Installation Manual
Contents
1. w 39NHO0JUIO uoduos q LA ped uaa 5 5 3 19 UNITARY DIAGNOSTIC CODES TROUBLESHOOTING INFORMATION 0 spuooes OE si junds 1 syed 0909 eoejdes pepeeu epoo pejeoipur eui 2VvAvZ se Ae dsip 5 037 sniejs onsouBeip Aq peJeej o uonesedo ojjuoo eq JosseJdujo9 YOOYD e SOUO IMS Se oAo euuou pepeeu ou ainsseid uBiu pue 9Annoesuoo y se J 440 Jaye 129 9 4 Bui 4 37049 jueseud jou sey 1032830Jd 10sseJduo5 pue LMHS Uoee uey 440 YOOYD 1ejsouueu 0 MdWo BuljoA5 Yous e JI NO 440 seuse ic 440 5591 SI So o O y 158 JO UNY eoe deJ eDesseui 49949 Jopoedeo 40 JBUOIPUOD 49949 Joopjno e 5110195 py JONHOJWOD2. uiejs s Buneoiunuuuo9 Ajuo seijddy si aBessow duing 72942 aq IM 1043 w s s JO YOEUD paeo Se 5 M e peJeus Aue 5110205 JEJSOWUJAU e 440 si jou seop peyeurunj uoo BAAS Jaye peAouJa4 Aew 10 0 e NO 4e od 5 ejejndog e pue uleys s epo pejeoipur y J40439 peo yesu KoeBo 10 Buneoiunuuoo Aejdsip 5 031 snmeis onsouBeip 5 e jo e Jno esi edA s UO Jede Joud 440 Jewod AA jeeu jeuonipuoo e 0 LAN ON 3A jou 330 usel4 jeeu 1euonipuoo 9 S9joN suonov 9 0294102 Ssosne a qissod 9 5 uondiiosag yiney LA pes MOJI A 7 Sapo G37 snyejs 2nsouBeiq
3. yun jou Jossaidwog ou epo 0 2945 e J0 09 01d 1440 5 Jeyje Je9j sesnj JosseJduuoo payie4 juesoJd eunsseJd uBiu pue eunsseJd pue sJexeoeJq pejoeuuoosip LINOMIO p uey Yo 440 Jewod uin YOBYD e SI S0 N3dO uedQ e JI NO 440 seuse j 6 440 pue jo 1no e20 1263009 duing 49949 JO 429U2 uo eBueJ si 8110195 JEJSOUNOU e 20S pepeeu 101 1189 se wo epoo pojeoipur eui Joyo e Buuiw Ae dsip 5 031 snieis onsouBeip syed pepeeu se JosseJdujoo yne 4 pejeJbeju eoejdes eoe de Spuooes UY sse uni 2045 e Joyoedeo uns Ane 4 ou SI sdu uee eq euin UNI 01 OVA pepeeu Joyoedeo J JJO Seull eAnnoesuoo 15 se und 10 4 juesoJd Jnoj 411
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9. 9 I224102 sosne a qissod Ajuo 5 yned LA TT q31 smeis 2nsouBeig JeJSOUMBYL 19 22 UNITARY DIAGNOSTIC CODES TROUBLESHOOTING INFORMATION Buum Ane uni pojreJ pepeeu se 1984100 Josseidwoo 04002 0 OVAPZ uni 499u2 e Jo 3uo9 peJeejo pepeeu Aj jedoud yne4 se jou Josseidwog 2945 e uedo si eo epoo eui Jeyje yney pepeeu uni J0sseJdujo2 uedo OU 440 e dsip 5 037 snmeis onsouBeip ed se SBUIPUIM yes Jo J019910Jd ueseJd 440 e uni uBnouu jueuno ON JON JON dwog e iieo NO NO NO 440 YO S Josseidwog sued 1284109 eoejdeJ eDeyoA sesu YOOYD e ep
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11. 3ne4 pepeeu pinbij uonoujses e ou 440 411 10129 0Jd edo se jsn pe ebieyo aBueyo 1774 ney jueseud JosseJdujuoo eAnnoesuoo 1 e 0j zoud 440 jueJeDujeJ jueJeDujeJ MOT e 10 Jals epis 430 ysel 440 unu Buoj A e s e2uo 9poo 40413 pues eDesseui eJoJjeq 440 KoeBe 72949 Jo Jemod Se 5 M 2942 51102925 SI ejep Jaye pe ouJeJ eq 321500290 wiJENHOJWOD e NO ejejndod uoo 92IAJ9S ulun 340438 81 5 IE JEISOWWOY e Jno 10 1294109 ay Aejdsip Jepouu SI ejep 8031 snmieis onsouBeip 10 esf ueeq e medal sey Aiowaw VLVG OW Seuse j seuse J eje1edo 0 01 440 ed A AJUGA uo e FD GI TVANI e 440 440 5 jeeu jeuonipuoo Jy e 9 341291109 sasnesy ajqissog
12. w NHOJWOD sued pejeutuinj UOD 1294109 eoejdey se 0 129 w NHOJWOD Jo43u09 0 OVAPZ Buum YO8UD e jou epoo pejeoipul BuioKo Aq peJeejo Buuiw Ke dsip 5 031 snieis onsouBeip eq yne4 eoe daJ oyoedeo Joyoedeo uns Ajne 4 eo ou jo3uoo epo uni x99u2 e Joyoedeo J 4JO pesojo 5 Joye Nes pepeeu JosseJdu1oo pojre 4 juesoJd ejnsseJd pue eunsseJd se uado si LMVLS Ieo go 440 Jewod YOOUD e pejs JosseJduJo 90 N3dO pes uado e 1 NO 440 9 440 uej Joopino pue pepeeu se aBessow duing 42949 Burm JO JOUORlIpuO2 49949 yo yp e S O49S 5 pepeeu 1984109 se JO 1129 5 9 w JONWOJWOD Jo43u09 0 OVAPZ YOBUD e epoo pejeoipul ou se 0 5 031 sniejs onsouBeip aq
13. JEJSOUMOYL wiIONMOJWOD 3 18 UNITARY DIAGNOSTIC CODES TROUBLESHOOTING INFORMATION Joopul Y99490 pepeeu se eoejdej edau eJnsseJd 0940 pepeeu se eoejdej edeJ Joopul Y90949 eBesseu dund 42949 10 Jeuonipuo 2949 11020 w J9N140JUJ02 uoo 29S JEJSOUUBY w 19 NHOJUlO7 ay Aejdsip 8 031 snjejs onsouBbelp S ued pepeeu 195 Joopu e jueseJd 1994100 eoe des se eoe dej redeJ s jejsouuau e Jo uoo JOOPU e 0 OVAPZ 10 YOOUD eul sdu Sew pepeeu pinbi ul uonoujses e jnoxoo1 INO OU 440 di4 uoyws eunsseJd e eda se jsn pe eBieuo 41400201 ND eunsseJg jueseud go o 440 MoT e 10 Sd1 NO ue JOOP NO pue e Bumes 2949 pepeeu s
14. m O ps HW3H BROWN i Se 29 Fg i l 1 tsi f BL Ehe BL Loc BL 2I TY 6 BLUE TEE pacc cs mem PUE 18 GA 5 WIRE x7 hatte SEE NOTE 4 1 cce tcc Lc HE ora OPTIONAL OUTDOOR THERMOSTAT CLOSE ON TEMPERATURE FALL 18 GA 7 WIRE NEEDED WHEN TWO OT ARE USED NOTES NOMENCLATURE COLOR CODES 1 OUTDOOR THERMOSTAT OT 1 SHOULD BE THE OT OUTDOOR THERMOSTAT OPTIONAL R RED FIRST TO CLOSE AND THE LAST TO OPEN EHR EMERGENCY HEAT RELAY OPTIONAL Y1 PURPLE Y2 YELLOW 2 CONNECT WHITE AND BROWN WIRES FROM AIR BR BROWN HANDLER TOGETHER IF OT 2 IS NOT USED ORANGE 3 REMOVE WIRE WHEN USING OUTDOOR THERMOSTAT A CREER BL BLUE 4 TERMINAL BLOCK MARKINGS ARE FOR AMANA AIR HANDLERS Non Communicating Thermostat with Low Voltage Wires to Heat Pump NOTE The usage of both OD thermostats may require field provided mounting hardware and weatherized enclosures Wiring is subject to change Always refer to the wiring diagram on the unit for the most up to date wiring 7 System START Up Ay caution POSSIBLE REFRIGERANT LEAK TO AVOID A POSSIBLE REFRIGERANT LEAK OPEN THE SERVICE VALVES UNTIL THE TOP OF THE STEM IS 1 8 FROM THE RETAINER NOTE Power must be supplied to the 18 SEER outdoor units containing ECM motors before the power is applied to the indoor unit Sending a low voltage signal without high voltage power present at the outdoor unit can cause malfunc
15. Temporarily install a thermometer on the liquid line at the liquid line service valve and 4 6 from the compressor on the suction line Ensure the thermometer makes adequate contact and is insulated for best possible readings Use liquid line temperature to determine sub cooling and vapor temperature to determine superheat Check subcooling and superheat Systems with TXV application should have a subcooling of 5 to 7 F and superheat of 7 to 9 F a If subcooling and superheat are low adjust TXV to 7 to 9 F superheat then check subcooling NOTE To adjust superheat turn the valve stem clock wise to increase and counter clockwise to decrease If subcooling is low and superheat is high add charge to raise subcooling to 5 to 7 F then check super heat If subcooling and superheat are high adjust TXV valve to 7 to 9 F superheat then check subcooling d If subcooling is high and superheat is low adjust TXV valve to 7 to 9 F superheat and remove charge to lower the subcooling to 5 to 7 F NOTE Do NOT adjust the charge based on suction pressure unless there is a gross undercharge 4 Disconnect manifold set installation is complete SUBCOOLING FORMULA SAT LIQUID TEMP LIQUID LINE TEMP NOTE Check the Schrader ports for leaks and tighten valve cores if necessary Install caps finger tight Heat Pump HEATING CYCLE The proper method of charging a heat pump in the heat mode is by weight with the
16. go 340 Jemod YO8YD Jesuepuoo pexoolg zo SdH UBIH NO 330 4 c uez 1 pue JosseJduuo pepeeu eoe doeJ Joopjno e 5 pepeeu 1991109 eoejdes se epoo pejeoipur eui Jo 3u09 01 Ke dsip s q37 snieis onsouBeip UB JOOP NO e pepeeu pesojo 5 SepoKo se ou ainsseid uiu pue eunssejd eAnnoesuoo p 440 GL uey 5591 pue Joye 4 Joopjno e jou juasaid uey 6 sdi Jjesuepuoo 17074 yne4 uns sdu 440 uee pue e Jesuepuoo pexoolg 20 HOIH apis yH e 1 NO 440 4 2 440 JosseJdujoo eAnnoesuoo Jno e 9 S93oN 941294102 e qissod 5 yned LA pes 121779 5 437 35 0 wIONHOJWOD 3
17. Bum ojuoo edau 11045 Bum 3sn4d ejye1edo 440 2 UI WOUS e NMO7g asnj uedo 440 440 seuse 4 G sje jeeu euonipuoo Jy eBesseui duing 29H 72942 8110195 3e s0uu8U w19N10JUO02 pejeurun PMS 1189 3 50uu8u wiJONYOJWOD Josues epoo eui ped peuous uedo eDuei jo no Josueg e dsip 5 031 snmeis onsouBeip 1994109 Josuag e 174 OU 440 uonoeuuo2 Josues uedQ e MOSN3S Josues ueseud Buneeu 440 Jewod Josues 2949 Josues peuous e v 109 1129 NO 440 Seuse J 2 ui oj s iej ease e dsip 08098 oy s e dsip pred peuous uedo jo jno JOSU e wi JONYOJWOD JOSUBG e 174 OU 440 epoo pejeoipui y 40sues MOSN3S Josues ueseud Ae dsip s q31 snmeis onsouBeip 440 Jewod 10595 x 29u2 Josues peuous e zv MIV JOOPINO J NO 440 uses ojuoo
18. additional charge adjustments for line size line length and other system components For best results on outdoor units with TXVs superheat should be 2 5 at 4 6 from the compressor Make final charge adjustments in the cooling cycle AppirioNAL NorEs 1 There are 4 LEDs on the PCB Refer to the Troubleshooting chart at the end of this manual for definitions of the LED status TERM dip switch is used for communications bus configuration Leave the settings to the factory default position LEARN push button is used in communication mode to support device recognition on start up As the communication system supports automatic identification of both indoor unit and outdoor unit this button is not used for a normal start up Press TEST push button during system Standby mode to turn on both the compressor and outdoor fan for five seconds Press RECALL push button to retrieve the six most recent faults The control must be in Standby Mode no thermostat inputs to use the feature Depress the push button for approximately two seconds and less than five seconds The LEDs will then display the six most recent faults beginning with the most recent faults beginning with the most recent fault and decrementing to the least recent fault The faults may be cleared by depressing the button for greater than five seconds Consecutively repeated faults are displayed a maximum of three times Refer to the fault code definitions at the
19. by taking the difference between a positive dc signal and a negative dc signal The positive dc signal is termed data 1 or 1 Data 1 is positive with respect to ground or common The negative dc signal is termed data 2 or 2 Data 2 is negative with respect to ground or com mon Data 1 should be approximately 2 8 volts dc Data 2 should be approximately 2 2 volts dc The voltage difference between data 1 and data 2 should be approximately 0 6 volts dc Verify that the bus TERM dipswitches are in the ON position OFF ON m m TERM TERM Selects the airflow trim amount applies to heat pump only Selects the indoor blower heat ON delay applies to heat pump only Selects the indoor blower heat OFF delay applies to heat pump only Selects the time interval between defrosts applies to heat pump only Selects the compressor off time after a reversing valve shift applies to heat pump only The ComfortNet system is a fully communicating system and thus constitutes a network Occasionally the need to troubleshoot the network may arise The integrated control module has some on board tools that may be used to trouble shoot the network These tools are red communications LED green receive Rx LED and learn button Red communications LED Indicates the status of the network The table below indicates the LED status and the corresponding potential problem Green receive LED Indicates network t
20. is noisy System runs blows cold air in heating Unit will not terminate defrost Unit will not defrost Low suction pressure Low head pressure High suction pressure High head pressure Test Method Remedy Test Voltage nspect Fuse Size amp Type Unbalanced Power 3PH Test Voltage Loose Connection nspect Connection Tighten Shorted or Broken Wires Open Fan Overload Test Circuits With Ohmmeter Test Continuity of Overload Faulty Thermostat Test Continuity of Thermostat amp Wiring Faulty Transformer Check Control Circuit with Voltmeter Shorted or Open Capacitor Internal Compressor Overload Open Test Capacitor Test Continuity of Overload Shorted or Grounded Compressor Test Motor Windings Compressor Stuck Use Test Cord Faulty Compressor Contactor Faulty Fan Relay Test Continuity of Coil amp Contacts Test Continuity of Coil And Contacts Open Control Circuit Test Control Circuit with Voltmeter Low Voltage Test Voltage Faulty Evap Fan Motor Shorted or Grounded Fan Motor Repair or Replace Test Motor Windings Improper Cooling Anticipator Check Resistance of Anticipator Shortage of Refrigerant Test For Leaks Add Refrigerant Restricted Liquid Line Open Element or Limit on Elec Heater Remove Restriction Replace Restricted Part Test Heater Element and Controls Dirty Air Filter Inspect Filter Clea
21. profile applies to air B CN RAN E Cool ON Delay 5 10 20 or 30 seconds default Selects the indoor blower ON delay Cool OFF Delay 30 60 90 or 120 seconds Selects the indoor blower OFF delay Dehumidification Select ON or OFF default is OFF Selecting OFF disables dehumidification DEHUM selecting ON enables dehumidification applies to air conditioner only Air CowpirioNER HEAT Pump ADVANCED FEATURES Menus 0 STATUS LL Submenuitem ______ Mode MODE Indication for Display Only not User Modifiable Displays the current air conditioner operating mode CFM CFM Displays the airflow for the current operating mode HEAT SET UP User Modifiable Options 10 to 10 in 2 increments Heat Airflow Trim HT TRM default is 096 HT ON seconds Heat OFF Delay 30 50 70 or 90 seconds default Defrost Interval 30 60 90 or 120 minutes default 0 5 15 or 30 seconds default is 5 Compressor Delay CMP DLY THERMOSTAT MENU If this heat pump is installed with a CT compatible furnace the system is recognized as a dual fuel system The balance point temperature should be set via the thermostat advanced menu Navigate to the THERMOSTAT menu Press the IN STALLER CONFIG key Navigate to the SETUP menu and press the INSTALLER CONFIG button Navigate to dF BAL PNT Adjust the dual fuel system balance point using the back forward arrows NETWORK TROUBLESHOOTING Communications is achieved
22. to the plug and replaced It is strongly recommended that multiple wires into a single terminal be twisted together prior to inserting into the plug connector Failure to do so may result in intermittent operation Typical 18 AWG thermostat wire may be used to wire the sys tem components However communications reliability may be improved by using a high quality shielded twisted pair cable for the data transmission lines In either case 150 feet is the maximum length of wire between indoor unit and outdoor unit or between indoor unit and thermostat Foun WinE INDOOR AND WIRING Typical wiring will consist of 4 wires between the indoor unit and outdoor unit and between the indoor unit and thermostat The required wires are a data lines 1 and 2 b thermostat R 24 hot and 24 common 96190 NEN CT Compatible Air Handler Furnace Modular Blower Integrated Control Module CT Compatible AC HP Integrated Control Module System Wiring Using Four Wires Two WiRE OutDoor INpooR WIRING Two wires only may be utilized between the indoor and outdoor units For this wiring scheme only the data lines 1 and 2 are required between the indoor and outdoor units A 40VA 208 230 VAC to 24 VAC transformer must be installed in the out door unit to provide 24 VAC power to the outdoor unit s elec tronic control The transformer is included with the CTK
23. will keep the indoor coil of your com fort system clean A dirty coil could cause poor operation and or severe equipment damage Your air filter or filters could be located in your furnace in a blower unit or in filter grilles in your ceiling or walls The installer of your air conditioner or heat pump can tell you where your filter s are and how to clean or replace them Check your filter s at least once a month When they are dirty replace or clean as required Disposable type filters should be replaced Reusable type filters may be cleaned You may want to ask your dealer about high efficiency filters High efficiency filters are available in both electronic and non electronic types These filters can do a better job of catching small airborne particles Compressor The compressor motor is hermetically sealed and does not require additional oiling Motors Indoor and outdoor fan motors are permanently lubricated and do not require additional oiling Clean Outside Coil Qualified Servicer Only WARNING HIGH VOLTAGE DISCONNECT ALL POWER BEFORE SERVICING MULTIPLE POWER SOURCES MAY BE PRESENT FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE PERSONAL INJURY OR DEATH Air must be able to flow through the outdoor unit of your com fort system Do not construct a fence near the unit or build a deck or patio over the unit without first discussing your plans with your dealer or other qualified servicer Restricte
24. 01 2vAve 2945 0 ase 5 Aq yne sea 1sn A pepeeu jou JosseJdujo e ynoyo07 ou JI 440 eunsseJd pue eunsseJd sod se uado si 4201 PNO ueseud 440 YOOYD e unu 10 5 4 e 40 NAY N3dO uny uedo NO NO Seuse J 440 pue 2949 JO JBUOHIPUOD 498YO 81 0105 JEJSOWIOU Syued uoo 1994109 0 1 0 2VAvC Buum pejeoipul y Aq pepeeu JosseJdujoo Ayne4 e 5 031 snieis onsouBeip se jeuuou Bum 42940 e 0 5 Jaye pepeeu jou e 440 eunsseuJd pue eunsseJd sede se uedo si noo Ju s sd Ho 440 YOOYD e unu Joss sdwog e 70 NR N3dO uny uedo NO 440 s yse 340 ue Joopino pue
25. CONDENSING UNIT HEAT PUMP INSTALLATION amp SERVICE REFERENCE SAFETY INSTRUCTIONS The following symbols and labels are used throughout this manual to indicate immediate or potential safety hazards Itis the owner s and installers responsibility to read and comply with all safety information and instructions accompanying these symbols Failure to heed safety information increases the risk of personal injury property damage and or product damage Warnine HIGH VOLTAGE DISCONNECT ALL POWER BEFORE SERVICING e MULTIPLE POWER SOURCES MAY BE PRESENT FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE PERSONAL INJURY OR DEATH d warnine ONLY INDIVIDUALS MEETING THE REQUIREMENTS OF AN ENTRY LEVEL TECHNICIAN AT A MINIMUM AS SPECIFIED BY THE AIR CONDITIONING HEATING AND REFRIGERATION INSTITUTE AHRI MAY USE THIS INFORMATION ATTEMPTING TO INSTALL OR REPAIR THIS UNIT WITHOUT SUCH BACKGROUND MAY RESULT IN PRODUCT DAMAGE PERSONAL INJURY OR DEATH d caution SCROLL EQUIPPED UNITS SHOULD NEVER BE USED TO EVACUATE THE AIR CONDITIONING SYSTEM VACUUMS THIS LOW CAN CAUSE INTERNAL ELECTRICAL ARCING RESULTING IN A DAMAGED OR FAILED COMPRESSOR IMPORTANT NOTE THE OWNER REGARDING PRODUCT WARRANTY Your warranty certificate is supplied as a separate document with the unit installed by your contractor Read the limited war ranty certificate carefully to determine what is and is not cov ered
26. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE PERSONAL INJURY OR DEATH SYSTEM COMPOSITE DIAGRAM HEAT PUMPS CLOSE ON TEMPERATURE FALL 10 kW amp BELOW 18 GA 7 WIRE TYP H P HEAT PUMP ROOM THERMOSTAT GOOG 209 999 COO INDQOR UNIT B R L 9 T A TT PE R HRH ee E l 1 pod y ei GREEN T f 1 1 BR SEE WHITE E E 1 1 1 Cheer ee o zr iata mee ae ar ee PIER Tm 1 U EN es BL fi gue b A 2 1 d SEE NOTE 4 OPTIONAL OUTDOOR THERMOSTAT 18 GA 6 WIRE NEEDED WHEN OT IS USED SYSTEM COMPOSITE DIAGRAM HEAT PUMPS ABOVE 10 kW 18 GA 7 WIRE TYP H P HEAT PUMP ROOM THERMOSTAT INDOOR UNIT 200000 W P Y L H R u E E NE 2 E in T y T A D SH EA N C nf HR RED L de r E E Wo dog cil 1 Y1 4 A yy as I PESCE NETS DE DRE T p norte IBR 4 W wal WHITE ees 1 p a L7 sg 18 ic pog L4 NOTER I 1 10 20 1 BRI l 1
27. GAS WILL BE PRODUCED A warnine TO AVOID POSSIBLE EXPLOSION NEVER APPLY FLAME OR STEAM TO REFRIGERANT CYLINDER IF YOU MUST HEAT A CYLINDER FOR FASTER CHARGING PARTIALLY IMMERSE IT IN WARM WATER NEVER FILL A CYLINDER MORE THAN 80 FULL OF LIQUID REFRIGERANT NEVER ADD ANYTHING OTHER THAN R 22 TO AN R 22 CYLINDER OR R 410A To AN R 410A CYLINDER THE SERVICE EQUIPMENT USED MUST BE LISTED OR CERTIFIED FOR THE TYPE OF REFRIGERANT USED STORE CYLINDERS IN A COOL DRY PLACE NEVER USEA CYLINDER AS A PLATFORM ORA ROLLER A warnine TO AVOID POSSIBLE EXPLOSION USE ONLY RETURNABLE NOT DISPOSABLE SERVICE CYLINDERS WHEN REMOVING REFRIGERANT FROM A SYSTEM ENSURE THE CYLINDER IS FREE OF DAMAGE WHICH COULD LEAD TO A LEAK OR EXPLOSION ENSURE THE HYDROSTATIC TEST DATE DOES NOTEXCEED 5 YEARS ENSURE THE PRESSURE RATING MEETS OR EXCEEDS 400 PSIG WHEN IN DOUBT DO NOT USE CYLINDER REFRIGERANT LINES Ay caution THE COMPRESSOR POE OIL FOR R 410A UNITS IS EXTREMELY SUSCEPTIBLE TO MOISTURE ABSORPTION AND COULD CAUSE COMPRESSOR FAILURE DO NOT LEAVE SYSTEM OPEN TO ATMOSPHERE ANY LONGER THAN NECESSARY FOR INSTALLATION Use only refrigerant grade dehydrated and sealed copper tub ing to connect the condensing unit with the indoor evaporator After cutting the tubing install plugs to keep refrigerant tubing clean and dry prior to and during installation Tubing should always be cut square keepi
28. HE PRESSURE RELIEF VALVE MUST BE SET TO OPEN AT NO MORE THAN 150 PSIG Pressure test the system using dry nitrogen and soapy water to locate leaks If you wish to use a leak detector charge the system to 10 psi using the appropriate refrigerant then use nitrogen to finish charging the system to working pressure then apply the detector to suspect areas If leaks are found repair them After repair repeat the pressure test If no leaks exist proceed to system evacuation System EVACUATION Condensing unit liquid and suction valves are closed to contain the charge within the unit The unit is shipped with the valve stems closed and caps installed Do not open valves until the system is evacuated warnine REFRIGERANT UNDER PRESSURE FAILURE TO FOLLOW PROPER PROCEDURES MAY CAUSE PROPERTY DAMAGE PERSONAL INJURY OR DEATH NOTE Scroll compressors should never be used to evacuate or pump down a heat pump or air conditioning system Ay caution PROLONGED OPERATION AT SUCTION PRESSURES LESS THAN 20 PSIG FOR MORE THAN 5 SECONDS WILL RESULT IN OVERHEATING OF THE SCROLLS AND PERMANENT DAMAGE TO THE SCROLL TIPS DRIVE BEARINGS AND INTERNAL SEAL 1 Connect the vacuum pump with 250 micron capability to the service valves 2 Evacuate the system to 250 microns or less using suction and liquid service valves Using both valves is necessary as some compressors create a mechanical seal separating the sides of the system 3 C
29. HE PROBLEM CORRECTED YOU RUN THE RISK OF SEVERE EQUIPMENT DAMAGE 24 Check the electrical panel for tripped circuit breakers or failed fuses Reset the circuit breakers or replace fuses as necessary Check the disconnect switch near the indoor furnace or blower to confirm that it is closed Check for obstructions on the outdoor unit Confirm that it has not been covered on the sides or the top Remove any obstruction that can be safely removed If the unit is covered with dirt or debris call a qualified servicer to clean it Check for blockage of the indoor air inlets and outlets Confirm that they are open and have not been blocked by objects rugs curtains or furniture Check the filter If it is dirty clean or replace it Listen for any unusual noise s other than normal operating noise that might be coming from the outdoor unit If you hear unusual noise s coming from the unit call a qualified servicer
30. O kit See kit instructions for mounting and wiring instructions Four wires are required between the indoor unit and thermostat NOTE Use of the CTKO transformer is recommended if installing a dual fuel system Failure to use the transformer in the outdoor unit could result in over loading of the furnace transformer CTKO Thermostat CT Compatible Air Handler Furnace Modular Blower Integrated Control Module 40VA Transformer included in CTKO kit 208 230 VAC System Wiring using Two Wires between Furnace and Four Wires between Furnace and Thermostat CT Compatible AC HP Integrated Control Module System ADVANCED FEATURES The ComfortNet system permits access to additional system information advanced setup features and advanced diagnos tic troubleshooting features These advanced features are or ganized into a menu structure The menus are accessed and navigated as described below ACCESSING AND NAVIGATING THE ADVANCED FEATURES MENUS The advanced system features are accessed using the ComfortNet thermostat These advanced features are ac cessed as follows On the CT thermostat Home Screen Display touch the Menu key to display additional key choices Touch and hold the Installer Config key for approximately 3 seconds to enter the Thermostat Options Configuration menu Touch and hold the Installer Config key again for approximately 3 seconds to enter
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32. and keep the warranty certificate in a safe place If you are unable to locate the warranty certificate please contact your installing contractor or contact customer service 877 254 4729 to obtain a copy To receive the Lifetime Unit Replacement Limited Warranty good for as long as you own your home and the 10 Year Parts Limited Warranty for Amana branded products online registration must be completed within 60 days of installation Online registration is not required in California or Quebec Amana is a registered trademark of Maytag Corporation or its related companies and is used under license to Goodman Company L P Houston TX All rights reserved 2009 2013 Goodman Manufacturing Company L P 5151 San Felipe Suite 500 Houston TX 77056 www goodmanmfg com or www amana hac com P N 10 348K Date August 2013 To receive the Lifetime Compressor Limited Warranty good for as long as you own your home the 10 Year Unit Replacement Limited Warranty and the 10 Year Parts Limited Warranty for Goodman branded products online registration must be com pleted within 60 days of installation Online registration is not required in California or Quebec Complete warranty details available from your local dealer or for Goodman brand products visit www goodmanmfg com and for Amana brand products visit www amana hac com IMPORTANT To register your Goodman brand unit go to www goodmanmfg com and click Warranty Registrat
33. ce and overcurrent protec tion Wires should be sized to limit voltage drop to 2 max from the main breaker or fuse panel to the condensing unit Consult the NEC CEC and all local codes to determine the correct wire gauge and length Local codes often require a disconnect switch located near the unit do not install the switch on the unit Refer to the installa tion instructions supplied with the indoor furnace air handler for specific wiring connections and indoor unit configuration Like wise consult the instructions packaged with the thermostat for mounting and location information OVERCURRENT PROTECTION The following overcurrent protection devices are approved for use Time delay fuses e HACR type circuit breakers These devices have sufficient time delay to permit the motor compressor to start and accelerate its load HIGH VOLTAGE CONNECTIONS Route power supply and ground wires through the high voltage port and terminate in accordance with the wiring diagram pro vided inside the control panel cover Low VOLTAGE CONNECTIONS Condensing unit control wiring requires a nominal 24 VAC 6 VAC 60 Hz minimum 25 VA service from either the indoor or outdoor transformer packaged with the optional communi cating thermostat kit Low voltage wiring for the condensing units depends on the thermostat used The unitis designed to work as part of a fully communicating HVAC system utilizing the ComfortNet CTKO thermo
34. d airflow could lead to poor operation and or severe equipment damage Likewise it is important to keep the outdoor coil clean Dirt leaves or debris could also restrict the airflow If cleaning of the outdoor coil becomes necessary hire a qualified servicer Inexperienced people could easily puncture the tubing in the coil Even a small hole in the tubing could eventually cause a large loss of refrigerant Loss of refrigerant can cause poor operation and or severe equipment damage Do not use a condensing unit cover to protect the outdoor unit during the winter unless you first discuss it with your dealer Any cover used must include breathable fabric to avoid mois ture buildup CALLING Your SERVICER Check the thermostat to confirm that it is properly set Wait 15 minutes Some devices in the outdoor unit or in programmable thermostats will prevent compressor operation for awhile and then reset automatically Also some power companies will install devices which shut off air conditioners for several minutes on hot days If you wait several minutes the unit may begin operation on its own AX CAUTION TO AVOID THE RISK OF EQUIPMENT DAMAGE OR FIRE INSTALL THE SAME AMPERAGE BREAKER OR FUSE AS YOU ARE REPLACING IF THE CIRCUIT BREAKER OR FUSE SHOULD OPEN AGAIN WITHIN THIRTY DAYS CONTACT A QUALIFIED SERVICER TO CORRECT THE PROBLEM IF YOU REPEATEDLY RESET THE BREAKER OR REPLACE THE FUSE WITHOUT HAVING T
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36. e indoor unit outdoor unit and thermo stat comprising a ComfortNet system communicate digitally with one another It is now a two way communications path The thermostat still sends commands to the indoor and out door units However the thermostat may also request and receive information from both the indoor and outdoor units This information may be displayed on the CT thermostat The in door and outdoor units also interact with one another The outdoor unit may send commands to or request information from the indoor unit This two way digital communications between the thermostat and subsystems indoor outdoor unit and between subsystems is the key to unlocking the benefits and features of the ComfortNet system Two way digital communications is accomplished using only two wires The thermostat and subsystem controls are pow ered with 24 VAC Thus a maximum of 4 wires between the equipment and thermostat is all that is required to operate the system AiRFLOW CONSIDERATION Airflow demands are managed differently in a fully communi cating system than they are in a legacy wired system The System operating mode as determined by the thermostat determines which unit calculates the system airflow demand If the indoor unit is responsible for determining the airflow de mand it calculates the demand and sends it to the ECM motor If the outdoor unit or thermostat is responsible for determining the demand it calculates the demand and
37. en revert to the Fault Screen Some parameters being displayed switch between the item name and the item value Touch the Hold key to momentarily stop the display from switching To exit an equipment submenu and revert back to the equip ment menus touch the Menu key Touch Menu again to re vert back to the Thermostat Options Menu Touch the Run Schedule key to step out of all menus and back to the CT thermostat Home Screen Display If this heat pump is installed with a CT compatible air handler modular blower the system is recognized as a heat pump system The electric heat disabled temperature and heat pump disabled temperature must be set via the thermostat advanced menu Navigate to the THERMOSTAT menu Press the IN STALLER CONFIG key Navigate to the SETUP menu and press the INSTALLER CONFIG button Navigate to AUX HT LOCKOUT Adjust the electric heat disabled temperature to the desired setting using the back forward arrows Navigate to HP BAL PNT Adjust the heat pump disabled temperature to the desired setting using the back forward arrows DIAGNosTics Accessing the air conditioner heat pump s diagnostics menu provides ready access to the last six faults detected by the air conditioner heat pump Faults are stored most recent to least recent Any consecutively repeated fault is stored a maximum of three times Example The power supply to the air condi tioner heat pump is continuously below 187 VAC The control will only st
38. end of this manual for more details A forced defrost can be initiated by pressing TEST and RECALL push buttons simultaneously for more than 1 second with a valid call for heat The forced defrost can be terminated by A 10 minute lapse in time A coil temperature rise above 75 or By pressing the two buttons again for more than 1 second SysrEM OVERVIEW The ComfortNet system or CT system is a system that in cludes a ComfortNet compatible air handler furnace modular blower and air conditioner or heat pump with a CTKO thermo stat Any other system configurations are considered invalid ComfortNet systems and must be connected as a traditional or legacy system The following table compares the valid CT systems CT compatible Air Conditioner CT compatible Heat Pump CT compatible Air Handler Fumace Modular Blower Full CT system benefits amp features CT compatible Air Handler Fumace Modular Blower Full CT system benefits amp features A ComfortNet heating air conditioning system differs from a legacy traditional system in the manner in which the indoor unit outdoor unit and thermostat interact with one another In a traditional system the thermostat sends commands to the indoor and outdoor units via analog 24 VAC signals It is a one way communication path in that the indoor and outdoor units typically do not return information to the thermostat On the other hand th
39. for the unit s is the angle to obstructions Either side adjacent the valves can be placed toward the structure provided the side away from the structure maintains minimum service clearance Corner installations are strongly discouraged amp NOT RECOMMENDED B B B B Minimum Airflow Clearance ModeiType A B C AA This unit can be located at ground floor level or on flat roofs At ground floor level the unit must be on a solid level foundation that will not shift or settle To reduce the possibility of sound transmission the foundation slab should not be in contact with or be an integral part of the building foundation Ensure the foundation is sufficient to support the unit Aconcrete slab raised above ground level provides a suitable base INSTALLATIONS If itis necessary to install this unit on a roof structure ensure the roof structure can support the weight and that proper con sideration is given to the weather tight integrity of the roof Since the unit can vibrate during operation sound vibration transmission should be considered when installing the unit Vibration absorbing pads or springs can be installed between the condensing unit legs or frame and the roof mounting as sembly to reduce noise vibration NOTE These units require special location consideration in areas of heavy snow accumulation and or areas with prol
40. iNG REFRIGERANT LINES If burying refrigerant lines can not be avoided use the following checklist 1 Insulate liquid and suction lines separately 2 Enclose all underground portions of the refrigerant lines in waterproof material conduit or pipe sealing the ends where tubing enters exits the enclosure 3 Ifthelines must pass under or through a concrete slab ensure lines are adequately protected and sealed REFRIGERANT LINE CONNECTIONS IMPORTANT To avoid overheating the service valve TXV valve or filter drier while brazing wrap the component with a wet rag or use a thermal heat trap compound Be sure to follow the manufacturer s instruction when using the heat trap compound Note Remove Schrader valves from service valves before brazing tubes to the valves Use a brazing alloy of 296 minimum silver content Do not use flux Torch heat required to braze tubes of various sizes is proportional to the size of the tube Tubes of smaller size require less heat to bring the tube to brazing temperature before adding brazing alloy Applying too much heat to any tube can melt the tube Service personnel must use the appropriate heat level for the size of the tube being brazed NOTE The use of a heat shield when brazing is recommended to avoid burning the serial plate or the finish on the unit 1 The ends of the refrigerant lines must be cut square deburred cleaned and be round and free from nicks or dents Any other conditi
41. inal legacy traditional system terminal block blocks are securely twisted together prior to inserting into terminal block Green Receive LED Verify heat pump installation type legacy traditional or communicating Check data 1 data 2 voltages Rapid Flashing Normal network traffic Control is talking on network as expected On Solid Data 1 Data 2 miss wire Data 1 and data 2 wires reversed Check communications Turn power OFF prior to at heat pump thermostat or wiring data 1 data 2 repair CT compatible indoor unit wires Short between data 1 and Check wire connections at Verify wires at terminal data 2 wires terminal block blocks are securely twisted together prior to inserting into terminal block Short between data 1 or Check data 1 data 2 data 2 wires and R voltages 24VAC or C 24VAC common 15 TROUBLESHOOTING INFORMATION CONDENSING UNIT System Operating Pressures Complaint No Cooling Unsatisfactory Cooling Heating POSSIBLE CAUSE DOTS IN ANALYSIS GUIDE INDICATE POSSIBLE CAUSE SYMPTOM System will not start Compressor will not start fan runs Comp and Cond Fan will not start Evaporator fan will not start Condenser fan will not start Compressor runs goes off on overload Compressor cycles on overload System runs continuously little cooling htg Too cool and then too warm Not cool enough on warm days Certain areas too cool others too warm Compressor
42. ion Complete registration as prompted To register your Amana brand unit go to www amana hac com and click Warranty Registration Complete registration as prompted IMPORTANT Product limited warranty certificates for models currently in production can be viewed at www goodmanmfg or www amana hac com If your model is not currently in production or does not appear on the website please contact your installing con tractor or contact customer service 877 254 4729 to obtain a copy of your warranty certificate Each product overview page contains a Product Warranty link by clicking on it you will be able to view the limited warranty coverage for that specific product To view warranty registration information click on the Product Warranty text on the left navi gation panel on the home page of each website The Online Product Registration pages are located in this same section SHIPPING INSPECTION Always keep the unit upright laying the unit on its side or top may cause equipment damage Shipping damage and subse quent investigation is the responsibility of the carrier Verify the model number specifications electrical characteristics and accessories are correct prior to installation The distribu tor or manufacturer will not accept claims from dealers for trans portation damage or installation of incorrectly shipped units amp REGULATIONS This product is designed and manufactured to comply with
43. is strongly discouraged Outdoor units are approved for operation above 55 F in cooling mode Operation below 55 F requires the use of an approved low ambient kit Operating the unit in a structure that is not complete either as part of new construction or renovation will void the warranty FEATURES This heat pump is a part of the ComfortNet family of prod ucts It may be installed as part of a legacy system using a standard 24 VAC thermostat However with the CTKO ComfortNet thermostat kit this heat pump may be installed as part of a digitally communicating system The ComfortNet System provides automatic airflow configuration enhanced setup features and enhanced diagnostics It also reduces the num ber of thermostat wires to a maximum of four and a minimum of two INSTALLATION CLEARANCES Special consideration must be given to location of the con densing unit s in regard to structures obstructions other units and any all other factors that may interfere with air circulation Where possible the top of the unit should be completely unob structed however if vertical conditions require placement be neath an obstruction there should be a minimum of 60 inches between the top of the unit and the obstruction s The specified dimensions meet requirements for air circulation only Consult all appropriate regulatory codes prior to deter mining final clearances Another important consideration in selecting a location
44. lose pump valve and hold vacuum for 10 minutes Typically pressure will rise during this period f the pressure rises to 1000 microns or less and remains steady the system is considered leak free proceed to startup e f pressure rises above 1000 microns but holds steady below 2000 microns moisture and or noncondensibles may be present or the system may have a small leak Return to step 2 If the same result is encountered check for leaks as previously indicated and repair as necessary then repeat evacuation l fpressure rises above 2000 microns a leak is present Check for leaks as previously indicated and repair as necessary then repeat evacuation 5000 4500 4000 LEAK S PRESENT 3500 3000 2500 VACUUM IN MICRONS 2000 CONDENSIBLES OR SMALL LEAK PRESENT 1500 1000 NO LEAKS NO CONDENSIBLES 500 MINUTES ELECTRICAL CONNECTIONS A warnine HIGH VOLTAGE DISCONNECT ALL POWER BEFORE SERVICING MULTIPLE POWER SOURCES MAY BE PRESENT FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE PERSONAL INJURY OR DEATH DUE TO ELECTRIC SHOCK WIRING MUST CONFORM WITH NEC or CEC AND ALL LOCAL CODES UNDERSIZED WIRES COULD CAUSE POOR EQUIPMENT PERFORMANCE EQUIPMENT DAMAGE OR FIRE A warnine TO AVOID THE RISK OF FIRE OR EQUIPMENT DAMAGE USE COPPER CONDUCTORS The condensing unit rating plate lists pertinent electrical data necessary for proper electrical servi
45. lowrator Heating Cycle Only Heat Pump For detailed service information refer to the Remote Condensing Unit Service manual 16 UNITARY DIAGNOSTIC CODES TROUBLESHOOTING INFORMATION pe oudde 104 sjeeus uoneouioeds eunsseJd onejs pue s eeus uoneoyioeds ees 1994100 Buisn 5 sjun Joopino pue Joopul JUSA pepeeu se 92159 3JoMonp Y90949 pepeeu uojeuu ssitu 400pu epoo eui Ke dsip s q31 snmeis onsouBeip pejeJ amp ejyu eDeis ojeJedo Buneoiunuuioo se eoe deJ uee o pezisjepun eAngoujses e jeeu 1euonipuoo 0 5 2940 POYOOIG e popuewap OU 440 MOTJMIV uey jueseJd peonpej 440 Jewod 499u2 JOJOW JOOpU e 6q SI J NO 440 8 3eeu 1euonipuoo 01 U09 JO JOOP
46. n or Replace Dirty Indoor Coil Not enough air across Indoor Coil Inspect Coil Clean Check Blower Speed Duct Static Press Filter Too much air across Indoor Coil Reduce Blower Speed Overcharge of Refrigerant Recover Part of Charge Dirty Outdoor Coil Noncondensibles Inspect Coil Clean Recover Charge Evacuate Recharge Recirculation of Condensing Air Remove Obstruction to Air Flow Infiltration of Outdoor Air Check Windows Doors Vent Fans Etc Improperly Located Thermostat Air Flow Unbalanced Relocate Thermostat Readjust Air Volume Dampers System Undersized Refigure Cooling Load Broken Internal Parts Replace Compressor Broken Valves Test Compressor Efficiency Inefficient Compressor Test Compressor Efficiency Wrong Type Expansion Valve Expansion Device Restricted Replace Valve Remove Restriction or Replace Expansion Device Oversized Expansion Valve Undersized Expansion Valve Expansion Valve Bulb Loose Replace Valve Replace Valve Tighten Bulb Bracket Inoperative Expansion Valve Check Valve Operation Loose Hold down Bolts Tighten Bolts Faulty Reversing Valve Replace Valve or Solenoid Faulty Defrost Control Test Control Faulty Defrost Thermostat Test Defrost Thermostat Cooling or Heating Cycle Heat Pump Check Flowrator amp Seat or Replace F
47. national codes Installation in accordance with such codes and or prevailing local codes regulations is the responsibility of the installer The manufacturer assumes no responsibility for equip ment installed in violation of any codes or regulations Rated performance is achieved after 72 hours of operation Rated per formance is delivered at the specified airflow See outdoor unit specification sheet for split system models or product cation sheet for packaged and light commercial models Speci fication sheets can be found at www goodmanmfg com for Goodman brand products or www amana hac com for Amana brand products Within either website please select the resi dential or commercial products menu and then select the submenu for the type of product to be installed such as air conditioners or heat pumps to access a list of product pages that each contain links to that model s specification sheet The United States Environmental Protection Agency EPA has issued various regulations regarding the introduc tion and disposal of refrigerants Failure to follow these regulations may harm the environment and can lead to the imposition of substantial fines Should you have any questions please contact the local office of the EPA If replacing a condensing unit or air handler the system must be manufacturer approved and Air Conditioning Heating and Refrigeration Institute AHRI matched NOTE Installation of unmatched systems
48. ng ends round and free from burrs Clean the tubing to prevent contamination Do NOT let refrigerant lines come in direct contact with plumb ing ductwork floor joists wall studs floors and walls When running refrigerant lines through a foundation or wall openings should allow for sound and vibration absorbing material to be placed or installed between tubing and foundation Any gap between foundation or wall and refrigerant lines should be filled with a pliable silicon based caulk RTV or a vibration damping material Avoid suspending refrigerant tubing from joists and studs with rigid wire or straps that would come in contact with the tubing Use an insulated or suspension type hanger Keep both lines separate and always insulate the suction line These sizes are suitable for line lengths of 79 feet or less If a run of more than eighty feet is required refer to Remote Cool ing Service Manual or TP 106 Long Line Set Application R 22 or TP 107 Long Line Set Application R 410A or contact your distributor for assistance RECOMMENDED INTERCONNECTING TUBING Ft Cond 024 50 79 Unit Line Diameter In OD Tons Suet Liq Suet Liq Suct Uia Lines greater than 79 feet in length or vertical elevation changes more than 50 feet refer to the Remote Cooling Service Manual or contact your distributor for assistance Insulation is necessary to prevent condensation from forming and dropping from the suction line Armaflex o
49. on increases the chance of a refrigerant leak 2 Sweep the refrigerant line with nitrogen or inert gas during brazing to prevent the formation of copper oxide inside the refrigerant lines The POE oils used in R 410A applications will clean any copper oxide present from the inside of the refrigerant lines and spread it throughout the system This may cause a blockage or failure of the metering device 3 After brazing quench the joints with water or a wet cloth to prevent overheating of the service valve 4 Ensure the filter drier paint finish is intact after brazing If the paint of the steel filter drier has been burned or chipped repaint or treat with a rust preventative This is especially important on suction line filter driers which are continually wet when the unit is operating NOTE Be careful not to kink or dent refrigerant lines Kinked or dented lines will cause poor performance or compressor damage Do NOT make final refrigerant line connection until plugs are removed from refrigerant tubing NOTE Before brazing verify indoor TXV is correct for R410A and proper size Leak TESTING NITROGEN OR NrrRoGEN TRACED AQ WARNING TO AVOID THE RISK OF FIRE OR EXPLOSION NEVER USE OXYGEN HIGH PRESSURE AIR OR FLAMMABLE GASES FOR LEAK TESTING OF A REFRIGERATION SYSTEM d warnine TO AVOID POSSIBLE EXPLOSION THE LINE FROM THE NITROGEN CYLINDER MUST INCLUDE A PRESSURE REGULATOR AND A PRESSURE RELIEF VALVE T
50. onged continuous subfreezing temperatures Heat pump unit bases have cutouts under the outdoor coil that permit drainage of frost accumulation Situate the unit to permit free unobstructed drainage of the defrost water and ice A minimum 3 clearance under the outdoor coil is required in the milder climates In more severe weather locations it is recommended that the unit be elevated to allow unobstructed drainage and air flow The following elevation minimums are recommended Design Temperature 15 and above Suggested Minimum Elevation 2 1 2 5 10 14 12 SAFE REFRIGERANT HANDLING While these items will not cover every conceivable situation they should serve as a useful guide WaRniNG TO AVOID POSSIBLE INJURY EXPLOSION OR DEATH PRACTICE SAFE HANDLING OF REFRIGERANTS A warnine REFRIGERANTS ARE HEAVIER THAN AIR THEY CAN PUSH OUT THE OXYGEN IN YOUR LUNGS OR IN ANY ENCLOSED SPACE TO AVOID POSSIBLE DIFFICULTY IN BREATHING OR DEATH NEVER PURGE REFRIGERANT INTO AN ENCLOSED ROOM OR SPACE BY LAW ALL REFRIGERANTS MUST BE RECLAIMED IF AN INDOOR LEAK IS SUSPECTED THOROUGHLY VENTILATE THE AREA BEFORE BEGINNING WORK LIQUID REFRIGERANT CAN BE VERY COLD AVOID POSSIBLE FROST BITE OR BLINDNESS AVOID CONTACT AND WEAR GLOVES AND GOGGLES IF LIQUID REFRIGERANT DOES CONTACT YOUR SKIN OR EYES SEEK MEDICAL HELP IMMEDIATELY ALWAYS FOLLOW EPA REGULATIONS NEVER BURN REFRIGERANT AS POISONOUS
51. oo eui eDeyoA Uonipuoo 5 831 sniejs onsouBeip OVA 8 uey LIOA OU JI 440 jo3uoo Jod MO 1991102 5591 uepuooes 2 5 Ju s sd 5 4 Bunejedo eq Jeedde 440 Jewod esnj YOOYD e Sjoejep 01 U0 9 60 MOT 10114 NO 440 6 440 jeeu jeuonipuoo 5 9 SajoN 940284102 ajqissog yney LA MOII9A T5375 s 2nsouBeiq 1 9 jo swo dwks 23 SPLIT SYSTEMS AIR CONDITIONING AND HEAT PUMP HOMEOWNER S ROUTINE MAINTENANCE RECOMMENDATIONS We strongly recommend a bi annual maintenance checkup be performed before the heating and cooling seasons begin by a qualified servicer Replace or Clean Filter IMPORTANT NOTE Never operate unit without a filter installed as dust and lint will build up on internal parts resulting in loss of efficiency equipment damage and possible fire An indoor air filter must be used with your comfort system A properly maintained filter
52. operly tightened to prevent leaks Make sure cap is clean and apply refrigerant oil to threads and sealing surface on inside of cap Tighten cap finger tight and then tighten additional 1 6 of a turn 1 wrench flat to properly seat the sealing surfaces Do not introduce liquid refrigerant from the cylinder into the crankcase of the compressor as this may damage the compressor 1 Break vacuum by fully opening liquid and suction base valves 2 Set thermostat to call for cooling Check indoor and outdoor fan operation and allow system to stabilize for 10 minutes for fixed orifices and 20 minutes for expansion valves CHARGE VERIFICATION A warnine REFRIGERANT UNDER PRESSURE 00 NOT OVERCHARGE SYSTEM WITH REFRIGERANT Do NOT OPERATE UNIT IN A VACUUM OR AT NEGATIVE PRESSURE FAILURE TO FOLLOW PROPER PROCEDURES MAY CAUSE PROPERTY DAMAGE PERSONAL INJURY OR DEATH Ay caution USE REFRIGERANT CERTIFIED TO AHRI STANDARDS USED REFRIGERANT MAY CAUSE COMPRESSOR DAMAGE AND IS NOT COVERED UNDER THE WARRANTY MOST PORTABLE MACHINES CANNOT CLEAN USED REFRIGERANT TO MEET AHRI STANDARDS NOTICE VIOLATION OF EPA REGULATIONS MAY RESULT IN FINES OR OTHER PENALTIES Ay caution OPERATING THE COMPRESSOR WITH THE SUCTION VALVE CLOSED MAY CAUSE SERIOUS COMPRESSOR DAMAGE FINAL CHARGE ADJUSTMENT The outdoor temperature must be 60 F or higher Set the room thermostat to COOL fan switch to AUTO and set the tem perat
53. ore this fault the first three consecutive times the fault occurs Navigate to the diagnostics menu as described above in Accessing and Navigating the Advanced Features Menus NOTE Itis highly recommended that the fault history be cleared when performing maintenance or servicing the heat pump Pump ApvANCED FEATURES CONFIGURATION Submenullem Indication for Display Only not User Modifiable Number of AC Stages CL STG Displays the number of air conditioning stages applies to AC and Number of HP Stages HT STG Displays the number of heat pump stages applies to HP only AC Tonnage TONS Displays the air conditioning tonnage applies to AC and HP DIAGNOSTICS Clear Fault History CLEAR NO or YES z M NOTE Consecutively repeated faults are shown a maximum of 3 times _______ Indication for Display Only not User Modifiable __________ _ o Submenu Outdoor Air Temperature Displays the outdoor air Sensor may or may not be available on an AIR TMP temperature air conditioner Check air conditioner instructions for details Outdoor Coil Temperature Displays the outdoor coil Required for heat pump operation COIL TMP temperature COOL SET UP User Modifiable Options Cool Airflow Trim 10 to 10 in 2 increments Selects the airflow trim amount applies to Cool Airflow Profile A B C or D default is A Selects the airflow
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55. r satisfactory equivalent with 3 8 min wall thickness is recommended In severe conditions hot high humidity areas 1 2 insulation may be required Insulation must be installed in a manner which protects tubing from damage and contamination Where possible drain as much residual compressor oil from existing systems lines and traps pay close attention to low areas where oil may collect NOTE If changing refrigerant types ensure the indoor coil and metering device is compat ible with the type of refrigerant being used otherwise the in door coil must be replaced Liquid Line Suction Line T Mounting the evaporator coil above the condensing unit will require an inverted loop in the suction line adjacent near the connection to the evaporator The top of the loop must be slightly higher than the top of the coil Mounting the condensing unit above the evaporator coil will not require an oil trap in the suction line at the evaporator except when the condensing unit is over 80 feet above the evaporator Refer to the latest revision of long line set guidelines TP 107 Of Bunv
56. raffic The table below indicates the LED status and the corresponding potential problem LEARN button Used to reset the network Depress the button for approximately 2 seconds to reset the network SYSTEM TROUBLESHOOTING NOTE Refer to the instructions accompanying the CT compatible indoor air handler furnace modular blower unit for troubleshooting information Refer to the Troubleshooting Chart at the end of this manual for a listing of possible air conditioner and heat pump error codes possible causes and corrective actions LED LED Status Indication Possible Causes Corrective Action s Notes amp Cautions 1 Flash Communications Failure Communications Failure Depress Learn Button Depress once quickly for a power up reset Red Communications Depress and hold for 2 LED seconds for an out of box reset 2 Flashes Out of box reset Control power up None Learn button depressed No power No power to furnace Check fuses and circuit Turn power OFF prior to breakers replace reset repair Communications error Open fuse Replace blown fuse Communications error Check for shorts in low voltage wiring in heat pump system Reset network by depressing learn button Check data 1 data 2 voltages 1 Steady Flash No network found Broken disconnected data Check communications Turn power OFF prior to wire s wiring data 1 data 2 repair wires Heat pump is installed as a Check wire connections at Verify wires at term
57. stat ComfortNet compat ible indoor unit and up to four wires The unit also has legacy 24 inputs to support non com municating systems Route control wires through the low volt age port and terminate in accordance with the wiring diagram HIGH VOLTAGE PORT LOW VOLTAGE PORT Voltage Ports NOTE For two stage units refer to the Installation Instructions supplied with the variable speed indoor units for field wiring connections COMMUNICATING THERMOSTAT HEAT PUMP INDOOR UNIT Communicating Thermostat with Low Voltage Wires to Heat Pump NOTE If the heat pump unit is wired in the communicating mode together with the compatible communicating indoor unit and CTKO communicating thermostat then the communicating thermostat is able to search and identify the condensing unit when power is applied to the system Refer to the Installation Manual of the optional communicating thermostat for more information Use the dipswitch to select defrost time interval 30 60 90 120 minutes see chart below Factory default setting is 30 minutes The maximum defrost cycle time is 10 minutes 60 B 30 og 30 e l Wio lio 60 Minutes 120 Minutes e Bl coa 0 90 Minutes Dipswitch Settings for Selection of Defrost Time WIRING DIAGRAM HIGH VOLTAGE DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT MULTIPLE POWER SOURCES MAY BE PRESENT
58. the Advanced Installer Configuration menu A V Installer SetTime Run onfig Schedule Clean Display Upon entering the advanced menus the Advanced Fault Menu is displayed The display will change to the Fault Screen and indicate any faults that may be present in the indoor or outdoor equipment If a fault is present the Fault Screen will show the equipment and an error code with a description of the fault Touch Xl or gt keys to view the fault status of any remaining equipment The text NO FAULTS will be scrolled if no errors are present HH lt I eg Call for Service NO A 5 Touch the A or A to step through the list of installed equip ment including the thermostat Touch the Installer Config key to enter the submenus for the equipment displayed The text WORKING will be displayed in the scrolling display area while the data is being retrieved The first sub menu is then displayed See tables below for listing of furnace sub menus NO BLOW Touch the or A to step through the list of submenus and view settings setting can be adjusted lt and keys will appear Use the lt or gt keys to adjust the setting to the desired value Touch the A or A to step to the next item WORKING will appear as the settings are being updated DONE will appear to indicate the change was accepted If the change is not accepted the display will show FAIL th
59. tion of the control module on the ECM motor Adequate refrigerant charge for the matching HSVTC evapora tor coil and 15 Foot of lineset is supplied with the condensing unit If using evaporator coils other than HSVTC coil it maybe necessary to add or remove refrigerant to attain proper charge If line set exceeds 15 feet in length refrigerant should be added at 6 ounces per foot of liquid line NOTE Charge should always be checked using superheat when using a piston and subcooling when using TXV equipped indoor coil to verify proper charge Open the suction service valve first If the liquid service valve is opened first oil from the compressor may be drawn into the indoor coil TXV restricting refrigerant flow and affecting opera tion of the system When opening valves with retainers open each valve only until the top of the stem is 1 8 from the retainer To avoid loss of refrigerant DO NOT apply pressure to the retainer When open ing valves without a retainer remove service valve cap and in sert a hex wrench into the valve stem and back out the stem by turning the hex wrench counterclockwise Open the valve until it contacts the rolled lip of the valve body NOTE These are not back seating valves It is not necessary to force the stem tightly against the rolled lip After the refrigerant charge has bled into the system open the liquid service valve The service valve cap is the secondary seal for the valve and must be pr
60. transmits the de mand along with a fan request to the indoor unit The indoor unit then sends the demand to the ECM motor The table below lists the various ComfortNet systems the operating mode and airflow demand source Syst System Airflow Demand xem Operating Mode Source Heat Pump Heating Only HP Blectric Heat of Heat Pump or Air Strips Handler Demand Electric Heat Strips Air Handler Only Heat Pump Air Handler Heat Pump Furnace Heat Pump Heating Heat Pump Only For example assume the system is a heat pump matched with an air handler With a call for low stage cooling the heat pump will calculate the system s low stage cooling air flow demand The heat pump will then send a fan request along with the low stage cooling airflow demand to the air handler Once received the air handler will send the low stage cooling airflow demand to the ECM motor The ECM motor then delivers the low stage cooling airflow The follow ing table lists the nominal high and low stage airflow for the ComfortNet heat pumps tow High Low eo so f eoo CTKO WIRING NOTE Refer to section Electrical Connections High Voltage Connections for 208 230 volt line connections to the air conditioner or heat pump NOTE Aremovable plug connector is provided with the control to make thermostat wire connections This plug may be removed wire connections made
61. ure control well below room temperature After system has stabilized per startup instructions check subcooling and superheat as detailed in the following section SATURATED SUCTION PRESSURE TEMPERATURE CHART SUCTION PRESSURE SATURATED SUCTION TEMPERATURE F R22 Raoa 52 SATURATED LIQUID PRESSURE TEMPERATURE CHART SATURATED LIQUID TEMPERATURE F R 410A NIN DT NIN EXPANSION VALVE SYSTEM Ay caution TO PREVENT PERSONAL INJURY CAREFULLY CONNECT AND DISCONNECT MANIFOLD GAUGE HOSES ESCAPING LIQUID REFRIGERANT CAN CAUSE BURNS DO NOT VENT REFRIGERANT INTO THE ATMOSPHERE RECOVER ALL REFRIGERANT DURING SYSTEM REPAIR AND BEFORE FINAL UNIT DISPOSAL NOTE Units matched with indoor coils equipped with non adjustable TXV should be charged by subcooling only Run the remote on low stage cooling for 10 minutes until refrig erant pressures stabilize Use the following guidelines and methods to check unit operation and ensure that the refriger ant charge is within limits Charge the unit on low stage 1 Purge gauge lines Connect service gauge manifold to base valve service ports Run system at least 10 minutes to allow pressure to stabilize sR s A C5 ro ro ofaj Er AR A
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