Tualatin Valley Fire & Rescue Finance Department SW 70 th Ave., Tigard, OR Phone: , Fax:

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1 Tualatin Valley Fire & Rescue Finance Department SW 70 th Ave., Tigard, OR Phone: , Fax: SOLICITATION NO: ITB AMENDMENT NO. 2 General Contractor Construction Services for Fire Station 68 TO: Emerick Construction Todd Construction Skyward Construction Swinerton Builders DATE: July 22, 2013 It is in the public interest to keep the ITB due date and time July 23, 2013 at 2:00 PM, with first-tier disclosure at 4:00 PM per the bid document. The following changes or additions to ITB Construction Services for Fire Station 68 are announced: DRAWINGS: SHEET A1.2 DETAIL 8/A1.2: ADD the following: Roof framing to be 2x8 s at 24 o.c. Roof sheathing to be 23/32 APA Rated sheathing with minimum panel index 48/24. See Sheet S3.1 for nailing. SHEETS A2.4 & ROOF PLAN & FLOOR PLAN WASTE & VENT: P1.1 ADD the following: Verify size and location of all downspouts prior to plumbing rough-in. SHEET S1.1 FOUNDATION PLAN: Extent of Trench Drain in Apparatus Bay to be as shown on Sheets A2.1 and P1.1.

2 SOLICITATION NO: ITB AMENDMENT NO. 2 continued SHEET P0.1 PLUMBING FIXTURE CONNECTION SCHEDULE: Trench Drain TD-1: Product number to be M. SHEET E3.1 ELECTRAL: Revise power in Room 133 per attached Sheet RE-1. SHEET E3.3 ELECTRAL: Revise Antenna Equipment Schedule per attached Sheet RE-2. SHEET T3.1 ELECTRAL: Revise volume control location in Room 113per attached Sheet RE-6. SHEET E4.2 ELECTRAL: Revise Detail 3/E4.2 per attached Sheet RE-3. SHEET E5.1 ELECTRAL: Revise Detail 1/E5.1 per attached Sheet RE-4. Revise Detail 3/E5.1 per attached Sheet RE-5.

3 SOLICITATION NO: ITB AMENDMENT NO. 2 continued SPECIFICATIONS: SECTION FLASHING and SHEET METAL: Article 2.4 A: Change article to read: Roof Pans: 24 ga. by 16 inches wide, 2 inch (minimum) high standing seam with no striations. Install using concealed clip fasteners. ADD the following: Article 2.4 E: Add article to read: Metal Roofing system to be AEP Span Span-Lok hp 16, or approved. SECTION ENTRANCES and STOREFRONTS: ADD the following: Article 2.2 B.6: Add article to read: Provide Kawneer Intermediate Rail as shown on Drawings. Article 2.2 B.7: Add article to read: Provide Kawneer 12 Bottom Rail as shown on Drawings. SECTION OCCUPANCY SENSORS: DELETE Section in its entirety. ADD new Section 16906, attached. PRODUCT APPROVALS: SECTION 07600: SECTION 15400, 2.26 SECTION 15400, 2.30 SECTION 15500, 2.2 METAL ROOFING: Taylor Commercial Products Versa Span 24 Ga. CHINA FIXTURES: Sloan DRINKING FOUNTAINS: Acorn ELECTRIC WALL HEATERS: Indeeco

4 SOLICITATION NO: ITB AMENDMENT NO. 2 continued SECTION 15500, 2.24 SMOKE DAMPERS: Greenheck SECTION 15950, 2.7 & 2.8 CARBON MONOXIDE DETECTOR & CONTROLLER: CARBON DIOXIDE SENSORS: MSA ATTACHMENTS: are hereby incorporated and become an integral part of this amendment. This addendum must be acknowledged in the space provided on the Bidder Certification form supplied in the original RFP document. Failure to acknowledge receipt of this addendum may be cause to reject your offer. All other terms, conditions, and specifications of the original solicitation as changed by any previous addenda remain unchanged. Sincerely, Eric Wicks, CPPB Purchasing Manager

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11 OCCUPANCY SENSORS SECTION SECTION OCCUPANCY SENSORS PART 1 - GENERAL 1.1 SUMMARY A. Section Includes: 1. Occupancy sensors. 2. Combined occupancy sensor/wall switches ("sensor/switches"). 1.2 SYSTEM DESCRIPTION A. Provide occupancy sensors to sense the presence of human activity within the desired space and enable or disable the on/off manual lighting control function provided by local switches. B. Upon detection of human activity by the detector, sensor initiates a time delay to maintain the lights on for a preset period of time. Field adjustable time delay setting from 30 seconds to 15 minutes. C. Factory set sensors for maximum sensitivity. D. LED lamp built into sensor indicates when occupant is detected. E. Provide zero cross relay control with sensors and sensor/switches; relay contacts close and open when AC voltage signal is at zero. F. Where line voltage sensors and sensor/switches are used, provide to match voltage of controlled circuit. G. Line Voltage Sensors, Control Units, and Relays: UL listed. 1.3 SUBMITTALS A. Provide, on reproducible architectural floor plan, a layout of sensors indicating their sensing distribution. B. Provide wiring diagrams indicating low voltage and line voltage wiring requirements. PART 2 - PRODUCTS 2.1 OCCUPANCY SENSORS (CEILING AND WALL MOUNTED) A. Ultrasonic Occupancy Sensors: 1. Sensor Function: Detects human presence in the controlled floor area by detecting Doppler shifts in 32kHz ultrasound created by sensor. PECK SMILEY ETTLIN ARCHITECTS TVF&R

12 OCCUPANCY SENSORS SECTION Sensors are precision crystal controlled and do not interfere with each other when two or more are placed in the same area. Sensor includes advanced digital signal processing to reduce false on signals without decreasing sensitivity, as well as immunity to RFI/EMI sources. 3. De-pluggable terminal for plug-and-play replacement. 4. Sensor utilizes DIP switches for adjustment to time delay and override. Field adjustable settings for sensitivity. 5. Low Voltage Sensor: 24VDC power. Sensor operates remote power switch packs. Multiple sensors can be wired in parallel allow coverage of large areas. 6. Ceiling-Mounted Sensor: a. Maximum protrusion of 1.1 inches and blend in aesthetically with the ceiling. b. Coverage: 360 degree sensor range; coverage: 2,000 square feet, unless otherwise noted on Drawings. c. Manufacturers: GE Aware CUS Series or approved. 7. Sensor power (24 volt) capable of being derived from GE lighting control panel. B. Dual Technology Sensors 1. Sensor Function: Combined capability of passive infrared with ultrasonic technology. 2. Function: Upon a person entering a space, motion must be senses by both technologies before lighting will be turned on. After this has occurred, detection by either technology will hold lighting on. Sensors retrigger time delay where only one motion is necessary to turn on lights within 5-seconds after turning off. 3. Ceiling-Mounted Sensor: a. 360-degree sensor range; coverage; 1,2000 SF for half-step motion, unless otherwise noted on Drawings. b. Low Voltage Sensor: 24VDC power. Sensor operates remote power switch packs. Multiple sensors can be wired in parallel allow coverage of large areas. c. Basis of Design: GE Aware CDT Series. 2.2 COMBINED OCCUPANCY SENSOR/WALL SWITCHES ("SENSOR/SWITCHES") A. Completely self-contained sensor system that fits into a standard single gang box. Internal transformer power supply, latching dry contact relay switching mechanism compatible PECK SMILEY ETTLIN ARCHITECTS TVF&R

13 OCCUPANCY SENSORS SECTION with electronic ballasts, compact fluorescent, and inductive loads. Triac and other harmonic generating devices are not allowed. B. Passive infrared sensor technology includes advanced signal processing to reduce false triggers without increasing sensitivity. LED indicator blinks when occupant sensed. C. Rated to switch loads: 7VA at 24 VAC. Zero-crossing technology switches lighting off when AC voltage is at zero, minimizes contact wear. D. Provide adjustable daylight feature that holds lighting "off" when a desired footcandle level is present. E. Provide integral off override switch with no leakage current to the load or ground. F. Vandal-resistant lens. G. Finish: Finish as selected by Architect. H. Standard Sensor/Switch: PART 3 - EXECUTION 3.1 INSTALLATION degree sensor range; coverage: 150 square feet for desktop activity. 2. Manufacturers: GE Aware WIR-10 Series or approved. A. Install occupancy sensors as directed by manufacturer's instructions. Provide connections to control circuits, occupancy sensors, power supply pack and low voltage wiring. B. Drawings were laid out using GE sensors as the basis of design. If another manufacturer is approved for installation under this Contract, verify with manufacturer representative that sensors are laid out to provide coverage across room space, adding additional sensors as needed. C. Provide power packs for the sensor to control the number of circuits and/or switch legs within its area of coverage. D. Field adjust each sensor to maximize its coverage of the room space. E. Relocate sensors with ultrasonic technology to avoid being closer to HVAC diffusers and power packs than recommended by manufacturer. F. Field set time delay for each device as noted below: 1. Classrooms and Conference Rooms: 30 minutes 2. Restrooms: 15 minutes 3. Storage Rooms, Janitor's Closets, Unisex Restrooms: 5 minutes PECK SMILEY ETTLIN ARCHITECTS TVF&R

14 OCCUPANCY SENSORS SECTION Other Spaces: 15 minutes. 3.2 QUALITY CONTROL A. Use manufacturer's published testing and adjusting procedures to adjust sensors time delay, daylight sensitivity, and passive infrared sensitivity to satisfaction of the Owner. END OF SECTION PECK SMILEY ETTLIN ARCHITECTS TVF&R