Komfovent MOU Series, Installation Manual

Page 1: ...INSTALLATION MANUAL EN MOU ...

Page 2: ...REFRIGERANT PIPING CONNECTION 9 3 1 Notes On Pipe Length and Elevation 9 3 2 Refrigerant Piping Connection Instructions 9 4 PIPING DIAGRAMS 12 5 WIRING 14 5 1 Outdoor Unit Wiring 15 6 AIR EVACUATION 16 6 1 Evacuation Instructions 16 6 2 Note On Adding Refrigerant 17 7 OUTDOOR UNIT SPECIFICATIONS 18 8 AHU KIT SPECIFICATIONS 20 8 1 Introduction 20 8 2 Specification and packing list 20 8 3 System des...

Page 3: ... in this manual Improper in stallation may result in electrical shock short circuit leaks fire or other damage to the equipment Before you install the unit consider strong winds typhoons and earthquakes that might affect your unit and locate it accordingly Failure to do so could cause the equipment to fail After installation ensure there are no refrigerant leaks and that the unit is operat ing prop...

Page 4: ... area must be dry and well ventilated There must be enough room to install the connecting pipes and cables and to access them for main tenance The area must be free of combustible gases and chemicals The pipe length between the outdoor and indoor unit may not exceed the maximum allowable pipe length If possible DO NOT install the unit where it is exposed to direct sunlight If possible make sure th...

Page 5: ...PLQLPXP GLVWDQFH EHWZHHQ WKH RXWGRRU XQLW DQG REVWDFOHV GHVFULEHG LQ WKH LQVWDOODWLRQ FKDUW GRHV QRW PHDQ WKDW WKH VDPH LV DSSOLFDEOH WR WKH VLWXDWLRQ RI DQ DLUWLJKW URRP HDYH RSHQ WZR RI WKH WKUHH GLUHFWLRQV Chart 1 Wall or obstacle Air inlet Air inlet 30 cm 60 cm C Air outlet 200 cm A 30 cm Chart 2 Maintain channel Chart 3 60 cm 1HFHVVDU ZLGWK L ZLWK EROW Deep foundation Fig 2 3 Be sure to remov...

Page 6: ...EN UAB KOMFOVENT we reserve the right to make changes without prior notice MOU_22 10 6 Split Type Outdoor Unit Refer to Fig 3 4 3 5 3 6 3 7 W H Fig 2 4 W H Fig 2 5 A B D Fig 2 6 ...

Page 7: ...OU 48HFN8 952 410 1333 634 403 MOU 48HFN8a 952 415 1333 634 404 MOU 55HFN8 952 410 1333 634 404 MOU 55HFN8a 952 415 1333 634 404 MOU 280 HFN6 1120 1558 528 668 495 MOU 335 HFN6 1120 1558 528 668 495 NOTE The minimum distance between the outdoor unit and walls described in the installation guide does not apply to air tight rooms Be sure to keep the unit unobstructed in at least two of the three dir...

Page 8: ... that will connect to the outdoor unit 2 Insert the drain joint into the hole in the base pan of the unit 3 Rotate the drain joint 90 until it clicks in place facing the front of the unit 4 Connect a drain hose extension not included to the drain joint to redirect water from the unit during heating mode NOTE Make sure the water drains to a safe location where it will not cause water damage or a sl...

Page 9: ...there is refrigerant leakage during the installa tion Leaked refrigerant gas is both toxic and flammable Ensure there is no refrig erant leakage after completing the installation work 3 1 Notes On Pipe Length and Elevation Ensure that the length of the refrigerant pipe the number of bends and the drop height between the indoor and outdoor units meets the requirements 3 2 Refrigerant Piping Connecti...

Page 10: ...burrs from falling into the pipe 2 Using a reamer or deburring tool remove all burrs from the cut section of the pipe Point down Pipe Reamer Fig 3 2 Step 3 Flare pipe ends Proper flaring is essential to achieve an airtight seal 1 After removing burrs from cut pipe seal the ends with PVC tape to prevent foreign materials from entering the pipe 2 Sheath the pipe with insulating material 3 Place flare ...

Page 11: ...e gauge Tightening torque Flare dimension A Unit mm Inch Flare shape Min Max Ø 6 4 14 2 17 2 N m 144 176 kgf cm 8 3 8 7 90 4 45 2 A R0 4 0 8 Fig 3 5 Ø 9 5 32 7 39 9 N m 333 407 kgf cm 12 0 12 4 Ø 12 7 49 5 60 3 N m 504 616 kgf cm 15 4 15 8 Ø 15 9 61 8 75 4 N m 630 770 kgf cm 18 6 19 1 Ø 19 1 97 2 118 6 N m 990 1210 kgf cm 22 9 23 3 Ø 22 109 5 133 7 N m 1117 1364 kgf cm 27 27 3 8 Remove the flaring ...

Page 12: ...es without prior notice MOU_22 10 12 4 PIPING DIAGRAMS MOU 12HFN8a MOU 18HFN8a MOU 24HFN8 MOU 24HFN8a 7 T4 T3 T5 11 12 1 10 5 6 8 6 IN OUT MOU 36HFN8 MOU 36HFN8a MOU 48HFN8 MOU 48HFN8a MOU 55HFN8 MOU 55HFN8a T4 T3 T5 11 12 13 2 1 9 10 4 5 6 7 8 6 IN OUT ...

Page 13: ...l separator 5 Four way valve 6 Heat exchanger 7 Electronic expansion valve EXV 8 Fan 9 Low pressure switch 10 Accumulator 11 Stop valve gas side 12 Stop valve liquid side 13 Oil return capillary 14 AHU kit AHUKZ 02D OUT Outdoor unit IN Indoor device T3 Heat exchanger temperature sensor T4 Outdoor ambient temperature sensor T5 Discharge temperature sensor Tf Heat sink temperature sensor TL Refriger...

Page 14: ...to do so can cause overheating at the connection points fire and electrical shock Ensure that main supply connection is made through a switch that disconnects all poles with contact gap of a least 3 mm 0 118 DO NOT modify the length of the power cord or use an extension cord Connect the outdoor wires before connecting the indoor wires Make sure you ground the unit The grounding wire should be away ...

Page 15: ...ds of signal cable to reveal about 15 cm 5 9 of the wires inside c Strip the insulation from the ends of the wires d Using a wire crimper crimp u lugs on the ends of the wires NOTE While connecting the wires please strictly follow the wiring diagram found inside the electrical box cover 2 Remove the electric cover of the outdoor unit If there is no cover on the outdoor unit disassemble the bolts f...

Page 16: ... valve Charge hose Low pressure valve Vacuum pump Charge hose High pressure valve Pressure gauge Fig 6 1 1 Connect the charge hose of the manifold gauge to service port on the outdoor unit s low pressure valve 2 Connect another charge hose from the manifold gauge to the vacuum pump 3 Open the Low Pressure side of the manifold gauge Keep the High Pressure side closed 4 Turn on the vacuum pump to ev...

Page 17: ...alve caps by hand then tighten it using the proper tool 6 2 Note On Adding Refrigerant Refrigerant charging must be performed after wiring vacuuming and the leak test DO NOT exceed the maximum allowable quantity of refrigerant or overcharge the system Doing so can damage or impact the unit s function Charging with unsuitable substances may cause explosions or accidents Ensure that the appropri ate...

Page 18: ...FN 120 8 2 KTF310D43UMT Compressor capacity W 3255 4385 7649 7600 10010 10010 Refrigerant oil oil charge ml ESTER OIL VG74 310 VG74 440 ESTEL OIL RB74AF 670 VG74 620 VG74 1000 VG74 1000 Outdoor air flow m h 1800 2100 2700 3500 4000 4000 Outdoor noise level sound pressure dB A 56 57 62 60 64 63 Outdoor dimension W D H mm 720 270 495 874 330 554 845 363 702 890 342 673 946 410 810 946 410 810 Outdoo...

Page 19: ... 2 KTQ420D1UMU Compressor capacity W 13675 13700 13675 13700 17320 22170 Refrigerant oil oil charge ml 1400 VG74 1400 1400 VG74 1400 RB75EA FV50S Outdoor air flow m h 7500 7500 7500 7500 11000 11300 Outdoor noise level sound pressure dB A 66 64 66 64 60 61 Outdoor dimension W D H mm 952 415 1333 952 415 1333 952 415 1333 952 415 1333 1120 1558 528 1120 1558 528 Outdoor packing W D H mm 1095 495 14...

Page 20: ...ion Service Manual 8 2 Specification and packing list Model KA8140 KA8141 KA8243 KA8245 AHUKZ 02D Casing Plastic Plastic Metal Dimension h w d 61 100 191 mm 45 100 191 mm 125x345x393 mm Weight 0 4 Kg 0 35 Kg 5 9 kg Operation Temperature Range 25 C 45 C 25 C 45 C 25 C 52 C Operation Humidity Range 40 90 40 90 40 90 Power Supply 230 VAC 1 Phase 50 60Hz 230 VAC 1 Phase 50 60 Hz 230 VAC 1 Phase 50 60 ...

Page 21: ...8141 KA8245 Heat exchanger refrigerant pipes Alarm Defrost cooling heating 0 10 V KA8140 KA814 KA8243 KA8245 L N AHU KIT AHU controller Outdoor unit control signal Power supply 230 V Power supply 3x400 V DX coil Air handling unit Alarm Defrost Operation Cooling Heating Control 0 10 V Start Stop AHUKZ 02D Refrigerant piping Liquid side Liquid side Gas side Gas side Temperature sensors T2 T2A T2B T1...

Page 22: ... LED Def LED W 1 L 2 N S ENC1 TEMP1 CN2 T2 Evaporator Coil Temp Sensor CN1 HEAT COOL ALARM DEFROST 8 4 2 KA8243 KA8245 TEMP1 0 10V PIPETEMP SENSOR AHU KIT OUTDOOR UNIT Digital Input Cooling Mode Digital Input Heating Mode Run led Heat led Cool led Def led ENC1 power setting Power setting Code Model 0 53 71 90 105 140 160 200 1 2 3 4 5 6 F Alarm Defrost Alarm output 5A 250VAC 5A 30VDC Defrost outpu...

Page 23: ...r unit terminal PCB terminal PCB terminal Remark If S1 Q S2 P does not work then change it to S1 P S2 Q TEMP1 Anti frozen protection sensor terminal for KA8140 KA8141 KA8245 Please know that temp sensor must be placed at middle of heat changer 0 10V Analog input terminal to control outdoor unit capacity Capacity steps 0 0 5 V 0 unit stopped 0 5 1 5 V 10 capacity LED display digit 1 1 5 2 5 V 20 ca...

Page 24: ...ill not work at one indoor to one outdoor connection Knob selection Indoor unit capacity Knob selection Indoor unit capacity 0 2 0 kW unit 6 7 1 kW unit 1 2 6 kW unit 7 9 0 kW unit 2 3 2kW unit 8 10 5 kW unit 3 3 5 kW unit 9 14 0 kW unit 4 5 3 kW unit A F 16 0 kW unit 5 7 1 kW unit ENC1 KA8243 KA8245 knob to select condensing unit model Knob selection Condensing unit Knob selection Condensing unit...

Page 25: ...1 L2 L3 N GND P Q E XS1 XS3 XS5 XS7 XS9 TB2 T1 T2 T2A TA Temperature sensors AHU controller board EXV XS11 3 x 400 VAC 50 60 Hz 0 10V 0 10V COM Alarm Defrost Run COM Fan Heat Cool ON OFF ENC1 settings 0 28 kW MOU 280 HFN6 1 33 5 kW MOU 335 HFN6 SW4 settings SW4 ON 1 2 3 4 0 10 V capacity regulation 0 0 5 V 0 outdoor unit stopped 0 5 1 5 V 10 power 1 5 2 5 V 20 power 2 5 3 5 V 30 power 3 5 4 5 V 40...

Page 26: ...ler board 0 10V 0 10V 0 10V 0 10V COM COM COM Heating Heating Cooling Cooling 8 5 2 KA8140 KA8141 connection to C6M 15 16 34 35 36 AHU KIT KA8140 KA8141 C6M controller board 0 10V 0 10V 0 10V 0 10V COM COM COM Heating Heating Cooling Cooling 8 5 3 KA8140 KA8141 connection to C5 AHU KIT KA8140 KA8141 C5 controller board 0 10V 0 10V 0 10V 0 10V COM Heating Cooling 15 17 43 44 46 COM COM Heating Cool...

Page 27: ...10V 0 10V COM Heating Cooling 1 3 31 33 34 COM COM Heating Cooling 8 5 5 KA8243 KA8245 connection to C5 AHU KIT KA8243 KA8245 0 10V 0 10V 0 10V 0 10V COM COM Heating Heating Cooling Cooling C5 Controller board 15 17 43 44 46 8 5 6 KA8243 KA8245 connection to C5 zone AHU KIT KA8243 KA8245 0 10V 0 10V 0 10V 0 10V COM COM Heating Heating Cooling Cooling C5 Zone module 1 3 31 33 34 ...

Page 28: ...4 46 C5 controller board Cooling Heating COM 0 10V 0 10V AHUKZ 02D board COM Alarm Defrost Run Vi Vi COM Fan Heat Cool ON OFF OUTPUTS INPUTS 8 5 8 AHUKZ 02D connection to C5 additional zone CN17 CN18 CN62 CN61 CN32 CN9 1 3 31 33 34 C5 additional zone module Cooling Heating COM 0 10V 0 10V AHUKZ 02D board COM Alarm Defrost Run Vi Vi COM Fan Heat Cool ON OFF OUTPUTS INPUTS ...

Page 29: ...1 outdoor unit ambient temperature sensor T4 malfunction F2 outdoor unit condenser pipe temperature sensor T3 malfunction F3 outdoor unit compressor discharge temperature sensor TP malfunction F4 outdoor unit EEPROM parameter error F5 outdoor unit fan speed is operating outside of the normal range F6 outdoor unit T2b temperature sensor malfunction P0 IPM malfunction or IGBT over strong current pro...

Page 30: ...r tranformers Or the signal wire Is too long Remove interference or add magnet ring on power wire Check whether the signal wire is shield cable or whether the shield cable is earthing Adopt shield cable shield cable earthing Yes Yes No No No Yes Check whether the wire is correct Polarity P to P Q to Q E to E comect the connection Replace the signal wire pull out and insert back Check whther the si...

Page 31: ...od Yes correct the connections Measure the resistance walue Of the sensor via Appendix Is it normal NO Replace the sensor Yes Replace the indoor PCB 8 6 3 Ed outdoor unit malfunction Whether the out door Main board has error Displayed Yes Yes No power off then restart the unit 2 minutes later if the outdoor main board displays error code several Minutes later Refer to corresponding Solving steps ...

Page 32: ... the right to make changes without prior notice MOU_22 10 32 8 7 Dimensions 8 7 1 KA8140 KA8141 191 5 174 5 149 136 5 9 25 98 8 85 8 56 36 7 6 8 55 6 61 8 7 2 KA8243 KA8245 191 5 174 5 149 136 5 9 25 98 8 85 8 56 36 7 6 8 39 6 45 ...

Page 33: ...UAB KOMFOVENT we reserve the right to make changes without prior notice MOU_22 10 33 8 7 3 AHUKZ 02D 250 344 2 15 58 5 308 2 360 392 5 R6 R3 65 65 135 65 95 124 8 93 36 Φ24 Φ39 ...

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