SPECIFICATIONS FOR OFFICE DUCT WORK CLEANING AT ENGINEERING DISTRICT (8-0) BUILDING CONTRACT ADMINISTRATOR 8-0

Transcription

1 SPECIFICATIONS FOR OFFICE DUCT WORK CLEANING AT ENGINEERING DISTRICT (8-0) BUILDING CONTRACT ADMINISTRATOR 8-0 Mike Miller Tele: Fax: Dale Brenizer Tele: Fax:

2 SCOPE OF WORK 1. Contractor to provide all labor, lifts, and cleaning equipment and supplies needed to clean the duct work on the Ground floor. Service must be complete in one weekend after regular business hours between March 1 st and May 1 st Contractors must sign in and out at Visitors Entrance or payment will not be approved or authorized with no exceptions. This applies to all visits to the facility for work to be done. The contractor log will serve as documentation for hours worked. 3. Bid price must include all labor, lifts, cleaning equipment, and supplies. 4. Work hours are defined as, Friday 3pm 10pm Saturday 8am 6pm Sunday 8am 6pm 5. The contractor shall be responsible for all the permits and approvals needed before the start of any project. All permit applications are to be provided, reviewed, and approved by the Department prior to application being submitted to Pennsylvania Department of Labor & Industry. 6. Copies of all the permits approvals and warranties will be handed over to the Department Representative once work is completed and accepted. 7. Each bidder must attend the pre bid meeting and acquaint themselves with the exiting conditions before the bidding, so he/she is familiar with the conditions to be encountered and type of work that may be required. No claims of unfamiliarity or lack of knowledge or extra work will be allowed for failure to comply with this requirement. 8. Building access will be accommodated by the district office personnel, after hours phone numbers will be provided for the use to make contact, if any questions or issues would arise during these hours of work. 9. The Contract Administrator for the District building is Mike Miller 2

3 Office # Cell # Fax All labor and materials used at the facilities will be documented on a confirmation of service form. This form shall serve as documentation for payment and will be faxed to the District Purchasing Agent at (717) for acceptance by the District Contract Administrator, within 48 hours of completion of work. 11. Contractor will mail original invoices to the Comptroller s office as listed on the Purchase order. 12. The Department may terminate the contract at any time for convenience or otherwise, and, the Contractor shall be bound by the decision. I. Description of Work A. The work under the contract includes but not limited to, furnishing material, equipment to completely clean: The supply and return ductwork for the 5 RTU units 2 exhaust fans and 28 fan coil units and all associated ductwork including supply, return, fresh air intake, and exhaust. Provide HEPA filtered vacuums and dust collection machines to remove the debris per NADCA ACR 2013 Vacuum and wipe all ceiling diffusers and associated dirty ceiling tiles and clean all exterior duct work. Vacuum and clean all RTU units. Seal all leaks in the duct work B. All work shall meet or exceed the HVAC regulations of the Pennsylvania Department of labor and Industry and requirements contained in the latest addition of the NADCA ACR The work shall be performed in accordance with all State and Local laws, codes, and ordinances which relate to the work. C. Material and workmanship shall be guaranteed for a period of one year. The contractor shall be responsible for making any adjustments during this time period due to any defective workmanship. 3

4 II. Authorization to do work A. It is distinctly understood and agreed under this contract that the contractor shall perform such work and furnish such materials as authorized in writing by the District Contact Administrator or his/or her designated representative. III. Equipment maintenance & Use A. All HVAC system cleaning contractor cleaning equipment shall be maintained in good working order, consistent with the applicable jurisdictional requirements. Before any equipment is brought onto the work site it shall be cleaned and inspected to ensure that it will not introduce contaminants into the indoor environment or HVAC system. All equipment shall be serviced as needed to limit possible crosscontamination from poor hygiene, and/ or unsafe operating conditions for service personnel and building occupants. Any activity requiring the opening of contaminated vacuum collection equipment on-site, such as servicing or filter maintenance shall be performed in an appropriate containment area or outside of the building. All collection devices, vacuums and other tools and devices shall be cleaned or sealed before relocating to different areas of the building and before removing the equipment from building Fuel-powered equipment shall be positioned in a location to prevent combustion emissions and air exhaust emissions from entering the building envelope. The HVAC system cleaning contractor shall monitor and manage location of equipment to prevent introduction of combustion emissions into the occupied space. When using vacuum collection equipment exhausting within the building envelope, the HVAC system cleaning contractor shall utilize equipment fitted with HEPA filtration and the equipment shall have a collection efficiency of 99.97% at 0.3 micron particle size. IV. Disposal of debris & Contaminated Materials A. All debris removed from the HVAC System shall be disposed of in accordance with applicable federal, state, provincial and local requirements. To prevent cross-contamination, all contaminated materials removed from the HVAC system shall be properly contained prior to removal from the building. Materials 4

5 deemed to be hazardous by governmental agencies shall be handled in strict accordance with any applicable local, regional or national codes. V. HVAC System Cleaning Requirements A. All cleaning and restoration procedures shall achieve the minimum level of visibly clean or the specified level of cleanliness verification as defined in the contractual documents for components within the project scope of work as defined in NADCA Standard ACR. B. Negative Duct Pressurization Prior to and throughout duration of the cleaning process, the HVAC system and associated air duct shall be kept at an appropriate negative pressure differential relative to the indoor non-work area. This negative pressure differential shall be maintained between the portion of the HVAC duct system being cleaned and surrounding indoor occupant spaces. Under all circumstances, the HVAC system cleaning contractor shall verify pressurization differential during the project. When utilizing vacuum collection equipment exhausting indoors it shall utilize HEPA filtration and the equipment shall have a collection efficiency of 99.97% at 0.3 micron particle size and be capable of retaining dislodged debris. All equipment used to create negative duct pressurization that does not have HEPA filtration shall be exhausted outdoors to a location that would not allow reentrainment. The location is to be determined and agreed on by the department. VI. Service Openings A. The HVAC system cleaning contractor shall utilize service openings, as required for proper cleaning, at various points of the HVAC system for physical and mechanical entry, and inspection. The HVAC system cleaning contractor shall utilize existing service openings installed in the HVAC system where possible. Service openings installed into the system as needed shall not degrade the structural, thermal, or functional integrity of the system and shall comply with applicable UL, SMACNA and NFPA standards, as well as local, regional, and state codes. 5

6 Service openings shall be created in a manner that allows for proper closure and shall not hinder, restrict, or alter the airflow within the air duct. Service opening construction materials and methods shall be in compliance with industry standards and local codes, using materials acceptable under those standards and codes. The HVAC system cleaning contractor shall use duct access doors and permanent panels fabricated with materials classified for flammability and smoke spread if the material is exposed to the internal airstream. All tapes used in the installation and closure of service openings shall meet the requirements of UL 181A. Service panels used for closing service openings in the HVAC system shall be of an equivalent gauge or heavier so as to not compromise the structural integrity of the duct. Service panels used for closing service openings shall be mechanically fastened (screwed or riveted) at maximum every 4 on center and equally spaced. The panel shall overlap the duct surfaces by a minimum of 1 on all sides. Closures must be properly insulated to prevent heat loss/gain or condensation on surfaces within the system. Rigid fibrous glass duct systems shall be resealed in accordance with NAIMA recommended practices. Only closure techniques that comply with UL Standard 181 or UL Standard 181A are suitable for fibrous glass duct system closures. Access and closure of service openings installed in fibrous glass shall be created and closed in such a manner that there are no exposed fibrous glass edges within the system common to the airstream. Any fibrous glass removed during the installation of a service opening shall be repaired or replaced with like material of the same thickness so that there are no breaks or openings that would degrade the R value, service rating or vapor/air barrier characteristics. All service openings shall be closed with materials meeting UL 181 for smoke generation and flame spread. All service openings capable of being re-opened for future inspection or remediation shall be clearly marked and have their location reported to the owner in project report documents. 6

7 Cutting service openings into flexible duct is not permitted. Flexible duct shall be disconnected at the ends as needed for proper cleaning and inspection and shall be properly reconnected. All new and replacement panels shall be painted to match the color of the adjacent exiting ductwork Schedule Pre-bid Meeting: Date: PennDOT Engineering District Herr Street, Harrisburg PA Any questions for Department should be submitted by: Date: To: Melissa Malavenda Fax: