SiENBE04-507A Daikin Europe N.V. is approved by LRQA for its Quality Management System in accordance with the ISO9001 standard. ISO9001 pertains to quality assurance regarding design, development, manufacturing as well as to services related to the product.
SiENBE04-507A Inverter Pair D-Series zCooling Only Indoor Unit FTKS20DVMW(L) FTKS25DVMW(L) FTKS35DVMW(L) FTKS20DAVMW(L) FTKS25DAVMW(L) FTKS35DAVMW(L) FTKS20DVMW9 FTKS25DVMW9 FTKS35DVMW9 FTKS20D3VMW(L) FTKS25D3VMW(L) FTKS35D3VMW(L) FTKS20D2VMW(L) FTKS25D2VMW(L) FTKS35D2VMW(L) RKS20D2VMB RKS25D2VMB RKS35D2VMB RKS20D3VMB RKS25D3VMB RKS35D3VMB FTXS20DVMW9 FTXS25DVMW9 FTXS35DVMW9 FTXS20D3VMW(L) FTXS25D3VMW(L) FTXS35D3VMW(L) FTXS20D2VMW(L) FTXS25D2VMW(L) FTXS35D2VMW(L) RXS20D2VMB RXS25D2VMB RXS35D2VMB RX
SiENBE04-507A 1. Introduction .............................................................................................v 1.1 Safety Cautions ........................................................................................v Part 1 List of Functions ................................................................ 1 1. List of Functions ......................................................................................2 Part 2 Specifications ...................................................
SiENBE04-507A Part 5 System Configuration....................................................... 77 1. System Configuration............................................................................78 2. Instruction..............................................................................................79 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11 2.12 Safety precautions..................................................................................79 Names of parts ............................
SiENBE04-507A Part 7 Removal Procedure ........................................................ 151 1. Indoor Unit...........................................................................................152 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 1.10 Removal of Air Filter.............................................................................152 Removal of Front Panel........................................................................154 Removal of Front Grille ....................................
SiENBE04-507A Introduction 1. Introduction 1.1 Safety Cautions Cautions and Warnings 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 SiENBE04-507A 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. Be sure to provide the grounding when repairing the equipment in a humid or wet place, to avoid electrical shocks. Be sure to turn off the power switch and unplug the power cable when cleaning the equipment.
SiENBE04-507A Introduction Warning Be sure to use the specified cable to connect between the indoor and outdoor units. Make the connections securely and route the cable properly so that there is no force pulling the cable at the connection terminals. Improper connections can cause excessive heat generation or fire. When connecting the cable between the indoor and outdoor units, make sure that the terminal cover does not lift off or dismount because of the cable.
Introduction SiENBE04-507A Warning Do not use a joined power cable or extension cable, or share the same power outlet with other electrical appliances, since it can cause an electrical shock, excessive heat generation or fire. 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.
SiENBE04-507A Part 1 List of Functions 1. List of Functions ......................................................................................
List of Functions SiENBE04-507A Basic Function Compressor Comfortable Airflow Comfort Control Operation Lifestyle Convenience Air Purifying Filter with Bacteriostatic, Virustatic Functions — — Photocatalytic Deodorizing Filter — — Air Purifying Filter with Photocatalytic Deodorizing Function — — Titanium Apatite Photocatalytic Air-Purifying Filter { { — Mold Proof Air Filter { { { Wipe-clean Flat Panel { { — Washable Grille — — — { { –10 ~46 –10 ~46 Operation Limit for He
Basic Function Compressor Comfortable Airflow Comfort Control Operation Lifestyle Convenience FTXS20-35DVMW9 RXS20-35D(2)VMB Inverter (with Inverter Power Control) FTKS20-35DVMW9 RKS20-35D(2)VMB Functions FTXS20-35DVMW9 RXS20-35D(2)VMB Category List of Functions FTKS20-35DVMW9 RKS20-35D(2)VMB SiENBE04-507A Air Purifying Filter with Bacteriostatic, Virustatic Functions — — Photocatalytic Deodorizing Filter — — Air Purifying Filter with Photocatalytic Deodorizing Function — — Titanium
{ –10 ~46 –10 ~46 Operation Limit for Heating (°CWB) — –15 ~20 PAM Control { { Oval Scroll Compressor — — Swing Compressor { { Rotary Compressor — Reluctance DC Motor { Power-Airflow Flap — Inverter (with Inverter Power Control) Basic Function Compressor Comfortable Airflow Comfort Control Operation Lifestyle Convenience Operation Limit for Cooling (°CDB) H1 Air Purifying Filter with Bacteriostatic, Virustatic Functions — — Photocatalytic Deodorizing Filter — — Air Purifyin
FTKS20-35DAVMW(L) RKS20-35D3VMB FTXS20-35DAVMW(L) RXS20-35D3VMB Air Purifying Filter with Bacteriostatic, Virustatic Functions — — Photocatalytic Deodorizing Filter — — Air Purifying Filter with Photocatalytic Deodorizing Function — — Titanium Apatite Photocatalytic Air-Purifying Filter { { — Mold Proof Air Filter { { { Wipe-clean Flat Panel { { — — Washable Grille — — Power-Airflow Dual Flaps { { Mold Proof Operation — — Power-Airflow Diffuser — — Heating Dry Operation
{ –10 ~46 –10 ~46 Operation Limit for Heating (°CWB) — –15 ~20 PAM Control { { Oval Scroll Compressor — — Swing Compressor { { Rotary Compressor — Reluctance DC Motor { Power-Airflow Flap — Inverter (with Inverter Power Control) Basic Function Compressor Comfortable Airflow Comfort Control Operation Lifestyle Convenience Operation Limit for Cooling (°CDB) H1 Air Purifying Filter with Bacteriostatic, Virustatic Functions — — Photocatalytic Deodorizing Filter — — Air Purifyin
SiENBE04-507A Part 2 Specifications 1. Specifications ..........................................................................................8 1.1 Cooling Only.............................................................................................8 1.2 Heat Pump .............................................................................................
Specifications SiENBE04-507A 1. Specifications 1.1 Cooling Only 50Hz 230V Models Indoor Units Outdoor Units Capacity Rated (Min.~Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min.~Max.) Power Factor COP Rated (Min.~Max.
SiENBE04-507A Specifications 50Hz 230V Models Indoor Units Outdoor Units Capacity Rated (Min.~Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min.~Max.) Power Factor COP Rated (Min.~Max.
Specifications SiENBE04-507A 50Hz 230V Models Indoor Units Outdoor Units Capacity Rated (Min.~Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min.~Max.) Power Factor COP Rated (Min.~Max.
SiENBE04-507A Specifications 50Hz 230V Models Indoor Units Outdoor Units Capacity Rated (Min.~Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min.~Max.) Power Factor COP Rated (Min.~Max.
Specifications SiENBE04-507A 50Hz 230V Models Indoor Units Outdoor Units Capacity Rated (Min.~Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min.~Max.) Power Factor COP Rated (Min.~Max.
SiENBE04-507A Specifications 50Hz 230V Models Indoor Units Outdoor Units Capacity Rated (Min.~Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min.~Max.) Power Factor COP Rated (Min.~Max.
Specifications SiENBE04-507A 50Hz 230V Models Indoor Units Outdoor Units Capacity Rated (Min.~Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min.~Max.) Power Factor COP Rated (Min.~Max.
SiENBE04-507A Specifications 50Hz 230V Models Indoor Units Outdoor Units Capacity Rated (Min.~Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min.~Max.) Power Factor COP Rated (Min.~Max.
Specifications SiENBE04-507A 50Hz 230V Models Indoor Units Outdoor Units Capacity Rated (Min.~Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min.~Max.) Power Factor COP Rated (Min.~Max.
SiENBE04-507A Specifications 50Hz 230V Models Indoor Units Outdoor Units Capacity Rated (Min.~Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min.~Max.) Power Factor COP Rated (Min.~Max.
Specifications SiENBE04-507A 50Hz 230V Models Indoor Units Outdoor Units Capacity Rated (Min.~Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min.~Max.) Power Factor COP Rated (Min.~Max.
SiENBE04-507A Specifications 50Hz 230V Models Indoor Units Outdoor Units Capacity Rated (Min.~Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min.~Max.) Power Factor COP Rated (Min.~Max.
Specifications SiENBE04-507A 50Hz 230V Models Indoor Units Outdoor Units Capacity Rated (Min.~Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min.~Max.) Power Factor COP Rated (Min.~Max.
SiENBE04-507A 1.2 Specifications Heat Pump 50Hz 230V Indoor Units Models FTXS20DVMW(9) RXS20DVMB Outdoor Units Capacity Rated (Min.~Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min.~Max.) Power Factor COP Rated (Min.~Max.
Specifications SiENBE04-507A 50Hz 230V Indoor Units Models FTXS20D2VMW RXS20DVMB Outdoor Units Capacity Rated (Min.~Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min.~Max.) Power Factor COP Rated (Min.~Max.
SiENBE04-507A Specifications 50Hz 230V Indoor Units Models FTXS20DVML RXS20DVMB Outdoor Units Capacity Rated (Min.~Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min.~Max.) Power Factor COP Rated (Min.~Max.
Specifications SiENBE04-507A 50Hz 230V Indoor Units Models FTXS20D2VML RXS20DVMB Outdoor Units Capacity Rated (Min.~Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min.~Max.) Power Factor COP Rated (Min.~Max.
SiENBE04-507A Specifications 50Hz 230V Indoor Units Models FTXS25DVMW(9) RXS25DVMB Outdoor Units Capacity Rated (Min.~Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min.~Max.) Power Factor COP Rated (Min.~Max.
Specifications SiENBE04-507A 50Hz 230V Indoor Units Models FTXS25D2VMW RXS25DVMB Outdoor Units Capacity Rated (Min.~Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min.~Max.) Power Factor COP Rated (Min.~Max.
SiENBE04-507A Specifications 50Hz 230V Indoor Units Models FTXS25DVML RXS25DVMB Outdoor Units Capacity Rated (Min.~Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min.~Max.) Power Factor COP Rated (Min.~Max.
Specifications SiENBE04-507A 50Hz 230V Indoor Units Models FTXS25D2VML RXS25DVMB Outdoor Units Capacity Rated (Min.~Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min.~Max.) Power Factor COP Rated (Min.~Max.
SiENBE04-507A Specifications 50Hz 230V Indoor Units Models FTXS35DVMW(9) RXS35DVMB Outdoor Units Capacity Rated (Min.~Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min.~Max.) Power Factor COP Rated (Min.~Max.
Specifications SiENBE04-507A 50Hz 230V Indoor Units Models FTXS35D2VMW RXS35DVMB Outdoor Units Capacity Rated (Min.~Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min.~Max.) Power Factor COP Rated (Min.~Max.
SiENBE04-507A Specifications 50Hz 230V Indoor Units Models FTXS35DVML RXS35DVMB Outdoor Units Capacity Rated (Min.~Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min.~Max.) Power Factor COP Rated (Min.~Max.
Specifications SiENBE04-507A 50Hz 230V Indoor Units Models FTXS35D2VML RXS35DVMB Outdoor Units Capacity Rated (Min.~Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min.~Max.) Power Factor COP Rated (Min.~Max.
SiENBE04-507A Specifications 50Hz 230V Indoor Units Models FTXS20DAVMW RXS20D3VMB Outdoor Units Capacity Rated (Min.~Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min.~Max.) Power Factor COP Rated (Min.~Max.
Specifications SiENBE04-507A 50Hz 230V Indoor Units Models FTXS20D3VMW RXS20D3VMB Outdoor Units Capacity Rated (Min.~Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min.~Max.) Power Factor COP Rated (Min.~Max.
SiENBE04-507A Specifications 50Hz 230V Indoor Units Models FTXS25DAVMW RXS25D3VMB Outdoor Units Capacity Rated (Min.~Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min.~Max.) Power Factor COP Rated (Min.~Max.
Specifications SiENBE04-507A 50Hz 230V Indoor Units Models FTXS25D3VMW RXS25D3VMB Outdoor Units Capacity Rated (Min.~Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min.~Max.) Power Factor COP Rated (Min.~Max.
SiENBE04-507A Specifications 50Hz 230V Indoor Units Models FTXS35DAVMW RXS35D3VMB Outdoor Units Capacity Rated (Min.~Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min.~Max.) Power Factor COP Rated (Min.~Max.
Specifications SiENBE04-507A 50Hz 230V Indoor Units Models FTXS35D3VMW RXS35D3VMB Outdoor Units Capacity Rated (Min.~Max.) Moisture Removal Running Current (Rated) Power Consumption Rated (Min.~Max.) Power Factor COP Rated (Min.~Max.
SiENBE04-507A Part 3 Printed Circuit Board Connector Wiring Diagram 1. Printed Circuit Board Connector Wiring Diagram..................................40 1.1 Indoor Unit..............................................................................................40 1.2 Outdoor Unit ...........................................................................................
Printed Circuit Board Connector Wiring Diagram SiENBE04-507A 1. Printed Circuit Board Connector Wiring Diagram 1.
SiENBE04-507A PCB Detail Printed Circuit Board Connector Wiring Diagram PCB(1): Control PCB V1 S1 FU1 S6 S21 S35 LED A JA JB JC S32 S28 S26 (R4288) PCB(2): Signal Receiver PCB PCB(3): Display PCB S27 SW1 S29 (R4289) LED1 LED2 LED3 RTH1 (R4290) PCB(4): INTELLIGENT EYE sensor PCB S36 (R4291) Printed Circuit Board Connector Wiring Diagram 41
Printed Circuit Board Connector Wiring Diagram 1.
SiENBE04-507A PCB Detail Printed Circuit Board Connector Wiring Diagram PCB(1): Filter PCB V3 V2 FU3(20A) S11 (R4293) PCB(2): Control PCB (outdoor unit) S10 S40 LED A S90 S30 S70 J8 HC3 FU2(3.15A) HN3 HC4 S20 Printed Circuit Board Connector Wiring Diagram S80 V1 FU1(3.
Printed Circuit Board Connector Wiring Diagram 44 SiENBE04-507A Printed Circuit Board Connector Wiring Diagram
SiENBE04-507A Part 4 Function and Control 1. Main Functions......................................................................................46 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 1.10 1.11 Frequency Principle................................................................................46 Air Flow Direction Control.......................................................................48 Fan Speed Control for Indoor Units........................................................
Main Functions SiENBE04-507A 1. Main Functions Note: 1.1 See the list of functions for the functions applicable to different models. Frequency Principle Main Control Parameters The compressor is frequency-controlled during normal operation.
SiENBE04-507A Inverter Features Main Functions The inverter provides the following features: The regulating capacity can be changed according to the changes in the outdoor air temperature and cooling / heating load. Quick heating and quick cooling The compressor rotational speed is increased when starting the heating (or cooling). This enables a quick set temperature.
Main Functions 1.2 SiENBE04-507A Air Flow Direction Control Power-Airflow Dual Flaps The large flaps send a large volume of air downwards to the floor. The flap provides an optimum control area in cooling, heating and dry mode. Heating Mode During heating mode, the large flap enables direct warm air straight downwards. The flap presses the warm air above the floor to reach the entire room. Cooling Mode During cooling mode, the flap retracts into the indoor unit.
SiENBE04-507A 1.3 Main Functions Fan Speed Control for Indoor Units Control Mode The airflow rate can be automatically controlled depending on the difference between the set temperature and the room temperature. This is done through phase control and Hall IC control. For more information about Hall IC, refer to trouble shooting for fan motor on page 115. Phase control and fan speed control contains 9 steps: LLL, LL, SL, L, ML, M, MH, H and HH.
Main Functions 1.4 SiENBE04-507A Programme Dry Function Programme dry function removes humidity while preventing the room temperature from lowering. Since the microcomputer controls both the temperature and air flow volume, the temperature adjustment and fan adjustment buttons are inoperable in this mode. In Case of Inverter Units The microcomputer automatically sets the temperature and fan settings.
SiENBE04-507A 1.5 Main Functions Automatic Operation Automatic Cooling / Heating Function (Heat Pump Only) When the AUTO mode is selected with the remote controller, the microcomputer automatically determines the operation mode from cooling and heating according to the room temperature and setting temperature at the time of the operation startup, and automatically operates in that mode.
Main Functions 1.6 SiENBE04-507A Thermostat Control Thermostat control is based on the difference between the room temperature and the setpoint. Thermostat OFF Condition The temperature difference is in the zone A. Thermostat ON Condition The temperature difference is above the zone C after being in the zone A. The system resumes from defrost control in any zones except A. The operation turns on in any zones except A.
SiENBE04-507A 1.7 Main Functions NIGHT SET Mode When the OFF timer is set, the NIGHT SET circuit automatically activates. The NIGHT SET circuit maintains the airflow setting made by users. The NIGHT SET Circuit The NIGHT SET circuit continues heating or cooling the room at the set temperature for the first one hour, then automatically raises the temperature setting slightly in the case of cooling, or lowers it slightly in the case of heating, for economical operations.
Main Functions 1.8 Outline SiENBE04-507A ECONO Mode The "ECONO mode" reduces the maximum operating current and power consumption by approx. 30% during start up etc.. This mode is particularly convenient for energy-saving-oriented users. It is also a major bonus for those whose breaker capacities do not allow the use of multiple electrical devices and air conditioners. It is easily activated from the wireless remote controller by pushing the ECONO button.
SiENBE04-507A 1.9 Main Functions INTELLIGENT EYE This is the function that detects existence of humans in the room by a human motion sensor (INTELLIGENT EYE) and reduces the capacity when there is no human in the room in order to save electricity. Processing 1. Detection method by INTELLIGENT EYE sampling (20msec) Sensor output 1sec If the sensor detects the outputs 10 times/sec. or more, it judges humans exist.
Main Functions SiENBE04-507A Since the set temperature is shifted by 2°C higher for 40 minutes, compressor speed becomes low and can realize energy saving operation. But as thermostat is prone to be off by the fact that the set temperature has been shifted, the thermostat-off action is prohibited in 40 minutes so as to prevent this phenomena.
SiENBE04-507A Main Functions 1.10 Inverter POWERFUL Operation Outline In order to exploit the cooling and heating capacity to full extent, operate the air conditioner by increasing the indoor fan rotating speed and the compressor frequency. Details of the Control When POWERFUL button is pushed in each operation mode, the fan speed / setting temperature will be converted to the following states in a period of twenty minutes.
Main Functions SiENBE04-507A 1.11 Other Functions 1.11.1 Hot Start Function Heat Pump Only In order to prevent the cold air blast that normally comes when heating is started, the temperature of the heat exchanger of the indoor unit is detected, and either the air flow is stopped or is made very weak thereby carrying out comfortable heating of the room. *The cold air blast is also prevented using a similar control when the defrosting operation is started or when the thermostat gets turned ON. 1.11.
SiENBE04-507A Function of Thermistor 2. Function of Thermistor 2.1 Heat Pump Model A C Four way valve B Compressor (R3305) A Outdoor Heat Exchanger Thermistor (DCB) 1. The outdoor heat exchanger thermistor is used for controlling target discharge temperature. The system sets a target discharge temperature according to the outdoor and indoor heat exchanger temperature, and controls the electronic expansion valve opening so that the target discharge temperature can be obtained. 2.
Function of Thermistor 2.2 SiENBE04-507A Cooling Only Model A C B Compressor (R2828) A Outdoor Heat Exchanger Thermistor (DCB) 1. The outdoor heat exchanger thermistor is used for controlling target discharge temperature. The system sets a target discharge temperature according to the outdoor and indoor heat exchanger temperature, and controls the electronic expansion valve opening so that the target discharge temperature can be obtained. 2.
SiENBE04-507A Control Specification 3. Control Specification 3.1 Mode Hierarchy Outline There are two modes; the mode selected in user’s place (normal air conditioning mode) and forced operation mode for installation and providing service. Detail 1.
Control Specification 3.2 Outline SiENBE04-507A Frequency Control Frequency will be determined according to the difference between room and set temperature. The function is explained as follows. 1. How to determine frequency. 2. Frequency command from an indoor unit. (The difference between a room temperature and the temperature set by the remote controller.) 3. Frequency command from an indoor unit. 4. Frequency initial setting. 5. PI control.
SiENBE04-507A Control Specification 2. Determine upper limit frequency Set a minimum value as an upper limit frequency among the frequency upper limits of the following functions: Compressor protection, input current, discharge pipes, freeze-up protection, dew prevention, fin thermistor temperature. 3. Determine lower limit frequency Set a maximum value as an lower limit frequency among the frequency lower limits of the following functions: Pressure difference upkeep. 4.
Control Specification 3.3 SiENBE04-507A Controls at Mode Changing / Start-up 3.3.1 Preheating Operation Outline Operate the inverter in the open phase operation with the conditions including the preheating command from the discharge pipe temperature. Detail Preheating ON Condition When the discharge pipe temperature is below 10şC, inverter in open phase operation starts. OFF Condition When the discharge pipe temperature is higher than 12şC, inverter in open phase operation stops. 3.3.
SiENBE04-507A Control Specification 3.3.4 3-minutes Standby Prohibit to turn ON the compressor for 3 minutes after turning it off. (Except when defrosting. (Only for Heat Pump Model).) 3.3.5 Compressor Protection Function When turning the compressor from OFF to ON, the upper limit of frequency must be set as follows. (The function must not be used when defrosting (only for heat pump model).) FCG 3 FCG 2 FCG 1 TCG 1 TCG 2 TCG 3 3.
Control Specification 3.5 Outline SiENBE04-507A Input Current Control The microcomputer calculates the input current during the compressor is running, and set the frequency upper limit from such input current. In case of heat pump model, this control is the upper limit control function of the frequency which takes priority of the lower limit of four way valve activating compensation.
SiENBE04-507A 3.6 Control Specification Freeze-up Protection Control Outline During cooling operation, the signals being sent from the indoor unit allow the operating frequency limitation and then prevent freezing of the indoor heat exchanger. (The signal from the indoor unit must be divided into the zones as the followings. Detail Conditions for Start Controlling Judge the controlling start with the indoor heat exchanger temperature after 2 sec from operation start.
Control Specification 3.8 SiENBE04-507A Fan Control Outline Fan control is carried out with following functions. 1. Fan control when defrosting 2. Fan OFF delay when stopped 3. ON/OFF control when cooling operation 4. Fan control when forced operation 5. Fan control in low noise mode 6. Fan control during heating operation 7. Fan control in the quiet mode 8. Fan control in the powerful mode 9.
SiENBE04-507A Control Specification 3.10 Defrost Control Outline Heat Pump Only Defrosting is carried out by the cooling cycle (reverse cycle). The defrosting time or outdoor heat exchanger temperature must be more than its fixed value when finishing. Detail Conditions for Starting Defrost The starting conditions must be made with the outdoor air temperature and heat exchanger temperature.
Control Specification SiENBE04-507A 3.11 Electronic Expansion Valve Control Detail The followings are the examples of control which function in each mode by the electronic expansion valve control. Control for abnormally high discharge pipe temperature The following items are included in the electronic expansion valve control. Electronic expansion valve is fully closed 1. Electronic expansion valve is fully closed when turning on the power. 2. Pressure equalizing control Open Control 1.
SiENBE04-507A Control Specification 3.11.1 Fully Closing with Power ON Initialize the electronic expansion valve when turning on the power, set the opening position and develop pressure equalizing. 3.11.2 Pressure Equalization Control When the compressor is stopped, open and close the electronic expansion valve and develop pressure equalization. 3.11.3 Opening Limit Outline Limit a maximum and minimum opening of the electronic expansion valve.
Control Specification SiENBE04-507A 3.11.7 Control when frequency is changed When the target discharge pipe temperature control is active, if the target frequency is changed for a specified value in a certain time period, cancel the target discharge pipe temperature control and change the target opening of the electronic expansion valve according to the shift. 3.11.
SiENBE04-507A Control Specification 3.12 Malfunctions 3.12.1 Sensor Malfunction Detection Sensor malfunction may occur in the thermistor. Relating to Thermistor Malfunction 1. Outdoor heat exchanger thermistor 2. Discharge pipe thermistor 3. Fin thermistor 4. Outdoor air thermistor 3.12.2 Detection of Overload and Over Current Outline In order to protect the inverter, detect an excessive output current, and for protecting compressor, monitor the OL operation.
Control Specification Detail SiENBE04-507A I Judgment by power consumption When an output frequency is exceeds 55 Hz and the input current is less than specified value, the adjustment is made for insufficient gas. II Judgment by discharge pipe temperature When discharge pipe temperature is 30°C higher than target value and the electronic expansion value opening is 480 pulses (max.), the adjustment is made for insufficient gas.
SiENBE04-507A Control Specification 3.15 Facility Setting Jumper (cooling at low outdoor temperature) Outline This function is limited only for facilities (the target of air conditioning is equipment (such as computer)). Never use it in a residence or office (the space where there is a human). Detail You can expand the operation range to –15°C by cutting jumper 8 (J8) on the PCB. If the outdoor temperature falls to –20°C or lower, the operation will stop.
Control Specification 76 SiENBE04-507A Function and Control
SiENBE04-507A Part 5 System Configuration 1. System Configuration............................................................................78 2. Instruction..............................................................................................79 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11 2.12 System Configuration Safety precautions..................................................................................79 Names of parts ................................................................
System Configuration SiENBE04-507A 1. System Configuration After the installation and test operation of the room air conditioner have been completed, it should be operated and handled as described below. Every user would like to know the correct method of operation of the room air conditioner, to check if it is capable of cooling (or heating) well, and to know a clever method of using it.
SiENBE04-507A Instruction 2. Instruction 2.1 Safety Precautions • • • • Keep this manual where the operator can easily find them. Read this manual attentively before starting up the unit. For safety reason the operator must read the following cautions carefully. This manual classifies precautions into WARNINGS and CAUTIONS. Be sure to follow all precautions below: they are all important for ensuring safety.
Instruction SiENBE04-507A • • • • • • • • • • • • Do not stand or sit on the outdoor unit. Do not place any object on the unit to avoid injury, do not remove the fan guard. Do not place anything under the indoor or outdoor unit that must be kept away from moisture. In certain conditions, moisture in the air may condense and drip. After a long use, check the unit stand and fittings for damage. Do not touch the air inlet and aluminum fins of outdoor unit. It may cause injury.
SiENBE04-507A 2.
Instruction SiENBE04-507A Oudoor Unit 17 22 19 20 18 21 Indoor Unit 1. Air filter 2. Titanium Apatite Photocatalytic Air purifying filter: • These filters are attached to the inside of the air filters. 3. Air inlet 4. Front panel 5. Panel tab 6. Room temperature sensor: • It senses the air temperature around the unit. 7. INTELLIGENT EYE sensor: • It detects the movements of people and automatically switches between normal operation and energy saving operation. (page 94) 8. Display 9.
SiENBE04-507A Instruction Remote control 1 2 5 ECONO ON/OFF 3 POWERFUL TEMP 6 4 7 8 13 MODE SWING FAN SILENT COMFORT SENSOR ON CANCEL 9 10 12 11 16 OFF TIMER 15 18 17 14 1. Signal transmitter: • It sends signals to the indoor unit. 2. Display: • It displays the current settings. (In this illustration, each section is shown with all its displays ON for the purpose of explanation.) 3. ECONO button: ECONO operation (page 93) 4.
Instruction 2.3 SiENBE04-507A Preparation before Operation To set the batteries 1. Press with a finger and slide the front cover to take it off. 2. Set two dry batteries (AAA). 3. Set the front cover as before. Position + and – correctly! 2 – + + – 3 1 ATTENTION About batteries • When replacing the batteries, use batteries of the same type, and replace the two old batteries together. • When the system is not used for a long time, take the batteries out.
SiENBE04-507A Instruction To operate the remote control • • • To use the remote control, aim the transmitter at the indoor unit. If there is anything to block signals between the unit and the remote control, such as a curtain, the unit will not operate. Do not drop the remote control. Do not get it wet. The maximum distance for communication is about 7 m. Receiver To fix the remote control holder on the wall 1. Choose a place from where the signals reach the unit. 2.
Instruction SiENBE04-507A To set the clock 1. Press “CLOCK button”. 0:00 is displayed. blinks. 2. Press “TIMER setting button” to set the clock to the present time. Holding down “ ” or “ ” button rapidly increases or decreases the time display. 3. Press “CLOCK button”. : blinks. POWERFUL Turn the breaker ON • ECONO Turning ON the breaker opens the flap, then closes it again. (This is a normal procedure.
SiENBE04-507A 2.4 Instruction AUTO · DRY · COOL · HEAT · FAN Operation The air conditioner operates with the operation mode of your choice. From the next time on, the air conditioner will operate with the same operation mode. To start operation 1. Press “MODE selector button” and select a operation mode. • Each pressing of the button advances the mode setting in sequence.
Instruction SiENBE04-507A To change the air flow rate setting 5. Press “FAN setting button”. DRY mode The air flow rate setting is not variable. • AUTO or COOL or HEAT or FAN mode Five levels of air flow rate setting from “ plus “ ”“ ” are available. ” to “ ” Indoor unit quiet operation When the air flow is set to “ ”, the noise from the indoor unit will become quieter. Use this when making the noise quieter. The unit might lose capacity when the air flow rate is set to a weak level.
SiENBE04-507A 2.5 Instruction Adjusting the Air Flow Direction You can adjust the air flow direction to increase your comfort. To adjust the horizontal blades (flaps) 1. Press “SWING button”. is displayed on the LCD and the flaps will begin to swing. 2. When the flaps have reached the desired position, press “SWING button” once more. The display will go blank. The flaps will stop moving.
Instruction SiENBE04-507A To start COMFORT AIRFLOW operation 3. Press “COMFORT AIRFLOW button”. The flap position will change, preventing air from blowing directly on the occupants of the room. • “ ” is displayed on the LCD. The flap will go up. The flap will go down. To cancel COMFORT AIRFLOW operation 4. Press “COMFORT AIRFLOW button” again. • The flaps will return to the memory position from before COMFORT AIRFLOW mode.
SiENBE04-507A 2.6 Instruction POWERFUL Operation POWERFUL operation quickly maximizes the cooling (heating) effect in any operation mode. You can get the maximum capacity. To start POWERFUL operation 1. Press “POWERFUL button”. • POWERFUL operation ends in 20 minutes. Then the system automatically operates again with the settings which were used before POWERFUL operation. • When using POWERFUL operation, there are some functions which are not available. • “ ” is displayed on the LCD.
Instruction 2.7 SiENBE04-507A OUTDOOR UNIT SILENT Operation OUTDOOR UNIT SILENT operation lowers the noise level of the outdoor unit by changing the frequency and fan speed on the outdoor unit. This function is convenient during night. To start OUTDOOR UNIT SILENT operation 1. Press “SILENT button”. • “ ” is displayed on the LCD. To cancel OUTDOOR UNIT SILENT operation 2. Press “SILENT button” again. • “ ” disappears from the LCD.
SiENBE04-507A 2.8 Instruction ECONO Operation ECONO operation is a function which enables efficient operation by lowering the maximum power consumption value. To start ECONO operation 1. Press “ECONO button”. • “ ” is displayed on the LCD. To cancel ECONO operation 2. Press “ECONO button” again. • “ ” is disappears from the LCD.
Instruction 2.9 SiENBE04-507A INTELLIGENT EYE Operation “INTELLIGENT EYE” is the infrared sensor which detects the human movement. To start INTELLIGENT EYE operation 1. Press “SENSOR button”. • “ ” is displayed on the LCD. To cancel the INTELLIGENT EYE operation 2. Press “SENSOR button” again. “ ” is disappears from the LCD. {EX.} ECONO POWERFUL ON/OFF TEMP When somebody in the room MODE SWING FAN SILENT COMFORT SENSOR • Normal operation 1, 2 ON CANCEL When nobody in the room • 20 min.
SiENBE04-507A Instruction “INTELLIGENT EYE” is useful for Energy Saving Energy saving operation • Change the temperature –2°C in heating / +2°C in cooling / +1°C in dry mode from set temperature. • Decrease the air flow rate slightly in fan operation. (In FAN mode only) Notes on “INTELLIGENT EYE” • Application range is as follows. Vertical angle 90° (Side View) Horizontal angle 110° (Top View) • • • • • 90° 7m 55° 55° 7m Sensor may not detect moving objects further than 5m away.
Instruction SiENBE04-507A 2.10 TIMER Operation Timer functions are useful for automatically switching the air conditioner on or off at night or in the morning. You can also use OFF TIMER and ON TIMER in combination. To use OFF TIMER operation • Check that the clock is correct. If not, set the clock to the present time. (page 84) 1. Press “OFF TIMER button”. 0:00 is displayed. blinks. 2. Press “TIMER Setting button” until the time setting reaches the point you like.
SiENBE04-507A Instruction To use ON TIMER operation • Check that the clock is correct. If not, set the clock to the present time. (page 84) 1. Press “ON TIMER button”. 6:00 is displayed. blinks. 2. Press “TIMER Setting button” until the time setting reaches the point you like. • Every pressing of either button increases or decreases the time setting by 10 minutes. Holding down either button changes the setting rapidly. 3. Press “ON TIMER button” again. • The TIMER lamp lights up.
Instruction SiENBE04-507A 2.11 Care and Cleaning CAUTION Before cleaning, be sure to stop the operation and turn the breaker OFF. Units Indoor unit, Outdoor unit and Remote control 1. Wipe them with dry soft cloth. Front panel 1. Open the front panel. • Hold the panel by the tabs on the two sides and lift it until it stops with a click. 2. Remove the front panel. • Lift the front panel up, slide it slightly to the right, and remove it from the horizontal axle. 3. Clean the front panel.
SiENBE04-507A Instruction Filters 1. Open the front panel. (page 98) 2. Pull out the air filters. • Push a little upwards the tab at the center of each air filter, then pull it down. 3. Take off the air Titanium Apatite Photocatalytic Air-Purifying Filter. • Hold the recessed parts of the frame and unhook the four claws. 4. Clean or replace each filter. See below. 5. Set the air filter and Titanium Apatite Photocatalytic Air-Purifying Filter as they were and close the front panel.
Instruction SiENBE04-507A NOTE • • • Operation with dirty filters : (1) cannot deodorize the air. (2) cannot clean the air. (3) results in poor heating or cooling. (4) may cause odour. To order Titanium Apatite Photocatalytic Air-Purifying Filter contact to the service shop there you bought the air conditioner. Dispose of old filters as burnable waste.. Item Titanium Apatite Photocatalytic Air-Purifying Filter. (without frame) 1 set Part No.
SiENBE04-507A Instruction 2.12 Troubleshooting These cases are not troubles. The following cases are not air conditioner troubles but have some reasons. You may just continue using it. Case Operation does not start soon. • • When ON/OFF button was pressed soon after operation was stopped. • When the mode was reselected. Hot air does not flow out soon after • the start of heating operation. The heating operation stops suddenly and a flowing sound is heard. The outdoor unit emits water or steam.
Instruction SiENBE04-507A Check again. Please check again before calling a repair person. Case The air conditioner does not operate. (OPERATION lamp is off) Cooling (Heating) effect is poor. • • • • • • • • • • 102 Operation stops suddenly. (OPERATION lamp flashes.) • • An abnormal functioning happens during operation.
SiENBE04-507A Instruction Call the service shop immediately. WARNING When an abnormality (such as a burning smell) occurs, stop operation and turn the breaker OFF. Continued operation in an abnormal condition may result in troubles, electric shocks or fire. Consult the service shop where you bought the air conditioner. Do not attempt to repair or modify the air conditioner by yourself. Incorrect work may result in electric shocks or fire. Consult the service shop where you bought the air conditioner.
Instruction SiENBE04-507A Fault diagnosis FAULT DIAGNOSIS BY REMOTE CONTROL In the ARC433A series, the temperature display sections on the main unit indicate corresponding codes. 1. When the TIMER CANCEL button is held down for 5 seconds, a “00 ” indication flashes on the temperature display section. ECONO ON/OFF POWERFUL TEMP MODE FAN SWING SILENT COMFORT SENSOR ON CANCEL TIMER CANCEL button It cancels the timer setting. OFF TIMER 2.
SiENBE04-507A Part 6 Service Diagnosis 1. 2. 3. 4. Caution for Diagnosis..........................................................................106 Problem Symptoms and Measures .....................................................107 Service Check Function ......................................................................108 Troubleshooting ..................................................................................111 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 4.10 4.11 4.12 4.13 4.14 4.15 4.16 4.
Caution for Diagnosis SiENBE04-507A 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. When a signal transmission error occurs between the indoor and outdoor units. In either case, conduct the diagnostic procedure described in the following pages.
SiENBE04-507A Problem Symptoms and Measures 2. Problem Symptoms and Measures Symptom Check Item Details of Measure None of the Units Operates. Check the power supply. Check to make sure that the rated voltage is supplied. Check to make sure that the indoor unit type is compatible with the outdoor unit. Heating operation cannot be used when the outdoor air temperature is 20°C or higher (only for heat pump model), and cooling operation cannot be used when the outdoor air temperature is below –10°C.
Service Check Function SiENBE04-507A 3. Service Check Function In the ARC433A series remote controller, the temperature display sections on the main unit indicate corresponding codes. Check Method 1 1. When the timer cancel button is held down for 5 seconds, a “00” indication flashes on the temperature display section. ECONO POWERFUL ON/OFF TEMP MODE SWING FA N SILENT COMFORT SENSOR ON CANCEL TIMER CANCEL button It cancels the timer setting. OFF TIMER (R4271) 2.
SiENBE04-507A Service Check Function Check Method 2 1. Enter the diagnosis mode. Press the 3 buttons (TEMPs,TEMPt, MODE) simultaneously. (R4272) The digit of the number of tens blinks. HTry again from the start when the digit does not blink. (R4273) 2. Press the TEMP button. Press TEMPs or TEMPt and change the digit until you hear the sound of “beep” or “pi pi”. (R4274) 3. Diagnose by the sound. H“ pi ” : The number of tens does not accord with the error code.
Service Check Function SiENBE04-507A 5. Press the TEMP button. Press TEMPs or TEMPt and change the digit until you hear the sound of “beep”. (R4277) 6. Diagnose by the sound. H“ pi ” : The both numbers of tens and units do not accord with the error code. H“ pi pi ” : The number of tens accords with the error code. H“ beep ” : The both numbers of tens and units accord with the error code. 7. Determine the error code. The digits indicated when you hear the “beep” sound are error code.
SiENBE04-507A Troubleshooting 4. Troubleshooting 4.
Troubleshooting 4.2 SiENBE04-507A Indoor Unit PCB Abnormality Remote Controller Display A1 Method of Malfunction Detection Evaluation of zero-cross detection of power supply by indoor unit. Malfunction Decision Conditions When there is no zero-cross detection in approximately 10 continuous seconds.
SiENBE04-507A 4.3 Troubleshooting Freeze-up Protection Control or High Pressure Control Remote Controller Display A5 Method of Malfunction Detection High pressure control (heat pump model only) During heating operations, the temperature detected by the indoor heat exchanger thermistor is used for the high pressure control (stop, outdoor fan stop, etc.
Troubleshooting SiENBE04-507A Troubleshooting Check No.6 Refer to P.146 Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Check the air passage. Is there any short-circuit? YES Provide sufficient air passage. NO Check the intake air filter. Is it very dirty? YES Clean the air filter. NO Check the dust accumulation on the indoor unit heat exchanger. Is it very dirty? YES Clean the heat exchanger. NO Check No.
SiENBE04-507A 4.4 Troubleshooting Fan Motor (DC Motor) or Related Abnormality Remote Controller Display A6 Method of Malfunction Detection The rotation speed detected by the Hall IC during fan motor operation is used to determine abnormal fan motor operation. Malfunction Decision Conditions When the detected rotation speed is less than 50% of the H tap under maximum fan motor rotation demand.
Troubleshooting SiENBE04-507A Troubleshooting Caution Check No.01 Refer to P.144 Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Turn off power supply and rotate fan by hand. Does fan rotate smoothly? NO Replace fan motor. YES Turn power ON and operate fan. Does it rotate? Turn off power supply NO and disconnect fan motor connector, then turn power ON. YES Check No.
SiENBE04-507A 4.5 Troubleshooting Thermistor or Related Abnormality (Indoor Unit) Remote Controller Display C4, C9 Method of Malfunction Detection The temperatures detected by the thermistors are used to determine thermistor errors. Malfunction Decision Conditions When the thermistor input is more than 4.96 V or less than 0.04 V during compressor operation∗. ∗ (reference) When above about 212°C (less than 120 ohms) or below about -50°C (more than 1,860 kohms).
Troubleshooting 4.6 SiENBE04-507A Signal Transmission Error (between Indoor and Outdoor Unit) Remote Controller Display U4 Method of Malfunction Detection The data received from the outdoor unit in indoor unit-outdoor unit signal transmission is checked whether it is normal. Malfunction Decision Conditions When the data sent from the outdoor unit cannot be received normally, or when the content of the data is abnormal. Supposed Causes Faulty outdoor unit PCB. Faulty indoor unit PCB.
SiENBE04-507A 4.7 Troubleshooting Unspecified Voltage (between Indoor and Outdoor Units) Remote Controller Display UA Method of Malfunction Detection The supply power is detected for its requirements (different from pair type and multi type) by the indoor / outdoor transmission signal. Malfunction Decision Conditions The pair type and multi type are interconnected.
Troubleshooting 4.8 SiENBE04-507A Outdoor Unit PCB Abnormality Remote Controller Display E1 Method of Malfunction Detection The system follows the microprocessor program to make sure it runs normally. The system checks to see if the zero-cross signal comes in properly. Malfunction Decision Conditions The microprocessor program runs out of control. The zero-cross signal is not detected. Supposed Causes The microcomputer is out of control due to external factors.
SiENBE04-507A 4.9 Troubleshooting OL Activation (Compressor Overload) Remote Controller Display E5 Method of Malfunction Detection A compressor overload is detected through compressor OL. Malfunction Decision Conditions If the compressor OL is activated twice, the system will be shut down. The error counter will reset itself if this or any other error does not occur during the following 60-minute compressor running time (total time). ∗ The operating temperature condition is not specified.
Troubleshooting SiENBE04-507A 4.10 Compressor Lock Remote Controller Display E6 Method of Malfunction Detection A compressor lock is detected by checking the compressor running condition through the position detection circuit. Malfunction Decision Conditions The system judges the compressor lock, and stops due to over current. The system judges the compressor lock, and cannot operation with position detection within 15 seconds after start up.
SiENBE04-507A Troubleshooting 4.11 DC Fan Lock Remote Controller Display E7 Method of Malfunction Detection A fan motor or related error is detected by checking the high-voltage fan motor rpm being detected by the Hall IC. Malfunction Decision Conditions The fan does not start in 30 seconds even when the fan motor is running. The system will be shut down if the error occurs 16 times.
Troubleshooting SiENBE04-507A 4.12 Input Over Current Detection Remote Controller Display E8 Method of Malfunction Detection An input over-current is detected by checking the input current value with the compressor running. Malfunction Decision Conditions The following current with the compressor running continues for 2.5 seconds.
SiENBE04-507A Troubleshooting 4.13 Four Way Valve Abnormality Remote Controller Display EA Method of Malfunction Detection The indoor air temperature thermistor, the indoor unit heat exchanger thermistor, the outdoor temperature thermistor and the outdoor unit heat exchanger thermistor are checked to see if they function within their normal ranges in the operating mode. Malfunction Decision Conditions A following condition continues over 10 minute after operating 5 minutes.
Troubleshooting SiENBE04-507A Troubleshooting Caution Check No.5 Refer to P.145 Check No.6 Refer to P.146 Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Four way valve coil disconnected (loose)? Correct. NO Harness out of connector? Check No.11 Refer to P.148 YES YES Reconnect. NO Check the continuity of the four way valve coil and harness. Disconnect the harness from the connector. Resistance between harnesses about 3kΩ±0.
SiENBE04-507A Troubleshooting 4.14 Discharge Pipe Temperature Control Remote Controller Display F3 Method of Malfunction Detection The discharge pipe temperature control (stop, frequency drooping, etc.) is checked with the temperature being detected by the discharge pipe thermistor. Malfunction Decision Conditions If a stop takes place 4 times successively due to abnormal discharge pipe temperature, the system will be shut down.
Troubleshooting SiENBE04-507A 4.15 High Pressure Control in Cooling Remote Controller Display F6 Method of Malfunction Detection High-pressure control (stop, frequency drop, etc.) is activated in the cooling mode if the temperature being sensed by the heat exchanger thermistor exceeds the limit. Malfunction Decision Conditions Activated when the temperature being sensed by the heat exchanger thermistor rises above 65°C. (The error is cleared when the temperature drops below 54°C.
SiENBE04-507A Troubleshooting Troubleshooting Caution Check No.4 Refer to P.144 Check No.6 Refer to P.146 Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Check the installation space. Check No.7 Installation condition check Abnormal Normal Check No.7 Refer to P.147 Check No.9 Outdoor fan check Abnormal Change the air outlet grille position. Change the installation location. Clean the heat exchanger. Replace the fan motor.
Troubleshooting SiENBE04-507A 4.16 Compressor System Sensor Abnormality Remote Controller Display HO Method of Malfunction Detection The system checks the DC current before the compressor starts. Malfunction Decision Conditions If the DC current before compressor start-up is out of the range 0.5-4.5 V (sensor output converted to voltage value) or if the DC voltage before compressor start-up is below 50 V.
SiENBE04-507A Troubleshooting 4.17 Position Sensor Abnormality Remote Controller Display H6 Method of Malfunction Detection A compressor startup failure is detected by checking the compressor running condition through the position detection circuit. Malfunction Decision Conditions The compressor fails to start in about 15 seconds after the compressor run command signal is sent.
Troubleshooting SiENBE04-507A 4.18 DC Voltage / Current Sensor Abnormality Remote Controller Display H8 Method of Malfunction Detection Detecting abnormality of the DC sensor by the running frequency of compressor and by the input current multiplied DC voltage and current. Malfunction Decision Conditions The compressor running frequency is below 52 Hz. (The input current is also below 0.5 A.) If this error repeats 4 times, the system will be shut down.
SiENBE04-507A Troubleshooting 4.19 Thermistor or Related Abnormality (Outdoor Unit) Remote Controller Display P4, J3, J6, H9 Method of Malfunction Detection This type of error is detected by checking the thermistor input voltage to the microcomputer. [A thermistor error is detected by checking the temperature.] Malfunction Decision Conditions The thermistor input is above 4.96 V or below 0.04 V with the power on.
Troubleshooting Troubleshooting Check No.6 Refer to P.146 SiENBE04-507A Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Turn on the power again. Error displayed again on remote control? NO Reconnect. YES Connector or thermistor disconnected? YES Reconnect. NO Check No. 6 Check the thermistor resistance value. Normal? NO YES Replace defective one(s) of the following thermistors.
SiENBE04-507A Troubleshooting 4.20 Electrical Box Temperature Rise Remote Controller Display L3 Method of Malfunction Detection An electrical box temperature rise is detected by checking the radiation fin thermistor with the compressor off. Malfunction Decision Conditions With the compressor off, the radiation fin temperature is above 80°C. Reset is made when the temperature drops below 70°C.
Troubleshooting SiENBE04-507A Troubleshooting Check No.6 Refer to P.146 Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Turn off the power and turn it on again. Check No.7 Refer to P.147 Error again or outdoor unit fan activated? Check No.9 Refer to P.148 WARNING To cool down the electricals, the outdoor unit fan gets started when the radiation fin temperature rises above 80°C and stops itself when it drops below 70°C.
SiENBE04-507A Troubleshooting 4.21 Radiation Fin Temperature Rise Remote Controller Display L4 Method of Malfunction Detection A radiation fin temperature rise is detected by checking the radiation fin thermistor with the compressor on. Malfunction Decision Conditions If the radiation fin temperature with the compressor on is above 90°C. If a radiation fin temperature rise takes place 4 times successively, the system will be shut down.
Troubleshooting SiENBE04-507A Troubleshooting Caution Check No.6 Refer to P.146 Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Turn off the power and turn it on again to get the system started. Check No.7 Refer to P.147 Error displayed again? Check No.9 Refer to P.148 YES NO Check No. 6 Check the thermistor resistance value. Fin thermistor Check the radiation fin temperature.
SiENBE04-507A Troubleshooting 4.22 Output Over Current Detection Remote Controller Display L5 Method of Malfunction Detection An output over-current is detected by checking the current that flows in the inverter DC section. Malfunction Decision Conditions A position signal error occurs while the compressor is running. A speed error occurs while the compressor is running. An output over-current input is fed from the output over-current detection circuit to the microcomputer.
Troubleshooting SiENBE04-507A Troubleshooting Caution Check No.7 Refer to P.147 Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. ∗ An output over-current may result from wrong internal wiring. If the wires have been disconnected and reconnected for part replacement, for example, and the system is interrupted by an output over-current, take the following procedure. NO Stop valve fully open? Check No.8 Refer to P.147 Check No.13 Refer to P.
SiENBE04-507A Troubleshooting 4.23 Insufficient Gas Remote Controller Display U0 Method of Malfunction Detection Gas shortage detection I : A gas shortage is detected by checking the compressor running frequency. Gas shortage detection II : A gas shortage is detected by checking the difference between indoor unit heat exchanger temperature and room temperature as well as the difference between outdoor unit heat exchanger temperature and room temperature.
Troubleshooting SiENBE04-507A Troubleshooting Caution Check No.4 Refer to P.144 Check No.6 Refer to P.146 Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Any thermistor disconnected? NO YES Reconnect in position. * Discharge pipe thermistor * Indoor / outdoor unit heat exchanger thermistor * Room temperature thermistor * Outdoor air thermistor YES Open the stop valve. Stop valve closed? NO Check for gas leakage.
SiENBE04-507A Troubleshooting 4.24 Over-voltage Detection Remote Controller Display U2 Method of Malfunction Detection An abnormal voltage rise is detected by checking the specified over-voltage detection circuit. Malfunction Decision Conditions An over-voltage signal is fed from the over-voltage detection circuit to the microcomputer (The voltage is over 400V). The system will be shut down if the error occurs 255 times.
Check SiENBE04-507A 5. Check 5.1 How to Check 5.1.1 Fan Motor Connector Output Check 1. 2. 3. 4. 5. Check No.01 Check connector connection. Check motor power supply voltage output (pins 4-7). Check motor control voltage (pins 4-3). Check rotation command voltage output (pins 4-2). Check rotation pulse input (pins 4-1). S1 7 6 5 4 3 2 1 Motor power supply voltage Unused Unused P.0V (reference potential) Motor control voltage (15 VDC) Rotation command voltage (1~ 6 VDC) Rotation pulse input (R3199) 5.
SiENBE04-507A Check 5.1.3 Four Way Valve Performance Check Check No.5 Turn off the power and turn it on again. Start the heating-mode run. S80 voltage at DC 180-220 V with compressor on? (Fig. 1) ∗ Four way valve coil Cooling / dry : No continuity Heating : Continuity NO Replace the outdoor unit PCB. YES Disconnect the four way valve coil from the connector and check the continuity. Four way valve coil resistance at 3kΩ±0.5kΩ? NO YES Replace the four way valve coil. Replace the four way valve.
Check SiENBE04-507A 5.1.4 Thermistor Resistance Check Check No.6 Remove the connectors of the thermistors on the PCB, and measure the resistance of each thermistor using tester. The relationship between normal temperature and resistance is shown in the graph and the table below. Thermistor R25°C=20kΩ B=3950 Temperature (°C) –20 –15 –10 –5 0 5 10 15 20 25 30 35 40 45 50 211.0 (kΩ) 150 116.5 88 67.2 51.9 40 31.8 25 20 16 13 10.6 8.7 7.
SiENBE04-507A Check 5.1.5 Installation Condition Check Check No.7 Installation condition check Check the allowable dimensions of the air suction and discharge area. Abnormal Change the position of the air discharge grille or the installation location. Normal Does the discharge air from other outdoor unit cause an increase of the suction air temperature? YES Change the position of the air discharge grille or the installation location.
Check SiENBE04-507A 5.1.7 Outdoor Unit Fan System Check Check No.9 DC motor Check the outdoor unit fan system. Outdoor unit fan running? NO Fan motor lead wire connector disconnected? YES Reconnect. NO YES Outdoor unit fan system functioning. Go to Check No. 15. (R2857) 5.1.8 Power Supply Waveforms Check Check No.10 Measure the power supply waveform between pins 1 and 3 on the terminal board, and check the waveform disturbance. Check to see if the power supply waveform is a sine wave (Fig.
SiENBE04-507A Check 5.1.10 Power Transistor Check Check No.13 Note: Check to make sure that the voltage between the terminal of Power transistor (+) and (-) is approx. 0 volt before checking power transistor. < Measuring method > Disconnect the compressor harness connector from the outdoor unit PCB. To disengage the connector, press the protrusion on the connector.
Check 150 SiENBE04-507A Service Diagnosis
SiENBE04-507A Part 7 Removal Procedure 1. Indoor Unit...........................................................................................152 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 1.10 Removal of Air Filter.............................................................................152 Removal of Front Panel........................................................................154 Removal of Front Grille ........................................................................
Indoor Unit SiENBE04-507A 1. Indoor Unit 1.1 Removal of Air Filter Procedure Step Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points 1. Appearance feature Warning Dangerous: High voltage A high voltage is applied to all the electric circuits of this product including thermistors.
SiENBE04-507A Step Indoor Unit Procedure 3. Removing the titanium apatite photocatalytic airpurifying filter 1 The titanium apatite photocatalytic airpurifying filter is attached to the back of the air filter. Points The titanium apatite photocatalytic air-purifying filter is not marked for difference between the right and left sides.
Indoor Unit 1.2 SiENBE04-507A Removal of Front Panel Procedure Step Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points 1. Removing the front panel 1 Put your fingers on the right and left projections of the front panel, and open the panel over the position where it will stop. (R4312) 2 Slide the left rotary shaft to the right and release it.
SiENBE04-507A Step 5 Remove the front panel. Indoor Unit Procedure Points Caution on Mounting When mounting the front panel, fit the right and left rotary shafts one by one into the grooves and fully push them in position.
Indoor Unit 1.3 SiENBE04-507A Removal of Front Grille Procedure Step Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points 1. Removing the service cover 1 Remove the screw of the service cover. Preparation Remove the front panel according to the “Removal of Front Panel.” (R4317) 2 Pull out the service cover diagonally down in the direction of the arrow. (R4318) 3 There are no switches to be set in the field.
SiENBE04-507A Step 2 Remove the screw Indoor Unit Procedure Points covers (one each at the right and left). (R4321) 3 Remove the screws (one each at the right and left). When installing the indoor unit, drive the screws with the horizontal blades open or removed. (R4322) 4 Release the 3 hooks at the top. 5 Put your fingers into the front grille to the depth and lift the grille up to unhook.
Indoor Unit Step 6 Put your fingers into the SiENBE04-507A Procedure Points front grille and lift the grille up to unfasten the centre hook. (R4325) 7 Unfasten the right hook also by putting your fingers into the grille and lifting it. (R4326) a 8 Remove the front grille by tilting the upper part to the front (a) and lifting and pulling the lower part toward yourself (b). Caution on Mounting When mounting the front grille, make sure that the hooks are fastened as they were.
SiENBE04-507A 1.4 Indoor Unit Removal of Horizontal Blades and Vertical Blades Procedure Step Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points 1. Removing the horizontal blade (large) 1 Open the horizontal blade (large). Horizontal blade (large) Cautions on Mounting Mount the large horizontal blade to the upper side and the small horizontal blade to the lower side. Do not put them in the wrong place.
Indoor Unit Step Procedure 2. Removing the horizontal blade (small) 1 Remove the horizontal blade (small) while bending the fixed part at the centre slightly. 2 SiENBE04-507A Points Horizontal blade (small) Unfasten the left side. Key 3 160 Unfasten the key type fixing shaft at the right side.
SiENBE04-507A Step Indoor Unit Procedure Points 3. Removing the vertical blade 1 Unfasten the hooks at the shaft mounting part by pressing them with a flat screwdriver. 2 Unfasten the hooks at the upper 2 positions. 3 Remove the vertical blade toward yourself. Removal Procedure Hooks Six vertical blades are united as a set. (It is impossible to replace only one blade.) The set of blades is not marked for difference between right and left.
Indoor Unit 1.5 SiENBE04-507A Removal of Electrical Box Procedure Step 1 The figure shows the Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points Electrical component box connections of wire harnesses. Preparation Remove the front grille according to the “Removal of Front Grille.” Drip proof plate 2 Remove the screw of the electric wire retaining plate.
SiENBE04-507A Step 5 Remove the drip proof Indoor Unit Procedure Points Put any excess wires behind the power supply lead wire. plate by removing the screw. Drip proof plate 6 Replace the heat exchanger thermistor. Use care not to lose the retainer of thermistor. Heat exchanger thermistor Retainer of thermistor 7 Retainer of thermistor Heat exchanger thermistor Disconnect the earth wire by removing the screw. Earth wire 8 Remove the screw of the electrical box.
Indoor Unit Step 9 Release the hook at the upper far side by pressing it from above and pulling the box toward yourself. 10 Lift up the electrical box and pull it toward yourself. 11 When the connector of the fan motor [S1] is removed, the electrical box can be dismounted. 164 SiENBE04-507A Procedure Points Hook There is a hook also at the lower part of the back. When mounting the box, make sure that it is securely fastened.
SiENBE04-507A 1.6 Indoor Unit Removal of PCB Procedure Warning Step Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure Points 1. Removing the shelter 1 The figure shows the appearance of the electrical box. Preparation Remove the electrical box according to the “Removal of Electrical Box.” Signal receiver PCB 2 Signal receiver unit Open the shelter (at the back).
Indoor Unit Step SiENBE04-507A Procedure Points 3. Removing the terminal board 1 Dismount the terminal board by removing the screw. Terminal board 4. Removing the signal receiver unit 1 Remove the signal receiver unit by unfastening the hooks (one each at the right and left). Signal receiver unit Hook Hook Hook 2 Remove the electrical box (cover) by unfastening the hooks at 2 positions.
SiENBE04-507A Step 3 Remove the electrical Indoor Unit Procedure Points Hook box by sliding it to the left. Hook 4 Disconnect the wire harness. 5. Removing the signal receiver PCB 1 Remove the signal receiver PCB by opening the hooks at 3 positions. Hook Hook Hook Signal receiver PCB 2 Disconnect the connector from the signal receiver PCB.
Indoor Unit Step SiENBE04-507A Procedure Points 6. Removing the INTELLIGENT EYE PCB 1 Remove the INTELLIGENT EYE fixing plate by twisting it clockwise. 2 INTELLIGENT EYE fixing plate (R4363) Remove the INTELLIGENT EYE PCB by unfastening the hook. Hook 3 Disconnect the connector from the INTELLIGENT EYE PCB.
SiENBE04-507A Indoor Unit Step Procedure Points 7. Removing the display PCB 1 The figure shows the connection of wire harness for the display PCB. Display PCB 2 Remove the display PCB by unfastening the 2 hooks. Hook 3 Disconnect the connector from the display PCB. Green LED1 Red LED2 Green LED3 8. Removing the control PCB 1 Dismount the control PCB by removing the 2 hooks.
Indoor Unit SiENBE04-507A Step 2 Lift up the bottom of the Procedure Points control PCB and pull it out. When mounting the control PCB, make sure that it is fixed by upper hooks. Fixing hook Fixing hook 3 The figures show the names of the PCB component parts. Lead-free solder (PbF) is used for the PCB. When replacing the PCB, use the specific solder and soldering iron.
SiENBE04-507A 1.7 Indoor Unit Removal of Drain Pan Unit Procedure Step Warning Be sure to turn off all power supplies at least 10 min. before disassembling work. Procedure Points 1. Removing the drain pan unit 1 Lift up the indoor unit body slightly and pull out the drain hose. (In the case of left piping) Preparation Remove the electrical box according to the “Removal of Electrical Box.” Inserting of the wooden base facilitates the removing work.
Indoor Unit Step 4 Remove the drain pan SiENBE04-507A Procedure Points Caution on Mounting Make sure that the hook at the left side is fitted in the groove. toward yourself from the indoor unit body. Hook 2. Removing the swing motor 1 Remove the screw of the swing motor. 2 172 Swing motor Pull out the swing motor.
SiENBE04-507A Step Indoor Unit Procedure Points 3. Removing the crank assembly 1 Remove the screw of the crank assembly. 2 Crank assembly Remove the crank assembly by unfastening the hook. Hook 3 The figure shows the position of the hook when the crank assembly has been removed. Hook inserting part 4. How to connect the drain hose in right piping 1 Pull out the drain hose from its right side connection.
Indoor Unit Step 2 Remove the drain cap SiENBE04-507A Procedure Points (Left side) located at the left side of the drain pan unit. Drain cap 3 4 174 Insert the drain hose to the left side. Press the removed drain plug into the right side with an Allen wrench (4mm). (Left side) Use a 4mm Allen wrench. (Right side) Caution Do not thrust in the drain plug with a sharp-pointed tool like a screwdriver. (The drain plug may be broken, resulting in water leakage.
SiENBE04-507A 1.8 Indoor Unit Removal of Fan Motor Procedure Step 1 Undo the fan motor lead wires from the hooks. Warning Be sure to turn off all power supplies at least 10 min. before disassembling work. Procedure Points Preparation Remove the drain pan unit according to the “Removal of Drain Pan Unit.” You can remove the fan motor with the heat exchanger left. It is easy to clean up the heat exchanger. 2 Loosen and remove the fan rotor lock screw.
Indoor Unit Step 4 Unfasten the hook (a) SiENBE04-507A Procedure Points of the fan motor fixing plate with your thumb. Hook(c) Hook(a) 5 Unfasten the hook (c). Hook(c) Hook(a) 6 176 Remove the fan motor.
SiENBE04-507A 1.9 Removal of Heat Exchanger Procedure Step Warning Be sure to turn off all power supplies at least 10 min. before disassembling work. Procedure 1. Disconnecting the refrigerant pipe 1 Remove the screws which fix the heat exchanger to the installation plate. 2 Indoor Unit Lift the indoor unit by a wooden base. 3 Lift up the indoor unit body slightly and pull out the drain hose. (In the case of left piping) 4 Disconnect the pipe connection with 2 pair of spanners.
Indoor Unit Step SiENBE04-507A Procedure Points 2. Removing the indoor unit 1 Remove the indoor unit from the installation plate. 3. Removing the heat exchanger 1 Unfasten the hook of the pipe fixing plate at the back of the unit and pull out the pipe. 2 3 Widen the auxiliary pipe by about 10-20 degrees. Unbending angle: 10-20 deg. Unfasten the lower hook with a flat screwdriver.
SiENBE04-507A Indoor Unit Step 4 After unfastening the Procedure Points When mounting the heat exchanger, make sure that the hook (left) is fastened. lower hooks, hold up the heat exchanger by its left side and lift it up toward yourself. Hook (left) Hook (left) 5 6 When the left side is lifted, the hook at the right side comes off position. Hook(right) Remove the heat exchanger.
Indoor Unit SiENBE04-507A 1.10 Removal of Fan Rotor Procedure Step Warning Be sure to turn off all power supplies at least 10 min. before disassembling work. Procedure 1. Removing the drip proof plate 1 Dismount the drip proof plate (right) by removing the 2 screws. 2 Unhook the fan motor wire harness. 3 Remove the 2 screws of the fan motor fixing plate. Points Drip proof plate (right) Preparation Remove the heat exchanger according to the “Removal of Heat Exchanger.
SiENBE04-507A Step 4 Unfasten the hook (a) Indoor Unit Procedure Points of the fan motor fixing plate with your thumb and unfasten the hook (b). Hook (c) Hook (a) 5 The fan motor fixing plate can be removed from the unit when the hook (c) is unfastened. Fan motor fixing plate Hook (c) Hook (a) Hook (b) 2. Removing the fan rotor 1 Dislocate the fan rotor by sliding it to the right. Fan rotor 2 Remove the fan rotor by loosening the lock screw.
Indoor Unit Step SiENBE04-507A Procedure Points 3. Removing the bearing 1 Remove the screw of the drip proof plate (left). 2 The drip proof plate can be removed when the hooks at 2 positions are unfastened. Hook Hook 3 Press the rubber-made bearing with force from outside. 4 Remove the bearing.
SiENBE04-507A Outdoor Unit 2. Outdoor Unit 2.1 Removal of Panels and Fan Motor Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure Step Points 1. Features Handle Take care not to cut your finger by the fins of the heat exchanger. Outdoor air thermistor 1 Loosen the screw of the stop valve cover. Pull down the stop valve cover and remove it. Stop valve cover Shelter The stop valve cover is united with the shelter.
Outdoor Unit SiENBE04-507A Procedure Step 2. Remove the panels. 1 Loosen the 3 screws (front, right, left) and lift the top panel. 2 Remove the drip proof plate. 3 Disconnect the connector for fan motor (S70). Points Top panel Drip proof plate The fan motor is united with the front panel. S70 4 Loosen the 5 screws of the front panel.
SiENBE04-507A Outdoor Unit Procedure Step 5 Points Undo the hooks. Pull and remove the front panel. The front panel has 4 hooks. The fan motor is united with the front panel. Hooks 3. Remove the fan motor. 1 Unscrew the washerfitted nut (M10) of the propeller fan with a spanner. The screw has reverse winding. Propeller fan 2 Remove the propeller fan. Align mark of the propeller fan with D-cut section of the motor shaft when reassembling.
Outdoor Unit Procedure Step 3 SiENBE04-507A Loosen the 2 screws and lift the bell mouth to undo the hooks. Remove the bell mouth. Points Bell mouth Hooks 4 Loosen the fixing hooks and release the lead wire. Put the lead wire through the back of the motor when reassembling.
SiENBE04-507A Procedure Step 5 Outdoor Unit Points Loosen the 4 screws to remove the fan motor. M4×16 DC fan motor Fan motor 6 Loosen the 2 screws to remove the fan motor fixing frame.
Outdoor Unit SiENBE04-507A Procedure Step Points 4. Remove the right side panel. 1 Loosen the 2 screws on the rear side. 2 Loosen the 3 screws on the right side. Right side panel 3 188 Loosen the screw and lift the connection port to remove.
SiENBE04-507A Step Outdoor Unit Procedure Points When reassembling, make sure to fit the hook.
Outdoor Unit 2.2 SiENBE04-507A Removal of Electrical Box Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure Step Points Remove the top panel. Disconnect the connector for fan motor. 1. Remove the electrical box. 1 Disconnect the 2 reactor harnesses. 2 Disconnect the relay connector for compressor lead wire. 3 Disconnect the connector for four way valve (S80).
SiENBE04-507A Procedure Step 4 Outdoor Unit Points Release the discharge pipe thermistor. Pay attention so as not to lose the clip for thermistor. Thermistor Piping Clip Discharge pipe thermistor 5 Release the heat exchanger thermistor. Pay attention so as not to lose the clip. Clip Heat exchanger thermistor 6 Lift and remove the electrical box.
Outdoor Unit 2.3 Removal of Reactor and Partition Plate Procedure Step Remove the outer panels. Remove the electrical box. 1. Remove the reactor. 1 Loosen the screw. Lift and remove the reactor. 2. Remove the partition plate. 1 Loosen the 2 screws. 192 SiENBE04-507A Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work.
SiENBE04-507A Outdoor Unit Procedure Step 2 Points The partition plate has a hook on the lower side. Lift and pull the partition plate to remove. When reassembling, fit the lower hook into the bottom frame.
Outdoor Unit 2.4 SiENBE04-507A Removal of Sound Blanket Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure Step Points Remove the outer panels. Remove the electrical box. 1. Remove the sound blanket. 1 Untie the strings and open the sound blanket. Sound blanket 2 Lift and remove the sound blanket (body) as it is opened. 3 Lift and remove the sound blanket (top).
SiENBE04-507A Outdoor Unit Procedure Step 4 Pull the sound blanket (inner) out. 5 Pull the sound blanket (bottom) out. Removal Procedure Points Since the piping ports on the sound blanket are torn easily, remove the blanket carefully.
Outdoor Unit 2.5 SiENBE04-507A Removal of Four Way Valve Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure Step 1. Remove the peripheries. Remove the four way valve and the sheets of putty so as not to burn them. 1 Remove the terminal cover. Points Terminal cover Be careful so as not to burn the compressor terminals or the name plate. Red (U) Make a note.
SiENBE04-507A Procedure Step 3 Outdoor Unit Points Remove the sheets of putty. Cut the pipe with a tube cutter. Tube cutter 4 Heat up the brazed part and withdraw the piping with pliers. Removal Procedure Provide a protective sheet or a steel plate so that the brazing flame cannot influence peripheries. Be careful so as not to break the pipes by pressing it excessively by pliers when withdrawing it.
Outdoor Unit 2.6 Removal of Compressor Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure Step 1. Remove the compressor. 1 Unscrew the nut of the compressor. Before working, make sure that the refrigerant is empty in the circuit. Be sure to apply nitrogen replacement when heating up the brazed part. 2 SiENBE04-507A Heat up the brazed part of the discharge side and disconnect.
SiENBE04-507A Outdoor Unit Procedure Step 3 Heat up the brazed part of the suction side and disconnect. 4 Lift the compressor up and remove it.
Outdoor Unit 2.7 Removal of PCB Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure Step 1. Remove the PCB. 1 Feature of the PCB 2 Loosen the screw on the terminal board. 3 Release the earth terminal. 200 SiENBE04-507A Points You can remove the PCB when you disconnect the read wires on the terminal board without removing the electrical box. PbF (Pb free brazing) is adopted.
SiENBE04-507A Outdoor Unit Procedure Step 4 Loosen the 4 screws. 5 Undo the 3 hooks on the upper side. 6 Lift and pull out the PCB.
Outdoor Unit Procedure Step 7 SiENBE04-507A Feature of the PCB S70: fan motor S80: four way valve S90: thermistor (outdoor air, heat exchanger, discharge pipe) PbF (Pb free soldering) S90 Glass fuse 3.
SiENBE04-507A Part 8 Others 1. Others .................................................................................................204 1.1 Test Run from the Remote Controller ..................................................204 1.2 Jumper Settings ...................................................................................
Others SiENBE04-507A 1. Others 1.1 Test Run from the Remote Controller For Heat pump In cooling mode, select the lowest programmable temperature; in heating mode, select the highest programmable temperature. Trial operation may be disabled in either mode depending on the room temperature. After trial operation is complete, set the temperature to a normal level.
SiENBE04-507A 1.2 Others Jumper Settings 1.2.1 When Two Units are Installed in One Room When two indoor units are installed in one room, the two wireless remote controllers can be set for different addresses. How to set the different addresses Control PCB of the indoor unit (1) Remove the front grille. (3 screws) (2) Remove the electrical box (1-screw). (3) Remove the drip proof plate. (4 tabs) (4) Cut the address jumper JA on the control PCB.
Others 206 SiENBE04-507A Others
SiENBE04-507A Part 9 Appendix 1. Piping Diagrams..................................................................................208 1.1 Indoor Units ..........................................................................................208 1.2 Outdoor Units .......................................................................................209 2. Wiring Diagrams..................................................................................211 2.1 Indoor Units ...................................
Piping Diagrams SiENBE04-507A 1. Piping Diagrams 1.1 Indoor Units FTKS20/25/35DVMW(L), FTKS20/25/35DVMW9, FTXS20/25/35DVMW(L), FTXS20/25/35DVMW9, FTKS20/25/35D2VMW(L), FTKS20/25/35DAVMW(L), FTXS20/25/35D2VMW(L), FTXS20/25/35DAVMW(L), FTKS20/25/35D3VMW(L) FTXS20/25/35D3VMW(L) INDOOR UNIT INDOOR UNIT HEAT EXCHANGER MAFFLER ASSY 7.0CuT MAFFLER ASSY FIELD PIPING (6.4CuT) THERMISTOR ON HEAT EXCH. 6.4CuT 6.4CuT CROSS FLOW FAN FIELD PIPING (6.4CuT) M FAN MOTOR FIELD PIPING (9.
SiENBE04-507A 1.2 Piping Diagrams Outdoor Units 1.2.1 Cooling Only RKS20/25DVMB, RKS20/25D2VMB, RKS20/25D3VMB OUTDOOR UNIT OUTDOOR TEMPERATURE THERMISTOR 9.5CuT 7.0CuT HEAT EXCHANGER 7.0CuT 7.0CuT 6.4CuT 6.4CuT MUFFLER WITH FILTER M MOTOR OPERATED VALVE MUFFLER WITH FILTER 9.5CuT PROPELLER FAN φ. 4.0×ID. 2.0CuT HEAT EXCHANGER THERMISTOR 9.5CuT FOUR WAY VALVE NORMALLY OFF 9.5CuT 7.9CuT 6.4CuT MUFFLER WITH FILTER LIQUID STOP VALVE MUFFLER FIELD PIPING (6.4CuT) 7.
Piping Diagrams SiENBE04-507A 1.2.2 Heat Pump RXS20/25DVMB, RXS20/25D2VMB, RXS20/25D3VMB OUTDOOR UNIT 9.5CuT 7.0CuT OUTDOOR TEMPERATURE THERMISTOR HEAT EXCHANGER 7.0CuT 7.0CuT 6.4CuT 6.4CuT MUFFLER WITH FILTER M MOTOR OPERATED VALVE MUFFLER WITH FILTER 9.5CuT PROPELLER FAN φ. 4.0×ID. 2.0CuT HEAT EXCHANGER THERMISTOR 9.5CuT 7.9CuT FOUR WAY VALVE ON : HEATING 9.5CuT 6.4CuT MUFFLER WITH FILTER FIELD PIPING LIQUID STOP VALVE MUFFLER 6.4CuT 7.9CuT DISCHARGE PIPE THERMISTOR 9.5CuT 9.
SiENBE04-507A Wiring Diagrams 2. Wiring Diagrams 2.1 Indoor Units FTK(X)S20/25/35DVMBW(L), FTK(X)S20/25/35DVMW9, FTK(X)S20/25/35D2VMW(L), FTK(X)S20/25/35DAVMW(L), FTK(X)S20/25/35D3VMW(L) FIELD WIRING. PCB3 S27 S26 PCB1 ∼ LED1 H1P H1 F1U ∼ RECTIFIER 1 X1M 2 BLK 1 3 WHT 2 RED 3 3.15A V1 H2 LED2 H2P LED3 H3P H3 TRANSMISSION CIRCUIT CAUTION GRN/ YLW NOTE THAT OPERATION WILL RESTART AUTOMATICALLY IF THE MAIN POWER SUPPLY IS CAUTION TURNED OFF AND THEN BACK ON AGAIN.
Wiring Diagrams 212 SiENBE04-507A Appendix
SiENBE04-507A Index Numerics 00 .........................................................................111 3-minutes standby ............................................58, 65 A A1 .........................................................................112 A5 .........................................................................113 A6 .........................................................................115 address setting jumper ...........................................
SiENBE04-507A L4 ...................................................................137 L5 ...................................................................139 P4 ..................................................................133 U0 ..................................................................141 U2 ..................................................................143 U4 ..................................................................118 UA ......................................................
SiENBE04-507A P P4 .........................................................................133 partition plate ........................................................192 PCB ..............................................................165, 200 PI control ................................................................63 piping diagrams ....................................................208 position sensor abnormality .................................131 power failure recovery function ................
SiENBE04-507A iv Index
SiENBE04-507A Drawings & Flow Charts A ARC433A .............................................................108 automatic air flow control .......................................49 automatic operation ...............................................51 auto-swing ..............................................................48 C comfort airflow mode ..............................................48 compressor lock ...................................................122 compressor protection function .......
SiENBE04-507A R radiation fin temperature rise ...............................137 remote controller ..................................................108 S service check function ..........................................108 signal receiver PCB ...............................................41 signal transmission error (between indoor and outdoor units) ..............118 T target discharge pipe temperature control .............72 thermistor or related abnormality (indoor unit) .....
SiENBE04-507A Daikin Europe N.V. is approved by LRQA for its Quality Management System in accordance with the ISO9001 standard. ISO9001 pertains to quality assurance regarding design, development, manufacturing as well as to services related to the product.