EcoNet UETST800SYS Smart Thermostat User Guide

EcoNet UETST800SYS Manual: Questions and Answers

Can I use regular thermostat wire to wire the EcoNet UETST800SYS?

Yes. Use 18 AWG or larger wire that is free from defects like wear or cracks. The wiring requires only four wires, but running cable with more than four wires is recommended in case a wire is damaged during installation. User Guide, p. 25

Where is the terminal connector block on EcoNet UETST800SYS located?

On the back plate. Wires plug into terminal blocks and release by pressing down on the lever; the lever lowers when correctly installed. User Guide, p. 26

How do I set up the EcoNet UETST800SYS humidifier for the first time?

Adjust the humidify set point to TEST, select Humidify during Heat/Fan, then turn on continuous fan.

1. Navigate to Menu > Settings > Humidity > Humidification.
2. Enable Humidification if not already enabled.
3. Change the humidify set point to TEST.
4. Set Humidify During to Heat/Fan.
5. Go to Fan screen under Settings and turn on continuous fan.
6. The humidifier will run for 30 minutes, then the setting returns to 4% below the dehumidification set point. User Guide, p. 15

What does the EcoNet UETST800SYS Smart Control setting do for humidification?

Smart Control reduces humidification percentage based on indoor and outdoor temperatures to prevent window condensation during winter. Start with Low; choose Medium or High if condensation appears. User Guide, p. 15

How long does the EcoNet UETST800SYS humidifier test run last?

30 minutes, then the setting automatically returns to 4% below the dehumidification set point. User Guide, p. 15

Why isn't my EcoNet UETST800SYS heating or cooling responding?

Check the Service menu for active alerts or alarms. An alert icon appears in the upper right corner of the home screen when equipment issues are detected.

• Select the alert icon to view the specific alert and its description
• Common alerts include A021_A (restricted airflow, possible frozen coil) and A929_O (240V missing or inverter communication failure)
• Contact your preferred contractor or install professional regarding performance issues User Guide, p. 19

How do I reset service alerts on my EcoNet UETST800SYS?

Open the Service menu and select Alerts to view maintenance reminders.

1. Find the alert with the 'reset' label next to it
2. Tap 'reset' to clear the alert
3. The maintenance timer will start over User Guide, p. 19

What do error codes A021_A and A929_O mean on EcoNet UETST800SYS?

User Guide, p. 19

Is my EcoNet UETST800SYS water heater in vacation mode?

Open the Water Heating menu to check the current state and vacation settings. The vacation toggle shows 'Yes' or 'No', and displays the start and end dates. User Guide, p. 21