background image

19 

19 

 

5.3.2.6 

Control of outdoor fan  

(1)  When turn off the unit by thermostat,  stop operation because 

of protection or stop operation after reaching the temperature 
point, outdoor can stop operation only after the compressor is 
stopped for 1min; 

(2)  Under fan mode: outdoor fan stops operation. 
(3)  Defrosting-starting: enter into defrosting. Outdoor fan stops 

operation after compressor stops for 50s. 

(4)  Defrosting-ending: quit defrosting. When the compressor 

stops operation, the outdoor fan operates. 

 

5.3.2.7 

Control of 4-way valve 

(1)  4-way valve status under cooling and fan modes: OFF; 
(2)  When the unit turned on and operated in heating mode, the 

4-way valve is energized immediately; 

(3)  If turn off unit or  switch to other mode in heating mode,  the 

4-way valve is de-energized after the compressor stops for 
2min; 

(4)  When the unit is turned off because of each protection, the 4-

way valve is de-energized after 4min delayed; 

(5)  Defrosting-starting: enter into defrosting. After the 

compressor stops for 50s, the 4-way valve will be de-
energized; 

(6)  Defrosting-ending: quit defrosting. After the compressor 

stops for 50s, the 4-way valve is energized. 

5.3.2.8 

Freeze protection 

(1)  Under cooling mode, if it is detected that  

T

 \

<

0°C 

(32°F) for 3min successively, the unit will stop operation due 
to freeze protection. If 

T

5 \ Z Z` 

<

T

 \

, and compressor stops for 3min, the complete unit 

can resume operation; 

(2)  Under cooling mode, if  

T

 \

<

6°C (42.8°F), the 

operation frequency  of compressor may increase or 
decrease; 

(3)  If the unit is stopped because of freeze protection for 6 times 

successively, it cannot resume operation automatically and 
the malfunction will be displayed continuously, which can 
only be resumed by turning thermostat to OFF on heat 
setting. During operation, if operation time of compressor is 
over, the times of stop operation because of freeze protection 
will be cleared. If turn off the unit or switch to fan/heating 
mode, malfunction and times of malfunction is eliminated 
immediately. 
 

5.3.2.9 

Overload protection 

(1)  Overload protection under cooling mode: if 

T

a5    . 5[

≤ T

\ \

, the unit stops 

operation because of overload in cooling; if 

T

\ \

<

T

a5 5Z]\b . 5[

 and the compressor has 

stopped for 3min, the complete unit can resume operation. 

(2)  Under cooling mode, if  

T

a5 5Z]\b . 5[

T

\ \

, the frequency of compressor may increase or 

decrease; 

(3)  Overload protection under heating mode: if 

T

a5   . c[

≤ T

 \

, the unit stops 

operation because of overload in heating; if   

T

 \

<

T

a5 5 Z]\b . c[

 and the compressor has 

stopped for 3min, the complete unit can resume operation. 

(4)  Under heating mode, if  

T

a5 5 Z]\b . c[

T

 \

, operation frequency of compressor may increase 

or decrease;  

(5)  If the unit is stopped because of overload protection for 6 

times successively, it cannot resume operation automatically 
and the malfunction will be displayed continuously, which can 

only be resumed by 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 to OFF or 
switch to fan/cooling mode, malfunction and times of 
malfunction is eliminated immediately. 

 

5.3.2.10  Discharge temperature protection of compressor 

(1)  If 

T

  .Z c[

≤ T

c[

, the unit stops 

operation because of discharge protection; if 

T

c[

<

T

5 Z]\b .Z c[

 and compressor has stopped for 

3 min, the complete unit can resume operation; 

(2)  If 

T

5  Z]\b Z c[

≤ T

c[

, operation 

frequency of compressor may decrease or increase; 

(3)  If the unit is stopped because of discharge protection of 

compressor for 6 times successively, it cannot resume 
operation automatically,   it can only be resumed by pressing 
ON/OFF button. During operation, if operation time of 
compressor is over, the times of stop operation because of 
discharge protection will be cleared. If turn off the unit, or 
switch to fan mode, malfunction and times of malfunction is 
eliminated immediately. 

 

5.3.2.11  Current protection function 

(1)  If 13A

I

d \

, operation frequency of compressor may 

decrease or increase; 

(2)  If 17A

I

d \

, the system will stop operation because of 

overcurrent; the complete unit can resume operation only 
after the compressor stops for 3min; 

(3)  If the unit is stopped because of overcurrent for 6 times 

successively, it cannot resume operation automatically, it can 
only be resumed by turning thermostat to OFF setting. During 
operation, if operation time of compressor is over, the times 
of stop operation because of overcurrent protection will be 
cleared. 
 

5.3.2.12  Voltage drop protection 

During operation of compressor, if the voltage is decreasing quickly, the 
system may stop operation and voltage drop malfunction is caused. 
3min later, the system will be restarted up automatically. 

5.3.2.13  Communication malfunction 

When it has not received the correct signal from indoor unit from 3min, 
the unit will stop operation; communication malfunction is eliminated 
and compressor has stopped for 3min, the complete unit can resume 
operation. 

5.3.2.14  IPM (Intelligent Power Model) protection 

After compressor is turned on, if the overcurrent happens for IPM, or 
control voltage is too low because of abnormal causes, IPM will detect 
module protection signal immediately. Once it detected the module 
protection signal, the unit will stop operation because of module 
protection. If module protection is resumed and compressor has 
stopped for 3min, the complete unit will resume operation. If the unit is 
stopped because of module protection for 3 times successively, the unit 
cannot resume operation automatically unless thermostat is turned to 
OFF setting. If the operation time for compressor is over, the times of 
stop operation because of module protection will be cleared. 

5.3.2.15  Overheat protection of module 

(1)  If 

T

5  Z]\b[ .Z \5

≤ T

\5

, the 

operation frequency of compressor may decrease or 
increase; 

(2)  If  

T

  \ Z \5

≤ T

\5

, the system will 

stop operation for protection. If  

T

\5

<

Содержание COND-09-01

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

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

Страница 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...

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

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

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 27: ...27 7 TROUBLESHOOTING...

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

Страница 29: ...29 29...

Страница 30: ...30...

Страница 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...

Страница 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...

Страница 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...

Страница 34: ...34 34...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 49: ...49 49...

Страница 50: ...50 50...

Страница 51: ...51 51...

Страница 52: ...52 52...

Страница 53: ...53 53...

Страница 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...

Страница 55: ...55 55...

Страница 56: ...56 56...

Страница 57: ...57 57...

Страница 58: ...58 58...

Страница 59: ...59 59...

Страница 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...

Страница 61: ...61 61...

Страница 62: ...62 62...

Страница 63: ...63 63...

Страница 64: ...64 64...

Страница 65: ...65 65...

Страница 66: ...66 66...

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

Страница 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...

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

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Отзывы: