPLACEMENT Page 20

23 E. Provide conduit and signal wiring between motor starters in motor control centers and high and/or low temperature relay contacts and remote relays in DDC panels located in the vicinity of motor control centers. F. Provide conduit and wiring between the PC workstation, electrical panels, metering instrumentation, indicating devices, miscellaneous alarm points, remotely operated contactors, and DDC panels, as shown on the drawings or as specified. G. Provide electrical wall boxes and conduit sleeves for all wall-mounted devices. Mount thermostats at 48 inches AFF unless otherwise noted. H. Permanently label electrical or electronic wiring at each end indicating location and the device at opposite end. At the direct digital controller end use either the I/O address, if it describes the connected device, or the unique control device tag used on the control schematics. At the device end indicate both the terminal number and the controller connected at the other end. For color coded multi-conductor cable, label cable sheath not individual conductors. I. Install wiring in a neat and orderly manner generally running along building lines. J. Support low voltage wiring run without conduit at a maximum of 4 feet between anchors. K. Seal conduit penetrations at floor and wall penetrations with firestopping installed as indicated. Note that this applies to all floor and wall penetrations, not just fire barrier penetrations. At all mechanical rooms or other rooms containing floor drains, except those with slab on grade floors, make penetration watertight and extend sleeve 3 inches above the floor. L. Wire all electrical controls and switches furnished under this Section of the Specifications. M. Conceal wiring in finished areas. Unless otherwise noted, install wiring inside conduit or fully enclosed metallic raceway. N. Low voltage wiring installed in concealed accessible locations may be run without conduit. Sleeve wiring at wall penetrations. O. Metal raceways crossing expansion joints make provision for 3 way movement. For conduits 1 & 1/2 inch and larger use O-Z type DX fittings, or equal. P. At raceway penetrations of the vapor barrier provide a double splice patch (one on each side of vapor barrier) by cutting a square piece of vapor barrier 12 inches larger on all sides than the pipe. Cut a round hole in the center of the square splice patch, smaller than the pipe, to form a stretched fit. Force the pipe through the splice patch and tape all sides to the vapor barrier and seal the vapor barrier to the pipe at the penetration with an adhesive compatible with the vapor barrier material. Q. Securely seal at the warm end, raceways running from a warm area to a cold area. Seal with a silicone not harmful to wire insulation. Ductseal or equal. R. Install all wiring in accordance with National Electrical Code, and State and Local Codes and Ordinances and Division 26 requirements. BOILER AND CONTROL REPLACEMENT Page 21

24 3.6 WARRANTY A. Upon completion of the project, as defined in the Contract Conditions, a warranty period of one (1) year shall commence. The warranty shall consist of a commitment by the DDC contractor to provide, at no cost to the Owner, parts and labor as required to repair or replace such parts of the control system that prove inoperative due to defective materials or installation practices. The warranty expressly excludes routine service such as instrument calibration. 3.7 TREND LOGS A. DDC contractor shall prepare trend logs for all points required to show system calibration and stability. B. These logs shall document building operation after the installation, balancing and calibration is completed and after the control system is fully operational. Setpoints, valve positions, etc. shall be adjusted to artificially induce the sequences to occur. 3.8 SUBSTANTIAL COMPLETION A. Prior to the substantial inspection, review and test entire installation for conformance with contract documents. Test shall include thorough field check of sequence of operations for each system and piece of equipment including simulation of all possible modes of operation. With the call for inspection, verify in writing that this system review and test has been performed and anything not conforming to contract documents shall be so noted. B. During the Substantial inspection Contractor personnel shall provide on-site assistance to inspection personnel required for a complete and thorough inspection. C. During the Substantial inspection Contractor personnel shall demonstrate that the control system performs in accordance with the contract documents. Provide material and personnel required to perform the demonstration. The demonstration shall include, but not necessarily be limited to, the following: 1. Review of the Trend Logs. 2. Complete and proper operation of control systems including simulations. 3. Access to all devices for required maintenance. 4. Review of associated graphics on the operator workstation. 3.9 TRAINING A. Four (4) hours of on-site instruction will be provided by the DDC contractor to familiarize operating personnel with the control system. Instructions will include: B. A brief description of the controls' sequence of operation. C. A discussion and explanation of all alarms, switches and gauges. D. A summary and explanation of steps to be taken in response to specific alarms or control malfunctions. BOILER AND CONTROL REPLACEMENT Page 22

25 E. Building walk-through to physically locate and examine all control devices and demonstrate control setpoint adjustment procedures. F. Instructions regarding adjustment procedures shall emphasize methods for continual building "fine-tuning" SEQUENCE OF OPERATION A. Reference: Section Sequence of Operation. END OF SECTION BOILER AND CONTROL REPLACEMENT Page 23

26 SECTION DOCUMENTS REQUIRED AT CLOSEOUT 1. The following forms must be fully executed and submitted to the Owner prior to final approval and final payment: Notice of Completion of Public Works Kodiak Island Borough Release from Contract Alaska Department of Revenue, Tax Clearance Request Form Alaska Department of Labor and Workforce Development Tax Clearance Request Form AIA G706A Release of Liens AIA G704 Substantial Completion Certificate END OF DOCUMENTS REQUIRED AT CLOSEOUT KODIAK ISLAND BOROUGH PETERSON BOILER AND CONTROL REPLACEMENT

27 Department of Labor and Workforce Development Labor Standards and Safety Division Wage and Hour Administration This form must be typed or printed in ink. Fill in all blanks or form will be returned for correction (see back). Please allow a minimum of 30 working days for processing. ****ENTER YOUR FAX # or Address:**** AND LIST YOUR MAILING ADDRESS BELOW Contractor, company or agency name, address, city, state & ZIP + 4 NOTICE OF COMPLETION OF PUBLIC WORKS Additional Filing Fee May Be Required Project Name: Contract awarding agency: Address: City: State: Zip: Awarding agency contact person: Phone # Location: Agency Contract #: DOLWD Project #: Project Completion Date: **(MM/DD/YY)** Final Contract Amount: $ IF YOU HAVE ALREADY PAID $5,000 IN FEES FOR THIS PROJECT, OR IF YOU PREVIOUSLY PAID ALL FEES DUE AND DID NOT HAVE ANY INCREASES IN CONTRACT AMOUNTS ENTER NONE AND, SKIP TO CERTIFICATION. OTHERWISE, DESCRIBE ADDITIONAL WORK. Description of additional contract/subcontract work performed Name of contractor who performed this work Amount of subcontract CERTIFICATION: I hereby certify that the above information is correct. Enclosed is the additional filing fee computed at 1% of the total amount of all new contracts on this project, including the contract price of new work performed by the primary contractor not previously reported on the Notice of Work, up to a maximum of $5,000. I also certify that all contractors who worked on this project complied with prevailing wage requirements as described in AS and AS Signature: Total value of subcontracts $ Additional value of work performed by primary contractor + $ Amount subject to fee $ Supplemental fee enclosed = ROUND FEES TO NEAREST DOLLAR For Dept. Use Only $ Multiply by.01 Title: Address: Fax #: Phone #: Date: Amount: Check Number: Cash Received By: Date: Credit Card Confirmation For Dept. Use Only T-36 Clearance Approved By Department of Labor and Workforce Development Visa MC Project Name DOLWD Project # Date: rev. 02/09

28 How to expedite the processing of your Notice of Completion form: ERRORS THAT CAUSE REJECTION FEES - No fee included or incorrect amount. If total contract amount is less than $25,000 a filing fee is not required. Contract amounts paid to owner/operators (sole proprietor/partnership) with no employees on the project are exempt from the fee. The maximum total filing fee for any one project is $5, PRIME CONTRACTOR - Additional value of work performed by primary contractor. SUBCONTRACTORS - The name of each NEW subcontractor and the amount of the contract OR the name of existing subcontractors and the amount of any NEW work not previously reported on the Notice of Work. SIGNATURE - Notice of Completion of Public Works must be signed by an authorized representative. FILING INSTRUCTIONS Additional fees are required for any increase in contract value, unless the maximum fee ($5,000) has been paid. If the contract amount decreased, you may request a refund on this form. If there is not enough space to list all required information on one form, use additional sheets. Please indicate at the top of each sheet Page 1 of 2, Page 2 of 2, etc. No other attachments will be accepted. For questions call the nearest WH office: Juneau: Anchorage: Fairbanks: (907) (907) (907) For more forms, refer to: Submit the notice and the appropriate filing fee payable to: Alaska Department of Labor and Workforce Development Wage and Hour Administration 3301 Eagle Street, Ste. 301 Anchorage, AK If a fee is not required or if the fee is paid with a credit card, you may fax the notice to (907) For security purposes, fax the credit card number and expiration date on a separate sheet. You may either fax OR mail the original form. Please do not do both. rev. 02/09

29 KODIAK ISLAND BOROUGH RELEASE FROM CONTRACT Whereas, by the terms of contract dated, entered into by the Kodiak Island Borough (hereinafter referred to as the Contracting Agency), and (hereinafter referred to as the Contractor), in the amount Dollars and Cents ($ ) including any/or all executed Change Orders for the construction of project at Kodiak, Alaska, IT IS PROVIDED THAT: Upon Completion of all work required hereunder, the amount due the Contractor under this Contract shall be paid upon the presentation of a properly executed and duly certified voucher therefore, after the Contractor shall have furnished the Contracting Officer with a release of all claims against the Contracting Agency arising under and by virtue of this Contract other than such claims, if any, as may be specifically excepted by the Contractor from the operation of the release in stated amounts to be set therein. NOW THEREFORE, in consideration of the payment by the Contracting Agency to the Contractor of the balance due under the Contract to wit the sum of Dollars and Cents ($ ), the Contractor hereby remises, releases, and forever discharges the Contracting Agency, its architects, engineers, agents, employees, and independent contractors of and from all manner of debts, dues, and sum or sums or money, accounts, claims, and demands whatsoever, in law and in equity, under or by virtue of said contract, and warrants good title to all material, suppliers, and equipment installed or incorporated in the project and all work delivered to the premises, together with all improvements and appurtenances constructed thereon, to the Contracting Agency free of any claims, liens or that neither it nor any person, firm, or corporation furnishing material or labor for any work covered by this Contract has any right to a lien upon the premises nor any improvement thereon, except:. The Contractor further certifies that all Federal, State and Local taxes incurred in the performance of this contract, including but not limited to withholding and employment security taxes, have been paid. IN WITNESS THEREOF, the hand and seal of the Contractor have been hereunto set this day of, WITNESS: (Signature of Witness) (Name of Witness) BY: (Signature of Contractor) (Name of Contractor)

30 Alaska Department of Revenue TAX CLEARANCE REQUEST FORM Construction Contractors Alaska Administrative Manual Section requires that disbursement for final payment on a construction contract be accompanied by a memorandum from Department of Revenue advising the agency making the payment that all taxes haves been paid. A signed release by the contractor is required by Department of Revenue to conform with laws pertaining to disclosure of tax returns and reports under AS Applicant s Name: EIN/SSN: Mailing Address: City/State/Zip Code: I hereby authorize the Alaska Department of Revenue to release information stating whether or not the above named applicant is current on all taxes, penalties and interest due and is in good standing with the Alaska Department of Revenue. I authorize the Department of Revenue to release this information to:, (Name of Department or Agency), (Agency fax or address) Signed: Printed Name: Title*: *If tax clearance is being requested on behalf of a corporation/llc/partnership, must be signed by an officer/member/partner. Send completed form by facsimile to the Department of Revenue at (907) DEPARTMENT USE ONLY The above applicant is current on all taxes, penalties and interest due and is in good standing with the Alaska Department of Revenue. The above applicant is not current on all taxes, penalties and interest due and is not in good standing with the Alaska Department of Revenue. Department of Revenue Representative Date TaxClearanceRequestForm (Rev 5/05)

31 Date of Request: Tax Clearance Request Form for Contractors Department of Labor and Workforce Development Employment Security Division Employment Security Tax 1111 W. 8th St. Rm 205 P.O. Box Juneau, AK Relay Alaska (in state): or Relay Alaska (out of state): Toll free: Phone: Fax: Business name of the contractor a Tax Clearance is being requested for: Business Address: Business Contact Phone No.: Federal Identification Number: Alaska Employer Account Number: Specific time period a tax clearance is being requested for ( i.e. beginning and ending date of a subcontract agreement): Subcontract Project Name: Name and address of the person this Tax Clearance is to be returned to: Comments or additional information: For Agency Use Only Tax Clearance is granted Tax Clearance is not granted (please have employer contact the department) No account on file, liability unknown (please have employer contact the department) Employer has stated no employees, Tax Clearance not required. Agency Representative Signature: Date: Agency Representative Title: We are an equal opportunity employer/program. Auxiliary aids and services are available upon request to individuals with disabilities. Rev. 12/24/2012