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.