Repair the product or products dealt with in this service information by anyone else could result in serious injury or death 2016 (Qingdao Haier Air Conditioner General corp. , Ltd) All rights reserved. Unauthorized copying and distribution is a violation of law...
Introduction 1 Introduction 1.1 Model name explanation Apply toT1; 220~240V50HZ/1ph Heat pump & R410A refrigerant Version number Platform of indoor units:E Platform Series of indoor units: N-Series Nominal cooling capacity (24000BTU/h) Type of indoor unit: S (wall-mounted) Indoor unit Domestic air conditioner...
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.
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.
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.
Introduction Caution Installation of a leakage breaker is necessary in some cases depending on the conditions of the installation site, to prevent electrical shocks. Do not install the equipment in a place where there is a possibility of combustible gas leaks. If a combustible gas leaks and remains around the unit, it can cause a fire.
Introduction Caution Check to see if the parts and wires are mounted and connected properly, and if the connections at the soldered or crimped terminals are secure. Improper installation and connections can cause excessive heat generation, fire or an electrical shock. If the installation platform or frame has corroded, replace it.
Features 2.Features 4 Fan setting :Select the fan speed LO,MED,HI,AUTO Anti-mold filter: Catches most small particles and remove unpleasant odors effectively. Sleep mode: The setting temperature and the indoor noise can be adjusted to a more comfortable level when you set the “sleep mode” during night sleep. 24Hour timer: Use the timer function to set on,or off,or from on to off,or from off to on Auto restart: Automatic return to previous operation conditions after sudden power blackout Easy clean design: The panel is easy to wash and the airflow vents can be detached easily...
Sensors list TECHNICAL SPECIFICATIONS-PARTS cooling heating Air flow rate(high) m³/h 1200 1200 Speed(super/high/low) 1250/1150/850 1200/ 1150 /800 Type ML fin- 7HI-HX tube Heat exchanger c t i t,Left,Horizontal,Downward Removable/Washable/Mildew Proof Air filter Microcomputer Control Temperature control l l o Note: the data are based on the conditions shown in the table below Conversation formulae n i l Kcal/h= KW×860...
Connector Wiring diagrams 6.Printed Circuit Board Connector Wiring Diagram Indoor unit Connectors Indoor PCB Series PCB connector Connect with load CN1 CN2 connector for terminal block. connector for terminal block. connector for up and down step motor. connector for ambient temp. sensor and piping temp.sensor. connector for receiver display.
Functions and control 7 Functions and control 7.1 main functions and control specifications Including brief introduction to air conditioners of series models and electric control function. 7.1.1 Automatic running Automatic running mode When the running mode is turned to automation after starting the system, the system will first determine the running mode according to the current room temperature and then will run according to the determined mode.
Functions and control low, there is a 3-minutes delay before conversion. Manual operation:When unit is on the wind speed can be set to high, medium, low or automatic as required (execute instruction 2 seconds later after receiving remote signal) Compressor control The compressor can’t be controlled by temperature sensor within 2 minutes after start up and can be only restarted at least 3 minutes later after shutdown.
Functions and control When Tr Ts, compressor, four-ways valve and outdoor fan motor is on, indoor fan motor runs as in cold blast mode, and 4 of compensation is added after compressor is started. When Tr Ts+5 , compressor is off, and the indoor fan motor runs as in warm blast mode. When Tr<Ts+5 , compressor, four-ways valve and outdoor fan motor is on, and the indoor fan motor runs as in the mode of avoiding cold blast.
Functions and control coil pipe is below -4 , compressor and air outlet stop, and air inlet runs according to the temp. setting. Compressor can be restarted 3 minutes later. 18.104.22.168 Defrosting: 22.214.171.124.1 Entry conditions of defrosting: The entry conditions of defrosting is classified into two types: intelligentized defrosting and sensor defrosting.
Functions and control timer mode as follows. 126.96.36.199 Timer on: The LED of “timer on” lights up, and unit behaves with halt status. Timer on is completed, and then unit starts running with the LED of “timer on” off. The unit starts with the the last setting receiving timer signals, and sleep setting is not allowed.
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 188.8.131.52 During test run: The prevention of freezing of evaporator doesn’t work.
Service diagnosis 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. 2.
Service diagnosis 10.4Codes and Description 10.4.1.Problem Symptoms and Measures Symptom Check Item Details of Measure Check to make sure that the rated voltage is None of the units Check the power supply. supplied. operates Check the indoor PCB Check to make sure that the indoor PCB is broken Equipment operates but does Diagnosis...
Seivice diagnosis Check the connector connection. Correct the connection Is it normal? Thermistor resistance check Replace the thermistor Is it normal? Replace the indoor unit PCB Thermistor resistance check method: Remove the connector of the thermistor on the PCB, and measure the resistance of thermistor using tester. The relationship between normal temperature and resistance is shown in the value of indoor thermistor.
Service diagnosis 10.4.2.3 Indoor DC fan motor malfunction Indoor Display Method of Method of The rotation speed detected by the Hall IC during fan motor operation is used to determine Method of Malfunction Malfunction abnormal fan motor operation Malfunction Detection Detection Detection When the detected rotation feedback signal don’t received in 2 minutes...
Circuit Diagram 11.Circuit Diagram Domestic air conditioner...
Circuit Diagram Domestic air conditioner...
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