Uponor A3100101 Heat-only Thermostat with Touchscreen User Manual

1. Introduction

This manual provides detailed instructions for the installation, operation, and maintenance of the Uponor A3100101 Heat-only Thermostat with Touchscreen. This thermostat is specifically designed for controlling radiant floor heating systems, ensuring efficient and comfortable heating.

Figure 1: Uponor A3100101 Heat-only Thermostat with Touchscreen. The image displays the white rectangular thermostat with a digital screen showing "68 °F" and a power icon at the bottom left.

2. Product Overview

The Uponor A3100101 thermostat offers precise control over radiant floor heating. Its key features include:

• Simple, intuitive display with large, easy-to-read numbers.
• Designed specifically for controlling radiant floor heating systems.
• Utilizes fully automatic differential and pulse width modulation (PWM) for optimal comfort and energy efficiency.
• Fast and easy two-wire installation.
• Can control room temperature via operative temperature sensing, an optional floor sensor, or a combination of both.
• Floor sensor capability for maintaining warm floors and providing temperature limit protection.

2.1. Radiant Heating System Benefits

Radiant floor heating circulates warm water beneath the floor for even warmth throughout the entire area, offering a more comfortable and energy-efficient heating solution compared to forced air systems.

Figure 2: Diagram illustrating the difference in heat distribution between forced air systems (uneven temperatures) and radiant floor heating (even, energy-efficient heat).

2.2. System Components

The thermostat integrates with a radiant floor heating system, which typically includes PEX tubing and manifolds.

Figure 3: A coil of white Uponor PEX tubing, a key component for circulating heated water in radiant floor systems.

Figure 4: An Uponor radiant heating manifold, used to distribute heated water to different zones of the PEX tubing system.

2.3. What's in the Box

• Uponor Heat-only Thermostat with Touchscreen

3. Setup and Installation

The Uponor A3100101 thermostat is designed for straightforward two-wire installation. It is intended for wall mounting.

3.1. Wiring

Connect the thermostat using a two-wire low voltage electrical connection. Ensure power is disconnected before beginning any wiring procedures. Consult a qualified electrician if you are unsure about the wiring process.

3.2. Mounting

Mount the thermostat on a wall in a suitable location, away from direct sunlight, drafts, or heat sources that could affect temperature readings. Follow local electrical codes and installation guidelines.

3.3. Optional Floor Sensor

For enhanced control and floor temperature maintenance, an optional floor sensor can be integrated. This sensor helps maintain consistent floor warmth and provides temperature limit protection for the flooring material.

Figure 5: An installer using a tool to lay PEX tubing onto a radiant floor heating subfloor, demonstrating the installation process.

4. Operating Instructions

The thermostat features a touchscreen interface for easy temperature adjustment and mode selection.

4.1. Temperature Control

Adjust the desired temperature using the touchscreen. The thermostat will automatically regulate the radiant floor heating system to maintain the set temperature. It uses operative temperature sensing, which considers both air temperature and radiant heat, for accurate comfort control.

4.2. Pulse Width Modulation (PWM)

The thermostat employs Pulse Width Modulation (PWM) to precisely control the heat output, ensuring stable temperatures and energy-efficient operation by cycling the heating system on and off in short intervals.

4.3. Display

The LCD display shows the current temperature and other relevant information with large, easy-to-read numbers. The backlight ensures visibility in various lighting conditions.

5. Maintenance

The Uponor A3100101 thermostat requires minimal maintenance.

• Cleaning: Gently wipe the touchscreen with a soft, damp cloth. Avoid abrasive cleaners or solvents.
• Inspection: Periodically check the thermostat for any visible damage or loose connections.

6. Troubleshooting

If you encounter issues with your Uponor A3100101 thermostat, consider the following:

• No Display/Power: Verify that the power supply to the thermostat is active and connections are secure.
• Incorrect Temperature Reading: Ensure the thermostat is not exposed to direct drafts, sunlight, or heat sources. If using a floor sensor, check its connection.
• Heating System Not Responding: Check the thermostat settings and ensure the heating system itself is operational. Consult a qualified HVAC technician if the issue persists.

7. Specifications

8. Warranty Information

While specific warranty details for the thermostat are not explicitly provided in the product description, Uponor radiant heating systems, when installed by an Uponor-trained professional, typically come with a 25-year limited warranty on the PEX tubing. For precise warranty information regarding the A3100101 thermostat, please refer to your product packaging or the official Uponor website.

9. Support

For further assistance, technical support, or to inquire about service, please visit the official Uponor website or contact their customer service department. Always provide your product model number (A3100101) when seeking support.