Benefits
Improve Product Quality	Reduce scrap
Reduce costs	Increase tool life
Increase production	Recover heat

Pioneer's Cool Mass Advantages

1. Micro Processor Controller for precision temperature control. Standard for NEMA 1 and NEMA 4; not available for NEMA 7.
2. Heat exchanger and tank combination feature (patent pending) increases cooling capacity, provides more consistent temperature and minimizes loss of cooling capacity to ambient.
3. Rust free - The heat exchanger, tank and all cooling fluid piping are constructed of copper or brass providing rust-free service. Stainless steel construction is available.
4. Cleaner fluid - Rust-free, closed-loop sealed fluid flow is standard, preventing algae and atmospheric contamination problems. Kleen Water Filters are recommended to remove particles that may be picked up during use of the cooling fluid.
5. Cycling saves - Cool Mass chillers cycle just like your refrigerator and air conditioner. For most applications, the chillers shall be sized for the maximum heat load under the most severe ambient conditions with a 10-20% buffer for contingencies. Because the heat load and ambient conditions generally vary, the Cool Mass design uses energy in proportion to the actual heat load being placed on the refrigeration system, thus saving energy and decreasing wear on equipment. The design incorporates a storage for cooling capacity (Cool Mass). This feature provides for added capacity during peak demand and turns refrigeration off during low load.
6. Faster response - Once cooled, the Cool Mass design reduces the time required to lower fluid temperature during startup.
7. Cylinder unloading (standard in C2400/CU2400 and larger) further improves the efficiency of Pioneer Cool Mass chillers by providing variable compressor capacity.
8. Freeze protection is standard.
9. Automatic pump down (standard in C2400/CU2400 and larger) saves on refrigerant loss and increases compressor life.
10. Discus semi-hermetic compressor (standard in C2400/ CU2400 and larger) saves up to 10%...

• Unique discus valve design increases capacities, minimizes re-expansion gas, and improves volumetric pumping efficiency.
• Saves up to 10% in energy costs.
• Includes service valves, deep oil sump, crankcase heater and solid state motor protection.
• Capacity control.
• Crankcase oil level sight glass.
• Positive Displacement oil pump maintains required lubrication.
• UL recognized--60 Hertz.
• C.S.A. approved--60 Hertz.

The heat exchanger and the tank combination design-exclusive to Pioneer Cool-Mass Cycling chillers- is a variation of the patented Triple-tube design used very successfully in thousands of Pioneer refrigerant dryers.

Also available:

1. Duplex pumping systems.
2. Dual pump and dual circuit chiller systems for high temperature applications.
3. Chiller/heater combination systems.

Ç(back to top)

Typical Dimensions 

Ç(back to top)

Pumping Stations

Pump Selection
The pump shall have sufficient flow and pressure capabilities. For more demanding applications, Duplex pumping system is recommended.

Duplex pumping system
Use two pumps. For example, D1000 uses two P100 pumps, prepiped and prewired. Each pump is piped with a check valve and inlet and outlet isolation valves. One pump provides backup while the other operates. Either of the pumps may be replaced while the other operates.

Ç(back to top)

Applications

Molding equipment	Boiler feed sampling	Degreasers
Induction heating equipment	Spray wash for poultry etc.	Electric generators
Welding equipment	Cement mixing	Plating tanks
Numerically controlled machines	Lasers	Fish tanks
Bakery	Packaging machinery	Spot cooling for people
Chemical operations	Computers	Quench tanks
Food processing	Plasma cutting	Blower pressure air/gas cooling
Machine tools	Process analyzers	Compressed air/gas cooling
Cooling jackets-mixers, ovens etc.	Film processing	Spot cooling for equipment
Oil base coolants in drilling, cutting, rolling, grinding and honing operations	Instruments -- spectrometers, microscopes, scanners, etc	De-ionized water or liquids (S.S. systems

 Ç(back to top)

COOL MASS ULTRA
HIGH EFFICIENCY CYCLING CHILLERS

Lower temperatures and energy savings

Pioneer's Cool Mass Ultra utilizes an evaporative condenser to yield lower temperatures while saving on energy costs.

Principle of operation

The vapor to be condensed is circulated through a condensing coil, which is continually wetted on the outside by a recirculating water system. Air is blown upward over the coil, causing a small amount of water to evaporate. This evaporation removes heat from the coil, cooling and condensing the vapor in the coil to temperatures lower than either air-cooled or water-cooled condensers.

Energy Savings

Evaporative condensers offer energy savings by requiring lower system horsepower than conventional air-cooled and water-cooled condensing systems.

Saves up to 30% compared to air-cooled systems

Evaporative condenser capacity is a function of ambient wet bulb temperature while air-cooled condenser capacity is a function of ambient dry bulb temperature. Since design wet bulb temperatures are generally 15° to 20° F lower than design dry bulb temperatures, using evaporative condensers, the condensing temperature can be 15° to 20° F less, resulting in compressor and system horsepower savings of up to 30 percent.

Saves up to 15% compared to water-cooled systems

The evaporative condenser rejects heat directly to the ambient air in one step of heat transfer. In the shell-and-tube condenser/cooling tower system, heat must be first transferred to the cooling water by the condenser, and then to the atmosphere by the cooling tower. The single heat transfer step in the evaporative condenser provides lower condensing temperatures and compressor horsepower savings of up to 15 %.

Ç(back to top)

Selection and Sizing

Heat removal = gallons per minute (GPM) x 500 x temperature differential (delta T) x specific heat.
Pump HP = GPM x pressure in PSIG /(1714 x pump efficiency x motor efficiency)

Pipe size is governed by acceptable water velocity and pressure loss. Recommended water velocity is 3-7 feet/second and maximum recommended pressure loss is 8 ft./100 ft. of pipe length. See Maximum Recommended Flow Table for pipe selection.

Example

Determine the size of chiller required to maintain a temperature differential of 7°F between the water in to the chiller at 60°F and the water coming out of the chiller at 53°F for the flow of 15 GPM.

Heat load

= GPM x 500 x deltaT x specific heat

= 15 x 500 x 7 x 1.0

= 52,500 BTUH

Model C600 is recommended. It has sufficient buffer for contingencies. Based upon above stated acceptable water velocity and pressure loss, 1" pipe is adequate for 100 ft. or less equivalent (allowing for fittings) pipe distance. For greater equivalent pipe distance, 1 1/2" is required.

Based on 20 PSIG water pressure, usually sufficient for most applications, minimum required pump HP is:

15 x 20 ÷ (1714 x 0.75 x 0.9) = (0.26 HP)

Recommended 1/2 HP pumping system is more than sufficient. Typically, pump should be oversized by about 25% or more.

CAUTION
Calculate heat load carefully and oversize chiller by 10-20% to allow for contingencies.

Maximum Recommended Flow Table

For 100 ft. or less equivalent pipe length (after allowing for fittings). Oversize for longer lengths.

Ç(back to top)

Kleen-Water Filters

For longevity and dependability, we recommend Kleen-Water. Filters which are 99.0%efficient down to 1 micron. Click here to view point of installation. 

Ç(back to top) 

Cool Mass Chiller Specification Guide

The closed-loop, sealed chiller shall be capable of cooling a _____ GPM/LPM flow of process fluid from _____ °F/°C to _____°F/°C on a continuous and automatic basis. The chiller shall be of a cycling design and come equipped with a Micro Processor Controller for push-button, sequential control of the refrigerant compressor(s) and pump(s). With the touch of a button, the Micro Processor Controller shall monitor the temperatures in °F or °C of: inlet, suction, discharge, evaporator, outlet and ambient. It shall have 'on/off' controls for two pumps. The chiller shall utilize non-rusting copper and brass on all cooling fluid surfaces, heat exchanger, tank and piping. It shall incorporate an integrated heat exchanger and tank design for consistent temperatures. It shall provide protection from process fluid freeze-up. The refrigeration system shall use R-22 refrigerant.

The refrigerant condenser shall be

____air-cooled

____water-cooled

____evaporative-cooled.

The chiller shall incorporate more efficient Discus semi-hermetic compressor(s)*, automatic pump down* and cylinder unloading*. The solid state controls and wiring shall be NEMA 1. The chiller shall have a 10-year limited warranty (prorated).

( * Applicable in C2400/CU2400 and larger.)

The chiller shall be Pioneer Cool Mass model______________

Options:

• Kleen-Water filter
• Pumping System
• R-134A refrigerant
• Freeze Protector _____ gallons
• Stainless steel construction
• Dual pump, dual circuit
• Golden Umbrella-extended parts & labor warranty.

Ç(back to top) 

Typical Installation

Please consult factory for special applications and other optional features

 Ç(back to top)