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Owner's Manual 

Original Instructions 

Air Conditioners 

Air Handlers 

Models: 

TU24-24AADU

TU36-24AADU

 

TU48-24AADU

 

TU60-24AADU

 

Summary of Contents for TU24-24AADU

Page 1: ...Owner s Manual Original Instructions Air Conditioners Air Handlers Models TU24 24AADU TU36 24AADU TU48 24AADU TU60 24AADU ...

Page 2: ...oduct is not to be used for long cut off the power supply please energize and preheat the unit in advance before reusing it 3 Please properly select the model according to actual using environment otherwise it may impact the using convenience 4 This product has gone through strict inspection and operational test before leaving the factory In order to avoid damage due to improper disassembly and in...

Page 3: ...by corrosive gas 4 After verification defects are due to improper operation during transportation of product 5 Operate repair maintain the unit without abiding by instruction manual or related regulations 6 After verification the problem or dispute is caused by the quality specification or performance of parts and components that produced by other manufacturers 7 The damage is caused by natural ca...

Page 4: ...t Safety Instructions 5 4 Installation 8 4 1 Unit Inspection 8 4 2 Location 8 4 3 Piping Work 9 4 4 Condensate Removal 10 4 5 Ductwork 11 4 6 Electric Heater 12 4 7 Electrical Installation 13 5 Installation Check and Trial Run 18 5 1 Checking Items after Installation 18 5 2 Trial Run 19 6 Common Malfunction and Elimination 20 7 Maintenance and Care 21 7 1 Drain Pipe 21 7 2 Notice before Seasonal U...

Page 5: ...possible harm to the environment or human health from uncontrolled waste disposal recycle it responsibly to promote the sustainable reuse of material resources To return your used device please use the return and collection systems or contact the retailer where the product was purchased They can take this product for environmental safe recycling ...

Page 6: ... with the kits or accessories when installing Follow all safety codes Wear safety glasses protective clothing and work gloves Use quenching cloth for brazing operations Have fire extinguisher available Read these instructions thoroughly and follow all warnings or cautions included in literature and attached to the unit Consult local building codes and National Electrical Code NEC for special requi...

Page 7: ...2 Product Introduction 2 1 Product Description The TOSOT air handler offer the perfect combination of superior product quality operating efficiency operating sound levels and value for money The condensing unit uses the environmentally friendly refrigerant R410A which is chlorine free to help prevent damage to the ozone layer 2 2 Optional Accessories Indoor unit accessories No Name Appearance Q ty...

Page 8: ...s 3 2 3 Physical Dimension Unit inch mm Model Dimension W D H A B 21 1 4 540 21 1 4 540 48 1 4 1224 11 5 8 295 20 508 24 3 4 630 21 1 4 540 57 1448 11 5 8 295 20 508 TU24 24AADU TU36 24AADU TU48 24AADU TU60 24AADU ...

Page 9: ...n Optional electric heater kW 2 0 8 3 0 8 4 0 15 5 0 15 Model Motor 230V 60Hz HP FLA 1 2 2 1 1 3 2 Unit mm Model Filter size 490 516 15 525 516 15 TU24 24AADU TU36 24AADU TU48 24AADU TU60 24AADU TU24 24AADU TU36 24AADU TU48 24AADU TU60 24AADU TU24 24AADU TU36 24AADU TU48 24AADU TU60 24AADU ...

Page 10: ...s are taken into account before starting installation Assemble all tools hardware and supplies needed to complete the installation Some items may need to be purchased locally Make sure everything needed to install the product is on hand before starting 3 1 3 Codes Regulations This product is designed and manufactured to comply with national codes It is installer s responsibilities to install the p...

Page 11: ...United States Environmental Protection Agency EPA has issued various regulations regarding the introduction and disposal of refrigerants introduced into this unit Failure to follow these regulations may harm the environment and can lead to the imposition of substantial fines These regulations may vary due to the passage of laws A certified technician must perform the installation and service of th...

Page 12: ...utility rooms or parking areas Carbon monoxide producing devices such as an automobile space heater gas water heater etc should not be operated in enclosed areas such as unventilated garages utility rooms or parking areas because of the danger of carbon monoxide CO poisoning resulting from the exhaust emissions If a furnace or air handler is installed in an enclosed area such as a garage utility r...

Page 13: ...s provided with the condenser Service clearance is to take precedence Allow a minimum of 24 in front of the unit for service clearance When installing in an area directly over a finished ceiling such as an attic an emergency drain pan is required directly under the unit See local and state codes for requirements When installing this unit in an area that may become wet elevate the unit with a sturd...

Page 14: ...External diameter inch Gas pipe Liquid pipe Φ3 4 Φ3 8 4 3 2 Piping Preparation 4 3 2 1 Solder Connection All cut ends are to be round burr free and cleaned Failure to follow this practice increases the chances for refrigerant leakage TU24 24AADU TU36 24AADU TU48 24AADU TU60 24AADU ...

Page 15: ...30 Φ3 8 35 40 Φ1 2 45 50 Φ5 8 60 65 Φ3 4 70 75 Φ7 8 80 85 4 4 Condensate Removal 1 It is not allowed to connect the condensate drain pipe into waste pipe or other pipelines which are likely to produce corrosive or peculiar smell to prevent the smell from entering indoors or corrupt the unit ...

Page 16: ...pical condensate line P trap 4 5 Ductwork This air handler is designed for a complete supply and return ductwork system Do not operate the unit without all ductwork completed Do not operate this product without all ductwork attached Inadequate ductwork that restricts airflow can result in improper performance and compressor or heater failure ductwork is to be constructed in a manner that limits re...

Page 17: ...er Kits Available SN Kit Description Ref air handler use ton 1 21 4216 00 Circuit breaker 8kW heat strip 2 0 3 0 2 21 4217 00 Circuit breaker 15kW heat strip 4 0 5 0 4 6 2 Electric Heater Kits Installation 1 Ensure that all power supply is disconnected prior to installing the heater kit 2 A means of strain relief and conductor protection must be provided at the supply wire entrance into cabinet 3 ...

Page 18: ...r and positions of circuit breakers If circuit breaker is not installed do not knock off the holes otherwise electric shock may occur 9 Replace access panel and check operation 10 Connection of power cords and thermostat wires 4 7 Electrical Installation 4 7 1 Requirement and Notice on Electrical Installation The electrical installation for the air conditioner should observe the following requirem...

Page 19: ...t wires and thermostat must not collide with any metal beam or edge on the ceiling or touch any metal burrs or sharp metal edge around Connect wires correspondingly by referring to the circuit diagram labeled on the unit or electric box Screws must be tightened up Slipped screws must be replaced by specialized flat head screws Please use the power cables that are delivered along with the air condi...

Page 20: ...e g YJV copper cable with insulated PE and PVC sheath is protected by a conduit and is resistant to 90 C in maximum see IEC 60364 5 52 If working condition changes please adjust the specifications according to national standards Specifications of circuit breaker are based on a working condition where the working temperature is 40 C If working condition changes please adjust the specifications acco...

Page 21: ...minal screw 4 Form a proper ring and then put it on the terminal board Use a screwdriver to tighten up the terminal screw 2 For strand wires as shown below 1 Use wire cutters to cut off the wire end and then peel away about 10mm of the insulation layer 2 Use a screwdriver to unscrew the terminal screw on the terminal board 3 Use a round terminal fastener or clamp to fix the round terminal firmly o...

Page 22: ...red on Match the terminal numbers and wire colors with the colors indicated in the indoor unit Wrong wire connection may burn the electrical components Connect the wires firmly to the wiring box Incomplete installation may lead to fire hazard Please use wire clamps to secure the external covers of connecting wires Insulators must be clamped securely otherwise electric leakage may occur Ground wire...

Page 23: ...n connecting the power cords make sure the phase sequence of the power supply matches with the corresponding terminals otherwise the compressor will get reversed and operate abnormally 5 Installation Check and Trial Run 5 1 Checking Items after Installation Items to be checked Problems might happen due to improper installation Check Check if each parts of the unit have been installed reliably The ...

Page 24: ...s mounted firmly It may cause air leak vibration and condensation 5 2 Trial Run 5 2 1 Preparative for Trial Run 1 Never power on the unit until all the installation work has been done 2 All the control circuit and wiring has been connected correctly and soundly Valves on the gas and liquid line should be completely open 3 All the scattered objects should be removed especially metal filing thrum an...

Page 25: ...ct breaker The unit operates but stops immediately Air inlet outlet of indoor unit is blocked Remove obstacles Abnormal cooling or heating Air inlet outlet of indoor unit is blocked Remove obstacles Inappropriate temperature setting Adjust setting at thermostat Doors or windows are opened Close the door or windows Direct sunshine Draw curtain or louver Too much heat source in the room Reduce heat ...

Page 26: ...hen unit is running or after running That s sound for operation of drainage system The unit blows out dust When unit runs after no operation for a long period Dust in indoor unit is blew out The unit emits odor Operating The room odor absorbed by the unit is blew out again Indoor unit still runs after switch off After every indoor unit receive stop signal fan will keep running Indoor fan can be se...

Page 27: ...rom local appointed service center or dealer if necessary 8 After Sales Service In case the air conditioning unit you bought has any quality problem or you have any inquiry please contact the local after sales service agency designated by factory Warranty should meet the following requirements 1 First run of the unit should be operated by professional personnel from factory appointed service cente...

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