Heating operation is indicated by a flame icon in the SYSTEM box. . An optional outdoor temperature sensor provides. Turn off the power switch to the furnace The furnace's control panel will have a power switch on its side, which looks like a wall light switch. . . . . . . . . . . . In case the furnaces motor fails to emit any sound when turned on, either the motor or the limit switch has most likely become defective. . . . The remaining 2 days can then be set for a different set of 4 unique events per day. 1, General . Sign in for pricing and availability. 0000004428 00000 n The 51M35 thermostat can be programmed to perform a set of either heating or cooling events (but not a combination of heat and cool) for 5 consecutive days using a set of 4 unique events per day. . . . If the furnace isnt working, you may have to reset it. . . . . The thermostat now functions much like a nonprogrammable thermostat. . These optional reminders are not enabled until you activate them. Settings of Off, 1, 3, 6 or 12 (months of fan run time) are available. To adjust the balance point up or down, press the Up/Down arrow buttons to the right of the display screen. What harmful household odors should I be aware of? ( AM" or PM" must correspond to time of day.) . . . . Such a RE-. . . NOTE If no buttons are pressed during a demand for cooling, the equipment must operate for at least 4 minutes. . . At Lennox, we love our owners and seek to support them in every way possible. . How to Know the Heater Wattage: A Guide for Homeowners. Thermal-mechanical switch opens W1, Y1, Y2, and E at. . Lennox 51M37 Operation Manual Rating 5.0 (votes: 1) Description Automatic regulation of the room temperature and energy savings are the main tasks of the Lennox 51M37 Merit. . . . . Reset. . There are 2 near you. 8, Thermostat Output Table . . Figure 15 gives an example of how the two sets of programs can be set for a normal workweek and weekend. A slow flash rate equals one flash per second (1 Hz). . . . If youre going to do your maintenance, the above guide is an excellent start since it can get you through most repairs. . . . . Smart Setback Recovery (SSR) affects the way the thermostat responds to program events. . . When the RESET button is pressed, ALL settings revert back to the defaults, including the default program (see tables 2 and 3). . . . . . . . . . . You can test the inducer motor by touching it. 747 61 . Consult authorities, Check equipment for shipping damage. . . . . 0000053884 00000 n You can email the site owner to let them know you were blocked. 0000006298 00000 n . 0000007355 00000 n . . . . . . Please check other cities zip/postal codes for same-day availability. A flame sensor at the burner end of the furnace gas manifold connection signals to the furnace that there is a flame. To change from continuous to auto fan mode (or vice versa), press the FAN button. . . . You can reset an electric furnace by locating the reset button (usually located inside the blower part) and pressing it down. Both have benefits and drawbacks, but the non-condensing model is more commonly used in homes because its less expensive and smaller than the condensing model. This is indicated by OFF in the SYSTEM box as shown in figure 6. Call: +44 1782 576800 Radwell is not an authorized distributor, reseller or representative of the products featured on this website. . equipment maintenance reminder, and a system check. . . You may have to increase the thermostat temperature to turn the furnace on. . . . . . . . . . All display segments are momentarily activated. Series Thermostat 51M32 is a nonpro- grammable electronic thermostat that is easy-to-use and has a large, easy-to-read display and excellent tempera- ture control. . . . 51M37 Manuals . . . . Is there really a difference between air conditioner and heat pump sound levels? The balance point feature allows the measured outdoor temperature to govern operation of the heat pump and backup heat source. . . . . . . . . . . . What is the difference between R-22 and R-410A refrigerants? . Press DAY/TIME. If the thermostat is in HEAT or OFF mode, cool mode is enabled when the COOL button is pressed. . Reference: https://www.airtronic.ca/lennox-furnace-troubleshooting/. . . . This is indicated by COOL in the SYSTEM box (see figure 9). Heat pump operation is locked out for 5 minutes after a demand has been satisfied. . . . . . . . Today I went to activate the touchscreen to adjust temperature, and the screen is dark . . . . Press the Up/Down arrows buttons to change the hour. This is indicated by HEAT in the SYSTEM box as shown in figure 4. . The RESET button is an unlabeled, recessed button located behind the door, on the righthand side of the thermostat, below the SETTINGS button (see figure 3). . Sign in with the same credentials. Refer to the installation manual for instructions regarding installation and wiring of the thermostat. . . . . . . . To adjust the setpoint, press the UP or DOWN (YB) arrow buttons (see figure 9); the existing setpoint is displayed to the right of the actual room temperature. Model/Part # :ECBA25-10CB. . . Its best to seek professional help in your area if you cannot mitigate the pros yourself. . A filthy filter blocks airflow, causes furnaces to overheat and turns off too quickly before the house is adequately heated. If the breaker trips, you may have a short circuit in the furnace or electric wires, and you should contact HVAC professionals or experts immediately. . Please select the application form language. . How is a home air purification system different from a filtration system? When abnormal equipment operation is detected, the SERVICE indicator will flash on the screen (see figure 21). 0000005490 00000 n . . Wiring Loose connections, disconnections, and faulty or aging wiring can cause a thermostat to lose its connection to their heating and cooling systems causing an interruption in service. 4, HOLD Temperature Hold Mode . If desired, start making changes within 15 seconds or the HOME screen will return. Use the COOL button to enable or disable cool mode as desired. . 7, Technical Specifications . . . . . . Can I use my chimney with my new furnace. However, if a large cooling demand is present, "Hi" will be displayed in the SYSTEM box (shown in figure 8). NOTE Pressing ENTER during the following programming steps, saves and exits to the HOME screen. . . . . . . . . If the thermostat detects that the heat pump is not able to provide enough heat (as may be the case in very cold weather), then the backup heat source is activated. . . . . Usually, you will find the filter in the return duct just before the furnace. . Set the thermostat to cool mode to control the cooling equipment. . . Minimum elapsed time between any compressor activation and the next compressor activation: 6 minutes. . Controls (51m32) . Follow these steps to reset your Lennox furnace: 1. . Use Up/Down arrow buttons to display the current day. . . 2, HEAT Heat Mode . . . reset" the thermostat to its default condition. . startxref . . . . . To do so, press the Settings button (shown below the Fan button in figure 14) once or twice for the desired reminder as shown in figure 15 and as described in table 1. Electronic programmable thermostat for 2Stage (gas or electric) Heat/2-Stage Cool, nonheat pump, nonpower robbing applications. 0000004826 00000 n There is no setting or field repair for this. . Upload manuals that we do not have and get. Furnaces often have short cycles because of flame sensor failure as well. CMav@* . . . . Enter in your new list name below, and we will save your item to it! . . . . . Document(s) Updated: 2005. . What are the advantages of the CompleteHeat. . . . . . . Use the Up/Down arrow buttons to adjust the hold setpoint. 0000015746 00000 n . Thermostat memory is retained for a minimum of 24 hours during a power loss (includes retention of program information, HOLD status, programmed temperature setpoint, heat/cool and fan mode settings, filter reminder status, maintenance reminder status, and equipment protection timers). Make sure to suck the drain with a vacuum to unblock it. . . The, system check indicator will notify the user of the need for, Thermostat 51M32 is suitable for non-heat pump, single, stage heat/single cool applications that are matched with a, These instructions are intended as a general guide and do, not supersede local codes in any way. AM 6:00", period A", and the 5 consecutive days are displayed; AM 6" flashes. . At any time the program is running, from the HOME screen, set a permanent hold (program override) by pressing the HOLD button (see figure 12). . . Minimum furnace cycle time (elapsed time between any furnace activation and the next furnace activation): 6 minutes. . . FAN box is present (indicating that the fan is running) or not. For example, there isa clogged air filter or a faulty blower motor, knowing that is what will make any repair job more accessible in the long run. 0000023032 00000 n Access to training . . The 5 consecutive day period is then displayed (default is MOnday thru FRiday). . . . . The Lennox Merit Series 5/2 day programmable electronic thermostat 51M35 provides excellent temperature control and a large, easy-to-read display. . . I am having problems with my cetnral Ac system which is combined with a gas forced hot water heating system. . 0000007136 00000 n If you find any. . . . This indicates that the heating demand has been satisfied and that the heating equipment has been turned off. If it doesnt, youll need to troubleshoot the furnace according to the users manual. . The default setting for the reminders is OFF (disabled). . What products are NOT covered under warranty? To return to the program, press HOLD again. . (figure shows temperature in Fahrenheit units). . NOTE The heat pump is activated for at least 4 minutes if no buttons are pressed during the demand interval. . . . . Add to List. Replace these to see if they work correctly. Why is proper air circulation important in the home? . . It's also easy to find an expert Lennox dealer who can help you make the most of your HVAC system. . . . . . . NOTE Heating equipment is activated for at least 3 minutes if no buttons are pressed during the demand interval. . My Dealer . Press DAY/TIME. . . . . Lennox furnaces are the most reliable and efficient on the market. . To replace it, first position the top tilted toward the wall bracket and align it until you feel the tabs and slots engage; then, while the top is in place, pivot the bottom toward the wall until the thermostat snaps into place. 5.Repeat steps 2 through 4 for periods B, C, and D. 6.Repeat steps 1 through 5 for the 2day program. If the thermostat is in heat mode, pressing the Heat button enables EMG. . . . . . Performance & security by Cloudflare. Initial Thermostat Power-up. . Activated for 30 seconds when any button is pressed. . . NOTE Temperature scale default is Fahrenheit units but may be reset to show Celsius, if desired. . For example, if the balance point is 40F and the actual outdoor temperature is 35F, the outdoor temperature must rise to 43F before equipment adjustment occurs. . . . The 51M37 is suitable for heat pump, 3-stage heat/2-stage. . Use the HEAT button to select normal heat mode, emergency heat mode, or to disable heat modes as desired. While in Temporary Hold, press HOLD once to switch to. To return to the program, press HOLD again. . . . . . After the filter has been changed or maintenance performed, reset the reminder by pressing the SETTINGS button for 4 seconds. . The minimum flame sense current is 0.5 microAmps. . . . . . Then, if the room temperature is higher than the temperature setpoint, as shown in figure 8, the thermostat detects a cooling demand and will activate the cooling equipment to satisfy the demand. Order toll free: 800.884.5500 Order international: +1 609.288.9393 Are you in EU? Minutes will flash. 3.Day MO" (Monday) will flash. . . . Refer to the installation manual for instructions re-. Locate the inducer motor on the top box of the furnace. The bottom compartment houses a see-through glass disc that displays the fault code. Refer to the installation manual for instructions re-. . Consult authorities having jurisdiction before installation. . . . . . The following notes described terms used in the table. 0000054656 00000 n . . . With a very large heat demand, temperature is: OR 15minute 2nd upstage timer HAS expired. . garding installation and wiring of the thermostat. . Lennox Thermostat Troubleshooting. . The Lennox Merit Series 5/2 day programmable electronic thermostat 51M37 provides excellent temperature control and a large, easy-to-read display. Chances are regular furnace maintenance is critical in avoiding these issues. . . . . . When power is initially applied to the thermostat, the dis-. . . The new LennoxPROs e-Business System makes your job easier, faster and more profitable. . . 747 0 obj<> endobj . 3.Day MO" (Monday) will flash. . . . . . Can strong odors in my house cause health problems? Use the SETTINGS button to access the balance point setting. . Use the Up/Down arrow buttons to select the desired hour; press PROG when the desired hour is reached. . Also when I snapped the new one in will everything just start up image.jpg A Lennox furnace requires regular maintenance to keep it running efficiently and optimally. . This indicates that the equipment requires service from a qualified service technician. . . The action you just performed triggered the security solution. . . Day MO" (Monday) will flash. 749 0 obj<>stream . . . . Set the thermostat to cool mode to control the cooling equipment. . If auto fan mode is selected (AUTO displayed in FAN box see figure 17), the fan will only run when the heating or cooling equipment is running. With simple one-touch operation and precision temperature control, ComfortSense 3000 Series Programmable & Non-Programmable Thermostats are incredibly convenient. . .and more! Note whether a fan icon in the. The default temperature setpoint in Hold mode is 70F. . The remaining 2 days can then be set for a different set of 4 unique events per day. If another cooling demand occurs during this 5minute interval, COOL" and the snowflakes will flash; however, the cooling equipment will not operate until the 5minute delay has elapsed. . . FAN box is present (indicating that the fan is running) or not (fan not running). . With a small COOL demand, temperature is: above setpoint +0.5F but below setpoint +1.5F, With a large COOL demand, temperature is: above setpoint +1.5F, w/Gas Backup (dual fuel; no outdoor sensor), w/Electric Backup (outdoor sensor attached), w/Gas Backup (dual fuel; outdoor sensor attached). . Be careful when touching the motor, as it can become overheated and burn your fingers. trailer . 51M37 - Programmable Thermostat Lennox ComfortSense 3000 Touchscreen MERIT Thermostat 5/2 Programmable ComfortSense 3000 Series Programmable & Non-Programmable Thermostats Accurate temperature contr. Lennox 51M37 Operation manual (54 pages) . . After either programmed interval has elapsed, the reminder will be displayed as shown in figure 19. . At this point, the thermostat will be fully functional; its default temperature setpoint (not shown) is 70F. . . 24VAC is present on the terminals of the thermostat bracket. The default balance point setting is 55F. . Emergency heat demand (only if emergency heat is enabled): temperature is below setpoint 0.5F. Press the PROG button when finished. Lennox L3532U, Digital Programmable Thermostat, Universal 3 Heat/2 Cool, Dual-fuel capability (multi-stage heat pump version only)increases the efficiency of dual-fuel heating systems by automatically alternating between gas and electric operation, 5-day/2-day programminghomeowners can customize a temperature schedule for weekdays and weekends, with up to two time periods per day, Non-programmable model available for ease of use in basic applications, Easy integrationworks with advanced heating and cooling systems to properly regulate temperature inside the home, Automatic changeover between heating and cooling operation, depending upon the demand (7-day programmable only), Large buttons and backlit displayfind the right setting, day or night, Digital controlaccurately maintains the desired temperature. . . . . . . . Display Scale: Fahrenheit or Celsius user selectable (via. 4. . See page 7. 3, HOLD Temperature Hold Mode . . . The circuit includes a flame sensing rod in front of the last burner. . . 15 seconds or the HOME screen will return. 51M37, 05/05, 505,050M. . This occurs as a normal part of thermostat initialization. If the thermostats are not working correctly, the furnace may not be able to maintain the correct temperature. Whose claim do I believe? . What kind of pollutants do the PureAir and PureAir S systems remove? . . . . 0000004694 00000 n Heating operation is indicated by a flame icon in the SYS-. . . . Lennox Furnace Troubleshooting: The Definitive Guide, https://www.airtronic.ca/lennox-furnace-troubleshooting/. . It's a Lennox 51m37. How can I tell if there is carbon monoxide in my home? . 51M32 Lennox 1 Heat/1 Cool ComfortSense Non-Programmable Thermostat $31.30 $36.00 51M33 Lennox 2 Heat/1 Cool ComfortSense Non-Programmable Thermostat $42.70 $46.50 10F81 Lennox iComfort Wi-Fi Thermostat $275.00 $325.00 10T50 Lennox 103861-02 Equipment Interface Module $97.50 $112.00 . . . . It's a Lennox 51m37. . . I do not have a computer. . . . . . . . . If you find any damage, immediately contact the last carrier. . . Remove the front panel of the furnace . . If the breaker is in the middle, move it to the off position. . . . . . To program events and temperatures, perform the following steps, once with Cool selected and once with Heat selected. Look for a raised switch or button when removing the front panels of the furnace. . . 0000004561 00000 n . . . . . How do the PureAir and PureAir S systems attack chemicals? 7, Service Indicator . . Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page. . Then, turn the furnace switch back on. . . Database contains 1 Lennox 51M37 Manuals (available for free online viewing or downloading in PDF): Operation manual . 2005 Lennox Industries Inc. Dallas, Texas, USA RETAIN THESE INSTRUCTIONS FOR FUTURE REFERENCE 51M37 Merit Series Thermostat The Lennox Merit Series 5/2 day programmable electronic thermostat 51M37 provides excellent temperature control and a large, easy-to-read display. . . . . . . 0000006509 00000 n . . xVoLg~i'Jg No store found for that zipcode and search radius. When power is initially applied to the thermostat, the dis-. . . . . Within a few seconds, the Home Screen appears (see figure 2) with default settings as shown. . . . . 0000005225 00000 n Press DAY/TIME OR, if adjusting for daylight savings time, pressing ENTER stores the single change and exits to the HOME screen, bypassing minutes and day of week. . . . . Day MO" (Monday) will flash. The document contains a 8 of pages in English with detailed descriptions and pictures of the Lennox 51M34 Merit thermostat. . This may have links to the furnace problem. NOTE The balance point is only available with the outdoor sensor. . . . . The HOME screen reappears; confirm day and time are correct. indicator to notify the user when the equipment requires. : temperature is: or 15minute 2nd upstage timer has expired n you can the. Note heating equipment has been satisfied and that the fan button love our and. Is OFF ( disabled ) once to switch to kind of pollutants do the PureAir and PureAir systems! To let them Know you were doing when this page came up and the next compressor and... Or electric ) Heat/2-Stage cool, nonheat pump, 3-stage Heat/2-Stage harmful household odors should I aware... Know the Heater Wattage: a Guide for Homeowners your maintenance, the thermostat, dis-... Run time ) are available will save your item to it point is only available with the sensor... Not running ) or not of your HVAC system Programmable thermostat Lennox ComfortSense 3000 touchscreen Merit.. Are the most reliable and efficient on the terminals of the last carrier on this.! Following programming steps, saves and exits to the furnace change the hour can get you through most.! Equipment must operate for at least 3 minutes if no buttons are during. Much like a nonprogrammable thermostat professional help in your area if you find any damage, immediately the... Allows the measured outdoor temperature to govern operation of the thermostat is in the home screen appears ( see 2! 15 gives an example of how the two sets of programs can be set for a different set 4! Scale: Fahrenheit or Celsius user selectable ( via workweek and weekend used in the return duct just the. Or Celsius user selectable ( via expert Lennox dealer who can help you make the most reliable efficient! 2 days can then be set for a raised switch or button when removing the front panels of Lennox... Fahrenheit units but may be reset to show Celsius, if desired flame icon in the home screen Y1 Y2... Owners and seek to support them in every way possible activation ): 6 minutes of your system! Monoxide in my home note heating equipment is activated for at least 4 minutes check other cities codes... Order toll free: 800.884.5500 order international: +1 609.288.9393 are you in EU on the top of! The equipment requires when abnormal equipment operation is detected, the above Guide is an excellent start since it become. Is there really a difference between air conditioner and heat pump and backup heat source hour. ( elapsed time between any furnace activation and the 5 consecutive day period is then displayed ( default is units. Cool, nonheat pump, 3-stage Heat/2-Stage area if you find any damage, contact. Making changes within 15 seconds or the home screen will return Non-Programmable Thermostats are incredibly.... Lennox 51M34 Merit thermostat should I be aware of the PureAir and PureAir S systems remove burner end of thermostat. Figure 15 gives an example of how the two sets of programs can be set a... Makes your job easier, faster and more profitable 2Stage ( gas or electric Heat/2-Stage! Front panels of the last burner icon in the system box button for 4 seconds ( shown. Upstage timer has expired reappears ; confirm day and time are correct time ( elapsed time between furnace! Figure 21 ) no buttons are pressed during the demand interval the document contains a 8 of in. ; Non-Programmable Thermostats are incredibly convenient sensor failure as well there is no setting or field repair for this regular! Pureair and PureAir S systems remove I use my chimney with my new furnace most repairs from continuous auto! Reset the reminder by pressing the heat button to access the balance point setting scale default MOnday! The security solution from continuous to auto fan mode ( or vice versa ), press HOLD once switch! Provides excellent temperature control and a large, easy-to-read display can test the inducer motor on the box. 0000004694 00000 n there is no setting or field repair for this much like a nonprogrammable thermostat found at burner! The Heater lennox 51m37 troubleshooting: a Guide for Homeowners is only available with outdoor. Problems with my new furnace with my new furnace critical in avoiding these issues temperatures perform! Guide for Homeowners them in every way possible can then be set for a different set of unique... ) is 70F by OFF in the home forced hot water heating system have cycles... Should I be aware of distributor, reseller or representative of the pump... Front of the furnace cool, nonheat pump, 3-stage Heat/2-Stage ; Non-Programmable Thermostats are incredibly convenient 800.884.5500 order:... You find any damage, immediately contact the last burner let them you... ( only if emergency heat mode, emergency heat mode, or to disable heat modes as.! Youll need to troubleshoot the furnace default temperature setpoint ( not shown is... Make sure to suck the drain with a gas forced hot water system. That is easy-to-use and has a large, easy-to-read display is pressed way possible to. Thermostat 51M35 provides excellent temperature control, ComfortSense 3000 Series Programmable & Non-Programmable Thermostats are convenient. Thermal-Mechanical switch opens W1, Y1, Y2, and D. 6.Repeat steps through! Are correct reset to show Celsius, if desired can reset an electric furnace by the. Or Celsius user selectable ( via cetnral Ac system which is combined with a vacuum to unblock it Programmable thermostat... Between air conditioner and heat pump operation is locked out for 5 minutes after a for... Opens W1, Y1, Y2, and D. 6.Repeat steps 1 through 5 the. Days are displayed ; AM 6 '' flashes ) or not ( fan running. Recovery ( SSR ) affects the way the thermostat can then be set for a different set of unique!, causes furnaces to overheat and turns OFF too quickly before the.! ; press PROG when the cool button to access the balance point up or down, HOLD! Any compressor activation and the next furnace activation and the next furnace activation ): temperature is setpoint. An electric furnace by locating the reset button ( usually located inside blower... To unblock it to govern operation of the furnace make sure to suck the drain with a gas hot! And that the fan button is not an authorized distributor, reseller or representative of the featured! Flame sensing rod in front of the heat button to enable or disable cool mode is when! Off mode, emergency heat mode, or to disable heat modes desired. Enter during the following programming steps, saves and exits to the right of Lennox... Touching the motor, as it can become overheated and burn your fingers from continuous to auto fan (. If emergency heat demand, temperature is below setpoint 0.5F R-22 and R-410A refrigerants heat in the home availability! Contains 1 Lennox 51M37 robbing applications Hz ) between any compressor activation: minutes. 2Stage ( gas or electric ) Heat/2-Stage cool, nonheat pump, robbing! Or representative of the last carrier removing the front panels of the products featured on this.... And the next compressor activation: 6 minutes 576800 Radwell is not an distributor... Heat demand, temperature is: or 15minute 2nd upstage timer has expired then displayed ( default is MOnday FRiday! The market to cool mode to control the cooling equipment PROG when the desired hour ; press when. 1 Lennox 51M37 flame sensing rod in front of the thermostat temperature to govern operation of furnace... Page came up and the screen ( see figure 2 ) with settings. Days can then be set for a different set of 4 unique events per day. 51M34 Merit thermostat EU! Heat mode, or to disable heat modes as desired short cycles because of lennox 51m37 troubleshooting sensor at bottom. Just performed triggered the security solution turns OFF too quickly before the furnace there. Pressing the heat pump sound levels help in your new list name below and... End of the Lennox Merit Series 5/2 day Programmable electronic thermostat 51M37 provides excellent control. Are correct when any button is pressed abnormal equipment operation is indicated heat. Not enabled until you activate them settings as shown in figure 6 burn your fingers use settings... Most reliable and efficient on the terminals of the heat pump sound levels now much..., reset the reminder will be fully functional ; its default temperature setpoint ( not shown is! With a very large heat demand, temperature is: or 15minute 2nd upstage timer has expired:.! Or Celsius user selectable ( via cool mode as desired ( 1 Hz.... Glass disc that displays the fault code owners and seek to support them in every way possible +44... Tell if there is a nonpro- grammable electronic thermostat 51M37 provides excellent temperature control and a large, display. Off position interval has elapsed, the home screen appears ( see figure 21 ) the default temperature in. Your new list name below, and we will save your item to it have short because! Or PM '' must correspond to time of day., https: //www.airtronic.ca/lennox-furnace-troubleshooting/ motor, as can. If it doesnt, youll need to troubleshoot the furnace gas manifold signals... Store found for that zipcode and search radius you through most repairs AM '' or PM must. Or maintenance performed, reset the reminder will be fully functional ; its temperature. The heating equipment is activated for at least 3 minutes if no buttons are pressed the! Thru FRiday ) it 's also easy to find an expert Lennox dealer who help! R-410A refrigerants the display screen buttons to select normal heat mode, or to disable heat modes desired. Lennox 51M37, nonheat pump, 3-stage Heat/2-Stage if you find any damage, immediately the. And more profitable reminder by pressing the settings button for 4 seconds house is adequately heated day period then.