Liquid temperature control equipment.

ADVANTAGE ENGINEERING, INC.

Offers fluid-circulating equipment for molding, extrusion, and thermoforming:

Chillers in portable and plantwide central systems. Portable chillers range from 1- to 30-ton cooling capacity in air- and water-condensed designs. Central chillers range from 10 to 500 tons in air-and water-condensed outdoor and indoor systems.

Mold-temperature controllers in water- or oil-circulating systems. Water units operate between 30 F and 250 F; oil units between 100 F and 500 F.

Cooling tower systems from 20- to 1000-ton capacity. Metal and fiberglass tower cells offered. Related pumping equipment can be custom-designed. Open- and

closed-loop designs are standard. Engineering services included with central cooling systems. Equipment can be computer-connected for remote control and information collection and storage in molding cell or plant system.

AEC/APPLICATION ENGINEERING

Offers standard series of water temperature-control units with 3/4- to 10-hp pumps and standard heater selection from 9 through 24 kw, featuring stain-less-steel sheath construction. Equipment has microprocessor control with easy-to-read LED, dual-temperature display of setpoint and process temperature; optional SPI communication protocol for CIM and SPC applications; and full-feature graphic display panel showing operator status and alarm indication lights. Packaged in a low-profile cabinet designed for stacking and ease of maintenance. Standard options include negative/positive-pressure units, system water-purge, and closed-loop heat exchanger for high-temperature heat-transfer fluids or hard-water areas.

TDW-M True Temp series features small footprint and serviceable two-piece cabinet design with hinged electrical panel and operator interface. Compactly designed 9- and 12-kw direct-injection water units include field-proven NX series microprocessor controls with graphic panel and easy-to-read display. "Crash Cool" feature standard for accelerated cooling. Optional motorized modulating valve gives high accuracy under varying loads, helps reduce water hammer.

TDH series hot-oil unit designed for high temperature heating and cooling applications from 100 F to 550 F. Self-contained units offer optional "U" type heat exchanger, which withstands thermal shock. Standard microprocessor temperature control accurate to 1[degree]F.

Also builds line of portable air- and water-cooled chillers from 1 through 40 hp; and central systems in both air-and water-cooled configurations from 15 through 155 tons. On 15-hp units and larger, Discus compressors are standard to help optimize energy efficiency.

New DDW series direct-drive central chillers in models rated from 42 to 159 tons feature direct-drive open compressors coupled to industrial grade motors. Units use 15-20% less energy at 100% load when compared to chillers with semi-hermetic compressors.

Space-saving Porta-Kool II chiller line with small footprint available in air- and water-cooled models from 2 to 10 tons. Construction features include serviceable cabinet design, 30-gal noncorrosive polyethylene reservoir and nonferrous piping. Standard NX series microprocessor controls are accurate to [+ or -]1[degree] F with dual LED display of setpoint and supply temperature. Cooling tower systems for condenser and molding machine hydraulics come in Polymer Tower forced-draft and fiberglass induced-draft models from 30 to 200 tons.

AFFINITY INC.

Manufactures compact, high-cooling-capacity chillers with standard remote control. F-Series ranges from 10,000 to 170,600 Btu/hr, achieves [+ or -]1[degree] F stability, and gives unrestricted access to all components, which reduces service time. Features include a nonferrous coolant loop, no-flow and low-level alarms, hot-gas bypass for long compressor life, high/low-temperature alarms, and high-capacity heat exchanger for high heat-transfer efficiency. Digital readout (C or F) microprocessor is fully programmable for features such as ramp-to-setpoint to prevent thermal shock. Floor space is saved because F-Series is typically 30% smaller than other chillers.

ALPHA EQUIPMENT CO.

Product line includes:

* Portable chillers, water and air condensed, from 2 to 40 hp.

* Central chiller systems, water and air condensed, from 20 to 120 hp.

* Dehumidification/air-conditioning systems for plant or molding-room application, water and air condensed, from 10 to 60 hp.

* Cooling-tower systems engineered from 4 to 1200 tons.

* Cooling-tower cells in fiberglass-reinforced polyester from 7 to 1000 tons. Galvanized from 6 to 1000 tons.

* Water-filtration systems for cooling-tower water and glycol chilled-water

system.

* Automatic water-treatment systems to work with cooling-tower system.

* Liquid temperature controllers, open- and closed-circuit systems, single- and dual-zone units.

ALPINE INDUSTRIES, INC.

Water-chilling systems include:

* Industrial Open-Drive Chillers with compressors that eliminate motor burn-out, costly clean-ups or extended down-time; energy-efficiency ratios (EER) of 16 or more; built-in capacity control in response to suction pressure; positive unloaded start for reduced in-rush power needs. Extra-quiet models and explosion-proof options available.

* Model AMA portable air-cooled water chillers assembled on a sturdy steel frame and heavy-duty casters for mobility. Features high-efficiency hermetic or semi-hermetic compressor, fully insulated chiller, air-cooled condenser, insulated water reservoir, process pump, solid-state temperature controller with readout, built-in freeze-stat, function lights, pressure gauges, and operating and safety controls. Custom options include JIC, NEMA-12 or explosion-proof electricals, automatic alarm system, hot-gas bypass, capacity control or energy-saver, two-speed capacity modulator, dual pumps, heat recovery, glycol low-temperature units, and chilled-water flow switch.

* Model AMW portable water-cooled water chillers are similar in construction to Model AMA, with water-cooled instead of air-cooled condensers. Complete units are available with all Model AMA standard and optional features.

AMCOT COOLING TOWER CO.

Offers counterflow and crossflow low-noise cooling towers, and a high-temperature cooling tower with cooling capacity of 212 F. Units incorporate an induced-draft counterflow design with axial flow fan mounted on top of tower for drafting air out. Low internal pressure loss and bottle-shaped design reportedly ensure optimum efficiency and space economy. Casing is made of non-rusting fiberglass-reinforced polyester (FRP), a high-structural-strength material that helps protect against impact damage and cracking. Fill material is honeycomb heat-embossed PVC formed to permit high heat transfer for optimum efficiency and maximum air-to-water contact.

AMERICAN JET STREAM, INC.

Offers beside-the-press, closed-cycle, automatic water chillers from 12,000 to 240,000 Btu/hr. RF coolers use anti-freeze mixture consisting of water and ethylene glycol.

APPLICATION ENGINEERING

See AEC/Application Engineering.

APPLIED PROCESS EQUIPMENT

Provides water-chilling, water-cooling, water-recovery, and water-filtration systems. Included are portable,central and heat-pump water chillers in water- or air-cooled versions. Central cooling-tower systems available in both open and closed systems. Closed systems available with plate-and-frame stainless heat exchangers. All systems come with complete engineering drawings for economical local installation, warranted for a full year on parts and labor.

AQUATEMP INC.

Builds chilled-water systems, air- and water-cooled chillers from 1.5 to 300 tons, water towers, sand and gravel filters, pumps, etc.

BALTIMORE AIRCOIL CO.

Offers evaporative cooling equipment, including cooling towers in crossflow and counterflow configuration, with factory-assembled modular units to 2110 tons/32 million Btu/hr, and field-erected towers to 25,000 gpm/ cell; and evaporative condensers, industrial fluid coolers, heat exchangers, and thermal-storage units.

Factory-assembled equipment available in hot-tip galvanized steel, fiber-glass or stainless steel. Field-erected models constructed of wood, steel, concrete or pultruded structural composite materials. Heat exchangers come in plate-and-frame and shell-and-tube configurations.

BERG CHILLING SYSTEMS INC.

Cooling equipment includes central systems equipped with semi-hermetic, open drive, or screw compressor, featuring microprocessor controls; air-cooled units with heat recovery; water-cooled units with "free cooling"; clean-water tower systems; pre-packaged mezzanine systems; portable chillers; blown-film coolers; temperature-control units; mold-area dehumidifiers; chemical-treatment packages; and water-filtration systems.

Noncorrosive fiberglass towers feature low-hp motors and structural-steel bases.

BUDZAR INDUSTRIES, INC.

Manufactures line of chillers, hot-water and hot-oil mold-temperature controllers, cooling towers, and pump-tank sets.

Ice line of chillers covers range of styles, featuring self-contained, mid-sized units with refrigeration and water circuits piped and wired, from 13 to 35 tons.

The 7- and 10-ton air-cooled line of portable chillers uses blowers instead of prop fans to move air through condenser coils, allowing use of ducting to control flow of heated air that exits unit. Ranging from 3 to 15 tons, units available in both air- and water-cooled configurations.

Central chillers feature dual-refrigeration circuits, easily serviceable electricals, and full-unit frames for component protection.

Cooling towers available in standard galvanized and FRP configurations from 5 to 175 tons, as well as larger sizes and multiple configurations.

Pump-tank assemblies, sized to flow requirements of each chiller or cooling tower, feature tank covers, pre-wired electrical enclosures and alarms, as well as standby pumps and custom configurations.

Cooling towers in capacities from 20 to 200 tons. Design incorporates three separate methods of temperature control for more precise process-water temperature. Towers matched with pump-tank sets to provide maximum circulation and temperature control.

Mold-temperature controllers available in single- and multizone configurations for temperature control to 250 F. Units feature low-watt-density heaters and microprocessor-based temperature controllers.

BTU products cover a variety of water and oil temperature controllers for temperatures to 650 F. Available in single-or multiple-zone configurations, and direct-injection and closed-loop arrangements.

CHROMALOX EDWIN L. WIEGAND DIV.

Offers WTCS portable mold-temperature control system in a compact 15 x 24 x 25 in. package. Delivers water at temperatures to 250 F in ratings from 4.5 to 24 kw and open- or closed-loop piping, depending on mineral content of water.

For injection molding and other plastics applications, WTCS system incorporates a 3/4-hp centrifugal pump capable of flow rates of 30 gpm. For maximum reliability, system features automatic air bleed, low-pressure switch, over-temperature protection, pressure-relief valve, and microprocessor controls with easy-to-read digital display and high/low-temperature alarms.

CINCINNATI MILACRON U.S. PLASTICS MACHINERY DIV.

Portable chillers range from 1- to 30-ton and have solid-state or microprocessor-based controls. Central chillers and central chiller modules offer water-cooling capacity of 5 to 180 tons in water-cooled configuration and air-cooled capacity of 5 to 30 tons.

Evaporative cooling tower cells assembled up to 175 tons; larger units available. Pump-tank sets in basic or full-feature design with diagnostics and standby pumping supplied with cells.

ATC series is a combination closed-system unit with 30-60 F cold-water circuit and a hot-water circuit at 250 F.

Mold-temperature controllers for water and oil range from 15 to 100 gpm. Water units have closed or open cooling with solid-state or microprocessor-based controls. Oil units include microprocessor controls and can be supplied with an optional cooling circuit.

CONAIR TEMPRO THE CONAIR GROUP, INC.

Water-temperature controllers in the Thermolator series offer a selection of control sophistication and exclusive two-piece casting that eliminates up to 40 leak-prone fittings of conventional controllers.

Models with tempTrac solid-state controls are single-zone, direct-injection units with pump sizes from 0.75 to 7.5 hp and 9 to 24 kw.

Thermolators with microTrac 2 and microTrac 3 microprocessor controls come in single- or dual-zone, direct-injection models with 9- to 24-kw heating, and single- or dual-zone, closed-circuit models with 9- or 12-kw heating. Higher kw heating is available for closed-circuit models. Pump sizes range from 0.75 to 7.5 hp.

Ultra-performance pump, standard on microTrac 3, is optional for all Thermolators. It can increase pump performance by up to 50% for improved cooling capacity.

Forty-two microKool portable chiller models range from 3.25 to 40 hp in air- and water-cooled designs, with a choice of two microprocessor controllers. Line includes microKool mini chillers from 1.5 to 5 hp in air- or water-cooled configurations.

Central chiller line includes outdoor, air-cooled packages from 20- to 150-ton capacities in single-, dual- and multiple-compressor designs. Indoor water-cooled, central units from 10 through 120 tons have single or dual compressors. The microTrac 3 control is standard, as is Copeland, semi-hermetic, discus compressor.

Pump-tank assemblies for central systems include 180- to 1100-gal roto-molded PE tanks or epoxy-lined steel or stainless,steel reservoirs from 400 to 4000 gal. Pumps from 1.5 through 100 hp are custom matched to system requirements.

Cooling towers come in capacities from 10 to 500 tons or larger. Heavy-duty, multimedia bypass filters available.

COOLING TECHNOLOGY, INC.

Offers air- and water-cooled chillers, temperature-control units and cooling tower systems.

Chiller line includes Mini-Portable (1 to 10 tons), Portable (5 to 40 tons), Multi Circuited (20 to 140 tons) and Direct-Drive (30 to 200 tons). Cooling-tower systems range from 10 to 500 tons and can be supplied with metal or fiberglass tower cells. Temperature-control units available in sizes from 3/4 to 15 hp.

Company has developed a chiller specifically for extrusion applications and also has a patent pending on a Direct Freon Injection unit designed to reduce cycle time on hard-to-cool molds.

DELTA COOLING TOWERS, INC.

Offers polyethylene noncorrosive cooling towers.

Pioneer cooling tower and Paragon induced-draft cooling tower are constructed of industrial-grade materials for low maintenance costs over the life of the equipment. Units are modular, pre-assembled and lightweight for simple, fast and economical installation, plus easy future upgrades.

Integrated equipment packages with automatic process controls completely pre-assembled, pre-wired, pre-piped and skid-mounted, if required.

DELTA T SYSTEMS, INC.

Offers water- and oil-circulating temperature-control equipment in single- and multiple-zone construction, direct injection or closed circuit, compact and upright styles. Choice of controllers and options include RS232, RS422, RS485, SPI Protocol, special alarms, electrics, JIC, NEMA, explosion-proof, etc.

Hot-oil systems available to 650 F in single- and dual-zone construction with heater sizes ranging from 12 to 300 kw. Flow rates range from 10 gpm through 300 gpm, using positive-displacement pumps.

EDWARDS ENGINEERING CORP.

Offers liquid chillers in 30 models from 1/2 through 240 tons. Air-cooled or water-cooled units feature large stainless-steel reservoirs, as well as a walk-in weather-proof equipment enclosure, automatic capacity control from 0-100% with double-pump arrangement, and damage-resistant evaporator design if chiller freezes internally. Low-temperature (to -100 F) units also available.

Other features include automatic air elimination, automatic head-pressure control on outdoor air-cooled models, single central control panel, multiple indicating gauges, closed water system, inside or outside installation, and portable units with casters.

GC INDUSTRIES, INC.

Portable chillers are durable, compact and self-contained. Units are air- and water-cooled in 0.5 to 50 tons and provide coolant in the range of 20 F to 65 F. Hermetic and semi-hermetic designs available. Units have power-saving hot-gas bypass systems, noncorrosive stain-less-steel and copper heat exchangers, stainless-steel pumps and tanks. Air-condensing units have fully sized condensers to maintain capacity at high ambient temperatures. Water-condensing models have water-saving automatic regulating valve. Special low-temperature chillers come with capability of temperatures down to -40 F.

Central chillers are self-contained or split systems for interior or exterior installation, air- and water-cooled from 5 to 400 tons.

Cooling towers in sizes from 6 to 500 tons.

Tank and pump sets for central chillers and cooling towers are custom designed.

HAMILTON AVTEC INC.

Offers direct- or indirect-cooling liquid-temperature controllers with pump sizes from 1/2 to 3 hp and 3-12 kw heating. Control packages are solid-state or microprocessor controlled.

The 2000 series portable air- or water-cooled chillers in sizes from 2- to 35-ton chilling capacity include NEMA-rated components, solid-state temperature controllers, semi-hermetic compressors and hot-gas bypass.

Also process-water systems, including central chillers, pump tanks, and cooling towers. Heat-recovery systems available for recovering process heat and using it to supplement plant heat during winter.

IMS CO.

Offers circulators for mold-temperature control. All have easy-to-read gauges and easy service access to all components. Closed-circuit Water-Star and Temkon SS hot-water circulators have stainless-steel tanks. Water-Star units have four cooling options, including self-contained air cooling. HV65 hot-water circulators feature rust-resistant, stainless-steel and copper plumbing for direct cooling; proportional controller; and high- and low-pressure protection. Units convertible for vertical or horizontal use.

Model 6 oil-heating circulator has a maximum temperature of 400 F; Model 8,550 F.

Air-cooled chillers in 1/2-, 1-, 3- and 5-ton sizes are portable, require minimum maintenance, and are self-contained. Other sizes made to order.

INDUSTRIAL ENERGY CONSERVATION, INC.

Offers serf-contained air- and water-cooled chillers from 1/2 to 500 tons. Optional equipment includes pumps, tanks, and special materials of construction. Industrial-quality wiring is standard with optional JIC and hazardous-area wiring. Special control and instrumentation options also available.

KLEEN-RITE INC.

Offers recirculating water chillers that use a plate-type heat exchanger. A fluorocarbon refrigerant is on one side of the plate and water on the other side. Temperature changes reportedly can be accomplished in about 5 sec. Units available in 1- to 5-ton capacities for temperatures from 40 F to 110 F, and are controlled either by a remote bulb thermostat or electronically.

LOGIC DEVICES, INC.

Manufactures negative-pressure leak-steppers and negative/positive-pressure mold-temperature controllers for up to 400 F. Vac-U-Temp is a general-purpose temperature controller with negative- and positive-pressure modes, usable simultaneously. In addition to controlling temperatures, it stops leaks, improves part quality, and reduces cycle times. It uses water and other heat-transfer fluids.

Company has developed patented processes for venting molding gases into fluid lines and cooling long, thin cores by transferring water between mold halves through any size core. Free design consultation on mold venting and cooling is available.

MARVEL EQUIPMENT CORP.

Offers heating and cooling units for water or oil temperature control up to 655 F (water units to 285 F), for injection molds, extruders, rolls, storage tanks, presses, screws and other applications.

Mold-temperature control units manufactured by Regloplas AG of Switzerland. Optional RT-41 microprocessor control system, along with RS232C interface, makes it possible to connect to the process-control system of the production installation. RT-40, with serial interface, allows storage of parameters to 16 different users.

MATSUI AMERICA, INC.

Three series of water- or oil-circulating mold-temperature controllers offered.

MC Jet III series has a digital setting and indications of both setpoint and actual values, as well as delta-T. Entering and returning fluid temperature, or actual mold temperature can be displayed. Seven alarm LEDs, PID temperature control, and an electronic timer for auto-starting are provided. RS232C communications optional. Three models have motor drives from 0.33 to 1 hp and heater capacities from 3 to 8 kw, providing fluid temperatures up to 390 F.

More powerful MC Jet III-X units have enlarged pump capacities (1.5-2.9 hp). Ten models offer heater capacities from 8 to 10 kw for control up to 390 F.

MultiJet II combination hopper loader, dryer and mold-temperature controller in one compact, mobile cabinet incorporates one of three models of MCII water or oil mold-temperature controller, with 0.33-hp motor and 3-kw heater capacity for fluid temperatures to 320 F.

Eight models of MKC water-cooled chillers have FRP water tanks and open-type compressors. Pumps range from 0.5 to 2.9 hp.

MOKON DIV. PROTECTIVE CLOSURES CO.

Offers circulating water and oil temperature-control systems with a temperature range up to 600 F, portable chillers, and custom designed fluid-handling systems.

Water systems with a maximum operating temperature of 300 F and pumping capacities to 120 gpm and 60 psi available in cabineted and uncabineted series. Nonferrous construction ensures long service life and guards against corrosion. Combination heating/chilling unit provides temperature control from 35 F to 250 F, with up to 20 tons of chilling capacity.

Oil systems incorporate cool-oil reservoir that eliminates thermal shock associated with in-fine shell-and-tube heat-exchanger cooling. Available with up to three zones of independent control within the same cabinet and pumping capacities up to 30 gpm and 100 psi with maxi. operating temperature of 600 F.

Air- and water-cooled portable chillers range from 1/2 to 20 tons. Corrosion-free construction consists of nonferrous plumbing, stainless-steel supply pump and evaporator, and heavy-duty plastic reservoirs for extended life.

Solid-state or microprocessor controls standard on all systems. Optional microprocessor controls with serial communication, SPI protocol and computer interface capabilities available.

Specializes in custom temperature control systems and also carries Leak-master line of negative-pressure systems designed to eliminate processing problems associated with leaks.

OMEGA ENGINEERING INC.

Offers constant-temperature circulating baths, as well as full line of sensors, instrumentation, and hardware accessories to monitor and control water- and oil-circulating systems.

POLYSCIENCE

Manufactures liquid chillers and constant-temperature equipment Chillers available in variety of cooling capacities with several pump options. Temperature-control equipment available for process applications, as well as for small-scale laboratory and quality-control requirements. Units available with controller options from basic analog control to programmable controllers capable of RS232 interface for complex time/temperature profiling.

PROCESS EFFICIENCY PRODUCTS

Offers cooling and process-water filters. Using permanent filter media, system removes particles as small as 5 microns. Filter reduces fouling of cooling equipment, and maintains efficiency and low kw usage. Filtration improves quality of water, which eliminates draining and flushing of equipment, lower chemical cost, and prevents downtime.

PROGRESSIVE EQUIPMENT CORP.

Offers electronic water-treatment system that can include an electronic water treater, full-flow bag filter, and automatic blow-down valve. Treater removes scaling and fouling from pipes electronically without chemicals. As electronically treated water passes through system, existing scale is etched away, thus increasing system's cooling potential, which reportedly can yield longer equipment life, decrease downtime, and improve operating efficiency. High-capacity, full-flow bag filter works in conjunction with treater. Bag filters offer an alternative to bulky "Y" strainers and sand-and-gravel filters; according to company, they offer full-flow filtration at a reasonable cost and reduce downtime, conserve water, and are dean and easy to operate. Sentinel pressure-drop alert system detects pressure drops across filter media as low as 3-5 psi. Ozone and/or ultraviolet used as part of nonchemical water-treatment package when applicable. Complete turnkey engineering, equipment and installation service offered.

PROTEC COOLING TOWERS, INC.

Offers fiberglass cooling towers from 5 to 1000 tons. Round bottle-type shape with 360[degrees] air intake reduces air resistance. Materials are lightweight and corrosion-free for easy installation, longevity and low maintenance. Company's V25 fill is made of flame-retardant rigid film with high-heat-exchange efficiency. It assures uniform distribution of water with minimum resistance to air flow.

QUALITY PROCESS CONTROL SYSTEMS INC.

Manufactures portable chillers, and water- and oil-circulating units. Custom systems provided.

Air- and water-condensing portable chillers from 1 through 15 tons with hermetic and semi-hermetic compressors available. All-copper, insulated piping, insulated steel reservoirs, hot-gas bypass, and stainless/copper heat exchangers are standard.

Line of compact and upright, single-and multiple-zoned, water-circulating units are either digitally or microprocessor-controlled. Features include horizontal pump with seal flush, flanged, vertically mounted, low-watt-density immersion heaters; internal bypass; turbulent flow; and hinged access panels.

Single- or multiple-zoned, high-temperature, oil-circulating units are digitally or microprocessor-controlled. Centrifugal pumps with seal cooling are standard. Low-watt density, flanged immersion heaters, hinged access panels, over-temperature safety, internal bypass, process shut-off valves, pressure gauge, and function lights are standard.

REGLOPLAS AG

See Marvel Equipment Corp.

RITE-TEMP MANUFACTURING

Offers line of refrigerated water chillers in four designs with ratings of two through 20 tons. Both air- and water-cooled units have standard 40-gal stainless-steel dosed evaporator tank. Additional features include portable units, indicating gauges, indoor or outdoor installation and user-friendly controls. Special controls, instrumentation or electrical options available.

R.J. INDUSTRIES, INC.

Offers replacement water and hot-oil pumps to fit most brands of chillers, mold-temperature controllers, cooling towers, and various water-cooling systems. Pumps match up exactly and are sold under brand names such as Scot, Burks, Aurora, Sherwood, B&G, Price, and Worthington. A cross-reference of OEM pumps has been compiled to permit quick identification of replacement seal kits and other parts. Obsolete and discontinued models have also been cross-referenced to presently available replacements.

SCHREIBER ENGINEERING CORP.

Full line of air- and water-cooled chillers ranges from 1/2 to 20 tons features water systems designed for unrestricted circulation and proper turbulence in the heat exchanger; elimination of the use of anti-freeze; extra-large stainless-steel, noncontaminating reservoirs; Tecumseh compressors; polyester powder coating for long life; and conventional fittings, parts, and motors for easy replacement.

A 7 1/2-ton, 90,000-Btu unit has a tilted control panel for easier operation, cycles on/off as needed, uses no hot-gas bypass, and has "contamination-free" bronze water pumps.

STERLCO DIV. STERLING, INC.

Manufactures water- and oil-circulating temperature-control units. Each system features its own circulating pump, thermostat and operating controls. Can be supplied in operator-height vertical cabinets or low-profile compact cabinets. Customized engineered systems supplied.

The 9300/9400 series of water-circulating temperature-control units covers temperature ranges from water supply temperature to as high as 300 F, when adequate water supply pressure is available. Standard unit features a 9-kw, low-watt-density, copper-sheathed heater with pumping capacities from 1/2 through 5 hp. Optional heaters to 24 kw available in standard cabinet design. Units can be manufactured in single-, dual- or three-zone construction and feature common electrical and water-supply connections. They can be supplied with either a microprocessor-based or solid-state digital controller. Options include computer-interface capability (RS232, RS422, RS485, SPI Protocol), special alarms, JIG/ NEMA-12 construction, nonferrous plumbing, and special power requirements. Each system features dual 1000-ohm platinum RTD sensing probes, low-watt-density heaters with copper-sheathed elements that provide thermal conductivity, half- and full-heat capability, variable timed cooling (VTC), specially engineered "Sterlseal" pump seal that minimizes downtime, and high-technology controllers.

The 3300/3400 series temperature-control units provides the same features and capability as the 9300/9400 series. Units also include advanced electrical-protection package and meet NEC (National Electrical Code) standards.

High-temperature-control systems cover temperatures to 650 F. Heater sizes range from 6 to 300 kw with pumping capacities from 10 to 600 gpm. Low-watt-density heaters, heavy-duty positive-displacement circulating pumps, push-button controls, and safety components are standard. Additionally, an automatically controlled cooling feature is offered, which utilizes a specially constructed heat exchanger. Units available in single- and dual-zone construction and can be provided with a variety of controllers. NEMA-12 construction is standard in 550 F systems.

STERLCOOL DIV. STERLING, INC.

Manufactures portable chillers, as well as central chillers, cooling towers, pump tanks, and water-filtration equipment, with installation and startup assistance.

Portable chillers come in air- and water-cooled models from 1- to 30-hp. Units supply chilled water from 0 F to 75 F in a variety of flows and pressures, using single- and dual-pump systems. Features include full PID autotuned microprocessor controls; 40-gal insulated, integral reservoir; centrifugal recirculating pumps to 11/2 hp; nonferrous reservoir and internal piping, and semi-hermetic Copeland "discus" compressors on units of 15-hp and larger; hot-gas bypass capacity control accurate to [+ or -]1[degree] F; shell-and-tube evaporators, cleanable shell-and-tube condensers on water-cooled models; and high-efficiency fin-and-tube condensers on air-cooled models.

Air- and water-cooled central chilling systems to 300 tons, cooling towers to 900 tons, pumps, pump tanks, and water filtration systems available.

TEMPTEK, INC.

Manufactures mold-temperature controllers, portable chillers, pump-tank stations and cooling-tower cells. Fluid circulating temperature-control products are designed for mechanical simplicity and operator convenience, utilizing "ultra-rugged" construction, fewer components, and standardized production.

Temperature controllers available in both water and hot-oil open- and closed-loop configurations. Water units control to 250 F, oil-circulating units to 400 F. Small, space-efficient units equipped with high-flow pumps, flanged heaters, and advanced electronic instrumentation with remote capabilities.

Portable chillers and chilling modules available in air- and water-condensed versions. Units range from 1 to 20 tons with operating temperatures from 30 to 70 F. Chilling modules range from 5 to 30 tons with operating temperatures from 20 to 60 F.

Pump-tank stations designed to utilize minimum floor space, while emphasizing vertical dimension for water storage. Standard process connections for pumps, sensors, drains, and water-level controls simplify installation.

Cooling towers in galvanized metal or fiberglass construction from 10 to 480 tons employ energy-efficient prop fans, generous wet decks, and large water reservoir.

THERMAL CARE/MAYER

Portable chillers in self-contained air-or water-cooled designs from 1/2 to 40 tons feature accessible cabinet design, hinged control panel and microprocessor controls with dual-digital displays, seven positive-action switches, and 19 diagnostic lights.

Air-cooled central chillers with heat-reclaim indoor units or low-ambient protected outdoor units in capacities to 200 tons.

Water-cooled central chillers in three compressor configurations: 1) TPW economical plantwide systems from 20 to 130 tons featuring serviceable semi-hermetic compressors and two or more independent refrigeration circuits for precise temperature and capacity control; 2) TCCW energy-efficient design featuring direct-drive compressor systems with ambient-air-cooled industrial T-Frame motors and capacities from 35 to 170 tons; and 3) WN units featuring open-type, belt-drive, slow-speed compressor for dependability.

Fiberglass cooling towers in two design series from 3 to 850 tons for flexibility in meeting difficult installation conditions. FC and FT series feature high-efficiency induced-draft design and strong, lightweight FRP shell, which stands up to corrosion.

Pump/reservoir assemblies custom engineered in any size and configuration for tower or chiller applications. Systems feature 1/4-in. double-welded steel construction, solid pump decks, and premounted, prewired control panels.

Water-treatment systems designed to control scale, corrosion, suspended solids and microbiological growth.

Temperature-control units available in a complete range of pumping, heating, and cooling configurations for oil and water from 1/2 to 7 1/2 hp, 3 to 24 kw. Standard features include twin tank/ pump, unitized cast construction, microprocessor with dual digital displays, seven positive-action switches, 15 diagnostic lights, and more.

T.U.C. INC.

Manufactures liquid-circulating temperature-control equipment, including water and hot-oil temperature controllers, and portable chillers.

Water units come in upright, low-profile and subcompact configurations. Controllers are digital or microprocessor-based. Microprocessor unit has RS232C, RS422 and RS485 capability. Dual-probe sensing, solid-state control and horizontal pumps with seal flush make units simple to operate. Single- and multizone models with optional features available.

Hot-oil systems range in temperature from 100 F to 500 F and heater capacities from 6 kw and up. Centrifugal pumps, incorporating water-cooled seals are standard. Units come in upright and compact models, as well as multizone configurations.

Portable chillers available with both air- and water-cooled condensing from 1 to 20 tons. Standard features include hot-gas bypass, stainless-steel or nonferrous fully insulated reservoir tanks, all-copper piping, and freeze-stat control.

VAN STEENBURGH LIQUID CHILLERS

Chill-Trak series reciprocating liquid chillers from 2 to 7.5 tons feature heat-reclaim capability and incorporate patented Head Start receiver, which ensures immediate startup under low ambient conditions. Access valves to all sections of the refrigeration circuit are on front panel for easy servicing and refrigerant recovery.

WEST COAST PLASTICS EQUIPMENT

Offers three lines of chillers (Schreiber, Rite-Temp and Arctic), particularly suited to Western hard-water conditions, in capacities from 1 ton to over 250 tons. Also mold-temperature controllers by TEW (Taiwan) in 3- and 5-kw ratings that reportedly circulate water or oil medium up to 302 F in a single, trouble-free unit.

Distributes cooling towers by three builders: Marley's conventional towers, RSD's fluid coolers, and Amcot all-fiberglass towers. Units range in capacity from 3 to 200-plus tons.