Reference made to the Project Manual and Drawings shall be used as a guide only. Bidders shall determine the work affected by Addendum items.

Transcription

1 November 14, 2014 ADDENDUM No. 5 Seward Montessori School Addition and Remodeling th Avenue South Minneapolis, MN LSE Project No This Addendum forms a part of the Contract Documents and modifies the original Bid Documents dated October 23, Acknowledge receipt of this Addendum in the space provided on the Bid Form. Reference made to the Project Manual and Drawings shall be used as a guide only. Bidders shall determine the work affected by Addendum items. CHANGES TO THE PROJECT MANUAL VOLUME I 1. None CHANGES TO THE PROJECT MANUAL VOLUME II 2. Section Fuel-Fired, Domestic Water Heaters a. Article 2.01, sub-paragraph A.1: Add the following as acceptable manufacturers: PVI, Lochinvar, Rheem, and State. 3. Section Panelboards b. Article 2.03: Revise sub-paragraph D to read: i. D. Doors: Concealed hinges; secured with flush latch with tumbler lock; keyed alike. Covers are in door construction with full piano hinge so door does not have to be removed to access inside of panel. 4. Section Wireless Clock Systems c. The clock system is not wireless but an extension of the existing system. Replace entire Section with the attached Section Provide 120 volts to the clocks, locations are shown on plan sheets ELLV1111, ELLV1122, ELLV Section Video Camera Surveillance System a. Article 1.02: Revise sub-paragraph 6 to read: NEW CAMERA NETWORK SERVERS ARE BY OWNER. b. Article 2.03: Revise sub-paragraph B to read: i. B. ELECTRIC LOCK 1. Manufacturer: Von Duprin 2. Model Number: Electronic Latch Retraction LSE No L:\2014\ MPS Seward\ADMIN\Common\Bidding 11/14/2014

2 Seward Montessori School Addendum 3 Page 2 of 2 Addition and Remodeling 3. Quantity: To be determined by Door Schedule c. Article 2.03: Revise sub-paragraph C to sub-paragraphs C. and D. to read: ii. C. REQUEST TO EXIT 1. Manufacturer: T-Rex 2. Model number: LT 3. Quantity: To be determined by Door Schedule iii. D. MOTION SENSOR DOOR CONTACT 1. Manufacturer: GE 2. Model Number: 1076C-M, Recessed Door Contact ¾ Magnetic Contact Brown Long gap SPDT 3. Quantity: To be determined by Door Schedule d. Article 2.03: Re-label existing sub-paragraphs D, E, F, G, H, and I respectively. CHANGES TO THE DRAWINGS VOLUME 1 of 2 1. None CHANGES TO THE DRAWINGS VOLUME 2 of 2 2. Sheet ME9501, Pump Schedule a. Refer to pumps P-5 and P-6. Provide size 4x4x7 at 3500 rpm in lieu of 4x4x11 at 1800 rpm. 3. Sheet ME9501, Pump Schedule a. Add the following note to pumps P-4, 5, 6, 7, 8; Provide SiC/SiC seals in lieu of the specified seal. 4. Sheet ME9501, a. Delete the Air Separator Schedule. 5. Sheet ME9501, Fin Tube Radiation schedule a. Delete fin tube radiation type FTR Sheet ME9502, Gas Water Heater Schedule a. Provide a PVI model 50 L 130A-GCML water heater in lieu of the AO Smith model BTH 500. The AO Smith model BTH 500 is an acceptable alternate water heater. The base design is the PVI. Lochinvar, Rheem, and State are also acceptable water heater manufactures. 7. Sheet MEHV 1115 a. Connect the side stream filter on the system side of the isolation valves for pump P-6. Refer to Detail 10/ME9001 for additional information. Locate the side stream filter on the east wall of the boiler room. Route pipes at least 8 AFF when transitioning from the pump to the filter location. b. Drawing 1/MEHV1115: Add the following general note: GAS PIPING SHALL BE SCHEDULE 40 BLACK STEEL PIPE ASTM A 53 TYPE E OR S WITH WELDED JOINTS. VALVES IN THE NATURAL GAS SYSTEM SHALL BE 2 OR 3 PIECE FULL PORT BALL VALVES. VALVES SHALL BE RATED FOR USE IN NATURAL GAS SYSTEMS. PROVIDE A VENT FOR ANY GAS REGULATOR. ROUTE VENT TO OUTSIDE OF THE BUILDING AND TERMINATE WITH GAS VENT CAP. PRIME AND PAINT GAS PIPING BLUE TO MATCH EXISTING GAS PIPE. END OF ADDENDUM 5 LSE No L:\2014\ MPS Seward\ADMIN\Common\Bidding 11/14/2014

3 KARGES-FAULCONBRIDGE, INC. KFI: SEWARD MONTESSORI SCHOOL ADDITION & REMODELING SECTION PART 1 - GENERAL 1.01 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section SUMMARY A. Section Includes: 1. Add to existing Simplex 6400 master clock control unit. 2. Secondary indicating clocks. 3. Clock circuit power boosters. 4. Interface with public-address/intercom system. 5. System wire and cable DEFINITIONS A. NIST: The National Institute of Science and Technology. B. PC: Personal computer. C. UTC: Universal time coordinated. The precisely measured time at zero degrees longitude; a worldwide standard for time synchronization ACTION SUBMITTALS A. Product Data: For each type of product indicated. Include construction details, material descriptions, dimensions of individual components and profiles, and finishes (including available colors) for each product indicated and describe features and operating sequences, both automatic and manual, for the following: 1. Master unit. 2. Indicating clocks. 3. Signal equipment. 4. Equipment enclosures and back boxes. 5. Accessory components. B. Shop Drawings: For clock systems. Include plans, elevations, sections, details, and attachments to other work. 1. Wiring Diagrams: For power, signal, and control wiring and correction circuits. a. Identify terminals and wiring color codes to facilitate installation, operation, and maintenance. b. Indicate recommended wire types and sizes, and circuiting arrangements for field-installed system wiring. Show protection from overcurrent, static discharge, and voltage surge. 2. Details of mounting, anchoring, and fastening devices for the following system components: a. Surface-mounted and semi recessed secondary indicating clocks. b. Master clock enclosures. c. Clock circuit power boosters. Addendum

4 SEWARD MONTESSORI SCHOOL KARGES-FAULCONBRIDGE, INC. ADDITION & REMODELING KFI: CLOSEOUT SUBMITTALS A. Operation and Maintenance Data: For clock and program control to include in emergency, operation, and maintenance manuals QUALITY ASSURANCE A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application. B. Comply with NFPA REGULATORY REQUIREMENTS A. Equipment and components furnished shall be of manufacturer s latest model. B. Transmitter and receiver shall comply with FCC rules and may not cause harmful interference. C. System shall be installed in compliance with local and state authorities having jurisdiction DELIVERY STORAGE AND HANDLING A. Deliver components to the site in the manufacturer's original packaging. Packaging shall contain manufacturer's name and address, product identification number, and other related information. B. Store equipment in finished building, unopened containers until ready for installation PROJECT SITE CONDITIONS A. Clocks shall not be installed until painting and other finish work in each room is complete. B. Coordinate installation of GPS receiver for access to the roof or exterior side wall so that the bracket and related fasteners are watertight. C. Provide each clock as specified on the drawings as part of the phased construction schedule. Coordinate with general/construction manager for scheduling SYSTEM STARTUP A. At completion of installation and prior to final acceptance, turn on the equipment; ensure equipment is operating properly, and clocks are functioning. The Engineer and Owner shall be notified 10 working days in advance to witness the system start-up. PART 2 - PRODUCTS 2.01 MASTER AND SECONDARY CLOCK SYSTEM A. Manufacturers: Subject to compliance with requirements, provide products by one of the following: 1. SimplexGrinnell LP (add to existing system). 2. Sapling ( if new system) 3. No substitutions Addendum

5 KARGES-FAULCONBRIDGE, INC. KFI: SEWARD MONTESSORI SCHOOL ADDITION & REMODELING B. System Functions and Features: 1. Supply power to remote indicating clocks. 2. Maintain correct synchronized time and transmit time-correction signals over dedicated system wiring from a master clock to any type of secondary indicating clocks, including the following: a. Analog Synchronous Clocks: Correct for minute- and second-hand synchronization at least once each hour and for hour-hand synchronization at least once each day. 3. Initiate and execute programs for scheduled automatic operation of remote devices. 4. Provide for manual control of programmed signal and equipment-switching circuits. 5. Communicate with remote PC for access to UTC time base and to permit programming from remote location. 6. Maintain system access security with a minimum of two levels of user-access control to restrict use of system controls to authorized personnel. Levels of access apply to both local access and access from a remote computer. Access to user programming and control functions is accomplished by entering a minimum three-digit code. Access levels include the following: a. Access to review existing programs only. b. Access to normal system operating controls. c. Access to all user-programming and control functions. 7. Regulate system timing functions using power-line frequency, backed up for power outages by an internal battery-powered, crystal-controlled oscillator. 8. Regulate system timing functions using power-line frequency, backed up for power outages by an internal battery-powered, crystal-controlled oscillator, and automated periodic reference to NIST or UTC time signals. Reference time signals shall be automatically accessed at programmable intervals. 9. Automatically check functioning of LEDs, switches, input keys, central processor, read-only memory, random access memory, and output circuits. A display on the control panel or a remote computer with the proper access code shall indicate failure by identifying faulty component or circuit and shall recommend corrective action. 10. Provide programming for automatic daylight savings time correction. 11. Provide for adjustments to master clock output signals. Duration of momentary signal shall be individually programmable for each signal and equipment-control output circuit from 1 to 99 seconds. Signals shall be programmable for either on or off switching to suit equipment-operation scheduling MASTER CLOCK A. Description: Microprocessor-based, software-controlled unit complying with Class A device requirements in 47 CFR Programming and control switches. 2. Informational Display: LED or backlit LCD type. a. Normally shows current time, date, and day of week display. b. Provides programming cues when system is being programmed. 3. Output Circuits for Power and Correction of Secondary Indicating Clocks: 4. Wired Synchronous Clock Power-and-Correction Circuits: For analog and digital clocks. Relay controlled. a. Wired Synchronous Digital Clock Power-and-Correction Circuits. b. Data Output Port for Digital Secondary Clock Correction Circuit: RS485 or similar circuit for scheduled periodic correction signals. 5. Modem and PC interface software suitable for remote programming and automatic NIST or UTC synchronization. 6. Circuits for Audible Signal Devices: Relay controlled, manually switchable, using controls on the master clock. Rated 120-V ac. 7. Power Supplies: Capacity for internal loads and power-and correction circuits of connected clocks. Addendum

6 SEWARD MONTESSORI SCHOOL KARGES-FAULCONBRIDGE, INC. ADDITION & REMODELING KFI: Enclosure: Metal cabinet with locking front panel. When cabinet is locked, display indication shall be visible on or through front panel face. Arrange cabinet for surface, semi recessed, or flush mounting as indicated. 9. Housing: Rack-mounting metal enclosure with display indication visible on front panel face. 10. Battery Backup for Time Base: Lithium battery to maintain the timekeeping function and retain the programs in memory during outage of normal ac power supply for up to 10 years. 11. Electrostatic Discharge Resistance: Master clock and secondary indicating clocks shall be tested and certified according to IEC in both human-discharge and direct-injection modes SECONDARY INDICATING CLOCKS A. Analog Clock: Equipped with a sweep second hand. Movement shall be driven by self-starting, permanently lubricated, sealed synchronous motor equipped with a correcting solenoid actuator, or be a microprocessor-based, second impulse unit, compatible with the master clock. 1. Typical of American Time and Signal AllSync 12 Clock Semi Flush Steel Case U55BHAA Typical of American Time and Signal AllSync 12 Clock Surface Steel Case U54BHAA Typical of American Time and Signal AllSync 15 Clock Semi Flush Plastic Case U65BHAA Typical of American Time and Signal AllSync 15 Clock Surface Plastic Case U64BAAA307 B. Interval-Timer Clock: Digital microprocessor-controlled, 4-inch unit with 2-1/2-inch, red LED digital display for hours and minutes and 1-5/16-inch display for seconds; a separately mounted, mode-control switch; and the following features: 1. Display Visibility: Hour and minute numerals readable at 30 feet in normal ambient light. 2. Operating Modes: a. Normal: Clock operates as a regular secondary system clock, displaying corrected time in normal display configuration, selectable between 12- and 24-hour formats, with "PM" digital display for 12-hour format. b. Count-Down or Count-Up Timer: Selected by mode-control switch count-up and countdown positions, and capable of being preset at the mode-control station. 3. Mode-Selector Switch: Push-button or rotary, multiposition type, flush mounted; with start, stop, and reset capability in both count-up and count-down modes. 4. Audible tone signal: Housed in clock or mode-selector-switch box. Sounds at end of preset up or down count. C. Secondary Indicating Clock Characteristics: 1. Clock Type: Analog. 2. Face Configuration: Single or Double. 3. Mounting: Semi recessed. 4. Nominal Dimensions: 12 diameter. 5. Dial Face Color: Black. 6. Analog Clock Crystal: Clear polycarbonate. 7. Face Color: White. 8. Display Height: Coordinate in field. 9. Digital Clock Lens: Antiglare acrylic material. 10. Battery Backup: Yes. 11. Interval-Timer Display: Yes PROGRAM SIGNAL DEVICES A. Bells: Heavy-duty, modular, vibrating type with the following sound-output ratings measured at 10 feet: 1. 4-Inch Bell: 90 db. a. Typical of Edwards volt vibrating type 340-4N Inch Bell: 95 db. a. Typical of Edwards volt vibrating type 340-6N Addendum

7 KARGES-FAULCONBRIDGE, INC. KFI: SEWARD MONTESSORI SCHOOL ADDITION & REMODELING Inch Bell: 104 db. a. Typical of Edwards volt vibrating type N5 B. Clock Buzzers: Adjustable output signal device designed for mounting within clock housing or outlet box. 1. Sound-Output Rating Measured at 3 Feet: 75 db. 2. Audible Tone Frequency: Manufacturer's standard between 120 Hz and 2 khz. C. Outdoor Signal Equipment: Weatherproof models listed for outdoor use. D. Mounting Arrangement for Signal Devices: Designed for attachment with screws on the mounting plate of a flush-mounted back box unless otherwise indicated. E. Enclosures for Flush-Mounting Bells and Horns: Enclosure, mounting plate, and grille assembly shall be furnished by device manufacturer to match features of the device to be mounted. Enclosure shall be recessed in wall, completely enclosing the device, with grille mounting over the open side of the enclosure and flush with the wall. F. Connection Provision for Signal-Indicating Devices: Wire pigtail or compression splice CLOCK CIRCUIT POWER BOOSTER A. Description: Transformer power supply, mounted in steel cabinet with hinged door, and having fuseprotected input and output circuits BACK BOXES FOR SECONDARY INDICATING CLOCKS AND PROGRAM DEVICES A. Description: Box and cover-plate assembly shall be furnished by device manufacturer and be suitable for device to be mounted. Back boxes shall be equipped with knockouts and hanger straps or mounting adapters arranged for flush mounting the device unless otherwise indicated GUARDS A. Description: Formed-steel wire, shaped to fit around guarded device, with 1-inch maximum clearance. 1. Mounting Provisions: Fixed tabs, welded to guard and arranged for screw attachment to mounting surface. 2. Finish for Indoor Devices: Clear epoxy lacquer over zinc plating. 3. Finish for Outdoor Devices: Black powder coat over zinc plating and primer CONDUCTORS AND CABLES A. 120-V AC and Class 1 Signal and Control Circuits: Stranded, single conductors of size and type recommended by system manufacturer. Materials and installation requirements are specified in Section "Low-Voltage Electrical Power Conductors and Cables." B. Class 2 and Class 3 Signal and Control Circuits: Single conductor or twisted-pair cable, unshielded, unless manufacturer recommends shielded cable. C. Data Circuits: Category 6 minimum, unshielded, twisted-pair cable, unless manufacturer recommends shielded cable. D. Insulation: Thermoplastic, not less than 1/32 inch thick. E. Plenum Cable: Listed and labeled for plenum installation. Addendum

8 SEWARD MONTESSORI SCHOOL KARGES-FAULCONBRIDGE, INC. ADDITION & REMODELING KFI: F. Conductor Color-Coding: Uniformly identified and coordinated with wiring diagrams. G. Shielding: For speaker-microphone leads and at other locations recommended by manufacturer; No. 34 AWG tinned, soft-copper strands formed into a braid or equivalent foil. 1. Minimum Shielding Coverage on Conductors: 60 percent PATHWAYS A. Intercommunication and Program System Raceways and Boxes: Comply with requirements in Section Specifying "Raceway and Boxes for Electrical Systems." B. Intercommunication and Program System Raceways and Boxes: Same as required for electrical branch circuits specified in Section Specifying "Raceway and Boxes for Electrical Systems." C. Outlet boxes shall be no smaller than 2 inches wide, 3 inches high, and 2-1/2 inches deep. D. Flexible metal conduit is prohibited. PART 3 - EXECUTION 3.01 EXAMINATION A. Verify that construction is complete in spaces to receive equipment and that rooms are clean and dry. B. Verify that 120 volt electrical outlet is located within 6 feet of location of transmitter and the outlet is operational and properly grounded WIRING METHODS A. Wiring Method: Install cables in raceways. Conceal raceway and cables except in unfinished spaces. 1. Comply with requirements for raceways and boxes specified in Section Specifying "Raceway and Boxes for Electrical Systems." B. Wiring Method: Conceal conductors and cables in accessible ceilings, walls, and floors where possible. C. Wiring within Enclosures: Bundle, lace, and train cables to terminal points with no excess and without exceeding manufacturer's limitations on bending radii. Provide and use lacing bars and distribution spools ELECTRICAL CONNECTIONS A. Make splices, taps, and terminations on numbered terminal strips in junction, pull, and outlet boxes; terminal cabinets; and equipment enclosures. B. Use splices for connections to clocks and signal devices. C. Ground clocks, programming equipment, and conductor and cable shields to eliminate shock hazard and to minimize ground loops, common-mode returns, noise pickup, cross talk, and other impairments IDENTIFICATION A. Comply with Section Specifying "Identification for Electrical Systems." Addendum

9 KARGES-FAULCONBRIDGE, INC. KFI: SEWARD MONTESSORI SCHOOL ADDITION & REMODELING B. Color-code wires, and apply wire and cable marking tape to designate wires and cables so they are uniformly identified and coordinated with wiring diagrams throughout the system FIELD QUALITY CONTROL A. Perform tests and inspections. 1. Manufacturer's Field Service: Engage a factory-authorized service representative to inspect components, assemblies, and equipment installations, including connections, and to assist in testing. B. Tests and Inspections: 1. Perform operational-system tests to verify compliance with the Specifications and make adjustments to bring system into compliance. Include operation of all modes of clock correction and all programming and manually programmed signal and relay operating functions. 2. Verify that units and controls are properly labeled and interconnecting wires and terminals are identified. C. Clock system will be considered defective if it does not pass tests and inspections. D. Prepare test and inspection reports ADJUSTING A. Program system according to Owner's requirements. Set system so signal devices operate on Ownerrequired schedules and are activated for durations selected by Owner. Program equipment-control output circuits to suit Owner's operating schedule for equipment controlled. B. Adjust sound-output level of adjustable signal devices to suit Owner's requirements. C. Occupancy Adjustments: When requested within 12 months of date of Substantial Completion, provide on-site assistance in adjusting system to suit actual occupied conditions. Provide up to two visits to Project during other-than-normal occupancy hours for this purpose DEMONSTRATION A. Train Owner's maintenance personnel to adjust, operate, and maintain clock-and-program-control system components CLEANING A. Prior to final acceptance, clean exposed surfaces of clocks, using cleaning methods recommended by clock manufacturer. Remove temporary labels from clock faces. Do not remove labels from backs of clocks PROTECTION A. Protect finished installation until final acceptance of the project. END OF SECTION Addendum

10 SEWARD MONTESSORI SCHOOL KARGES-FAULCONBRIDGE, INC. ADDITION & REMODELING KFI: This page is left blank intentionally Addendum