. . . When an Arrow, HOLD, HEAT, or COOL button is pressed. . . . Register in 3 easy steps, today! In normal heat mode, both the heat pump and the backup heat source are used to provide heat. . . . . With a very large heat demand, temperature is: OR 15minute 2nd upstage timer HAS expired. . The circuit breaker might be the source of the issue, so check if its flipped to the off position. NOTE The HOME screen will reappear about 15 seconds after the final arrow button press. . . . . . . . . Use the SETTINGS button to access the balance point setting. . . . All display segments are momentarily activated. 0000003764 00000 n
. . . . If the reset button fixes the issue, youre good for going. . . Troubleshooting Common Problems Furnace not heating 25 possible causes and potential solutions Learn More Featured Video 03:52 Furnace is noisy or loud 10 possible causes and potential solutions Learn More Featured Video 01:49 Furnace starts then stops 6 possible causes and potential solutions Learn More Featured Video 02:47 . . 1.AM12" will flash on the screen. . What are the health benefits of a fresh-smelling home? What are some sources of chemicals in the home? . . . 0000057326 00000 n
. . What are the advantages of the CompleteHeat. A pressure switch that senses negative pressure in the vent shuts down the furnace. The limit switch is located on the control panel side of many Lennox furnace models. . Refer to the installation manual for instructions re-. After the desired setpoint is reached, the HOME screen will reappear after about 15 seconds. . Permanent Hold (HOLD displays solid; PROG not displayed); press HOLD again to return to the program (PROG displays; HOLD not displayed). . Press DAY/TIME. Set the thermostat to cool mode to control the cooling equipment. . Whose claim do I believe? How does that compare to a whole-home humidifier? Vent pipes must be free of blockage. . . . Do NOT begin pressing buttons until after you read the following section describing each button. . . . Home Comfort. Buttons are located behind the small door on the right hand side of the thermostat (see figure 3). . Day selections are abbreviated as MO , TU", WE", TH", FR", SA", and SU". At this point, if the equipment has been fully powered and if a heat demand were present, the system would begin operating. . . . . Large rubber buttons and a backlit display permit to quickly find the right settings. . Programmable & Non-Programmable Thermostats Accurate temperature control 3 Heat/2 Cool - Heat Pump or Dual Fuel With simple one-touch operation and precision temperature control, ComfortSense 3000 Series Programmable & Non-Programmable Thermostats are incredibly convenient. . . . . . . . 0000005623 00000 n
Press the UP/DOWN arrows to change the hour. . . . . . In the 5day bar graph, note how programs A and C reflect the desired warmth while the home IS occupied (72); B allows less heating while the home is NOT occupied; D reflects a cooler sleeping temperature. All display segments are momentarily activated. If your thermostat doesnt appear to have power, it could be that the batteries are low. What do all those air conditioner and heat pump ratings mean? NOTE Heating equipment is activated for at least 3 minutes if no buttons are pressed during the demand interval. . If the breaker is in the middle, move it to the off position. . These optional reminders are not enabled until you activate them. . . . . . . . . . . . . . . . . 0000003631 00000 n
. . . This means that the temperature program data is ignored and the thermostat functions much like a nonprogrammable thermostat. . . Look for a raised switch or button when removing the front panels of the furnace. 7, Thermostat Output Table . . . . . What is the best thermostat to use for my heating system? . . If the fan setting is ON, the G output is activated in all cases. Refer to the installation manual for instructions re-. . Adjusting Temperature Setpoint in Hold Mode. . . . . Cooling operation is indicated by flashing snowflake" icons in the SYSTEM box. NOTE Temperature scale default is Fahrenheit units but may be reset to show Celsius, if desired. . . 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. . . . Which air filtration products make ozone? . 1 LENNOX CATALOG # BRAND DESCRIPTION LOCK IT PRICE (U.S.) LOCK IT PRICE (CAN.) Please call or email us with your request. 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. . . . You can check a few things when your furnace is not working. . This section contains various Lennox Thermostats. To adjust the balance point up or down, press the Up/Down arrow buttons to the right of the display screen. . . . These instructions are intended as a generalguide and do, Check equipment for shipping damage. . . . 0000008316 00000 n
* For most applications, E will be jumpered to W1. . . . The AC system is a high end Lennox with a programmable Lennox thermostat. . . . . 0000004561 00000 n
. Why should I be concerned about my home's air? . grammable electronic thermostat that is easy-to-use and, has a large, easy-to-read display and excellent tempera-, ture control. . . . . Why is proper air circulation important in the home? . Category: HVAC. . . . . . . Order toll free: 800.884.5500 Order international: +1 609.288.9393 Are you in EU? . . . Unscrew the furnaces top, sides, and front panels with a flathead screwdriver. 51M37. . . After the filter has been changed or maintenance performed, reset the reminder by pressing the SETTINGS button for 4 seconds. . . To install 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. . I am having problems with my cetnral Ac system which is combined with a gas forced hot water heating system. . How does excessive humidity affect my home comfort and health? . . Keep reading this article. There are 2 near you. . 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. . Wednesday is defined as the 5day programming (Thursday and Friday would constitute the 2day programming). . The thermostat also includes a programmable filter change reminder and a system check indicator. . 5, SETTINGS Filter /Maintenance Reminder . . . Use UP or DOWN arrow buttons to display the current day. . . . . . This indicates that the equipment requires service from a qualified service technician. The critical components of a Lennox furnace are the heat exchanger, blower, humidifier, thermostat, and auxiliary controls. At this point, the thermostat will be fully functional; its default temperature setpoint (not shown) is 70F. . Replace these to see if they work correctly. 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. If the thermostat is in normal heat mode when the HEAT button is pressed, then emergency heat mode is enabled. . . . . 5.Repeat steps 2 through 4 for periods B, C, and D. 6.Repeat steps 1 through 5 for the 2day program. . The balance point can be set at any temperature between. 0000023413 00000 n
. . . . . . . Refer to the installation manual for instructions regarding installation and wiring of the thermostat. An optional outdoor temperature sensor provides auxiliary heat lockout, balance point operation, and dualfuel compatibility. . The Lennox Merit Series 5/2 day programmable electronic thermostat 51M37 provides excellent temperature control and a large, easy-to-read display. 0000054656 00000 n
If continuous fan mode is enabled (ON displayed in FAN box see figure 13), the fan will run continuously regardless of whether the heating or cooling equipment is running. . If you are unsure how to recognize the switch, refer to your users manual. . Started yesterday I took the back off - Answered by a verified HVAC Technician . . When HOLD is displayed at the HOME screen, the thermostat is in a temperature hold condition. . How can I know if a ventilation system is right for me? . . . The new LennoxPROs e-Business System makes your job easier, faster and more profitable. . . . . . Installing the wrong kind of thermostat is likely to cause miscommunication and result in system failure. . Here are some of our favorite tips and tricks for troubleshooting common issues with your Lennox furnace and how to fix them fast! . SETTINGS Filter and Maintenance Reminders. . . . . . . . Access to training . Add to Cart. Each button press adjusts the setpoint up or down by 1 degree. . . Lennox Residential has all the answers to your home heating and cooling, SunSource solar energy system, air conditioner and furnace questions. You want to relax and unwind in the comfort of your own space. . There are no new entries! FAN box is present (indicating that the fan is running) or not (fan not running). Read the operation manual on this page to properly set up the operation of the programmable digital thermostat. 0000021406 00000 n
service. . To program events and temperatures, perform the following steps, once with Cool selected and once with Heat selected. . It's also easy to find an expert Lennox dealer who can help you make the most of your HVAC system. . . 8, Thermostat Output Table . 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. . . . Press Up/Down arrow buttons to select the desired reminder intervals. This document describes the operation of Lennox thermostat. . Why should I choose an ENERGY STAR product for my home? . . 6, Removing/Installing Thermostat . . . Press the Heat button to enable or disable HEAT mode. You can test the inducer motor by touching it. Use the Up/Down arrow buttons to select the desired temperature setpoint; press PROG. . Use the Up/Down arrow buttons to select the desired minute; press PROG. NOTE During an electrical storm or similar disturbance, the backlight may activate for a few seconds. . 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 . . Lift the front panel off and set it aside afterward. . . I cut the wire while to re route it but I had turned it off Ask an Expert Home Improvement Questions HVAC Questions Ask Your Own HVAC Question image.jpg image.jpg image.jpg BillyHvac cutting the wires if they were live likely didn't ruin the thermostat? 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. Press DAY/TIME. . 51M37 - Programmable Thermostat List Price: $135.20 Your Price: $120.31 You save: $14.89 Choose Options 11Y05 - Programmable Thermostat List Price: $263.51 Your Price: $241.90 You save: $21.61 Choose Options 13H13 - Programmable Thermostat List Price: $331.20 Your Price: $221.66 You save: $109.54 Choose Options 19V30 - iComfort S30 Thermostat . 0000044287 00000 n
Use the UP/DOWN arrow button to display the minutes past the hour. . Electronic programmable thermostat for heat pump. . You can reset an electric furnace by locating the reset button (usually located inside the blower part) and pressing it down. . . . . . This website is using a security service to protect itself from online attacks. xref
. Press DAY/TIME. . This indicates that the cooling demand has been satisfied and that the cooling equipment has been turned off. . 747 0 obj<>
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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. The air conditioning was working sporadically earlier but now is not coming on at all. . . . . . Make sure to suck the drain with a vacuum to unblock it. . . What is the difference between an ARI and AHRI? . . garding installation and wiring of the thermostat. . . . . The system check indicator will notify the user of the need for equipment service. . . 51M35 thermostat), you may notice various cooling levels being delivered during a demand. At the change of seasons, or to accomodate abnormal seasonal temperature swings, you must manually select to the opposite conditioning (Heat or Cool) program. The backlight will turn off 15 seconds after the HOME screen reappears. . But with so many different variations of furnaces on the market today, its no wonder these devices can cause so much stress for homeowners. . Press the PROG button when finished. After the desired balance point is reached, the HOME screen will reappear after about 15 seconds. . . . . How do I know which indoor air quality product is right for me? Performance & security by Cloudflare. . Any 5 consecutiveday span may be selected, for example, in figure 11, Saturday through Wednesday is defined as the 5day programming (Thursday and Friday would constitute the 2day programming). . . 3.Day MO" (Monday) will flash. . BillyHvac, Journeyman HVAC Tech. . . Please check other cities zip/postal codes for same-day availability. . . Exclusive HVAC eTools Every time my current furnace cycles on, I hear a rush of air that's so loud, it wakes me from my sleep. Recognize the switch, refer to the right SETTINGS troubleshooting common issues with your Lennox furnace models reached, thermostat! Not begin pressing buttons until after you read the operation manual on this page to properly set up the manual! 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