Lux Products LuxPro Smart Temp P621U Installation And Operating Instructions Manual Download

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SETBACK

HOLD

SET

R U N

DAY/TIME

TEMP PROG

AIR FILTER

TEMPERATURE

HEAT

OFF

COOL

FAN

AUTO

EMER

NEXT

5:36

HEAT

FAN

EFT

ILTER

LCD Display Screen

P621U

UP / DOWN Buttons

Set Slide

Switch

Fan Mode
Switch

System Mode
Switch

The electrical rating for this thermostat is 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 your LUXPRO

dealer for thermostats to control these systems.

SYSTEM COMPATIBILITY:

Summary of Contents for LuxPro Smart Temp P621U

Page 1: ...AL 5 1 1 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 Please c...

Page 2: ...is product before operation and at regular intervals Electrical 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 com...

Page 3: ...t is 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...

Page 4: ...ckout for unauthorized users Manual temperature hold Adjustable vacation hold 1 to 30 days 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 di...

Page 5: ... 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 6: ...d hold the base against the wall Try to line up the screw holes from the prior thermostat and install the mounting screws 5 If the previous holes cannot be used hold the thermostat base against the wall so that it appears straight and level position the base for best appearance and mark for the new screw holes Attach the base to the wall using the screws provided use the supplied plastic anchors i...

Page 7: ...m 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 both present then C is most likely a System Common wire For Heat Pump systems you will use either the O terminal or the B termina...

Page 8: ...ENTIONAL HEATING AND COOLING 12 1 STAGE HEAT 4 5 WIRES 5 CONVENTIONAL HEATING AND COOLING 13 2 STAGE HEAT 5 6 WIRES 6 CONVENTIONAL HEATING AND COOLING 14 TWO TRANSFORMERS 5 6 WIRES 7 HEAT PUMP HEATING AND COOLING 15 SINGLE STAGE ONLY 4 5 WIRES 8 HEAT PUMP HEATING AND COOLING 16 WITH AUX EMERGENCY HEAT 5 6 WIRES DIAGRAM SYSTEM TYPE DESCRIPTION PAGE WIRING DIAGRAMS ...

Page 9: ...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 HEATER STAGE 1 STAGE 2 FAN SYSTEM 24V TRANSFORMER SYSTEM COMMON FAN WIRE MAY NOT BE PRESENT IN ALL SYSTEMS O P T I O N A L 9 ...

Page 10: ... BRAND SPECIFIC 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 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 10 ...

Page 11: ...PICAL GRAY TERMINAL LETTERS ARE BRAND SPECIFIC X F G Y1 6 Y B RC V R W1 A W2 O B C 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 O P T I O N A L AIR CONDITIONER 11 ...

Page 12: ...RE BRAND SPECIFIC RH RC V R Y1 6 Y F G X W1 4 W B W1 A W2 C G O B Y RC RH CONVENTIONAL 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 O P T I O N A L 12 ...

Page 13: ...PECIFIC W2 RH RC V R Y1 6 Y F G X W1 4 W B W1 A W2 C G O B Y RC RH CONVENTIONAL NON 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 O P T I O N A L HEATER STAGE 1 STAGE 2 13 ...

Page 14: ...RH R V RC Y1 6 Y F G W1 4 W W1 A W2 O B C G Y RC RH CONVENTIONAL NON HEAT PUMP 1 STAGE HEATING AND 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 O P T I O N A L 14 ...

Page 15: ... 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 FAN SYSTEM 24V TRANSFORMER SYSTEM COMMON 4 5 WIRES 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 15 ...

Page 16: ... 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 FAN SYSTEM 24V TRANSFORMER SYSTEM COMMON 5 6 WIRES HEAT PUMP REVERSING VALVE Use O or B Terminals Never Both AUX EMERG HEAT O P T I O N A L 16 ...

Page 17: ...s 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 temperature by following temperature program periods that you set up based upon your d...

Page 18: ...our system may need to cycle more frequently than the thermostat is allowing then you may use the 2 minute setting SWITCH 7 RECOVERY OFF DOWN DISABLE default The Early Recovery feature affects how the thermostat transitions from an energy saving setback DAY and NITE program period to a comfort MORN and EVE program period temperature when it is following the daily temperature programs When this is ...

Page 19: ...n the battery tray If the batteries were already installed before changing the hardware setup options change the position of the HEAT OFF COOL System Mode switch to accept the new hardware option switch settings These items below are all located behind the door on the front of the thermostat To open the door pull outwards using the small indentation in the center of the top edge of the thermostat ...

Page 20: ...he RUN position except the AIR FILTER position SETBACK BUTTON This button activates and deactivates the SETBACK feature which overrides the set temperature for an adjustable duration This feature is described in greater detail in the ADVANCED FEATURES section 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 ...

Page 21: ...using the UP and DOWN buttons When the thermostat is first powered up it will follow a default temperature routine that is preset from the factory shown below EMERGENCY HEAT Heat Pump Configuration Only While in normal Heat mode with the Set Slide switch in the RUN position one single press of the EMER button will activate Emergency Heat mode A single press again will end Emergency Heat mode and r...

Page 22: ...thermostat has a default internal time delay of 5 minutes between load on and load off activations to prevent heating or cooling system damage which can occur from very frequent cycling 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...

Page 23: ... 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 program periods When the NITE period is finished for the weekdays the thermostat will advance forwar...

Page 24: ...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 25: ...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 25 ...

Page 26: ...RE The setback feature is similar to both a Temperature Override and a Temperature Hold in that both are used to maintain a fixed set temperature instead of following a programmed daily routine A Setback can be considered the same as a Temperature Override which can last for a longer duration that you can adjust from 1 12 hours or 1 30 days By default when a Setback is activated in Heat mode the s...

Page 27: ...s code NOTE The Temperature Limit Stop settings need to be performed in a timely manner as the thermostat will timeout and automatically exit the setting screens after approximately 10 seconds without a button press TO SET THE HEAT LIMIT STOP Place the System Mode switch in the OFF position and the Set Slide switch in the RUN position Press and hold the UP button while sliding the System Mode swit...

Page 28: ...rforming the following steps Place the System Mode switch in the OFF position and the Set Slide switch in the RUN position Press and hold the NEXT and HOLD buttons together for at least 10 seconds The screen will start flashing and display words SET TEMP STOP and LOCK CODE along with the new code of 00 After a couple seconds the screen will automatically return to the Normal Run screen in Off mode...

Page 29: ...RATION Move the Set Slide switch to the AIR FILTER position The words SET 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 ...

Page 30: ...justable software values such as Swing Offset and Calibration to their original factory default values To perform a Software Reset press and hold the Software Reset button for at least 5 seconds The LCD display screen will become fully populated than return to normal The thermostat will still retain the current day and ttime even after a Software Reset has been performed COMPRESSOR PROTECTION BYPA...

Page 31: ...y markings shown in the battery compartment to ensure proper installation When finished line up the front of the thermostat to the base and firmly press together to securely latch the front and back halves together properly 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 Technica...

Page 32: ... 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 v...

Page 33: ...Mt Laurel New Jersey 08054 USA http www luxproproducts com 856 234 8803 33 SETBACK HOLD 74F 72F 5 36P HEAT TU DAY SET FAN 40 LEFT FILTER ...

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