Thermostats

ATA11U01

The ATA11U01 electronic thermostat is designed for single-stage, non-programmable temperature control of 24V water-source heat pump systems. It features configurable automatic or manual changeover, heat-off-cool-auto system selections, a temperature display range from 50°F to 90°F, and retains setpoints in memory during power outages without the need for batteries.

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Overview

The ATA11U01 electronic thermostat is designed for single-stage, non-programmable temperature control of 24V water-source heat pump systems. It features selectable system modes including Heat, Off, Cool, Auto, and Fan settings, with options for °F or °C temperature display. The thermostat supports configurable automatic or manual changeover operation and includes an LED for alarm status. Additionally, it retains setpoints in memory during power outages and offers a temperature display adjustment feature for customized applications. The electrical rating supports input power from 18 to 30 Vac, making it versatile for different setups.

Features

Standard Features

One Heat/One Cool, Auto/Manual Changeover, Non-Programmable
Single-stage, non-programmable temperature control for 24V water-source heat pump systems.
Heat-Off-Cool-Auto System selections
Fan-On-Auto selections
°F or °C temperature display
Configurable automatic or manual changeover operation
Light emitting diode (LED) for alarm status
Installer setup options allow for customized applications
Zero temperature droop performance
Setpoints are permanently held in memory (no batteries used) and retained during power outages

Configurable Options

Auto Changeover, One Heat/One Cool, Auto/Manual Changeover, Non-Programmable
Provides single-stage, non-programmable temperature control for 24V water-source heat pump systems.
Heat-Off-Cool-Auto system selections
Fan-On-Auto selections
°F or °C temperature display
Configurable automatic or manual changeover operation
Light emitting diode (LED) for alarm status
Installer setup options allow for customized applications
Zero temperature droop performance
Temperature display adjustment feature provides display offset for custom applications
Setpoints are permanently held in memory (no batteries used) and retained during power outages
Extended fan operation feature can operate fan for 90 seconds after 'Y' turns off

Performance Specifications

Performance specifications not applicable to this product.

Resources

“With our research, ClimateMaster is number one. We don’t have any outside units—you can sit on the back porch without the unit clicking on or the fan running in the summertime. This being my last house, we really checked into geothermal, and it’s been the perfect solution.”

BrentHomeowner

“Now I’ve got a certified home that is 78% more energy efficient than my neighbors and 48% more efficient than new builds on the market today. I’m saving about $1,750 to $1,800 a year, and as a bonus, I get free hot water as a byproduct of my geothermal system. It’s quiet—I can hear my neighbors’ air source heat pumps, but they don’t hear mine.”

ChadResidential Professional & Homeowner

“We have geothermal—our neighbors don’t, and I know they wish they did. It’s a clean heat, not as drying to the skin, and you can feel the difference. In 6.3 years, we’ll recoup our investment, and after that, it’s all savings. Just plain facts—it saves money. ClimateMaster was the right choice: professional, customer-oriented, and easy to work with.”

PamelaHomeowner

ATA11U01

Overview

Features

Standard Features

Configurable Options

Performance Specifications

Resources

Thermostat - ATA22U01 IOM (includes ATA11U01)

Thermostat - ATA11U01 IOM (includes ATA22U01)

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