Carel PJEZ Controller Manual and Parameters for Unifrost Cabinets

At a glance before you change anything

These controller pages are designed to reduce wrong turns. Use the PDF first, then work outward into the model route or fault route if the issue is broader than the controller itself.

Download the correct controller PDF first

Use the matching controller PDF before you change a set-point, parameter, or alarm-related value.

Common Unifrost model groups using this controller

The same controller often appears across multiple cabinet families. Match the controller label first, then use the cabinet model to narrow down the right support path.

• GDF401 / GDR401 display support routes where the PJEZ family appears in the local file set.
• R410SS and selected STV1225-related support paths where PJEZ is one of the identified controllers.
• Smaller shared controller clusters where a single manual supports multiple adjacent models.

Use this controller page when you need to

These pages are meant to reduce guesswork, not replace the exact PDF.

• Match the PJEZ display and button layout before you use a controller PDF from a model folder.
• Keep model-specific support and controller-specific support separate so the page stays useful for real troubleshooting.
• Move into the correct PDF first instead of assuming a Dixell or Elitech controller because the cabinet family looks similar.

Always use the exact controller PDF for button sequences, parameter codes, and wiring or alarm details. This page is the plain-English route into the right document, not a replacement for it.

Related Unifrost support routes

If the controller is only part of the problem, these broader manual and troubleshooting pages should be the next stop.