Levoit Aura Smart User manual

Aura™ Smart Thermostat
USER MANUAL
Questions or Concerns?
Please contact us Mon–Fri, 9:00 am–5:00 pm PST/PDT
at [email protected] or at [phone].
Model: LTM-A401S-WUS

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Table of Contents
Package Contents
Specifications
Safety Information
Installation Guide
Removing Your Old Thermostat
Installing Thermostat with a C Wire
Installing Thermostat without a C Wire
Wiring Diagrams
Getting Started
Overview of Thermostat Modes
VeSync App Setup
VeSync App Functions
Troubleshooting
Warranty Information
Customer Support
2
3
6
8
9
15
22
36
41
43
45
46
47
54
57
Package Contents
1 x Aura Smart Thermostat
1 x Backplate
1 x Power Extender Kit
4 x Screw
4 x Wall Anchor
1 x User Manual
1 x Wire Tag Set

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Specications
Power Supply AC 24V, 60Hz
Rated Power 3W
Dimensions 4.68 x 3.49 x 0.98 in / 11.88 x
8.86 x 2.50 cm
Weight 0.37 lb / 0.17 kg
Connectivity 2.4GHz Wi-Fi (802.11 b/g/n),
Zigbee 3.0 (for room sensors)
Temperature Range Setting Range: 32°–99°F /
0°–37°C
Display Range: 32°–104°F /
0°–40°C
Note: The thermostat settings
are limited to 99°F. However,
the thermostat can read up
to 104°F.

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Temperature Increments 1°F / 0.5°C
Relative Humidity (RH)
Display Range
0–99%
Relative Humidity (RH)
Increments
1%
Operating Conditions Temperature: 32°–122°F /
0°–50°C
Relative Humidity:
5–95% (non-condensing)
Storage Conditions Temperature: -4°–140°F /
-20°–60°C
Relative Humidity:
5–95% (non-condensing)
SPECIFICATIONS (CONT.)

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Compatibility
• 2H/2C Conventional Systems
• 4H/2C Heat Pump Systems or Dual Fuel Systems
• Systems with Rc and Rh Terminals (for separate heating and cooling power supplies)
Important:
This user manual only includes
installation and simple setup
instructions. For the extended
digital manual, which includes full
operating instructions and a user
guide, scan the QR code.
Note: To access additional smart functions, download the free
VeSync app (see page 45).
SPECIFICATIONS (CONT.)
You can also type the following link into a web browser:
www.levoit.com/ltms401swus/downloads

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SAFETY INFORMATION
READ AND SAVE THESE INSTRUCTIONS
Please read and follow all instructions and safety guidelines in this manual.
• Before installing and wiring, TURN OFF your HVAC system by turning o the appropriate switch or locking the appropriate
circuit breaker in the OFF position.
• Only install the thermostat if you are comfortable with electrical work. If not, contact a qualified electrician. Improper
installation will increase risk of fire, electric shock, and other injuries.
• The thermostat must be installed and used in accordance with the National Electric Code (NEC) or your local electrical code.
• Do not install the thermostat with wet hands.
Installation
Note: Levoit cannot guarantee the quality of installation, and cannot cover associated costs.
• Only install and use the thermostat indoors, in a dry location, and avoiding extreme heat and freezing temperatures.
• Do not modify the thermostat hardware or software.
• Not for commercial use. Household use only.
General Safety

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A. Smart Thermostat
B. Backplate
C. Power Extender Kit (PEK)
Function Diagram
A
B
C

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• Electric drill
• 3/16-inch drill bit
• Small flat head screwdriver
• Philips head screwdriver
What You’ll Need
INSTALLATION GUIDE

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1. Turn o your HVAC system
WARNING: For your safety, you must turn o your HVAC system before removing your old thermostat.
Every HVAC system is dierent, but usually you turn o a master switch or switch the system o in your home’s breaker
box. [Figure 1.1]
Note: The master switch or breaker box is often found in your basement, attic, garage, or utility closet.
Removing Your Old Thermostat
Confirm that the HVAC system is turned o by adjusting the temperature on the thermostat, waiting a few minutes, and
making sure that the HVAC does not turn on.
TURN OFF
Figure 1.1
Breaker Box Switch

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REMOVING YOUR OLD THERMOSTAT (CONT.)
2. Remove your old thermostat
Remove your old thermostat from the wall. Every thermostat is dierent, but usually you will need to push a tab on the
edge of the thermostat and separate the thermostat from the backplate. [Figure 1.2]
Note: Only remove the old thermostat. Do not remove the backplate from the wall yet.
Figure 1.2

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REMOVING YOUR OLD THERMOSTAT (CONT.)
3. Check for compatibility
Inspect the wires leading into the backplate.
If you find thick wires with wire nuts, or if the voltage of your HVAC system is 120V or higher, then your system
is not compatible with this smart thermostat. [Figure 1.3]
Contact Customer Support (see page 57).
Figure 1.3
or
120V
OR
HIGHER

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REMOVING YOUR OLD THERMOSTAT (CONT.)
4. Take a photo
Before removing wires, take a picture of how the wires connect to the terminal of your old thermostat. [Figure 1.4]
You may need to reference this photo later.
Figure 1.4

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REMOVING YOUR OLD THERMOSTAT (CONT.)
5. Find the Thermostat Labels in the included wire tag set. Label the wires according to the corresponding terminals.
[Figure 1.5]
Note: If you are unsure whether your system has a heat pump, we recommend that you research your HVAC
system online or contact Customer Support (see page 57).
Figure 1.6
Figure 1.5
If there are any jumper wires (wires connecting dierent terminals together), do not label these wires. [Figure 1.6]
Remove them and store them with your old thermostat.
The terminals on your old thermostat may already have 2 dierent sets of labeling–one set for a conventional HVAC
system and one set for a heat pump system. If your system has a heat pump, make sure to follow the heat pump labeling.
REMOVE
RC RH Y2 W1 W2 CO/B
Y1
G

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REMOVING YOUR OLD THERMOSTAT (CONT.)
6. Carefully disconnect the wires. Each thermostat is dierent, but usually you use a Philips head screwdriver to loosen a
screw or press a release button to remove the wire.
Important:
• Check if you have a C wire connected to your old thermostat. The C wire is used to provide power to the
thermostat. [Figure 1.7]
• If you have a C wire, go to Installing Thermostat with a C Wire (page 15).
• If you do not have a C wire, go to Installing Thermostat without a C Wire (page 22).
Figure 1.7

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Installing Thermostat with a C Wire:
1. Remove the old backplate
Unscrew the old backplate from the wall. [Figure 2.1] Hold the wires and carefully pull the backplate from the wall, making
sure the wires do not fall into the wall.
Note: If your system has a C wire, you do not need to install the power extender kit (PEK). The thermostat will use the
C wire for power.
Figure 2.1

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INSTALLING THERMOSTAT WITH A C WIRE (CONT.)
2. Attach the new backplate
Insert the wires through the hole in the new backplate. Use an electric drill to attach the backplate to the wall with the
provided wall anchors and screws. [Figure 2.2]
Figure 2.2

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INSTALLING THERMOSTAT WITH A C WIRE (CONT.)
3. Connect the wires
Connect the wires to the corresponding terminals on the backplate (see Wiring Diagrams, page 36). [Figure 2.3]
When you are finished, take a picture.
You may need to refer to the connections in this photo while setting up the thermostat.
Figure 2.3
Rc Rh W1 W2 Y1 Y2 O/B PEK
CG
CG

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INSTALLING THERMOSTAT WITH A C WIRE (CONT.)
• If you have more than one R wire (R wires include R, Rc, and Rh):
• Connect the R or Rc wire to the Rc terminal, and connect the Rh wire to the Rh terminal.
• If you only have one R wire (R wires include R, Rc, and Rh):
• Connect the R wire—R, Rc, or Rh—to the Rc terminal.
About R Wires:

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INSTALLING THERMOSTAT WITH A C WIRE (CONT.)
4. Adjust the jumper (DIP switch)
Turn the thermostat over. Adjust the jumper switch as follows [Figure 2.4]:
• If you have connected wires to both the Rc and Rh terminals on the backplate, then adjust the jumper switch to OFF.
• If not, then adjust the jumper switch to ON.
Figure 2.4

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INSTALLING THERMOSTAT WITH A C WIRE (CONT.)
5. Place the thermostat
Make sure all wiring is pushed inside the wall. Carefully press the thermostat into the backplate until it clicks securely into
place. [Figure 2.5]
Note: Cover any gaps in the wall around the thermostat. Airow from holes may aect temperature readings.
Figure 2.5