Source 1 LX Series

All LX thermostats offer simple as you want operation and a bi-color LED to indicate a cooling or heating demand. They also come switchable from auto-changeover to non-auto changeover, heat only or cool only. For easy operation the new LX series thermostat can be controlled by only 3 buttons.

Under the front cover users will find more options for complete comfort and control. From here you can access the Fan, Program, and Outdoor temperature buttons. Additional advanced options and setup buttons are discreetly located under a concealed drop down door.

Source 1 LX Series Features

S1-THSU32HP7S, S1-THSU32P7S, S1-THSU21P1S

Programmable
Backlit display
Adjustable backlight intensity
Customizable scrolling marquee with English, Spanish, and French language support
Customizable service alerts and error messages
Switchable manual and auto changeover
Morning, day, evening, and night time periods
Outdoor sensor ready
Programmer compatible
Wireless accessories
Service filter reminder
UV lamp replacement reminder
Aux heat indicator
Random start
Dual units (F or C)
Dry contact input for condensate overflow

S1-THSU32HP7S

[Manual & Installation]

[Submittal]

The S1-THSU32HP7S is our high end residential thermostat. What sets the this thermostat apart from the rest of the residential LX thermostats is its ability to control and monitor humidity. This thermostat is packed with a rich feature set. It includes such features as outdoor temperature sensing, averaging thermostat's temperature sensor with a wireless remote temperature sensor, and is dual fuel compatible.

Switchable 1 day, 5/2 day, 7 day programmable or non-programmable
Backlit display
Adjustable backlight intensity
Up to 4 stages of heating, 2 stages of cooling
Customizable scrolling marquee
Customizable service alerts and error messages
Switchable manual and auto changeover
Morning, day, evening, and night time periods
Outdoor sensor ready with display of hi/lo daily temperatures
Programmer compatible
Wireless accessories including add-a-wireless thermostat
Fault input
Service filter reminder
UV lamp replacement reminder
Can control to temperature from optional remote sensor
Aux heat indicator
Random start
Dual units (F or C)
Heat pump compatible
Backlit, color-coded keys and legends
Large, easy to read backlit display
Adjustable interstage timers and deadbands
LED indicator glows green or red to indicate cooling or heating
Service filter and UV light indicators
Non-volatile memory
Keypad lock
Vacation mode to allow up to 99 days of energy savings
Dry contact input for condensate overflow
Setpoint limiting
Smart recovery for morning warmup for heatpump applications
Dual fuel
Can lock out strip heat above desired outdoor temperatures
Humidity module equipped, performs humidification, dehumidification and reheat
Auxiliary output can be controlled based on temperature, time or other events
Keeps separate track of heating and cooling run times
Programmable fan option turns fan on periodically based on special program, ideal for electronic air cleaners

S1-THSU32P7S

[Manual & Installation]

[Submittal]

The S1-THSU32P7S is our mid-tier residential thermostat. As with the high end residential thermostat, this thermostat enjoys a rich feature set that fits almost every need where humidity control is not required. It includes such features as outdoor temperature sensing and averaging thermostat's temperature sensor with a wireless remote temperature sensor.

Switchable 1 day, 5/2 day, 7 day programmable or non-programmable
Backlit display
Adjustable backlight intensity
Up to 4 stages of heating, 2 stages of cooling
Customizable scrolling marquee
Customizable service alerts and error messages
Switchable manual and auto changeover
Morning, day, evening, and night time periods
Outdoor sensor ready with display of hi/lo daily temperatures
Programmer compatible
Wireless accessories including add-a-wireless thermostat
Fault input
Service filter reminder
UV lamp replacement reminder
Can control to temperature from optional remote sensor
Aux heat indicator
Random start
Dual units (F or C)
Heat pump compatible
Backlit, color-coded keys and legends
Large, easy to read backlit display
Adjustable interstage timers and deadbands
LED indicator glows green or red to indicate cooling or heating
Service filter and UV light indicators
Non-volatile memory
Keypad lock
Vacation mode to allow up to 99 days of energy savings
Dry contact input for condensate overflow
Setpoint limiting
Smart recovery for morning warmup for heatpump applications
Programmable fan option turns fan on periodically based on special program, ideal for electronic air cleaners

S1-THSU21P1S

[Manual & Installation]

[Submittal]

The S1-THSU21P1S is our value minded residential LX thermostat. This thermostat can be configured to be a single day programmable or non-programmable thermostat. It can control up to 2 stages of heat and 1 stage of cooling. The S1-THSU21P1S may also display the outdoor temperature when paired with the optional LX Wireless Temperature Sensor.

Switchable single day programmable or non-programmable
Up to 2 stages of heating, 1 stage of cooling
Backlit display
Adjustable backlight intensity
Customizable scrolling marquee
Customizable service alerts and error messages
Switchable manual and auto changeover
Morning, day, evening, and night time periods
Outdoor sensor ready
Programmer compatible
Wireless accessories
Service filter reminder
UV lamp replacement reminder
Aux heat indicator
Random start
Dual units (F or C)
Heat pump compatible
Backlit, color-coded keys and legends
Large, easy to read backlit display
Configurable programmable or non-programmable
Configurable manual or auto changeover
LED indicator glows green or red to indicate cooling or heating
Service filter and UV light indicators
Non-volatile memory
Keypad lock
Dry contact input for condensate overflow