***NOTE BID DATE CHANGE***

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1 To: From: Date: Prospective Bidders Wold Architects and Engineers March 25, Saint Peter Street Saint Paul, MN tel fax Comm. No: Subject: Addendum No. 1 for Bidding Documents for the: West St. Paul Ice Arena Renovation Bid Package #2 West St. Paul, Minnesota ***NOTE BID DATE CHANGE*** BIDS DUE APRIL 7, 2015 AT 2:00PM This addendum forms a part of the Contract Documents dated March 13, Acknowledge receipt of this Addendum on the space provided on the Bid Form. Failure to do so may result in disqualification of Bid. This Addendum consists of two (2) typed sheets and attachments: Specification Sections: , , Drawings: A1.10, A1.11, A1.12, M1.00, M3.00, M5.01 PROJECT MANUAL 1. SPECIFICATION SECTION ADVERTISEMENT FOR BIDS A. Reissued this addendum. 2. SPECIFICATION SECTION PLUMBING FIXTURES A. Reissued this addendum. 3. SPECIFICATION SECTION SEQUENCE OF OPERATIONS A. Reissued this addendum. PRIOR APPROVALS The following schedule amends designated specification sections to list additional acceptable manufacturers. Use of any product by any of these manufacturers will be permitted only if after review of shop drawings or detailed product data per Section , Architect determines that proposed materials or equipment are equivalent in performance, construction and appearance to product(s) specified. Where anticipated product substitutions would alter the design or space requirements indicated on the Drawings, pay for cost of design and construction revisions including the cost of associated work by other contractors. For complete requirements, see Specification Section Substitutions and Product Options. Minnesota Illinois Michigan Colorado Iowa Section No. Item Type Acceptable Manufacturer A Utility Set Fans Greenheck A Direct Gas-Fired Heating Greenheck and Ventilating Units Page 1 of 2 designers and researchers for public environments

2 DRAWINGS 1. DRAWING A1.10 MAIN LEVEL FLOOR PLAN A. Reissued this addendum 2. DRAWING A1.11 ENLARGED PLANS AND DETAILS A. Reissued this addendum 3. DRAWING A1.12 DETAILS A. Issued this addendum 4. DRAWING M1.00 MAIN LEVEL DEMOLITION AND PLUMBING PLANS A. Reissued this addendum 5. DRAWING M3.00 MAIN LEVEL MECHANICAL PLANS A. Reissued this addendum 6. DRAWING M5.01 MECHANICAL DETAILS AND SCHEDULES A. Reissued this addendum END OF ADDENDUM #1 Minnesota Illinois Michigan Colorado Iowa Page 2 of 2 designers and researchers for public environments

3 SECTION ADVERTISEMENT FOR BIDS ICE ARENA RENOVATION 60 W. EMERSON AVE. WEST SAINT PAUL, MINNESOTA City of West Saint Paul will receive single prime sealed bids for Ice Arena Refrigeration Equipment Replacement until 2:00 PM local time on April 2, 2015 April 7, 2015 at the City of West Saint Paul, 1616 Humboldt Ave., West Saint Paul, Minnesota, 55118, at which time and place all bids will be publicly opened and read aloud. Bidding documents, including the Proposal Form, Drawings and Specifications, will be on file at the Offices of the Architect, Wold Architects and Engineers, 305 St. Peter Street, St. Paul, Minnesota (651) ; at the Minnesota Builders Exchange; McGraw Hill Construction/Dodge Plan Center; Reed Construction; isqft Plan Room (St. Paul, MN); and from PlanWell at This project includes: Replacement of all exterior doors, restroom plumbing fixtures, refrigeration room modifications, mechanical and electrical improvements. American Reprographics Company, 4730 Park Glen Road, St. Louis Park, Minnesota (952) , facsimile (952) will provide complete downloadable sets of the Bidding Documents to prospective bidders and subcontractors. The downloads will be available March 13, A deposit check in the amount of $25 made out to ARC for each set downloaded via the internet at and clicking on the PlanWell icon, then the Public Plan Room icon, select Ice Arena Refrigeration Equipment Replacement. Make proposals on the bid forms supplied in the Project Manual. No oral, telegraphic or telephonic proposals or modifications will be considered. Submit with each bid, a certified check or acceptable bidder's bond payable to City of West Saint Paul in an amount equal to five percent (5%) of the total bid. The successful bidder will be required to furnish satisfactory Labor and Material Payment Bond, and Performance Bond. The City reserves the right to reject any or all bids, to waive irregularities, and to award the contract in the best interests of the Owner. The City may retain the deposits of the three lowest bidders for a period of at least sixty (60) days after the date set for the opening of bids. The City of West St. Paul does not discriminate on the basis of race, color, national origin, sex, religion, age, or disability in employment or the provision of services. Upon request, this information can be made available in Braille, large print, audio tape and/or computer disk. Please contact ADA Coordinator at (651) , or TDD (651) The Owner requires Substantial Completion of the project on or before September 11, Dated: March 13, 2015 By: Chantal Doriott City Clerk City of West St. Paul Published: Southwest Review March 15 & March 22, 2015 An Equal Opportunity/ Affirmative Action Employer No BP# Advertisement For Bids

4 SECTION PLUMBING FIXTURES PART 1: GENERAL 1.01 RELATED DOCUMENTS A. Drawings and general provisions of the contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section SUMMARY A. This Section includes: 1. Water closets 2. Urinals 3. Flush valves 4. Lavatories 5. Faucets 6. Drains 7. Wastes 8. Eye/face wash 9. Emergency mixing valves 10. Supplies with angle stops B. Related Sections include the following: 1. Division 22 Section "Domestic Water Piping Specialties" for backflow preventers, floor drains, and specialty fixtures not included in this Section. C. Products installed but not furnished under this Section include: 1. Owner-supplied fixtures, as indicated. 2. Accessories, appliances, appurtenances, and equipment specified in other sections, requiring plumbing services or fixture- related devices, as indicated DEFINITIONS A. ABS: Acrylonitrile-butadiene-styrene plastic. B. Accessible Fixture: Plumbing fixture that can be approached, entered, and used by people with disabilities. C. Cast Polymer: Cast-filled-polymer-plastic material. This material includes cultured-marble and solid-surface materials. D. Cultured Marble: Cast-filled-polymer-plastic material with surface coating. E. Fitting: Device that controls the flow of water into or out of the plumbing fixture. Fittings specified in this Section include supplies and stops, faucets and spouts, shower heads and tub spouts, drains and tailpieces, and traps and waste pipes. Piping and general-duty valves are included where indicated. F. FRP: Fiberglass-reinforced plastic. G. PMMA: Polymethyl methacrylate (acrylic) plastic. No Plumbing Fixtures

5 H. PVC: Polyvinyl chloride plastic. I. Solid Surface: Nonporous, homogeneous, cast-polymer-plastic material with heat-, impact-, scratch-, and stainresistance qualities SUBMITTALS A. Product data for each type of plumbing fixture specified, including fixture and trim, fittings, accessories, appliances, appurtenances, equipment, supports, construction details, dimensions of components, and finishes. B. Wiring diagrams for field-installed wiring of electrically operated units. C. Color Charts D. Operation and Maintenance Data: For plumbing fixtures to includes emergency operation and maintenance manuals QUALITY ASSURANCE A. Source Limitations: Obtain plumbing fixtures, faucets, and other components of each category through one source from a single manufacturer. 1. Exception: If fixtures, faucets, or other components are not available from a single manufacturer, obtain similar products from other manufacturers specified for that category. B. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for intended use. C. Regulatory Requirements: Comply with requirements in ICC A117.1, "Accessible and Usable Buildings and Facilities" as required by State Code for plumbing fixtures for people with disabilities. D. Regulatory Requirements: Comply with requirements in Public Law , "Energy Policy Act," about water flow and consumption rates for plumbing fixtures. E. NSF Standard: Comply with NSF 61, "Drinking Water System Components--Health Effects," for fixture materials that will be in contact with potable water. F. Lead Free Requirements: All plumbing pipes, fittings, valves, fixtures, and other components in systems providing water for human consumption shall be lead-free in accordance with the Reduction of Lead in Drinking Water Act and the Safe Drinking Water Act, where the term lead-free is defined to mean not containing more than 0.2 percent lead when used with respect to solder and flux; and not more than a weighted average of 0.25 percent lead when used with respect to the wetted surfaces of pipes, pipe fittings, plumbing fittings, and fixtures. 1. Lead-free products shall be compliant with the requirements of either NSF 61-G or NSF Lead-free products shall bear a certified mark by a nationally accredited certification body. G. Select combinations of fixtures and trim, faucets, fittings, and other components that are compatible. H. Comply with the following applicable standards and other requirements specified for plumbing fixtures: 1. Vitreous-China Fixtures: ASME A M. 2. Water-Closet, Flush Valve, Tank Trim: ASME A Water-Closet, Flushometer Tank Trim: ASSE I. Comply with the following applicable standards and other requirements specified for lavatory and sink faucets: No Plumbing Fixtures

6 1. Faucets: ASME A NSF Potable-Water Materials: NSF Pipe Threads: ASME B Sensor-Actuated Faucets and Electrical Devices: UL Supply Fittings: ASME A Brass Waste Fittings: ASME A Point-of-Use Thermostatic Mixing Valves: ASSE J. Comply with the following applicable standards and other requirements specified for miscellaneous fittings: 1. Brass and Copper Supplies: ASME A Plastic Tubular Fittings: ASTM F Brass Waste Fittings: ASME A Sensor-Operation Flushometers: ASSE 1037 and UL K. Comply with the following applicable standards and other requirements specified for miscellaneous components: 1. Pipe Threads: ASME B Plastic Toilet Seats: ANSI Z EXTRA MATERIALS A. Furnish extra materials described below that match products installed and that are packaged with protective covering for storage and identified with labels describing contents. 1. Faucet Washers and O-Rings: Equal to 10 percent of amount of each type and size installed. 2. Faucet Cartridges and O-Rings: Equal to 5 percent of amount of each type and size installed. 3. Flushometer Valve, Repair Kits: Equal to 10 percent of amount of each type installed, but no fewer than 2 of each type. 4. Provide hinged-top wood or metal box, or individual metal boxes, with separate compartments for each type and size of extra materials listed above. 5. Toilet Seats: Equal to 5 percent of amount of each type installed DELIVERY, STORAGE, AND HANDLING A. Deliver plumbing fixtures in manufacturer's protective packing, crating, and covering. B. Store plumbing fixtures on elevated platforms in a dry location. PART 2: PRODUCTS 2.01 MANUFACTURERS A. Subject to compliance with requirements, provide products by one of the following for each fixture type or component listed. 1. Vitreous China Fixtures: a. American Standard b. Crane No Plumbing Fixtures

7 c. Eljer d. Kohler e. Zurn One f. Sloan 2. Flushometer: a. Sloan (with DFB option) b. Zurn Aquavantage 3. Faucets: a. Chicago b. Delta c. Zurn Aqua Spec d. Sloan 4. Emergency Fixtures: a. Chicago b. Bradley c. Haws d. Guardian e. Acorn Safety f. Speakman 5. Toilet Seats: a. Church b. Bereke c. Olsonite d. Sperzel e. Centoco f. Proflo g. Zurn h. Bemis 6. Plumbing Supports: a. Josam b. Wade c. Smith d. Zurn e. Watts f. Mifab 7. Emergency Mixing Valves: a. Powers b. Lawler c. Acorn Safety 8. Traps and Supplies: a. Zurn Traps and Supplies b. Chicago c. Brass Craft No Plumbing Fixtures

8 d. Central e. Royal f. Dearborn g. T&S h. Keeney 2.02 PLUMBING FIXTURES, GENERAL A. Provide plumbing fixtures and trim, fittings, other components, and supports as specified in "Plumbing Fixture Data Sheets" at the end of Part 3 of this Section. B. Provide plumbing fixtures and trim, fittings and other components that are certified in accordance with NSF 61 and NSF Annex G to contain less than 0.25% lead content, for all products in contact with drinking water FAUCETS A. Faucets General: Unless otherwise indicated, provide faucets that are solid, one piece cast brass with polished, heavy chrome-plate finish conforming to ASME A M. Lead content shall be less than 0.25% FITTINGS, EXCEPT FAUCETS A. Fittings General: Unless otherwise specified, provide fitting fabricated of brass, with polished heavy chrome plate finish. B. Escutcheons: Wall flange with set screw or sheet steel wall flange with friction clips, of depth adequate to conceal protruding roughing-in fittings SUPPLIES WITH ANGLE STOPS A. Construction: Polished chrome plated solid brass construction. Plastic stems are not allowed. Lead content shall be less than 0.25%. B. Cartridge: Slow compression, renewable cartridges designed to close with water pressure. C. Supply Riser: 3/8 O.D. x 12 flexible copper, chrome plated supply riser. D. Handle: Removable, chrome plated, 2 ¼ metal loose key tee. E. Escutcheon: Chrome plated metal wall flange. F. Performance: psi rated operating pressure F rated operating temperature. G. Codes: ASME A M FLUSHOMETERS A. Provide flushometers compatible with fixtures, with features and of consumption indicated. B. Construction: Cast-brass body, brass or copper pipe or tubing inlet with wall flange and tailpiece with spud, screwdriver check stop, vacuum breaker, and brass lever handle actuation except where other variations are specified. Type shall be diaphragm operation except where other type is specified. No Plumbing Fixtures

9 C. Finish: Exposed metal parts shall be polished chrome-plated, except components installed in a concealed location may be rough brass or unfinished. D. Water Closet Flushometers: Furnish with the following features. 1. Non-hold-open feature. 2. Screw driver angle stop with seat bumper and cap. 3. Metal oscillating handle actuation. 4. Wall and spud flanges. 5. Adjustable tailpiece. 6. Vacuum breaker connection. 7. Furnish flushometers with factory-set, field-adjustable water consumption per cycle: a. Consumption: 1.6 gallons per flushing cycle. E. Urinal Flushometers: Furnish with the following features. 1. Non-hold-open feature. 2. Screw driver angle stop with cap. 3. Metal oscillating handle actuation. 4. Wall and spud flanges. 5. Adjustable tailpiece. 6. Vacuum breaker connection. 7. Furnish flushometers with factory-set, field-adjustable water consumption per cycle: a. Consumption: 1.0 gallons per flushing cycle TOILET SEATS A. General: Provide toilet seats compatible with water closets, and of type, color, and features indicated. B. Toilet Seats: Heavy-duty, commercial/industrial type, elongated, open front, solid plastic, with self-sustaining check hinge, less cover PLUMBING FIXTURE SUPPORTS A. Supports: ASME A M, categories and types as required for wall-hanging fixtures specified, and wall reinforcement. B. Support categories are: 1. Urinal Carrier: Supports for wall hanging urinal. Provide floor-mounted welded feet and supports with steel upright, upper hanger plate, lower bearing plate and adjustable supporting rods. 2. Reinforcement: 2-inch by 4-inch wood blocking between studs or 1/4-inch by 6-inch steel plates attached to studs, in wall construction, to secure floor-mounted and special fixtures to wall. C. Support Types: Provide support of category specified, of type having features required to match fixture. D. Provide supports specified if a part of fixture description, in lieu of category and type requirements above. E. Subject to compliance with requirements, provide plumbing fixture supports from one of the following: 1. Josam Mfg. Co. 2. Smith (Jay R.) Mfg. Co. 3. Wade; Subs of Tyler Pipe Corp. No Plumbing Fixtures

10 4. Zurn Industries; Hydromechanics Division 5. Watts Drainage 6. Mifab PART 3: EXECUTION 3.01 EXAMINATION A. Examine roughing-in for potable cold water and hot water supplies and soil, waste, and vent piping systems to verify actual locations of piping connections prior to installing fixtures. B. Examine walls, floors, and cabinets for suitable conditions where fixtures are to be installed. C. Do not proceed until unsatisfactory conditions have been corrected APPLICATION A. Install plumbing fixtures and specified components, in accordance with designations and locations indicated on Drawings. B. Install supports for plumbing fixtures in accordance with categories indicated, and of type required: 1. Chair carriers for the following fixtures: a. Wall-hanging urinals INSTALLATION OF PLUMBING FIXTURES A. Install plumbing fixtures level and plumb, in accordance with fixture manufacturers' written installation instructions, roughing- in drawings, and referenced standards. B. Install floor-mounted, floor-outlet water closets with closet flanges and gasket seals. C. Install wall-hanging, back-outlet urinals with gasket seals. D. Fasten wall-hanging plumbing fixtures securely to supports attached to building substrate when supports are specified, and to building wall construction where no support is indicated. E. Fasten wall-mounted fittings to reinforcement built into walls. F. Fasten counter-mounting-type plumbing fixtures to casework. G. Secure supplies behind wall or within wall pipe space, providing rigid installation. H. Install stop valve in an accessible location in each water supply to each fixture. I. Install trap on fixture outlet except for fixtures having integral trap. J. Install escutcheons at each wall, floor, and ceiling penetration in exposed finished locations and within cabinets and millwork. Use deep pattern escutcheons where required to conceal protruding pipe fittings. K. Seal fixtures to walls, floors, and counters using a sanitary-type, one-part, mildew-resistant, silicone sealant in accordance with sealing requirements specified in Division 7. Match sealant color to fixture color. No Plumbing Fixtures

11 3.04 CONNECTIONS A. Piping installation requirements are specified in other sections of Division 22. The Drawings indicate general arrangement of piping, fittings, and specialties. The following are specific connection requirements: 1. Install piping connections between plumbing fixtures and piping systems and plumbing equipment specified in other sections of Division Install piping connections indicated between appliances and equipment specified in other sections, direct connected to plumbing piping systems FIELD QUALITY CONTROL A. Inspect each installed fixture for damage. Replace damaged fixtures and components. B. Test fixtures to demonstrate proper operation upon completion of installation and after units are water pressurized. Replace malfunctioning fixtures and components, then retest. Repeat procedure until all units operate properly ADJUSTING AND CLEANING A. Operate and adjust faucets and controls. Replace damaged and malfunctioning fixtures, fittings, and controls. B. Adjust water pressure at faucets and flushometers to provide proper flow and stream. C. Replace washers or cartridges of leaking and dripping faucets and stops. D. Clean fixtures, fittings, and spout and drain strainers with manufacturers' recommended cleaning methods and materials. E. Review the data in Operating and Maintenance Manuals. Refer to Division 1 Section "Project Closeout." 3.07 PROTECTION A. Provide protective covering for installed fixtures and fittings. B. Do not allow use of fixtures for temporary facilities, except when approved in writing by the Owner FIXTURE SCHEDULE A. Provide plumbing fixtures as scheduled on the following "Data Sheets." Each Data Sheet begins with a new page. No Plumbing Fixtures

12 P-1 WATER CLOSET DATA SHEET WATER CLOSET: American Standard "Madera" No Applicable Standard: ANSI-A M Material: Vitreous China bowl and bolt caps Bowl Type: Elongated, Siphon jet Mounting and Outlet: Floor mounted, floor outlet with top inlet spud Rim Height: 14-1/8 inches (See Architectural elevations) Color: White with white seat Fittings and Accessories: Provide the following compatible components: Flushometer: Sloan Model 8111-LH-MC-DFB exposed diaphragm type 1.6 gallon flush valve equipped with battery powered solenoid operator, adaptive sensor, over-ride button, tamper proof screws, non-hold open feature, and vacuum breaker. Provide with Dual Filtered Fixed Bypass Diaphragm. The sensor shall be powered by four (4) AA batteries and have the following features: low battery L.E.D., sensor range adjustment, initial set-up range indicator, and courtesy flush. Toilet Seat: Type 1, Bemis 1955-SS/C, white (less cover) No Plumbing Fixtures

13 P-1H HANDICAP ACCESSIBLE - WATER CLOSET DATA SHEET WATER CLOSET: American Standard "Madera" No Applicable Standard: ANSI-A M Material: Vitreous China bowl and bolt caps Bowl Type: Elongated, Siphon jet Mounting and Outlet: Floor mounted, floor outlet with top inlet spud Rim Height: 16-1/2 inches (See Architectural elevations) Color: White with white seat Fittings and Accessories: Provide the following compatible components: Flushometer: Sloan Model 8111-LH-MC-DFB exposed diaphragm type 1.6 gallon flush valve equipped with battery powered solenoid operator, adaptive sensor, over-ride button, tamper proof screws, non-hold open feature, and vacuum breaker. Provide with Dual Filtered Fixed Bypass Diaphragm. The sensor shall be powered by four (4) AA batteries and have the following features: low battery L.E.D., sensor range adjustment, initial set-up range indicator, and courtesy flush. Toilet Seat: Type 1, Bemis 1955-SS/C, white (less cover) No Plumbing Fixtures

14 P-2 URINAL DATA SHEET URINAL: Existing vitreous china urinal with new flush valve. Fittings and Accessories: Provide the following compatible components: Flushometer: Sloan Model 8111-LH-MC-DFB exposed diaphragm type 1.0 gallon flush valve equipped with battery powered solenoid operator, adaptive sensor, over-ride button, tamper proof screws, non-hold open feature, and vacuum breaker. Provide with Dual Filtered Fixed Bypass Diaphragm. The sensor shall be powered by four (4) AA batteries and have the following features: low battery L.E.D., sensor range adjustment, initial set-up range indicator, and courtesy flush. Support: Existing No Plumbing Fixtures

15 P-3 COUNTERTOP LAVATORY DATA SHEET LAVATORIES: American Standard, "Aqualyn", No Applicable Standard: ANSI-A M Material: Vitreous China Lavatory Type: Self-draining deck with contoured back and side splash shields Dimension: 20"w x 18"d Mounting and Outlet: Counter set. See Architectural elevations. Color: White Fitting and Accessories: Provide the following compatible components: Supplies: (2) Chicago No SSW with end caps Faucet: Chicago CP with E12 VP aerator. Faucet: Sloan Optima Model EBF-187 electronic sensor operated powered hot and cold mixing faucet. The faucet shall be 4 center set, have a metal throat plate, below deck thermostatic mixing valve with integral back check stops, and 0.5 GPM vandal proof aerator. Provide adaptive sensor, batteries, serviceable filtered solenoid valve, and trim plate with anti-rotation pin. All low voltage wiring is the responsibility of the mechanical contractor. Drain: Chrome grid strainer Trap: Exposed chrome with wall escutcheon No Plumbing Fixtures

16 P-4 EMERGENCY EQUIPMENT DATA SHEET EMERGENCY EYE WASH: Chicago 8001-NF Applicable Standards: ANSI Z358.1 Material: Stainless steel bowl, chrome plated brass valves and ABS/PVC plastic eyewash sprayheads. Type: Emergency first-aid eyewash station. Mounting: Wall mount Fitting and Accessories: Provide the following compatible components: Eye Wash: Twin, soft flow sprayhead assembly with protective covers Supply: ½" IPS Operating Valve: Fast-action, push handle. Valve must stay open until manually closed. Drain: Provide 1¼" IPS trap and indirect connection to building waste; satin chrome plated finish concealed with cabinet. Provide with funnel and trap. Mixing Valve: Thermostatic water controller of bronze body, 125 psi rating and two independent control mechanisms to blend hot and cold water and safety feature to shut off hot water. Model shall be Lawler 911E/F or Powers Hydroguard ES 150. Provide with one integral dial thermometer. Provide check valves on hot water and cold water inlet connections. No Plumbing Fixtures

17 P-5 LAVATORY DATA SHEET LAVATORIES: Existing lavatory with new faucet. Applicable Standard: ANSI-A M Fitting and Accessories: Provide the following compatible components: Supplies: (2) Chicago No SSW with end caps. Faucet: Sloan Optima Model EBF-187 electronic sensor operated powered hot and cold mixing faucet. The faucet shall be 4 center set, have a metal throat plate, below deck thermostatic mixing valve with integral back check stops, and 0.5 GPM vandal proof aerator. Provide adaptive sensor, batteries, serviceable filtered solenoid valve, and trim plate with anti-rotation pin. All low voltage wiring is the responsibility of the mechanical contractor. Support: Existing Protective Enclosure: (Provide where electronic faucets are specified, field cut to fit on lower mounted lavatories) Sloan Model ETF-529, or equal, Handicap accessible compliant, high impact white molded rigid vinyl protective enclosure for trap and sensor control devices. The enclosure shall attach to the wall with screw fasteners. END OF SECTION No Plumbing Fixtures

18 SECTION SEQUENCE OF OPERATIONS 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. This Section includes control sequences for HVAC systems, subsystems, and equipment. B. Related Sections include the following: 1. Division 23 Section "Building Automation System" for control equipment and devices and for submittal requirements DEFINITIONS A. DDC: Direct digital control. B. VAV: Variable air volume CONTROL SEQUENCES A. Refer to the attached control sequences and points schedule for required Building Automation Systems work. PART 2: PRODUCTS (Not Applicable) PART 3: EXECUTION (Not Applicable) No Sequence of Operations Reissued Addendum No. 2

19 CONTROL SEQUENCE AND POINT SCHEDULE FOR: Make-up air and Exhaust Systems 1. GENERAL A. The make-up air unit is a direct gas fired unit complete with all factory installed controls, control dampers, and remote control panel complete with an electronic 7-day programmable time clock. Refer to specification section Direct Gas-Fired and Ventilation Units for addition information. B. Install and wire the factory provided make-up air unit control panel in accordance with all manufacturer s installation instructions and guidelines. C. The ammonia leak detection panel is provided under a separate contract. Coordinate with the ammonia leak detection panel manufacturer to coordinate wiring requirements. Wire to the leak detection panel to receive a signal to start the make-up air vent. D. Provide interlock wiring between the make-up air unit and the exhaust fan starter such that the exhaust fan starts and runs when the make-up air unit fan starts. E. Provide and install override switch as indicated on the plans. Wire to the switch to initiate Override Mode. F. All wiring shall conform to Division 26 requirements. 2. CONTROL SEQUENCE A. Occupied Mode. 1. The unit shall be indexed to occupied mode by the programmable 7-day time clock schedule. In the occupied mode the make-up air units and exhaust fan shall run. 2. The make-up air unit discharge air set point shall be set by the discharge air temperature controller on the remote make-up air unit control panel. The discharge air set point shall be initially set for 60.0 degrees F. 3. The mild weather stat option provided with the make-up air unit shall lock out the gas valve operation when the outside air temperature is above 55 degrees F. 4. The on/off/auto switch on the face of the remote control panel shall allow the operater to manually start the system in the on mode. The auto mode shall allow the unit to start by either the time of day schedule or a signal from the ammonia leak detection system. B. Unoccupied Mode. 1. The make-up air unit and exhaust fan shall be off. C. Ammonia Purge Mode. 1. Upon detection of ammonia by the ammonia leak detection panel, the make-up air and exhaust fan shell start. When the ammonia returns to normal the make-up air and exhaust fan shall stop. D. Override Mode 3. SAFETIES 1. The override switch shall start the make-up air and exhaust fan when initated. A. The low temperature limit thermostat provided with the make-up air unit shall override the unit off if the discharge air temperature falls below its set point of 45.0 degrees F (adjustable) for a period greater than 5 minutes. END OF SECTION No Sequence of Operations Reissued Addendum No. 2