LUX CS1 User manual

Installation Manual

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CS1 is ready to make your home energy efficient and more

comfortable. Follow these easy steps to get started.

LUX Products offers installation and product videos

Please visit LuxProducts.com/videos or visit our YouTube

channel LUX Products Corporation. To contact LUX

Technical Support, please call 856.234.8803.

For more information about installation settings, please visit

LuxProducts.com/CS1manual

Para ver estas instrucciones en español, por favor visite

LuxProducts.com/CS1manualsSP

This manual is a comprehensive guide to installation and wiring.

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Table of Contents

1. Start Here ......................................................................................... 2-5

2. Installing with a C-Wire..............................................................6-9

3. Installing with Power Wire (Included) .............................10-13

4. Installing with LUX Power Bridge (Not Included) ..... 14-17

5. HVAC System Setup................................................................. 18-21

6. Connecting to the Network................................................ 22-25

7. Appendix ......................................................................................26-31

1. START HERE

INSIDE THE BOX:

CS1 Thermostat

Power Wire

Mounting Screws

Wall Anchors

Wire Labels

Wall Plate

Screwdriver

Required Tools:

-Phillips Screwdriver -Smartphone

Optional Tools:

-Power Drill -Wire Stripper

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4 | 856.234.8803

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.

HIGH

VOLTAGE

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1. START HERE

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.

Step 1.6: Confirm that you have a C-Wire. If you do, please turn

to the next page. If you do not, please skip ahead to page 10.

111

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.

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6 | 856.234.8803

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.

STOP

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.

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INSTALLATION WITH

C-WIRE2.

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.

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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.

O/B

1 4 2

O/B

1 4 2

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