Nowo 485 HTO/K Series User Manual

32 pages

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Canada West

855 Park St., Unit 1

Regina, SK S4N 6M1

Canada East

490 Pinebush Rd., Unit 1

Cambridge, ON N1T 0A5

U.S.A.

56 Lightcap Rd.

Pottstown, PA 19464

9760 Mayower Park Drive,

Suite 110

Carmel, IN 46032

4655 McDowell Rd. W

Phoenix, AZ 85035

Owners Manual

485 HTO/HTOK

Hardness Taste and Odor Filter

1. Page 17 of this manual contains important maintenance procedures for the continued proper

operation of your unit. These MUST be performed regularly for your warranty to remain valid.

2. Read all instructions carefully before operation.

3. Avoid pinched o-rings during installation by applying NSF certied lubricant to all seals (provided with install kit).

4. This system is not intended for treating water that is microbiologically unsafe or of unknown quality without

adequate disinfection before or after the system.

Questions and Answers:

P
Patricia SchroederAug 17, 2025
How to fix Nowo Water Filtration Systems that deliver hard water?
- K
  Keith BurchAug 17, 2025
  To address hard water issues with your Nowo Water Filtration System, try the following: * Ensure the bypass valve is closed. * Add salt to the brine tank, maintaining a level above the water line. * Replace injectors and the screen. * Check the brine tank fill time and clean the brine line flow tank control if it's plugged. * Inspect the distributor tube for cracks and check the O-ring and tube pilot. * Replace seals and spacers, and/or the piston. * Remove any obstructions from the flow meter. * Check the meter cable connection to the timer and meter cap. * Reprogram the control to the correct regeneration type, inlet water hardness, capacity, or flow meter size.
D
Dominic CooperAug 19, 2025
What to do if my Nowo Water Filtration Systems fails to regenerate?
- B
  Brian NewtonAug 19, 2025
  If your Nowo Water Filtration System isn't regenerating, make sure it has continuous electrical power by checking the fuse, plug, chain, or switch. If the power supply is stable, consider replacing the timer or the drive motor. You may also want to check the programming and reset it if necessary.

Nowo 485 HTO/K Series Specifications

General

Brand	Nowo
Model	485 HTO/K Series
Category	Water Filtration Systems
Language	English

Summary

Read This Page First

Install Notes & Safety Messages

Important installation and safety guidance to observe before operating the unit.

Specifications

System Dimensions

Provides physical measurements for different HTO/K models, including tank sizes and overall dimensions.

Brine Tank Dimensions

Unpacking and Inspection

What is Included in the Box?

Lists all components expected in the shipping carton for HTO/K-100, HTO/K-150, and HTO/K-200 models.

Contents for HTO/K-250/300 Models

Lists components included in the shipping carton for HTO/K-250 and HTO/K-300 models.

Assembling the Brine Tank

Check Valve Type and Serial Number

Before Installation

Inspect and Handle the Filter

Guidance on checking for shipping damage and proper handling of the filter unit.

Ensure Proper Product Function

Key requirements for proper product function, including water pressure and temperature.

Mechanical Installation Details

Details on lubricants and connection tightening for mechanical installation.

Required Tools for Installation

Lists essential tools and recommendations for installation professionals.

Preparations

Media Installation

Steps for installing or confirming media presence in the tank.

Locate Water Conditioning Equipment Correctly

Criteria for selecting the optimal location for the water conditioner.

Installation Steps

Planning Your Installation

Crucial considerations and local code compliance for planning the installation.

Startup Instructions

Initial Setup Steps

Connect power, add water to brine tank, and understand control panel basics.

Manual Regeneration and Keypad Configuration

Guide to manual regeneration and keypad button functions.

Power Up and Program Valve Settings

Guide to powering the unit and programming settings like salt, water type, and regen time.

Salt and Water Type Settings

Explains salt setting options and water type selection for optimal performance.

During Regeneration

Automatic and Manual Water Bypass

Instructions on using the bypass valve during regeneration or emergencies.

Plumbing System Clean-Up

Procedures for cleaning water heater, dishwasher, and toilet tanks after installation.

Maintenance Instructions and Schedule

System Check List

Checklist for proper installation and identifying potential issues before startup.

Service Schedule

Recommended annual service tasks for maintaining the control valve and system.

Bridging and Salt Tank Cleaning

How to address salt bridging and clean the brine/salt tank.

Checking Salt Level and Adding Salt

Guidance on monitoring and refilling the salt level in the brine tank.

Replacing Media Bed

Information on when and how to replace the media bed.

Warranty and Maintenance Information

Fields for recording essential unit details for warranty and service calls.

Inspection and Replacement of Piston Assembly

Clean Injector Assembly

Procedure for cleaning the injector assembly, including removing and cleaning parts.

Servicing of Parallel Adaptor

Replace Meter Assembly

Step-by-step guide for disconnecting and replacing the meter assembly.

Replacing the Bypass and Meter Cable

Replace Motor

Replace Drain Line Flow Control

Procedure for replacing the drain line flow control component.

Replace Brine Line Flow Control

Procedure for replacing the brine line flow control component.

Replacing PCBs

Display Replacement

Instructions for removing and replacing the unit's display.

After Servicing

Final checks and procedures after completing service or repairs.

Parts Breakdown

Control Valve, Bypass, and Tank Assemblies

Identifies parts for the control valve, bypass, and tank adapters.

Powerhead Parts List

Bypass Parts List

Valve Body Parts List

Tank and Valve Connection Parts

Parallel Tank Connector Parts

Specific part numbers for the parallel tank connector.

Trouble Shooting Guide

Common Problems and Solutions (Part 1)

Addresses issues like hard water, regeneration failure, and salt usage.

Common Problems and Solutions (Part 2)

Addresses issues like water pressure loss, resin loss, and brine line problems.

Master Programming Guide

Key Pad and Valve Settings

Explains keypad operations and details main valve configuration parameters.