LUX CS1 - Smart Programmable Digital Wi-Fi Thermostat, Android and iOS App Compatible Manual

INSIDE THE BOX

1. CS1 Thermostat
2. Power Wire
3. Mounting Screws
4. Wall Anchors
5. Wire Labels
6. Wall Plate
7. Screwdriver

Required Tools:

• Phillips Screwdriver
• Smartphone

Optional Tools:

• Power Drill
• Wire Stripper

START HERE

Step 1.1: Download the LUX Products App to your mobile device and create an account.

Step 1.2: Now set your phone aside and turn off the power at the circuit breaker to both your heating and cooling systems before performing any wiring.

Step 1.3: Confirm that your heating and cooling system is powered down by changing the temperature on your thermostat.
Hint: Your system should not make any noise and you should not feel any air exiting your vents.

Step 1.4: Remove the front of your old thermostat from its base. If you see thick black wires, wire nuts, or any labels that say 120-240VAC or High Voltage, your system is not compatible with CS1. Please call LUX Technical Support at 856.234.8803 before proceeding with your installation. If you do not see any high voltage labels or wires, you can continue with your installation.

Step 1.5: Use the included wire labels to mark which wire is connected to each terminal in your old thermostat.
Take a picture of your current wiring layout, you will need this picture later.

NOTE: If you have any wires at your thermostat that are not coming from the wall, please leave those wires in your old thermostat. They are not needed for installing your CS1.

Step 1.6: Confirm that you have a C-Wire.

INSTALLATION WITH C-WIRE

Installing with a C-wire

Before starting

Turn off the power at the circuit breaker to both your heating and cooling systems before performing any wiring.

Step 2.1: Identify your system configuration (see wiring diagrams in appendix). Potential configurations include:

• Conventional 1H/1C (Y, G, W, R, C)
• Conventional 2H/1C (Y, G, W, W2, R, C)
• Heat Pump Single-Stage (Y, G, R, O/B, C)
• Heat Pump with auxiliary heat or dual fuel (Y, G, R, O/B, W, C) If you have only one R wire, please use the RH terminal. If you have a different configuration other than what is listed above, please call LUX Technical Support for help with your installation.

Step 2.2: Remove each wire from its terminal – make sure that they don't fall down back into the wall.

Step 2.3: Remove the mounting screws from the base of the old thermostat. Remove the base from the wall.

Step 2.4: If you would like to use the trim plate or wall anchors, you can install them now.

Step 2.5: Separate CS1 from its base, pull the halves apart from the bottom edge. Pull the wires from your wall through the center hole of the CS1 base. Secure the base to the wall using the included mounting hardware.

Option 1 - Conventional (furnace) Systems:
Step 2.6(f): Following the terminal labels marked "Conventional" on the thermostat base, loosen the screw and insert each labeled wire into the top hole of the corresponding terminal, tighten the screw.

Step 2.7(f): If you have both an RC and RH wire present, then remove the red cap located on the left side of the terminal pins. You can now skip ahead to step 2.8.

Option 2 - Heat Pump Systems:
Step 2.6(hp): Following the terminal labels marked "Heat Pump" on the thermostat base and referencing your wiring photo, loosen the screw and insert each labeled wire into the top hole of the corresponding terminal, tighten the screw.
If your old thermostat did not have a W1 wire but did have a W2 wire, please insert the W2 wire into the W1 terminal.

Step 2.7(hp): If you have both an O wire and a B wire (i.e. in some systems), please install the B wire to the "C" terminal.
For more detailed directions, please see the wiring diagrams in the appendix or call LUX Technical Support.

Step 2.8: Securely fasten CS1 onto its base. Once it has clicked into place, return power to your heating and cooling system.

Step 2.9: After your thermostat powers up, you are ready to configure CS1 for your heating and cooling system and connect to a wireless network.
Please skip ahead to the "System Setup" section of this manual.

Installing without a C-Wire Using the LUX Power Wire (included)

1. Install and wire CS1
   
2. Install LUX Power Wire (at your furnace)
   

For installation without C-wire, you will need to access your furnace.
NOTE: DO NOT USE P-WIRE IF YOU HAVE AN ELECTRIC FURNACE OR HEAT PUMP

Before starting

Turn off the power at the circuit breaker to both your heating and cooling systems before performing any wiring.
Hint: helpful videos showing how to wire a thermostat with the LUX Power Wire are available at:
LuxProducts.com/videos

INSTALLATION WITH P-WIRE

Step 3.1: Starting at your thermostat, confirm that you have one of the system configurations below:

• Conventional 1H/1C (Y, G, W, R)
• Conventional 2H/1C (Y, G, W1, W2, R)

If you have a different configuration other than what is listed above or if you have an electric furnace, please call LUX Technical Support for help with your installation.

Step 3.2: Remove each wire from its terminal – make sure that they do not fall down back into the wall.

Step 3.3: Remove the mounting screws from the base of the old thermostat. Remove the base from the wall.

Step 3.4: If you would like to use the trim plate or wall anchors, you can install them now.

Step 3.5: Separate CS1 from its base, pull the halves apart from the bottom edge. Pull the wires from your wall through the center hole of the CS1 base. Secure the base to the wall using the included mounting hardware.

Step 3.6: Following the terminal labels marked "Conventional" on the thermostat base, loosen the screw and insert each labeled wire into the top hole of the corresponding terminal.
Connect as follows:
Y Wire → Y1 Terminal
W Wire → W1 Terminal
R Wire → RH Terminal
G Wire → C Terminal

NOTE: The G wire was previously in the G terminal, it will now go to the C Terminal on CS1.

Step 3.7: Securely fasten CS1 onto its base

Step 3.8: Go to your furnace – remove the door or panel and locate your control board or transformer. In most cases, there should be four wires running from the furnace to your thermostat – Y, G, W, and R. If you have additional wires, leave them as is.

Step 3.9:

1. Remove the G Wire from the Fan Terminal at your furnace, insert the wire into your Furnace Transformer Terminal
2. Insert one end of the LUX Power Wire into the now empty Fan Terminal and the other end into the Cool Terminal (with the Y Wire).

Step 3.10: If you had to remove a panel or door to access your control panel, replace it now.

Step 3.11: Return power to your heating and cooling system. If your system, including your thermostat, does not power up please call LUX Technical Support.
After CS1 powers up, you are ready to configure it for your heating and cooling system.

Installing without a C-Wire Using the LUX Power Bridge (sold separately)

1. Install and wire CS1
   
2. Install LUX Power Bridge (at your furnace)
   

LUX Power Bridge available at: Shop. LUXProducts.com/PowerBridge
For installation without C-wire, you will need to access your furnace.

Before starting

Turn off the power at the circuit breaker to both your heating and cooling systems before performing any wiring.

Installation without C-wire
Hint: helpful videos showing how to wire a thermostat with the LUX Power Bridge are available at: LuxProducts.com/videos

INSTALLATION WITH P-BRIDGE

Step 4.1: Starting at your thermostat, confirm that you have one of the system configurations below:

• Conventional 1H/1C (Y, G, W, R)
• Conventional 2H/1C (Y, G, W1, W2, R)

If you have a different configuration other than what is listed above, please call LUX Technical Support for help with your installation.

Step 4.2: Remove each wire from its terminal – make sure that they do not fall down back into the wall.

Step 4.3: Remove the mounting screws from the base of the old thermostat. Remove the base from the wall.

Step 4.4: If you would like to use the trim plate or wall anchors, you can install them now.

Step 4.5: Separate CS1 from its base, pull the halves apart from the bottom edge. Pull the wires from your wall through the center hole of the CS1 base. Secure the base to the wall using the included mounting hardware.

Step 4.6: Following the terminal labels marked "Power Bridge" on the thermostat base, loosen the screw and insert each labeled wire into the top hole of the corresponding terminal.
Connect as follows:
Y Wire → Terminal 1
W Wire → Terminal 2
R Wire → Terminal 3
G Wire → Terminal 4

Step 4.7: Securely fasten CS1 onto its base

Step 4.8: Go to your furnace – remove the door or panel and locate your control board or transformer. In most cases, there should be four wires running from the furnace to your thermostat – Y, G, W, and R. If you have additional wires, leave them as is.

Step 4.9:

1. Matching the letters, label the wires connected to your furnace with the included wire labels for the Power Bridge.
   Take a picture of the wiring at your control board.
   
2. Disconnect these wires from the control board.
   
3. Open the Power Bridge and insert each of your old wires into the corresponding numbered terminals in the Power Bridge.
   
4. Finally, insert the Power Bridge wires (with the colored labels) into the corresponding terminals on your furnace control board.
   

Step 4.10: Secure the LUX Power Bridge to your furnace. If you had to remove a panel or door to access your control panel, replace it now.

Step 4.11: Return power to your heating and cooling system. If your system, including your thermostat, does not power up please call LUX Technical Support.
After CS1 powers up, you are ready to configure it for your heating and cooling system.

HVAC SYSTEM SETUP

Setup - Selecting your System Type

Step 5.1: After your thermostat powers up, your CS1 will auto scan the terminal pins to determine what type of HVAC system you have. If there is more than one possible system type, you will need to select your system type.

Step 5.2: Use the Up and Down arrows to cycle through the system options. With your system type displayed, press the center button to continue to Network Setup.

System options

Electric Furnace:
Electric system with fan. Thermostat calls for fan to run with heat.

Gas Furnace:
Gas system with fan. Thermostat calls for fan to run with heat.

Air Conditioning Only:
Cooling Only. Thermostat calls for fan to run with cool.

Boiler:
Boiler heating system with no fan connected.

Heat Pump:
Heat pump system, thermostat calls for fan to run with heat or cool.

NOTE: If you have a heat pump system, press the center button to select. CS1 will now ask you to confirm your valve type. Use the up and down arrows to toggle between O & B Valves, press the center button to select:

Heat With P-Wire:
This represents a furnace heat system utilizing the P-Wire. CS1 will toggle between the screens below:

Cool With P-Wire:
This represents an air conditioning system utilizing the P-Wire. CS1 will toggle between the screens below:

NOTE: When using the Power Wire, your system will only call for fan when the device calls for heat or cool, respectively. You will not be able to run your fan continuously or on internal air quality mode. If you would like to maintain full fan control, please consider purchasing a LUX Power bridge at:
Shop. LUXProducts.com/PowerBridge

CONNECTING TO THE NETWORK

Setup - Connecting to the Network

Step 6.1: After you confirm your system type, you will be given the option to Setup or Skip WiFi Configuration. Use the up and down buttons to change options and press center button to confirm your selection.
Select "Setup" to connect to a network.

Step 6.2: After selecting "Setup", CS1 will display: "Step 1: App". Make sure that you have downloaded the LUX Smart thermostat to your smartphone.

Step 6.3: With "Step 1: App" displayed on screen, push the center button to continue.

Step 6.4: When your device displays "Step 2: Scan", CS1 will scan for surrounding WiFi networks.

Step 6.5: When your device displays "Step 3: Phone", You will need to go to the WiFi settings in your smartphone and select the CS1 WiFi network (e.g. LUX-CS1xx-xx). The network name and password are on the back of the device and on a label on the box.

NOTE: If you have already recycled the box, please return to Step 2.8 to take a photo of the WiFi information that is on a label on the base of your thermostat.

Step 6.6: After you have connected to the CS1 WiFi Network, switch back to the LUX app. Select your home WiFi network from the list of available networks and enter the password. Your device will display "Step 3:WiFi" when it is ready to connect to your home WiFi network.

Step 6.7: Your device will automatically display: "Step 4: Launch" when it is attempting to connect to the internet.

Step 6.8: After your device has successfully connected to the internet, you will see "Step 4: Done", your device will then switch to the standard operations screen.

NOTE: CS1 cannot be used with a 5GHz WiFi network. Please ensure that your wireless network is set to 2.4GHz and that the security settings are set to open or WPA2. For more information about how to check your network settings, please check your router's documentation or label.
NOTE: Open the LUX App. If you are adding your first device, select the CS1 shaped icon. If you are adding an additional device, start from the "Locations" menu and select the "+" icon in the top left corner within your current location. For iOS users, we recommend using an Apple® device with iOS8.0 or later.

If you need to cancel the joining process at any time, simply press and hold the center button for 5 seconds.

Congratulations!
When you see the thermostat's home screen with a WiFi icon, it means you are connected. Installation is complete and your CS1 is ready to go. Now let's save some energy and make your home more comfortable. You can now control your comfort from anywhere with an internet connection!

Diagrams

Conventional System With C-Wire Wiring Diagram

NOTES:

• The W2 terminal is used for 2 stage heating systems only
• If you have both an RH and RC wire, please remove the red cap from the back of the thermostat

Heat Pump System With C-Wire Wiring Diagram

NOTES:

• The W1 terminal is used for Auxiliary/Emergency heat or on Dual Fuel systems

Conventional System Without C-Wire (BEFORE Power Wire) Wiring Diagram

NOTES:

• At your thermostat, you will move the G Wire (dark) to the C Terminal.

Conventional System Without C-Wire (AFTER Power Wire) Wiring Diagram

NOTES:

• The G Wire (dark) that previously went to the Fan Terminal now connects to the Furnace Transformer
• The Power Wire (white) connects to both the Fan Terminal as well as the Cool Terminal (with the Y Wire)

LUX Power Bridge Wiring Diagram

NOTES:

• If you have a heat pump or dual transformer system, please call LUX Tech support.
• If you have any wires on your furnace not shown here, please leave them as is.

Johnson Controls, Inc.
Philadelphia, PA 19112 USA
LuxProducts.com