W600 Controller Support

W900 Controller Support

W600 Controller Support

Walchem's online support is here to assist you with answers to your most Frequently Asked Questions, installation and troubleshooting tips and training materials.

If you need additional support, please click here to locate your local master distributor. Walchem's master distributors maintain local inventory of pumps, controllers and spare parts, are fully trained to provide technical support, and understand the needs of customers in their territories.


Getting Started

General Support


PDF W900 Menu Maps PDF Chlorine Sensor Guidelines PDF W900 VTouch Troubleshooting
PDF W900 Quick Programming Boiler PDF Conductivity Sensor Cleaning PDF Troubleshooting Boiler Controllers
PDF W900 Quick Programming Cooling Tower PDF Disinfection Sensor Technical Tips PDF ORP Sensor Troubleshooting
PDF W900 Quick Programming: Biocide PDF Circuit Board Installation/Replacement Instructions    
Intro to Wiring the W900 PDF W900 Communications    
    PDF W600 / W900 Direct Ethernet Connection    
PDF Relay Interlock Logic    
PDF Controller AO to multiple pumps    
PDF Disturbance Input and Control Mode
Application Note

Spare Parts Drawings

PDF Controller Spare Parts        
PDF Sensor Options