Lux 52126 - Manuals

• The thermostat requires batteries to operate and failure or sub-standard performance of the batteries may impair or prevent the correctoperation of the thermostat. Use Duracell or Energizer alkaline batteriesONLY for all Lux thermostats requiring batteries. BE SURE TO CHANGETHE BATTERIES AT LEAST ...

9 W1 4 W X F G B* W2 RH V R W1 A W2 O B C G Y RC RH 1-STAGE OR 2-STAGE, HEATING ONLY (INCLUDING MILLIVOLT) (2-WIRE HEAT USE “RH” & “W1”) Factory RH-RC Jumper Wire Installed #1 2, 3, 4, 5 WIRES C H E AT E R S TAG E 1 S TAG E 2 FA N S YS T E M 2 4 V T R A N S F O R M E R SYSTEM COMMON FAN WIRE MAY...

10 X B* C RH V R W1 4 W A W1 A W2 O B C G Y RC RH HOT WATER HEATING ONLY (WITH A 3-WIRE ZONE VALVE) Factory RH-RC Jumper Wire Installed #2 3, 4 WIRES NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC S YS T E M 2 4 V T R A N S F O R M E R SYSTEM COMMON OPEN = Hea...

14 X B* C R V RH R V RC Y1 6 Y F G W1 4 W W1 A W2 O B C G Y RC RH 1-STAGE HEATING AND 1-STAGE COOLING WITH TWO SEPARATE 24V TRANSFORMERS Factory RH-RC Jumper Wire REMOVED #6 FA N H E AT 2 4 V T R A N S F O R M E R CO O L 2 4 V T R A N S F O R M E R SYSTEM COMMON H E AT E R A I R CO N D I T I O N E R...

15 O X F G Y1 6 Y B* RC V R W1 A W2 O B C G Y RC RH SINGLE-STAGE HEAT PUMP SYSTEM WITH NO AUX OR EMERGENCY HEAT #7 C FA N S YS T E M 2 4 V T R A N S F O R M E R SYSTEM COMMON 4, 5 WIRES NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRAY TERMINAL LETTERS ARE BRAND SPECIFIC OP T I ONA L H E AT P U M P...

16 CUSTOMER INSTALLED Y-W1 Jumper Wire X B* C W3 W W2 O F G Y1 6 Y RC V R W1 A W2 O B C G Y RC RH 2-HEAT / 1-COOL, HEAT PUMP SYSTEM WITH AUX AND EMERGENCY HEAT Factory RH-RC Jumper Wire Installed #8 FA N S YS T E M 2 4 V T R A N S F O R M E R SYSTEM COMMON 5, 6 WIRES NOTE: THE BLACK TERMINAL LETTERS...

On the thermostat’s circuit board, there is a row of DIP switches, labeled#1 through #8. The position of these switches will change how thethermostat operates, and also how information is conveyed to you on theLCD display screen. If you make any changes to these options, thechanges are not recognize...

SWITCH #8 (BATTERY MONITOR): [OFF/DOWN = ON, default] This setting, regularly monitors the battery level, and shows “LOW BAT” on thescreen if the batteries need to be replaced. Use this setting at all timeswhen batteries are present in the thermostat. [ON/UP = OFF] This settingonly applies if you ar...

These items below are all located behind the door on the front of thethermostat. To open the door, pull outwards using the small indentationin the center of the top edge of the thermostat housing. HEAT / OFF / COOL, SYSTEM MODE SWITCH: Set this switch to HEAT to control your heating system, and COOL...

UP / DOWN BUTTONS: The UP and DOWN buttons are used to adjust any item that can be changed by the user. Examples are the set temperatures,clock times, and days of the week. In many cases, an item may beflashing if it can currently be adjusted. HOLD BUTTON: This button activates and deactivates the m...

HEATING AND COOLING : Basic operation of your heating or cooling system can be obtained with the Set Slide Switch in the RUN position andchoosing either HEAT or COOL on the System Mode switch. Thetemperature can be adjusted using the UP and DOWN buttons. When thethermostat is first powered up, it wi...

By default, this thermostat has 4 separate program periods for both Heatand Cool mode, they are: MORN, DAY, EVE, and NITE. Each period endsat the start time of the following period. The heat programs are set inHEAT mode, and the cool programs are set in COOL mode. NOTE: If the thermostat is configur...

TEMPERATURE SWING AND OFFSET SETTING: A thermostat works by turning your heating or cooling system on and off whenever the roomtemperature varies from the desired set-point temperature. The amountof this variation is called the swing. Generally your system should cycleon about 3 to 6 times per hour....

26 70˚F Set Temperature 71 DEGREES (F) ** = Only applies if a second heat stage is present 70 69 68 67 66 65 Swing Setting= #2 (+/- 0.5˚F) Cut-In / Cut-Out (1 st Stage) (2 nd Stage) ** Cut-In / Cut-Out Offset **Setting=4˚F degrees

TEMPERATURE CALIBRATION: The internal temperature sensor in this thermostat is accurately calibrated at the factory, and in most casesalterations to this setting should not be needed. The TemperatureCalibration feature allows you to manually offset the measuredtemperature by as much as plus or minus...

AIR FILTER MONITOR: In most systems that use a blower fan and air ducts, there is an air filter that is either replaceable or requires cleaning.The filter is usually located in the air handler, where the blower fan is.This thermostat feature assists you with keeping track of propermaintenance and/or...

HARDWARE RESET: The Hardware Reset button (labeled “HW RST”) is a small round pushbutton that is located towards the right side ofthe circuit board, just below the battery holder.Pressing this button will cause the LCD displayscreen to become fully populated, the heatingand cooling load relays to cy...

COMPRESSOR PROTECTION BYPASS: This optional feature permits the installer or service technician to temporarily disable the built incompressor protection delays. This is most useful for diagnosing andtesting the heating and cooling systems after installation is complete, andshould not be used during ...

M t . L a u r e l , N e w J e r s e y 0 8 0 5 4 , U S A h t t p : / / w w w. l u x p r o p r o d u c t s . c o m 8 5 6 - 2 3 4 - 8 8 0 3 34 HOLD 74 F ˚ 72 F ˚ 5:36 P HEAT T U D AY S ET R OOM FAN