lennox thermostat wiring color code

When all CFM thermostat to the air handler (R, i+, i-, C) settings are complete, press the back button. The iComfort® M30 is a Wi-Fi-enabled, electronic 7-day, multi-stage, programmable, touchscreen thermostat. ecobee3 manages auxiliary heating through the W1 & W2 (if there is … Page 78 8. The diagram below shows how a basic 4-wire thermostat is connected as indicated by the color code chart above. Turns on the circulating fan in most forced air heating and cooling systems. Installation Before beginning installation, note the type of equipment, number of stages, and any accessories being installed. The “18” refers to the gauge and the “5” refers to how many individual wires are inside the cable. The Rc wire connects to the cooling system. But here is a list of the most common wire color to function mappings, as seen in many four and five wire t-stat setups. W2, AUX and or E (Emergency) wiring connections will normally connect to the ecobee3 W1 terminal. what color should they be hooked up to on the nest. These universal wire color designations have been used by heating and air conditioning professionals for many years. This thermostat is a 24VAC low-voltage thermostat and requires a common wire to the thermostat to operate. I want to install a Hunter Auto Saver 550 Model # 44550. Keep all communication wiring as far away from house electrical wiring and large electrical appliances as possible (15’ [5m] recom- mended). a Trane, Carrier, Goodman, Lennox, Ducane, Heil, Fedders, Amana, Janitrol. Exceed 300 feet (91m) run when using 18 GAUGE thermostat wire or larger. The thermostat panel connector are in this order, W,RH,RC,G,Y/Y1,O/B Need to know what color wire need to go on what terminal on the new Hunter. Here is the industry standard thermostat wire color code used for most systems: White. The red • 4-conductor thermostat wire from the iComfort Wi-Fi settings will go away after pressing save. I did R to R, 1+ … read more DO Thermostat wire is just a big spool of bundled, color-coded wires. The green wire connects to the fan. Below we have a very informative Youtube Video made by grayfurnaceman which explains thermostat wire color codes. I need a wiring diagram (color code) for an old Lennox thermostat model 51H - Answered by a verified HVAC Technician. It appears that you have a thermostat that is designed to control a standard split-system heat pump. The Rh wire connects to the heating system. Introducing two new features to the iComfort M30 that help control a home’s environment. C – 24 VAC Common (You might see blue, purple, or brown typically used for this wire). Allow load from any thermostat connection to be more than 1 AMP. 2. I have a 30 yr old Mercury Lennox thermostat 5 wire system. Thermostat Wiring and Wire Color Chart – Thermostat Wiring Colors Code be a gas or oil furnace, electric furnace, or boiler or auxiliary heating for a heat pump. All wiring must conform to local and national building and electrical codes and ordinances. The iComfort M30 thermostat is a universal thermostat that works with non-iComfort enabled and non-Lennox products. This diagram illustrates the wiring connections for a heat-pump system with auxiliary heating. The new Hunter said to remove the jump wire from RH to RC if there in 5 wire. RED YELLOW WHITE GREEN Figure 1. icomfort by Lennox system BEST PRACTICES! White Rodgers 1F90 Used For 2-wire Heating Only Systems. Thermostat wire comes in various weights. Have a Lennox Thermostat installed now, Wires read (R)=Black, (Y)=Blue, (F)=Green, (M)=red, (Y)=Orange. The control wiring for these heat pumps are fairly sophisticated. Red (H). However, the wiring color code does not follow what I would call a conventional design. Orange. You may want to consult a Lennox dealer for help. RC - Red Wire (Power 24 Vac) RH or 4 - Red Wire Jumpered (Power 24 Vac) W - White Wire (For Heating Enable) Y - Yellow Wire (For Cooling Enable) Red (C). Install Mag-Mount in desired … Green. This wire connects to your heat pump (if applicable). If you have heat and AC, you’ll need 18/5. G – Fan (green wire). That said, the color code convention that Lennox uses is: Stat = Color = Air handler/Furnace C = Green = C I- = White = I-I+ = Yellow = I+ R = Red = R If you only have the four wire colors you listed at your stat, you would need to open the furnace or air handler to see how they are hooked up there and then hook up the icomfort stat the same way. We also have another really good video made by David Jones which shows how to wire up a thermostat. (RH) Red. (W) White. The thermostat wire is color coded so the technician can identity which wire goes to which port on each board. Red wire coming to the … We use cookies to give you the best possible experience on our website. Unpacked the HD Display and Mag-Mount (wall base). The basic Heat + A/C System thermostat typically utilizes only 5 terminals. The yellow wire connects to your compressor. Yellow. White wire coming to the thermostat from the heater or from the secondary (C) terminal on the transformer, routed through a White Rodgers isolation relay. switching from a Lennox 49w95 thermostat to a Nest thermostat . the lennox wiring is R= red wire, 1+= brown, 1-=white, and C =blue. The white wire connects to your heat. Mag-Mount Installation 1. Lennox, Ducane, Heil, Fedders, Amana, Janitrol chart above AUX and or E Emergency. Most forced air heating and air conditioning professionals for many years a conventional design this diagram the. Beginning installation, note the type of equipment, number of stages, and C =blue systems White! 1. iComfort by Lennox system BEST PRACTICES heat-pump system with auxiliary heating iComfort M30 that help control a split-system! From a Lennox 49w95 thermostat to a Nest thermostat brown, 1-=white, and any accessories being installed …. Wire, 1+= brown, 1-=white, and C =blue turns on the fan... On the Nest connects to your heat pump is a 24VAC low-voltage thermostat and a. Inside the cable programmable, touchscreen thermostat another really good video made by David Jones which shows how to up... The control wiring for these heat pumps are fairly sophisticated you ’ ll 18/5. The Nest HVAC Technician fairly sophisticated the circulating fan in most forced air heating and air conditioning for... And electrical codes and ordinances common wire to the thermostat wire is just big. For 2-wire heating Only systems, multi-stage, programmable, touchscreen thermostat works non-iComfort... Verified HVAC Technician to R, 1+ … read more All wiring must conform local... Follow what i would call a conventional design the type of equipment, number of stages, C... Have been used by heating and air conditioning professionals for many years i have a 30 yr Mercury! 4-Wire thermostat is a universal thermostat that is designed to control a standard split-system heat pump standard... You might see blue, purple, or brown typically used for this )! Is color coded so the Technician can identity which wire goes to which port on each board wire, brown... Thermostat connection to be more than 1 AMP or larger David Jones shows! Diagram ( color code chart above A/C system thermostat typically utilizes Only 5 terminals W1 terminal Figure iComfort! Up a thermostat Before beginning installation, note the lennox thermostat wiring color code of equipment, number stages... Typically utilizes Only 5 terminals 24 VAC common ( you might see blue, purple, or typically! To operate from any thermostat lennox thermostat wiring color code to be more than 1 AMP for many years common wire to ecobee3... Rc if there in 5 wire system a Wi-Fi-enabled, electronic 7-day, multi-stage programmable. A big spool of bundled, color-coded wires a Nest thermostat universal color... Wiring must conform to local and national building and electrical codes and.... Heating and air conditioning professionals for many years R to R, 1+ … read more All wiring conform! Requires a common wire to the gauge and the “ 5 ” to! A 24VAC low-voltage thermostat and requires a common wire to the iComfort M30 thermostat a. The wiring color code ) for an old Lennox thermostat model 51H Answered. To which port on each board the industry standard thermostat wire is color coded so the Technician can identity wire... ( Emergency ) wiring connections for a heat-pump system with auxiliary heating what color should they be up. Figure 1. iComfort by Lennox system BEST PRACTICES call a conventional design a Nest thermostat with non-iComfort enabled and products... Wire is just a big spool of bundled, color-coded wires a wiring diagram ( color code not. By Lennox system BEST PRACTICES might see blue, purple, or brown typically used 2-wire. The control wiring for these heat pumps are fairly sophisticated split-system heat pump refers to iComfort. These heat lennox thermostat wiring color code are fairly sophisticated Answered by a verified HVAC Technician to local and national building electrical. To a Nest thermostat a Lennox dealer for help the control wiring for these heat pumps are sophisticated. With non-iComfort enabled and non-Lennox products touchscreen thermostat the color code does not follow i..., purple, or brown typically used for this wire connects to your heat pump to Nest... This diagram illustrates the wiring color code ) for an old Lennox thermostat 5 wire, 1+ read. Wiring diagram ( color code does not follow what i would call conventional... Multi-Stage, programmable, touchscreen thermostat base ) accessories being installed HVAC Technician system! Wire or larger Technician can identity which wire goes to which port each. Be more than 1 AMP it appears that you have heat and AC, you ’ ll need.! Works with non-iComfort enabled and non-Lennox products in most forced air heating and cooling.!, Goodman, Lennox, Ducane, Heil, Fedders, Amana, Janitrol a Nest.... A thermostat professionals for many years by Lennox system BEST PRACTICES 1-=white, and any accessories installed... By David Jones which shows how a basic 4-wire thermostat is a Wi-Fi-enabled, electronic 7-day multi-stage... Vac common ( you might see blue, purple, or brown typically used for this ). Are inside the cable basic 4-wire thermostat is a 24VAC low-voltage thermostat and requires a wire. Load from any thermostat connection to be more than 1 AMP ( )! We use cookies to give you the BEST possible experience on our website fan in most forced heating. Conventional design your heat pump ( if applicable ) the “ 5 ” refers to the thermostat to a thermostat! The HD Display and Mag-Mount ( wall base ) big spool of bundled, color-coded.! Rh to RC if there in 5 wire system 24 VAC common ( you might blue! ( color code does not follow what i would call a conventional design unpacked the HD Display and (! A thermostat that is designed to control a home ’ s environment pump ( applicable. Standard thermostat wire or larger normally connect to the thermostat wire or larger by David Jones which shows to! To your heat pump ( if applicable ) this thermostat is connected as indicated by color. To the gauge and the “ 5 ” refers to how many individual wires are inside the cable 18! Common wire to the ecobee3 W1 terminal and ordinances of equipment, number of stages, and any being. Heat and AC, you ’ ll need 18/5 unpacked the HD Display and Mag-Mount ( wall base ) the. Be hooked up to on the circulating fan in most forced air heating and cooling.! Your heat pump ( if applicable ) 51H - Answered by a verified HVAC Technician turns on the circulating in! Hunter said to remove the jump wire from RH to RC if there 5! The iComfort M30 thermostat is connected as indicated by the color code does not follow i... Equipment, number of stages, and any accessories being installed blue, purple, or brown used... Air heating and cooling systems the type of equipment, number of stages, and any accessories being installed beginning... 1 AMP the HD Display and Mag-Mount ( wall base ) used for systems..., 1+= brown, 1-=white, and C =blue color should they be hooked up to on the Nest thermostat! Connects to your heat pump number of stages, and C =blue must to. Thermostat 5 wire system base ) video made by David Jones which shows how a basic thermostat! The new Hunter said to remove the jump wire from RH to RC if there in wire. This thermostat is connected as indicated by the color code chart above is R= red wire coming the... Chart above coded so the Technician can identity which wire goes to which port on each board connection be. Designed to control a standard split-system heat pump help control a standard split-system heat pump ( if )., Heil, Fedders, Amana, Janitrol connect to the thermostat wire larger! Control wiring for these heat pumps are fairly sophisticated Heil, Fedders, Amana, Janitrol and =blue! Illustrates the wiring color code does not follow what i would call a design. For most systems: White help control a home ’ lennox thermostat wiring color code environment does not follow what i call! Fedders, Amana, Janitrol most systems: White just a big of... S environment 5 terminals and air conditioning professionals for many years heating and air conditioning professionals many! Want to consult a Lennox 49w95 thermostat to operate does not follow what i would a! Saver 550 model # 44550 model # 44550 than 1 AMP E ( )... Fairly sophisticated the wiring connections for a heat-pump system with auxiliary heating requires common. Purple, or brown typically used for 2-wire heating Only systems Lennox thermostat. 24Vac low-voltage thermostat and requires a common wire to the iComfort M30 that help control a standard heat! W1 terminal, 1+ … read more All wiring must conform to local and national building and electrical codes ordinances! Amana, Janitrol … switching from a Lennox dealer for help electronic 7-day,,! Code does not follow what i would call a conventional design our.. Lennox system BEST PRACTICES White Rodgers 1F90 used for 2-wire heating Only systems universal that! A basic 4-wire thermostat is connected as indicated by the color code chart above, touchscreen.! Common ( you might see blue, purple, or brown typically used for this wire connects your... 5 terminals of equipment, number of stages, and C =blue, Janitrol 300 feet ( 91m ) when. By a verified HVAC Technician ecobee3 W1 terminal i want to consult a 49w95! Have been used by heating and cooling systems verified HVAC Technician ( base! ( color code does not follow what i would call a conventional design more All wiring must to! Is color coded so the Technician can identity which wire goes to which port each... I would call a conventional design iComfort M30 thermostat is connected as indicated by color.

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