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Table 13. Thermostat (HD Display) Parameters

Parameter

Description

Outdoor

Temperature

Source

Options are off, Internet (AccuWeather) or sensor. Default is Internet (AccuWeather).

Proximity Control

Options are ON and OFF. Default is OFF. Is used to wake-up the display from screen saver mode when motion near the HD Display is detected.

Reset thermostat

Resets the thermostat settings to factory default.

Screen Locked

Options are unlocked, partially locked and locked. Default is unlocked.

Screen Saver

Options are off, weather, power save and logo. Default is off.

NOTE:

When the user performs a picture upload from the settings > display > screen saver page, then on this screen it will only indicate that logo was selected. If no

picture has been uploaded, then the Lennox logo would be displayed.

Wide Setpoint

Options are ON and OFF. Default is OFF. This allows a wider low and high temperature. Normal range is 60 to 90°F (15.6 to 32.2°C) . When this parameter is set to ON,

the range is 40 to 100°F (4.4 to 37.8°C). This feature can also be set through the user interface setting screen. From the home screen go to menu > settings > heat &

cool (or it may be just heat or cool) > wider set-point range.

Table 14.

PureAir S

Parameters

Parameter

Description

Equipment

PureAir Filter

Dirty Filter

Detection and UV

Life Detection

Default: ON. Options are either ON or OFF.

This parameter turns on and off the filter life and UV lamp life reporting. When set to off, the control will continue to calculate the remaining filter life through

continuous sampling, but will not use filter tests to determine filter life. The control will:

•

Perform a filter calibration upon indication of a filter change regardless of the value of this parameter.

•

Perform a UVA lamp calibration upon indication of a lamp change regardless of the value of this parameter.

•

Calculate UVA lamp life remaining regardless of the value of this parameter.

Alarms 504 and 503 will not be sent while this parameter is set to “Off”

The Diagnostics screen on the thermostat will continue to show values for both filter life and UV lamp life regardless of the value of this parameter.

Max Air Filtered

between Tests

Default is 100%, Range is 50% to 100% Changes can be made in increments of 10%. This parameter:

•

Modifies the amount of air that is allowed to pass through the filter after a valid % life determination before a filter test is initiated.

•

Expressed as a percentage of the cubic feet of air that would pass through the filter if the fan operated at continuous fan CFM for 30 days.

UV lamp operation

detection

Default: ON. Options are either ON or OFF.

Filter Life

Provides percentage of remaining filter life. This is for display purposes only and cannot be changed.

Last replacement

date for filter

Date last filter reset was accomplished. This is for display purposes only and cannot be changed

Purifier life

Provides percentage of remaining purifier life. This is for display purposes only and cannot be changed

Last replacement

date for purifier

Date last purifier insert reset was accomplished. This is for display purposes only and cannot be changed

• Reset

PureAir S

will reset all

PureAir S

parameters back to factory defaults.

•

Reset purifier will reset it to 100%. This is usually accomplished after the purifier insert has been replaced.

•

Reset filter will reset it to 100%. This is usually accomplished after the air filter has been replaced.

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Содержание iComfort S30

Страница 1: ...507536 08 8 2020 Supersedes 507536 06 Copyright 2020 Lennox Industries Inc Dallas Texas USA iComfort S30 Ultra Smart Thermostat Installation and Setup Guide ...

Страница 2: ...creen 45 Displaying the Outdoor Sensor Temperature on the Home Screen 45 Displaying the Indoor Humidity on the Home Screen 45 iHarmony Zoning 45 PureAir S 45 Ventilation ERV HRV and Fresh Air Damper 45 Ventilation Rates 45 Energy Recovery Ventilator ERV 46 Heat Recovery Ventilator HRV 46 Fresh Air Damper 46 Zoning Application 46 Operation of Fresh Air Dampers with Environmental Overrides 46 Wiring...

Страница 3: ...d Storage Environment Electrical and Dimensions Operating temperature is 32 F to 104 F 0 to 40 C Shipping and storage temperature range is 4 F to 140 F 20 C to 60 C Operating humidity range is 10 to 90 non condensing at 104 F 40 C Storage humidity range is 5 to 95 non condensing at 104 F 40 C Smart Hub Power Input 24VAC 1AMP at 60Hz Smart Hub Power Output to HD Display 12VDC Dimensions H x W x D H...

Страница 4: ... alert which needs attention Amber Wi Fi Error Blinking amber LED indicates either Wi Fi is not connected no Wi Fi is within range or and Wi Fi hardware error Could also indicate intermittent Wi Fi connection Magenta Thermostat Error Blinking magenta LED indicates HD display not connected See Table 4 Communication Error Troubleshooting HD Display to smart hub Cyan HVAC Error Indoor unit is not con...

Страница 5: ...ng Recommendations Terminal Designation Description Thermostat Wiring Typical Wiring R 24VAC input 18AWG unshielded Indoor Unit Controller Outdoor Unit Smart Hub R i I C ACC1 ACC2 18 or 22AWG shielded 18AWG unshielded 18 or 22AWG shielded 18 or 22AWG shielded 18AWG unshielded 12V 12V A B HD Display Subbase COMMBUS A B 18 AWG Unshielded DO NOT connect shield wire Shield wire needs to be connected t...

Страница 6: ...d outdoor location away from direct sunlight or other heat sources usually on the north side of the building Ensure that water will neither collect on nor wash over the sensor Do not locate the sensor near driveways or similar heat absorbing masses which may reflect stored heat energy onto the sensor and send inaccurate information to the thermostat Locate the sensor away from attic and soffit ven...

Страница 7: ...ces as possible Recommended minimal distance is 15 feet 4 6 meters Unused wires Unused wires COMMBUS A B 12V 12V A B Single wire to bundle wire to indoor terminal C Single wire to indoor unit terminal C Unused wires Single wire to terminal C Indoor Unit Controller Outdoor Unit S30 Smart Hub HD Display Subbase R i I C ACC1 ACC2 Figure 3 Wire Termination in Communicating Systems Electrical Noise Typ...

Страница 8: ...ting Air Handler Unit COMMBUS A B HD Display Subbase B A Heat Pump Only Cut Y1 Y2 on board link for 2 stage outdoor units Non communicating Cut R O on board link for outdoor heat pump units Non communicating Figure 6 iComfort S30 Lennox Communicating Air Handler with 24VAC 1 or 2 Stage Heat Pump or Air Conditioner AB ODT FLOAT Switch DH DH Gh Rf Cf Gs Y W HVAC EQUIP DH C G R NC NO NC NO SPDT RELAY...

Страница 9: ...ONING SYSTEM To indoor unit To ComfortSync Zoning If unable to connect two wires to indoor unit terminals then pigtail wiring as exampled here DATS Up to three zone sensors are supported ACC1 ACC2 If TSTAT terminal is present DO NOT use Smart Hub COMMBUS A B Communicating Indoor Unit Communicating Outdoor Unit HD Display Subbase B A Figure 8 iComfort S30 Lennox Communicating Indoor and Outdoor Uni...

Страница 10: ...t of the HVAC system operation refer to UV light installation instruction Humidity Control Applications Lennox communicating thermostats can sense humdiity and controls both 24VAC H and 120VAC H outputs to cycle humdifier based on demand No other control or humidistat is required Optional outdoor air temperature sensor for use with humidifier if not already in the system for other function and are...

Страница 11: ...ure and indoor humidity are within the limits of the ventilation controller NOTE Set the communicating thermostat fan mode operation to Circulate and adjust duration to match control ventilation time duration 26L56 CURRENT SENSING RELAY 120VAC COIL RELAY 24VAC LVCS DAMPER TRANSFORMER VENTILATION DAMPER OUTDOOR TEMPERATURE SENSOR NEUTRAL EAC ACC 120VAC Smart Hub COMMBUS A B HD Display Subbase B A F...

Страница 12: ...OX COMMUNICATING THERMOSTAT OR DAMPER CONTROL MODULE CONVENTIONAL TERMINALS FLOAT SWITCH LENNOX COMMUNICATING INDOOR UNIT LENNOX COMMUNICATING INDOOR UNIT CONVENTIONAL OUTDOOR UNIT 1 OR 2 STAGE LENNOX COMMUNICATING FURNACE UNIT SLP99 EL296 and SL280 FOR FLOAT SWITCH OPERATION CUT R DS Figure 11 Installing iComfort S30 Communicating Indoor Unit Float Switch HEPA Bypass Filter Interlock Kit Humidifi...

Страница 13: ...C1 is always low stage for single and two stage ventilators LOW ON RED YEL GRN HI COM NO NC BLK HRV ERV Terminal Block COM CLOSE Fresh Air Damper 2 Wire Control Normally Open ACC1 ACC2 MAG MOUNT SMART HUB ACC1 ACC2 MAG MOUNT SMART HUB Wire jumper required between ACC 1 and R terminals COMMBUS A B COMMBUS A B Figure 13 iComfort S30 with Ventilation Fresh Air Damper ERV and HRV ...

Страница 14: ...here is a direct path to the approximate location of the home Wi Fi access point the signal is not blocked by the indoor unit or duct work for example Can be attached to a vertical surface such as a wall stud or roof truss web or to a horizontal surface such as a floor or ceiling joist or a roof rafter Smart hub antenna should be positioned such that it is roughly vertical no matter the orientatio...

Страница 15: ...small hole for thermostat wiring 3 8 10 mm Diameter Hole 5 Pull about three inches 75mm of thermostat wire through the opening and remove the outer thermostat wire jacket Seal wire hole in wall to prevent cold or hot air from affecting temperature sensor in display IMPORTANT Seal wire hole in wall to prevent cold or hot air from affecting temperature sensor in HD Display 6 Strip 1 4 6 mm insulatio...

Страница 16: ... portals once registration has been completed 5 Do not remove the label covering the HD Display screen until after power is applied to the system Lennox Communicating Air Handler Electric Heat Configuration Auto Detection During the system initial commissioning the electric heat strips are auto detected and configured for the system If electric heat is added after the system had already been confi...

Страница 17: ...eroconf a group of technologies that includes service discovery address assignment and host name resolution Mobile Device Operating System Requirements The iComfort Mobile Setup application is available for both IOS 6 0 and higher App Store and Android 4 1 and higher Google Play Establishing a Direct Wireless Connection to the Smart Hub IMPORTANT If the connection between the iComfort Mobile Setup...

Страница 18: ... 8 Start the iComfort Mobile Setup application and make sure you are connected to the correct smart hub by checking the serial number 9 Touch the remote in tab on the iComfort Mobile Setup application home screen 10 If the system has not been commissioned it will launch the commissioning screen If the system has already been commissioned it will go to dealer control center 11 Once servicing is com...

Страница 19: ...cation issue check all connections between the smart hub and HD Display subbase Also ensure HD Display is correctly mounted to subbase Apple HomeKit Wi Fi Accessory Configuration A pop up screen will appears providing instructions on how to connect the thermostat to the home Wi Fi network using an Apple IOS device If you wish to use this method to configure the unit for Wi Fi and Apple HomeKit the...

Страница 20: ...er Fresh Air Damper 1 or 2 Speed ERV energy recovery ventilation 2 or 2 Speed HRV heat recovery ventilation Once completed touch done which will display the equipment found screen There the additional non communicating equipment will now be displayed along with the iComfort equipment Once completed touch continue Reminders This screen allows you to set reminders as either disabled or 3 6 12 or 24 ...

Страница 21: ...ear and you can adjust the blower heating and cooling CFMs for that specifc zone Gray Blower CFM Red Heating CFM Blue Cooling CFM The green start button when selected will run the indoor blower at the designated CFM assigned When the green start button is selected the button when turn red and appear as exampled to the right Selected the button again and that will stop the blower and the icon will ...

Страница 22: ...reset all equipment and reconfigure Use to display system notifications Use to run test on system components Use to run diagnostics on system components Use to display system information Exit to Home screen To navigate back to the dealer control center touch on the Dave Lennox icon when available on the top left hand side of the screen To navigate back to the previous screen touch on the left arro...

Страница 23: ...g Max Dehumidification Overcooling Range is 0 10 Default is 4 Aux Heating Activation Threshold This is an adjustment to hasten or delay the aux heat activation This adjusts how far below the set point the temperature must fall with the HP at 100 before allowing electric heat to come on Range is 0 10 F 0 0 to 5 56 C with increments of 0 25 F 0 14 C The default setting is 2 5 F 0 83 C Definition Dep...

Страница 24: ...of three days to see if there is a pattern and compare it to the hottest day on record for that zip code before triggering an notification It must see a pattern before it will trigger the notification There may be a component or components that will require attention The sensitivity threshold selection options are OFF LOW MEDIUM and HIGH The default is HIGH The alert code notification is 65545 DAT...

Страница 25: ...he iComfort thermostat allows you to choose between 1 2 3 and 4 stages of heat Single stage heat first stage provides 100 of full capacity Two stage heat First stage provides 70 of full capacity 2nd stage provides 100 of full capacity Three stage heat First stage provides 60 of full capacity 2nd stage provides 80 of full capacity third stage provides 100 of full capacity Four stage heat First stag...

Страница 26: ...nd stage HP heating when the outdoor temperature goes below the jumper pin setting Options are off 40 F 4 C 45 F 7 C 50 F 10 C and 55 F 13 C Default is off Max Heat Setpoint The highest temperature setting that the heat set point can be set on the thermostat Default is 90 0F 32 33 C Range is 60 0 to 90 0 F 15 56 to 32 22 C Adjustable in increments of 1 F 0 56 C Max Humidification Setpoint This set...

Страница 27: ...ess than the minimum Heat Pump heating capacity of the outdoor unit The system will be cycled ON and OFF at the selected cycles per hour to maintain the settings of the iComfort thermostat This governs how many cycles per hour the system will try to run when it needs to run at less than minimum capacity Range is 4 to 10 cycles Default is 6 cycles Adjustments are in increments of 0 5 cycles Modulat...

Страница 28: ...ted by 1 0 F 0 56 C Single Setpoint Mode SSP Non Zoning System Only On the user screens this is referred to as Perfect Temp Temperature Options are enabled or disabled Default is disabled The Single Set Point SSP algorithm allows the user the set only one temperature set point value rather than one value for heating and a different value for cooling When zoning is present the following SSP setting...

Страница 29: ...and 6 F 3 36 C per hour for first stage compressor based heating or cooling With Smooth Set Back disabled the system will start a recovery at the programmed time Options are enabled or disabled Default is enabled The SSR set point calculation is as follows Current SSR CSP Current Program CSP Target Program CSP Current SSR HSP Current Program HSP Target Program HSP N N For New SSR HSP For New SSR C...

Страница 30: ...operate Modifying this setting here will also change the feature status on the user settings screen Normal This setting cools or heats the home to the desired temperature setting Feels Like is OFF Comfort This setting cools or heats the home to the desired temperature setting Feels Like is ON When set to ON other parameters are modified to optimal settings for this feature Those setting changes wi...

Страница 31: ...tion CFMs are capable of meeting the ASHRAE required ventilation volumes but the thermostat has no ability to control CFM from the HRV ERV The system first tries to satisfy the ventilation volume by only ventilating while conditioning is occurring Continuous fan is not considered conditioning The total volume of ventilation air is accumulated and stored to compare against the target hourly ventila...

Страница 32: ... temperature reported is 1 F less than the lock out setting when display units are Fahrenheit or is reported as 0 5 C less than lock out setting when the display units are Celsius Wall Insulation Options are poor average and good Default is average Zone 1 through 4 First Stage Differential Differential is the temperature between when first stage will cycle ON and cycle OFF Example Zone 1 HD Displa...

Страница 33: ...tions for delaying the first staging event even further since the starting point of the modulation gas heat in zoning is picked to be appropriate for the airflow being provided so this parameters allows an adjustment on top of the initial delay Range 3 0 8 0 minutes with a default 5 0 minutes Can be adjusted in 1 minute increments Zoning Minimum Zone Run Time Range is 90 to 600 seconds Default is ...

Страница 34: ...Differential Stg3 Differential Stg2 Differential Heating Heat Pump with Electric 3 Stage 2 compressor 1 backup OR 1 compressor 2 backup H C Stages Locked Enabled H C Stages Locked Disabled 3rd stage ON 1st stage ON 2nd stage ON 4th stage ON 3rd stage ON 1st stage ON 2nd stage ON 4th stage ON Stg4 Differential 2nd stage OFF 3rd stage OFF 4th stage OFF 5 0 P S 0 1 P S 5 1 P S S T N I O P SP SP SP 2 ...

Страница 35: ...nox Communicating Heat Pump Units When set to ON the system will always run at MAX DEFROST when accumulated compressor off time is longer than 30 minutes and ambient temperature is less than 35 F 1 6 C When ambient sensor temperature is higher than 40 F 4 5 C then defrost termination will be 90 F 32 C This option has two settings either ON or OFF Default is OFF Compressor Shift Delay ON OFF Single...

Страница 36: ...tat terminates the furnace heating demand Repeat steps 3 and 4 while defrost is active terminating any running furnace heat demand when the HP indicates that defrost is no longer active or any time the heat pump stops i e pressure switch opens mode switch changes etc NOTE The on times above assume the minimum furnace ignition time of 35 seconds Dehum Airflow Adjustment Adder Lennox Variable Capaci...

Страница 37: ...e compressor is turned OFF The range is 60 300 seconds Default is 300 seconds and with an incremental adjustment of 60 seconds When the system initiates a compressor short cycle delay the outdoor unit control s seven segment display will show the delay in minutes from 1 to 5 minutes The sequence is time minutes remaining and a dash and will repeat that cycle 5 4 3 2 and 1 until the count down is c...

Страница 38: ...ent Name A unique name can be assigned to this component Name can be up to 29 characters Name can consist of letters numbers special characters and spaces Heating Indoor Blower Off Delay Heating Indoor Blower OFF Delay Electric Heat only Blower runs at continuous air CFM setting during delay timing period The range is 0 10 seconds Default is 10 seconds with an incremental adjustment of 1 second He...

Страница 39: ...wer Off Delay The range is 60 180 seconds with a default setting base on equipment type match up Adjustment are increments of 10 seconds Heating Airflow Control Type Options for this setting are fixed CFM or fixed DAT discharge air temperature Default is dependent on equipment type match up Fixed CFM is selected as the Heating Airflow Control Type parameter default selection the circulator will op...

Страница 40: ... information on unit code language supported equipment type name control software revision control model number control serial number control hardware revision protocol revision number device product level 24VAC average power consumption 24VAC peak power consumption compatible devices list application code memory size micro controller part number max number of zones supported damper types number o...

Страница 41: ...trol will Perform a filter calibration upon indication of a filter change regardless of the value of this parameter Perform a UVA lamp calibration upon indication of a lamp change regardless of the value of this parameter Calculate UVA lamp life remaining regardless of the value of this parameter Alarms 504 and 503 will not be sent while this parameter is set to Off The Diagnostics screen on the t...

Страница 42: ...en the automatic testing is complete the system returns to the consumer home screen A updated installation report is generated and available in Lennox Pros under the Homeowners account Manual Test Depending on hardware present various tests are available By default all items to be tested are enabled Selecting a specific test will un check the item When a specific set of tests are completed the res...

Страница 43: ... changed Touch any item to change its contents A pop up screen will appear that will allow the information to be added or changed Information Required 1 Select desired language ENGLISH FRANÇAIS or ESPAÑOL 2 Select country region 3 Select time and date which includes time date time zone daylight savings time ON OFF 4 Temperature unit Fahrenheit or Celsius 5 Once completed press continue Home Addres...

Страница 44: ...ystem keeps using the over cooling set point as its operating cooling set point will not wait for the temperature to rise to the normal cooling set point to run again until the dehumidification demand is satisfied Table 16 Dehumidification Control Modes of Operations Mode of Operation Option Description Dehumidification Only Available only with Max and Climate IQ Auto Variable Capacity Outdoor Uni...

Страница 45: ... Lennox equipment Lennox communicating variable speed or variable capacity variable capacity indoor and two stage or variable capacity modulating outdoor units Lennox communicating variable speed indoor unit and communicating or non communicating conventional single stage outdoor unit two zones maximum supported Lennox communicating variable speed indoor unit and communicating or non communicating...

Страница 46: ...f ventilation air delivered use this number regardless of the actual fan speed Zoning Application When ventilation is demanded in zoned applications without conditioning calls the fresh air damper will open and the blower will run at the lowest set zone CFM referred to above Ventilation while a zone is being conditioned is serviced simply by opening the fresh air damper while the zone system condi...

Страница 47: ... installed communication devices 4 During commissioning you will end that process with the dealer control center screen From there touch equipment to modified any system or equipment settings 5 From the equipment list touch furnace From this furnace screen you will have access to the various airflow settings Set the system air volumes according to the needs of the home 6 When all CFM settings are ...

Страница 48: ...handler screen you will have access to the various airflow settings Set the system air volumes according to the needs of the home 7 When all CFM settings are complete touch the back arrow at the top left hand of the screen to return to the dealer control center 8 Touch tests to access the test section 9 Here you will have another opportunity to adjust blower circulation heating and cooling circula...

Страница 49: ...hermostat will check the system for installed communication devices 4 During commissioning you will arrive at the equipment found screen From there touch non communicating equipment to add non communicating equipment 5 From the add remove equipment screen touch either 1 Stage A C unit or 2 Stage A C unit 6 Touch done to return to the equipment found screen 7 Touch continue to proceed to the next s...

Страница 50: ...s continue to proceed 11 The dealer control center will appear Touch tests to access the test section 12 Here you will have another opportunity to adjust blower circulation heating and cooling circulation air flows Use the plus or minus buttons to adjust up or down the CFM settings Once adjustments are completed touch continue 13 Under the touch test to run screen you may un check any tests not re...

Страница 51: ... unit 6 Touch the done to return to theequipment foundscreen Touch continue to proceed to the next screen 7 Continue with the commissioning sequence When the set up airflow per zone screen appears you can adjust blower heating and cooling circulation air flows When done touch continue to proceed 8 The dealer control center will appear next Touch tests to access the test section 9 Here you will hav...

Страница 52: ... the password to access your home Wi Fi network NOTE If you wish to see the characters you are typing check show password The thermostat will support up to a 63 character password 7 Press join Whether connecting to a visible or hidden network if successful a check mark will appear above both the router and Internet icons HOME WI FI ROUTER INTERNET ACCESS SERVER CONNECTION E30 THERMOSTAT Figure 21 ...

Страница 53: ...e iComfort Setup app allows the installer to commission and service the system on any iPhone iPad and Android device Remotely turn the system on and off during setup Apple the Apple logo iPhone and iPad are trademarks of Apple Inc registered in the US and other countries Android is a trademark of Google Inc Use of this trademark is subject to Google permission Notifications Service and Alert Codes...

Страница 54: ...when a control has been replaced Reconfiguring the system should resolve this issue Sometimes Lennox communicating thermostat detects a new device or an existing device or a device on the system that is not communicating with the thermostat If this occurs an alert code 10 is activated and the thermostat sends a soft disable command to the offending device on the communications bus outdoor control ...

Страница 55: ... reconfiguring the system 11 Critical All communicating components Missing DEVICE2 The thermostat cannot find a previously installed system component Check all system components devices connection wiring Cycle system power Go to menu settings advanced settings view dealer control center equipment and press re configure system This will allow the system to auto detect any new Lennox communicating d...

Страница 56: ...ault The thermostat will not allow any heating operation to begin until it senses an indoor temperature lower than 90ºF Indoor temperature rose above 90ºF during a heating demand Heating operation is not allowed Check to ensure that heating equipment is not stuck ON reversing valve etc Check the accuracy of the thermostat temperature sensor Select cooling system mode to cool the indoor space below...

Страница 57: ...g the programmed unit capacity Remove power to thermostat before programming the unit control Go to applicable unit control and program the unit capacity manually see the unit installation instruction for configuration instructions Once configuration is complete then reconnect thermostat wires Go to menu settings advanced settings view dealer control center equipment and press reset all equipment ...

Страница 58: ...ing demand Recycle power Automatically clears when the system detects that the issue no longer exists 37 Critical HD Display Thermostat Cooling when not Requested DEVICE2 The system has been cooling for at least 15 minutes without a demand for cooling Run the system in diagnostic mode and verify that it matches actual equipment operation Go to menu settings advanced settings dealer control center ...

Страница 59: ...outdoor temperature is above the high balance point Selectable range is 60 to 240 minutes Go to menu settings advanced settings dealer control center equipment smart hub and located HP Heating Lockout Time to verify the lockout time setting Check air flow to the zones or zones Check discharge air temperatures Check calibration of room thermostat Outdoor unit When the heat pump could not get a zone...

Страница 60: ... Make sure that smart hub has proper software version for added accessory Example Pure Air S and or Apple Home Kit must have software version 3 4 or higher before it will connect to system properly If software is not updated in system it will cause system operation issues If zoning is installed and is wired directly from smart hub to iHarmony control then disconnect that wiring Run control wiring ...

Страница 61: ...tra cycle or miss a real cycle Voltage low enough to miss a cycle would generate an alert code 115 There are lots of events such as power utility substation switching that could occasionally make our power line frequency off by one count These are rare one time events and I don t know anything other than a generator with bad frequency that could cause problems long enough to cause this alert code ...

Страница 62: ...onnections Automatically clears after an unresponsive system component device responds to any inquiry 124 Critical All communicating components Active Subnet Controller Missing Active Component Communication Device Missing The thermostat has lost communication with a system component for more than three minutes System component has lost communication with the thermostat Check the wiring connection...

Страница 63: ...dler control NOTE This is applicable in non communicating applications only Automatically clears after the missing or incorrectly installed jumper is installed or corrected 131 Critical All communicating components Corrupted Control Parameters System component control parameters are corrupted Replace the system component control if heating or cooling is not available Go to menu settings advanced s...

Страница 64: ...wer Motor Unit Size Mismatch The unit size code for the indoor unit and the size of blower motor do not match Incorrect appliance unit size code selected Remove the thermostat from the system while applying power and reprogramming Check for proper configuring under unit size codes for furnace air handler in configuration guide or in installation instructions Automatically clears after the correct ...

Страница 65: ...ocked cold end heater box or condensate drain or drain strainers at outlet of cold end heater box Check for cracked hoses Check levelness of unit NOTE Check Service Manual and Service and Application Note H 13 07 Condensing Furnace Pressure Switch Troubleshooting for additional information Automatically clears after the issue is corrected 224 Critical Furnace Low Pressure Switch Stuck Closed The f...

Страница 66: ...leshooting for additional information Automatically clears after the issue is corrected 227 Moderate Furnace Low Pressure Switch Open in Run Mode The furnace low pressure switch is open while in run mode Check pressure inches w c of low pressure switch closing during a heat call Measure operating pressure inches w c Inspect vent for blockage and combustion air inducer for correct operation and res...

Страница 67: ...rnaces for additional information Automatically clears after a proper micro amp reading has been sensed 241 Critical Furnace Flame Out of Sequence Still Present Flame sensed without call for gas heating Perform the following Shut off gas Check for a gas valve leak Check for voltage to gas valve Replace the gas valve if needed Automatically clears when a heat call ends successfully 250 Moderate Fur...

Страница 68: ...cal Furnace WatchGuard Low Press Switch Open The furnace is in watchguard mode The furnace low pressure switch is open This is a five strike condition during a single demand Check pressure inches w c of low pressure switch closing during a heat call Measure operating pressure inches w c Check for blocked cold end heater box CEHB or condensate drain or drain strainers at outlet of CEHB and cracked ...

Страница 69: ...e and air flow Check for air blockage Automatically clears when a heat call ends successfully 275 Critical Furnace WatchGuard Flame Out of Seq No Flame The furnace flame is out of sequence The system will go into Watchguard mode Shut off gas Check for gas valve leak Check for high gas pressure Low supply air due to being plugged or restriction in system example dirty air filter or blockage in duct...

Страница 70: ...ower Motor Start Problem The indoor unit blower motor will not start The system will go into Watchguard mode Indoor blower motor unable to start This could be due to seized bearing stuck wheel and obstructions Replace motor motor module or wheel if assembly does not operate or meet performance standards Automatically clears after the indoor blower motor starts successfully 294 Critical Furnace Ind...

Страница 71: ...ure reading must be taken Automatically clears when a heating call finishes successfully 313 Minor Furnace air handler and outdoor unit Indoor Outdoor Unit Capacity Mismatch The indoor and outdoor unit capacities do not match This is a warning only alert code Check for proper system component configuring in installation instructions The system will operate but might not meet efficiency and capacit...

Страница 72: ...ally clears after reset and Y1 input sensed 348 Critical Indoor unit Relay Y2 Failure Sequence of Operation Communicating room thermostat send a Y1 or Y2 cooling or heat pump demand to the indoor control asking it to send a Y1 or Y2 output to the outdoor unit right The indoor control then looks to see if it sees 24 volts between the Y1 and common or Y2 and common on its terminals If it does not se...

Страница 73: ...ayed Alert Text Component or System Operational State and Troubleshooting Tip 351 Critical Air handler Electric Heat Stage 1 Problem There is an issue with the air handler s 1st 2nd 3rd 4th or 5th which is applicable stage electric heat Either the pilot relay contacts did not close or the relay coil in the electric heat section did not energize Possible heat section stage 1 failure NOTE Air handle...

Страница 74: ...sage shall be sent if voltage is not sensed on the DS terminal An alert code clearing message will be sent if 24VAC is sensed on DS terminal for the minimum of 10 seconds The monitoring of DS terminal will apply to both variable speed and constant torque controls Non Communicating Mode The furnace control has not received 24VAC power for two minutes or more on the DS terminal The system will not o...

Страница 75: ...compressor ran for more than 18 hours continuously while attempting to cool the home during a single demand or the system refrigerant pressure is low Alert code will not lockout system If the two stage outdoor unit has an outdoor control with flashing LED lights then the unit will run in low speed An outdoor control with a seven segment display the outdoor control will display alert code 401 but c...

Страница 76: ...ystem component Compressor Voltage Low The secondary voltage for the applicable system component has fallen below 18VAC This may be due to Secondary voltage is below 18VAC If this continues for 10 minutes the thermostat will turn off the applicable system component Automatically clears after voltage is detected as higher than 20VAC for two seconds or after power reset 410 Moderate Outdoor unit Ope...

Страница 77: ...ake sure coil is clean and airflow unobstructed in and out of condenser Check system operating pressures and compare to unit charging charts in installation manual Automatically clears after discharge temperature is less than 225ºF 415 Critical Outdoor unit Hi Discharge Line Temp Strikes Lockout The discharge line temperature has been consistently higher than the recommended upper limit of 279ºF D...

Страница 78: ...he terminal descriptions table to verify cable harness assembly wiring pin positions are correct Possible Solutions Check the resistance of the discharge sensor and compare to temperature resistance chart located in the applicable unit installation and service procedure If sensor resistance is out of range then replace the discharge line temperature sensor If discharge sensor wring leads are locat...

Страница 79: ...tuck reversing valve or clogged refrigerant filter Lennox Variable Capacity Outdoor Units Check to ensure that one of the wires from the top cap switch has not been disconnected from one of the TP terminals on the outdoor control Reconnect wire if disconnected Check superheat and sub cooling Automatically clears when error is corrected 423 40 Moderate Critical Variable capacity outdoor unit OD Inv...

Страница 80: ...higher occurs 10 times within an hour system will lockout critical condition Inverter LEDs will flash code 21 If the unit is a XP20 or XP25 variable capacity heat pump this error may occur entering or exiting a defrost cycle as the compressor restarts after the 30 second compressor shift delay If the unit was manufactured prior to 5817F and has frequent alert code 427 then compare the inverter par...

Страница 81: ...r is initiated If condition occurs 10 times within a 60 consecutive minutes system will lock out and display alert code 429 critical condition The outdoor control anti short cycle timer will time out and the unit will recycle the demand Inverter LEDs will flash code 23 Refer to the unit service documentation for detailed troubleshooting procedures Perform test function and verify inverter DC link ...

Страница 82: ...s 10 times within 60 consecutive minutes the system will lockout critical condition Inverter LEDs will flash code 26 Refer to the unit service documentation for detailed troubleshooting procedures Inverter flash code 26 The sequence is Red LED Two Flashes Green LED Six Flashes NOTE Inverter normal operations with no error code present is as follows Red LED is ON and Green LED is OFF Check refriger...

Страница 83: ... is greater than 480VDC If condition is detected outdoor unit will stop compressor and fan moderate condition Anti short cycle timer is initiated If condition occurs 10 times within 60 consecutive minutes the system will lockout critical condition Inverter LEDs will flash code 28 Refer to the unit service documentation for detailed troubleshooting procedures Inverter flash code 28 The sequence is ...

Страница 84: ...nverter reduces the compressor speed which is identified as a alert code 441 and the compressor speed in hz is below the minimum speed This will typically occur at start up The inverter automatically increases the compressor minimum speed below 45ºF in the heating mode and above 115ºF ensure the compressor capacity is sufficient for oil return If alert code 433 occurs and inverter does not indicat...

Страница 85: ...actor the Lennox outdoor control will attempt to communicate to the inverter for three minutes This process will be repeated three times in attempt to establish communication before locking out If the unit is locked out with a critical alert code 434 reset the system by cycling the outdoor unit power off and back on Then cycle the indoor power off 24vac to the Lennox outdoor control and then back ...

Страница 86: ... loose causing poor contact between these two components Tighten screws that hold the heat sink to the inverter control board NOTE Wait five minutes for all capacitors to discharge before checking screws Inverter LEDs will flash code 62 Refer to the unit service documentation for detailed troubleshooting procedures Inverter flash code 62 The sequence is Red LED Six Flashes Green LED Two Flashes Mo...

Страница 87: ...ompressor will resume operation If the error condition occurs 10 times within a 60 minute rolling time period the outdoor unit control will lock out operation of the outdoor unit critical condition Possible issue is system running at high pressures Check for high pressure trips or other alert codes in thermostat and outdoor control Inverter LEDs will flash code 73 Refer to the unit service documen...

Страница 88: ... screws This error code is primarily for informational purposes as the inverter controls the compressor speed to operate within design parameters Typically the inverter will make a minor speed reduction of 4 Hz approximately a 5 6 speed reduction for a brief period of time and to reduce the heat sink temperature and will then resume normal operation This may occur at high outdoor temperatures abov...

Страница 89: ...inverter within design parameters In most cases the alert code 441 notification does not require any additional service or diagnostic procedures The control sets indoor CFM and outdoor RPM to values according to demand percentage rather than the actual Hz Possible issue is system running at high pressures Check for high pressure trips or other alert codes in thermostat and outdoor control Inverter...

Страница 90: ...a violet UV sensor reports a fault for more than 5 minutes or UV sensor does not respond for more than 5 minutes Device will not perform any UV lamp life remaining calculations until fault has recovered Life remaining display shall indicate while fault exists Automatically clears 30 seconds after fault is recovered 502 Critical PureAir S UV Lamp Off The light is determined to be off when the last ...

Страница 91: ... the condition does not change the applicable alert code 542 543 544 or 545 is escalate by the Lennox communicating thermostat to critical System will continue to operate in central mode At the Lennox communicating thermostat only zone 1 screen will be available NOTE The Lennox communicating thermostat will display the alert code as Problem Zoning Control Email notifications will describe the issu...

Страница 92: ...is 90 F 32 22 C NOTE Notification is dependent on the thermostat having a active Wi Fi connection and the user account has been setup and includes a valid email address Automatically clears when condition is resolved 700 Critical HD Display Thermostat Comfort Sensor Temp Sensor Problem The internal temperature sensor of the HD Display is not operating correctly To resolve this issue try the follow...

Страница 93: ...ontrol Automatically clears once is detected for two seconds 65543 Info HD Display Thermostat Firmware updated When new firmware has been successfully updated to the thermostat Typically the thermostat will send a command to the unknown device and place it in a soft disable state The Lennox communicating control with the soft disable state will indicate so as follows On air handler furnace and out...

Страница 94: ... screen blank after initial power up The HD Display may take up to three minutes before anything appears on the screen due to a HD Display low battery condition HD Display battery charging only occurs when connected to the subbase System Checks YES NO 1 Is the Wi Fi connected 2 Can the homeowner access the consumer portal www myicomfort com from either a PC or tablet 3 Has the homeowner downloaded...

Страница 95: ...d LennoxPros Dealer Dashboard The dealer dashboard displays Dealer s iComfort thermostat installations in one convenient location It is accessible through the Service Dashboard at www LennoxPros com The thermostat can be accessible via the Dealer Dashboard only after the dealership s main phone number or company name is added during thermostat commissioning Service Dashboard Search Screen Customer...

Страница 96: ...ed list of all installed equipment for a particular system Menus are available for each Equipment Type for Technical Documents Warranty Lookup and Repair Parts Reports Tab View Performance Reports Installation Reports and Installation Update Reports Generate Monthly Performance Reports Generate Installation Update reports View Performance Reports Button displays a graphical view of the system perf...

Страница 97: ...97 ...

Страница 98: ...98 ...

Страница 99: ...dler 38 Furnace 39 Heat Pump 36 Smart Hub 25 Zoning Control 40 EvenHeat Discharge Temp 25 F Factory Reset Smart Hub 42 Thermostat 42 Fan Cycling 36 Freezing Alert Temperature 28 Fresh Air Damper 20 Fresh Air Dampers 45 G Gas Heat Control Mode SLP98 only 25 Gas Heating Activation Temp Difference 25 Group ID 25 H Heat Cool Stages Locked In 25 34 Heating Airflow Control Type 39 Heating Indoor Blower ...

Страница 100: ... Smooth Setback Recovery SSR 29 Soft Disable 55 Stage Delay Timers 29 30 Differentials 30 Subbase Installation 15 T Temperature Control Mode 30 32 Temperature Unit Selection 20 Temp Reading Calibration 30 Tests 42 Troubleshooting Wi Fi Connection 52 V Ventilation Control Mode 46 Control Mode Parameters 30 Control Wiring 13 Filter 20 Maintenance 20 Reminders 20 W Wall Insulation 32 Wide Setpoint 41...

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