NORTHWIND 1OOOUR-2 BLAST CHILLER

Bally's Northwind 1000UR gives you the power of world-class Northwind blast-chilling technology in a big, high-volume package. It accommodates any upright kitchen racks, so you can roll in any rack you use in your ovens or walk-in refrigerators. Outside dimensions are 6'9�" x 7'9" x 8'2" (2070mm x 2362mm x 2489mm). Interior clearance envelope (cart area) is 36" x 68" x 78" (914.4mm x 1727.2mm x 1981.2mm) high. Operating orientation program by a registered dietitian is an optional extra.

NORTHWIND 1OOOUR-2 BLAST CHILLER
Specifications:

1. Scope - These specifications cover Northwind 1000UR blast chiller and storage rooms, mechanical refrigeration systems, and related equipment and accessories.

2. Manufacturer's Installation Instructions - Contractor shall furnish to owner instructions detailing assembly of the blast chiller, installation of refrigeration equipment, wiring diagrams, operating and maintenance instructions, and other data pertaining to the proper upkeep and operation of the chiller. Installation, start-up and testing shall be carried out with the approval of the architect, in accordance with the equipment manufacturer's published instructions.

3. Regulations and Codes - All work and materials shall be in full accordance with local and/or state ordinances, and with any other prevailing rules and regulations regarding potentially hazardous equipment or locations. Bally Refrigerated Boxes, Inc. is not responsible for furnishing items required by the regulations but not specified or shown on the drawings or contained in the specifications.

4. 10-year Warranty - The manufacturer shall warrant that any part of the structure manufactured by Bally except the refrigeration system and its related accessories is free from defects in materials and workmanship under normal use and service. The manufacturer shall be obligated to repair or replace any part of this equipment covered by the warranty which proves to be defective within the period of ten years from the date of original installation. The warranty shall not apply to equipment which has been subjected to any accident, alteration, abuse, misuse or improper installation, and shall not include any labor charges for the placement and repair of defective parts or refrigeration. Refrigeration equipment is warranted for five years, electronic controls for one year.

5. General - Sectional blast chillers complete with hinged entrance doors shall be manufactured by Bally Refrigerated Boxes, Inc. Panels used to assemble these structures shall be listed by Factory Mutual and Underwriters Laboratories and shall carry labels indicating all such listings or approvals. Enclosure shall measure 6'9�" x 7'9" x 8'2" (2070mm x 2362mm x 2489mm) high. Inside floor of chiller shall be building floor, not manufacturer's panelized construction. Production capacity of the chiller shall be 500 pounds (227 kgs.) of product through the temperatures between 140�F/60�C and 45�F/7.2�C in 75 to 125 minutes. (Speed of chilling depends on several variables, including food product's density, moisture content, specific heat and containerization.) Net capacity at 90�F/32�C ambient temperature (105�F/40��C condensing temperature for water-cooled) shall be 58,360 Btu/hr (air-cooled) or 58,800 Btu/hr (water-cooled) in the quick-chill cycle and 32,100 Btu/hr (air-cooled) or 28,800 Btu/hr (water-cooled) in the deep-chill cycle.

A. Individual panels shall be certified by Underwriters Laboratories as having flame spread of 25 or lower and smoke generation of 450 or lower when tested in accordance with ASTME-84-76. They shall also be approved by Factory Mutual as a Class I building type.

B. Panels shall consist of interior and exterior metal skins precisely formed with steel dies and roll-form equipment and thoroughly checked with gauges for accuracy. The metal skins shall be placed into steel molds and liquid urethane injected between them. CFC-free urethane cores shall be foamed-in-place (poured, not frothed) and shall be completely heat cured to bind tenaciously to the metal skins, forming a rigid 4" (101.6mm) thick insulated panel. Panels shall be insulated with 100 percent urethane and have no internal metal structural members between the skins. To ensure tight joints, panel edges must have foamed-in-place tongues and grooves with a flexible vinyl gasket also foamed-in-place on interior and exterior of all tongue edges. Gaskets shall be resistant to damage from oil, fats, water, detergents and sunlight, and must be NSF approved.

C. Panels shall be equipped with Bally Speed-Lok joining devices. Each locking device shall consist of a cam-action locking arm of a replaceable type placed in one panel, and a steel rod precisely positioned in the adjoining panel, so that when the locking arm is rotated, the hook engages over the rod and draws the panels tightly together. Press-fit caps shall be provided to close wrench holes. The required locking wrench shall be supplied with the chiller enclosure.

D. Plenum - A sheet-metal plenum with necessary fasteners shall be furnished by the manufacturer The ceiling plenum shall include a fluorescent light fixture.

8. Doors - The hinged walk-in door shall be an infitting, flushmounted type measuring 36" x 78" (914.4mm x 1981.2mm), meeting the requirements of the 1992 Americans with Disabilities Act. It shall be a right-hand or left-hand swinging Bally door with observation window, three hinges, and deck-plate protection on lower part of door frame shall include interior steel support and door shall also include an inside safety release handle to prevent any person from being locked inside. Construction of both panel and door is generally as stated above.

9. Mechanical Refrigeration (General) - The refrigeration system shall be supplied by Bally Refrigerated Boxes, Inc. (the standard product of a single manufacturer) and shall be catalogued as a system complete with system capacities. All components, including controls and accessories, shall be furnished by the system manufacturer. The components shall include a fully piped, air-cooled or water-cooled condensing unit (as described below) and evaporator (as described below). Refrigeration system capacity and horsepower rating shall be as described in the refrigeration schedule on the plan.

A. Condensing Unit - The condensing unit shall include two 3- hp motor compressor, 2-circuit condenser, two receivers, and electrical control panel components assembled, piped and wired by the manufacturer. Motor compressors shall be of the accessible hermetic type, with inherent overload protection (three-leg on three-phase) for Bally systems. Coil shall be similar in construction to that described in section (B). Fan motors shall have inherent overload protectors. Fan blades must be guarded to prevent injury. Accessories include moisture-liquid indicators and suction and discharge vibration eliminators. Electrical controls, installed by the system manufacturer, shall include high-low pressure control switches and magnetic contactors. Fan cycle controls and crankcase heaters shall be installed on the condensing unit to maintain desired condensing pressure and protect the compressors from liquid migration when ambient temperatures are below 55�F/12.7�C. A weatherproof hood shall be factory fabricated and installed (air-cooled only).

B. Evaporator - The coil shall have copper tubes expanded into aluminum fins. The housing shall be of aluminum. Electric defrost shall be used. Selection and wiring of all defrost controls shall be the sole responsibility of the system manufacturer Coil shall include thermostatic expansion valves, filter-dryers, and liquid-line solenoid valves.

C. Control Panel - Manufacturer shall provide a factory-installed and wired controller to permit selection of functions by the operator. The automatic chill mode shall rely on a sensor probe suitable for insertion into the product to automatically select the proper chill cycle (quick chill, 37�F/2.7�C; deep chill, 5�F/-15�C). Chill temperatures shall be automatically controlled by electronic controllers. Upon completion of the deep-chill cycle, the controller shall automatically revert to the hold mode (37�F/2.7�C). A manual chill mode shall be provided as an alternate means of chilling product when probe insertion is not practical. The manual chill mode shall rely on an electronic built-in timer with a user-selectable setting range. The timer shall enable the user to select the duration of the deep chill cycle (5�F/-15�C). Upon completion of the manually set deep-chill cycle, the timer shall automatically cause the chiller to return to the quick-chill/hold mode.

A. Interconnecting accessories shall be installed in accordance with the manufacturers' recommendations and shall be located for ease of servicing. Piping shall be placed in accordance with good engineering practice. Particular attention shall be given to oil return, gas velocities, refrigerant pressure drops and neatness.

B. Copper tubing for use in refrigerant piping shall conform to applicable ASTM standard specifications (serial designation B.88). All tubing shall be type "L" hard-drawn copper.

C. Each system shall be triple1,500 and 500 microns of vacuum shall be drawn successively, and broken with dry refrigerant. After the third evacuation, the system shall be charged.

D. Suction line insulation shall be sized and installed according to the insulation manufacturer's recommendations to prevent suction line condensation.

E. Penetrations shall be sealed with non-hardening caulking compound. Exposed ends of the penetration must be trimmed.

F. Placement of all exposed pipes shall be approved by the architect before installation.

11. Pre-assembled Remote Refrigeration Equipment -
Refrigeration equipment shall be a Bally system designed for remote installation, for use with R-22 refrigerant. Manufacturer shall provide equipment including all necessary components factory installed on both evaporator and condensing unit assemblies. All components shall be pre-wired, so that job site work is limited to making electrical and tubing connections between the assemblies and supplying electrical power. All necessary electrical wire, conduit and fittings, and all refrigeration tubing, fittings and insulation shall be furnished by the refrigeration and electrical contractors. Equipment shall be fully automatic in operation, and shall conform to the following minimal requirements:

A. Condensing Unit The condensing unit shall be provided complete with motor/compressors, air-cooled (or water-cooled) condenser, receivers and all other necessary components mounted on a common base. The compressors shall be of the accessible hermetic type. The unit shall be designed for chill operation at the specified temperature, in a 90�F (32.2�C) ambient temperature.

B. Evaporator - The evaporator shall be of the forced convection type, designed specifically for blast chiller operation, instead of the unit cooler type. Air circulating motors, multi-fin and tube-type coil, and fan guards shall be assembled within a protective housing. The liquid-line solenoid valves, thermostatic expansion valves, and inlet and outlet connections, shall also be contained in this housing. The entire evaporator assembly shall be readily accessible for cleaning. A drip pan and drain connection shall be provided. Removable air inlet filters shall be provided. A manual system for defrosting the evaporator, including heaters and safety thermostats, shall be supplied.

12. Materials Supplied by Others - Because requirements vary with individual site locations and local regulations, review and approval of all plans must be the responsibility of an engineer familiar with the installation.

13. Specify by Name - To ensure that specifications prepared from this guide will be complied with fully, include the following paragraph:

The blast chiller shall be as manufactured by BallyRefrigerated Boxes, Inc.

To protect the client's interests, no substitutions will be accepted unless by specific approval.

In line with our program of constantly striving for improvement in design, we reserve the right to change specifications without notice.

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