The 2day bar graph would support daylong occupancy and, because the first program begins later, a lessdemanding time schedule. . . . 24VAC is present on the terminals of the thermostat bracket. 0000017388 00000 n . . . 5/2 day programmable thermostat (8 pages), Color touchscreen programmable thermostat (20 pages), Commercial touchscreen thermostat (30 pages), Color touchscreen programmable wi-fi . If the thermostat is in cool mode, pressing the Cool button disables COOL mode (indicated by OFF in the SYSTEM box see figure 10). . Press DAY/TIME. . . . The thermostat also includes a programmable filter change reminder and a system check indicator. . . Consult authorities, Check equipment for shipping damage. . . . The default setting for the reminders is OFF (disabled). . . . If your system supports 2stage heating (as does the 51M35 thermostat), you may notice various heating levels being delivered during a demand. . Buttons are located behind the small door on the right hand side of the thermostat (see figure 3). Note whether a fan icon in the. . NOTE If no buttons are pressed during a demand for cooling, the equipment must operate for at least 4 minutes. . . Why is carbon monoxide (CO) in the home dangerous? . . A fast flash rate equals three flashes per second (3 Hz). . . . . . . It includes a programmable filter change reminder, an equipment maintenance reminder, and a system check indicator to notify the user when the equipment requires service. . . . . . . . . NOTE Heating equipment is activated for at least 3 minutes if no buttons are pressed during the demand interval. If your thermostat doesnt appear to have power, it could be that the batteries are low. . . . . . . . . . . . . T emperature Display. Thats why we offer a collection of resources that make it as easy as possible for you to get the answers and support you need. Thermostat model 51m37 thermostat blinking. . . . Measurement Range: 35F to 99F Measurement Resolution: 0.5F Measurement Accuracy: +/1F. Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page. . Use the SETTINGS button to access the balance point setting. This prevents excessive cycling of the equipment when the outdoor temperature is near the balance point. If auto fan mode is selected (AUTO displayed in FAN box see figure 14), the fan will only run when the heating or cooling equipment is running. . Lennox ECBA25-10CB, 10 kW Electric Heat Kit with Circuit Breaker, 208-240 VAC 1 Ph. . Upload manuals that we do not have and get. . A pale blue display backlight illuminates for 30 seconds each time any button is pressed. . . . . . . To determine the furnaces error codes, you may view the LED flashing light quantity and colors. . . After a demand has been satisfied, cooling equipment operation is locked out for 5 minutes. . Heating operation is indicated by a flame icon in the SYS-. . . . . . . Electronic programmable thermostat for heat pump. 4, FAN Controlling Fan Operation . Honeywell RTH7600 Series Quick Start Manual, Honeywell CHRONOTHERM III T8611G User Manual, Aube Technologies TH149 Installation And User Manual, Danfoss TP4 User & Installation Instructions Manual, User & installation instructions manual (84 pages), Honeywell T1 Pro Installation Instructions Manual, Installation instructions manual (24 pages), Lux Products DMH100 Series Installation And Operating Instructions, Installation and operating instructions (3 pages), Bryant Preferred Series Installation Instructions Manual, Installation instructions manual (12 pages), DELTA DORE TYBOX 610 RF Installation Manual. Also, when working with the thermostat dip switches, use a nonconductive tool and take caution to avoid making any contact with the circuit board, its imprinted circuitry and its connector prongs. . 0000004826 00000 n . . NOTE Tables 2 and 3 on page 8 show all system and programming defaults. If the thermostat is in HEAT or OFF mode, cool mode is enabled when the COOL button is pressed. . . Our focus on consistent temperatures and high efficiency means that your homeowners will stay warm all winter long and save money on their energy bills. . . You can email the site owner to let them know you were blocked. . Any 5 consecutiveday span may be selected, for example, in figure 14, Saturday through. . . See page 7. . 0000005092 00000 n . . . . If this happens, it is essential to act quickly, as the red blinking light may indicate various issues or malfunctions with your heating system. . . 6, Thermostat RESET . . . . . . Do I Qualify For The Extended Limited Warranty? . 2.Use the Up/Down arrow buttons to select the desired hour; press PROG when the desired hour is reached. . The action you just performed triggered the security solution. What are some of the health effects of carbon monoxide? . . . The default temperature setpoint in Hold mode is 70F. If you find any, ThisdocumentdescribestheoperationofLennoxthermostat, When power is initially applied to the thermostat,thedis-, All display segmentsaremomentarily activated. . For applications involving the use of a balance point (whereby the outdoor temperature is to be used to restrict either heat pump operation or backup heat source operation), the optional outdoor sensor (part number X2658) MUST be installed. . . If the outdoor sensor is attached to the thermostat, press the SETTINGS button three times to access the Balance Point Settings screen (see figure 20). 6, SETTINGS Filter and Maintenance Reminders . garding installation and wiring of the thermostat. . . . . . 5, Service Indicator . . 5, PROG Thermostat Programming . . . . 0000008159 00000 n . . . . . . . Engineering Data Lennox 51M37 Engineering Data Language: English Pages: 2 Operation Manual Lennox 51M37 Operation Manual Language: English Pages: 10 Similar Models Lennox 49M55 Lennox 49M56 Lennox 49M57 Lennox 51M32 Lennox 51M33 . . . When HOLD is displayed at the HOME screen, the thermostat is in a temperature hold condition. . . . . . Press DAY/TIME. 51M35 Series Thermostat . . . . Display Scale: Fahrenheit or Celsius user selectable (via. Use the COOL button to enable or disable cool mode as desired. 51M37. . ( AM" or PM" must correspond to time of day.) The existing 5 consecutive day period is then displayed (default is MOnday thru FRiday). . . . . Call a Lennox technician to save the day if its something beyond your skillset or you dont have the right tools. Conversely, if the balance point is 40F and the actual outdoor temperature is 45F, the outdoor temperature must drop to 37F before equipment adjustment occurs. . Started yesterday I took the back off - Answered by a verified HVAC Technician . . . Exclusive HVAC eTools . My Dealer . . Refer to the installation manual for instructions regarding installation and wiring of the thermostat. Check for a power outage, furnace filter, or furnace blower. . . . . 0000003631 00000 n . . This is indicated by HEAT in the SYSTEM box as shown in figure 4. If SSR is disabled, the thermostat will react to a program event at the time the event occurs. . . . If the thermostat is in heat mode, pressing the Heat button enables EMG. . . 5, FAN Controlling Fan Operation . Press DAY/TIME. . . . Use the Up/Down arrow buttons to adjust the hold setpoint. 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. . . . reset" the thermostat to its default condition. Start making changes within. NOTE If no buttons are pressed during a demand for cooling, the equipment must operate for at least 4 minutes. 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. . . . . . . NOTE The balance point feature allows the outdoor temperature to rise or fall 3F above or below the balance point. . . There are 2 near you. . . . How effective are Healthy Climate solutions, compared to room air filters? Heating operation is indicated by a flame icon in the SYSTEM box. . NOTE Temperature scale default is Fahrenheit units but may be reset to show Celsius, if desired. . . 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. . . . . Then, if the room temperature is lower than the temperature setpoint, as shown in figure 6, the thermostat detects a heating demand and will activate the heating equipment to satisfy the demand. . Use the FAN button to select either continuous fan mode or auto fan mode. . Use the Up/Down arrow buttons to select the desired temperature setpoint; press PROG. As a bonus, this Lennox furnace troubleshooting guide will save you money in the long run and prolong the life of your system. . . . . . . . The pressure switch may open because of snow piling up and blocking the exhaust or intake vent pipes. What is the difference between the Lennox Equipment Limited Warranty and the Lennox 10-Year Extended Limited Warranty Program? . . . . . . . . . . . . . 3.Use the Up/Down arrow buttons to select the desired minute; press PROG. . . . Learn More List Price: $135.20 Your Price: $120.31 (You save $14.89 ) (No reviews yet) Write a Review SKU: 51M37 At any time the program is running, from the HOME screen, set a permanent hold (program override) by pressing the HOLD button (see figure 9). . 0000025642 00000 n Use the Up/Down arrow buttons to display the minutes past the hour. The thermostat now functions much like a nonprogrammable thermostat. . A slow flash rate equals one flash per second (1 Hz). After the filter has been changed or maintenance performed, reset the reminder by pressing the SETTINGS button for 4 seconds. 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? . NOTE This thermostat will NOT automatically switch from heating to cooling, or vice versa; operator involvement is required. . . damage, immediately contact the last carrier. . Your IP: . . . . . How do I register my product? Someone has cracked a damaged ceramic insulator on a flame sensing rod. . . . . Consult authorities, Check equipment for shipping damage. . SBBP: outdoor temperature is below balance point, SABP: outdoor temperature is above balance point, SIn all cases, the state of the B terminal is opposite that of the O terminal, SData are tabulated for AUTO fan setting. . . . . AND 30-minute upstage timer HAS NOT expired. . . . Use a paper clip or small pencil to press the RESET button; ALL thermostat settings will be reset to the defaults listed in the Default Thermostat Settings section. This indicates that the cooling demand has been satisfied and that the cooling equipment has been turned off. . 0000052925 00000 n How does that compare to a whole-home humidifier? . How can I get rid of odors inside my home? . . . . . . . Lennox furnaces are the most reliable and efficient on the market. . . Category 4 furnaces, also known as condensing furnaces, are the most efficient models. Then, if the room temperature is higher than the temperature setpoint, as shown in figure 11, the thermostat detects a cooling demand and will activate the cooling equipment to satisfy the demand. . . 0000023413 00000 n Check equipment for shipping damage. . . . . Use Up/Down arrow buttons to display the current day. . . . . . . . . Sampling Method: temperature measurements sampled every 15 seconds. . . . When PROG or DAY/TIME is pressed, a field begins flashing, expecting another input. . . . ), Measurement Scale: Fahrenheit Measurement Range: 35F to 99F Measurement Resolution: 0.5F Measurement Accuracy: +/1F. 51M37 Manuals . 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. . Without it, the furnace would not know whether a flame was present. 0000005490 00000 n . . . . . The thermostat hinges on tabs on the top of the subbase; no tool is needed to remove the thermostat from the subbase. 1.Press and release PROG. . . When power is initially applied to the thermostat, the dis-. . How does overly dry air affect my home comfort and health? However, if SSR is enabled, the thermostat will react to a program event before the event occurs such that the desired temperature is reached at the time of the event, not after. . . . . I have a 51M37 Lennox thermostat and the display is blank/dark. What harmful household odors should I be aware of? A Lennox furnace requires regular maintenance to keep it running efficiently and optimally. . . . . . If youre going to do your maintenance, the above guide is an excellent start since it can get you through most repairs. . . Large rubber buttons and a backlit display permit to quickly find the right settings. SET would delete all programming and settings and therefore should only be used on rare occasions when the the thermostat fails to function as designd and/or as programmed. . The minimum flame sense current is 0.5 microAmps. . . . This document describes the operation of Lennox thermostat, 51M32. . . To change from continuous to auto fan mode (or vice versa), press the FAN button. . . . If continuous fan mode is enabled (ON displayed in FAN box see figure 16), the fan will run continuously regardless of whether the heating or cooling equipment is running. . 51M37 - Programmable Thermostat Lennox ComfortSense 3000 Touchscreen MERIT Thermostat 5/2 Programmable ComfortSense 3000 Series Programmable & Non-Programmable Thermostats Accurate temperature contr. . CMav@* Is there really a difference between air conditioner and heat pump sound levels? . . . . . . . . . . How can I know if a ventilation system is right for me? 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. . Cooling operation is indicated by flashing snowflake" icons in the SYSTEM box. .and more! If you find any. Figure 12 gives an example of how the two sets of programs can be set for a normal workweek and weekend. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[320,100],'climesense_com-box-4','ezslot_6',112,'0','0'])};__ez_fad_position('div-gpt-ad-climesense_com-box-4-0');When the thermostat demands warmth, the inducer motor comes on to guarantee there are no restrictions on exhaust and intake vents. . SKU: 51M37 Lennox. If the thermostat is in emergency heat mode when the HEAT button is pressed, then heat modes are disabled. . . Consult authorities having jurisdiction before installation. 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. Follow these steps to reset your Lennox furnace: The furnaces control panel will have a power switch on its side, which looks like a wall light switch. 0000004428 00000 n . . . This document describes the operation of Lennox thermostat, 51M37. 0000003898 00000 n Press DAY/TIME. While in Temporary Hold, press HOLD once to switch to. . Furnaces often have short cycles because of flame sensor failure as well. . The circuit includes a flame sensing rod in front of the last burner. . Figure 15 gives an example of how the two sets of programs can be set for a normal workweek and weekend. What can be done about detecting carbon monoxide in the home? Right hand side of the thermostat is in a temperature Hold condition the LED flashing light and! 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