Lux Products LuxPro P521U Installation And Operating Instructions Manual Download Page 3 | Manualshive

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• 1 or 2-Heat / 1-Cool, 5/2-day programming
• Universal Compatibility for all system types
• Weekdays and Weekends can be programmed separately
• Exclusive LUX

®

Speed Slide

TM

for easy programming

• User-selectable periods per day (2 or 4)
• User-selectable programmable or non-programmable operation
• LuxLight

®

EL (Electro-Luminescent) lighted display

• Programmable air filter life timer
• Keypad lockout for unauthorized users
• Manual temperature hold
• Temporary temperature override
• Adjustable temperature differential / cycle-rate
• Adjustable 2nd heat stage Offset setting
• User temperature calibration
• Adjustable heat/cool set temperature limit stops
• Smart recovery
• Dual-powered (battery and/or 24-volt system powered)
• Battery-free memory storage
• F/C temperature display
• 12/24-hour clock display
• 5/2-minute selectable time delay for equipment protection

• Screwdrivers
• Wire Stripper
• Wire Cutter
• Drill with assorted drill bits (new installations only)

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TOOLS YOU MAY NEED:

FEATURES:

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Summary of Contents for LuxPro P521U

Page 1: ...NIVERSAL 5 2 DAY PROGRAMMABLE THERMOSTAT FOR BOTH CONVENTIONAL AND HEAT PUMP SYSTEMS INSTALLATION AND OPERATING INSTRUCTIONS IMPORTANT Please read all of these instructions carefully before beginning installation Label every wire terminal designation on your existing thermostat wiring before removing your old thermostat Ignore the color of the wires since they may not comply with any standard Plea...

Page 2: ...s 1 5 Amps per terminal with a maximum total combined load of 3 0A for all terminals combined COMPATIBLE WITH Most 24 volt heating and cooling systems 1 or 2 stage Heat 1 stage Cool Gas Oil or Electric systems 1 or 2 stage Heat 1 stage Cool Heat Pump systems 3 wire hydronic hot water zone valves Gas Millivolt heaters NOT COMPATIBLE WITH 120 240 VAC line voltage systems without a transformer ask yo...

Page 3: ...lockout for unauthorized users Manual temperature hold Temporary temperature override Adjustable temperature differential cycle rate Adjustable 2nd heat stage Offset setting User temperature calibration Adjustable heat cool set temperature limit stops Smart recovery Dual powered battery and or 24 volt system powered Battery free memory storage F C temperature display 12 24 hour clock display 5 2 m...

Page 4: ... or construction work is still ongoing cover the thermostat completely or wait until this work is complete before installation WARNING All wiring must conform to the local codes and ordinances that are in your particular location 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 front portion of your old th...

Page 5: ...all using the screws provided use the supplied plastic anchors if needed when mounting to a soft material such as drywall CONNECTING THE WIRES When attaching the wires to the thermostat please ensure that the bare wire ends are held ALL the way into the terminal block while the screw is being tightened WIRING BASE PLATE NOTICE This thermostat model is part of a family of similar models that have t...

Page 6: ... interference static electricity failure or substandard performance of batteries wiring defects in the installation and or characteristics of the connected HVAC devices may prevent the system from regulating heating and cooling as anticipated The thermostat is a sensitive device and dropping the product can cause damage to critical components If the product is dropped or shaken violently during tr...

Page 7: ...stem using the System Common wire This can be used alone or in addition to installing batteries as a backup NOTE connecting the System Common wire to the thermostat is not necessary for heating and cooling to function properly If your old thermostat has both a Y and C wire present then C is most likely a System Common wire For Heat Pump systems you will use either the O terminal or the B terminal ...

Page 8: ...ENTIONAL HEATING AND COOLING 11 1 STAGE HEAT 4 5 WIRES 5 CONVENTIONAL HEATING AND COOLING 12 2 STAGE HEAT 5 6 WIRES 6 CONVENTIONAL HEATING AND COOLING 13 TWO TRANSFORMERS 5 6 WIRES 7 HEAT PUMP HEATING AND COOLING 14 SINGLE STAGE ONLY 4 5 WIRES 8 HEAT PUMP HEATING AND COOLING 15 WITH AUX EMERGENCY HEAT 5 6 WIRES DIAGRAM SYSTEM TYPE DESCRIPTION PAGE WIRING DIAGRAMS ...

Page 9: ... MILLIVOLT 2 WIRE HEAT USE RH W1 Factory RH RC Jumper Wire Installed 1 2 3 4 5 WIRES C HEATER STAGE 1 STAGE 2 FAN SYSTEM 24V TRANSFORMER SYSTEM COMMON FAN WIRE MAY NOT BE PRESENT IN ALL SYSTEMS NOTE THE BLACK TERMINAL LETTERS ARE TYPICAL GRAY TERMINAL LETTERS ARE BRAND SPECIFIC O P T I O N A L ...

Page 10: ...LY 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 SYSTEM 24V TRANSFORMER SYSTEM COMMON OPEN Heat On CLOSE Heat Off 3 WIRE ZONE VALVE OPEN CLOSE O P T I O N A L ...

Page 11: ... G Y RC RH 1 STAGE COOLING ONLY Factory RH RC Jumper Wire Installed 3 C FAN SYSTEM 24V TRANSFORMER SYSTEM COMMON 3 4 WIRES NOTE THE BLACK TERMINAL LETTERS ARE TYPICAL GRAY TERMINAL LETTERS ARE BRAND SPECIFIC O P T I O N A L AIR CONDITIONER ...

Page 12: ...ONAL NON HEAT PUMP 1 STAGE HEATING AND 1 STAGE COOLING Factory RH RC Jumper Wire Installed 4 C FAN SYSTEM 24V TRANSFORMER SYSTEM COMMON HEATER AIR CONDITIONER 4 5 WIRES NOTE THE BLACK TERMINAL LETTERS ARE TYPICAL GRAY TERMINAL LETTERS ARE BRAND SPECIFIC O P T I O N A L ...

Page 13: ...N HEAT PUMP 2 STAGE HEATING AND 1 STAGE COOLING Factory RH RC Jumper Wire Installed 5 C FAN SYSTEM 24V TRANSFORMER SYSTEM COMMON AIR CONDITIONER 5 6 WIRES NOTE THE BLACK TERMINAL LETTERS ARE TYPICAL GRAY TERMINAL LETTERS ARE BRAND SPECIFIC O P T I O N A L HEATER STAGE 1 STAGE 2 ...

Page 14: ...ND 1 STAGE COOLING WITH TWO SEPARATE 24V TRANSFORMERS Factory RH RC Jumper Wire REMOVED 6 FAN HEAT 24V TRANSFORMER COOL 24V TRANSFORMER SYSTEM COMMON HEATER AIR CONDITIONER 5 6 WIRES NOTE THE BLACK TERMINAL LETTERS ARE TYPICAL GRAY TERMINAL LETTERS ARE BRAND SPECIFIC O P T I O N A L ...

Page 15: ...MERGENCY HEAT 7 C FAN SYSTEM 24V TRANSFORMER SYSTEM COMMON 4 5 WIRES NOTE THE BLACK TERMINAL LETTERS ARE TYPICAL GRAY TERMINAL LETTERS ARE BRAND SPECIFIC O P T I O N A L HEAT PUMP REVERSING VALVE Use O or B Terminals Never Both CUSTOMER INSTALLED Y W1 Jumper Wire Factory RH RC Jumper Wire Installed ...

Page 16: ...OL HEAT PUMP SYSTEM WITH AUX AND EMERGENCY HEAT Factory RH RC Jumper Wire Installed 8 FAN SYSTEM 24V TRANSFORMER SYSTEM COMMON 5 6 WIRES NOTE THE BLACK TERMINAL LETTERS ARE TYPICAL GRAY TERMINAL LETTERS ARE BRAND SPECIFIC HEAT PUMP REVERSING VALVE Use O or B Terminals Never Both AUX EMERG HEAT O P T I O N A L ...

Page 17: ... This setting is used for the majority of all heating systems that are not heat pumps Examples for this setting would be natural gas furnace hot water baseboard heat and oil heat ON UP HP Use this setting if you have a heat pump unit which looks just like an outside air conditioning unit but is used for both cooing and heating SWITCH 2 TYPE OFF DOWN PROG default The thermostat controls the room te...

Page 18: ...ther On or Off before it will automatically switch to the alternate On or Off state This internal delay prevents rapid cycling of your system and provides equipment protection particularly for cooling units The 5 minute setting is fine for most applications ON UP 2 MIN If you feel that your system may need to cycle more frequently than the thermostat is allowing then you may use the 2 minute setti...

Page 19: ...f Systems that would typically use the GAS setting would be natural gas propane or oil furnaces This setting has no effect upon Cool mode operation UP ELEC HP This setting runs the system s blower fan when heat is called for and is required for heating systems that do not control their own fan while the thermostat is in HEAT mode Heat pump systems and units with an electric heating element typical...

Page 20: ...e OFF position NOTE The Fan Mode switch only works if your system provides a wire for the thermostat s G wire terminal to control a blower fan The Fan Mode switch has no effect in systems that do not have a blower fan such as a hot water radiator system MULTI FUNCTION SET SLIDE SWITCH This switch provides an easy way to quickly access the most commonly used thermostat settings This switch has 4 in...

Page 21: ...stems there is no such thing as emergency heat so this button will have no effect NEXT BUTTON This button is mostly used while setting items such as software options and temperature program periods When there are several items on the screen that can be changed usually one of them is flashing indicating that it can be adjusted Pressing the NEXT button will cycle through which item is flashing SET D...

Page 22: ...play screen If a power loss occurs while in Emergency Heat mode the thermostat will continue to remain in Emergency Heat mode even after the power comes back on Emergency Heat mode will prevent the first stage of your heat pump system from turning on and use only the W2 heat terminal Auxiliary Heat as the primary heating source This will not only prevent the heat pump from wasting energy if outdoo...

Page 23: ...ling If heating or cooling does not turn on right away with a manual change in set temperature please wait at least 5 minutes and the system should resume normal operation TEMPERATURE HOLD A Temperature Hold is used for maintaining a fixed set temperature Once a Hold is initiated the thermostat will maintain the set temperature indefinitely A Hold may be used for days weeks or even months at a tim...

Page 24: ...he start time for the MORN period then press the NEXT button to advance Use the UP DOWN buttons to adjust the set temperature for the MORN period then press the NEXT button to advance Now adjust the start time and set temperature for the DAY period pressing the NEXT button after each to advance Continue with these same steps to adjust the start times and set temperatures for the EVE and NITE progr...

Page 25: ...he RUN position Press and hold the HOLD button for at least 5 seconds The words SET and SWING will appear on the screen along with a single flashing digit Use the UP DOWN buttons to change the number value between 1 and 9 0 25F to 2 25F in 0 25F degree increments Number 1 is the default setting Press the NEXT button to accept the swing setting and proceed to the OFFSET setting TO CHANGE THE OFFSET...

Page 26: ...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 1st Stage 2nd Stage Cut In Cut Out Offset Setting 4 F degrees ...

Page 27: ... along with a single flashing temperature digit Use the UP DOWN buttons to change the number of degrees of adjustment 0 degrees is the default value and means no correction is being applied Press the NEXT button to accept the setting TEMPERATURE LIMIT STOPS There are two independent set temperature limit stops a maximum heat set temperature and a minimum cool set temperature These stops do not pre...

Page 28: ...ords STOP and LOCK CODE will appear on the screen along with two digits Use the UP DOWN buttons to select the proper code to access the cool limit setting Press the NEXT button to accept the setting If the code you tried was not correct the thermostat will exit and return to the Normal Run screen with no changes made If the entered code is correct the screen will add the word SET and display the c...

Page 29: ...instructions need to be performed in a timely manner The 4 button sequence which locks the thermostat must be entered within a 10 second timeframe or the keypad lockout sequence will have to be entered again from the beginning TO LOCK THE KEYPAD Start with the System Mode switch in either the HEAT or COOL positions and the Set Slide switch in the RUN position Perform a single press of each button ...

Page 30: ...witch to the AIR FILTER position The word DAYS will be shown on the screen along with the word FILTER and 2 3 characters at the top right corner of the display Press either of the UP DOWN buttons to select the desired filter duration in days from the following choices OFF 30 60 90 120 180 or 365 If the filter duration value is set to OFF then the Air Filter Monitor will be completely disabled Retu...

Page 31: ...e not erased when a hardware reset is performed however the clock will have to be changed to match the current day and time SOFTWARE RESET The Software Reset button labeled SW RST is a small round push button that is located towards the left side of the circuit board just below the battery holder A Software Reset is used to erase all heating and cooling temperature programs and any user adjustable...

Page 32: ...o normal operation automatically This thermostat is powered by two AA Alkaline batteries The batteries should be replaced AT LEAST once per year to ensure reliable operation or sooner if the LOW BATT icon appears at the top of the display screen The batteries are located on the back of the thermostat at the top of the circuit board The front portion of the thermostat can be removed from the back h...

Page 33: ...ears 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 inc...

Page 34: ...Mt Laurel New Jersey 08054 USA http www luxproproducts com 856 234 8803 34 HOLD 74F 72F 5 36P HEAT TU DAY SET ROOM FAN ...

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