SiUS281117 Service Manual RZR-P, RZQ-P(9) Series Cooling Only / Heat Pump R-410A 60Hz
SiUS281117 RZR-P, RZQ-P(9) Series Cooling Only / Heat Pump R-410A 60Hz ED Reference For items below, please refer to Engineering Data. For except FTQ No. 1 2 3 Item Specification - Cooling Only Specification - Heat Pump Option List ED No. EDUS281120 EDUS281120 EDUS281120 Page p. 7-13 p. 14-20 p. 100-102 Remarks No. 1 2 Item Specification - Heat Pump Option List ED No. EDUS281008 EDUS281008 Page Remarks For FTQ p. 4 p. 60 1. Safety Considerations ..................................................
SiUS281117 2. Functional Parts Layout ........................................................................10 2.1 RZR18 / 24 / 30PVJU RZQ18 / 24PVJU9 RZQ30PVJU .......................................................................................... 10 Part 3 Remote Controller ........................................................... 11 1. Wired Remote Controller ......................................................................12 1.1 1.2 1.3 1.4 Applicable Models ..............................
SiUS281117 6.3 6.4 6.5 6.6 6.7 6.8 6.9 6.10 Room Temperature Thermistor in Remote Controller............................ 52 Thermostat Control with Operation Mode Set to "AUTO" ...................... 54 Freeze-up Prevention ............................................................................ 55 View of Operations of Swing Flaps ........................................................ 56 Hot Start Control (In Heating Operation Only) ....................................... 57 Heater Control (FTQ) ..
SiUS281117 2.19 2.20 2.21 2.22 2.23 2.24 2.25 2.26 2.27 2.28 2.29 2.30 2.31 2.32 2.33 2.34 2.35 2.36 2.37 2.38 2.39 2.40 2.41 2.42 2.43 2.44 2.45 2.46 2.47 2.48 Suction Air Thermistor Abnormality ..................................................... 127 Humidity Sensor System Abnormality.................................................. 128 Room Temperature Thermistor in Remote Controller Abnormality...... 129 Outdoor Unit PCB Abnormality ............................................................
Safety Considerations SiUS281117 1. Safety Considerations Read these SAFETY CONSIDERATIONS carefully before performing any repair work. Comply with these safety symbols without fail.Meanings of DANGER, WARNING, CAUTION, and NOTE Symbols: DANGER .............. Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. WARNING ............ Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. CAUTION ......
SiUS281117 Safety Considerations • Do not clean the air conditioner by splashing water on it. Washing the unit with water may cause an electrical shock. • Check the grounding and repair it if the equipment is not properly grounded. Improper grounding may cause an electrical shock. • Ground the unit when repairing equipment in a humid or wet place to avoid electrical shocks. • Measure the insulation resistance after the repair.
SiUS281117 Part 1 General Information 1. Model Names and Power Supply............................................................2 1.1 Cooling Only ............................................................................................ 2 1.2 Heat Pump ............................................................................................... 2 2. External Appearance ..............................................................................3 2.1 Indoor Units....................................
SiUS281117 Part 2 Refrigerant Circuit 1. Refrigerant Circuit ...................................................................................6 1.1 RZR18 / 24 / 30PVJU RZQ18 / 24PVJU9 RZQ30PVJU ............................................................................................ 6 1.2 RZR36 / 42PVJU RZQ36 / 42PVJU(9) ................................................................................. 8 2. Functional Parts Layout .......................................................................
SiUS281117 Model Names and Power Supply 1. Model Names and Power Supply 1.1 Cooling Only Indoor unit FCQ18PAVJU FCQ24PAVJU Ceiling mounted cassette type FCQ30PAVJU (Round flow) FCQ36PAVJU FCQ42PAVJU FHQ18PVJU FHQ24PVJU Ceiling suspended type FHQ30PVJU FHQ36MVJU FHQ42MVJU FAQ18PVJU Wall mounted type FAQ24PVJU FBQ18PVJU FBQ24PVJU Ceiling mounted duct type FBQ30PVJU FBQ36PVJU FBQ42PVJU Note: 1.2 Power supply, Compatibility symbol VJU 1. : New model or changed model 2.
External Appearance SiUS281117 2. External Appearance 2.
SiUS281117 2.2 External Appearance Remote Controller Wired Type 77 F 69 F 77 F BRC1D71 2.
SiUS281117 Refrigerant Circuit 1. Refrigerant Circuit 1.1 RZR18 / 24 / 30PVJU RZQ18 / 24PVJU9 RZQ30PVJU No. in refrigerant Electric system Symbol diagram Major Function A M1C Inverter compressor (INV.) Inverter compressor is operated on frequencies between 52 Hz and 177 Hz by using the inverter. 17 steps D M1F Inverter fan Because the system is an air heat exchange type, the fan is operated at 8-step rotation speed by using the inverter.
Refrigerant Circuit Indoor unit Fan Filter Electronic Indoor heat exchanger Field piping f 5/8 Stop valve (with service port 5/16" flare) Filter Field piping f 3/8 Filter R3T G R5T 5 A Solenoid valve SV Compressor accumulator Accumulator Capillary tube 3 Solenoid valve J S Pressure regulating valve Electronic Fusible plug T E 1 N P High pressure switch S1PH High pressure sensor S1NPH Check valve Muffler M 4 R4T * R10T Fan Service port (5/16" flare) M D Outdoor
SiUS281117 1.2 Refrigerant Circuit RZR36 / 42PVJU RZQ36 / 42PVJU(9) No. in refrigerant Electric system Symbol diagram Major Function A M1C Inverter compressor (INV.) Inverter compressor is operated on frequencies between 36 Hz and 195 Hz by using the inverter. 31 steps D M1F M2F Inverter fan Because the system is of an air heat exchange type, the fan is operated at 8-step rotation speed by using the inverter.
Capillary 5 R5T Service port R4T 4 T R3T O A Compressor R2T Filter Solenoid H 3 2 Pressure regulating valve Fusible plug Low pressure S Capillary P High pressure E Electronic expansion valve Stop valve (With service port on field piping side 5/16'' flare connection) Accumulator 7 R7T F S1NPL Double pipe heat exchanger S1PH Refrigerant Circuit D Filter G Solenoid N Fan High pressure sensor S1NPH M Four way valve D Outdoor unit Heat exchanger 6 Service port R6T 8
SiUS281117 Functional Parts Layout 2. Functional Parts Layout 2.
SiUS281117 Part 3 Remote Controller 1. Wired Remote Controller ......................................................................12 1.1 1.2 1.3 1.4 Applicable Models .................................................................................. 12 Names and Functions ............................................................................ 13 MAIN/SUB Setting when Using 2 Remote Controllers........................... 17 Centralized Control Group No. Setting .....................................
SiUS281117 Wired Remote Controller 1. Wired Remote Controller 1.
Wired Remote Controller 1.2 SiUS281117 Names and Functions 1.2.1 BRC1D71 6 3 23 7 8 9 2 1 10 4 11 12 14 22 17 25 16 13 15 18 19 20 21 29 5 24 33 26 35 27 36 37 28 30 31 34 32 Figure 1 1 ON/OFF BUTTON Press the ON/OFF button to start or stop the system. 2 OPERATION LAMP The operation lamp lights up during operation or blinks if an error occurs.
SiUS281117 15 ACTION ICONS 1 2 3 4 5 These icons indicate the actions for each day of the schedule timer. 16 OFF ICON This icon indicates that the OFF action is selected when programming the schedule timer. 17 INSPECTION REQUIRED and These icons indicate that inspection is required. Consult your installer. 18 SET TEMPERATURE DISPLAY This indicates the current set temperature of the installation (not shown in LIMIT operation or in FAN or DRY mode). 19 SETTING Not used, for service purposes only.
Wired Remote Controller SiUS281117 1.2.2 BRC1E71 1. Operation mode selector button 11. LCD (with backlight) 4. Up button 5. Down button 6. Right button 7. Left button 9. Operation lamp 8. On/Off button 3. Menu/OK button 10. Cancel button 2. Fan speed control button Note: Functions other than basic operation items (i.e., On/Off, Operation mode selector, Fan speed control, and temperature settings) are set from the menu screen.
SiUS281117 Wired Remote Controller 6. Right button Used to highlight the next items on the right-hand side. Each screen is scrolled in the right-hand direction. 7. Left button Used to highlight the next items on the left-hand side. Each screen is scrolled in the left-hand direction. 8. On/Off button Press this button and system will start. Press this button again to stop the system. 9. Operation lamp (Green) This lamp illuminates solid during normal operation.
Wired Remote Controller 1.3 SiUS281117 MAIN/SUB Setting when Using 2 Remote Controllers Situation The MAIN/SUB setting is necessary when 1 indoor unit is controlled by 2 remote controllers. When you use 2 remote controllers (control panel and separate remote controller), set one to MAIN and the other to SUB. Setting The remote controllers are factory setting to MAIN, so you only have to change one remote controller from MAIN to SUB.
SiUS281117 Wired Remote Controller 1.3.2 BRC1E71 The designation of the main and sub remote controllers can be swapped. Note that this change requires turning the power OFF and then ON again. Basic screen is displayed. Press and hold Cancel button for 4 seconds or more. Select "Switch Main Sub Controller" and press Menu/OK button. Service Select "Main RC" or "Sub RC" using the / (Up/Down) buttons, and then press Menu/OK button. Press Cancel button once. settings menu is displayed.
Wired Remote Controller 1.4 SiUS281117 Centralized Control Group No. Setting 1.4.1 BRC1D71 In order to conduct the centralized remote control using the centralized remote controller and the unified ON/OFF controller, Group No. settings should be made by group using the operating remote controller. Make Group No. settings for centralized remote control using the operating remote controller. 1.
SiUS281117 Wired Remote Controller 1.4.2 BRC1E71 In order to conduct the centralized remote control using the centralized remote controller and the unified ON/OFF controller, Group No. settings should be made by group using the operating remote controller. Make Group No. settings for centralized remote control using the operating remote controller. Basic screen is displayed. Press Cancel button once. Press and hold Cancel button for 4 seconds or more.
Wired Remote Controller SiUS281117 Basic screen is displayed. Press Cancel button once. Press and hold Cancel button for 4 seconds or more. Select "Group Address" and then press Menu/OK button. Service settings menu is displayed. Press Cancel button once. Item 2 is displayed. Select "Group Address (Group)" and then press Menu/OK button. Press Cancel button once. Item 2 is displayed.
SiUS281117 Wireless Remote Controller 2. Wireless Remote Controller 2.1 Applicable Models Model Series Remote controller 2.
Wireless Remote Controller 1 SiUS281117 14 AIRFLOW DIRECTION ADJUST BUTTON DISPLAY “ ” (SIGNAL TRANSMISSION) OPERATION MODE SELECTOR BUTTON 15 Press this button to select OPERATION MODE. This lights up when a signal is being transmitted. DISPLAY “ “ ”“ ”“ ”“ ” (OPERATION MODE) 2 This display shows the current OPERATION MODE. For Cooling Only type, “ ” (Auto) and “ ” (Heating) are not installed. 3 DISPLAY “ H M L ” (SET TEMPERATURE) C This display shows the set temperature. hr.
SiUS281117 2.3 Wireless Remote Controller Address and MAIN/SUB Setting Introduction To set the wireless remote controller, you have to set the address for: The receiver of the wireless remote controller The wireless remote controller. Setting the Address for the Receiver The address for the receiver of the wireless remote controller is factory setting to 1. To change this setting, proceed as follows: Set the wireless address switch (SS2) on the PCB according to the table below. Unit No. No. 1 No.
Service Mode SiUS281117 3. Service Mode 3.1 BRC1D71 3.1.1 Display Service Data Unit No. Mode No. Second Code No. Field Setting Mode First Code No. 3 4 1 2 7 6 5 3 1. Enter the field setting mode. Press the INSPECTION / TEST operation button for 4 seconds or more. 2. Enter the service mode. After having entered the field setting mode, press the INSPECTION / TEST operation button for 4 seconds or more. 3. Select the mode No. Set the desired mode No. with the up/down temperature setting button.
SiUS281117 Service Mode 3.1.2 Service Setting Mode No. Unit No. Mode No. Second Code No. Field Setting Mode First Code No. 3 4 1 2 6 5 5 3 Field Setting Mode Second Code No. First Code No. 1. Enter the field setting mode. Continue to press the INSPECTION / TEST operation button for a minimum of 4 seconds. 2. Enter the maintenance mode. After having entered the field setting mode, continue to press the INSPECTION / TEST operation button for a minimum of 4 seconds. 3. Select the mode No.
Service Mode SiUS281117 Mode No. 43 Function Forced Fan ON Content and Operation Example of Remote Controller Display Method Turns the fan ON for each unit UNIT No. individually. SETTING Individual Setting 44 Sets fan speed and airflow direction for each unit individually when using group control. Settings are made using the “airflow direction adjust” and “fan speed adjust” buttons. Fan speed 45 0: Upper Airflow direction UNIT No. CODE Unit No. Change 1 : Low 3 : High Changes unit No.
SiUS281117 3.2 Service Mode BRC1E71 Operating the remote controller allows service data to be acquired and various services to be set. Basic screen is displayed. Press Cancel button once. Press and hold Cancel button for 4 seconds or more. Press Cancel button. Service settings menu is displayed. Press and hold Cancel button for 4 seconds or more. Select the desired item from the Maintenance menu, and then press Menu/OK button. Maintenance menu is displayed. Maintenance Menu 2.1. Model Name 2.2.
Service Mode SiUS281117 Maintenance Menu 2.3. Indoor Unit Status Item 2 10.FLOAT 11.T1/T2 12.Unit No. 13.Th1 14.Th2 15.Th3 16.Th4 17.Th5 18.Th6 2.4. Outdoor Unit Status 1. Unit No. 2. FAN step 3. COMP 4. EV1 2.5. Forced Defrost 2.6. Error Display 2.7. Swap Unit No. 2.8. Addressed Sensor Value Remote Controller 5. SV1 6. Th1 7. Th2 8. Th3 9. Th4 10.Th5 11.Th6 1. Forced defrost ON 2. Forced defrost OFF 1. Display Warning ON 2. Display Warning OFF 3. Display Error ON 4. Display Error OFF 1.
SiUS281117 Inspection Mode 4. Inspection Mode 0 Unit L0 Error code Inspection Error code blinks when an error occurs. Normal display (No display) INSPECTION/TEST Press the button. operation 0 7 1...Capacity code F...Indoor unit system code C...Indoor unit type code J...Progression code 0 L0 Unit Error code Inspection Example of capacity code display Inspection mode INSPECTION/TEST Press the button.
SiUS281117 Part 4 Function and Control 1. Function General ..................................................................................32 1.1 Operation Mode ..................................................................................... 32 2. Basic Control.........................................................................................33 2.1 2.2 2.3 2.4 Normal Operation................................................................................... 33 Compressor PI Control ........
SiUS281117 Function General 1. Function General 1.
Basic Control SiUS281117 2. Basic Control 2.1 Normal Operation Cooling Parts Name Symbol Electric Symbol Operation RZR18/24/30P RZR36/42P RZQ18/24/30P RZQ36/42P RZR18/24/30P RZR36/42P RZQ18/24/30P RZQ36/42P Remarks Compressor (INV.
SiUS281117 2.2 Basic Control Compressor PI Control Compressor PI Control Te: Low pressure equivalent saturation temperature (°F) TeS: Target Te value (Varies depending on Te setting, operating frequency, etc.) Tc: High pressure equivalent saturation temperature (°F) TcS: Target Tc value (Varies depending on Tc setting, operating frequency, etc.
Basic Control SiUS281117 RZR36/42P, RZQ36/42P INV. STn (Full-load) 1 2 3 4 5 6 52.0Hz 7 57.0Hz 8 62.0Hz 9 68.0Hz 10 74.0Hz INV. (Unload) 36.0Hz 39.0Hz 43.0Hz 47.0Hz 52.0Hz 57.0Hz 64.0Hz 71.0Hz 78.0Hz STn 11 12 13 14 15 16 17 18 19 20 INV. (Full-load) 80.0Hz 86.0Hz 92.0Hz 98.0Hz 104.0Hz 110.0Hz 116.0Hz 122.0Hz 128.0Hz 134.0Hz INV. (Unload) STn 21 22 23 24 25 26 27 28 29 30 31 INV. (Full-load) 140.0Hz 146.0Hz 152.0Hz 158.0Hz 164.0Hz 170.0Hz 175.0Hz 180.0Hz 185.0Hz 190.0Hz 195.0Hz INV.
SiUS281117 2.4 Basic Control Cooling Operation Fan Control In cooling operation with low outdoor air temperature, this control is used to provide the adequate amount of circulation air with liquid pressure secured by high pressure control using outdoor unit fan.
Special Control SiUS281117 3. Special Control 3.1 Startup Control On activation, following control is performed to lighten load of the compressor by back liquid and the like. Also, the position of the four-way valve is defined. Pc: High-pressure sensor detection value Pe: Low-pressure sensor detection value 3.1.1 Startup Control in Cooling Symbol Electric Symbol RZR18/24/32P RZR36/42P RZQ18/24/30P RZQ36/42P Compressor (INV.
SiUS281117 3.2 Special Control Oil Return Operation Oil flown from the compressor to the side of system is collected by oil return operation, in case of that oil in the compressor runs down. 3.2.1 Oil Return Operation in Cooling Tc: High pressure equivalent saturation temperature Te: Low pressure equivalent saturation temperature Ts: Suction pipe temperature detected by thermistor [Conditions to start] The cooling oil return operation is started referring following conditions.
Special Control SiUS281117 3.2.2 Oil Return Operation in Heating Pc: High-pressure sensor detection value Pe: Low-pressure sensor detection value Tc: High-pressure equivalent saturation temperature Te: Low-pressure equivalent saturation temperature Ts: Suction pipe temperature detected by thermistor [Conditions to start] The heating oil return operation is started referring following conditions.
SiUS281117 3.3 Special Control Defrosting Operation Pc: High-pressure sensor detection value Pe: Low-pressure sensor detection value Tc: High-pressure equivalent saturation temperature Te: Suction pipe equivalent saturation temperature The defrost operation is performed to solve frost on the outdoor unit heat exchanger when heating, and the heating capacity is recovered. [Conditions to start] The defrost operation is started referring following conditions.
Special Control 3.4 SiUS281117 Pump Down Residual Operation Pe: Low pressure sensor detection value Td: Discharge pipe temperature When activating compressor, if the liquid refrigerant remains in the heat-exchanger, the liquid enters into the compressor and dilutes oil therein resulting in decrease of lubricity. Therefore, the pump down residual operation is performed to collect the refrigerant in the heatexchanger when the compressor is down. 3.4.
SiUS281117 3.5 Special Control Restart Standby Ta: Outdoor air temperature Restart is stood by force to prevent frequent power-ON/OFF and to equalize pressure in the refrigerant system. Electric Symbol Parts Name Symbol RZR18/24/32P RZQ18/24/30P Compressor (INV.) M1C M1C OFF Outdoor unit fan M1F M1F M2F Ta > 86F: STEP 4 Ta 86F: OFF Four-way valve 20S1 Y1S Y1S Keep former condition.
Special Control 3.7 SiUS281117 Pressure Equalization Prior to Startup Ta: Outdoor air temperature Pc: High-pressure sensor detection value Pe: Low-pressure sensor detection value Before activating the compressor, the activation load is lightened by equalization across the compressor. In addition, inverters turn ON electricity and capacitors are charged. Electric Symbol Parts Name Symbol RZR18/24/32P RZQ18/24/30P Compressor (INV.
SiUS281117 Protection Control 4. Protection Control 4.1 High Pressure Protection Control Pc: High-pressure sensor detection value This high pressure protection control is used to prevent the activation of protection devices due to abnormal increase of high pressure and to protect compressors against the transient increase of high pressure.
Protection Control 4.2 SiUS281117 Low Pressure Protection Control Pe: Low pressure sensor detection value This low pressure protection control is used to protect compressors against the transient decrease of low pressure. [Cooling] Low pressure not limited Pe < 36 psi Pe > 57 psi Low pressure limited 57Hz Pe < 10 psi Low pressure standby When occurring 3 times within 60 min., the error code "E4" is output.
SiUS281117 4.3 Protection Control Discharge Pipe Protection Control HTdi: Value of INV. compressor discharge pipe temperature (Tdi) compensated with outdoor air temperature Tp: Value of compressor port temperature calculated by Tc and Te, and suction superheated degree. This discharge pipe protection control is used to protect the compressor internal temperature against an error or transient increase of discharge pipe temperature. [INV.
Protection Control 4.4 SiUS281117 Inverter Protection Control Tb: Outdoor unit heat exchanger temperature Tfin: Radiation fin temperature Inverter current protection control and radiation fin temperature control are performed to prevent tripping due to an error, or transient inverter overcurrent, and radiation fin temperature increase. [Inverter overcurrent protection control] Not limited & Inverter current > X A Limited OR • Inverter current ≤ X A • INV. upper limit frequency XA Tb ≥ 77˚F 13.
SiUS281117 Other Control 5. Other Control 5.1 Heating Operation Prohibition Heating operation is prohibited above 82°FDB outdoor air temperature.
Outline of Control (Indoor Unit) SiUS281117 6. Outline of Control (Indoor Unit) 6.1 Drain Pump Control The drain pump is controlled by the ON/OFF buttons (4 button (1) - (4) given in the figure below). 6.1.1 When the Float Switch is Tripped while the Cooling Thermostat is ON: Remote controller "A3" blinking abnormal stop ON Thermostat (running) OFF OFF Float switch ON ON Drain pump OFF 5 min. 5 min. 5 sec. ∗1) Normal operation Note: ∗2) Error residual 1.
SiUS281117 Outline of Control (Indoor Unit) 6.1.3 When the Float Switch is Tripped during Heating Operation: Remote controller "A3" blinking abnormal stop Thermostat ON (running) OFF ON Humidifier OFF Reset OFF Float switch ON ON Drain pump OFF 5 min. Note: 5 sec. 5 min. During heating operation, if the float switch is not reset even after the 5 minutes operation, 5 seconds stop, 5 minutes operation cycle ends, operation continues until the switch is reset. 6.1.
Outline of Control (Indoor Unit) 6.2 SiUS281117 Louver Control for Preventing Ceiling Dirt We have added a control feature that allows you to select the range of in which air direction can be adjusted in order to prevent the ceiling surrounding the air discharge outlet of ceiling mounted cassette type units from being soiled.
SiUS281117 6.3 Outline of Control (Indoor Unit) Room Temperature Thermistor in Remote Controller Temperature is controlled by both the room temperature thermistor in remote controller and suction air thermistor () in the indoor unit. (This is however limited to when the field setting for the room temperature thermistor in remote controller is set to “Use.
Outline of Control (Indoor Unit) Heating SiUS281117 When heating, the hot air rises to the top of the room, resulting in the temperature being lower near the floor where the occupants are. When controlling by suction air thermistor () only, the unit may therefore be turned OFF by the thermostat before the lower part of the room reaches the set temperature.
SiUS281117 6.4 Outline of Control (Indoor Unit) Thermostat Control with Operation Mode Set to "AUTO" When the operation mode is set to "AUTO" on the remote controller, the system will conduct the temperature control shown below. Furthermore, setting changes of the differential value (D°F) can be made according to information in the "Field settings from remote controller (P.70 and later)" section. Mode No. Second code No. First code No.
Outline of Control (Indoor Unit) 6.5 SiUS281117 Freeze-up Prevention Freeze-up Prevention by Off Cycle (Indoor Unit) When the temperature detected by liquid pipe temperature thermistor (R2T) of the indoor unit heat exchanger drops too low, the unit enters freeze-up prevention operation in accordance with the following conditions, and is also set in accordance with the conditions given below.
SiUS281117 6.6 Outline of Control (Indoor Unit) View of Operations of Swing Flaps Swing flaps work as following.
Outline of Control (Indoor Unit) 6.7 SiUS281117 Hot Start Control (In Heating Operation Only) At startup with thermostat ON or after the completion of defrosting in heating operation, the indoor unit fan is controlled to prevent cold air from blasting out and ensure startup capacity. [Detail of operation] When either the start condition 1 or the start condition 2 is established, the operations shown below will be conducted.
SiUS281117 Outline of Control (Indoor Unit) FTQ At startup with thermostat ON or after the completion of defrosting in heating operation, the indoor unit fan is controlled to prevent cold air from blasting out and ensure startup capacity. [Detail of operation] When either the start condition 1 or the start condition 2 is established, the operations shown below will be conducted.
Outline of Control (Indoor Unit) 6.8 SiUS281117 Heater Control (FTQ) 6.8.1 Auxiliary Heater Control If heating is insufficient in heat pump system alone, an electrical heater is to be used as the auxiliary heater. The following shows the ON/OFF conditions for the electric heater.
SiUS281117 Outline of Control (Indoor Unit) Condition A & Note: • Thermostat step 2 = "ON" • Heating mode • Not during test operation • Not during control operation • High pressure condition = "ON" ∗3 • Liquid pipe temperature condition = "ON" ∗4 • Electrical heater setting = "3" 1: Fixing of the fan H tap 2: The operation should continue for a certain period of time after the heater turns OFF.
Outline of Control (Indoor Unit) SiUS281117 6.8.2 Heat Pump Lockout Mode During heating operation, users can select an electrical heater for heating. For this, signals are sent using ABC terminal of outdoor unit PCB. When the hot-water heating signal is received from the outdoor unit PCB, heating operation is performed only with the heater as manual backup operation. The ON/OFF conditions for this electrical heater are shown below.
SiUS281117 Outline of Control (Indoor Unit) Condition A • Heating mode • Thermostat step 1 = "ON" • Not during fan residual operation & & • [Electrical heater setting] = "01" • [Electrical heater setting] = "03" • Hot-water heater = "1" (ON) OR Condition B OR Note: 6.
Outline of Control (Indoor Unit) SiUS281117 6.10 Interlocked with External Equipment (FTQ) 6.10.1 Humidifier When a humidifier is connected onsite, the fan operates with the airflow rate set of the remote controller or with the H tap. Note: Function and Control & • Remote control operation = ON (including thermostat OFF) • External input = ON & • Remote control operation = ON (including thermostat OFF) • When the external input changes from ON to OFF.
SiUS281117 Outline of Control (Indoor Unit) 6.10.2 Economizer When indoor and outdoor air temperatures are reversed, the compressor is stopped to let in the outdoor air to save energy. This operation is called economizer operation, and the equipment to detect indoor and outdoor air temperatures and open and close the damper to perform this operation is called an economizer.
SiUS281117 Part 5 Field Setting 1. Test Operation ......................................................................................66 1.1 Procedure and Outline ........................................................................... 66 1.2 Operation when Power is Turned ON .................................................... 69 2. Field Setting from Remote Controller....................................................70 2.1 Wired Remote Controller ..................................................
SiUS281117 Test Operation 1. Test Operation 1.1 Procedure and Outline Follow the following procedure to conduct the initial test operation after installation. 1.1.1 Check Work Prior to Turn Power Supply ON Check the below items.
Test Operation SiUS281117 1.1.3 Check Operation During check operation, mount front panel to avoid the misjudging. Check operation is mandatory for normal unit operation. (When the check operation is not executed, alarm code "U3" will be displayed.) Press and hold the TEST button (BS4) on outdoor unit PCB for 5 seconds. Check on operation ⎧ The test operation is started automatically. ⎫ ⎪ The following judgements are conducted within 15 minutes (about 30 ⎪ at the maximum).
SiUS281117 Test Operation 1.1.4 Confirmation on Normal Operation 68 Conduct normal unit operation after the check operation has been completed. (When outdoor air temperature is 82°FDB or higher, the unit can not be operated with heating mode. See the installation manual attached.) Confirm that the indoor/outdoor units can be operated normally.
Test Operation 1.2 SiUS281117 Operation when Power is Turned ON 1.2.1 When Turning ON Power First Time The unit cannot be run for up to 12 minutes to automatically set the main power and address (indoor-outdoor address, etc.). Status Outdoor unit Test lamp H2P .... Blinks Can also be set during operation described above. Indoor unit If ON button is pressed during operation described above, the “UH” error indicator blinks. (Returns to normal when automatic setting is complete.) 1.2.
SiUS281117 Field Setting from Remote Controller 2. Field Setting from Remote Controller Individual function of indoor unit can be changed from the remote controller. At the time of installation or after service inspection / repair, make the local setting in accordance with the following description. Wrong setting may cause error. (When optional accessory is mounted on the indoor unit, setting for the indoor unit may be required to change. Refer to information in the option handbook.) 2.
Field Setting from Remote Controller SiUS281117 2.1.2 BRC1E71 1 Press and hold Cancel button for 4 seconds or more. Service settings menu is displayed. 1 Fan 2 Select Field Settings in the Service Settings menu, and press Menu/OK button. Field settings screen is displayed. Press and hold Cancel button for 4 seconds or more during backlight lit. 3 Highlight the mode, and select desired “Mode No.” by using (Up/Down) button.
SiUS281117 Field Setting from Remote Controller 6 Press Menu/OK button. Setting confirmation screen is displayed. 7 Select Yes and press Menu/OK button. Setting details are determined and field settings screen returns. 8 In the case of multiple setting changes, repeat “3” to “7”. 9 After all setting changes are completed, press Cancel button twice. 10 Backlight goes out, and 6 7 Field Settings Save the settings? Yes No Setting Press Menu/OK button.
Field Setting from Remote Controller 2.2 SiUS281117 Wireless Remote Controller MODE NO. FIELD SETTING MODE 3 4 5 SECOND CODE NO. FIRST CODE NO. 2 1, 6 1. When in the normal mode, press the “ ” button for 4 seconds or more, and operation then enters the “field setting mode.” 2. Select the desired “mode No.” with the “ ” button. 3. Pressing the “ ” button, select the first code No. 4. Pressing the “ ” button, select the second code No. 5. Press the timer “ ” button and check the settings. 6.
SiUS281117 2.3 Field Setting from Remote Controller Setting Contents and Code No. for Indoor Units : Factory setting Mode No. First Code No. 0 0 5 1 1 5 2 10 (20) 11 (21) 12 (22) 13 (23) 14 (24) Second Code No.
Field Setting from Remote Controller SiUS281117 2.3.1 Applicable Range of Field Setting Mode No. First Code No.
SiUS281117 Field Setting from Remote Controller 2.3.2 Detailed Explanation of Setting Modes Filter Sign Setting If switching the filter sign ON time, set as given in the table below. Filter Specs. Setting Contamination Light Contamination Heavy Mode No. First Code No. Second Code No. 10(20) 0 01 02 Lighting interval of the filter sign (hours) Long Standard Long Life Ultra Life Filter 200 hrs. 2,500 hrs. 10,000 hrs. 100 hrs. 1,250 hrs. 5,000 hrs.
Field Setting from Remote Controller SiUS281117 Auto Restart after Power Failure Reset For the air conditioners with no setting for the function, the units will be left in the stop condition when the power supply is reset automatically after power failure reset or the main power supply is turned ON again after once turned OFF.
SiUS281117 Field Setting from Remote Controller 2.3.3 Setting of Operation Control Mode from Remote Controller (Local Setting) The operation control mode is compatible with a variety of controls and operations by limiting the functions of the operation remote controller. Furthermore, operations such as remote controller ON/OFF can be limited in accordance with the combination conditions. (Refer to information in the next page.
Field Setting from Remote Controller SiUS281117 How to Select Operation Mode Whether operation by remote controller will be possible or not for turning ON/OFF, controlling temperature or setting operation mode is selected and decided by the operation mode given on the right edge of the table below.
SiUS281117 Field Setting from Outdoor Unit 3. Field Setting from Outdoor Unit 3.1 Location of DIP Switch and BS Button Outdoor Unit PCB DEMAND SLAVE MASTER IND L.N.O.
Field Setting from Outdoor Unit 3.2 SiUS281117 Setting by DIP Switches The following field settings are made by DIP switches on PCB. DIP switch No. Setting DS1-1 OFF (Factory setting) ON Setting item Description Cool/Heat changeover setting Used to set cool/heat changeover setting by remote controller equipped with outdoor unit. (Note 1) ON DS1-2 Not used OFF (Factory setting) Do not change the factory settings.
SiUS281117 Field Setting from Outdoor Unit Mode changing procedure Using the MODE button, the modes can be changed as follows. Press and hold the BS1 (MODE) for 5 seconds. Setting mode 2 Press the BS1 (MODE) once. Monitor mode Setting mode 1 Press the BS1 (MODE) once. MODE (Normal) MODE MODE OFF ON H1P Blinking H1P H1P Mode changing procedure (Set): Select mode with BS2 (SET) in each selection step. Press BS1 (MODE) for more than 5 sec.
Field Setting from Outdoor Unit 3.4 SiUS281117 Setting Mode 1 This mode is used to set and check the current operating conditions (Normal / Abnormal / In check operation) Normally, “Setting mode 1” is set. In case of other status, press MODE button (BS1) once and set to “Setting mode 1”. Display for error / preparing / test-run Setting (displaying) item ∗ The current state is displayed.
SiUS281117 3.5 Field Setting from Outdoor Unit Setting Mode 2 Press and hold the MODE button (BS1) for 5 seconds and set to “Setting mode 2”. Press the SET button (BS2) and set the LED display to a setting item shown in the table on the right. ↓ Press the RETURN button (BS3) and decide the item. (The present setting condition is blinked.) No. Press the RETURN button (BS3) and set to the initial status of “Setting mode 2”.
Field Setting from Outdoor Unit SiUS281117 k: ON h: OFF l: Blink Setting item display No.
SiUS281117 3.6 Field Setting from Outdoor Unit Monitor Mode k: ON h: OFF l: Blink To enter the monitor mode, press the MODE button (BS1) when in “Setting mode 1”. No.
Field Setting from Outdoor Unit 3.7 SiUS281117 Detailed Explanation of Setting Modes 3.7.1 Cool / Heat Mode Switching The Cool / Heat Mode switching is carried out by remote controller fitted to indoor unit. This setting is not required for normal operation. (Factory setting) 3.7.
SiUS281117 Field Setting from Outdoor Unit 3. If necessary, while in "Setting mode 2", select the setting condition (i.e., "06:00", "07:00", or "08:00") for set item No. 27 (Setting of end time of low night noise operation). (Use the end time as a guide since it is estimated according to outdoor air temperatures.) 4. If necessary, while in "Setting mode 2", set the setting condition for set item No. 29 (Setting of capacity precedence) to "ON".
Field Setting from Outdoor Unit SiUS281117 3.7.3 Setting of Demand Operation By connecting the external contact input to the demand input of the outdoor unit external control adaptor (optional), the power consumption of unit operation can be saved suppressing the compressor operating condition. Setting content Set item Condition Mode 1 Demand 1 Mode 2 Mode 3 Demand 2 Demand 3 Setting method External control adaptor Content Outdoor unit PCB The compressor operates at Set item No.
SiUS281117 Field Setting from Outdoor Unit Image of operation in the case of A Power consumption Rated power consumption 80 % of rated power consumption 70 % of rated power consumption 60 % of rated power consumption Demand level 1 instructing Demand level 2 instructing Demand level 3 instructing Power consumption set by "Demand 1 level setting".
Field Setting from Outdoor Unit SiUS281117 Detailed Setting Procedure of Low Night Noise Operation and Demand Control 1. Setting mode 1 (H1P OFF) (1) In setting mode 2, press the BS1 (MODE button) once. Setting mode 1 is entered and H1P OFF. During the setting mode 1 is displayed, “In low night noise operation” and “In demand control” are displayed. 2. Setting mode 2 (H1P ON) (1) In setting 1, press and hold the BS1 (MODE button) for more than 5 seconds. Setting mode 2 is entered and H1P lights.
SiUS281117 Field Setting from Outdoor Unit 3.7.4 Setting of Refrigerant Recovery Mode When carrying out the refrigerant collection on site, fully open the respective electronic expansion valve of indoor and outdoor units. Both the outdoor unit and the indoor unit are forbidden to operation. [Operation procedure] (1) In setting mode 2 with units in stop mode, set “Refrigerant Recovery / Vacuuming mode” to ON. The respective electronic expansion valve of indoor and outdoor units are fully opened.
Field Setting from Outdoor Unit SiUS281117 3.7.6 Check Operation To prevent any trouble in the period of installation at site, the system is provided with a test operation mode enabling check for incorrect wiring, stop valve left in closed, and judgement of piping length. CHECK OPERATION FUNCTION LED display (H1P~H7P) (k: ON Unit stopping Step 1 Pressure equalizing Press the TEST button (BS4) for 5 seconds.
SiUS281117 Part 6 Service Diagnosis 1. Symptom-based Troubleshooting .........................................................96 2. Troubleshooting by Remote Controller .................................................99 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11 2.12 2.13 2.14 2.15 2.16 2.17 2.18 2.19 2.20 2.21 2.22 2.23 2.24 2.25 2.26 2.27 2.28 2.29 2.30 2.31 2.32 2.33 2.34 2.35 2.36 2.37 2.38 2.39 2.40 94 Mode ChangeOver................................................................................
SiUS281117 2.41 2.42 2.43 2.44 2.45 2.46 2.47 2.48 Radiation Fin Thermistor Abnormality.................................................. 160 Refrigerant Shortage............................................................................ 161 Power Supply Voltage Abnormality...................................................... 162 Check Operation not Executed ............................................................ 164 Transmission Error (between Indoor Units and Outdoor Units) ...........
SiUS281117 Symptom-based Troubleshooting 1. Symptom-based Troubleshooting 1 Symptom The system does not start operation at all. Supposed Cause Blowout of fuse(s) Cutout of breaker(s) Countermeasure Turn OFF the power supply and then replace the fuse(s). • If the knob of any breaker is in its OFF position, turn ON the power supply. • If the knob of any circuit breaker is in its tripped position, do not turn ON the power supply.
Symptom-based Troubleshooting 6 7 8 Symptom The remote controller displays "UNDER CENTRALIZED CONTROL". The remote controller displays "UNDER CENTRALIZED CONTROL", and the COOLHEAT selection remote controller is provided. The system This symptom occurs conducts fan immediately after turning ON operation but not the power supply. cooling or heating operation. The airflow rate Even pressing the AIRFLOW is not RATE SET button makes no reproduced changes in the airflow rate. according to the setting.
SiUS281117 Symptom-based Troubleshooting Symptom 11 The system produces sounds. Immediately after turning ON the power supply, indoor unit produces "ringing" sounds. "Hissing" sounds are continuously produced while in cooling or defrosting operation. "Hissing" sounds are produced immediately after the startup or stop of the system, or the startup or stop of defrosting operation.
Troubleshooting by Remote Controller SiUS281117 2. Troubleshooting by Remote Controller 2.1 Mode ChangeOver The following modes can be selected by using the [Inspection/Test Operation] button on the remote control. Depress the Inspection/Test Operation button for more than 4 seconds. Indoor unit settings can be made • Filter sign time • Airflow direction • Others Field setting mode Service mode Depress the Inspection/Test Operation button for more than 4 seconds. Service data can be obtained.
SiUS281117 2.2 Troubleshooting by Remote Controller Procedure of Self-diagnosis by Remote Controller 2.2.1 Wired Remote Controller — BRC1D71 If operation stops due to error, the remote controller’s operation LED blinks, and error code is displayed. (Even if stop operation is carried out, error contents are displayed when the inspection mode is entered.) The error code enables you to tell what kind of error caused operation to stop. Refer to P.103 for error code and error contents.
Troubleshooting by Remote Controller SiUS281117 2.2.2 Wired Remote Controller — BRC1E71 The following will be displayed on the screen when an error (or a warning) occurs during operation. Check the error code and take the corrective action specified for the particular model. Screen Operation lamp (1) Checking an error or warning Operation Status Abnormal stop Warning Display The operation lamp (green) starts to blink. The The system stops message "Error: Push operating.
SiUS281117 Troubleshooting by Remote Controller 2.2.3 Wireless Remote Controller If unit stops due to an error, the operation indicating LED on the signal receiving part of indoor unit blinks. The error code can be determined by following the procedure described below. (The error code is displayed when an operation error has occurred. In normal condition, the error code of the last problem is displayed.) 1 2 3 4 Press the INSPECTION/TEST button to select “inspection”.
Troubleshooting by Remote Controller 2.
SiUS281117 2.4 Troubleshooting by Remote Controller Error Codes - Sub Codes If an error code like the one shown below is displayed when the navigation remote controller (BRC1E71) is in use, make a detailed diagnosis or a diagnosis of the relevant unit referring to the attached list of detailed error codes. 2.4.
Troubleshooting by Remote Controller SiUS281117 2.4.2 Outdoor Unit Error code E7 - 01 L1 - 01 L1 L1 L1 L1 L1 L8 - 02 03 04 05 06 01 Troubleshooting Description of error Fan motor lock Description of diagnosis The fan motor has caused abnormal rotation. Check for the connection of the connector between the fan motor and the outdoor unit PCB. If the connection is normal, replace the fan motor. If this still cannot solve the error, replace the outdoor unit PCB.
SiUS281117 Error code Troubleshooting by Remote Controller Troubleshooting U0 - 02 Description of error Gas shortage - Outdoor unit (Factor 0) U0 - 03 Gas shortage - Outdoor unit (Factor 1) U0 - 04 Gas shortage - Outdoor unit (Factor 2) U2 - 01 Power supply voltage error U2 - 02 U2 - 03 Open phase of power supply Main circuit capacitor charge error U2 - 04 SP/MP - PAM overvoltage error UA - 01 Incorrect number of indoor units connected UA - 02 Multiple master units detected UA - 03 Exce
Troubleshooting by Remote Controller 2.5 SiUS281117 Error Code Indication by Outdoor Unit PCB To enter the monitor mode, press the MODE (BS1) button when in “Setting mode 1”. Contents of Error Press the SET (BS2) button and set the LED display to a setting item. In-phase error of DIII-Net Detection of DIII-Net E1 Discharge pressure Abnormality HPS activated E3 Suction pressure Abnormality Pe abnormality E4 Compressor lock Detection of INV.
SiUS281117 Troubleshooting by Remote Controller k: ON h: OFF l: Blink Confirmation of Error 1 Confirmation of Error 2 Confirmation of Error 3 Confirmation of Error 4 Error Code H1P H2P H3P H4P H5P H6P H7P H1P H2P H3P H4P H5P H6P H7P H1P H2P H3P H4P H5P H6P H7P H1P H2P H3P H4P H5P H6P H7P l l l l l l l h h h h h h h k k k k k k k h h h h h l l h h l l l h h h l h h l h h l l h l l l l l l l l l l l k k k k k k k h h h h h h h h h h h h h h h h h h h h h h h h h h h h h h h h h h h l l l l
Troubleshooting by Remote Controller 2.6 SiUS281117 Error of External Protection Device Remote Controller Display A0 Applicable Models All indoor models Method of Error Detection Detect open or short circuit between external input terminals in indoor unit. Error Decision Conditions When an open circuit occurs between external input terminals with the remote controller set to "external ON/OFF terminal".
SiUS281117 2.7 Troubleshooting by Remote Controller Indoor Unit PCB Abnormality Remote Controller Display A1 Applicable Models All indoor models Method of Error Detection Check data from E²PROM. Error Decision Conditions The error is generated when the data from the E²PROM is not received correctly. E²PROM (Electrically Erasable Programmable Read Only Memory): A memory chip that holds its content without power.
Troubleshooting by Remote Controller 2.8 SiUS281117 Drain Water Level System Abnormality Remote Controller Display A3 Applicable Models FCQ, FHQ (Option), FAQ (Option), FTQ Method of Error Detection By float switch OFF detection Error Decision Conditions The error is generated when the water level reaches its upper limit and when the float switch turns OFF.
SiUS281117 Troubleshooting by Remote Controller Troubleshooting Caution Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged. Is the drain pump mechanism connected? NO Is the short circuit connector connected to the indoor unit PCB? NO Short circuit connector connection YES YES Check the continuity of short circuit connector. Is there continuity? NO Replace the short circuit connector. YES Replace the indoor unit PCB.
Troubleshooting by Remote Controller 2.9 SiUS281117 Indoor Unit Fan Motor Abnormality Remote Controller Display A6 Applicable Models All indoor models Method of Error Detection Detection of abnormal fan revolution by signal from the fan motor Error Decision Conditions The error is generated when the fan revolution do not increase while the output voltage to the fan is at its maximum.
SiUS281117 Troubleshooting by Remote Controller Troubleshooting Caution Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged. Turn OFF the power supply. Wait for 10 min. Is there any foreign matter around the fan? YES Remove the foreign matter. NO Is the fan motor harness connected to indoor unit PCB (*1) YES With connector for fan motor (*) disconnected, can the fan be easily turned by hands? NO Connect correctly. NO Replace the fan motor.
Troubleshooting by Remote Controller SiUS281117 2.10 Swing Flap Motor Abnormality / Lock Remote Controller Display A7 Applicable Models FCQ, FHQ, FAQ Method of Error Detection The error is detected by the limit switch when the motor turns. Error Decision Conditions When ON/OFF of the micro-switch for position detection cannot be reversed even though the swing flap motor is energized for a specified amount of time (about 30 seconds). Error code is displayed but the system operates continuously.
SiUS281117 Troubleshooting by Remote Controller Troubleshooting Caution Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged. Is the connector (∗1) correctly connected? NO Connect correctly. YES Is the limit switch's transfer connector correctly connected? NO Connect correctly. YES Turn the power supply OFF once and back ON, and check whether the swing flap motor swings when the power supply is turned back ON.
Troubleshooting by Remote Controller SiUS281117 2.
SiUS281117 Troubleshooting by Remote Controller 2.12 Electronic Expansion Valve Coil Abnormality Remote Controller Display A9 Applicable Models All indoor models Method of Error Detection Check the coil condition of electronic expansion valve by using micro-computer. Error Decision Conditions Pin input for electronic expansion valve coil is abnormal when initializing micro-computer.
Troubleshooting by Remote Controller SiUS281117 1: Coil check method for the electronic expansion valve coil Discount the electronic expansion valve from the PCB and check the continuity between the connector pins. (Normal) Pin No. 1. White 2. Yellow 3. Orange 4. Blue 5. Red 1. White 2. Yellow × 3. Orange Approx. 300 × 4. Blue × Approx. 300 × 5. Red Approx. 150 × Approx. 150 × 6. Brown × Approx. 150 × Approx. 150 × 6.
SiUS281117 Troubleshooting by Remote Controller 2.13 Drain System Abnormality Remote Controller Display AF Applicable Models All indoor models Method of Error Detection Water leakage is detected based on float switch ON/OFF operation while the compressor is in non-operation. Error Decision Conditions The float switch changes from ON to OFF while the compressor is OFF. Error code is displayed but the system operates continuously.
Troubleshooting by Remote Controller SiUS281117 2.14 Capacity Setting Abnormality Remote Controller Display AJ Applicable Models All indoor models Method of Error Detection Capacity is determined according to resistance of the capacity setting adaptor and the memory inside the IC memory on the indoor unit PCB, and whether the value is normal or abnormal is determined.
SiUS281117 Troubleshooting by Remote Controller 2.15 Transmission Error between Indoor Unit PCB and Fan PCB Remote Controller Display C1 Applicable Models FBQ Method of Error Detection Check the condition of transmission between indoor unit PCB and fan PCB using computer. Error Decision Conditions When normal transmission is not conducted for certain duration. Supposed Causes 122 Connection error of the connector between indoor unit PCB and fan PCB.
Troubleshooting by Remote Controller SiUS281117 Troubleshooting Caution Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged. Is the connector between indoor unit PCB (A1P) and fan PCB (A2P) accurately connected? (∗1) NO Connect the connector accurately. YES Confirm the condition of transmission on indoor unit PCB using field setting mode. (∗2) Under above field setting mode, installation position is "01".
SiUS281117 Troubleshooting by Remote Controller 2.16 Heat Exchanger (Liquid pipe) Thermistor Abnormality C4 Remote Controller Display Applicable Models All indoor models Method of Error Detection The error is detected by temperature detected by heat exchanger thermistor.
Troubleshooting by Remote Controller SiUS281117 2.17 Heat Exchanger (Gas Pipe) Thermistor Abnormality C5 Remote Controller Display Applicable Models All indoor models Method of Error Detection The error is detected by temperature detected by gas pipe thermistor.
SiUS281117 Troubleshooting by Remote Controller 2.18 Combination Error between Indoor Unit PCB and Fan PCB C6 Remote Controller Display Applicable Models FBQ Method of Error Detection Conduct open line detection with fan PCB (A2P) using indoor unit PCB (A1P). Error Decision Conditions When the communication data of fan PCB is determined as incorrect. Supposed Causes Defective fan PCB Defective connection of capacity setting adaptor.
Troubleshooting by Remote Controller SiUS281117 2.19 Suction Air Thermistor Abnormality C9 Remote Controller Display Applicable Models FCQ, FHQ, FAQ, FBQ Method of Error Detection The error is detected by temperature detected by suction air thermistor.
SiUS281117 Troubleshooting by Remote Controller 2.20 Humidity Sensor System Abnormality CC Remote Controller Display Applicable Models FCQ Method of Error Detection The error is detected according to the humidity (output voltage) detected by humidity sensor. Error Decision Conditions The error is generated when the humidity sensor becomes disconnected or shorted when the unit is running. Error code is displayed but the system operates continuously.
Troubleshooting by Remote Controller SiUS281117 2.21 Room Temperature Thermistor in Remote Controller Abnormality CJ Remote Controller Display Applicable Models All indoor models Method of Error Detection Error detection is carried out by temperature detected by room temperature thermistor in remote controller. (1) Error Decision Conditions When the room temperature thermistor in remote controller becomes disconnected or shorted while the unit is running.
SiUS281117 Troubleshooting by Remote Controller 2.22 Outdoor Unit PCB Abnormality Remote Controller Display E1 Applicable Models RZR, RZQ Method of Error Detection Micro-computer checks whether E2PROM is normal. Error Decision Conditions When E2PROM error when turning the power supply ON Supposed Causes Defective outdoor unit PCB Defective fan motor External factor (Noise, etc.
Troubleshooting by Remote Controller SiUS281117 2.23 High Pressure Abnormality Remote Controller Display E3 Applicable Models RZR, RZQ Method of Error Detection Abnormality is detected when the contact of the high pressure switch opens. Error Decision Conditions Error is generated when the S1PH (High pressure switch) activation count reaches the number specific to the operation mode.
SiUS281117 Troubleshooting by Remote Controller Troubleshooting Caution Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged. Check for the points shown below. Is the stop valve open? Is the high pressure switch connector properly connected to the outdoor unit main PCB? Is these continuity with the high pressure switch? Are the three points above OK? NO Rectify the defective points, if any.
Troubleshooting by Remote Controller SiUS281117 2.24 Actuation of Low Pressure Sensor Remote Controller Display E4 Applicable Models RZR, RZQ Method of Error Detection Abnormality is detected by the pressure value with the low pressure sensor. Error Decision Conditions Error is generated when the low pressure is dropped during compressor operating.
SiUS281117 Troubleshooting by Remote Controller Troubleshooting Caution Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged. Is the stop valve open? NO Open the stop valve. YES Mount a pressure gauge on the low pressure service port. Reset the operation using the remote controller, and then restart the operation. Are the characteristics of the low pressure sensor normal? (∗1) NO Replace the low pressure sensor.
Troubleshooting by Remote Controller SiUS281117 2.25 Inverter Compressor Motor Lock Remote Controller Display E5 Applicable Models RZR, RZQ Method of Error Detection Detect the motor lock when the compressor is energized. Error Decision Conditions If the motor rotor does not rotate when the compressor is energized.
SiUS281117 Troubleshooting by Remote Controller Troubleshooting Caution Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged. Check the installation conditions. Is the stop valve open? NO Open the stop valve. YES Check and see whether compressor is shortcircuited or ground. YES Replace the compressor. NO Is high pressure higher than 2.6 MPa at starting? YES Remedy the cause. NO Replace the compressor.
Troubleshooting by Remote Controller SiUS281117 2.26 Outdoor Unit Fan Motor Abnormality Remote Controller Display E7 Applicable Models RZR, RZQ Method of Error Detection The error is detected according to the revolution speed detected by hall IC when the fan motor runs. Error Decision Conditions When the fan runs with revolution speed less than a specified one for 6 seconds or more when the fan motor running conditions are met When the error is generated 4 times, the system shuts down.
SiUS281117 Troubleshooting by Remote Controller 2.27 Electronic Expansion Valve Coil Abnormality Remote Controller Display E9 Applicable Models RZR, RZQ Method of Error Detection Detect errors based on check of continuity of the electronic expansion valve. Detect errors by suction pipe superheated degree, discharge pipe superheated degree and electronic expansion valve opening degree.
Troubleshooting by Remote Controller SiUS281117 Troubleshooting Caution Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged. Turn OFF the power supply once and then turn it ON again. NO Does the error code "E9" recur? YES Is the electronic expansion valve connector X21A or X22A properly connected to the outdoor unit PCB? NO Connect properly.
SiUS281117 Troubleshooting by Remote Controller A Are the characteristics of each thermistor normal? NO Replace the defective thermistor. CHECK 5 YES Are the pressure sensor characteristics normal? CHECK 6 NO Replace the pressure sensor. YES Actually, it is in wet operation. Refer to CHECK 7 to eliminate the causes of wet operation. Restart the operation. Error is displayed again. YES Replace the outdoor unit PCB (A1P). NO External factor (Noise, etc.) Note: CHECK 5 Refer to P.177, 178.
Troubleshooting by Remote Controller SiUS281117 2.28 Discharge Pipe Temperature Control Error Remote Controller Display F3 Applicable Models RZR, RZQ Method of Error Detection Abnormality is detected according to the temperature detected by the discharge pipe thermistor.
SiUS281117 Troubleshooting by Remote Controller Troubleshooting Caution Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged. Is the discharge pipe temperature high? (248°F) YES NO Is the discharge pipe thermistor correctly connected to PCB (A1P)? NO Abnormality in refrigerant system such as refrigerant shortage, defective compressor, etc. Conduct inspection Connect correctly, and operate the unit again.
Troubleshooting by Remote Controller SiUS281117 2.29 Refrigerant Overcharged Remote Controller Display F6 Applicable Models RZR, RZQ Method of Error Detection Excessive charging of refrigerant is detected by using the outdoor air temperature and heat exchanger deicer temperature during check operation. Error Decision Conditions When the amount of refrigerant, which is calculated by using the outdoor air temperature and heat exchanging deicer temperature during check operation, exceeds the criteria.
SiUS281117 Troubleshooting by Remote Controller 2.30 High Pressure Switch System Abnormality Remote Controller Display H3 Applicable Models RZR, RZQ Method of Error Detection The protection device circuit checks continuity in the high pressure switch.
Troubleshooting by Remote Controller SiUS281117 2.
SiUS281117 Troubleshooting by Remote Controller 2.32 Thermistor System Abnormality Remote Controller Display H9, J3, J5, J6 Applicable Models RZR, RZQ Method of Error Detection The error is detected from the temperature detected by each thermistor.
Troubleshooting by Remote Controller SiUS281117 2.33 High Pressure Sensor Abnormality Remote Controller Display JA Applicable Models RZR, RZQ Method of Error Detection The error is detected from the pressure detected by the high pressure sensor.
SiUS281117 Troubleshooting by Remote Controller Troubleshooting Caution Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged. The high pressure sensor is connected to X17A of outdoor unit PCB (A1P). NO Connect the high pressure sensor and turn ON again. YES The relationship between the VH and high pressure is normal (see ∗1) when voltage is measured between X17A pins (1) and (3) of outdoor unit PCB (A1P). YES Replace the outdoor unit PCB (A1P).
Troubleshooting by Remote Controller SiUS281117 2.34 Low Pressure Sensor Abnormality Remote Controller Display JC Applicable Models RZR, RZQ Method of Error Detection The error is detected from the pressure detected by the low pressure sensor. Error Decision Conditions When the low pressure sensor is short circuit or open circuit Supposed Causes Defective low pressure sensor Connection of high pressure sensor with wrong connection.
SiUS281117 Troubleshooting by Remote Controller Troubleshooting Caution Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged. The low pressure sensor is connected to X18A of outdoor unit PCB (A1P). NO Connect the low pressure sensor property and turn ON again.
Troubleshooting by Remote Controller SiUS281117 2.35 Outdoor Unit PCB Abnormality Remote Controller Display L1 Applicable Models RZQ Method of Error Detection Detect error by current value during waveform output before compressor startup. Detect error by current sensor value during synchronized operation at the time of startup. Detect error using an SP-PAM series capacitor overvoltage sensor.
SiUS281117 Troubleshooting by Remote Controller Troubleshooting Caution Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged. Is the power supply voltage between 180 and 220 VAC? NO YES Request an improvement to make the power supply voltage fall within the standard range. Turn OFF the power supply. Is the lead wire for compressor connected to PCB and compressor without becoming loose? NO Connect tightly and correctly.
Troubleshooting by Remote Controller SiUS281117 2.36 Radiation Fin Temperature Rise Remote Controller Display L4 Applicable Models RZR, RZQ Method of Error Detection Radiation fin temperature is detected by radiation fin thermistor. Error Decision Conditions When the temperature of the inverter radiation fin rises abnormally due to defective heat dissipation.
SiUS281117 Troubleshooting by Remote Controller 2.37 Momentary Overcurrent of Inverter Compressor Remote Controller Display L5 Applicable Models RZR, RZQ Method of Error Detection The error is detected from current flowing in the power transistor.
Troubleshooting by Remote Controller SiUS281117 2.38 Electronic Thermal (Time Lag) Remote Controller Display L8 Applicable Models RZR, RZQ Method of Error Detection The error is detected from the current flowing to power transistor into voltage with CT1 (DC current sensor). Error Decision Conditions When compressor overload (except for when startup) is detected.
SiUS281117 Troubleshooting by Remote Controller Troubleshooting Caution Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged. Output current check The secondary current of the inverter is higher than A (∗1) for each phase. YES Compressor overload. Inspection of the compressor and refrigerant system is required. NO Compressor inspection. The compressor's coil is disconnected. YES Replace the compressor.
Troubleshooting by Remote Controller SiUS281117 2.39 Inverter Startup Error Remote Controller Display L9 Applicable Models RZR, RZQ Method of Error Detection The error is detected from the current flowing to power transistor into voltage with CT1 (DC current sensor). Inverter PCB detects the disorder of position signal. Error Decision Conditions When compressor overload (when startup) is detected Supposed Causes Service Diagnosis The stop valve is not opened.
SiUS281117 Troubleshooting by Remote Controller Troubleshooting Caution Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged. Check the installation conditions. Is the stop valve open? NO Open the stop valve. YES Is the difference between high and low pressure before startup not more than 0.2 MPa? NO Insufficient pressure equalization. Check refrigerant system.
Troubleshooting by Remote Controller SiUS281117 2.40 Transmission Error (between Control and Inverter PCB) Remote Controller Display LC Applicable Models RZR, RZQ Method of Error Detection Check the communication state between inverter PCB and control PCB by micro-computer.
SiUS281117 Troubleshooting by Remote Controller 2.41 Radiation Fin Thermistor Abnormality P4 Remote Controller Display Applicable Models RZR, RZQ Method of Error Detection Detection by open or short circuit of the radiation fin thermistor during the compressor stops operating.
Troubleshooting by Remote Controller SiUS281117 2.42 Refrigerant Shortage U0 Remote Controller Display Applicable Models RZR, RZQ Method of Error Detection Refrigerant shortage is detected according to the electronic expansion valve opening degree and measured temperatures and pressures. Error Decision Conditions (In cooling operation) When the electronic expansion valve opens fully and low pressure is below 14.5 psi continuously for 30 minutes.
SiUS281117 Troubleshooting by Remote Controller 2.43 Power Supply Voltage Abnormality Remote Controller Display U2 Applicable Models RZR, RZQ Method of Error Detection The error is detected according to the voltage of main circuit capacitor built in the inverter and power supply voltage.
Troubleshooting by Remote Controller SiUS281117 Troubleshooting Caution Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged. Is the power supply voltage 208~230V ±10%? NO Correct power supply. YES CHECK 4 Check the inverter power transistor. YES Is the power transistor defective? NO CHECK 3 Is the resistance above standard value? NO Replace the inverter PCB. ∗Observe the conditions of the PCB.
SiUS281117 Troubleshooting by Remote Controller 2.44 Check Operation not Executed Remote Controller Display U3 Applicable Models RZQ Method of Error Detection Check operation is executed or not. Error Decision Conditions The error is decided when the unit starts operation without check operation. Supposed Causes Check operation is not executed. Troubleshooting Caution Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged.
Troubleshooting by Remote Controller SiUS281117 2.45 Transmission Error (between Indoor Units and Outdoor Units) Remote Controller Display U4 Applicable Models All indoor models RZR, RZQ Method of Error Detection Micro-computer checks if transmission between indoor and outdoor units is normal.
SiUS281117 Troubleshooting by Remote Controller Troubleshooting Caution Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged. Is the power supply voltage 208230V? NO YES Is there a wrong wiring type, loose terminal or contact failure in the transmission wiring between the indoor and outdoor units? NO Request an improvement to make the power supply voltage fall within the standard range. Wire correctly and securely fasten the terminal screws.
Troubleshooting by Remote Controller SiUS281117 A Check the resistance value of the outdoor unit fan motor. Is the resistance value of the outdoor unit fan motor normal? NO Replace the outdoor unit fan motor. YES Does the fuse (F6U) have continuity? NO Replace the fuse. YES Check the fan speed pulse. Is the output voltage normal? NO Replace the outdoor unit inverter PCB. YES After turning OFF the power supply, correctly insert the connector of the fan motor and then restore the power.
SiUS281117 Troubleshooting by Remote Controller 2.46 Transmission Error (between Remote Controller and Indoor Unit) Remote Controller Display U5 Applicable Models All indoor models Method of Error Detection Micro-computer checks if transmission between indoor unit and remote controller is normal. Error Decision Conditions The error is generated when the micro-processor detects that the transmission between the indoor unit and the remote controller is not normal over a certain amount of time.
Troubleshooting by Remote Controller SiUS281117 2.47 Transmission Error (between Main and Sub Remote Controllers) Remote Controller Display U8 Applicable Models All indoor models Method of Error Detection In case of controlling with 2-remote controller, check the system using micro-computer if signal transmission between indoor unit and remote controller (main and sub) is normal.
SiUS281117 Troubleshooting by Remote Controller 2.48 Transmission Error (between Centralized Remote Controller and Indoor Unit) Remote Controller Display UE Applicable Models All indoor models Centralized controller Method of Error Detection Micro-computer checks if transmission between indoor unit and centralized remote controller is normal.
Troubleshooting by Remote Controller SiUS281117 Troubleshooting Caution Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged. Has an indoor unit once connected been removed or its address changed? YES Reset power supply simultaneously for all optional controllers for centralized control. NO Is the power supply turned ON for indoor units displaying error? NO Turn indoor unit's power supply.
SiUS281117 Troubleshooting by Remote Controller 2.49 System is not Set yet UF Remote Controller Display Applicable Models All indoor models RZR, RZQ Method of Error Detection On check operation, the capacity of indoor units in terms of transmission is not corresponding to that of indoor units that have made changes in temperature.
Troubleshooting by Remote Controller SiUS281117 2.50 Check CHECK 1 Check for causes of rise in high pressure Referring to the Fault Tree Analysis (FTA) shown below, probe the error points. Local pressure rise [In cooling] If the outdoor unit electronic expansion valve is throttled: (See ∗1.) Rise in high pressure Defective high pressure control High pipe resistance Stop valve closed ←Check to be sure the stop valve is open. Bent or crashed pipe ←Conduct visual checks for pipe conditions.
SiUS281117 Troubleshooting by Remote Controller CHECK 2 Check for causes of drop in low pressure Referring to the Fault Tree Analysis (FTA) shown below, probe the error points. [In cooling] Defective low pressure control [In both cooling and heating] (See ∗1.) [In cooling] If the indoor unit electronic expansion valve is throttled too much: (See ∗2.
Troubleshooting by Remote Controller SiUS281117 CHECK 3 Check for Fan Motor Connector Check on connector of fan motor (Power supply cable) Turn OFF the power supply. Measure the resistance between phases of U, V, W at the motor side connectors (three-core wire) to check that the values are balanced and there is no short circuiting, while connector or relay connector is disconnected. Measuring Points Black - Red Black - White Red Judgement 53.5 ± 10% 31.
SiUS281117 Troubleshooting by Remote Controller CHECK 4 Check for Power Transistor Judgement is made through cable check with an analog tester. (1) Do not touch the energized part (high voltage part) for at least 10 minutes after the power is turned OFF. (2) Be sure to touch the ground terminal with a hand to release static electricity from the body (to prevent PCB from being damaged).
Troubleshooting by Remote Controller SiUS281117 CHECK 5 Check the Thermistors Thermistors If the cause of the problem is related to the thermistors, then the thermistors should be checked prior to changing the PCB. For more information about these thermistors, see: “Wiring Diagrams’’ on P.
SiUS281117 Troubleshooting by Remote Controller Thermistor Resistance / Temperature Characteristics Table 1 Table 2 Table 3 T°F k T°F k T°F k -22 354.1 -22 361.7719 -22 3257.371 -13 259.7 -13 265.4704 -13 2429.222 -4 192.6 -4 196.9198 -4 1827.883 5 144.2 5 147.5687 5 1387.099 14 109.1 1061.098 14 111.6578 14 23 83.25 23 85.2610 23 817.9329 32 64.10 32 65.6705 32 635.0831 41 49.70 41 50.9947 41 496.5712 50 38.85 50 39.9149 50 391.
Troubleshooting by Remote Controller SiUS281117 CHECK 6 Check Pressure Sensor Measure the voltage (DC) between pins 1 and 3 of the connector. Outdoor unit PCB (A1P) +5V Red Black GND White Micro-computer A/D input Pressure sensor Connector Red Measure DC voltage here. Detected Pressure PH (Kg/cm²) MPa 51.0 5.0 45.9 4.5 40.8 4.0 35.7 3.5 30.6 3.0 PH 25.5 2.5 20.4 2.0 15.3 1.5 10.2 1.0 5.1 0.5 0 0 -5.1 -0.5 -0.5 PH = 1.38VH – 0.69 PH : Detected pressure (MPa) VH : Output voltage (V) 0 0.5 1 1.
SiUS281117 CHECK 7 Troubleshooting by Remote Controller Check for causes of wet operation. Referring to the Fault Tree Analysis (FTA) shown below, identify defective points. Defective crankcase heater Refrigerant accumulation Frequent ON/OFF of compressor Overcharge of refrigerant [Cooling] Indoor unit electronic expansion valve opens too much.
Troubleshooting by Remote Controller CHECK 8 SiUS281117 Clogged Points Temperature differences must occur before or after the clogged points! 1 3 3 4 5 2 ACC Indoor Unit Service Diagnosis Check points 1 Around expansion mechanism Check factor Temperature difference 2 Accumulator Frosting 3 Distributor Temperature difference 4 Field piping 5 Stop valve Temperature difference Temperature difference COMP Outdoor Unit Causes Dust Choked moisture Reduced effective pipe diameter du
SiUS281117 Part 7 Appendix 1. Piping Diagrams..................................................................................183 1.1 Indoor Unit + Outdoor Unit ................................................................... 183 1.2 Indoor Unit ........................................................................................... 185 2. Wiring Diagrams .................................................................................187 2.1 Outdoor Unit............................................
Appendix Indoor unit Fan Filter Field piping φ 5/8 Stop valve (with service port 5/16" flare) Filter Field piping φ 3/8 Solenoid valve SV Compressor accumulator Accumulator Capillary tube Solenoid valve Fusible plug Pressure regulating valve Compressor Low pressure sensor S1NPL Filter S1PH High pressure switch S1NPH High pressure sensor Check valve Muffler Outdoor unit Four way valve Filter Fan C: 3D062238C Service port (5/16" flare) M Outdoor unit heat exchanger 1.
SiUS281117 Piping Diagrams RZQ36PVJU9 / RZR36PVJU RZQ42PVJU9 / RZR42PVJU Electronic expansion valve Double pipe heat exchanger Fusible plug Electronic expansion valve Filter Heat exchanger Pressure regulating valve Filter Service port Four way valve High pressure sensor S1NPH Service port Capillary tube Filter Capillary tube SV Compressor Oil separator Solenoid valve SV Filter S1PH Filter Capillary tube S1NPL Low pressure sensor Solenoid valve High pressure switch Accumulator Stop v
Piping Diagrams 1.
SiUS281117 Piping Diagrams FTQ18PAVJU FTQ24PAVJU M Fan Gas pipe connection port Heat exchanger Field piping Liquid pipe connection port Filter Filter Field piping Electronic expansion valve C: 4D068194 186 Appendix
Appendix 3D062307C 2.1 W PRINTED CIRCUIT BOARD A1P PRINTED CIRCUIT BOARD A2P BS BUTTON BS1~5 POWER SUPPLY INDOOR CAPACITOR C1~3 ~ 208/230V 60Hz (F1)(F2) L1R DIP SWITCH DS1 X1M L1 L2 A2P L2 NOTE)3 FUSE (T 6.3A/250V) F1U GRN/YLW A2P NOTE)4 FUSE (T 3.15A/250V) F6U L1 H1P~8P (A2P) PILOT LAMP (SERVICE MONITOR-ORANGE) H2P H4P H6P H8P HAP X1M X2M HAP OPERATION PILOT LAMP RED BLU X2M H1P H3P H5P H7P (SERVICE MONITOR-GREEN) DS1 LA NA TO IN/D UNIT TO OUT/D UNIT GRN E ON INV.
K3R RED - - 188 3D071178 L1-RED L2-BLU SOLENOID VALVE (FOUR WAY VALVE) Y1S SOLENOID VALVE (HOT GAS) PRINTED CIRCUIT BOARD (MAIN) A1P Y2S SOLENOID VALVE (U/L CIRCUIT) A2P PRINTED CIRCUIT BOARD (SERVICE) L1R GRN/YLW Y3S POWER SUPPLY X1M L1 L2 PRINTED CIRCUIT BOARD (NOISE FILTER) Z1C~7C NOISE FILTER (FERRITE CORE) A3P ~ 208/230V 60Hz X37A Z1C N=1 NOISE FILTER PRINTED CIRCUIT BOARD (C/H SELECTOR) A4P Z1F~4F A2P A3P L2 BS BUTTON CONNECTOR OF OPTION ADAPTOR BS1~5 C4 RED BLU H8P H6P H4P H2P A4P CONNECTOR (MOD
CONTROL BOX X35A X33A A1P A2P X2M A2P CN1 R1T X16A X27A KPR F1U A1P YLW YLW Y1E M X7A X25A Z1F NE t° R3T X30A X15A S1L N=1 M1S MSW X36A X35A X33A NOTE)3 NOTE)3 36~48-CLASS M1F MS Z1C X20A M 1~ M1P HAP V1R+ C105 X18A X17A + PS – t° : TERMINAL, · : CONNECTOR, : FIELD WIRING, : PROTECTIVE GROUND (SCREW), : NOISELESS GROUND 2. IN CASE USING CENTRALIZED REMOTE CONTROLLER, CONNECT IT TO THE UNIT IN ACCORDANCE WITH THE ATTACHED INSTALLATION MANUAL. 3.
190 3D048116A INDOOR UNIT H4P LIGHT EMITTING DIODE A1P PRINTED CIRCUIT BOARD (DEFROST-ORANGE) NOTE-4 ( ) C1 CAPACITOR M1F SS1 SELECTOR SWITCH (MAIN/SUB) RECEIVER/DISPLAY UNIT POWER SUPPLY F1U FUSE ( B 5A, 250V) SS2 SELECTOR SWITCH (WIRELESS REMOTE CONTROLLER) ~ 208-230V HAP LIGHT EMITTING DIODE (WIRELESS ADDRESS SET) (SERVICE MONITOR-GREEN) CONNECTOR FOR OPTIONAL PARTS A3P A2P 60Hz A1P X2A ( ) KAR MAGNETIC RELAY M1S X18A CONNECTOR (WIRING ADAPTOR FOR H1P SS1 KPR MAGNETIC RELAY ELECTRICAL APPENDICES) H2P BS
MOTOR (INDOOR UNIT FAN) MOTOR (SWING FLAP) THERMISTOR (AIR) THERMISTOR (COIL LIQUID PIPE) THERMISTOR (COIL GAS PIPE) TERMINAL BLOCK (CONTROL) TERMINAL BLOCK (POWER) ELECTRONIC EXPANSION VALVE SWITCHING POWER SUPPLY X2M HAP X1M A1P X1M X2M A1P HAP L2 WHT L1 RED X20A X27A F1U A1P X2M GRN/YLW PS R2T t˚ R3T t˚ t˚ R1T HAP X35A X30A X7A X15A X24A NOTE)8 X14A X18A X19A X36A GRN X2A A2P SS2 SS1 A3P H1P H2P BS1 H3P H4P X24A X1A X1A NOTE)8 RECEIVER/DISPLAY UNIT (WIRELESS REMOTE CONTROLLER)
V1R L2 DIODE BRIDGE (A1P, A2P) Z1F NOISE FILTER (A1P, A2P) R1T THERMISTOR (SUCTION AIR) THERMISTOR (AIR) X35A CONNECTOR (ADAPTOR) CURRENT SENSING DEVICE WIRED REMOTE CONTROLLER X33A CONNECTOR RESISTOR (FOR WIRING) (CURRENT LIMITING) R1T R3, R4 RESISTOR (ELECTRIC DISCHARGE) R2 R1 CONNECTOR OPTIONAL ACCESSORY M1P MOTOR (DRAIN PUMP) PS SWITCHING POWER X28A CONNECTOR (POWER SUPPLY FOR WIRING) SUPPLY (A1P, A2P) L1R REACTOR M1F MOTOR (FAN) KPR MAGNETIC RELAY Z1C, NOISE FILTER (FERRITE CORE) K1R MAGN
Wiring Diagrams SiUS281117 FTQ18PAVJU / FTQ24PAVJU X2M T2 T1 F2 F1 P2 P1 R1T R2T GRN F1UT t° F2UT t° YLW Q3 E3H F3UT BLK WHT BRN ORG GRY YLW 3 2 4 X7A X8A X23A 1 1 1 2 2 3 K8R K7R K6R K5R K4R K3R 1 2 BLK BLU PNK 8 12 K3M WHT K2R X5A 1 2 4 BRN WHT BLK WHT 2 4 OUTPUT t° INDOOR UNIT K2R ~ A1P PRINTED CIRCUIT BOARD (MAIN) K8R A2P PRINTED CIRCUIT BOARD (SUB) M1F F1U FUSE (T, 3.
SiUS281117 194 Wiring Diagrams Appendix
Daikin products are manufactured for export to numerous countries throughout the world. Prior to purchase, please confirm with your local authorized importer, distributor and/or retailer whether this product conforms to the applicable standards, and is suitable for use, in the region where the product will be used. This statement does not purport to exclude, restrict or modify the application of any local legislation. Ask a qualified installer or contractor to install this product.
