LUX PSP511Ca Programmable Thermostat Instruction Manual

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TEMPERATURE HOLD  

SETUP OPTIONS  

A Temperature Hold is similar to an override, but is used for maintaining a  

constant set temperature for a longer time duration. Once a Hold is initiated, the  

thermostat will maintain the Hold set temperature indefinitely. A temperature  

hold may be used for days, weeks, or even months at a time. To enter a Hold,  

push the HOLD button once, and the word Hold will appear in the temperature  

portion of the screen, along with the set temperature flashing. While the set  

temperature is flashing, push either the UP or DOWN button to the new desired  

set temperature value. To cancel a Hold, press and release the HOLD button once  

again, rotate the dial, or change the Temperature mode switch.  

INSTALLATION AND  

OPERATING INSTRUCTIONS  

SYSTEM TYPE SETTING:  

This setting tells the thermostat about the type of heating and cooling equipment that  

it is controlling, so that the system is operated properly. There are two operating  

modes based on your system type, “Furnace (Fn)” or “Heat Pump (HP)”. If you have a  

Furnace, ensure this is set to "Fn". If you have a Heat Pump, ensure this is set to  

"HP".  

PSP511Ca / PSP511LCa  

Programmable Thermostat  

Install two new Energizer^®  

or DURACELL^® "AA" size alkaline batteries before  

WARNING: Use Energizer^® or DURACELL^® Alkaline Batteries Only.  

Energizer^® is a registered trademark of Eveready Battery Company, Inc.  

DURACELL^® is a registered trademark of The Gillette Company, Inc.  

continuing further. Ensure that the batteries are installed in the proper direction as per  

the markings shown in the battery tray. With the thermostat powered by batteries,  

press and hold the HOLD button, and then press the Hardware Reset button once on  

the back of the unit’s circuit board. Continue to hold the HOLD button until “SYS” is  

shown on the LCD screen. Use the UP or DOWN buttons to toggle between “Fn” and  

“HP” modes. When you are finished, press NEXT. This setting is now complete, and  

will not change unless you adjust it again. This is true even in the event of a power  

failure, or if a reset button is pressed.  

AIR FILTER MONITOR  

The Air Filter Monitor counts the number of days, and the amount of usage since  

your furnace filter has been replaced. In Run mode, the CHANGE FILTER indicator  

will appear when the remaining filter days have reached zero and the filter  

should be changed. To set and use the Air Filter Monitor, turn the rotary dial to  

AIR FILTER. Press NEXT and the Filter Days Left value will start flashing. Use  

the UP or DOWN buttons to select the number of days of filter life that your filter  

is rated for. Setting this value to OFF will disable the filter monitor. Return the  

dial to the RUN position once you are finished setting the filter life. To monitor  

the Filter Days Left or Filter Percent Left, turn the dial to the AIR FILTER position.  

The amount of filter life remaining will be shown in the clock portion of the  

display screen. Return the dial to the RUN position once you are finished viewing  

the filter life remaining.  

Mt. Laurel, New Jersey 08054, USA  

52074  

http://www.luxproproducts.com  

Thank you for your confidence in our product. To obtain the best results from your  

investment, please read these instructions and acquaint yourself with your purchase.  

NOTE:  

All of the settings, options, and components listed in this section are located on the  

rear of the thermostat, on the circuit board.  

COMPATIBILITY  

This thermostat can be used with most single stage 24 volt: gas, oil or electric heating  

and/or cooling systems, single stage heat pumps, or gas Millivolt heating systems. It  

cannot be used with 3-wire zone valves, 120 volt heating systems, or multi-stage heat  

pumps. Ask your dealer for other LUXPRO thermostats to control those systems.  

HARDWARE RESET  

The hardware reset is a push button that is located on the right edge of the circuit  

board, just above the battery location. This reset button is used by the thermostat to  

reset the unit’s clock, and read the position of all of the option switches. When any of  

the following items are changed, the hardware reset button must be pushed for the  

change to be recognized. User temperature programs are not erased when a hardware  

reset is performed.  

RESET FILTER COUNTER  

Once you have replaced your filter, the filter life counter is reset back to its full  

amount remaining value by turning the dial to AIR FILTER and pressing the UP  

and DOWN buttons together at the same time. NOTE: The counter is also reset  

by changing the filter setting value, as described above, to a different number of  

days.  

FEATURES  

LCD - Liquid Crystal Display  

Set Temperature Buttons  

Fan Mode  

Switch  

HEAT FAN CONTROL  

This setting defines the fan operation while in Heat mode, and when the fan is in Auto.  

This setting has no effect while the thermostat is in Cool mode, or if there is no blower  

fan connected to the “G” wire terminal.  

ADVANCED FEATURES  

TU  

SWING SETTING  

DAY  

HEAT  

FAN  

PM  

A thermostat works by turning your heating or cooling system on and off  

whenever the room temperature varies from the set-point temperature. The  

amount of this variation is called the “swing.” Your system should cycle on about  

3 to 6 times per hour. A smaller swing number increases the number of cycles  

per hour, so the room temperature is more precise and constant. A larger swing  

number decreases the number of cycles per hour, but saves energy in most  

cases. To change the Swing setting, turn the dial to RUN mode. Hold down the  

NEXT button and push the HOLD button once, then let go of both. The words  

SWING and SET will appear on the screen with a number. Use the UP/DOWN  

buttons to change the number value between 1 and 9. Number 1 is the default  

setting. Press the NEXT button to accept the setting and return to normal Run  

mode.  

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Software  

Reset Button  

5 36 72  

GAS: Use this setting if you have a Gas or Oil heating  

system. In the GAS setting, the heating system itself  

controls the operation of the blower fan (if equipped).  

ELECTRIC: Use this setting if you have a Heat Pump or  

Electric heating system. In the ELEC setting, the heating  

system requires the thermostat to control the operation of  

Temperature  

Mode Switch  

JP1  

FAN  

WEEKEND  

PROGRAM  

FAN  

TEMERATURE  

HEAT  

WEEKDAY  

PROGRAM  

RESET  

AUTO  

ON  

OFF  

COOL  

NEXT  

R U N  

SET  

DAY/TIME  

LUX  

Quick Reference  

Door Instructions  

HOLD  

AIR FILTER  

Speed  

Dial^®  

LUX  

PSP511Ca  

ELECTRIC  

GAS  

the blower fan.  

The following option settings are all located within a group of small switches labeled 1  

through 4 as shown below, and are located in the center of the circuit board.  

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Small elegant design  

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F/C Temperature Display  

12/24 Hr Clock Display  

Exclusive LUX Speed Dial^®  

“EL” Illuminated Display  

Air Filter Monitor  

TEMPERATURE CALIBRATION  

Adjustable Temperature Differential /  

Cycle Rate  

The internal temperature sensor in this thermostat is accurately calibrated at the  

factory. The Temperature Calibration feature allows you to manually offset the  

measured temperature by as much as plus or minus 5°F (3°C) degrees from its  

original value. This feature can be useful to match this thermostat to another  

one or more, if multiple thermostats are used in the same home. To change the  

Temperature Calibration, turn the dial to RUN mode, and place the Temperature  

mode switch in the OFF position. Hold down the UP button and push the DOWN  

button once, then let go of both. The words CAL and SET will appear on the  

screen with a number. Use the UP/DOWN buttons to change the number value  

between -5°F (-3°C) and +5°F (+3°C) degrees. 0 degrees of correction is the  

default setting. Press the NEXT button to accept the setting and return to Run  

mode.  

5-2 Day Programming  

Energy Star Compliant  

4 Periods Per Day  

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User Temperature Offset /  

Calibration  

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System or Battery Powered  

5 Minute Minimum Run/Off Time For  

Short Cycle and Compressor  

Protection  

TIME FORMAT  

This determines how the thermostat displays the clock and all other times on the  

screen. Switch position OFF is 12 HR, and ON is 24 HR.  

Battery Free Memory Storage  

Temporary Temperature Override  

Temperature Hold  

Keyboard Lockout  

TEMPERATURE SCALE  

This determines how the thermostat displays all temperatures on the screen. Switch  

position OFF is F°, and ON is C°.  

Please read ALL of these instructions carefully before beginning  

installation. Save them for future reference.  

FILTER DISPLAY  

KEYLOCK  

This determines how the remaining filter life will be displayed when the rotary dial is  

turned to the AIR FILTER position. In the Percent (%) mode, the display will count down  

the percentage of air filter life remaining before a filter change is recommended. In  

the Days mode, the display will count down the number of calendar days remaining  

before a filter change is recommended. Switch position OFF is Percent mode, and ON  

is Days mode.  

To prevent tampering with any of your settings or temperatures, most of the front  

panel buttons can be locked out by pressing the following four-button sequence:  

NEXT, NEXT, NEXT, HOLD. This sequence of keys will lock and also unlock these  

items: UP, DOWN, NEXT, HOLD, the Rotary Dial,  

and the Software Reset button. Neither of the  

Mode slide switches are locked out. When the  

INSTALLATION  

TOOLS REQUIRED  

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#1 Phillips screwdriver  

Drill with 3/16 in. (4.8mm) bit  

Wire Stripper / Cutter  

Keylock is activated, a padlock icon will be visible  

in the area above the clock as shown below.  

BATTERY MONITOR  

TU  

CAUTION: This thermostat is protected against normal minor static electric  

discharges, however to minimize the risk of damaging the unit in extremely dry  

weather, touch a grounded metal object before touching your thermostat.  

This determines whether the internal battery voltage monitor watches the condition of  

the batteries that are installed in the thermostat. This setting should always remain  

enabled unless the thermostat is being powered by System Power alone, without any  

batteries present. Switch position OFF is Battery Monitor On (Enabled), and Switch  

position ON is Battery Monitor Off (Disabled).  

DAY  

NOTE: The Keylock will be disabled if the  

Hardware Reset button is pressed.  

LOCATION  

On replacement installations, mount the new thermostat in place of the old one unless  

the conditions listed below suggest otherwise. On new installations, follow the  

guidelines listed below.  

1. Locate the thermostat on an inside wall, about 5 ft. (1.5m) above the floor, and in a  

room that is used often.  

PROGRAMMING  

FRONT PANEL ITEMS  

For all of the programming areas that are described below, this thermostat  

provides four independent periods per day for Heat mode and Cool mode, they  

are: MORN, DAY, EVE, and NITE. Each period ends at the start time of the  

following period. The programs for each Temperature mode are programmed  

separately. When you perform a Software Reset, a default temperature program  

routine is inserted into all of the program periods. You can use these default  

programs or alter any portion of them to suit your own preferences. When setting  

the program items, the value that is flashing is the item that you can change at  

that time.  

SOFTWARE RESET  

The software reset is a small recessed push button that is located right above the  

NEXT button. This button can be pushed with a pencil or the end of a paper clip. This  

reset clears all of the heating and cooling programs, filter settings, and  

other user changeable preferences to their default values. You should write down your  

heating and cooling program times and temperatures prior to using the software reset.  

2. Do not locate where air circulation is poor, such as in a corner or an alcove, or  

behind an open door.  

3. Do not install it where there are unusual heating conditions, such as: in direct  

sunlight; near a lamp, television, radiator, register, or fireplace; near hot water  

pipes in a wall; near a stove on the other side of a wall.  

4. Do not locate in unusual cooling conditions, such as: on a wall separating an  

unheated room; or in a draft from a stairwell, door, or window.  

5. Do not locate in a damp area. This can lead to corrosion that may shorten  

thermostat life.  

MODE SWITCHES  

There are two mode switches on the front, a Temperature mode switch and a Fan  

mode switch. The Temperature mode switch has three positions: HEAT, OFF, and COOL.  

In the winter, set the system switch to HEAT to control your heating system. In the  

summer, set the switch to COOL to control your air conditioner. In the spring and fall or  

when the windows are open, you can set the switch OFF. The Fan mode switch has  

two positions, AUTO and ON. Setting the Fan mode switch to AUTO, automatically runs  

your system's blower fan as required only during heating and cooling activation.  

Setting the Fan mode switch to ON, runs your system’s fan continuously, even if  

heating or cooling is not needed,  

SET WEEKDAY PROGRAM  

Select either HEAT or COOL with the Temperature mode switch. Rotate the dial to  

WEEKDAY PROGRAM. You will be programming all five weekdays at the same  

time. The first period is MORN. Using the UP and DOWN buttons, set the start  

time for this period, and then push the NEXT button to proceed. Now set the  

desired set temperature for the MORN period using the UP and DOWN buttons,  

and push NEXT to proceed. Now set the start time and set temperature for the  

DAY period, pushing NEXT after each to advance. Continue with these same steps  

to set the start time and set temperature for the EVE, and NITE program periods.  

When you are finished setting all four periods, you may continue pushing the  

NEXT button through all four periods to review your entries, or turn the dial to  

RUN if you are finished. These same programming steps for all four periods must  

be performed in both Heat and Cool Temperature modes independently.  

6. If painting or construction work has yet to be completed, cover the unit completely  

or do not install it.  

WARNING:  

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Read instructions carefully before removing any wires from your existing  

thermostat.  

This thermostat should be limited to 1.5 amps per terminal, and a maximum  

of 2 amps total; higher current than this may cause damage to the thermostat.  

All wiring must conform to the local codes and ordinances that are in your  

particular location.  

including when the Temperature mode switch is in the OFF position to provide air  

circulation only.  

NOTE:  

The Fan mode switch only works if your system provides a wire for the thermostat’s  

“G” wire terminal.  

REMOVAL OF OLD UNIT  

SET WEEKEND PROGRAM  

1. Turn OFF the electricity to all heating and cooling components.  

Do not turn the electricity back on until all work is completed.  

2. Remove the cover and front portion of your old thermostat to  

expose the wiring connections.  

Turn the dial to WEEKEND PROGRAM. You will be programming both Saturday and  

Sunday at the same time. You will begin with the start time of the MORN period,  

and use the same procedures that were performed while setting the Weekday  

Program periods, using the NEXT button to advance through the values. Return  

the dial to the RUN position when you are finished.  

PUSH BUTTONS  

There are four primary push buttons on the front of the thermostat: The UP and DOWN  

arrow keys, the NEXT button, and the HOLD button.  

3. Write down the letters printed near each wire terminal that is  

used, and the color of the wire that is connected to it. Using the  

enclosed labels, attach a label to each of your wires so that the  

letter matches the marking on your existing thermostat.  

F

OF  

ROTARY DIAL  

The LUX Speed Dial^®  

programming areas. This rotary dial has five individual positions.  

provides an easy way to quickly navigate between the different  

BATTERIES AND MAINTENANCE  

4. When they are all labeled, carefully remove the wires one at a time, making sure  

that they do not fall back inside the wall. Do not allow any of the bare wire ends to  

touch each other, or any parts on the thermostat.  

This thermostat can be powered either by “AA” alkaline batteries, by 24VAC  

system common power, or a combination of both. If you are using batteries  

alone, the batteries should be replaced AT LEAST once per year, or sooner if the  

LOW BAT battery symbol appears in the lower  

left portion of the display screen as shown  

below.  

OPERATING INSTRUCTIONS  

5. Loosen all of the screws on the old thermostat and remove it from the wall.  

SET DAY/TIME  

Rotate the dial to the SET DAY/TIME position. You should see the word SET appear on  

the display, along with the clock and a day of the week that is flashing. With the day  

flashing, press the UP button to advance the day to the desired day. Press the NEXT  

button, this should cause the time to start flashing and the day to remain on steady.  

Using either the UP or DOWN buttons, adjust the clock to the desired time. The clock  

digits will increment rapidly if either the UP or DOWN buttons are held in the pressed  

position.  

MOUNTING  

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1. Strip insulation leaving 3/8 in. (9.5mm) bare wire ends and clean off any corrosion.  

2. Fill wall opening with non-combustible insulation to prevent drafts from affecting  

the thermostat.  

3. Remove the body from the thermostat’s base by pressing the thumb latch at the  

bottom center of the unit and swinging the body away.  

DAY  

LOW BAT  

PM  

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To replace the batteries in the thermostat,  

remove the thermostat’s body from the base  

plate attached to the wall by pressing the  

LOW BAT  

5 36  

thumb latch at the bottom center of the unit and swinging the body towards you,  

up and away from the base. Remove the used batteries from the battery tray and  

discard appropriately.  

NOTE:  

HEATING AND COOLING  

If you are mounting the base to soft material like plasterboard or if you are using the  

old mounting holes, the screws may not hold. Drill a 3/16 in. (4.8mm) hole at each  

screw, and insert the plastic anchors provided.  

Basic operation of your heating or cooling system can be obtained by ensuring that the  

rotary dial is in the RUN position, and simply moving the Temperature mode switch to  

either the HEAT or COOL position. Prior to being set initially with your custom  

temperature program, and also after a Software Reset, the thermostat will follow the  

default temperature program routines that are preset within the thermostat’s memory,  

as shown below.  

Install two new Energizer^® or DURACELL^®, “AA” size alkaline batteries into the  

battery tray. Observe the polarity markings shown in the battery compartment to  

ensure proper installation. When finished, hang the top of the unit by the tabs at  

the top corners of the base, then snap the bottom of the unit into place. Do not  

use unnecessary force. If the body does not snap into place easily, remove the  

body, re-hang it from the tabs and try again.  

4. Hold the base against the wall. Route the wires through the hole below the terminal  

block. Position the base for best appearance (to hide any marks from an old  

thermostat). Attach the base to the wall with the two screws provided.  

CONNECTING THE WIRES  

5. Wires must be trapped between the black clamps and the brass  

terminals as shown here.  

PERIOD  

HEAT MODE  

COOL MODE  

TECHNICAL ASSISTANCE  

MORN 6:00 AM 70 °F (21 °C) 6:00 AM 78 °F (26 °C)  

DAY  

EVE  

If you have any problems installing or using this thermostat, please carefully and  

thoroughly review the instruction manual. If you require assistance, please  

contact our Technical Assistance department at 856-234-8803 during regular  

business hours between 8:00AM and 4:30PM Eastern Standard Time, Monday  

through Friday. You can also receive technical assistance online anytime day or  

night at http://www.luxproproducts.com. Our web site offers you answers to the  

most common technical questions, and also permits you to email your questions  

to our technical support staff at your convenience.  

8:00 AM 62 °F (17 °C) 8:00 AM 85 °F (29 °C)  

6:00 PM 70 °F (21 °C) 6:00 PM 78 °F (26 °C)  

6. Being careful not to overighten them, securely tighten all of the  

electrical terminal screws, including any unused ones.  

NITE 10:00 PM 62 °F (17 °C) 10:00 PM 82 °F (28 °C)  

NOTE:  

When you are finished performing your installation and setup options, please remove  

the thin plastic film that is protecting the LCD display screen on the front of the  

thermostat. This plastic may or may not be present, and is evident by the appearance  

of fake digits appearing on the display screen.  

MINIMUM RUN TIME DELAY  

This is determined by the thermostat, and controls the minimum length of time that  

the thermostat must remain with Heat or Cool either On or Off, before it will automat-  

ically switch to the alternate On or Off state. This feature prevents rapid or short  

cycling, and provides compressor protection for cooling equipment. The time amount  

for this delay is fixed at 5 minutes between on or off load changes.  

WARRANTY  

Limited Warranty: If this unit fails because of defects in materials or  

workmanship within three years of the date of original purchase, LUX will, at its  

option, repair or replace it. This warranty does not cover damage by accident,  

misuse, or failure to follow installation instructions. Implied warranties are  

limited in duration to three years from the date of original purchase. Some  

states do not allow limitations on how long an implied warranty lasts, so the  

above limitation may not apply to you. Please return malfunctioning or defective  

units to the location from which the purchase was made, along with proof of  

purchase. Please refer to “TECHNICAL ASSISTANCE” before returning thermostat.  

Purchaser assumes all risks and liability for incidental and consequential damage  

resulting from installation and use of this unit. Some states do not allow the  

exclusion of incidental or consequential damages, so the above exclusion may  

not apply to you. This warranty gives you specific legal rights and you may also  

have other rights which vary from state to state. Applicable in the U.S.A. and  

Canada only.  

WIRING INFORMATION  

TEMPERATURE OVERRIDE  

A Temperature Override occurs in Run mode, in either Heat or Cool, anytime the user  

adjusts the set temperature to a value that differs from the stored program  

temperature for that day and time. When the thermostat is in an Override, the word  

Override will appear in the temperature area of the display. The thermostat will  

maintain thermal control using this new set temperature, until the start of the next  

program period time is reached. At the start of the next program period, the set  

temperature will return to its programmed value. To enter an Override in either Heat or  

Cool mode, push either the UP or DOWN button once and the set temperature will  

begin to flash. Push either the UP or DOWN button to the new desired set temperature  

value. An Override may be cancelled by rotating the dial, changing the Temperature  

mode switch, or by initiating a Temperature Hold.  

** Complete heating and/or cooling system wiring can be found in the WIRE  

IDENTIFICATION AND WIRING SCHEMATICS section of this instruction sheet. The  

schematics shown provide component information for brand new installations or  

for unreferenced wires.  

©

2 0 0 9 L U X P R O D U C T S C O R P O R AT I O N . A L L R I G H T S R E S E R V E D  

https://manual-hub.com/  

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Name	LUX PSP511Ca Programmable Thermostat Instruction Manual
Make	LUX
Language	English
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• ALL THERMOSTAT INSTRUCTIONS & USER MANUALS
• LUX

LUX PSP511Ca Programmable Thermostat Instruction Manual Overview

Summary of Contents

• Page 1: Temperature hold is used for maintaining a constant set temperature for a longer duration. To enter a hold, push the HOLD button once and adjust the set temperature. To cancel a hold, press the HOLD button again or change the temperature mode switch. System type setting tells the thermostat about the type of heating and cooling equipment it controls. There are two operating modes: Furnace (Fn) or Heat Pump (HP). The air filter monitor counts the number of days since the furnace filter was replaced. The CHANGE FILTER indicator will appear when the filter should be changed. The hardware reset button is used to reset the unit’s clock and read the position of all option switches. User temperature programs are not erased when a hardware reset is performed. The temperature calibration feature allows you to manually offset the measured temperature by as much as plus or minus 5°F (3°C) degrees. The thermostat provides four independent periods per day for heat mode and cool mode, which can be programmed separately. The software reset clears all heating and cooling programs and user changeable preferences to their default values. The fan mode switch has two positions: AUTO and ON, controlling the operation of the blower fan. The keylock feature prevents tampering with settings and can be activated by a specific button sequence. The limited warranty covers defects in materials or workmanship within three years of the original purchase date.
• Page 2: heating only systems jumper provided typical 2, 3, or 4-wire, 24-volt heating only systems and millivolt heating systems typical 5 and 6-wire, 24-volt heating and cooling systems with two transformers typical single stage heat pump wiring wiring diagram notes: all of the dashed wires are optional, and usage depends upon your specific system type if replacing a Honeywell TM-11, tape off the “R” wire if a “B” wire in your system is a common wire, connecting it to the “B” terminal of this thermostat may damage your system use B or O, not both