CW-H Multi-Magic Water Manager Control Board Upgrade Kit (Pt# 123165) – Replaces Board 671183P


Applicable Models: CW-H with Multi-Magic Controls
Document Reference: 864581-A Lit CW-H Multi-Magic Water Manager Upgrade
Conversion Kit: 123165
Old Board: 671183P
Replacement Board: 671438 (Note: Not compatible with CW-80)



⚠️ Important Pre-Installation Notes

  • Power Isolation: Always isolate the cooler power supply before performing any electrical work.
  • Date Check: Confirm the cooler's date of manufacture to determine the required upgrade steps.
  • Kit Contents: The conversion kit includes the new control board (671438), upgrade literature, and adaptor cables.


Upgrade Actions by Manufacture Date

Model

Date of Manufacture

Required Actions

CW-H

Sept 2020 – Jan 2021

Modify fan contactor cable, replace PLC communications cable, modify pump power cable, replace control board

CW-H

Jan 2021 – June 2025

Replace PLC communications cable, modify pump power cable, replace control board

CW-H

June 2025 onwards

Replace control board only


Before unplugging cables from the old control board, take note of the different layouts as shown in the diagrams below.


Remove the old control board by undoing the seven M3x3mm Pan Head Screw and Star Washers highlighted in yellow below. Fit the replacement control board using the same fasteners applying a tightening torque of 1Nm.