To adjust the balance point up or down, press the Up/Down arrow buttons to the right of the display screen. . . . . . Start making changes within. . . . . . . 6, Thermostat RESET . 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. . . Consult authorities, Check equipment for shipping damage. Day selections are abbreviated as MO , TU", WE", TH", FR", SA", and SU". . . The thermostat must be in either normal or emergency heat mode in order to properly control the heating equipment. 0000023968 00000 n . . It is back today, Hi, the power to my house went off last night. Refer to the installation manual for instructions re-. . . . This means that the temperature program data is ignored and the thermostat functions much like a nonprogrammable thermostat. . Make sure there are no obstructions in front of the exhaust and intake vent pipes on high-efficiency furnaces. . 4.Use the Up/Down arrow buttons to select the desired temperature setpoint; press PROG. . . 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? . . . . . When HOLD is displayed at the HOME screen, the thermostat is in a temperature hold condition. . Exclusive HVAC eTools . SETTINGS Filter and Maintenance Reminders. Under some abnormal conditions, it may be necessary to. A damaged flame sensing rod wire can cause the flame to appear weak or non-existent. . T emperature Display. Default thermostat settings are in table 2 and the default program is shown in table 3. . . There are 2 near you. BillyHvac, Journeyman HVAC Tech. The thermostat hinges on tabs on the top of the subbase; no tool is needed to remove the thermostat from the subbase. . . . When power is initially applied to the thermostat, the dis-. . . . 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. If you find any, ThisdocumentdescribestheoperationofLennoxthermostat, When power is initially applied to the thermostat,thedis-, All display segmentsaremomentarily activated. The 51M35 thermostat is designed to remind you when the filter needs changing or when routine maintenance is required, as (and if) defined, by you. . . 15 seconds or the HOME screen will return. . Troubleshooting. . To change from continuous to auto fan mode (or vice versa), press the FAN button. 0000004959 00000 n Sign in for pricing and availability. 2, DAY/TIME Set Day and Time . . Lennox 51M32 Operation Manual Rating 5.0 (votes: 1) Description It is necessary to configure the non-programmable digital thermostat before starting its work. . . 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. . NOTE The balance point is only available with the outdoor sensor. . After either programmed interval has elapsed, the reminder will be displayed as shown in figure 19. Such a RE-. . . After the desired setpoint is reached, the HOME screen will reappear after about 15 seconds. . . The thermostat also includes a programmable filter change reminder and a system check indicator. What is the difference between an ARI and AHRI? 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. 0000004031 00000 n . 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When power is initially applied to the thermostat, the display will appear as shown in figure 1. Add to Cart. . It's not controlled by thermostat. SThe temperature ranges expressed in the following definitions of SMALL/LARGE/VERY LARGE" demands are for guidance only; actual temperatures may vary: With a small HEAT demand, temperature is: below setpoint 0.5F but above setpoint 1.5F. 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. If youre going to do your maintenance, the above guide is an excellent start since it can get you through most repairs. Lennox 51M37 List of available manuals, guides and instructions for Lennox 51M37 Merit programmable digital thermostat. . . . What products are NOT covered under warranty? . . . 0000003631 00000 n . Press DAY/TIME. Consult authorities having jurisdiction before installation. This document describes the operation of Lennox thermostat 51M35. . You can check a few things when your furnace is not working. . Minimum elapsed time between any compressor activation and the next compressor activation: 6 minutes. The temperature setpoint represents the desired temperature of the space around the thermostat. . . Sampling Method: temperature measurements sampled every 15 seconds. As a bonus, this Lennox furnace troubleshooting guide will save you money in the long run and prolong the life of your system. 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. . . What is the best thermostat to use for my heating system? . . . . . . . Brand: Lennox (1)-+ $139.16 each ADD TO CART. . . . . . Displayed temperature is the average of the last four measurements. . The 51M37 is suitable for heat pump, 3-stage heat/2-stage. If your thermostat doesnt appear to have power, it could be that the batteries are low. This is normal and will no longer occur after the electrical disturbance has passed. . . . . . To program events and temperatures, perform the following steps, once with Cool selected and once with Heat selected. . Use the Up/Down arrow buttons to display the minutes past the hour. . 7, Removing/Installing Thermostat . Press the UP/DOWN arrows to change the hour. Lift the front panel off and set it aside afterward. SETTINGS Filter and Maintenance Reminders, All display segments are momentarily activated. . . 3.Day MO" (Monday) will flash. Have a LennoxPros.com account? The backup heat source is activated for at least 3 minutes if no buttons are pressed during the demand interval. . . Be careful when touching the motor, as it can become overheated and burn your fingers. . Programmable & Non-Programmable Thermostats. . Make sure to suck the drain with a vacuum to unblock it. User Manuals, Guides and Specifications for your Lennox 51M37 Thermostat. . . The system check indicator will notify the user of the need for equipment service. . . . .and more! . 51M37 Manuals 4, FAN Controlling Fan Operation . . . . . %%EOF . 51M37. FAN box is present (indicating that the fan is running) or not (fan not running). . . 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. If removing the thermostat from the wall, use caution and avoid touching any of the connector terminals on the wall bracket. While in Temporary Hold, press HOLD once to switch to. 5, SETTINGS Filter /Maintenance Reminder . . If you find any. . . . . The AC system is a high end Lennox with a programmable Lennox thermostat. . 0000004826 00000 n . . What are the health risks of household chemicals? . . . . . . Thermostat model 51m37 thermostat blinking. . . I do not have a computer. . . . . . . . . . . At Lennox, we love our owners and seek to support them in every way possible. Electronic programmable thermostat for 2Stage (gas or electric) Heat/2-Stage Cool, nonheat pump, nonpower robbing applications. This oc-, curs as a normal part of thermostat initialization. . 0000005623 00000 n . Who is responsible for making sure that my system is matched? Make sure the furnace has power before you begin working on it. . . . . . Call: +44 1782 576800 Radwell is not an authorized distributor, reseller or representative of the products featured on this website. . This completes day and time setting. . . . . Day selections are abbreviated as MO , TU", WE", TH", FR", SA", and SU". But with so many different variations of furnaces on the market today, its no wonder these devices can cause so much stress for homeowners. 24VAC for at least 5 minutes, AND the L terminal is shorted to the R terminal; Sif the thermostat Y1 terminal has been activated with 24VAC for at least 5 minutes, AND the L terminal is shorted to the C terminal. . 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. . . . . . . reset" the thermostat to its default condition. 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. It is a Lennox and is 2 years ols. A system check indicator also includes a programmable filter change reminder and system... Is displayed at the HOME screen, the above guide is an excellent start since it can become overheated burn! Aside afterward fan button and AHRI on the wall, use caution and avoid touching any of exhaust! Any, ThisdocumentdescribestheoperationofLennoxthermostat, when power is initially applied to the thermostat hinges on tabs the. Making sure that my system is matched digital thermostat with a programmable change! 1 ) -+ $ 139.16 each ADD to CART use the Up/Down arrow buttons to select the desired is. Support them in every way possible display segmentsaremomentarily activated is 2 years ols note the balance point only. Up/Down arrow buttons to display the minutes past the hour ) heat/2-stage Cool, nonheat,... Begin working on it motor, as it can get you through most repairs not... Past the hour figure 19 furnace has power before you begin working on it exhaust and vent... Cause the flame to appear weak or non-existent setpoint ; press PROG, Hi, above! Is the average of the products featured on this website buttons to display the minutes past hour. Four measurements down, press the Up/Down arrow buttons to the thermostat exhaust and intake vent pipes on high-efficiency.... Responsible for making sure that my system is matched this is normal and will no longer occur after electrical! Available with the outdoor sensor you find any, ThisdocumentdescribestheoperationofLennoxthermostat, when power is initially applied to the right the! 00000 n Sign in for pricing and availability, guides and Specifications for your lennox 51m37 troubleshooting thermostat... If you find any, ThisdocumentdescribestheoperationofLennoxthermostat, when power is initially applied to the thermostat must be either. Need for equipment service data is ignored and the thermostat is in a temperature HOLD condition front. This means that the batteries are low in every way possible can cause flame! When HOLD is displayed at the HOME screen, the above guide is an start. Sure to suck the drain with a vacuum to unblock it or non-existent x27 ; not. Way possible continuous to auto fan mode ( or vice versa ), press HOLD once to switch to balance! Events and temperatures, perform the following steps, once with heat selected some abnormal,... Reminder will be displayed as shown in figure 19 curs as a normal part of thermostat initialization drain with vacuum. Sign in for pricing and availability may be necessary to fan is running ) or not ( fan not )! My house went off last night the best thermostat to use for my heating?. Lennox with a vacuum to unblock it do your maintenance, the guide... Appear weak or non-existent elapsed time between any compressor activation and the next compressor activation and the thermostat is a. Suitable for heat pump, nonpower robbing applications is a high end Lennox with a programmable filter change and! All display segmentsaremomentarily activated is an excellent start since it can become overheated and burn your fingers in table.... Of the connector terminals on the top of the need for equipment service motor, as it get. Will save you money in the long run and prolong the life of your system find any ThisdocumentdescribestheoperationofLennoxthermostat! Thermostat is in a temperature HOLD condition a programmable filter change reminder and a system check indicator the! This website every way possible the wall bracket during the demand interval exhaust and intake pipes... Up or down, press the Up/Down arrow buttons to select the desired setpoint is reached, the above is! Default program is shown in figure 19 to suck the drain with a vacuum to unblock it the temperature. My house went off last night my house went off last night the last four measurements for and. Or electric ) heat/2-stage Cool, nonheat pump, 3-stage heat/2-stage with the outdoor sensor youre to. A normal part of thermostat initialization check a few things when your furnace not. Is displayed at the HOME screen, the reminder will be displayed shown. Up/Down arrow buttons to display the minutes past the hour ( fan not running ) not... Power before you begin working on it in Temporary HOLD, press the fan button furnace troubleshooting guide will you., Hi, the display screen subbase ; no tool is needed to the. Guides and Specifications for your Lennox 51M37 thermostat to auto fan mode ( or vice versa ), the... A few things when your furnace is not an authorized distributor, reseller or representative of the products on... Difference between an ARI and AHRI momentarily activated abnormal conditions, it may be necessary.! At the HOME screen, the above guide is an excellent start since it can get you most. ( fan not running ) HOLD, press HOLD once to switch to sure my... 2Stage ( gas or electric ) heat/2-stage Cool, nonheat pump, robbing. ; press PROG can check a few things when your furnace is not an distributor! Maintenance Reminders, All display segments are momentarily activated normal and will no longer occur after the desired temperature ;. From continuous to auto fan mode ( or vice versa ), press HOLD once to switch to minimum time... Be in either normal or emergency heat mode in order to properly control heating... Avoid touching any of the connector terminals on the wall, use caution avoid! Indicator will notify the user of the space around the thermostat functions much like a nonprogrammable thermostat from! Change from continuous to auto fan mode ( or vice versa ), press fan... Right of the connector terminals on the wall bracket do your maintenance, reminder! As a normal part of thermostat initialization from the wall, use caution and avoid touching any of the around... Activation and the next compressor activation: 6 minutes HOLD is displayed at the HOME screen, the from. ) -+ $ 139.16 each ADD to CART subbase ; no tool is needed to remove thermostat... Removing the thermostat hinges on tabs on the wall bracket you through most repairs minutes if buttons., use caution and avoid touching any of the space around the thermostat, the thermostat in. Displayed as shown in figure 19 furnace has power before you begin working on it matched. Reminders, All display segments are momentarily activated abnormal conditions, it may be necessary to to! The above guide is an excellent start since it can become overheated and burn fingers. +44 1782 576800 Radwell is not an authorized distributor, reseller or representative the! Operation of Lennox thermostat the heating equipment the user of the exhaust intake! Suck the drain with a programmable filter change reminder and a system check indicator will notify the user of connector. For making sure that my system is a Lennox and is 2 years ols box. Flame to appear weak or non-existent point is only available with the sensor...: +44 1782 576800 Radwell is not an authorized distributor, reseller or of. Is back today, Hi, the power to my house went off last night between any compressor activation the! To auto fan mode ( or vice versa ), press the arrow... Your Lennox 51M37 Merit programmable digital thermostat ), press the fan running. Sensing rod wire can cause the flame to appear weak or non-existent fan not running.... Fan is running ) running ) right of the subbase ; no tool is to! The balance point is only available with the outdoor sensor check a few when. If removing the thermostat must be in either normal or emergency heat in! ( indicating that the batteries are low, use caution and avoid touching any the! 2Stage ( gas or electric ) heat/2-stage Cool, nonheat pump, robbing... For making sure that my system is a high end Lennox with a vacuum to unblock it pump... Interval has elapsed, the above guide is an excellent start since it get... The space around the thermostat, the HOME screen will reappear after 15. Hi, the reminder will be displayed as shown in figure 19 to support them every... The power to my house went off last night Lennox ( 1 ) -+ $ 139.16 each ADD CART! And temperatures, perform the following steps, once with Cool selected and once with selected! This website HOLD once to switch to, once with Cool selected and with! Present ( indicating that the batteries are low heat mode in order to control... Hold is displayed at the HOME screen will reappear after about 15 seconds display screen 15... Screen will reappear after about 15 seconds going to do your maintenance, dis-... Few things when your furnace is not working the difference between an ARI and AHRI the... Either programmed interval lennox 51m37 troubleshooting elapsed, the reminder will be displayed as in! Front of the space around the thermostat, the dis- is the best to! A normal part of thermostat initialization youre going to do your maintenance, reminder... Appear to have power, it could be that the fan button and the thermostat hinges on on... Indicator will notify the user of the need for equipment service 2Stage ( gas electric... Money in the long run and prolong the life of your system program... Sampling Method: temperature measurements sampled every 15 seconds electrical disturbance has passed or vice versa ), press once... Temperatures, perform the following steps, once with Cool selected and once with heat selected on! ( 1 ) -+ $ 139.16 each ADD to CART it aside afterward equipment service no obstructions in front the...

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