Unique CU Series Service Manual And Spare Parts List Download Page 89

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Indoor Unit Assembly Parts

Part No.

CU500-C

CU500-A

CU480-C

CU480-A

CU450-C

CU450-A

Qty.

Per

Unit

Part Description

No.
in
Fig.

N/A

4022582

N/A

4022691

N/A

4022691

Centrifugal Fan –
Right (CU -A)

N/A

4022584

N/A

4022696

N/A

4022696

Centrifugal Fan –
Left (CU -A)

4021118

N/A

4021106

N/A

4021104

N/A

Centrifugal Fan –
Right (CU -C)

4021119

N/A

4021107

N/A

4021105

N/A

Centrifugal Fan –
Left (CU -C)

1106MF12

Fitting – Flare

1106MF78

1106MF34

Fitting – Flare

100955B22

Plastic Joint

13010043

Plastic Fastening
Screw

15010001

plastic handle

1505001

15040072

15040076

15040072

Duralast filter 1/2"

15040083

15040082

15040079

5010510

5010414

5010427

Evaporator Heat
Exchanger

10050070

Fan Connector
Cable

904TS11

Indoor Unit Coil
Sensor Cable

Indoor Unit Assembly Parts

Part No.

CU800-C

CU800-A

CU700-C

CU700-A

CU600-C

CU600-A

Qty.

Per

Unit

Part Description

No.
in
Fig.

N/A

4021104

N/A

4021101

N/A

4021100

Centrifugal Fan –
Right (CU -A)

N/A

4021105

N/A

4021105

N/A

4021101

Centrifugal Fan –
Left (CU -A)

4021120

N/A

4021120

N/A

4021118

N/A

Centrifugal Fan –
Right (CU -C)

4021121

N/A

4021121

N/A

4021119

N/A

Centrifugal Fan –
Left (CU -C)

1106MF12

Fitting – Flare

1106MF78

Fitting – Flare

110955B22

Plastic Joint

13010043

Plastic Fastening
Screw

15050001

plastic handle

15040095

15040094

15040091

15040090

15040087

15040086

Duralast filter 1/2"

50104E5

50104E6

5010471

5010472

5010423

5010473

Evaporator Heat
Exchanger

10050070

Fan Connector
Cable

904TS11

Indoor Unit Coil
Sensor Cable

Summary of Contents for CU Series

Page 1: ...Service Manual And Spare Parts List And ...

Page 2: ......

Page 3: ... 2 CUP 600 800 26 3 3 CUP 1000 1400 28 4 REFRIGERATION CYCLE DIAGRAMS 4 1 Typical Refrigeration Cycle 31 4 2 Accessories Table 32 5 AIR FLOW CURVES 5 1 Air flow Curves Fans 145 220 30W and DD 7 7 90W 33 5 2 Air flow Curves Fans DD 7 7 147W and DD 7 10 147W 34 5 3 Air flow Curves Fans DD 9 9 245W and DD 9 9 370W 35 5 4 Air flow Curves Fans DD 9 10 370W and DD 10 10 370W 36 5 5 Air flow Curves Fans ...

Page 4: ...its 52 8 3 Wiring Diagrams Indoor and Outdoor Units 52 8 4 Electrical Connections Scheme 55 8 5 Wiring the Outdoor Unit 56 8 6 Wiring the Indoor Unit 58 8 7 Finishing the Job 59 9 TROUBLESHOOTING GUIDE 9 1 General Troubleshooting 60 9 2 Poor Cooling Troubleshooting 63 9 3 Poor Heating Troubleshooting 64 10 OPERATION INSTRUCTIONS 10 1 RT 101 Infra Red Remote Control 65 10 2 M101P 67 10 3 ETN1000 68...

Page 5: ...s Danger In plannig the location of the equipment take into consideration any areas that could present an unsafe situation Avoid power lines that could come into contact with the equipment Warning Electrical Safety To avoid electrical shock place equipment in a safe area use guards around control panels and always shut off and lock out control boxes when working on equipment In selecting electrica...

Page 6: ...iv NOTES ...

Page 7: ...geration cycle diagrams for the various models Please read this entire Service Manual and pay particular attention to safety Your failure to read this manual is a misuse of the product which could result in personal injury or property damage The manufacturer reserves the right to change product specifications without prior notice 1 1 Product Overview Unique CU Air Conditioners are the perfect choi...

Page 8: ...Outdoor Fan capacitor wherever applicable REFRIGERANT Type and Quantity of refrigerant charge Gr CAPACITY W Cooling and heating capacity in Watts according to ISO 5151 standard CAPACITY BTU H Cooling and heating capacity in BTU Hr according to ISO 5151 standard INPUT POWER Power consumption in cooling and heating modes watts AMP Current consumption in cooling and heating modes Amp WEIGHT Kg Weight...

Page 9: ...lay Fuse Amp C 10 C 16 C 16 R407c Model CU150 CU200 CU250 Watt 4173 5401 7004 Cooling capacity Btu h 14240 18430 23900 Watt 4250 5490 7090 Heating capacity Btu h 14500 18730 24192 Power Consumption cooling Watt 1715 2155 2680 Power Consumption Heating Watt 1490 1950 2410 Operating Current cooling Heating Amp 8 0 7 1 10 2 9 4 12 7 11 4 E E R Energy Efficiency Ratio Cooling 8 3 8 6 8 91 C O P Coeffi...

Page 10: ...6 Fittings Type Flare Flare Flare Expansion Device Capillary Tube Capillary Tube Capillary Tube Axial Fan Diameter No mm 500 1 500 1 500 1 Outdoor Fan Motor KW 0 15 0 15 0 15 Motor Capacitor µF Volt 5 400 5 400 5 400 Speed High Low R P M 900 700 900 700 900 700 Face Area m ft 0 34 4 1 0 34 4 1 0 34 4 1 Tube Diameter Inch 3 8 3 8 3 8 Rows Deep 2 3 3 Coil Fins Spacing Per Inch 12 12 12 Net Weight Kg...

Page 11: ... note 2 mm H2O 3 5 3 6 4 6 Indoor Fan Motor KW 0 037 0 093 0 0745 0 25 0 0745 0 25 Number of Fans 2 1 2 1 2 1 Fan type and Model Centrifugal 180x145 Centrifugal DD7 7 90W Centrifugal 220x145 Centrifugal DD9 9 245W Centrifugal 220x145 Centrifugal DD9 9 245W Full Load Amperage Amp 0 6 1 3 0 6 1 1 0 6 1 1 Motor Capacitor µF Volt 3 400 4 400 3 400 8 400 3 400 8 400 Face Area m ft 0 13 1 4 0 13 1 4 0 1...

Page 12: ... 6 NOTES ...

Page 13: ... 20 or 3xC 10 C 25 or 3xC 16 R407c Model CU300 CU350 CU400 Watt 8602 9730 11137 Cooling capacity Btu h 29350 33200 38000 Watt 8440 9710 10980 Heating capacity Btu h 28800 33130 37500 Power Consumption cooling Watt 3200 3460 4380 Power Consumption Heating Watt 2800 3195 4070 Operating Current cooling Heating Amp 15 1 13 2 16 3 15 1 20 7 19 2 E E R Energy Efficiency Ratio Cooling 9 1 9 76 8 67 C O P...

Page 14: ...7 Fittings Type Flare Flare Flare Expansion Device Capillary Tube Capillary Tube Capillary Tube Axial Fan Diameter No mm 500 1 500 1 500 1 Outdoor Fan Motor KW 0 15 0 15 0 15 Motor Capacitor µF Volt 5 400 5 400 5 400 Speed High Low R P M 900 700 900 700 900 700 Face Area m ft 0 44 4 75 0 44 4 75 0 44 4 75 Tube Diameter Inch 3 8 3 8 3 8 Rows Deep 3 3 4 Coil Fins Spacing Per Inch 12 12 12 Net Weight...

Page 15: ...te 2 mm H2O 5 7 5 7 6 7 Indoor Fan Motor KW 0 15 0 25 0 15 0 25 2x0 093 0 37 Number of Fans 2 1 2 1 2 1 Fan type and Model Centrifugal DD7 7 147W Centrifugal DD9 9 245W Centrifugal DD7 7 147W Centrifugal DD9 9 245W Centrifugal DD7 7 90W Centrifugal DD9 9 370W Full Load Amperage Amp 1 2 1 1 1 2 1 1 2x1 3 2 6 Motor Capacitor µF Volt 5 400 8 400 5 400 8 400 2x4 400 8 400 Face Area m ft 0 21 2 27 0 20...

Page 16: ... 10 NOTES ...

Page 17: ...3xC 16 R407c Model CU450 CU480 CU500 Watt 12896 13745 14390 Cooling capacity Btu h 44000 46900 49100 Watt 12820 13700 14920 Heating capacity Btu h 43740 46750 50910 Power Consumption cooling Watt 5000 5300 5700 Power Consumption Heating Watt 4700 4750 5250 Operating Current cooling Heating See note 3 Amp 8 3 7 8 8 8 7 9 9 4 8 8 E E R Energy Efficiency Ratio Cooling 8 8 8 84 8 6 C O P Coefficient O...

Page 18: ...0 Fittings Type Flare Flare Flare Expansion Device Capillary Tube Capillary Tube Capillary Tube Axial Fan Diameter No mm 500 1 500 1 550 1 Outdoor Fan Motor KW 0 15 0 15 0 37 Motor Capacitor µF Volt 5 400 5 400 10 400 Speed High Low R P M 900 700 900 700 900 700 Face Area m ft 0 51 5 5 0 72 7 8 0 72 7 8 Tube Diameter Inch 3 8 3 8 3 8 Rows Deep 4 3 4 Coil Fins Spacing Per Inch 12 12 12 Net Weight K...

Page 19: ... H2O 6 6 6 6 6 13 Indoor Fan Motor KW 2x0 093 0 37 2x0 093 0 37 2x0 15 0 56 Number of Fans 2 1 2 1 2 1 Fan type and Model Centrifugal DD7 7 90W Centrifugal DD9 9 370W Centrifugal DD7 7 90W Centrifugal DD9 10 370W Centrifugal DD7 10 147W Centrifugal DD10 10 550W Full Load Amperage Amp 2x1 3 1 6 2x1 3 1 6 2x1 1 3 6 Motor Capacitor µF Volt 2x4 400 8 400 2x4 400 8 400 2x6 400 10 400 Face Area m ft 0 2...

Page 20: ... 14 NOTES ...

Page 21: ... 3xC 32 R407c Model CU600 CU700 CU800 Watt 17291 20515 24180 Cooling capacity Btu h 59000 70000 82500 Watt 17410 20650 24200 Heating capacity Btu h 59400 70500 82570 Power Consumption cooling Watt 7500 9300 9800 Power Consumption Heating Watt 7300 8000 9400 Operating Current cooling Heating See note 3 Amp 12 6 12 2 15 6 13 4 16 4 15 8 E E R Energy Efficiency Ratio Cooling 7 9 7 52 8 4 C O P Coeffi...

Page 22: ...54 54 Fittings Type Flare Flare Flare Expansion Device Capillary tube or expansion valve Axial Fan Diameter No mm 500 2 550 2 550 2 Outdoor Fan Motor KW 0 15 0 37 0 37 Motor Capacitor µF Volt 5 400 10 400 10 400 Speed High Low R P M 900 700 900 700 900 700 Face Area m ft 0 85 9 18 0 85 9 18 0 98 10 58 Tube Diameter Inch 3 8 3 8 3 8 Rows Deep 3 4 4 Coil Fins Spacing Per Inch 12 12 12 Net Weight Kg ...

Page 23: ...m H2O 6 13 6 18 6 8 Indoor Fan Motor KW 2x0 25 0 56 0 37 0 56 0 37 0 56 Number of Fans 2 1 2 1 2 1 Fan type and Model Centrifugal DD 9 9 245W Centrifugal DD10 10 550W Centrifugal DD 9 9 370W Centrifugal DD12 12 550W Centrifugal DD 9 9 370W Centrifugal DD12 12 550W Full Load Amperage Amp 2x1 1 3 6 2x2 6 4 6 2x2 6 4 6 Motor Capacitor µF Volt 2x8 400 10 400 2x8 400 15 400 2x8 400 15 400 Face Area m f...

Page 24: ... 18 NOTES ...

Page 25: ... 3xC 40 R407c Model CU1000 CU1200 CU1400 Watt 27842 34583 41324 Cooling capacity Btu h 95000 118000 141000 Watt 28000 34500 41500 Heating capacity Btu h 95540 117700 141600 Power Consumption cooling Watt 11300 13800 16700 Power Consumption Heating Watt 11100 13000 15800 Operating Current cooling Heating See note 3 Amp 19 1 18 6 23 2 21 8 28 0 26 5 E E R Energy Efficiency Ratio Cooling 8 4 8 55 8 4...

Page 26: ...5 Fittings Type Flare Soldering Soldering Expansion Device Expansion valve Expansion valve Expansion valve Axial Fan Diameter No mm 630 2 630 2 630 2 Outdoor Fan Motor KW 2x0 66 2x0 66 2x0 66 Motor Capacitor µF Volt N A N A N A Speed High Low R P M 900 700 900 700 900 700 Face Area m ft 1 82 19 7 1 82 19 7 1 82 19 7 Tube Diameter Inch 3 8 3 8 3 8 Rows Deep 2 3 4 Coil Fins Spacing Per Inch 12 12 12...

Page 27: ...e note 2 mm H2O 14 14 20 18 Indoor Fan Motor KW 2x0 37 0 56 2x0 56 2x0 56 Number of Fans 2 1 2 2 Fan Type and Model Centrifugal DD10 10 370W Centrifugal DD12 12 550W Centrifugal DD12 12 550W Centrifugal DD12 12 550W Full Load Amperage Amp 2x2 6 4 6 2x4 6 2x4 6 Motor Capacitor µF V 2x8 400 15 400 2x15 400 15 400 Face Area m ft 0 59 6 37 0 59 6 37 0 75 8 1 0 89 9 61 Tube Diameter Inch 3 8 3 8 3 8 3 ...

Page 28: ... 22 NOTES ...

Page 29: ... 23 3 CU Series Packaged Units Designed for outdoor installation UNIQUE CU Packaged Units designated CUP feature eleven sizes of self contained pre assembled and fully wired air conditioners ...

Page 30: ...rgy Efficiency Ratio Cooling 9 76 8 67 8 8 8 84 8 6 C O P Coefficient Of Performance Heating 3 0 2 7 2 72 2 88 2 84 Moisture Removal Lit h 4 2 4 8 5 9 6 7 6 9 Power Supply V Ph Hz 230V 1Ph 50Hz or 400V 3Ph 50Hz 400V 3Ph 50Hz Time Delay Fuse Amp C 20 or 3xC 10 C 25 or 3xC 16 3xC 16 3xC 16 3xC 16 R22 Model CUP350 CUP400 CUP450 CUP480 CUP500 Watt 9965 11284 13189 14009 14654 Cooling capacity Btu h 34...

Page 31: ...00 700 900 700 Face Area m ft 0 44 4 75 0 44 4 75 0 51 5 5 0 72 7 8 0 72 7 8 Tube Diameter Inch 3 8 3 8 3 8 3 8 3 8 Rows Deep 3 4 4 3 4 Condenser Coil Fins Spacing Per Inch 12 12 12 12 12 E V A P O R A T O R S I D E m 3 h 1870 2295 2550 2720 2975 Air Flow at High speed cfm 1100 1350 1500 1600 1750 High Fan Speed R P M 900 900 900 900 900 Number of Speeds 3 3 3 3 3 Net Static Pressure see note 2 mm...

Page 32: ... Heating Amp 14 2 14 18 17 6 20 19 3 E E R Energy Efficiency Ratio Cooling 9 2 9 0 9 5 C O P Coefficient Of Performance Heating 2 9 3 0 2 9 Moisture Removal Lit h 7 8 8 8 10 2 Power Supply V Ph Hz 400V 3Ph 50Hz Time Delay Fuse Amp 3xC 20 3xC 25 3xC 32 R407C Model CUP600 CUP700 CUP800 Watt 17291 20515 24180 Cooling capacity Btu h 59000 70000 82500 Watt 17410 20650 24200 Heating capacity Btu h 59400...

Page 33: ...900 700 Face Area m ft 0 85 9 18 0 85 9 18 0 98 10 58 Tube Diameter Inch 3 8 3 8 3 8 Rows Deep 3 4 4 Condenser Coil Fins Spacing Per Inch 12 12 12 E V A P O R A T O R S I D E m 3 h 3400 4080 4760 Air Flow at High speed cfm 2000 2400 2800 High Fan Speed R P M 900 900 900 Number of Speeds 3 3 3 Net Static Pressure see note 2 mm H2O 13 18 8 Number of Fans 1 1 1 Fan Type and Model Centrifugal DD10 10 ...

Page 34: ...Heating Amp 19 9 19 6 23 1 22 8 26 8 26 4 E E R Energy Efficiency Ratio Cooling 9 1 8 9 9 0 C O P Coefficient Of Performance Heating 2 9 2 8 2 8 Moisture Removal Lit h 11 7 14 6 16 Power Supply V Ph Hz 400V 3Ph 50Hz Time Delay Fuse Amp 3xC 32 3xC 40 3xC 40 R407C Model CUP1000 CUP1200 CUP1400 Watt 27842 34583 41324 Cooling capacity Btu h 95000 118000 141000 Watt 28000 34500 41500 Heating capacity B...

Page 35: ...0 900 700 900 700 Face Area m ft 1 84 19 87 1 86 20 1 1 87 20 2 Tube Diameter Inch 3 8 3 8 3 8 Rows Deep 2 3 4 Condenser Coil Fins Spacing Per Inch 12 12 12 E V A P O R A T O R S I D E m 3 h 5440 6800 8160 Air Flow at High speed cfm 3200 4000 4800 High Fan Speed R P M 900 900 900 Number of Speeds 3 3 3 Net Static Pressure see note 2 mm H2O 14 20 18 Number of Fans 2 2 2 Fan Type and Model Centrifug...

Page 36: ... 30 NOTES ...

Page 37: ... 31 4 1 Typical Refrigeration Cycle ...

Page 38: ...tional Optional Optional Suction Accumulator N A Capillary Tube N A Expansion Device Thermal Exp Valve Optional Optional Optional Bi Flow Filter Drier Optional see note Optional see note Optional see note RV 4 Way Reversing Valve Note Bi Flow Filter Drier is optional for models CU 150 through CU 800 which are equipped with thermal expansion valve It is not available for units equipped with capilla...

Page 39: ... 33 5 1 Air flow Curves Fans 145 220 30W and DD 7 7 90W ...

Page 40: ... 34 5 2 Air flow Curves Fans DD 7 7 147W and DD 7 10 147W ...

Page 41: ... 35 5 3 Air flow Curves Fans DD 9 9 245W and DD 9 9 370W ...

Page 42: ... 36 5 4 Air flow Curves Fans DD 9 10 370W and DD 9 9 370W ...

Page 43: ... 37 5 5 Air flow Curves Fans DD 10 10 550W and DD 12 12 550W ...

Page 44: ... 38 NOTES ...

Page 45: ... 39 6 1 Electrical Wiring Diagram CU150 400 1PH ...

Page 46: ... 40 6 2 Electrical Wiring Diagram CU150 480 3PH ...

Page 47: ... 41 6 3 Electrical Wiring Diagram CU500 800 3PH ...

Page 48: ... 42 6 4 Electrical Wiring Diagram CU1000 1400 3PH ...

Page 49: ...stallation must be performed in accordance with manufacturer s specifications using only approved tubing original cables and original accessories 7 2 Standard Accessories Fig 7 1 7 3 Electrical Requirements The electrical installation must be performed only by qualified personnel in accordance with local regulations The air conditioner must be directly connected to an appropriate power supply Use ...

Page 50: ...ir Diffusers 7 4 1 Indoor and Outdoor Unit Location The indoor and outdoor units should be installed as close to each other as possible Do not exceed the tubing length and height differences as shown in the accompanying table See Fig 7 3 for additional information Fig 7 3 Model Maximum Tubing Length Maximum Height Difference Between Units CU150 30 m 10 m CU200 CU350 30 m 12 m CU400 CU500 35 m 13 m...

Page 51: ...ors The unit must be installed at least 5 cm above a solid surface Make sure that the unit is level Fasten the unit legs to the base Place the rubber absorbtion cushions supplied under the unit s legs to prevent vibrations For all models hanging installation is allowed Install only on special properly designed platform or concrete slab A drainage tube can be connected to the outdoor unit to remove...

Page 52: ...be to the outdoor unit 7 6 1 Installing the Indoor Unit on Hard Surface Stick four rubber absorbtion cushions on the four corners of the base as shown in Fig 7 5 Select the installation location according to the above mentioned factors and guidelines 7 6 2 Installing the Indoor Unit Directly On the Ceiling Select the installation location according to the above mentioned factors and guidelines Mar...

Page 53: ...e opening on the inside Route the drainage hose at the bottom of the hole Fill in the remaining gap with an appropriate sealant Fig 7 6 7 7 Air Duct Installation The air ducts should be constructed of 0 7 0 8 mm galvanized metal sheet To obtain optimal results duct cross sections connections elbows and branches must be properly designed We highly recommend seeking for expert advice on this matter ...

Page 54: ...l void the manufacturer s warranty Do not open service valves and do not remove protecting caps from tubing ends until all the connections are made Take care to avoid links or flattening of the tubing Bend tubing with special bending tools to avoid the formation of sharp bends Keep the tubing free of dirt sand moisture and other contaminants to avoid damaging the refrigerant system Tubing Length u...

Page 55: ...essure gauge and operate the pump for 30 minutes Make sure that full vacuum is reached and disconnect the vacuum pump Open the liquid line valve small valve with an Allen Wrench for the purpose Open the suction line valve large valve using an Allen Wrench for the purpose The outdoor unit is supplied with sufficient refrigerant for 10 meters tubing Add refrigerant and oil according to the table for...

Page 56: ... refrigerant and oil if tubing exceeds 10 m For each 1 m tubing add Tubing Line Refrigerant gr Oil gr 3 8 1 2 12 8 3 8 5 8 15 10 1 2 5 8 20 13 1 2 3 4 25 16 1 2 7 8 30 20 5 8 7 8 32 20 5 8 1 35 23 3 4 1 40 27 ...

Page 57: ... ETN1000 Wall mounted thermostat Features local temperature readout and adjustment on off pushbuttons mode adjustment fan adjustment and I R receiving Optional Supply MIGA2400 Programmable wall mounted thermostat Same features as ETN1000 but with additional weekly programming capabilities Without I R receiving Optional supply Important The control wires between the main control box and the wall mo...

Page 58: ...room wall mounted units For each unit repeat the following procedure Separate the front panel from the back panel by depressing the tongue lock located in the upper part of the unit Push the back panel out Line the back panel up against the wall or against any other flat surface onto which it is to be mounted Drill holes and use appropriate fixing screws to fasten the panel to its location Complet...

Page 59: ... 53 ...

Page 60: ... 54 ...

Page 61: ... 55 8 4 Electrical Wiring Scheme ...

Page 62: ...d the suitable wiring diagrams Connect the outdoor sensor cable making sure the connector is properly inserted Secure the inter unit electrical cable to the outdoor unit using the clamps Make sure that all screws and wires are properly fastened Loose wires or connections can cause damage and present a fire hazard Reassemble the side cover 8 5 1 Outdoor Unit Terminal Box CUC 150 400 1 8 5 2 Outdoor...

Page 63: ... 57 C N N N N L1 L2 L3 S T T T2 T2 RVF1 8 5 3 Outdoor Unit Terminal Box CUC 600 800 8 5 4 Outdoor Unit Terminal Box CUC 1000 1400 ...

Page 64: ...the terminals in accordance with the color coding and the suitable wiring diagrams Make sure that all connections are properly inserted and fastened Make sure that all screws and wires are properly fastened Loose wires or connections can cause damage and present a fire hazard Reassemble the side cover 8 6 1 Indoor Unit Terminal Box CUE 150A 800A and 150C 1000C ...

Page 65: ...e hole through which the cables and tubing are passing Connect the air conditioner to the power source Check all air conditioning operating modes Consult the user manual 8 7 1 Check List Follow this check list Do all the remote control buttons function properly Is the I R receiver working properly Does the drainage work Are there unusual noises or vibrations during operation Is noise drain water o...

Page 66: ...tton on R C 4 Make sure that noting blocking the R C transmission to the A C display 5 Repair or replace wall socket 2 Only indoor fan ventilator works although cooling or heating is desired 1 The selected mode is on Fan Only or on Cool when heating is desired 2 Temperature is set to a value which is too high in Cool mode 3 Faulty outdoor fan motor or other fault that cause compressor overload pro...

Page 67: ...ET button 6 No air supply at indoor unit compressor operates 1 Indoor fan motor is blocked or turns slowly 2 Indoor fan motor capacitor is burnt 3 Indoor fan motor winding is burnt 4 In Heat mode delayed start for indoor fan motor 5 Clogged air filters 1 Check voltage Repair wiring if necessary Check indoor fan wheel if tight on motor shaft Tighten if necessary 2 Replace indoor fan motor capacitor...

Page 68: ... is not running at all 1 Failure in motor capacitor 2 No voltage out of P C B assembly for fan motor 3 Motor winding failure check resistance 1 Replace the capacitor 2 Replace the P C B assembly 3 Replace the fan motor 12 Outdoor fan is not running at all 1 Power supply failure 2 Fan motor relays failure 3 Fan contactor failure 4 Motor winding failure check resistance 1 Check power supply 2 Replac...

Page 69: ...defective 8 Service valves are not fully open 1 Charge refrigerant gas 2 Recharge gas 3 Repair leakage 4 Replace strainer 5 Replace 4 Way valve 6 Replace solenoid 7 Replace compressor 8 Open the valves full 2 Air circulation failure Air filter is clogged Clean air filter 3 Installation failure 1 Location of the indoor or the outdoor units is not according to the instructions 2 Refrigerant tubes be...

Page 70: ...lly open 1 Charge refrigerant gas 2 Recharge gas 3 Repair leakage 4 Replace strainer 5 Replace 4 Way valve 6 Replace solenoid 7 Replace compressor 8 Open the valves full 2 Air circulation failure Air filter is clogged Clean air filter 3 Installation failure 1 Location of the indoor or the outdoor units is not according to the instructions 2 Refrigerant tubes between the units are not installed acc...

Page 71: ...Send To activate the air conditioner and or update information press On Send button Mode Press MODE button to change between COOL HEAT AUTO CHANGE A and FAN ONLY Press ON SEND button to send the information to the thermostat Fan Press fan button and choose between HIGH MEDIUM LOW or AUTO SPEED Auto Speed The fan speed changes according to the temperature difference between Set temperature and Actu...

Page 72: ...ar flashing in the display Press SELECT button the hours will flash Press to increase hours or press to decrease hours Press SELECT button the minutes will flash Press to increase minutes or press to decrease minutes Stop time Press SELECT button PROGRAM START will appear flashing in the display Press SELECT button the hours will flash Press to increase hours or press to decrease hours Press SELEC...

Page 73: ...ver On Off Press On Off button to start or to stop the air conditioner Can be used when the remote control transmitter is not available The air conditioner starts at its last preset position On LED Lights when A C unit is activated Timer LED Lights when ON OFF Timer is activated ...

Page 74: ...etween COOL HEAT COOL HEAT Automatic cool heat change over or FAN fan only Fan Press fan button and choose between Fan high medium low or Auto speed all together Auto speed the fan speed change according to the difference in the temperature between Set temperature and Actual ambient temperature The greater the difference between set and actual the faster the fan speed Auto fan Press and hold fan b...

Page 75: ...ings ON OFF Press ON OFF button to activate the thermostat Green led will light For OFF press again the green led will flash when compressor time delay protection is ON MODE Press the MODE button to switch between 4 modes FAN Fan only COOL HEAT and HEAT COOL automatic Heat cool change over ...

Page 76: ...ll be indicated by lines near the heating icon SPEED Fan speed selector 1 Low speed 2 Medium speed 3 High speed and 4 Auto speed AUTO SPEED The fan speed changes according to the temperature difference between Set temperature and Actual ambient temperature The greater is the difference between set and actual the faster is the fan speed AUTO FAN In Auto fan mode the fan stops whenever the compresso...

Page 77: ...ll appear To start when the air conditioner is in OFF press PROG adjust the hours using the set buttons Press PROG and adjust the minutes using the set buttons Press PROG to return to normal display START will appear ADJUSTING THE TEMPERATURE In normal display mode press set buttons to set the desire temperature RESET In case that the air conditioner stoped and the FAULT led turned on pressing RES...

Page 78: ... Time Press PROG Hours indication will flash Use the set button to adjust the hours Press PROG Minutes indication will flash Use the set button to adjust the minutes B Second Program Repeat above mentioned steps Press PROG for several times to return to normal display mode NOTE The display returns to normal mode by itself if not pressed for 13 seconds Saturday and Sunday programming Repeat above m...

Page 79: ...cedure presetting can be reviewed and modified Switching between Manual and Program operation While unit is on green ON led lights press and hold down for 3 seconds the PROG button While in PROG mode On Off button switches from Manual to Program operation Timer Override While in Program operation any remote control timer settings will be override ...

Page 80: ... 74 NOTES ...

Page 81: ... 75 12d 11 10 1a 2 3 4 5 6 7 8 9 1b 1c 12c 12a 12b 11 SPARE PARTS LIST 11 1 Outdoor Unit Refrigerant System Components ...

Page 82: ...lenoid Valve 4 1104HGB1 1104HGB1 1104HGB1 Hot Gas Bypass 6 1105DA53 1105DA53 1105DA53 Suction Controlling Pressure Switch 7 1103MF03 1103MF02 1103MF02 Muffler 8 14020001 14020001 14020001 Refrigerant Filling Valve 9 1106BG34 1106BG58 1106BG58 3 Way Service Valve 10 1106BG12 1106BG38 1106BG38 3 Way Service Valve 11 050100XX 05010035 05010035 Condenser Heat Exchanger 12b CU450 CU480 CU500 Outdoor Un...

Page 83: ...alve 10 1106BG12 1106BG12 1106BG12 3 Way Service Valve 11 050104D9 05010454 05010036 Condenser Heat Exchanger 12b CU1000 CU1200 CU1400 Outdoor Unit Refrigerant System Components Parts No CU1400 CU1200 CU1000 Part Description No in Figure 0602ZR19 0604M160 0604M125 Compressor 1a 11020118 11020078 11020078 Suction Accumulator 2 PCUC100020 PCUC100020 PCUC100020 Suction Accumulator Support 3 11014518 ...

Page 84: ... 78 2 4 5 6 7 8 9 1a 3 1b 11 2 Outdoor Unit Electrical Components ...

Page 85: ...or capacitor 5 1001G7LO 1001G7LO 1001G7LO Contactor 1Ph 6 1001CI13 1001CI09 1001CI09 Contactor 3Ph 7 CU450 CU480 CU500 Outdoor Unit Electrical Components Part No CU500 CU480 CU450 Part Description No in Figure 0404O500 0404O500 0404O500 Axial Fan 1a 03014011 03015010 03015010 Fan motor 2 1505K500 1505K500 1505K500 Fan protector 3 100310MF 100305MF 100305MF Fan motor capacitor 4 1001CI15 1001CI12 1...

Page 86: ...CU1200 CU1000 Part Description No in Figure 405Z063 405Z063 405Z063 Axial Fan with motor and protector 1b 1001AB26 1001AB26 1001AB26 Contactor 6 1001AB09 1001AB09 1001AB09 Contactor 7 1001G7L0 1001G7L0 1001G7L0 Normally Open Relay 8 1001RSTC 1001RSTC 1001RSTC RST Controller 9 ...

Page 87: ... 81 6 5 4 3 2 1 7 9 10 11 12 13 8 C ONLY A ONLY A ONLY 11 3 Indoor Unit Assembly ...

Page 88: ...070 Fan Connector Cable 12 904T511 904T511 904T511 904T511 904T511 904T511 Indoor Unit Coil Sensor Cable 13 Indoor Unit Assembly Parts Part No CU400 C CU400 A CU350 C CU350 A CU300 C CU300 A Qty Per Unit Part Description No in Fig N A 4022691 N A 401M7x7 N A 401M7x7 Centrifugal Fan Impeller CU A 1 N A 4022696 N A 401B7x7 N A 401B7x7 Centrifugal Fan Casing CU A 2 4021104 N A 4021100 N A 4021100 N A...

Page 89: ...an Connector Cable 12 904TS11 904TS11 904TS11 904TS11 904TS11 904TS11 Indoor Unit Coil Sensor Cable 13 Indoor Unit Assembly Parts Part No CU800 C CU800 A CU700 C CU700 A CU600 C CU600 A Qty Per Unit Part Description No in Fig N A 4021104 N A 4021101 N A 4021100 Centrifugal Fan Right CU A 1 N A 4021105 N A 4021105 N A 4021101 Centrifugal Fan Left CU A 2 4021120 N A 4021120 N A 4021118 N A Centrifug...

Page 90: ... 4 1106MF78 1106MF58 1106MF12 1106MF12 1 Fitting Flare 5 N A N A 1106MF78 1106MF78 1 Fitting Flare 6 1009SB22 1009SB22 1009SB22 1009SB22 1 Plastic Joint 7 13010043 13010043 13010043 13010043 4 Plastic Fastening Screw 8 15050001 15050001 15050001 15050001 2 plastic handle 9 15040053 15040052 15040050 15040051 1 Duralast filter 1 2 10 50104E8 5010486 50104C8 5010489 1 Evaporator Heat Exchanger 11 10...

Page 91: ...re air cannot be directed sideways Includes two heat exchanger coils Fan faces upwards CUC CT Suitable for locations where air cannot be directed sideways Includes one heat exchanger coil Fan faces upwards CUC AT Suitable for locations where air cannot be directed sideways Includes one heat exchanger coil and two fans facing upwards CUC SP Split outdoor condensing unit Compressor separated from th...

Page 92: ...Suitable for locations where condensing unit cannot be placed on floor but can be placed above floor level Includes two fans front air discharge CUC SQF Extra silent unit Includes three low speed fans and enlarged heat exchanger ...

Page 93: ...nd one fan between them Back side of evaporator can be installed next to wall CUE AD Evaporator with one heat exchanger and two fans pushing air sideways CUE AVF Narrow vertical evaporator Front air suction with dual fan Front air discharge CUE AVT Narrow vertical evaporator Front air suction with dual fan Top air discharge CUE AVFS Vertical evaporator Free bottom side air suction with dual fan Fr...

Page 94: ...row vertical evaporator Front air suction and front air discharge CUE CVT Narrow vertical evaporator Front air suction and top side air discharge CUE CVFS Vertical evaporator Free bottom side air suction Front air discharge through heat exchanger CUE CVTS Vertical evaporator Free bottom side air suction The air is discharged from top side through heat exchanger ...

Page 95: ...o 800 CUP AB Return air suction at upper part of front side Dual fan air distribution at lower part of front side CUP CB Return air suction at upper part of front side Single fan air distribution at lower part of front side CUP AF Standard configuration with dual fan front air discharge CUP CF Standard configuration with single fan front air discharge ...

Page 96: ... 90 Model Features CUP AT Front side air suction with dual fan top air discharge CUP CT Front side air suction with single fan top air discharge ...

Page 97: ...conditions 3 Ph CU150 700 87 1 Ph CU150 400 88 MIG 101 1H1 Heat Pump features 1 stage Cooling and 1 stage Heating Additional 2nd stage heating by electrical heating element The heating element is installed next to the indoor evaporator s coil Or optionally 2nd stage heating by hot water coil installed next to the indoor evaporator s coil In this case the hot water is provided by the end user and t...

Page 98: ...ing element attached to the indoor evaporator s coil An external thermostat set point controlled monitors the ambient temperature Whenever heating is required the compressor stops and the heating device are activated 3 Ph CU150 1400 91 1 Ph CU150 400 92 MIG 101 H2 Heat Pump features 1 stage Cooling only 2 heating stages are provided by electrical heating elements installed in the indoor unit cabin...

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Page 108: ...nique Engineering Air Conditioning Moshav Nehalim 84 P O B 142 Nehalim 49950 ISRAEL Tel 972 3 9087555 Fax 972 3 9087444 http www unique eng co il e mail unique unique eng co il CU 00 SM EN V01 02 04 R03 ...

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Summary of Contents for CU Series

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Unique CU Series, Service Manual And Spare Parts List, Page: 89 / 108

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