R- Closed Loop Chillers
Self-Contained Recirculating Chillers
Closed-Loop chillers recirculate coolant from a tank mounted on board the chiller, through a sealed coolant loop and heat source (process) and back to the tank. The tank, pump, and evaporator are all on board the chiller.
RO- Open Loop Chillers
Recirculate Fluid from a Remote Tank
Open-Loop chillers recirculate fluid from a remote tank, through the chiller and back to the tank. The chiller works to maintain a constant fluid temperature in the tank. The pump and evaporator are on board the chiller. The tank is remote.
IL- In-Line Chillers
Installed “In-Line” Where the Process Already Contains a Pump
In-Line chillers cool fluid that is passing through under pressure. Only the evaporator is in the chillers. Both the pump and tank are remote.
These chillers are often used in applications where it is advantageous to have the pump mounted on or near the tank to recirculate fluid through the chiller and back to the tank.
DI- Drop-In Chillers
Space-Saving Design to Cool Fluids in a Tank
Drop-In coolers are designed to be mounted on top of a tank to cool the fluid that is surrounding the coils. The stainless steel immersion coil type evaporator is submerged into the fluid in the tank. A small agitation pump continuously moves the fluid around the evaporator coils ensuring proper heat transfer. The temperature controller senses the fluid temperature and controls the chillers cycling to maintain the fluid in the tank at the set-point.
PT- Process Tank Chillers
Two Loop Chiller for True Process Applications
The PT Model Chiller Uses Two pumps with one process tank. One pump circulates coolant through the evaporator to maintain a constant tank temperature, while a second pump circulates coolant from the process tank (on-board chiller) through the process and then back to the process tank.
Non-Refrigerated Chillers Water Cooled
Use central chilled water, instead of refrigeration, to provide close temperature control of recirculating coolants or oils.
Any R-Closed-Loop or RO-Open-Loop cooler can be supplied with the NRCW option that replaces the standard refrigeration system with a water-to-coolant or water-to-oil heat exchanger. If chilled water is available at the installation, significant savings can be achieved in both initial and operating cost by using this chilled water to control the temperature of coolants being recirculated to your process.
On all units, a digital temperature controller operates an electronic mixing valve to control the flow of chilled water through the heat exchanger to provide close temperature control of recirculating fluids.
There are significantly fewer moving parts to maintain. Heat from the process is removed as warm water to a central location where it can be used or dissipated efficiently.
Non-Refrigerated Chillers Air Cooled
Use ambient air, instead of refrigeration, to provide close temp-erature control of recirculating coolants or oils.
Many R-Closed-Loop or RO-Open-Loop coolers can be supplied with the NRCA option that replaces the standard refrigeration system with an air-to-coolant or air-to-oil heat exchanger. Significant savings can be achieved in both initial and operating cost by using ambient air to control the temperature of coolants being recirculated to your process.
Ambient air must be at least 15°F (9°C) cooler than the lowest desired coolant temperature. Desired coolant temperatures must usually be above 110°F (44°C).
A digital temperature controller cycles a fan moving air across a fin coil heat exchanger to provide close temperature control of recirculating fluids.
All models are supplied with cleanable aluminum air intake filters.