ESIE11-02
Part 3 – Troubleshooting 3–1
4
3
4
5
3
Part 3
Troubleshooting
Introduction The small water chillers EUWA*5-24KBZW1 and EUWY*5-24KBZW1 are equipped with a digital
controller and an I/O (input/output) PCB. These PCB’s use the information gained from the input
signals to control the output signals. If the unit is not performing properly, first check the input devices,
then the PCB’s and finally the output devices.
What is in this part? This part contains the following chapters:
Chapter See page
1–Inputs and Outputs Overview 3–3
2–Malfunction Indications and Safeties Overview 3–7
3–Checking the Inputs and Outputs 3–13
4–Troubleshooting 3–23