Have you configurated your Alfa Laval Heat exchangers correctly? Please find the link below under the tab "links"
PHE Select is Alfa Laval’s easy-to-use selection tool for plate heat exchangers. Whether you're working with HVAC water/water or water/glycol systems, the tool helps you quickly identify the best fit for your application. It’s available anytime and designed for straightforward use, so no training is required.