
Introduction 3
Cat. No. 01029401
Introduction
Read this Manual First
Before you operate the Culligan® Top Mount (CTM) Water Softeners, read this manual to become familiar with the
device and its capabilities.
The Culligan CTM Water Softeners are tested and certified by WQA against NSF/ANSI/CAN 61
and NSF/ANSI 372. Not certified for Structural Integrity (except for CSA models) or Contaminant
Reduction by WQA.
The Culligan CTM 60K, 90K and 120K Water Softeners are also tested and certified by WQA
against CSA B483.1. Not certified for Contaminant Reduction by WQA.
Models listed by WQA are:
CTM Downflow HWB Capacity Softener (60K, 90K, 120K, 150K, 210K, 300K, 450K, 600K)
CTM Downflow NHWB Capacity Softener (120K, 150K, 210K, 300K, 450K)
CTM Downflow Multi-Tank Capacity Softener (60K, 90K, 120K, 150K, 210K, 300K, 450K, 600K).
The Culligan CTM Water Softeners have been certified by IAPMO R&T against NSF/ANSI
Standard 372, CSA B483.1 and NSF/ANSI/CAN Standard 61 for Material Safety and
Structural Integrity Requirements. Not certified for Contaminant Reductions by IAPMO R&T.
The skid mounted systems have not been tested or certified by IAPMO R&T and WQA.
The Culligan® Top Mount (CTM) Water Softeners are designed to meet the needs of applications for high quality
water. This manual contains important information about the unit, including information needed for installation,
operating, and maintenance procedures. A troubleshooting section provides a guide for quick and accurate
problem solving.
In order for the water treatment system to continue to provide high quality water, you must develop a thorough
understanding of the system and its operation. Review this manual before making any attempt to install, operate,
or service the system. Installation or maintenance done on this system by an untrained service person can cause
major damage to equipment or property damage.
Licensed plumbers know that standard industry procedures include only to hand tighten or use strap
wrenches on plastic parts. Plastic piping systems must be installed, operated and maintained in accordance
with accepted standards and procedures. Not adhering to the recommended service/maintenance can cause
damage to equipment or property damage.
This manual is based on information available at the time it was finalized, approved, and published.
Continuing design refinement could cause changes that may not be included in this publication.
Your local independently operated Culligan dealer employs trained service and maintenance personnel who are
experienced in the installation, function and repair of Culligan equipment. This publication is written specifically
for these individuals and is intended for their use.
We encourage Culligan users to learn about Culligan products, but we believe that product knowledge is best
obtained by consulting with your Culligan dealer. Untrained individuals who use this manual assume the risk of
any resulting property damage or personal injury.
NOTE! This manual can be obtained from your local dealer, on CPort (www.cport.culligan.com)
under the Technical Service Tab or on the Service Tech App.