CENTRAL CHILLER

Water Chiller System for Multiple Users

One Temperature to All Users:
10/15°C (50/60°F)

One centralized Pumping group

MICROGEL/TURBOGEL

Point-to-Point, Process Cooling Units
One or Two Flexible and Precise Temperatures to each Mould:
from -5 to 90°C (25 to 195 °F)

One or Two Customized Pumps for each Mould

• Lack of flexibility in temperature control.
• Variable water flow to moulds, Highly affected by the other users
• Higher cooling cycle time due to High and Variable delta T on moulds.
• No possibility of communication with processing machines.

Running costs

• Low reliability and High investment cost for a stand-by unit.
• High water pressure drops across the main water pipeworks.
• Need to re-heat water for moulds requiring a higher temperature than the one provided by the central chiller.
• Need to keep the central chiller temperature set-point at the lowest temperature required by all moulds.
• High refrigerant gas emission (high environmental impact) in case of leakage.

Installation

• High Main Pipework Insulation Costs
• Complicated and costly Initial Installation for centralized pump-tank groups
• Complicated and costly Expansions

ADVANTAGES
Productivity

• Possibility of searching and repeating the optimum cooling conditions for each mould. Complete independence of setting.
• Precise automatic control of the mould temperature.
• Cooling conditions (temperature AND flow) permanently stable and under control for each mould.
• High cooling efficiency with low delta T of the process fluid through the mould => Lower Cycle Times
• A much higher quality of molded parts. Less scraps.
• Communication interfaces available with process machines.

Running costs

• Total reliability, easy to replace with a spare unit in case of failure, minimum production downtimes.
• Reduced Pressure Drops across the main water pipeworks
• High and constant Flow often allows higher fluid temperature, reducing the risk of mould sweating and reducing energy consumption
• Free-Cooling Opportunities as a standard feature
• Little refrigerant gas emissions in case of leakage (Minimum environmental impact)

Installation

• Simple, quick and inexpensive installation. No need for intricate central pumping groups.
• No need for main pipeworks insulation
• Modular concept “Easy to expand”