Lux Products P621Ia manual

C AUTIONS AND W ARNINGS . . . . . . . . . . 2 SY STEM COMP A TIBILITY . . . . . . . . . . . . 3 FEA TURES . . . . . . . . . . . . . . . . . . . . . . . 4 TOOLS Y OU MA Y NEED . . . . . . . . . . . . . . 4 MOUNTING LOC A TION . . . . . . . . . . . . . . 5 REMOVE OLD THERMOST A T . . . . . . . . . . 5 INST ALL THERMOST A T BASE . . . . . . . . . 6 WI[...]

2 • This thermostat requires ba tteries to operate and failure or sub-standard performance of the batteries may impair or prevent the correct opera tion of the thermostat. Use Duracell ® or Energizer ® alkaline batteries ONL Y for all LUXPRO thermostats requiring ba tteries. BE SURE TO CHANGE THE BA TTERIES A T LEAST ONCE A YEAR, or whenever yo[...]

SETBACK HOLD SET RUN DA Y/TIME TEMP PROG AIR FIL TER TEMPERA TURE HEA T OFF COOL FA N AU TO ON EMER NEXT HEA T T U D AY S ET L EFT FA N F IL TER % P LCD Display Screen P621Ua UP / DOWN Buttons Set Slide Switch F an Mode Switch System Mode Switch The electrical rating for this thermosta t is 1.5 Amps per terminal, with a maximum total combined load [...]

• 1 or 2-Heat / 1-Cool, 5/1/1-day programming • Universal Compatibility for all system types • W eekdays, Sa turday , and Sunday can be programmed separately • Exc lusive LUX ® Speed Slide TM for easy programming • User -selectable periods per day (2 or 4) • User -selectable programmable or non-programmable opera tion • LuxLight ® E[...]

On replacement installations, mount the new thermosta t in place of the old one unless the conditions listed below suggest otherwise. On new installa tions, please follow these general guidelines: 1. Mount the thermostat on an inside wall, about 5 ft. (1.5m) above the floor . 2. Do not locate the thermostat where air circulation is poor such as in [...]

1. Strip wire insulation leaving only 3/8 in. (9.5mm) bare wire ends, and c lean off any corrosion present. 2. F ill the wall opening with non-combustible insulation to prevent drafts from affecting the thermostat’ s normal opera tion. 3. Separate new thermostat housing using your thumb and index finger . Provide pressure in opposite directions t[...]

WIRING DIAGRAM NO TES: (Important, please read all notes before connecting wires) • If the information provided in the follo wing wiring diagrams does not clearly represent or match your system, please refer to the “TECHNICAL ASSIST ANCE” section of this manual, and contact us before removing an y of your existing thermostat wiring. • All o[...]

8 #1 CONVENTIONAL: HEA TING ............................................................9 1-ST AGE OR 2-ST AGE 2, 3, 4, 5 WIRES #2 CONVENTIONAL: HEA TING ..........................................................10 3-WIRE ZONE V AL VE 3, 4 WIRES #3 CONVENTIONAL: COOLING ..........................................................11 1-ST AGE 3, 4 WIRE[...]

NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRA Y TERMINAL LETTERS ARE BRAND SPECIFIC W1 4 W X F G B* W2 RH V R W1 A W2 O B C G Y RC RH 1-ST AGE OR 2-ST AGE, HEA TING ONL Y (INCLUDING MILLIVOL T) (2-WIRE HEA T USE “RH” & “W1”) Factory RH-RC Jumper Wire Installed #1 2, 3, 4, 5 WIRES C HEA TER ST AGE 1 ST AGE 2 FA N SYSTEM 24V TRANSFORM[...]

NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRA Y TERMINAL LETTERS ARE BRAND SPECIFIC X B* C RH V R W1 4 W A W1 A W2 O B C G Y RC RH HOT WA TER HEA TING ONL Y (WITH A 3-WIRE ZONE V AL VE) Factory RH-RC Jumper Wire Installed #2 3, 4 WIRES SY STEM 24V TRANSFORMER SYSTEM COMMON OPEN = Heat On CLOSE = Heat Off 3-WIRE ZONE V AL VE OPEN CL OSE O P T I [...]

NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRA Y 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-ST AGE, COOLING ONL Y Factory RH-RC Jumper Wire Installed #3 C FA N SYSTEM 24V TRANSFORMER SYSTEM COMMON 3, 4 WIRES O P T I O N A L AIR C ONDITIONER 11[...]

NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRA Y TERMINAL LETTERS ARE BRAND SPECIFIC RH RC V R Y1 6 Y F G X W1 4 W B* W1 A W2 C G O BY RC RH CONVENTIONAL (NON HEA T PUMP) 1-ST AGE HEA TING AND 1-ST AGE COOLING Factory RH-RC Jumper Wire Installed #4 C FA N SYSTEM 24V TRANSFORMER SYSTEM COMMON HEA TER AIR C ONDITIONER 4, 5 WIRES O P T I O N A L 12[...]

NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRA Y TERMINAL LETTERS ARE BRAND SPECIFIC W2 RH RC V R Y1 6 Y F G X W1 4 W B* W1 A W2 C G O BY RC RH CONVENTIONAL (NON HEA T PUMP) 2-ST AGE HEA TING AND 1-ST AGE COOLING Factory RH-RC Jumper Wire Installed #5 C FA N SYSTEM 24V TRANSFORMER SYSTEM COMMON AIR C ONDITIONER 5, 6 WIRES O P T I O N A L HEA TER[...]

NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRA Y TERMINAL LETTERS ARE BRAND SPECIFIC 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 CONVENTIONAL (NON HEA T PUMP) 1-ST AGE HEA TING AND 1-ST AGE COOLING WITH TWO SEP ARA TE 24V TRANSFORMERS Factory RH-RC Jumper Wire REMOVED #6 FA N HEA T 24V TRANSFORMER C OOL 24V TRANSFORMER SYSTEM [...]

NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRA Y TERMINAL LETTERS ARE BRAND SPECIFIC O X F G Y1 6 Y B* RC V R W1 A W2 O B C G Y RC RH SINGLE-ST AGE HEA T PUMP SYSTEM WITH NO AUX OR EMERGENCY HEA T #7 C FA N SYSTEM 24V TRANSFORMER SYSTEM COMMON 4, 5 WIRES O P T I O N A L HEA T PUMP REVERSING VA LV E ** Use “O” or “B” T erminals, Never Bot[...]

NOTE: THE BLACK TERMINAL LETTERS ARE TYPICAL, GRA Y TERMINAL LETTERS ARE BRAND SPECIFIC CUSTOMER INST ALLED 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-HEA T / 1-COOL, HEA T PUMP SYSTEM WITH AUX AND EMERGENCY HEA T Factory RH-RC Jumper Wire Installed #8 FA N SYSTEM 24V TRANSFORMER SYSTEM COMMON 5, 6 WIRES HEA T PU[...]

INST ALL BA TTERIES INTO THERMOST A T : Install two brand new Energizer ® or DURACELL ® “AA ” size alkaline (only) ba tteries, into the thermostat’ s ba tter y compartment. Ensure the ba tteries are installed in the proper direction. GAS / ELEC CIRCUIT BO ARD OPTION (“G” TERMINAL F AN OPERA TION): This setting is a plastic shorting cap [...]

with or without a demand for heating or cooling, even when the System Mode switch is in the 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 ha ve a blower fan (such as a hot wa ter radiat[...]

Setup options for how the thermosta t will function, along with choosing your particular system type, are performed using a menu on the display screen. TO ACCESS THE SETUP MENU: Move the System Mode switch into the OFF position, and then hold do wn the EMER button for a pproximately 5 seconds until the screen changes. The menu will al ways start wi[...]

ITEM #07 (DLA Y = DELA Y TIME): [5, default] Thermosta t waits 5 minutes before turning the system back on after it was last run. This internal delay prevents rapid cyc ling and provides equipment protection. The 5 minute setting is fine for most applica tions. [2] Same operation as above but reduced to 2 minutes between state changes. ITEM #08, #0[...]

SET D A Y AND TIME: Place the Set Slide Switch into the DA Y/TIME position. With the day flashing, press UP or DOWN to set the day of the week. Press NEXT and the c lock time will start flashing. Use UP or DOWN to set the time, making sure the AM/PM indica tion is correct. Holding the UP or DOWN buttons will make the c lock digits scroll ra pidly .[...]

characteristics, you should refer to your hea t pump litera ture to determine when to disable the heat pump and run in Emergency Heat mode. In general for most heat pump systems, use Emergency Heat mode whenever the outside temperature is less than 32°F (0°C) degrees. LCD DISPLA Y BACKLIGHT : The display screen is lighted to assist viewing at nig[...]

By default, this thermosta t has 4 separa te program periods for both Heat and Cool mode, they are: MORN, DA Y , EVE, and NITE. Each period ends at the start time of the following period. The hea t programs are set in HEA T mode, and the cool programs are set in COOL mode. NOTE: If the thermosta t is configured to use only 2 periods per day instead[...]

TEMPERA TURE C ALIBRA TION: The internal tempera ture sensor in this thermostat is accurately calibra ted at the factor y , and in most cases altera tions to this setting should not be needed. The T emperature Calibration fea ture allows you to manually offset the measured temperature by as much as plus or minus 5°F (3°C) degrees from its origina[...]

screen to advance forward on its own, or press the NEXT button (behind the door) one time to jump ahead rapidly . No w use the UP/DOWN buttons to select your desired set temperature tha t will be used for the Setback duration. Just like the previous step, you can either wait for the screen to advance on its o wn, or press the NEXT button to advance[...]

TO SET THE COOL LIMIT STOP: Place the System Mode s witch in the OFF position, and the Set Slide switch in the R UN position. Press and hold the DOWN button while sliding the System Mode switch from OFF to COOL. The words “STOP” and “LOCK CODE” will a ppear on the screen, along with two digits. Use the UP/DOWN buttons to select the proper c[...]

TO UNLOCK THE KEYP AD: Start with the System Mode s witch in either the HEA T or COOL positions, and the Set Slide s witch in the R UN position. Perform a single press of each button, in the follo wing sequence: NEXT , NEXT , NEXT , HOLD. The padlock should no longer be present, with the thermosta t no w unlocked. If the padlock is still on the scr[...]

HARDW ARE RESET : The Hardware Reset button (labeled “HW RST”) is a small round push button that is loca ted in the middle of the circuit board, just belo w the ba tter y holder . Pressing this button will cause the LCD display screen to become fully populated, the hea ting and cooling load relays to c ycle off, and will perform an internal sys[...]

This thermostat is po wered by two “AA ” Alkaline ba tteries. The batteries should be replaced A T LEAST once per year to ensure reliable opera tion (or sooner if “LO BA TT” a ppears in the display screen). The batteries are loca ted on the back of the thermostat’ s circuit board. The front portion of the thermostat can be removed from th[...]

If you have an y problems installing or using this thermostat, please carefully and thoroughly review the instruction manual. If you require assistance, please contact our T echnical Assistance department a t 856-234-8803 during regular business hours between 8:00AM and 4:30PM Eastern Standard Time, Monday through F riday . Y ou can also receive te[...]

Mercur y is considered to be a hazardous material. If this product is replacing a thermostat tha t contains mercur y in a sealed tube, contact your local waste management authority for instructions regarding recyc ling and proper disposal. It may be unlawful in your sta te to place it in the trash. 31 MERCUR Y W ARNING AND RECYCLING NO TICE: Mt. La[...]