708592-A FS4BI, PSA4BI 23 Seer SS AC ii.indd
Contents
1. o z tc o lt lt o INSTALLER 708592A Replaces 7085920 Printed in U S A Specifications and illustrations subject to change without notice and without incurring obligations lt N lo co o N2. HOLSINYSHL dW3LHOSIG HOLSINYSHL wi HOLO3NNOO ond di 3L HOOQ1nO 1109 Mov1a HOSN3S dW3L 841 YOLOW ova ONIH H31H3ANI WAOIHOL NHHL 1 Outdoor Unit Furnace Wiring Diagram MOTISA le SWL 9 1 OWI lt MOTISA OWI lt lt MOTISA 0000007 39NvHO ONDIHVIN H3dOHd AJLLN3GI OL dAVLS MHVIA SHLOLSTVNIAH3I JO NOIIV2O1 SSN LON 38V HOSS3HdWOO NO S TVNIAH3 L 11 06 06 a gt 6 prr z YaWYOSSNVEL 6 I UBIH Buy puebe1 Ed 9 1 Xlddns HOOGLNO MOLOVINOO 117 1 HOLOW LI Li i al HOLO3NNOO 318vO anavyo N3H
3. are open or shorted 8 Microprocessor Error Protection If abnormality of the CPU is detected the inverter will trip Abnormality may be caused by external electromagnetic noise 1 Communication Error Protection Inverter will trip if communication with the main controller fails NOTE Tripping of the Inverter is input into the controller memory up to 5 times occurrences Other System Protections Low Pressure Switch A low pressure switch is factory installed and located in the suction line internaltothe outdoorunit The switch is designed to protect the compressor from a loss of charge Under normal conditions the switch is closed If the suction pressure falls below 35 psig then the switch will open and its signal to the inverter will open The inverter will then send signal to the controller to turn unit off and displays fault message The switch will close again once the suction pressure increases to 60 psig High Pressure Switch high pressure switch is factory installed and located in the compressor discharge line internaltothe outdoor unit The switch is designed to de energize the unit when excessive pressure occurs due to abnormal conditions Under normal conditions the switch is closed If the discharge pressure rises above 575 psig then the switch will open and de energize the outdoor unit The switch will close again once the discharge pressure decreases below 460 psig Diagnostics and Trou
4. or rigid conduit is required Electrical conductors shall have minimum circuit ampacity in compli ance with the outdoor unit rating label The facility shall employ electrical circuit protection at a current rating no greater than that indicated on the outdoor unit rating label Disconnect Switch An electrically compatible disconnect switch must be within line of sight of the outdoor unit This switch shall be capable of electrically de energizing the outdoor unit 8 STARTUP AND CHECKOUT N WARNING Ensure electrical power to the unit is off prior to performing the following steps Failure to do so may cause personal injury or death Outdoor Unit Ensure the outdoor coil the inverter heat sink and the top of the unit are free from obstructions and debris and all equipment access control panel cover is in place Indoor Unit Consult the installation instruc tions of the indoor unit i e air handler indoor coil and furnace for details regarding installation Ensure wiring is secure and correct Air Filters Ensure air filters are clean and in place prior to operating the equipment Ensure that the unit has been properly and securely grounded and that power supply con nections have been made at both the facility power interface and outdoor unit ControllerThermostat Connectthe Outdoor section low voltage wiring to the Indoor section interface board Using standard 4 wires thermo stat ca
5. Charge Procedure for charging outdoor unit at out door temperatures above 65 F 1 With the system at nominal speed steady state measurethe liquid refrig erant pressure in psig at the service valve If the pressure measured in step 1 is less than the required liquid refrigerant pressure determined in step 4 then there is too little charge in the system Add refrigerant and repeat steps 1 through 3 until the system is correctly charged 2 Measure the liquid refrigerant tem If the pressure measured in step 1 is perature in Fahrenheit at the service greater than the required liquid refrig valve erant pressure determined in step 4 3 For the temperature measured de then there is too much charge in the termine the liquid refrigerant pressure system Remove refrigerant and repeat from the appropriate charging chart steps 1 through 3 until the system is below correctly charged Refrigerant Charging Charts For Cooling Mode of Operation 1 11 LI L I EE Remove refrigerant when above the curve A FETT 1 E 1 d LLLA DL L LA EL T ET LL LL L DL LL LA LL LL LL LA TO qug Lam LA DL gd d ld E 1 d LAE L DL DE E LL LL EL LA 0 eterna j NR 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 Liquid Temperature lH E D Q 5 x A Sg 5 S 2 2 3 and 4 iQ Drive
6. Charging Chart dun DO DO 4 18 31IHM M 8 3LIHM AVLSOWH3H I H3TIOHINOO 7 Yala 3SN ASION 2 MOTISA 7109 XS3 an NOILONS HOSN3S zTsTsT Te Te MOYLNOO NINA ic oc uaonaswvuL 3unssdud ovia Ha N33H9 12 L 3LIHM dal AlddNS YOOGLNO MOTA 5 Burm Asoyoey Burm HOLOVINOO 3LIHM MOTI3A nHHL HalHHVB8 101 1VGOIHOL NYHL Boe arene MOTISA xa ETIN Qquvog AOVAYALNI HOLSINH3HL 1109 3409 NYHL
7. M ONISNOH yona MOTISA orswmum HOLO3NNOO il aunssaud Levi hs eL n evi XlddNs AT OL NL H3MOd 1VQOIHOL O Coo CC 1 xa lana H31H3ANI HOLSINUSHL AY SOVJU3LINI dW3LHOSIC xona Li AT OL wi HOLSIWUIHL ENIH Lass dW31 f 0234 NYHL avo 100 Svl 9VL HOSN3S JVLSOWH3H L via MOTIBA H3TIOHLNOO 30v 18 MOTISA 841 00090 7 MOTIBA Outdoor Unit Air Handler Wiring Diagram PLEASE LEAVE THESE YOLOWSY tc Lu o I I I E z HOLOW qo ONDIBVIN AJILN3I OL 15 AHL OL STWNIWHAL 30 NOLIV2O 1 ISN Gay LON HOSS3HdWOO NO S IVNIWH3L
8. Outdoor Air Conditioner Installation Instructions IQ Drive variable Speed Ultra High SEER Split System These units have been designed and tested for capacity and efficiency in accordance with ARI standards These outdoor air conditioning units are designed for use exclusively with select NORDYNE G6 gas furnaces and select NORDYNE B5 air handlers equipped with dedicated matched indoor coils These instructions are primarily intended to assist qualified individuals experienced in the proper installation of Heating and Air Condition ing equipment including the iQ Drive System Local codes may require licensed installation service personnel for this type of equipment Read all instructions carefully before starting the installation IMPORTANT NOTE This equipment is one part of a total system designed for maximum efficiency adequate capacity and total comfort The system must function as intended Under no circumstances any part of the system may be substituted with other components THE iQ DRIVE SYSTEM The iQ Drive Air Conditioning System features fully variable speed compressor technology and variable speed indoor and outdoor motors The system provides variable cooling capacity as needed modulating over a five degree F temperature range operates near the nominal rated capacity at the thermostat set point and modulates as temperature difference between set point and room temperature changes The system may run at
9. Over heat of power Over heat Secure fan to motor module 4 Chockfan rotation shaft if screw is loose 5 Check IPM thermistor Out of range resistance at normal temperature 30 80k ohms 60 95 F 1 2 of 9 Replace thermistor 7 Display O H Replace 6 Reset power supply and run Table 1 Interpreting the Diagnostic Codes software Out of range 1 Check compressor resistance 0 3 1 ohms Replace compressor Over current of 2 Disconnect comp wires Display OC power module Replace inverter hardware Dis play E ROT Reset power supply and run Check wiring Replace inverter and run Display O C Over current Replace compressor 1 2 3 LV V Fault Possible Display of Code No Indication Cause inverter panel E ROT Abnormal rotation of Abnormal rotation Rotation error Communication error at indoor or outdoor Communication error DIP SW switching error System Parameter error EEPROM data failure CAU trip System Error CPU error CPU Error E 485 1 Check comp wiring connection TA4 TA5 TA6 2 Reset power supply and run 3 Replace inverter and run 1 Check connection of FM wiring CN3 2 Reset power supply and run 1 Check connection communication cable CN11 CONTROLLER 2 Check SW2 position 3 Reset power supply and run 4 Replace inverter and run 1 Check the setting of DSW tonnage 2 Reset the power supply
10. additional 18 capacity to provide rapid cooling and modulates down to minimum capacity if the room temperature reaches 2 degree F below set point then it turns off if room temperature drops more than 2 degree F below set point The system has a built in humidity control that will activate a humidifier equipment if supplied and reduces blower speed if indoor relative humidity is greater than set point default set at 60 The iQ Drive System consists of an outdoor unit indoor unit controller Thermostat and connecting lines 1 The Outdoor Unit The outdoor section consists of large heat exchanger surface Inverter motor Drive Brushless motor type rotary compressor and an integrated drive brushless fan motor coupled with a specially designed fan blade in addition to refrigerant valves housed in sturdy attractive chassis 2 The Indoor Unit The matched indoor coil may be a stand alone cased coil intended to be installed in NORDYNE G6 Model Gas Furnaces or may be part of a dedicated NORDYNE B5 Model Air Handler The indoor coil is equipped with Electronic Expansion Valve to precisely control refrigerant flow over the wide range of system capacity modulation For the stand alone dedicated cased coil in gas furnace a Furnace Blower Conversion Kit is required to allow the addition of required system components such as the Integrated Drive Brushless Indoor Blower Assembly Interface Board upgraded transformer and The Coil K
11. and run Reset power supply and run Reset power supply and run Reset power supply and run Reset power supply and run Finding and correction Secure loose wiring terminals Display E ROT Replace inverter Display E ROT Replace compressor Secure connection Display E Fan Replace inverter fan motor Verify and secure loose Connections Set SW2 to ON lower Display E 485 Replace inverter Display E 485 Replace controller or Indoor fan motor Set the DSW switch to match tonnage Display E DS Replace inverter Display E PR Replace inverter Display CAU Replace inverter Display E CT Replace inverter Display Err Replace inverter Table 1 Interpreting the Diagnostic Codes Continued Adjustment of Refrigerant Charge CAUTION Split system air conditioner equipment contains liquid and gaseous refrigerant under pressure Adjustment of refrigerant charge should only be done by qualified trained personnel thoroughly familiar with this type of equipment Under no circumstances should the homeowner attempt to install and or service this equipment Failure to comply with this warning could result in equipment damage personal injury or death NOTE The unit MUST be charged at nominal speed setting See Installer Settings Screen and select Charging Mode to run system at nominal speed System Charge Unit Tonnage R 410A Oz Table 2 System
12. arged with refrigerant charge adequate to operate the outdoor section with the indoor matched coil or air handler and 15 feet of refrigeration line NOTE DO NOT USE ANY PORTION OF THE REFRIGERANT CHARGE FOR PURGING OR LEAK TESTING Matching coils and Air Handlers are shipped with a small pressurized holding charge to keep contaminants out release the pressure read the indoor section installation instructions carefully Liquid and Suction Lines Refrigerant grade copper tubing should be used when installing the system Suction line tubing should be fully insulated Field Connections for Electrical Power Supply All wiring must comply with latest version of the National Electrical Code ANSI NFPA 70 and electrical conductors and circuit protection must in compliance with information listed on the outdoor unit data label 2 SAFETY CONSIDERATIONS Pressures within the System Split System Air Conditioning equipment contains liquid and gaseous refrigerant under pressure Installation and servicing of this equipment should be per formed by qualified trained personnel thoroughly familiar with this type of equipment Under no circumstances should the homeowner attempt to install and or service the equipment Labels Tags Precautions When working with this equipment follow all precautions in the literature on tags and on labels provided with the equipment Read and thoroughly understand the instruc
13. ble connect controller thermostat to the indoor section interface board Using extreme caution apply power to the sys tem and inspect the wiring for evidence of open shorted and or improperly wired circuits Controller Thermostat screen will be lit and calibration of indoor blower assembly will begin Initial screen will display indoor and outdoor temperatures and installer will be able to select functions and program all modes of operation NOTE The Controller Thermostat is designed to display information screens for use by the installer and homeowner At initial installation from OFF screen press the Up and Down buttons simultaneously for 5 10 seconds to display the Installer Settings Menu Screen This screen prompts the installer to input system configuration unit size furnace information accessories installed desired set tings in cooling and heating and humidity setting if different from default setting Installer may also input recommended service schedule and dealer contractor information for future use The controller screens display all pertinent system information in normal operation When necessary important messages may be se quenced along the top line to indicate conditions that need attention The controller is also designed to function as an important service and troubleshooting tool INSTALLER SETTINGS SCREEN 1 From Installer Settings select Model Configuration Screen will display si
14. bleshooting The controller Thermostat Unit is designed to provide service personnel with detailed descrip tion offaults that may cause system malfunction as well as messages indicating maintenance required Only qualified service personnel shall get into Service Information Menu screen to define the fault and make the appropriate correction SERVICE NEEDED Display The controller will change screen color to RED and displays SERVICE NEEDED System information and Fault detected in the Service needed menu screen Compressor error is detected it displays COMP ERROR followed by code number see below If Blower error is detected it displays BLOWER ERROR followed by code number see be low Other possible errors displayed are Too Hot Out Comp Overload Low Gas Pressure COMM Error 10 for indoor motor COMM Error 20 for outdoor motor COMM Error 30 for Furnace An Inverter Keypad diagnosis tool may be usedto help service the outdoor unit at site See column Display of Inverter panel for fault codes Table 1 describes possible errors and corrective measures Fault Possible Display of Finding and Code No Indication Cause inverter panel correction 1 Check thermistor resistance at Out of range normal temperature 60 95 F 10 25k ohms 1 2pin of CN7 Replace thermistor 2 Reset the power supply and Display E A1 run Replace inverter Outdoor temp E A 1 Check thermistor resistance a
15. d to provide a full scale of protection measures against conditions that may cause compressor and or other components failure When a protection function is triggered the Invertertrips and communicates the fault description to the controller which will display an error code orcomponentfaultstatus To release the trip correct the fault cause turn power off and then turn it on after few seconds Protection Functions 1 Low Voltage Protection If the voltage becomes lower than design minimum the output of inverter is interrupted 1 Over Voltage Protection Inverter will trip if voltage becomes higherthan design maximum 2 1 Over Current Protection Inverter will trip if the converter output current is exceeded due to load short circuit or ground fault 4 Over Heat Protection Inverter has a heat sink that rids it from excessive temperatures If temperature sensor exceeds 194 Fahrenheit Inverter will trip 1 Over Speed Protection Inverter willtrip if compressor speed is increased to 1 5 times the allowed rated speed 6 Abnormal Rotation Protection Inverter will trip if abnormal rotation of compressor is detected due to improper wiring LI Sensors Error Protection The out door air temperature sensor controls maximum compressor speed allowed for safe operation and the compressor discharge temperature sensor monitor maximum allowed compressortempera ture Inverter will trip ifthese sensors
16. elvin Controller Consult Installation Instructions provided with the Indoor Coil andthe Furnace Blower Conversion Kit for details For the dedicated Air Handler the matched coil and all required components are included Consult Installation Instructions provided with the Air Handler Unit for details 3 System Controller Thermostat The system controller is the master component that communicates with and controls the inverter driven system components The Inverter in the outdoor unit receives signals from compressor heat exchanger fan motor and outdoor ambient which are communicated to the controller via connections to the Indoor Interface Board The controller responds back with appropriate messages for each device operation command If no message is received for 10 seconds the device will stop The controller communicates with the indoor section via the Indoor Interface Board which is powered by 24 VAC from transformer in the furnace or air handler Transformer in the gas furnace MUST be replaced with the one supplied in the gas furnace blower conversion kit 1 GENERAL INFORMATION Read the following instructions completely before performing the installation N CAUTION This unit is charged with R 410A refrigerant DO NOT under any circumstances use any other refrigerant besides R 410A in this unit Use of another refrigerant will damage this unit Condensing Unit Section Unit is factory ch
17. input This PIN number will be needed for future system settings and adjust ments 9 OPERATING INSTRUCTIONS To Operate System in Cooling From MODE Screen select AUTO or COOL From Main Screen use the down arrow to set cooling temperature below room temperature Verify thatthe indoorfan calibration is performed and that system starts running To set system operation select MENU from the Main Screen and follow the instructions listed under previous section To Operate Furnace in Heating From MODE Screen select AUTO or HEAT From Main Screen usethe up arrow to set heating temperature above room temperature If system has been properly configured heating will start to operate To Shut Off the System The system is designed to continuously operate within a wide range of speeds to provide ultimate 6 comfort adequate matched to load capacity and maximum efficiency It will turn off automatically if required However if there is a need to shut off the system select OFF from Operating Mode Screen To Operate Indoor Blower Only Select FAN from MAIN menu screen then select ON for continuous blower operation or Programmed Fan for intermittent option NOTE The controller is programmed to start a Fan Calibration occurrence every week and every time the power is lost This function starts the indoor blower and calibrates air volume to motor speed 10 SYSTEM PROTECTION MEASURES The Inverter Driver is designe
18. n In addition it displays four options to select from TEMP Option Select this option to temporarily override program setting until next program interval is activated MODE Option Select this option to choose operating mode Cool Heat Auto or Off FAN Option Select this option to set desired indoor blower op eration mode Auto On or Programmed If On is selected blower will run at heating speed MENU Option Select MENU option to input the following Set Date amp Time Hold Temp info Program of Operation Fan Mode Settings and Security Lockout Note Fan and Mode may be selected from Main Screen directly 1 SETDATEANDTIME Follow prompted screens after each selection is made 2 HOLD Select from Vacation or Per manent 2A From Vacation Hold Screen set desired Hold temperatures for Heat and or Cool The following screen prompts the date and time entry for the desired hold Follow same steps for Permanent Hold 3 PROGRAM Select to set weekdays weekends every day or individual days programming The prompted screens allow four settings per day Input desired program and save 4 FAN Select from Auto On or Pro grammed Fan The Programmed Fan Settings allows fan to run as programmed in step 3 5 MODE Select from OFF AUTO or HEAT 6 SETTINGS Use this screen to scroll thro
19. ngle stage or multi stage 2 Select appropriate option Screen will display Input rate and temp rise for the installed furnace 3 Input data from furnace installed 4 Press select button following each selection or the up and down arrows to access displayed options Press Previous arrow to scroll between Screens 5 From Installer Settings select Acces sories option Screen will display ac cessories Input pertinent selections 6 Each accessory selected will be followed with additional screens for scheduling maintenance and service Input appropriate recommended ser vice schedules 7 From Installer Settings select Input Dealer Info option Screen will display pertinent selections Follow screen prompts and save Completed Dealer Info Screen 8 From Installer Settings select Hu midity Settings option Screen will display available selections Select from Humidify only Dehumidify only Both or None 9 From Installer Settings select Re store Factory Defaults if so desired 10 From Installer Settings select Charg ing Mode torun system at nominal set ting for proper charging conditions MAIN SCREEN The iQ Drive controller thermostat main screen displays system normal operating information It displays Outdoor and Indoor temperatures Set points in cooling and heating humidity and mode of operation for system and indoor fa
20. ocal building codes and the National Electrical Code Minimum Circuit Ampacity Electrical wir ing to the equipment must be compatible and in compliance with the minimum circuit ampacity listed on the outdoor unit data label Maximum Fuse Circuit Breaker Size Circuit protection for the outdoor unit must be compat ible with the maximum fuse circuit breaker size listed on the outdoor unit data label 4 INSTALLING THE OUTDOOR UNIT Slab Mount The site selected for a slab mount installation requires a stable foundation not subject to erosion The slab should be level and anchored if necessary prior to placing the unit on the slab Cantilever Mount The cantilever mount should be designed with adequate safety factor to support the weight of the unit and for loads subjected to the mount during operation Installed equipment should be adequately secured to the cantilever mount and leveled prior to operation of the equipment Roof Mount The method of mounting should be designed so as not to overload roof structures nor transmit noise to the interior of the structure Refrigerant and electrical lines should be routed through suitably waterproofed openings to pre vent leaking into structure 5 INSTALLING THE INDOOR UNIT The indoor section should be installed before proceeding with routing of the refrigerant piping Consult the installation instructions ofthe indoor unit i e air handler indoor coil and fu
21. r at main circuit box before wiring electrical power to the outdoor unit Failure to comply may cause severe personnel injury or death Wiring Diagram Awiring diagram schematic is located on the inside cover of the electrical box of the outdoor unit The installer should become familiar with the wiring diagram schematic before Co making any electrical connections to the outdoor unit Refer to wiring diagrams in this literature for wiring of system components Outdoor Unit Connections The outdoor unit requires both power and control circuit electrical connections Refer to the unit wiring diagram schematic for identification and location of out door field wiring interfaces Control Circuit Wiring The outdoor unit is designed to operate from a 24 VAC Class Il control circuit Control circuit wiring must comply with the latest version of the National Electrical Code ANSI NFPA 70 and with applicable local codes having jurisdiction Controller Thermostat Connections Con nections to controller unit should be made in accordance with the instructions supplied with unit and with the instructions supplied with the indoor equipment System requires the use of shielded cable Electrical Power Wiring Electrical power wiring shall comply with the current provisions of the National Electrical Code ANSI NFPA 70 and with applicable local codes having jurisdic tion Use of shielded metal lined sealtite
22. rnace for details regarding installation 6 CONNECTING REFRIGERANT TUBING N CAUTION This system utilizes R 41 0A refrigerant with PVE oil When servicing cover or seal openings to minimize the exposure of the refrigerant system to air and prevent accumulation of moisture and other contaminants General Once the outdoor and indoor unit placement has been determined route refrig erant tubing between them in accordance with sound installation practices Refrigerant tubing should be routed a manner that minimizes the length of tubing and the number of bends in the tubing Refrigerant tubing should be supported in a manner that the tubing will not vibrate or abrade during system operation Tubing should be kept clean of foreign debris during instal lation Refrigerant lines that exceed 75 ft in length and 20 ft in vertical elevation difference are not recommended The maximum inter connecting refrigerant line length is 100 feet and the maximum vertical elevation difference between the indoor and outdoor sections shall not exceed 50 feet Filter Dryer Installation A liquid line filter dryer is supplied with unit and must be installed in the liquid line ofthe system Ifthe installation replaces a system with a filter dryer already present in the liquid line the filter dryer must be replaced with the one supplied with the unit 7 MAKING ELECTRICAL CONNECTIONS N WARNING Turn off all electrical powe
23. t Out of range Discharge temp normal temperature 60 95 F 30 80k ohms Sensor error thermistor shorted 1 2pin CN8 Replace thermistor or disconnected 2 Reset the power supply Display E A2 and run Replace inverter 1 Check thermistor resistance at Out of range IPM temp thermistor normal temperature 60 95 F 30 80k ohms shorted or E A 1 2pin of CN9 Replace thermistor disconnected 2 Reset the power supply Display and run Replace inverter C thermistor shorted or disconnected AC possible power 1 Check supply voltage interruption Less than 187VAC Check power supply 2 Reset to the rated voltage Display E LV Replace and run inverter Under 253VAC possible strong wind 1 Check supply voltage Over voltage mon voltage of 2 Reset to the rated voltage Display O V Replace and run inverter fan motor speed run inverter 1 3 5 Equal or over 187V 2 Under voltage Low voltage of inverter Over 253VAC check power supply Out of range 1 Check compressor resistance 0 3 1 ohms Replace compressor Over current of 2 Disconnect comp wires sm power module O C C p Display E ROT Reset power supply and run Check wiring Replace inverter and run Display compressor Equal or above 125F 1 Check outdoor temperature unit not allowed to run 2 Check the screws of power Secure loose screws module 3 Check IPM heat sink fins Clear obstructions
24. tions provided with the equipment prior to performing the installation and operational checkout of the equipment Brazing Operations Installation of equipment requires brazing operations Safety codes must be complied with Safety equipment e g safety glasses work gloves fire extinguisher etc must be used when performing brazing operations N WARNING Ensure all electrical power to the unit is OFF prior to installing or servicing the equipment Failure to do so may cause personal injury or death 3 SITE PREPARATION Unpacking Equipment Remove the cardboard carton and user s manual from the equipment Take care not to damage the tubing connections when removing the carton Inspect for Damage Inspect the equipment for damage prior to installing the equipment at the job site Preferred Location of the Outdoor Unit Conducta survey of the job site to determine the optimum location for installing the outdoor unit Overhead obstructions poorly ventilated areas and areas subject to accumulation of debris should be avoided The outdoor unit must be installed such a manner that airflow through the chassis is not obstructed and that unit can be serviced Facility Prerequisites Electrical power must be supplied to the equipment Electrical power supplied must be adequate for proper operation of the equipment The system must be wired and provided with circuit protection in accordance with l
25. ugh options such as 6A SCREEN SETTINGS Set preferred Screen settings such as Temp scale Clock setting Language Contrast and Backlight On Time OFFSET Set temperature offsets humidity offset heat anticipator and heat differential CYCLES PER HOUR Set the maximum allowed heating cycles per hour AUTO CHANGEOVER Select Auto or Manual Change and select the Auto Changeover Time to inputdesiredtime interval between cooling and heating changeover PROGRAM SETTINGS Select Smart Recovery Events per Day and In termittent Fan 2B 6B 6C 6D 6E When Smart recovery is selected the controller adjusts operating span to match set program Events per day selection define number of daily air changes required based on residential or business choices When Intermittent Fan is selected the fan may be programmed to turn on for selected periods of time at selected time intervals if no call for cooling or heating is present Follow instructions of each option to set program 6F SERVICEINFORMATION This screen lists components status and faults if any Scroll up and down to obtain Fault Status showing active fault and last 5 faults Compressor Status Outdoor fan Status Indoor fan Status Tem perature Status and option to Clear Fault History 7 SECURITY LOCKOUT Select from Temp Adjust Only or Total Keypad Lockout options PIN number may be
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