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USUAL SYMPTOMS 

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Is the compressor wiring correct? 

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Is the stop time of the compressor enough? 

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Is the compressor damaged? 

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Is the refrigerant charged too much? 

7.5.5- 

Failure start up malfunction 

(AP1 BELOW IS THE CONTROL BOARD OF OUTDOOR UNIT) 

 

Summary of Contents for COND-09-01

Page 1: ...www dettson ca INSTALLER SERVICE TECHNICIAN Use the information in this manual for the installation servicing and keep the document near the furnace for future reference HOMEOWNER Please keep this ma...

Page 2: ...o COOL mode and adjust the set point to a lower value than the actual room temperature 5 The furnace and the outdoor unit should start within 5 minutes Modulating furnace 1 Connect the RJ 11 wire betw...

Page 3: ...6 10 2 Air purging and leakage test 26 6 10 3 Outdoor unit condensate drainage 26 6 10 4 Check after installation and test operation 26 6 10 5 Operation test 26 7 TROUBLESHOOTING 27 7 1 Precautions b...

Page 4: ...cuit board 14 Figure 17 18K Circuit board 15 Figure 18 24K Circuit board 15 Figure 19 Installation schematic and clearances 22 Figure 20 Multiposition configurations 23 Figure 21 Splashguard without f...

Page 5: ...ng diagram and all the instruction when wiring Have the unit adequately grounded in accordance with the local electric codes Have all wiring connected tightly Loose connection may lead to overheating...

Page 6: ...37 3x25 4x16 5 37 3x25 4x16 5 40 5x29 5x18 0 42 8x33 7x19 2 cm 94 74x64 52x41 91 94 74x64 52x41 91 102 87x74 93x45 72 108 71x85 60x48 77 lb 86 87 1 110 3 154 3 lb 90 4 91 5 116 9 165 3 oz 45 9 45 9 56...

Page 7: ...7 7 1 4 OPERATION CHARATERISTIC CURVES Figure 1 9K Operation characteristic curves Figure 2 12K Operation characteristics curves Figure 3 18 24K Operation characteristics curves...

Page 8: ...8 8 1 5 CAPACITY VARIATION RATIO ACCORDING TO TEMPERATURE Figure 4 9 12K Capacity ratio vs outdoor temperature Figure 5 18 24K Capacity ratio vs outdoor temperature...

Page 9: ...9 9 1 6 NOISE CRITERIA CURVE TABLES Figure 6 9K Noise curves Figure 7 12K Noise curves Figure 8 18 24K Noise curve...

Page 10: ...10 10 2 CONSTRUCTION VIEWS Figure 9 9 12K dimensions...

Page 11: ...11 11 Figure 10 18K dimensions Figure 11 24K dimensions...

Page 12: ...M Figure 12 refrigerant system diagram Properly insulate ALL refrigerant tubing from outdoor units to the interior cooling coil to prevent water dripping 4 SCHEMATIC DIAGRAMS 4 1 ELECTRICAL DIAGRAMS F...

Page 13: ...13 13 Figure 14 18K Electrical diagram Figure 15 24K Electrical diagram...

Page 14: ...14 14 4 2 PRINTED CIRCUIT BOARDS Figure 16 9 12K Circuit board...

Page 15: ...15 15 Figure 17 18K Circuit board Figure 18 24K Circuit board...

Page 16: ...1 3 DIP1 4 Balance point OFF OFF OFF OFF Heat pump heat only ON OFF OFF OFF 10 F 23 C OFF ON OFF OFF 5 F 21 C ON ON OFF OFF 0 F 18 C OFF OFF ON OFF 5 F 15 C ON OFF ON OFF 10 F 12 C OFF ON ON OFF 15 F...

Page 17: ...prohibited when total current TECEHU 8V the unit operates by decreasing frequency When total current TECEHU 9V the compressor stops operation and indoor fan will stop operation after 30s 3 Common Pro...

Page 18: ...ot be detected Blow residual heat In heating mode when temperature reaches the set temperature the compressor and outdoor fan will stop When the unit is in heating mode and the compressor and indoor f...

Page 19: ...turning the thermostat to OFF or cooling mode During operation if operation time of compressor is over the times of stop operation because of overload protection will be cleared If turn the thermostat...

Page 20: ...witch to fan mode times of malfunction is eliminated immediately 5 3 2 16 Overload protection of compressor 1 If it detected that the overload switch for compressor is open for 3min successively the c...

Page 21: ...o not expose the unit to direct sunlight nor strong wind 5 Make sure that the outdoor unit is installed in accordance with the installation instructions and is convenient for maintenance and repair 6...

Page 22: ...ontal pull through installations In the center opening of vertical drain pan a metal Inlet Air Restrictor is factory installed and is required for horizontal applications It may be removed for vertica...

Page 23: ...23 23 Figure 20 Multiposition configurations Figure 21 Splashguard without front slope...

Page 24: ...ls are equipped with multiple drain connections Determine the drain connections to be used and note the difference between the primary green and secondary red openings Drain plugs are provided for all...

Page 25: ...to a lower value than the actual room temperature 5 The furnace and the outdoor unit should start within 5 minutes Modulating furnace 1 Connect the RJ 11 wire between the interface and the air handler...

Page 26: ...oor drain connector in a 98in hole on the base plate and attach the drain hose to the connector so that the waste water formed in the outdoor unit can be drained out The hole diameter 0 98 must be plu...

Page 27: ...27 7 TROUBLESHOOTING...

Page 28: ...28 Verify if the temperature sensor is exposed to the sunlight...

Page 29: ...29 29...

Page 30: ...30...

Page 31: ...irectly touching any of the circuit parts without first turning OFF the power NOTE A large capacity electrolytic capacitor is used in the outdoor unit controller inverter Therefore if the power supply...

Page 32: ...rly Make sure the connections are made as per Figure 13 Figure 14 and Figure 15 Cycle the power of both units Yellow When communicating properly with the communicating furnace this LED should be blink...

Page 33: ...links for 7 times Overload protection Blinks for 6 times Overcurrent protection for the complete unit Blinks for 5 times Module current protection IPM protection Blinks or 4 times Over low voltage pro...

Page 34: ...34 34...

Page 35: ...indoor fans operates During heating operation all loads stop Please refer to the malfunction analysis discharge protection overload Overcurrent protection During operation the complete unit stops 1 S...

Page 36: ...oad Decrease frequency due to high air discharge All loads operate normally while operation frequency for compressor is decreased Overload or temperature is too high Refrigerant is insufficient Malfun...

Page 37: ...erate normally while operation frequency for compressor is decreased Refer to the malfunction analysis overload high temperature resistant Failure to start up During operation the complete unit stops...

Page 38: ...o high temperature of module During operation the complete unit stops Discharging after the complete unit is de energized for 20 minutes check whether the thermal grease on IPM module of outdoor contr...

Page 39: ...39 39 7 5 TROUBLESHOOTING FLOW CHART 7 5 1 Communication malfunction...

Page 40: ...on AP1 BELOW IS THE CONTROL BOARD OF OUTDOOR UNIT USUAL SYMPTOMS Check if the voltage of L and N terminal of wiring board is between 210AC 250AC using multimeter Is the inductor L well connected Is th...

Page 41: ...tage between L N of wiring board XT by DC voltage meter Is the coil resistance of compressor normal Is the compressor coil insulating to copper pipe correctly Is the work load of unit too high Is the...

Page 42: ...nt temperature in a normal range Is the indoor and outdoor fans are running normal How is the radiating environment of the indoor and outdoor unit 7 5 4 Anti high temperature overload protection AP1 B...

Page 43: ...Is the compressor wiring correct Is the stop time of the compressor enough Is the compressor damaged Is the refrigerant charged too much 7 5 5 Failure start up malfunction AP1 BELOW IS THE CONTROL BO...

Page 44: ...44 44 USUAL SYMPTOMS Is the system pressure over high Is the supply voltage under low 7 5 6 Compressor synchronism AP1 BELOW IS THE CONTROL BOARD OF OUTDOOR UNIT...

Page 45: ...electronic expansion valve connected correctly Is the expansion valve damaged Is the refrigerant leaking Is the overload protector damaged 7 5 7 Overload and discharge malfunction AP1 BELOW IS THE CO...

Page 46: ...46 46 7 5 8 PFC correction for power factor malfunction AP1 BELOW IS THE CONTROL BOARD OF OUTDOOR UNIT Check if the inductor L of outdoor unit and PFC capacity are damaged...

Page 47: ...the indoor and the outdoor are connected correctly and not damaged Is the communication circuit of the indoor mainboard is damaged Is the communication circuit of the outdoor mainboard AP1 damaged 7...

Page 48: ...AL PROCEDURE OF OUTDOOR UNIT WARNING Be sure to wait for a minimum of 10 minutes after turning off all power supplier before disassembly NOTE Electric heater band is not shown below Models COND 09 01...

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Page 54: ...54 54 WARNING Be sure to wait for a minimum of 10 minutes after turning off all power supplier before disassembly Models COND 18 01...

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Page 60: ...60 60 WARNING Be sure to wait for a minimum of 10 minutes after turning off all power supplier before disassembly Models COND 24 01...

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Page 67: ...67 67 9 COMPONENTS AND REPLACEMENT PARTS 9 1 EXPLODED VUE 9 12K...

Page 68: ...b assy COND 07133674 1 17 Cut off valve sub assy COND 07133204 1 18 4 way valve assy COND 03123870 1 19 Magnet coil COND 430004002 1 20 Inductor COND 43130184 1 21 Electric expansion valve sub assy CO...

Page 69: ...69 69 9 3 EXPLODED VUE 18K...

Page 70: ...1 18 Wiring clamp COND 26115004 1 19 Temperature sensor COND 3900030901 1 20 Capacitor CBB65 COND 33000065 1 21 Capacitor clamp sub assy COND 01413098 1 22 Handle COND 26235254 1 23 Cut off valve sub...

Page 71: ...71 71 9 5 EXPLODED VUE 24K...

Page 72: ...sub assy COND 01715020P 1 15 Cut off valve COND 07130239 1 16 Valve cover N A N A 17 Cut off valve COND 07133157 1 18 Big handle COND 26235001 1 19 Magnet coil COND 4300040033 1 20 Capacitor COND 330...

Page 73: ...7 75 2 94 237 114 0 904 28 2 72 41 99 37 12 169 76 2 844 239 115 0 88 30 1 68 79 100 38 11 52 171 77 2 752 241 116 0 856 32 0 65 37 102 39 11 06 172 78 2 663 243 117 0 833 34 1 62 13 104 40 10 62 174...

Page 74: ...7 75 2 206 237 114 0 678 28 2 54 31 99 37 9 003 169 76 2 133 239 115 0 66 30 1 51 59 100 38 8 642 171 77 2 064 241 116 0 642 32 0 49 02 102 39 8 297 172 78 1 997 243 117 0 625 34 1 46 6 104 40 7 967 1...

Page 75: ...9 79 26 47 08 149 65 10 18 219 104 2 955 10 12 306 2 81 27 45 07 151 66 9 827 221 105 2 872 12 11 289 6 82 28 43 16 153 67 9 489 223 106 2 792 14 10 274 84 29 41 34 154 68 9 165 225 107 2 715 16 9 25...

Page 76: ...Conditioning Institute of Canada and the Air Conditioning Contractors of America Failure to do so voids this warranty F Unauthorized Installation of Accessory Equipment Dettson Industries inc authori...

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