Hydromatic II Chiller Operation Manual

Table Of Contents
Page 18
Rev 1.07 ©2015 Micro Air Corp 10/26/2015
Wiring Diagrams
Board and Firmware revisions
This manual makes reference to Hydromatic II control board printed circuit board
(PCB) revisions. The PCB revision is found along the edge of the printed circuit board in
white silk screened lettering and starts with PCB-250. PCB-250-00E indicates a revision
E circuit board.
Firmware revision is shown on the display immediately after applying power.
Wiring Diagram Identification
The included wiring diagrams are organized by board revision. To find the correct
diagram for your system, first identify the control board revision used in your system.
Use this identifier to find the correct wiring. Systems may not include all features shown
in the wiring diagrams. Colors are provided for clarity and may not reflect the colors used
in your system.