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SERVICE MANUAL
●
Wall Mounted Type
ON/OFF
Series
Model No.HSU-24LPA03/R2(T3&T4)
1U24WZ5QAM
WARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or
cautions to advise non-technical individuals of potential dangers in attempting to service a product.
●
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or
Repair the product or products dealt with in this service information by anyone else could result in serious injury or death
2017 (Qingdao Haier Air Conditioner General corp. , Ltd)
All rights reserved. Unauthorized copying and distribution is a violation of law
Date
2022-11-30
Version V1
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Related Manuals for Haier HSU-24LPA03/R2
Summary of Contents for Haier HSU-24LPA03/R2
- Page 1 Repair the product or products dealt with in this service information by anyone else could result in serious injury or death 2017 (Qingdao Haier Air Conditioner General corp. , Ltd) All rights reserved. Unauthorized copying and distribution is a violation of law...
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Page 2: Table Of Contents
Contents Contents 1. Introduction ....................1 2. Specifications..................7 3. Sensors list ....................8 4. Piping diagrams ..................9 5. Operation range ..................10 6. Wiring Diagram ..................11 7. Functions and Control................8. Dimensional drawings................18 9. Conter of gravity .................. 18. 10. Service Diagnosis ................. 11. -
Page 3: Introduction
Introduction 1 Introduction 1.1 Model name explanation 220-230V 50HZ/1ph Fixed frequency Cool Cooling only & R 410A refrigerant Version number Middle number Platform of outdoor units: W (W platform) Nominal cooling capacity (24000BTU/h) Type of outdoor unit : U (normal type) ●... - Page 4 Introduction 1.2 Safety Cautions Be sure to read the following safety cautions before conducting repair work. The caution items are classified into “Warning” and “Caution”. The “Warning” items are especially important since they can lead to death or serious injury if they are not followed closely. The “Caution” items can also lead to serious accidents under some conditions if they are not followed.
- Page 5 Introduction Warning Do not repair the electrical components with wet hands . Working on the equipment with wet hands can cause an electrical shock Do not clean the air conditioner by splashing water. Washing the unit with water can cause an electrical shock.
- Page 6 Introduction Warning Be sure to use an exclusive power circuit for the equipment, and follow the technical standards related to the electrical equipment, the internal wiring regulations and the instruction manual for installation when conducting electrical work. Insufficient power circuit capacity and improper electrical work can cause an electrical shock or fire. Be sure to use the specified cable to connect between the indoor and outdoor units.
- Page 7 Introduction 1.2.3 Inspection after Repair Warning Check to make sure that the power cable plug is not dirty or loose, then insert the plug into a power outlet all the way. If the plug has dust or loose connection, it can cause an electrical shock or fire. If the power cable and lead wires have scratches or deteriorated, be sure to replace them.
- Page 8 Introduction 1.2.4 Using Icons Icons are used to attract the attention of the reader to specific information. The meaning of each icon is described in the table below: 1.2.5 Using Icons List Icon Type of Information Description A “note” provides information that is not indispensable, but may Note Note nevertheless be valuable to the reader, such as tips and tricks.
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Page 9: Specifications
Specification 2 Specifications NOMINAL DISTRIBUTION SYSTEM VOLTAGE Phase Frequency Voltage 220-240 NOMINAL CAPACITY and NOMINAL INPUT cooling 6.741(T1)/5.862(T3) Capacity rated Btu/h 23000(T1)/20000(T3) Power Consumption(Rated) 1.95(T1)/2.35(T3) SEER/SCOP 3.458(T1)/2.491(T3) Moisture Removal m³/h TECHNICAL SPECIFICATIONS-UNIT Dimensions WxHxD 890×705×340 Packaged WxHxD 1046×780×460 Dimensions Weight Gross weight Sound pr essure Sound level... -
Page 10: Sensors List
Specification TECHNICAL SPECIFICATIONS-OTHERS R410A Refrigerant type Refrigerant charge Refrigerant Maximum allowable distance circuit between indoor an outdoor Maximum allowable level difference Refrigerant control Capillary Φ6.35*0.65 liquid Piping connections Φ15.88*0.8 (external diameter) drain Heat insulation type Both liquid and Gas pipes Max. -
Page 11: Piping Diagrams
Pinping diagrams 4 Pinping diagrams 15.88CuT 6.35 CuT... -
Page 12: Operation Range
Operation range 5 Operation range... -
Page 13: Wiring Diagram
Wiring diagrams 6. Wiring Diagram Outdoor... - Page 19 Functions and control limit of -minute delay excluding the first time), and high wind, cooling, and air door is open.The indoor fan motor runs, running indicator lights up, compressor relay and the one of outdoor fan motor is closed 7.1.9.2 During test run: The prevention of freezing of evaporator doesn’t work.
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Page 20: Dimensional Drawings
Dimensinal drawings 8.Dimensional drawings unit:mm 968.5 9.Center of gravity unit:mm... -
Page 21: Service Diagnosis
Connector Wiri ng Diagr am 10.Service Diagnosis 10.1 Caution for Diagnosis The operation lamp flashes when any of the following errors is detected. 1.When a protection device of the indoor or outdoor unit is activated or when the thermistor malfunctions, disabling equipment operation. -
Page 22: Remove Procedure
Removal of procedure 11 Remove Procedure 11.1 Removal of Outdoor panel Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1.Remove the panels Loosen the 8 screws and lift the top panel. - Page 23 Removal of procedure Step Procedure Points Loosen the screws of the panel, pull and remove the front panel.
- Page 24 Removal of procedure 11.2 Removal of Electrical Box Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points Remove the fixing screws, Than lift the electrical box.
- Page 25 Removal of procedure 11.3 Removal of Fan and Fan Motor Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points Put the head wire through the back of Loosen fixing motor...
- Page 26 Removal of procedure Step Procedure Points Loosen fixing screws and remove the fan motor.
- Page 27 Removal of procedure 11.4 Removal of fan motor bracket and partition Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points Loosen fixing screws and remove the fan motor bracket.
- Page 28 Removal of procedure Step Procedure Points Loosen fixing screws, the partition When assembling, fit plate has a hook on the lower hook into the lower side, than lift the bottom frame. and pull the proof plate.
- Page 29 Removal of procedure 11.5 Removal of compressor and heat exchanger Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points down concenting pipe and compressor remove valve bracket.
- Page 30 Removal of procedure Step Procedure Points Loosen marked fixing screws remove heat exchanger.