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FOOD SERVICE EQUIPMENT Section 11400 15-1207 Remote refrigeration systems as manufactured by Cooltec Refrigeration Corp. Custom Multi -Circuited refrigeration package shall be furnished as complete refrigeration systems to service walk-in freezer Item No. 2 and walk-in refrigerator Item No. 3 as shown. Contractor shall furnish and install, where shown on plans, U.L." Air-cooled Remote Refrigeration Package as shown on drawings. Refrigeration system shall be housed in a weather protected enclosure. The frame, enclosure, and panels shall be fabricated of galvanized steel. Entire frame shall be pre -assembled, welded, cleaned, and painted with a prime coat of zinc chromate then finished with a coat of baked enamel epoxy based paint. The condenser shall be sectional, removable multi -circuited with rifled tube slotted finned and shall be designed for 201FTD. Condenser fan motors shall be mounted on the top of the enclosure. 1. REFRIGERATION UNITS A. Air-cooled condensing units shall be hermetic/glacier scroll type (Copeland). Each unit shall be equipped with high -low pressure control, liquid drier, sight glass & head pressure control, time clocks and pump down solenoids. B. All compressor units shall be new factory assembled to operate with the refrigerant specified in the engineering summary sheet. Refrigerant R - 404a shall be used on all commercial temperature units and low temperature units. 2. PRE -PIPING A. All refrigerant lines shall be extended to right side of the package in a neat and orderly manner. Suction lines must be insulated with Armaflex (1" thick forlow temp, 3/4" thick for medium temp). B. All tubing shall be securely supported and anchored with clamps. C. Silver solder and/or sil-fos shall be used for all refrigerant piping. Soft solder is not acceptable. D. All piping to be pressure tested with nitrogen at 300 PSI. After the condensing unit and coil have been connected, the balance of the system shall be leak tested with all valves open. 3. CONTROL PANEL A. The package shall have factory mounted and pre -wired control panel complete with main disconnect breaker switch, compressor circuit breakers, fuses, contactors and time clocks wired for single point connection. B. Electrical contractor shall provide and install main power lines to panel and provide wire harness wiring for control and defrost heater between and the defrost clock and the refrigerant fixtures, all in accordance with the wiring diagram and local codes. 23