The
integrity of your plastic return lines is likely to become compromised at
temperatures above 65°C. The addition of this option will provide your
chiller with protection from any high return temperatures created by the
process of your application, preventing any damage and allowing any heat
build-up to take place in the chiller without the prospect of heat-induced
mechanical failure.
An increase in flow rate may also provide a solution to this problem in the
absence of a high temperature water circuit.