Uponor C-46 User Manual (English)

Questions and Answers:

R
Randy HarrisAug 16, 2025
What to do if my Uponor C-46 says 'Missing sensor'?
- C
  Candice ShortAug 16, 2025
  If your Uponor Temperature Controller displays a missing sensor error, it could be due to several reasons: * The sensor might not be defined in the controller. You can verify this in the quick menu or by rerunning the installation wizard. * For wired sensors, ensure the connection to the controller is secure. * If it's a radio thermostat, check the link using the View link function and add the link if it's missing. * If the radio thermostat is connected through a Controller C-56 Radio, verify the thermostat ID in the Zones menu, check the cable connection between the Climate Controller C-46 and Controller C-56 Radio, ensure the thermostat is linked in the Controller C-56 Radio, and confirm that the software version of Controller C-56 Radio is version 5.0.3 or later.
K
Kristine SmithAug 19, 2025
What to do if the mixer valve does not open in Uponor Temperature Controller?
- T
  Timothy RodriguezAug 19, 2025
  If your Uponor Temperature Controller's mixer valve isn't opening, there are a few potential causes: * The actuator might not be correctly connected to the controller. Check the actuator connection. * The actuator type might be incorrect. For thermal actuators, ensure it's a 24 V DC, NC type. * If it's a motorized actuator, check the external power and ensure the rotation setting is correct (clockwise or counterclockwise). * There might be another problem. Remove the actuator and manually open the valve to check if the mixing valve and source are working correctly. Also, check all pumps in the system.
J
joshua45Aug 22, 2025
Why is the control erratic on my Uponor Temperature Controller?
- K
  Kenneth OconnorAug 22, 2025
  If your Uponor Temperature Controller is behaving erratically and the actuator is working too often, the parameter settings may not be ideal. Try decreasing the Proportional coeff. parameter. If you're using a motorized actuator, increase the Dead zone parameter.
T
tpotterAug 25, 2025
Why is the screen blank on my Uponor Temperature Controller?
- M
  mwhiteAug 25, 2025
  If your Uponor Temperature Controller screen is blank, it likely indicates a power issue. First, check the fuse. If the fuse is intact, verify the power connection to ensure it's properly connected.
W
wendy62Aug 27, 2025
Why does room temperature adjust slowly with weather changes on my Uponor C-46?
- C
  Charlene JohnsonAug 27, 2025
  If the room temperature adjusts too slowly when weather conditions change using your Uponor Temperature Controller, the control system might be running slowly. To address this, increase the Proportional coeff. parameter.
I
isabella56Aug 30, 2025
Why does the last couple of degrees take a long time to adjust on Uponor C-46?
- R
  Rick HughesAug 30, 2025
  If the last few degrees take a long time to adjust in the room with your Uponor Temperature Controller, the parameter settings may not be ideal. Decrease the Integration time parameter. If a motorized actuator is used, decrease the Dead zone parameter.
P
Patricia HernandezSep 2, 2025
Why does the control oscillate on my Uponor Temperature Controller?
- L
  Laurie GarciaSep 2, 2025
  If the control oscillates with your Uponor Temperature Controller, the parameter settings may not be ideal. Decrease both the Proportional coeff. and Integration time parameters. Also, check the pump, the mixer valve, and the supply temperature.
T
Tiffany JuarezSep 4, 2025
What causes unreasonable readings from wired sensor on Uponor Temperature Controller?
- W
  watsonrachelSep 4, 2025
  If you are getting unreasonable readings from the wired sensor connected to your Uponor Temperature Controller, it might be due to a wrong sensor type being connected. To resolve this, ensure that only Uponor sensors are used with the controller.

Uponor C-46 Specifications

General

Brand	Uponor
Model	C-46
Category	Temperature Controller
Language	English

Summary

Preface

Safety Instructions

Guidelines and warnings for safe installation and operation of Uponor equipment.

Operating Modes

Heating Modes Explained

System Integration with Controller C-56 Radio

Installation Guide for Climate Controller C-46

Installation Preparation Steps

Guidelines for determining the best installation position and ensuring necessary conditions.

Wall Mounting Instructions

Details on mounting the controller to a vertical surface, including dimensions and hole positions.

Connecting the Climate Controller C-46

Setting Up the Climate Controller C-46

Operation Interface Overview

Installation Wizard Guide

Selecting Operating Mode

Steps to select the desired operating mode from available heating, cooling, and meltaway options.

Heating Mode Setup

Guides sensor selection for Heating or Heating + Cooling modes.

Cooling Mode Setup

Meltaway Mode Setup

Heating/Cooling Switchover Setup

Restarting the Installation Wizard

Provides methods to restart the installation wizard if mistakes were made during setup.

Quick Menu Navigation and Screens

Information Screens Overview

Parameter Adjustment Screens

Navigating Parameter Screens

Setting Indoor Setpoint

Sets the desired indoor temperature for heating modes with indoor sensors.

Adjusting T-Slope Parameter

Adjusting T-Adjustment Parameter

Setting Dew Point Parameters

Setting Dew Point Margin

Setting Dew Point Offset

Operating the Climate Controller C-46

Main Menu Navigation

Climate Controller Menu Options

Details screens accessible from the Climate controller menu, dependent on operating mode.

Control Settings Menu

Heating Mode Parameter Settings

Configuring Standby Mode

Enables or disables standby mode to temporarily suspend all control functions.

Setting Heating Supply Setpoint

Sets the target supply circuit temperature for heating.

Setting Heating Indoor Setpoint

Sets the target indoor temperature for heating with wired indoor sensors.

Adjusting the Heat Curve

Setting Average Setpoint

Eco Night Mode Configuration

Setting Min./Max. Supply Temperatures

Eco Night and Day Mode Configuration

Adjusting T-Slope for Heat Curve

Adjusting T-Adjustment for Heat Curve

Heat Curve Adjustment Description

Explains T-slope and T-adjustment parameters for modifying the heat curve.

Heat Curve Adjustment Example

Demonstrates adjusting the heat curve for insufficient heating based on outdoor temperatures.

Configuring Heating Activation and Summer Shut-off

Configuring Indoor Sensor Influence

Cooling Mode Parameter Settings

Configuring Cooling Activation and Winter Shut-off

Sets cooling to always active or enables winter shut-off functionality.

Setting Cooling Supply Setpoint

Sets the target supply circuit temperature for cooling.

Setting Cooling Indoor Setpoint

Sets the target indoor temperature for cooling with wired indoor sensors.

Heating/Cooling Switchover Configuration

Outdoor-Indoor/Supply Temp. H/C Switchover

Meltaway Mode Parameter Settings

Supply Water Temperature H/C Switchover

Advanced Control Settings

Accesses advanced control parameters like operating mode, response, and frost protection.

Selecting Operating Mode (Advanced)

Allows changing the primary operating mode of the controller.

Adjusting Control Response Parameters

Configuring Frost Protection

Enables frost protection and sets the minimum supply temperature limit.

ECO Mode Configuration

Pump Management Settings

ECO Mode Settings for Heating

Configures ECO mode settings for heating, including supply temp setback and profiles.

Applying ECO Profiles

Editing ECO Profiles

Modifies the times for switching between comfort and economy modes.

ECO Mode Settings for Cooling

Alarm Management

Displays alarms and allows clearing the alarm list.

Viewing All Alarms

Displays all unresolved alarms and provides an option to clear the alarm list.

General Settings Menu

Accesses settings like access level, clock, language, temperature unit, and backlight.

Setting Access Level

Configuring Clock Settings

Manages time, date, time format, date format, and auto daylight saving.

Managing Controller IDs

Radio Link Management

Manages radio links between sensors and the controller, including viewing, adding, and resetting.

Adding Radio Links

Viewing Radio Links and Sensor Status

Displays linked sensors and their battery/signal status.

Resetting All Radio Links

Testing Radio Range

Economy and Comfort Mode Usage

Eco Off Mode Configuration

Eco All Mode Configuration

Seasonal Shut-Off Features

Heating Mode Without Summer Shut-off

Heating Mode With Summer Shut-off

Explains how to set up summer shut-off for heating to save energy.

Cooling Mode Without Winter Shut-off

Cooling Mode With Winter Shut-off

Explains how to set up winter shut-off for cooling to save energy.

Heating/Cooling Without Season Shut-offs

Heating/Cooling With Season Shut-offs

Explains how to set up seasonal shut-offs for combined heating and cooling modes.

Troubleshooting Common Problems

Troubleshooting: Missing Sensor Alarm

Resolves issues related to missing or undefined sensors connected to the controller.

Troubleshooting: Mixer Valve Not Opening

Addresses problems with mixer valve opening due to connection or configuration issues.

Troubleshooting: C-46 to C-56 Radio Connection

Resolves connection issues between the Climate Controller C-46 and C-56 Radio.

Troubleshooting: Unreasonable Sensor Readings

Addresses erratic control due to incorrect sensor settings or types.

Troubleshooting: Erratic Control and Actuator Activity

Fine-tunes control response and dead zone parameters for erratic actuator behavior.

Troubleshooting: Slow Room Temperature Adjustment

Improves room temperature response by adjusting Proportional coeff. and Integration time.

Troubleshooting: Blank Screen

Checks fuse and power connection when the controller display is blank.

Troubleshooting: Comfort/Economy Mode Switching

Corrects clock settings and verifies ECO mode configuration for proper switching.

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Table of Contents

Questions and Answers:

Uponor C-46 Specifications

Summary

Preface

Safety Instructions

Operating Modes

Heating Modes Explained

System Integration with Controller C-56 Radio

Installation Guide for Climate Controller C-46

Installation Preparation Steps

Wall Mounting Instructions

Connecting the Climate Controller C-46

Setting Up the Climate Controller C-46

Operation Interface Overview

Installation Wizard Guide

Selecting Operating Mode

Heating Mode Setup

Cooling Mode Setup

Meltaway Mode Setup

Heating/Cooling Switchover Setup

Restarting the Installation Wizard

Quick Menu Navigation and Screens

Information Screens Overview

Parameter Adjustment Screens

Navigating Parameter Screens

Setting Indoor Setpoint

Adjusting T-Slope Parameter

Adjusting T-Adjustment Parameter

Setting Dew Point Parameters

Setting Dew Point Margin

Setting Dew Point Offset

Operating the Climate Controller C-46

Main Menu Navigation

Climate Controller Menu Options

Control Settings Menu

Heating Mode Parameter Settings

Configuring Standby Mode

Setting Heating Supply Setpoint

Setting Heating Indoor Setpoint

Adjusting the Heat Curve

Setting Average Setpoint

Eco Night Mode Configuration

Setting Min./Max. Supply Temperatures

Eco Night and Day Mode Configuration

Adjusting T-Slope for Heat Curve

Adjusting T-Adjustment for Heat Curve

Heat Curve Adjustment Description

Heat Curve Adjustment Example

Configuring Heating Activation and Summer Shut-off

Configuring Indoor Sensor Influence

Cooling Mode Parameter Settings

Configuring Cooling Activation and Winter Shut-off

Setting Cooling Supply Setpoint

Setting Cooling Indoor Setpoint

Heating/Cooling Switchover Configuration

Outdoor-Indoor/Supply Temp. H/C Switchover

Meltaway Mode Parameter Settings

Supply Water Temperature H/C Switchover

Advanced Control Settings

Selecting Operating Mode (Advanced)

Adjusting Control Response Parameters

Configuring Frost Protection

ECO Mode Configuration

Pump Management Settings

ECO Mode Settings for Heating

Applying ECO Profiles

Editing ECO Profiles

ECO Mode Settings for Cooling

Alarm Management

Viewing All Alarms

General Settings Menu

Setting Access Level

Configuring Clock Settings

Managing Controller IDs

Radio Link Management

Adding Radio Links

Viewing Radio Links and Sensor Status

Resetting All Radio Links