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A. Visit and carefully examine those portions of the site and/or present buildings affected by this work so as to become familiar with existing conditions and difficulties that will affect the execution of the work, before submitting proposals. B. Submission of a proposal will be construed as evidence that such examination has been made. Later claims for labor, equipment, materials, etc. required because of difficulties encountered, which could have been foreseen had such examination been made, will not be recognized. 3.4 OWNERSHIP OF EXISTING EQUIPMENT AND HANDLING THEREOF A. Provide demolition of existing work in remodeled areas as indicated on Drawings. Demolition includes, but is not limited to, the removal of all equipment, controls, piping, ducts, supports, etc. and filling, patching and painting to match existing surfaces. When the Owner does not desire to retain Ownership of the removed equipment, the equipment shall be properly disposed. B. Where HVAC equipment is to be removed, recover and properly dispose of all refrigerant recovered from the system. Evacuation, storage, transportation and disposal or recovery shall be in strict accordance with EPA Regulations. 3.5 ELECTRICAL CONNECTIONS A. Provide all electrical work and connections except those specifically set forth below as being provided under Division 26 work. 1. The Electrical Subcontractor shall provide under Division 26 all wiring except the following which will be provided under Division 23: a. Temperature Control Wiring. b. Equipment Control Wiring. C. Interlock Wiring. d. 120V power for energy management controllers. Power for controllers shall be provided by the sub-contractor providing the controls and shall be installed by licensed electricians. 2. The Electrical Subcontractor shall provide all power wiring complete from power source to motor or equipment junction box, including power wiring through starters and shall connect to power lugs on the equipment. 3. The Electrical Subcontractor shall provide all motor starters and contactors except when specified to be furnished by the equipment manufacturer under Division 23. 4. Conduits: a. When Conduit is required for control wiring, the Electrical Subcontractor shall provide under Division 26. Conduit shall be provided for all control work installed within mechanical spaces (exposed) and in walls. 5. Motors: a. Motors shall be furnished by the manufacturer or supplier of the specified equipment. All motors shall be of the premium efficiency type. b. General purpose motors shall be open drip-proof conforming to NEMA Design B, Class B insulation, continuous 40' C ambient, 60 Hz, 1.15 service factor, and 1800 RPM maximum speed unless specified otherwise. All motors smaller than 3/4 HP shall be self-lubricating. C. Motors shall be protected with thermal overload devices in the motor, or by the motor starter. d. Motors which are required to operate in conjunction with variable frequency drives shall be specifically rated for such application. e. Single phase motors 1/2 HP and smaller shall have built-in overload protection; over 1/2 HP shall have motor starters as overload protection. f. Single Phase motors shall be capacitor start, capacitor run. CEA#18010 HEATING,VENTILATING AND AIR CONDITIONING (HVAC) 23 00 00-7 COPYRIGHT©2018 CONSULTING ENGINEERING ASSOCIATES, INC.