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108

Disassembly of Indoor Unit

18,000 btuh

Warning - Wait 10 minutes after power is disconnected before starting disassembly

Step 1.

Remove the indoor tube temperature sensor

Step 2.

Remove the screws holding the bonding

wire, then remove the wire

Step 3.

Remove the clamps holding the electrical

box cover to remove cover.

Step 4.

Remove all wiring terminals, remove all

screws holding the box, then remove the

sub-assembly.

7. Remove electrical box sub-assembly

Heat exchanger thermistor

Bonding wire

Screw

Electrical box cover

Sub-assembly

Screw

Содержание TERRA09HP230V1A

Страница 1: ...Terra DUCTLESS SYSTEM Installation Service Troubleshooting Models TERRA09HP230V1A TERRA12HP230V1A TERRA18HP230V1A TERRA24HP230V1A ...

Страница 2: ...ntenance and Emergency Operation Electrical Schematics Troubleshooting Outdoor Components Fault Status Displays Error Code Diagnostics Disassembly of Indoor Unit 9 000 12 000 btuh Models Disassembly of Indoor Unit18 000 btuh Model Disassembly of Indoor Unit24 000 btuh Model Disassembly of Outdoor Unit 9 000 12 000 btuh Models Disassembly of Outdoor Unit 18 000 btuh Models Disassembly of Outdoor Un...

Страница 3: ... can cause personal injury or death Refer to your local and national codes for proper grounding Have the unit properly grounded with all connec tions tight Loose connections can cause overheat ing and a possible fire hazard Safety Precautions Warnings Warning Warning Caution Never install the unit in a place where a combustible gas might leak or it may lead to fire or explosion Make a proper provi...

Страница 4: ...h 18 18 000 btuh 24 24 000 btuh 30 30 000 btuh 36 36 000 btuh 42 42 000 btuh AC Cooling Only HP Heat Pump HC Heat Cool 230V 208 20V 60Hz 1PH 115V 115V 60Hz 1PH Style Color Designation Revision Level S System O Outdoor H Indoor High Wall D Indoor Duct C Indoor Cassette F Indoor Floor Ceiling Product Catalog Number Nomenclature ...

Страница 5: ...ckage Size WxHxD Inches 37 2 x 14 9 x 11 7 37 2 x 14 9 x 11 7 Net Gross Weight Lbs 24 31 24 31 Outdoor Unit Compressor Type DC Inverter Driven Sound Pressure Level dBa 49 49 Unit Size WxHxD Inches 35 4 x 23 5 x 14 9 35 4 x 23 5 x 14 9 Package Size WxHxD Inches 37 3 x 25 4 x 16 5 37 3 x 25 4 x 16 5 Net Gross Weight Lbs 86 90 87 92 Refrigerant Charge Oz R410A 45 9 R410A 45 9 Installation Line Set Si...

Страница 6: ...82 706 647 589 530 471 412 353 Sound Pressure Level T H MH M ML L mute dBa 51 48 45 43 39 36 33 52 49 47 45 43 41 38 Unit Size WxHxD Inches 40 1 x 12 6 x 9 1 46 4 x 12 8 x 10 4 Package Size WxHxD Inches 43 2 x 15 6 x 13 4 49 2 x 16 2 x 14 0 Net Gross Weight Lbs 31 42 40 53 Outdoor Unit Compressor Type DC Inverter Driven Sound Pressure Level dBa 56 56 Unit Size WxHxD Inches 37 6 x 27 6 x 15 6 38 6 ...

Страница 7: ...tware will adjust the compressor frequency or shut down the system indicating the appropriate fault The indoor unit contains a digital display which will indicate the current fault The evaporator swing mo tors fan motors and circuit board are also components of the indoor unit The indoor units have a bypass switch to bypass the remote control if lost or batteries fail This will be explained later ...

Страница 8: ...changer Inverter Compressor Temperature Sensor 4 way Accumulator Compressor Refrigeration Components Product Introduction High Pressure Switch Temperature Sensor Strainer Note Component locations may vary depending on models Electronic Expansion Valve ...

Страница 9: ...n the temperature sensor readings The adjust ment process and compressor speed are controlled by the outdoor circuit board E The refrigerant leaving the EEV will be in a low pressure temperature saturated state This cold saturated re frigerant will move through the coil absorbing heat This liquid will flash to a vapor and will be superheated to about 10 degrees F Since this tubing is cold it must ...

Страница 10: ...through the filter then trough the EEV reducing the refrigerant to a low pressure liquid and will maintain 10 degrees F of superheat E The cold refrigerant will travel through the outdoor coil evaporator and will pickup heat from the outdoor air This will cause the cold saturated refrigerant to flash to a saturated mixture which will be superheated to 10 degrees F F The superheated vapor will trav...

Страница 11: ... Indoor Tube Thermistor Horizontal Swing Motor Vertical Swing Motor Step Motor Ambient Temperature Sensor Indoor Unit Components Terra 9 000 btuh Indoor Unit Other Terra models may very slightly Indoor Circuit Board Fan Motor ...

Страница 12: ...t Components Terra 9 000 btuh Outdoor Unit Other Terra models may very slightly Compressor 4 way Accumulator High Pressure Switch Temperature Sensor Strainer Outdoor Fan Circuit Board Note Component locations may vary depending on models ...

Страница 13: ...13 Product Introduction Operation Characteristic Curve ...

Страница 14: ...14 Product Introduction Capacity Variation Ratio According to Temperature ...

Страница 15: ...ndoor Fan Mode Outdoor Fan Mode Compressor Speed rps Indoor Outdoor T1 O F T2 O F 80 6 66 6 95 75 2 9K 135 57 2 98 6 Turbo High 46 12K 152 59 98 6 Turbo High 70 18 24K 131 160 46 4 51 8 to 51 6 57 2 167 181 4 to 98 6 118 4 Turbo High 75 Cooling Temperature Condition O F Model Pressure PSI Heat Exchanger Pipe Temperature Indoor Fan Mode Outdoor Fan Mode Compressor Speed rps Indoor Outdoor T1 O F T2...

Страница 16: ...16 Noise Criteria Curve Tables Product Introduction ...

Страница 17: ...rature drops below 360 F the compressor will operate at a reduced frequency If the evaporator is below 300 F for 3 minutes the compressor will stop 30 seconds later the outdoor fan will stop In cooling mode the indoor fan and swing motor will remain on If the evaporator temperature is 500 F and the compressor is off for at least 3 minutes the compressor will resume its normal operation state Overc...

Страница 18: ...of operation or 2 minutes of no fan operation and the indoor evaporator coil temperature is 1080 F the indoor fan will operate at its preset condition If the indoor ambient temperature is 90 F and 20 F of the preset temperature the unit will run in its original mode of operation If the compressor is running and the mode is changed from cooling to heating the 4 way valve will be energized 2 3 min u...

Страница 19: ...conditions below A Outdoor ambient 410 F and outdoor coil 280 F B 280 F Toutdoorambient 410 F Toutdoortube 210 F C 230 F Toutdoorambient 280 F Toutdoortube 180 F D 140 F Toutdoorambient 230 F Toutdoortube Tcompensation Toutdoorambient 370 F 3 During defrost if run time for the compressor does not reach 3 minutes the defrost cycle will not start for the next 2 hours At that time the compressor stop...

Страница 20: ...inverter and compressor in a safety and reliable operating range A If Itotal 6 an increase in frequency will be allowed B If Itotal 7 increasing the frequency is not allowed C If Itotal 8 the compressor will decrease its frequency D If Itotal 9 the compressor will stop and the indoor fan will stop after 30 seconds 4 Fan Mode Under this mode the fan will run at the preset speed and the outdoor fan ...

Страница 21: ...e compressor will run at reduced frequency C If Ttube 2300 F the compressor will stop D If Ttube 1940 F and the compressor has been off for at least 3 minutes the compressor will resume operation Communication Fault If the unit fails to receive correct signals for a 3 minutes communication fault will occur and the whole system will stop and a E6 will be displayed on the front panel of the indoor u...

Страница 22: ...his button will not function 4 Time Switch The unit will stop and start by setting the Timer on the remote controller 5 Energy Savings Mode Press Temp Clock simultaneously display will indicate SE In heating mode refer to the Cold Air Prevention explained in the 3 Heating Mode process In cooling mode the fan speed will adjust according to the fan speed curve below System Operation 9 000 12 000 btu...

Страница 23: ...ur of operation the temperature setting will raise 20 F b After 2 hours of operation the temperature setting will increase 40 F and stay at this setting until the sleep mode in canceled 2 Heat Mode a After 1 hour of operation the temperature setting will decrease 20 F b After 2 hours of operation the temperature setting will decrease 40 F and stay at this setting until the sleep mode in canceled S...

Страница 24: ... setting will raise 240 F above initial setpoint and stay at this setting c After 7 hours of operation the setpoint will move back to the initial setpoint and remain until the sleep mode in canceled Cool or Dry Mode Initial setpoint above 850 F a The original setpoint will be maintained for 7 hours then after 7 hours it will decrease by 10 F until the sleep mode is canceled 2 Heat Mode Initial set...

Страница 25: ...the data Repeat this procedure for the remaining hours total of 8 After all 8 settings have been saved the remote controller will automatically revert back to the standard time and temperature display At anytime you may press the ON OFF MODE TIMER SLEEP or TURBO buttons to cancel the Sleep Mode 3 7 Indoor Fan Control The indoor fan can be set to Ultra High High Med Low and Auto with the remote con...

Страница 26: ...indoorambient 20 F of Tsetpoint fan will run on low speed Dry Mode The indoor fan will be set to low speed Heating Mode a Tindoorambient Tsetpoint 10 F fan will run on high speed b Tsetpoint 10 F Tindoorambient Tsetpoint 50 F fan will run on medium speed c Tindoorambient Tsetpoint 20 F fan will run on low speed Tpreset Tpreset 20 F Tpreset 40 F Fan Speed High Med Low Off Tamb Tpreset Tpreset 10 F ...

Страница 27: ... move to L1 All other positions can be set by pressing the appropriate button to change the swing location Horizontal swing During power up the vertical louver will be reset to the start position and then stop in the middle position There are 7 positions that the horizontal swing can be set including automatic swing and stopping between position 1 5 System Operation 9 000 12 000 btuh Models cont H...

Страница 28: ... mode the time left will not be remembered and will start to recount from the beginning There will be a 3 minute compressor delay before resuming 14 Outdoor Compressor and Condenser Heating Band Control Under normal conditions the control logic of the Electric Heating Bands will be as follows 1 Control of Compressor Electric Heating Band a Conditions for startup The compressor is off and outdoor a...

Страница 29: ...eed based on indoor load and compressor amperage When the indoor tempera ture is satisfied the compressor will stop then 30 seconds later the outdoor fan will stop Evaporator Freeze Protection The software will monitor the indoor evaporator coil for freezing In Cooling or Dry mode if the Indoor tubes are 320 F for 3 consecutive minutes the compressor will stop The compres sor will start when the t...

Страница 30: ...ndoor fan will operate in the Cold Air Prevention mode in which the indoor fan will have a 2 minute delay after the call for heating The indoor evaporator coil temperature must reach 1040 F before the indoor fan will start this will prevent cold air from discharging from the indoor coil When the indoor evapo rator coil temperature is 1040 F the indoor fan will operate at low speed for 1 minute Wit...

Страница 31: ... the compressor has started up after changing to cooling or drying mode and defrost has finished The run time will not be cleared when the unit has stopped after reaching the setpoint temperature a protection fault or changing to fan mode There are 3 perimeters used in the defrost algorithms Outdoor ambient Toutdoorambient Outdoor tube Toutdoortube and a calculated Tcompensation Tcompensation is c...

Страница 32: ...or running The system guards against discharging cold air in heating mode It will delay the indoor fan until the evaporator coil has warmed up to discharge warm comfortable air into the room 1 When the Tindoorambient 750 F and the Tindoortube 1040 F with the fan in a stopped state the indoor fan will begin to run at low speed after a 2 minute delay This will reduce cold air upon heating startup Wi...

Страница 33: ...nt 730 F and 770 F the unit will operate in the previous state If it is energized for the first time it will run in Fan mode D In auto mode the cooling frequency will be the same as the cooling only mode and the heating frequency will be the same as the heating only mode 2 Protection A In cooling operation protection is the same as the cooling only mode B In heating operation protection is the sam...

Страница 34: ... not allowed B If Ttube 2170 F the compressor will run at reduced frequency C If Ttube 2300 F the compressor will stop D If Ttube 1940 F and the compressor has been off for at least 3 minutes the compressor will resume operation Communication Fault If the unit fails to receive correct signals for a 3 minutes communication fault will occur and the whole system will stop and a E6 will be displayed o...

Страница 35: ...s button will not function 4 Time Switch The unit will stop and start by setting the Timer on the remote controller 5 Energy Savings Mode Press Temp Clock simultaneously display will indicate SE In heating mode refer to the Cold Air Prevention explained in the 3 Heating Mode process In cooling mode the fan speed will adjust according to the fan speed curve below System Operation 18 000 24 000 btuh...

Страница 36: ...ours of operation the temperature setting will increase 40 F and stay at this setting until the sleep mode in canceled 2 Heat Mode a After 1 hour of operation the temperature setting will decrease 20 F b After 2 hours of operation the temperature setting will decrease 40 F and stay at this setting until the sleep mode in canceled System Operation 18 000 24 000 btuh Models cont Other Controls Produ...

Страница 37: ...setting will raise 240 F above initial setpoint and stay at this setting c After 7 hours of operation the setpoint will move back to the initial setpoint and remain until the sleep mode in canceled Cool or Dry Mode Initial setpoint above 850 F a The original setpoint will be maintained for 7 hours then after 7 hours it will decrease by 10 F until the sleep mode is canceled 2 Heat Mode Initial setp...

Страница 38: ...he data Repeat this procedure for the remaining hours total of 8 After all 8 settings have been saved the remote controller will automatically revert back to the standard time and temperature display At anytime you may press the ON OFF MODE TIMER SLEEP or TURBO buttons to cancel the Sleep Mode 3 7 Indoor Fan Control The indoor fan can be set to Ultra High High Med Low and Auto with the remoter con...

Страница 39: ... indoor fan will be set to low speed Heating Mode a Tindoorambient Tsetpoint 10 F fan will run on high speed b Tsetpoint 10 F Tindoorambient Tsetpoint 50 F fan will run on medium speed c Tindoorambient Tsetpoint 20 F fan will run on low speed System Operation 18 000 24 000 btuh Models cont Other Controls Product Introduction Tpreset Tpreset 20 F Tpreset 40 F Fan Speed High Med Low Off Tamb Tpreset...

Страница 40: ...move to L1 All other positions can be set by pressing the appropriate button to change the swing location Horizontal swing During power up the vertical louver will be reset to the start position and then stop in the middle position There are 7 positions that the horizontal swing can be set including automatic swing and stopping between position 1 5 System Operation 18 000 24 000 btuh Models cont H...

Страница 41: ...mode the time left will not be remembered and will start to recount from the beginning There will be a 3 minute compressor delay before resuming 14 Outdoor Compressor and Condenser Heating Band Control Under normal conditions the control logic of the Electric Heating Bands will be as follows 1 Control of Compressor Electric Heating Band a Conditions for startup The compressor is off and outdoor am...

Страница 42: ... or Outdoor Temperature reading 13 Health Static De Dusting Button 14 IFeel Button 15 Remote Display light 16 X fan button 17 Quiet mode available in Heat or Cool mode only 18 Sleep Button Press 9 10 for Energy Saving Mode Press to lock control Note This remote control is used in other models and some features may or may not be available Consult the owners manual for specific features for your mod...

Страница 43: ...to Mode 3 Cool Mode 4 Dry Mode 5 Fan Mode 6 Heat Mode 7 Sleep Mode 8 Quiet Mode 9 X Fan Mode 10 Display Temperature Mode 11 Timer On 12 Display Light 13 Horizontal Louvers 14 Vertical Louvers 15 Lock Control 16 Fan Setting 17 Energy Saving Mode 18 Turbo Mode 19 Health Mode 20 Static Dedusting 21 Timer Setting ...

Страница 44: ...eaks Use only dry nitrogen with a pressure regulator for pressurizing unit Pressurize with 150 psi of dry nitrogen Apply soap and water to check whether the joints are leaky A leak detector may also be used for a leakage test Hint You may want to perform leak testing and evacuation before wiring to save time electrical connections can be completed while your vacuum pump is running Step 3 System Ev...

Страница 45: ...ng installation manual requires additional 24 ounces per foot 35 25 10 additional ft x 24 2 4 ounces to be added 2 Adding addition refrigerant charge Remove the suction port cap on the valve then attach a 5 16 F x 1 4 M adapter to the suction port Connect your low side hose to the 1 4 F fitting 3 Attach refrigerant tank to hose Close all valves on your gauge set then connect the correct refrigeran...

Страница 46: ...e refrigerant tank on the scale the amount added to the system will be a nega tive amount since it was removed from the tank After the proper amount of refrigerant has been weighed in close the low side manifold valve 3 Remove refrigerant tank Close the tank valve then carefully remove the hose and adapter Replace the suction port cap on the out door unit suction valve If this is a new installatio...

Страница 47: ...d vibra tion of the unit 4 Be sure to leave enough space to allow access for routine maintenance Refer to unit installation specifi cations for clearances Select a place more than 3 feet away from any TV or other electrical appliances Indoor Unit 1 Select a suitable site where proper drainage will occur 2 Select a site where there is sufficient ventilation 3 Select a site where there is no obstruc...

Страница 48: ...irmly enough to withstand approximately 132 pounds 5 Refer to specific models for dimensional data Mounting Plate Installation 1 The piping can exit the indoor unit from either side see pictured below 2 Drill a 2 1 2 diameter hole at a slightly downward angle to the outdoor side 3 Note The outdoor hole should be approximately 1 4 lower than the indoor hole 4 Insert the piping hole sleeve into the ...

Страница 49: ...l lineset and wiring from the outside through the wall sleeve 2 Bend the indoor lineset Note a tube bender will speed up the process 3 Carefully remove flare nut from indoor coil Listen for holding charge from indoor unit No charge may indi cate a leak and should be tested 4 Use a flaring tool if necessary to create the flare con nect tubing tightening to the torque listed below Install Line Set T...

Страница 50: ... a refrigerant charge leave liquid and gas valves closed 1 After no leaks have been detected connect a vacuum pump to the outdoor unit 2 Connect appropriate hoses to manifold gauge vacuum pump and unit refrigeration connections 3 Evacuate the system until the micron gauge reads no higher than 350 microns 4 Close valve to vacuum pump if pressure does not rise above 500 microns after one minute the ...

Страница 51: ... to L1 L2 and ground 3 Connect wiring from indoor unit to 1 2 3 ground being careful to match color code of indoor connections Use 14 4 stranded wire 4 Check all connections to tightness 5 Reinstall the cover handle Note Follow all local electrical codes for electrical wiring Connect the Outdoor Wiring Installation ...

Страница 52: ...move the front panel as shown on the picture in the left 2 The first stage filter can be cleaned with a vacu um cleaner or by washing with a mild soap and 113º F water 3 The second stage filter cannot be washed use a vacuum cleaner to clean any dust lint etc The filter is made up of Titanium Dioxide 4 Recharge the Titanium Dioxide filter by placing it in the Sun for 3 4 hours every 3 6 months Tita...

Страница 53: ...53 Electrical Schematics Electrical Legend These circuit diagrams are subject to change without notice please refer to the one supplied with the unit ...

Страница 54: ...54 Electrical Schematics ...

Страница 55: ...55 Electrical Schematics These circuit diagrams are subject to change without notice please refer to the one supplied with the unit ...

Страница 56: ...56 Printed Circuit Boards Indoor Unit These circuit diagrams are subject to change without notice please refer to the one supplied with the unit ...

Страница 57: ...57 Printed Circuit Boards Outdoor Unit These circuit diagrams are subject to change without notice please refer to the one supplied with the unit ...

Страница 58: ...58 Printed Circuit Boards Outdoor Unit These circuit diagrams are subject to change without notice please refer to the one supplied with the unit ...

Страница 59: ...59 Printed Circuit Boards Outdoor Unit These circuit diagrams are subject to change without notice please refer to the one supplied with the unit ...

Страница 60: ...n of the EEV Valve in heating mode using a digital thermometer record the tem perature of the input line and the output line of the valve as indicated in the picture above With the com pressor running the input side of the valve should have a higher reading then the output side indicating that the valve is metering If the temperature readings arethesame thevalveisfullyopenandthevalveisnot metering...

Страница 61: ...res the measurement of 4 readings First re cord the temperature of the compressor discharge tubing secondly record the temperature of the suction line tube There should be no more than a 10 degrees difference between the two readings The next set of readings will require recording the temperature of the tubing going to the condens er coil and the temperature of the tubing going to the accumulator ...

Страница 62: ... 294 108 226 4 0 802 5 41 0 38 15 57 134 6 4 139 109 228 2 0 779 6 42 8 36 32 58 136 4 3 99 110 230 0 0 758 7 44 6 34 58 59 138 2 3 848 111 231 8 0 737 8 46 4 32 94 60 140 0 3 711 112 233 6 0 717 9 48 2 31 38 61 141 8 3 579 113 235 4 0 697 Using a glass of ice water place the sensor into the glass with a digital thermometer Wait a few minutes for the reading to stabilize Compare the readings to th...

Страница 63: ... windings differ greatly the windings are bad If there is a reading from any wire to the chassis there is leakage in the windings Outdoor Fan Motor Outdoor Motor Winding Resistance Check The outdoor motor is an ECM motor so resistance checks are more difficult to read Polarity of your meter will make a difference in the readings It is advisable if in doubt about the fan motor remove the plug of th...

Страница 64: ...hould be no reading from either wire to ground If readings vary from these measurements replace the heater Compressor Crankcase Heater Resistance Check Unplug the wire connector from the circuit board The resistance should read approximately 2 15K ohms There should be no reading from either wire to ground If readings vary from these measurements replace the heater Compressor Crankcase Heater Check...

Страница 65: ...rush current reduce harmonics and noise and buffers the system pro tecting the electronics from transient voltage noise The resistance between the coils will be very low approxi mately 3 ohms and should not have any resistance to ground You should disconnect the wires from the reactor before taking any readings ...

Страница 66: ...r Red indicator blinks once à Cooling dehumidify or heating current dropped frequency cur rent Red indicator blinks twice à Exhaust temp dropped frequency temp Red indicator blinks for 3 times à Tube temp dropped frequency temp Red indicator blinks for 4 times à Tube dropped frequency temp Red indicator blinks for 5 times à Outdoor condenser temp sensor malfunction Red indicator blinks for 6 times...

Страница 67: ...imes 10 Outdoor inlet pipe temp sensor of condenser has open or circuit for commercial use A5 11 Outdoor middle pipe temp sensor of condenser has open or short circuit F4 Blinks for 4 times Blinks for 5 times 12 Outdoor outlet pipe of condens er has open or short circuit for commercial use A7 13 Outdoor discharge temp sensor has open or short circuit F5 Blinks for 5 times Blinks for 7 times 14 Com...

Страница 68: ...ion for compressor H3 Blinks for 3 times Blinks for 8 times 32 Non match between indoor and outdoor units LP Blinks for 16 times 33 Malfunction of memory chip EE Blinks for 15 times 34 Wrong connection of commu nication wire or malfunction of expansion valve free match dn 35 Malfunction of current detection for the complete unit U5 Blinks for 13 times 36 Wrong connection of communi cation wire or ...

Страница 69: ...2 Low voltage protection for DC bus bar PL Blinks for 21 times Blinks for 12 times 53 High voltage protection for DC bus bar PH Blinks for 11 times Blinks for 13 times 54 PFC protection HC Blinks for 6 times Blinks for 14 times 55 High power protection not for outdoor L9 Blinks for 20 times Blinks for 9 times 56 Abnormal reversing of 4 way valve U7 Blinks for 20 times 57 Frequency limit decrease f...

Страница 70: ...nks for 11 times 63 Oil return in cooling F7 Blinks for 7 times 64 Cold air prevention E9 Blinks for 9 times 65 Freeze protection E2 Blinks twice Blinks for 3 times 66 Reading malfunction of EE PROM Blinks for 11 times 67 Reaching temperature for turn ing on the unit Blinks for 8 times 68 Frequency limit power Blinks for 13 times 69 Malfunction of outdoor fan Blinks for 14 times Fault and Status D...

Страница 71: ...ssor and outdoor fan stop while indoor fan operates During heating operation all loads stop 1 Supply voltage is unsta ble 2 Supply voltage is too low and load is too high 3 Evaporator is dirty 5 Communica tion Malfunc tion E6 Off 3S and blink 6 times o o o During cooling operation compressor stops while indoor fan motor operates During heating operation the com plete unit stops Refer to correspond...

Страница 72: ...r bad con tact of indoor evaporator temp sensor and main board terminal 2 Com ponents on the mainboard fall 3 Indoor evaporator temp sensor damaged 4 Mainboard damaged 12 Outdoor ambi ent temperature sensor is open short circuited F3 Off 3S and blink 3 times o o n During cooling and drying operating compressor stops while indoor fan operates During heating operation the complete unit will stop ope...

Страница 73: ...gh Refrigerant is insufficient Malfunction of electric expansion valve EKV 18 Voltage for DC bus bar is too high PH Off 3S and blink 11 times o n o During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop operation 1 Measure the voltage of position L and N on wiring board XT if the voltage is high than 265VAC turn o...

Страница 74: ...operation the complete unit will stop operation Refer to the malfunction analysis IPM protec tion loss of synchronism protection and overcurrent protection of phase current for compressor 24 IPM protection H5 Off 3s and blink 5 times o o n During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop operation Refer to t...

Страница 75: ... and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop operation Replace outdoor control panel AP1 31 Charging malfunction of capacitor PU Off 3s and blink 17 times o n o n During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop operation Refer ...

Страница 76: ...or the circuit please replace the control panel AP1 36 Limit decrease frequency due to high tempera ture of module EU n n n All loads operate normally while operation frequency for compressor is decreased Discharging after the complete unit is de ener gized for 20 mins check on whether the thermal grease on IPM Module of out door control panel AP1 is sufficient and whether the radiator is inserted...

Страница 77: ...ard Error Code Diagnostics C5 Error Code Start Troubleshooting Is there a jumper cap on the controller Install a matching jumper cap End Troubleshooting Yes No Re insert the jumper cap Is system operating properly No Yes Yes No Is the jumper cap inserted correctly Yes Is system operating properly Replace the jumper cap Is system operating properly Replace the main control board Yes No Yes ...

Страница 78: ...ult Status Possible Causes 1 After the unit is off for 20 minutes check for sufficient thermal grease on IPM module of the outdoor control board and that is seated tightly 2 Faulty control board replace Decrease in Frequency due to over heating of Module Status All units operate with decrease in capacity Decrease frequency due to anti freezing Status All units operate with decrease in capacity 1 P...

Страница 79: ...irty outdoor coil 3 Blockage of airflow 4 Outdoor ambient too high Fault Status Possible Causes 1 Poor air return in indoor unit 2 Fan speed abnormal 3 Indoor coil dirty Antifreeze Protection Status Cooling operation compressor stops while indoor fans runs Heating operation complete unit stops Low Pressure Protection Status Cooling operation compressor stops while indoor fans runs Heating operatio...

Страница 80: ...E4 Error Code Start Troubleshooting Is outdoor temperature above 127 0 F Normal protection outdoor ambient is higher than normal parameters Yes Remove power then restart after 20 minutes Are indoor and outdoor coils clean and free from obstructions Are indoor and outdoor fans operating properly Replace AP1 control board End Troubleshooting Clean Coils 1 Check fan for obstruction 2 Check resistance...

Страница 81: ...top During heating operation complete unit stops 1 Supply voltage is unstable 2 Supply voltage is too low 3 Coils are dirty 4 Improper refrigerant charge Fault Status Possible Causes 1 Refer to troubleshooting procedure next page Communication Failure Status Cooling operation compressor stops while indoor fans runs Heating operation complete unit stops ...

Страница 82: ...lly before the error occurred Check for proper wiring of indoor and outdoor units with unit wiring diagram Yes Correct connections Check factory wiring of indoor and outdoor units Is wiring damaged Repair wiring fault is detected with control board voltage End Troubleshooting Are all connections correct Did this correct the problem Is system operating properly Yes Yes No No No Yes Communication ci...

Страница 83: ...ed and wired correctly No Correct wiring problem Are the wires to the expansion valve connected per the wiring diagram No Resistance between the first 4 pins and the 5th pin should be less than 100 ohms Replace coil of electronic expansion valve Under normal ambient conditions is the resistance of the overload less than 1000 ohms Replace Overload No Is system operating normal Check Refrigerant for...

Страница 84: ... Status Cooling operation compressor stops while indoor fans runs Heating operation complete unit stops 1 Loose or bad contact of outdoor temperature sensor 2 Sensor wire leads not properly connected 3 Faulty sensor check readings with charts 4 Main circuit board defective Outdoor condenser temperature sensor is open or short circuited Status Cooling operation compressor stops while indoor fans ru...

Страница 85: ... Do the temperature sensor readings compare to the resistance table in the Appendix Insert the plug correctly Yes Is problem corrected No Replace sensor or correct wire problem Yes Is problem corrected No Replace the sensor with appropriate part number No Is problem corrected Yes Replace the controller with the same part number End Troubleshooting Yes Yes Sensor Connections ...

Страница 86: ...us Possible Causes Normal function Oil Return in Cooling Decrease frequency due to overcurrent Status All systems operate normal with decrease in capacity 1 Input voltage too low 2 System pressure is too high Decrease frequency due to high discharge air Status All systems operate normal with decrease in capacity 1 Cooling load is too great 2 Outdoor ambient too high 3 Refrigerant undercharge 4 Ele...

Страница 87: ...ed properly Charge Unit according to service manual Repair Connection Is unit operating properly No Does unit startup normally No Is problem corrected Yes Replace the controller AP1 End Troubleshooting Yes Yes Lc Start up Failure Yes Is refrigerant charge correct Replace Compressor No No No Compressor Terminals ...

Страница 88: ...gram Yes No Yes Is problem corrected No Check wiring of the reactor L and PFC capacitor Outdoor Unit Are wires connected proper with no short circuits Are wires connected proper with no short circuits Remove the PFC Capacitor and test resistance of the two terminals Is the resistance about zero Replace the capacitor Yes Is problem corrected Yes No No Disconnect the reactor wires measure the resist...

Страница 89: ... function Defrosting Status Defrosting will occur in heating mode Compressor will operate while indoor fan stops Static Dedusting Protection Overload Protection for Compressor Status During cooling mode compressor will stop indoor fan will run Heating mode all units stop 1 Wiring terminal OVC COMP is loose In normal state the resistance should be less than 1 ohm 2 Refer to E4 troubleshooting proce...

Страница 90: ... procedures IPM Protection Status During cooling mode compressor will stop indoor fan will run Heating mode all units stop Indoor Fan Motor will not run Status Indoor fan Outdoor fan compressor will stop Louver stops at present location 1 Bad connection of DC motor feedback terminal 2 Bad connection of DC motor control end 3 Check Fan Capacitor if in Use 4 Fan motor is stalling check for obstructi...

Страница 91: ...Compressor Replace Control Board AP1 No End Troubleshooting Desynchronizing of compressor Status During cooling mode compressor will stop indoor fan will run Heating mode all units stop 1 Check the resistance of the compressor terminals and connections to the compressor 2 Check for overcharge of refrigerant 3 Check for correct voltage Troubleshooting Procedure for Synchronizing Fault after Unit is...

Страница 92: ...Heating mode all units stop 1 Check the resistance of the compressor terminals and connections to the compressor 2 Check for overcharge of refrigerant 3 Check for correct voltage Troubleshooting Procedure for Synchronizing Fault During Operation Yes Wire per diagram Replace Fan Capacitor C1 Yes Fan Operating Properly Yes Replace Outdoor Fan Motor Yes Improve airflow Yes No Is unit overcharged Repl...

Страница 93: ...door fan will run Heating mode all units stop U9 U1 1 Supply voltage is unstable DC Bus Bar Voltage Unstable Status During cooling mode compressor will stop indoor fan will run Heating mode all units stop U3 1 Replace outdoor control panel AP1 Circuit Board Malfunction on Outdoor Unit Status During cooling mode compressor will stop indoor fan will run Heating mode all units stop U5 1 Supply voltag...

Страница 94: ...easure the voltage on L N on line voltage if it is lower then 200vac correct incoming voltage 2 If AC voltage is normal measure the voltage on the electrolytic capacitor on control panel AP1 if it is normal replace the AP1 board Low DC Bus Bar Voltage Status During cooling mode compressor will stop indoor fan will run Heating mode all units stop PL 1 Refer to H7 troubleshooting Overcurrent Protect...

Страница 95: ... of the electrolytic capacitor Yes Replace AP1 circuit board Is the input AC voltage between 201VAC 250VAC No Shut down power and wait 20 minutes or connect a DC voltmeter to the electrolytic capacitor until the voltage is less than 20 v Voltage higher than 200v Yes End Troubleshooting Yes Correct input AC power supply to unit No Restart the unit is the malfunction corrected No Yes Check the conne...

Страница 96: ...disassembly Before disassembly of indoor unit Step 1 Open the panel Step 2 Loosen the clasps on the filter push the filter inward then pull upward removing the filter Step 1 Remove the axial bushing of the big guide louver Filter Axial bushing 1 Before disassembly of indoor unit 2 Remove filter 3 Remove guide louver ...

Страница 97: ...the groove slightly bend the big guide louver to remove it Step 3 Remove the axial bushing of the small guide louver Step 4 Remove the rotating shaft of the small guide lover from the groove slightly bend the small guide louver to remove it 3 Remove guide louver continued Small guide louver Axial bushing Big guide louver Step 1 Loosen the clamps of the panel to remove panel 4 Remove panel ...

Страница 98: ...rting disassembly Step 2 Remove the screws holding the display 4 Remove panel continued Step 1 Remove the screws fastening the electrical box cover to remove cove Step 2 Remove the screws holding the front cover loosen clamps then remove cover 5 Remove front case Electrical box cover 2 Screw Screws Front panel ...

Страница 99: ... Step 1 Remove the four screws holding the pro tective grille then remove the grille Loosen the clamps holding the swing connector and remove the connecting rod Step 2 Remove the clamps holding the swing fan blade then remove the blade 6 Remove swing fan blade Clamp Swing connecting rod Protective grilles Swing fan blade Clamps ...

Страница 100: ...ure sensor Step 2 Remove the screws holding the bonding wire then remove the wire Step 3 Remove the clamps holding the electrical box cover to remove cover Step 4 Remove all wiring terminals remove all screws holding the box then remove the sub assembly 7 Remove electrical box sub assembly Bonding wire Heat exchanger thermistor Electrical box cover Sub assembly Screw ...

Страница 101: ...e starting disassembly Step 1 Remove the screws holding the pipe clamp Step 2 Remove the screws holding the evapora tor sub assembly slightly reposition the tubing to remove the evaporator 8 Remove evaporator sub assembly Screw Pipe clamp Refrigerant piping Screws Refrigerant piping Evaporator sub assembly ...

Страница 102: ...r power is disconnected before starting disassembly Step 1 Remove the screws holding the up down swing motor to remove motor Step 2 Remove the screws holding the left right swing motor to remove motor 9 Remove indoor fan blade and motor Up down swing motor Left right swing motor ...

Страница 103: ...disassembly Step 3 Remove the screws holding the motor clamp Step 2 Remove the fan blade and motor Step3 Remove the shaft bearing rubber cushion Step 4 Remove the screws holding the fan blade and motor then remove the motor 9 Remove indoor fan blade and motor cont Screw Motor clamp Rubber cushion base Fan blade Motor ...

Страница 104: ...assembly Before disassembly of indoor unit Step 1 Open the panel Step 2 Loosen the clasps on the filter push the filter inward then pull upward removing the filter Step 1 Remove the axial bushings of the big guide louver Filter 1 Before disassembly of indoor unit 2 Remove filter 3 Remove guide louver Axial bushings ...

Страница 105: ...er to remove it Step 3 Remove the axial bushing of the small guide louver Step 4 Remove the rotating shaft of the small guide lover from the groove slightly bend the small guide louver to remove it 3 Remove guide louver continued Small guide louver Axial bushing Big guide louver Step 1 Loosen the clamps holding the panel then remove panel Step 2 Remove the screws holding the display then remove di...

Страница 106: ...is disconnected before starting disassembly Step 1 Remove the screws fastening the electrical box cover to remove cove Step 2 Remove the screws holding the front cover loosen clamps then remove cover 5 Remove front case Screw Electrical box cover 2 Screws Front panel Clamps Grille ...

Страница 107: ...s disconnected before starting disassembly Step 1 Remove the clamps holding the swing fan connecting rod to remove the connecting rod Step 2 Remove the clamps holding the swing fan blade to remove the blade 6 Remove swing fan blade Clamp Swing connecting rod Clamps Swing fan blade ...

Страница 108: ...nsor Step 2 Remove the screws holding the bonding wire then remove the wire Step 3 Remove the clamps holding the electrical box cover to remove cover Step 4 Remove all wiring terminals remove all screws holding the box then remove the sub assembly 7 Remove electrical box sub assembly Heat exchanger thermistor Bonding wire Screw Electrical box cover Sub assembly Screw ...

Страница 109: ...tarting disassembly Step 1 Remove the screws holding the pipe clamp Step 2 Remove the screws holding the evapora tor sub assembly slightly reposition the tubing to remove the evaporator 8 Remove evaporator sub assembly Screw Pipe clamp Refrigerant piping Screws Refrigerant piping Evaporator sub assembly ...

Страница 110: ...ower is disconnected before starting disassembly Step 1 Remove the screws holding the up down swing motor to remove motor Step 2 Remove the screws holding the left right swing motor to remove motor 9 Remove indoor fan blade and motor Up down swing motor Left right swing motor ...

Страница 111: ...assembly Step 3 Remove the screws holding the motor clamp Step 4 Remove the fan blade and motor Step 5 Remove the shaft bearing rubber cushion Step 6 Remove the screws holding the fan blade and motor then remove the motor 9 Remove indoor fan blade and motor cont Screw Motor clamp Rubber cushion base Fan blade Motor ...

Страница 112: ... power is disconnected before starting disassembly Before disassembly of indoor unit Step 1 Open the panel Step 2 Loosen the clasps on the filter push the filter inward then pull upward removing the filter 1 Before disassembly of indoor unit 2 Remove filter Air Filter Hooks ...

Страница 113: ...emove guide louver Disassembly of Indoor Unit 24 000 btuh Warning Wait 10 minutes after power is disconnected before starting disassembly 4 Remove electrical box cover Step 1 Remove the clamps holding the swing fan connecting rod to remove the connecting rod Step 2 Remove the clamps holding the swing fan blade to remove the blade Screw ...

Страница 114: ...ly Step 1 Remove the axial bushing of horizontal louver to remove the guide louver Step 1 Remove the screw cover of the front case then remove the screws Step 2 Remove the front case to separate the front case from the bottom assembly 5 Remove Axial bushing 6 Remove front case Guide louver Hooks Axial bushing Front case ...

Страница 115: ...e temperature sensor Step 2 Remove the screws holding the bonding wire then remove the wire Step 3 Remove the clamps holding the electrical box cover to remove cover Step 4 Remove all wiring terminals remove all screws holding the box then remove the sub assembly 7 Remove electrical box sub assembly Temperature sensor Electrical box cover Sub assembly ...

Страница 116: ...ep 1 Remove the clamps connecting the water tray and chassis then remove the water tray Step 2 Remove the screws holding the tubing clamp then remove the clamp Step 3 Remove the screws holding the evapora tor sub assembly slightly reposition the tubing to remove the evaporator 8 Remove evaporator sub assembly Pipe clamp Screw ...

Страница 117: ... 10 minutes after power is disconnected before starting disassembly Step 4 Turn over the indoor unit and adjust the tubing to the position as shown by the broken line Step 5 Lift up and remove the evaporator 8 Remove evaporator sub assembly cont Evaporator ...

Страница 118: ...assembly Step 1 Remove the two screws holding the step motor and remove the step motor Step 2 Remove the screws holding the cross flow blade and motor Step 3 Remove the motor sub assembly Step 4 Pull out the plug of ring bearing 9 Remove indoor fan blade and motor cont Screws Cross blow blade Motor Ring of bearing ...

Страница 119: ... right side panel 3 Remove handle Remove the screws connecting the handle Top Panel Handle 4 Remove panel and grille Remove the screws holding the panel Remove the screws con necting the panel grille and panel then loosen clamp 5 Remove top cover Remove the screws holding the valve cover 6 Remove handle Remove the screws connecting the left side panel and condenser support board Panel Grille Valve...

Страница 120: ...ff box assembly 10 Remove electric reactor Remove the screws holding the reactor to remove 11 Remove fan motor and support Remove the 4 screws holding the motor remove wire connector then remove the two screws holding the motor support bracket 12 Remove mid isolation board Remove the screws connecting the mid isolation board and con denser assembly Fan Blade Panel Box Cover Electrical box assy Rea...

Страница 121: ...three screws holding the compressor 15 Remove valve assemblies and condensor Remove the screws holding the condenser assembly then remove the screws holding the two valve assemblies 4 way valve Compressor Condenser assy Small valve Large valve Disassembly of Outdoor Unit continued 9 000 12 000 btuh Warning Wait 10 minutes after power is disconnected before starting disassembly ...

Страница 122: ... remaining screws holding the panel pull panel upward loosen the clamp on the right side then rotate panel to the left and remove panel 5 Remove right side panel Remove the screws holding the rear grille remove the screws holding the right side panel and valve support pull it upward then remove Disassembly of Outdoor Unit 18 000 btuh Warning Wait 10 minutes after power is disconnected before start...

Страница 123: ...barrier Carefully remove barrier Disassembly of Outdoor Unit 18 000 btuh Warning Wait 10 minutes after power is disconnected before starting disassembly Fan Blade Electrical Box Fire retardant electrical box 9 Remove isolation sheet Remove screws holding sheet then remove sheet 10 Remove refrigerant valves Properly remove refrigerant Protect valve assembly by wrapping valves with wet cloth unsolde...

Страница 124: ...or then remove the two screws holding the motor support bracket 14 Remove condenser Remove the screws holding the condenser assembly and chassis then lift and remove 12 Remove compressor Remove the three screws holding the compressor Disassembly of Outdoor Unit 18 000 btuh Warning Wait 10 minutes after power is disconnected before starting disassembly Motor support Fan Motor Washers Compressor 4 w...

Страница 125: ...emove the panel 3 Remove back panel Remove crews holding back panel from chassis and motor support Disassembly of Outdoor Unit 24 000 btuh Warning Wait 10 minutes after power is disconnected before starting disassembly 4 Remove grille guard Remove the screws holding the grille guard then remove guard 5 Remove handle Remove the screws holding the handle Top Panel Front side panel Grille Panel Guard...

Страница 126: ...ical box secondary Remove screws holding secondary electrical box then remove box Disassembly of Outdoor Unit continued 24 000 btuh Warning Wait 10 minutes after power is disconnected before starting disassembly 8 Remove left side panel Remove the screws holding the left side panel and chassis then remove panel 9 Remove fan blade Remove the nuts on the blade then pull fan blade off Right Side Pane...

Страница 127: ...sub assembly Remove any refrigerant in system Wrap valve to prevent damage from heat Unsolder the pipes from the valve then remove valves Disassembly of Outdoor Unit continued 24 000 btuh Warning Wait 10 minutes after power is disconnected before starting disassembly 13 Remove compressor Remove bolts from feet of compressor then remove compressor 14 Remove isolation sheet Remove the screws holding...

Страница 128: ...ing support plate then remove plate Disassembly of Outdoor Unit continued 24 000 btuh Warning Wait 10 minutes after power is disconnected before starting disassembly 16 Remove chassis and condenser Pull condenser upward to remove Support Plate Condenser Chassis ...

Страница 129: ... 45 113 0 6 529 97 206 6 1 103 6 21 2 66 88 46 114 8 6 278 98 208 4 1 071 5 23 0 63 46 47 116 6 6 038 99 210 2 1 039 4 24 8 60 23 48 118 4 5 809 100 212 0 1 009 3 26 6 57 18 49 120 2 5 589 101 213 8 0 98 2 28 4 54 31 50 122 0 5 379 102 215 6 0 952 1 30 2 51 59 51 123 8 5 197 103 217 4 0 925 0 32 0 49 02 52 125 6 4 986 104 219 2 0 898 1 33 8 46 6 53 127 4 4 802 105 221 0 0 873 2 35 6 44 31 54 129 2...

Страница 130: ...122 251 6 0 547 19 66 2 19 63 71 159 8 2 523 123 253 4 0 532 20 68 0 18 75 72 161 6 2 439 124 255 2 0 519 21 69 8 17 93 73 163 4 2 358 125 257 0 0 505 22 71 6 17 14 74 165 2 2 28 126 258 8 0 492 23 73 4 16 39 75 167 0 2 206 127 260 6 0 48 24 75 2 15 68 76 168 8 2 133 128 262 4 0 467 25 77 0 15 77 170 6 2 064 129 264 2 0 456 26 78 8 14 36 78 172 4 1 997 130 266 0 0 44 27 80 6 13 74 79 174 2 1 933 1...

Страница 131: ... 94 45 113 0 8 705 97 206 6 1 47 6 21 2 89 17 46 114 8 8 37 98 208 4 1 427 5 23 0 84 61 47 116 6 8 051 99 210 2 1 386 4 24 8 80 31 48 118 4 7 745 100 212 0 1 346 3 26 6 76 24 49 120 2 7 453 101 213 8 1 307 2 28 4 72 41 50 122 0 7 173 102 215 6 1 269 1 30 2 68 79 51 123 8 6 905 103 217 4 1 233 0 32 0 65 37 52 125 6 6 648 104 219 2 1 198 1 33 8 62 13 53 127 4 6 403 105 221 0 1 164 2 35 6 59 08 54 12...

Страница 132: ...9 19 66 2 26 17 71 159 8 3 364 123 253 4 0 71 20 68 0 25 01 72 161 6 3 252 124 255 2 0 692 21 69 8 23 9 73 163 4 3 144 125 257 0 0 674 22 71 6 22 85 74 165 2 3 04 126 258 8 0 658 23 73 4 21 85 75 167 0 2 94 127 260 6 0 64 24 75 2 20 9 76 168 8 2 844 128 262 4 0 623 25 77 0 20 77 170 6 2 752 129 264 2 0 607 26 78 8 19 14 78 172 4 2 663 130 266 0 0 592 27 80 6 18 13 79 174 2 2 577 131 267 8 0 577 28...

Страница 133: ...9 54 89 192 2 4 609 14 6 8 342 8 38 100 4 28 36 90 194 0 4 469 13 8 6 323 9 39 102 2 27 23 91 195 8 4 334 12 10 4 306 2 40 104 0 26 15 92 197 6 4 204 11 12 2 289 6 41 105 8 25 11 93 199 4 4 079 10 14 0 274 42 107 6 24 13 94 201 2 3 958 9 15 8 259 3 43 109 4 23 19 95 203 0 3 841 8 17 6 245 6 44 111 2 22 29 96 204 8 3 728 7 19 4 232 6 45 113 0 21 43 97 206 6 3 619 6 21 2 220 5 46 114 8 20 6 98 208 4...

Страница 134: ...0 93 115 239 0 2 182 12 53 6 89 07 64 147 2 10 54 116 240 8 2 124 13 55 4 84 95 65 149 0 10 18 117 242 6 2 069 14 57 2 81 05 66 150 8 9 827 118 244 4 2 015 15 59 0 77 35 67 152 6 9 489 119 246 2 1 963 16 60 8 73 83 68 154 4 9 165 120 248 0 1 912 17 62 6 70 5 69 156 2 8 854 121 249 8 1 863 18 64 4 67 34 70 158 0 8 555 122 251 6 1 816 19 66 2 64 33 71 159 8 8 268 123 253 4 1 77 20 68 0 61 48 72 161 ...

Страница 135: ...135 Gree Electric Appliances Inc C 2014 Cat No DFS TERRA HP 2SM Version 2 0 ...

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