COMPLIANCE INFO - Laserfiche WebLink

Home Browse Search

FOOD SERVICE EQUIPMENT Section 11400 4. The system shall be provided with a weather cover and mounting channel unit and shall be completely treated with a rust preventative and two coats of baked enamel paint in color as selected by the Architect and where required shall be removable. 5. The condensing units shall be factory installed and factory wired to a common load center panel for one point field electrical connection. All wiring from the condensing units to the load center shall be through an electrical raceway. 6. The load center control panel shall be U.L listed and N.E.0 approved and weatherproof with individual breakers for each condensing unit and time clocks. All contractors, time clocks, relays, automatic starting switches and any necessary electrical components shall be installed with the load center panel. 7. All condensing units shall be manufactured by Copeland. 8. The system shall incorporate the following items: a. Flexible vibration eliminator in the suction line. b. Liquid line sight glass. c. Liquid line dehydrator filter of ample capacity. d. Suction line filter of ample capacity. e. Thermal expansion valve for evaporator. f. Heat exchanger for evaporator. g. Refrigeration lines, hard copper Type"L"with "Silfos" brazed joints. h. Defrost timers and interlock relays as required. I. Winter control package. 10. Circuit breakers, automatic starting switch, motor protectors and pressure limit switches, all enclosed with interconnecting wires installed in a control panel ready for final connection by the Electrical Contractor. 11. Drain line heaters with insulated covers for all drain lines from unit evaporators to nearest indirect waste (floor sink). 12. Start-up, adjustment, and one year parts and labor warranty. Five year warranty on motor compressors. I. Refrigeration Piping: 1. Copper tubing shall conform to ASTM B88, piping shall be type'L'ARC, refrigerant piping shall be exposed to view as required by the American Standard Safety Code for Mechanical Refrigeration. 2. Suction lines shall be sized to give a minimum pressure drop from evaporator to machine of 2 lbs. For high temperature systems and 1 lbs. for low temperature systems and shall allow gas velocities of not less that 750 FPM in horizontal runs and 1500 FPM in vertical risers. Liquid lines shall be sized to give maximum pressure drop of 3 lbs. from receiver to evaporator. 3. Tubing shall be graded to prevent trapping of oil. 4. Refrigerant piping shall be properly secured with 'Uni-Strut' clamps located to conform to proper refrigerant piping practice. 5. Insulation of refrigerant lines : 6. Refrigerant suction lines outside of refrigerated compartments, not run in conduit shall be insulated with Armstrong FR/ARMAFLEX22. Minimum thickness of 1/2" for medium temperatures and%"for low temperature units. Slitting of insulation shall not be permitted. N. Testing and Dehydrating: 1. Pressurized systems with nitrogen to 300 PSI, test for leaks, after with each Valentine M. Peyton Elementary School 13 Job No. 2749