SiBE34 - 703 RXYSQ4·5·6P7Y1B R-410A Heat Pump 50Hz
SiBE34-703 R-410A Heat Pump 50Hz 1. Introduction ........................................................................................... vi 1.1 Safety Cautions ....................................................................................... vi 1.2 PREFACE ................................................................................................x Part 1 General Information ........................................................... 1 1. Model Names of Indoor/Outdoor Units..................
SiBE34-703 4. Protection Control .................................................................................52 4.1 4.2 4.3 4.4 High Pressure Protection Control...........................................................52 Low Pressure Protection Control............................................................53 Discharge Pipe Protection Control .........................................................54 Inverter Protection Control ...................................................................
SiBE34-703 3.12 “CA” Indoor Unit: Malfunction of Thermistor for Discharge Air...............136 3.13 “CJ” Indoor Unit: Malfunction of Thermostat Sensor in Remote Controller ................................................................................137 3.14 “E1” Outdoor Unit: PC Board Defect ......................................................138 3.15 “E3” Outdoor Unit: Actuation of High Pressure Switch ..........................139 3.16 “E4” Outdoor Unit: Actuation of Low Pressure Sensor ...........
SiBE34-703 3.48 “UH” Malfunction of System, Refrigerant System Address Undefined ...............................................180 4. Troubleshooting by Indication on the Centralized Remote Controller............................................................181 4.1 “UE” Malfunction of Transmission between Centralized Remote Controller and Indoor Unit ...................................181 4.2 “M1” PC Board Defect ............................................................................182 4.
SiBE34-703 Index ............................................................................................. i Drawings & Flow Charts ...............................................................
Introduction SiBE34-703 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.
SiBE34-703 Introduction Caution 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.
Introduction SiBE34-703 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.
SiBE34-703 Introduction Caution Check to see if the parts and wires are mounted and connected properly, and if the connections at the soldered or crimped terminals are secure. Improper installation and connections can cause excessive heat generation, fire or an electrical shock. If the installation platform or frame has corroded, replace it. Corroded installation platform or frame can cause the unit to fall, resulting in injury. Check the grounding, and repair it if the equipment is not properly grounded.
Introduction 1.2 SiBE34-703 PREFACE Thank you for your continued patronage of Daikin products. This is the new service manual for Daikin's Year 2007 VRVIII-S series Heat Pump System. Daikin offers a wide range of models to respond to building and office air conditioning needs. We are confident that customers will be able to find the models that best suit their needs. This service manual contains information regarding the servicing of VRVIII-S series R-410A Heat Pump System.
SiBE34-703 Part 1 General Information 1. Model Names of Indoor/Outdoor Units....................................................2 2. External Appearance...............................................................................3 2.1 Indoor Units ..............................................................................................3 3. Capacity Range.......................................................................................
Model Names of Indoor/Outdoor Units SiBE34-703 1.
SiBE34-703 External Appearance 2. External Appearance 2.
Capacity Range SiBE34-703 3. Capacity Range Outdoor Units Capacity Range RXYSQ No of Indoor Units to be Connected Total Capacity Index of Indoor Units to be Connected 4HP 4P 5HP 5P 6HP 6P 6 8 9 50~130 62.5~162.5 70~182 Indoor Units Capacity Range Capacity Index 0.8HP 20 1HP 25 1.25HP 31.25 1.6HP 40 2HP 50 2.5HP 62.5 3.
SiBE34-703 Part 2 Specifications 1. Specifications ..........................................................................................6 1.1 Outdoor Units ...........................................................................................6 1.2 Indoor Units ..............................................................................................
Specifications SiBE34-703 1. Specifications 1.1 Outdoor Units Heat Pump 50Hz Model Name kcal / h Btu / h kW kcal / h Btu / h kW ★1 Cooling Capacity ★2 Heating Capacity Casing Color Dimensions: (H×W×D) Heat Exchanger Type Piston Displacement Number of Revolutions Comp. Motor Output×Number of Units Starting Method Type Motor Output Fan Air Flow Rate (C/H) Drive Liquid Pipe Connecting Pipes Gas Pipe Machine Weight mm m³/h r.p.m 2.5×1 3.
SiBE34-703 Specifications Model Name ★1 Cooling Capacity ★2 Heating Capacity Casing Color Dimensions: (H×W×D) Heat Exchanger Type Piston Displacement Number of Revolutions Comp. Motor Output×Number of Units Starting Method Type Motor Output Fan Air Flow Rate (C/H) Drive Liquid Pipe Connecting Pipes Gas Pipe Machine Weight Safety Devices Defrost Method Capacity Control Refrigerant Name Refrigerant Charge Control Refrigerator Oil Charge Volume Standard Accessories Drawing No. m³/h r.p.
Specifications 1.2 SiBE34-703 Indoor Units Ceiling Mounted Cassette Type (Double Flow) Model FXCQ20M8V3 FXCQ25M8V3 FXCQ32M8V3 FXCQ40M8V3 kcal/h Btu/h kW kW kcal/h Btu/h kW ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.
SiBE34-703 Specifications Ceiling Mounted Cassette Type (Double Flow) Model FXCQ50M8V3 FXCQ63M8V3 FXCQ80M8V3 FXCQ125M8V3 kcal/h Btu/h kW kW kcal/h Btu/h kW ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.
Specifications SiBE34-703 Ceiling Mounted Cassette Type (Multi-flow) Model FXFQ20P7VE FXFQ25P7VE FXFQ32P7VE FXFQ40P7VE kcal/h Btu/h kW kW kcal/h Btu/h kW ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.
SiBE34-703 Specifications Ceiling Mounted Cassette Type (Multi-flow) Model FXFQ50P7VE FXFQ63P7VE FXFQ80P7VE FXFQ100P7VE kcal/h Btu/h kW kW kcal/h Btu/h kW ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.
Specifications SiBE34-703 Model FXFQ125P7VE kcal/h Btu/h kW kW kcal/h Btu/h kW ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.
SiBE34-703 Specifications 600×600 Ceiling Mounted Cassette Type (Multi Flow) Model FXZQ20M8V1 FXZQ25M8V1 FXZQ32M8V1 kcal/h Btu/h kW kW kcal/h Btu/h kW ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.
Specifications SiBE34-703 600×600 Ceiling Mounted Cassette Type (Multi Flow) Model FXZQ40M8V1 FXZQ50M8V1 kcal/h Btu/h kW kW kcal/h Btu/h kW ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.
SiBE34-703 Specifications Ceiling Mounted Cassette Corner Type Model kcal/h Btu/h kW kW kcal/h Btu/h kW ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.
Specifications SiBE34-703 Slim Ceiling Mounted Duct Type (with Drain Pump) Model kcal/h Btu/h kW kW kcal/h Btu/h kW ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.0°CWB) ★3 Heating Capacity Casing Dimensions: (H×W×D) Rows×Stages×Fin Pitch Coil (Cross Fin Coil) Face Area Model Type Motor Output × Number of Units Fan Air Flow Rate (H/L) External Static Pressure Drive mm mm m² FXDQ20NAVE FXDQ25NAVE FXDQ32NAVE 2,000 7,800 2.3 2.2 2,200 8,500 2.5 Galvanized Steel Plate 200×900×620 2×12×1.5 0.
SiBE34-703 Specifications Slim Ceiling Mounted Duct Type (with Drain Pump) Model kcal/h Btu/h kW kW kcal/h Btu/h kW ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.0°CWB) ★3 Heating Capacity Casing Color Dimensions: (H×W×D) Rows×Stages×Fin Pitch Coil (Cross Fin Coil) Face Area Model Type Motor Output × Number of Units Fan Air Flow Rate (H/L) External Static Pressure Drive mm mm m² FXDQ40NAVE FXDQ50NAVE FXDQ63NAVE 4,000 16,000 4.7 4.5 4,300 17,100 5.
Specifications SiBE34-703 Slim Ceiling Mounted Duct Type (with Drain Pump) Model FXDQ20M8VE FXDQ25M8VE kcal/h Btu/h kW kW kcal/h Btu/h kW ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.
SiBE34-703 Specifications Ceiling Mounted Built-in Type Model FXSQ20M8V3 FXSQ25M8V3 FXSQ32M8V3 kcal/h Btu/h kW kW kcal/h Btu/h kW ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.
Specifications SiBE34-703 Ceiling Mounted Built-in Type Model FXSQ40M8V3 FXSQ50M8V3 FXSQ63M8V3 kcal/h Btu/h kW kW kcal/h Btu/h kW ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.
SiBE34-703 Specifications Ceiling Mounted Built-in Type Model FXSQ80M8V3 FXSQ100M8V3 FXSQ125M8V3 kcal/h Btu/h kW kW kcal/h Btu/h kW ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.
Specifications SiBE34-703 Ceiling Mounted Duct Type Model kcal/h Btu/h kW kW kcal/h Btu/h kW ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.0°CWB) ★3 Heating Capacity Casing Dimensions: (H×W×D) Coil (Cross Rows×Stages×Fin Pitch Fin Coil) Face Area Model Type Motor Output × Number of Units Fan Air Flow Rate (H/L) mm mm m² FXMQ63MAVE FXMQ80MAVE 5,000 19,800 5.8 5.6 5,400 21,500 6.3 Galvanized Steel Plate 390×720×690 3×16×2.0 0.181 D11/2D3AB1VE Sirocco Fan 6,300 24,900 7.3 7.1 6,900 27,300 8.
SiBE34-703 Specifications Ceiling Mounted Duct Type Model FXMQ100MAVE FXMQ125MAVE 10,000 39,600 11.6 11.2 10,800 42,700 12.5 Galvanized Steel Plate 390×1,110×690 3×16×2.0 0.319 2D11/2D3AG1VE Sirocco Fan 12,500 49,500 14.5 14.0 13,800 54,600 16.0 Galvanized Steel Plate 390×1,110×690 3×16×2.0 0.319 2D11/2D3AF1VE Sirocco Fan W 270×1 430×1 m³/min cfm 29/23 1,024/812 36/29 1,271/1,024 157/172-98/98 ★4 191/245-152/172 ★4 kcal/h Btu/h kW kW kcal/h Btu/h kW ★1 Cooling Capacity (19.
Specifications SiBE34-703 Ceiling Suspended Type Model kcal/h Btu/h kW kW kcal/h Btu/h kW ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.0°CWB) ★3 Heating Capacity Casing Color Dimensions: (H×W×D) Rows×Stages×Fin Pitch Coil (Cross Fin Coil) Face Area Model Type Motor Output × Number of Units Fan Air Flow Rate (H/L) mm mm m² FXHQ32MAVE FXHQ63MAVE FXHQ100MAVE 3,200 12,600 3.7 3.6 3,400 13,600 4.0 White (10Y9/0.5) 195×960×680 2×12×1.75 0.182 3D12K1AA1 Sirocco Fan 6,300 24,900 7.3 7.
SiBE34-703 Specifications Wall Mounted Type Model kcal/h Btu/h kW kW kcal/h Btu/h kW ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.
Specifications SiBE34-703 Wall Mounted Type Model kcal/h Btu/h kW kW kcal/h Btu/h kW ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.
SiBE34-703 Specifications Floor Standing Type Model kcal/h Btu/h kW kW kcal/h Btu/h kW ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.
Specifications SiBE34-703 Floor Standing Type Model kcal/h Btu/h kW kW kcal/h Btu/h kW ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.
SiBE34-703 Specifications Concealed Floor Standing Type Model kcal/h Btu/h kW kW kcal/h Btu/h kW ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.
Specifications SiBE34-703 Concealed Floor Standing Type Model kcal/h Btu/h kW kW kcal/h Btu/h kW ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.
SiBE34-703 Specifications Ceiling Suspended Cassette Type Model Indoor Unit FXUQ71MAV1 FXUQ100MAV1 FXUQ125MAV1 Connection Unit BEVQ71MAVE BEVQ100MAVE BEVQ125MAVE 7,100 28,300 8.3 8.0 7,700 30,700 9.0 White (10Y9/0.5) 165×895×895 3×6×1.5 0.265 QTS48A10M Turbo Fan 10,000 39,600 11.6 11.2 10,800 42,700 12.5 White (10Y9/0.5) 230×895×895 3×8×1.5 0.353 QTS50B15M Turbo Fan 12,500 49,500 14.5 14.0 12,000 47,800 14.0 White (10Y9/0.5) 230×895×895 3×8×1.5 0.
Specifications SiBE34-703 BEV Units Model Power Supply Casing Dimensions: (H×W×D) mm Sound Absorbing Thermal Insulation Material Piping Connection BEVQ125MAVE 1 Phase 50Hz 220~240V Galvanized Steel Plate 100×350×225 Flame and Heat Resistant Foamed Polyethylene 9.5mm (Flare Connection) 15.9mm (Flare Connection) Liquid Pipes Gas Pipes Outdoor Unit Liquid Pipes 9.5mm (Flare Connection) 9.5mm (Flare Connection) 9.5mm (Flare Connection) Suction Gas Pipes 15.9mm (Flare Connection) 15.
SiBE34-703 Part 3 List of Electrical and Functional Parts 1. List of Electrical and Functional Parts ...................................................34 1.1 Outdoor Unit ...........................................................................................
List of Electrical and Functional Parts SiBE34-703 1. List of Electrical and Functional Parts 1.
SiBE34-703 Part 4 Refrigerant Circuit 1. Refrigerant Circuit .................................................................................36 1.1 RXYSQ4 / 5 / 6P ....................................................................................36 2. Functional Parts Layout ........................................................................38 2.1 RXYSQ4 / 5 / 6P ....................................................................................
Refrigerant Circuit SiBE34-703 1. Refrigerant Circuit 1.1 RXYSQ4 / 5 / 6P No. in refrigerant Symbol system diagram 36 Name 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 Since the system is of air heat exchanging type, the fan is operated at 8-step rotation speed by using the inverter.
Refrigerant Circuit H F Subcooling heat exchanger A O S T E P M D D N G SiBE34-703 C : 3D052628 Refrigerant Circuit 37
Functional Parts Layout SiBE34-703 2. Functional Parts Layout 2.
SiBE34-703 Part 5 Function 1. Operation Mode ....................................................................................40 2. Basic Control.........................................................................................41 2.1 2.2 2.3 2.4 Normal Operation ...................................................................................41 Compressor PI Control...........................................................................42 Electronic Expansion Valve PI Control...............
Operation Mode SiBE34-703 1.
SiBE34-703 Basic Control 2. Basic Control 2.1 Normal Operation Cooling Operation Actuator Operation Compressor Compressor PI control Outdoor unit fan Four way valve Main electronic expansion valve (EV1) Subcooling electronic expansion valve (EV3) Cooling fan control OFF 480 pls Remarks Used for high pressure protection control, low pressure protection control, discharge pipe temperature protection control, and compressor operating frequency upper limit control with inverter protection control.
Basic Control 2.2 SiBE34-703 Compressor PI Control Compressor PI Control Carries out the compressor capacity PI control to maintain Te at constant during cooling operation and Tc at constant during heating operation to ensure stable unit performance. [Cooling operation] Controls compressor capacity to adjust Te to achieve target value (TeS).
SiBE34-703 2.3 Basic Control Electronic Expansion Valve PI Control Main Electronic Expansion Valve EV1 Control Carries out the electronic expansion valve (Y1E) PI control to maintain the evaporator outlet superheated degree (SH) at constant during heating operation to make maximum use of the outdoor unit heat exchanger (evaporator).
Basic Control 2.4 SiBE34-703 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. Furthermore, when outdoor temperature ≥ 20°C, the compressor will run in Step 7 or higher. When outdoor temperature ≥ 18°C, it will run in Step 5 or higher. When outdoor temperature ≥ 12°C, it will run in Step 1 or higher.
SiBE34-703 Special Control 3. Special Control 3.1 Startup Control This control is used to equalize the pressure in the front and back of the compressor prior to the startup of the compressor, thus reducing startup loads. Furthermore, the inverter is turned ON to charge the capacitor. In addition, to avoid stresses to the compressor due to oil return or else after the startup, the following control is made and the position of the four way valve is also determined.
Special Control 3.2 SiBE34-703 Oil Return Operation In order to prevent the compressor from running out of oil, the oil return operation is conducted to recover oil flown out from the compressor to the system side. 3.2.1 Oil Return Operation in Cooling Operation [Start conditions] Referring to the set conditions for the following items, start the oil return operation in cooling.
SiBE34-703 Special Control 3.2.2 Oil Return Operation in Heating Operation [Conditions to start] The heating oil-returning operation is started referring following conditions. Integrated amount of displaced oil Timer (After the power is turned on, integrated operating-time is 2 hours and subsequently every 8 hours.) In addition, integrated amount of displaced oil is derived from Tc, Te, and the compressor load.
Special Control 3.3 SiBE34-703 Defrosting Operation 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. Outdoor heat exchanger heat transfer co-efficiency Temperature of heat-exchange (Tb) Timer (2 hours at the minimum) In addition, outdoor heat-exchange co-efficiency is derived from Tc, Te, and the compressor load.
SiBE34-703 3.4 Special Control Pump-down Residual Operation 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.
Special Control 3.5 SiBE34-703 Restart Standby Restart is stood by force to prevent frequent power-on/off and to equalize pressure in the refrigerant system. Actuator Operation Remarks Compressor OFF Outdoor unit fan Ta>30°C: STEP4 Ta≤30°C: OFF Four way valve Keep former condition. Main electronic expansion valve (EV1) 0 pls Subcooling electronic expansion valve (EV3) 0 pls Hot gas bypass valve (SVP) OFF Ending conditions 2 min.
SiBE34-703 3.6 Special Control Stopping Operation Operation of the actuator when the system is down, is cleared up. 3.6.1 When System is in Stop Mode Actuator Operation Compressor OFF Outdoor unit fan OFF Four way valve Keep former condition. Main electronic expansion valve (EV1) 0 pls Subcooling electronic expansion valve (EV3) 0 pls Hot gas bypass valve (SVP) OFF Ending conditions Indoor unit thermostat is turned ON.
Protection Control SiBE34-703 4. Protection Control 4.1 High Pressure Protection Control 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. [In cooling operation] Pc>3.
SiBE34-703 4.2 Protection Control Low Pressure Protection Control This low pressure protection control is used to protect compressors against the transient decrease of low pressure. [In cooling operation] Low pressure not limited Pe<0.25MPa Pe: LP pressure sensor detection value Pe>0.39MPa Low pressure limited Hot gas SVP = OFF Pe<0.15MPa Pe>0.30MPa 36Hz Unload Hot gas SVP = ON Pe<0.07MPa Low pressure standby When occurring 3 times within 30 min., the malfunction code "E4" is output.
Protection Control 4.3 SiBE34-703 Discharge Pipe Protection Control This discharge pipe protection control is used to protect the compressor internal temperature against a malfunction or transient increase of discharge pipe temperature.
SiBE34-703 4.4 Protection Control Inverter Protection Control Inverter current protection control and inverter fin temperature control are performed to prevent tripping due to a malfunction, or transient inverter overcurrent, and fin temperature increase. [Inverter overcurrent protection control] Not limited & Inverter current >12A •Inverter current ≤ 12A •INV upper limit frequency=max Hz Limited INV upper limit frequency: 1-step down from current compressor frequency •10 sec.
Other Control SiBE34-703 5. Other Control 5.1 Demand Operation In order to save the power consumption, the capacity of outdoor unit is saved with control forcibly by using “Demand 1 Setting”. To operate the unit with this mode, additional setting of “Continuous Demand Setting”. [Demand 1 setting] Setting Demand 1 setting 1 Demand 1 setting 2 (factory setting) Demand 1 setting 3 Standard for upper limit of power consumption Approx. 60% Approx. 70% Approx.
SiBE34-703 Outline of Control (Indoor Unit) 6. Outline of Control (Indoor Unit) 6.1 Drain Pump Control 1. 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: ∗ 1. The objective of residual operation is to completely drain any moisture adhering to the fin of the indoor unit heat exchanger when the thermostat goes off during cooling operation. 6.1.
Outline of Control (Indoor Unit) SiBE34-703 6.1.3 When the Float Switch is Tripped During Heating Operation: 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. 6.1.4 When the Float Switch is Tripped and “AF” is Displayed on the Remote Controller: Note: 58 If the float switch is tripped five times in succession, a drain malfunction is determined to have occurred.
SiBE34-703 6.2 Outline of Control (Indoor Unit) 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. (This feature is available on double flow, multiflow and corner types.
Outline of Control (Indoor Unit) 6.3 SiBE34-703 Thermostat Sensor in Remote Controller Temperature is controlled by both the thermostat sensor in remote controller and air suction thermostat in the indoor unit. (This is however limited to when the field setting for the thermostat sensor in remote controller is set to “Use.
SiBE34-703 Heating Outline of Control (Indoor Unit) 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 body thermostat sensor only, the unit may therefore be turned off by the thermostat before the lower part of the room reaches the preset temperature.
Outline of Control (Indoor Unit) 6.4 SiBE34-703 Freeze Prevention Freeze 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 prevention operation in accordance with the following conditions, and is also set in accordance with the conditions given below. Conditions for starting freeze prevention: Temperature is –1°C or less for total of 40 min.
SiBE34-703 6.5 Outline of Control (Indoor Unit) View of Operations of Swing Flaps Swing flaps work as following.
Outline of Control (Indoor Unit) 6.6 SiBE34-703 Electronic Expansion Valve Control • Electronic expansion Valve Control In cooling, to maximize the capacity of indoor unit heat exchanger (evaporator), operate the electronic expansion valve under PI control so that the evaporator outlet superheated degree (SH) will become constant.
SiBE34-703 Part 6 Test Operation 1. Test Operation ......................................................................................66 1.1 Procedure and Outline ...........................................................................66 1.2 Operation when Power is Turned On .....................................................69 2. Outdoor Unit PC Board Layout .............................................................70 3. Field Setting ...........................................................
Test Operation SiBE34-703 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.
SiBE34-703 Test Operation 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 OPERATION button (BS4) on outdoor unit PC board 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).
Test Operation SiBE34-703 1.1.4 Confirmation on Normal Operation • • • • • 68 Conduct normal unit operation after the check operation has been completed. (When outdoor air temperature is 24°CDB 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.
SiBE34-703 1.2 Test Operation 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 master 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 pushed during operation described above, the “UH” malfunction indicator blinks. (Returns to normal when automatic setting is complete.) 1.2.
Outdoor Unit PC Board Layout SiBE34-703 2.
SiBE34-703 Field Setting 3. Field Setting 3.1 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 malfunction. (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.) 3.1.
Field Setting SiBE34-703 3.1.2 Wireless Remote Controller - Indoor Unit BRC7C type BRC7E type BRC4C type 1. When in the normal mode, push the “ ” button for 4 seconds or more, and operation then enters the “field set mode.” 2. Select the desired “mode No.” with the “ ” button. 3. Pushing the “ ” button, select the first code No. 4. Pushing the “ ” button, select the second code No. 5. Push the timer “ ” button and check the settings. 6. Push the “ ” button to return to the normal mode.
SiBE34-703 Field Setting 3.1.3 Simplified Remote Controller BRC2C51 1. Remove the upper part of remote controller. 2. When in the normal mode, press the [BS6] BUTTON ( ) (field set), and the FIELD SET MODE is entered. 3. Select the desired MODE No. with the [BS2] BUTTON ( ) (temperature setting ▲) and the [BS3] BUTTON ( ) (temperature setting ▼). 4. During group control, when setting by each indoor unit (mode No. 20, 22, and 23 have been selected), push the [BS8] ( ) BUTTON (unit No.
Field Setting SiBE34-703 3.1.4 Setting Contents and Code No. – VRV Indoor Unit VRV Mode Setting Setting Contents Switch system No. No. indoor Note 2 unit 0 Filter contamination heavy/ settings 10(20) light (Setting for display time to clean air filter) (Sets display time to clean air filter to half when there is heavy filter contamination.) 12(22) 13(23) 15(25) 1 Long life filter type 2 Super long life filter Light 02 Approx. 10,000 hrs. Heavy Approx. 5,000 hrs. Long life filter Approx.
SiBE34-703 Field Setting 3.1.
Field Setting SiBE34-703 3.1.6 Detailed Explanation of Setting Modes Filter Sign Setting If switching the filter sign ON time, set as given in the table below. Set Time Filter Specs. Setting Contamination Light Contamination Heavy Standard Long Life Ultra Long Life Filter 200 hrs. 100 hrs. 2,500 hrs. 1,250 hrs. 10,000 hrs. 5,000 hrs. Ultra-Long-Life Filter Sign Setting When a Ultra-long-life filter is installed, the filter sign timer setting must be changed. Setting Table Mode No.
SiBE34-703 Field Setting Auto Restart after Power Failure Reset For the air conditioners with no setting for the function (same as factory setting), 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.
Field Setting SiBE34-703 Air Flow Direction Setting Set the air flow direction of indoor units as given in the table below. (Set when optional air outlet blocking pad has been installed.) The second code No. is factory set to “01.” Setting Table Mode No. 13 (23) First Code No. 1 Second Code No. 01 02 03 Setting F : 4-direction air flow T : 3-direction air flow W : 2-direction air flow Setting of Air Flow Direction Adjustment Only the model FXKQ has the function.
SiBE34-703 Field Setting Setting of Air Flow Direction Adjustment Range Make the following air flow direction setting according to the respective purpose. Setting Table Mode No. First Code No. Second Code No. 01 13 (23) 4 02 03 Setting Upward (Draft prevention) Standard Downward (Ceiling soiling prevention) Air flow rate switching at discharge grille for field air flow rate switching When the optional parts (high performance filter, etc.
Field Setting SiBE34-703 3.1.7 Centralized Control Group No. Setting BRC1C Type In order to conduct the central remote control using the central 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 central remote control using the operating remote controller. 1. While in normal mode, press and hold the “ ” switch for a period of four seconds or more to set the system to "Field Setting Mode". 2.
SiBE34-703 Field Setting Group No. setting by wireless remote controller for centralized control 1. When in the normal mode, push “ ” button for 4 seconds or more, and operation then enters the “field set mode.” 2. Set mode No. “00” with “ ” button. 3. Set the group No. for each group with “ ”“ ” button (advance/backward). 4. Enter the selected group numbers by pushing “ ” button. 5. Push “ ” button and return to the normal mode. BRC7C Type BRC7E Type BRC4C Type Group No.
Field Setting SiBE34-703 3.1.8 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.) Central remote controller is normally available for operations.
SiBE34-703 How to Select Operation Mode Example ON by remote controller (Unified ON by central remote controller) ↓ Rejection Field Setting 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.
Field Setting 3.2 SiBE34-703 Field Setting from Outdoor Unit 3.2.1 Setting by Dip Switches The following field settings are made by dip switches on PC board. Dipswitch No. DS1-1 DS1-2 Setting ON OFF (Factory set) ON OFF (Factory set) Setting item Description Cool / Heat change over setting Used to set cool / heat change over setting by remote controller equipped with outdoor unit. (Note 1) Not used Do not change the factory settings.
SiBE34-703 Caution Field Setting Capacity Setting after changing the main P.C.Board(A1P) to spare parts P.C.B. When you change the main P.C.Board(A1P) to spare parts P.C.B., please carry out the following setting. Please Attach the Capacity Setting Adapter corresponding to Capacity Class (ex. 112, 140, 160) in connector X51A.
Field Setting SiBE34-703 Setting by pushbutton switches The following settings are made by pushbutton switches on PC board. LED indication H1P H2P H3P H4P H5P H6P H7P 7 7 8 7 7 7 7 (Factory setting) BS1 BS2 BS3 BS4 BS5 MODE SET RETURN TEST RESET (V2760) There are the following three setting modes. c Setting mode 1 (H1P off) Initial status (when normal) : Also indicates during “abnormal”.
SiBE34-703 Field Setting a. “Setting mode 1” This mode is used to set and check the following items. 1. Set items ············ In order to make COOL/HEAT selection in a batch of outdoor unit group, change the setting. • COOL/HEAT selection (IND) ·····················Used to select COOL or HEAT by individual outdoor unit (factory set). • COOL/HEAT selection (MASTER) ············Used to select COOL or HEAT by outdoor unit group with the master unit.
Field Setting SiBE34-703 b. “Setting mode 2” No. Push and hold the MODE (BS1) button for 5 seconds and set to “Setting mode 2”.
SiBE34-703 Field Setting Setting item display No.
Field Setting SiBE34-703 Setting item display No.
SiBE34-703 Field Setting c. Monitor mode No. To enter the monitor mode, push the MODE (BS1) button when in “Setting mode 1”. Push the SET (BS2) button and set the LED display to a setting item. Push the RETURN (BS3) button to display different data of set items. Push the RETURN (BS3) button and switches to the initial status of “Monitor mode”. ∗ Push the MODE (BS1) button and returns to “Setting mode 1”.
Field Setting SiBE34-703 Push the SET button and match with the LEDs No. 1 - 15, push the RETURN button, and confirm the data for each setting. ★ Data such as addresses and number of units is expressed as binary numbers; the two ways of expressing are as follows: 9 797997 16 32 4 8 1 2 In c the address is 010110 (binary number), which translates to 16 + 4 + 2 = 22 (base 10 number). In other words, the address is 22. 977 7979 64 16 No.12 128 32 977 7997 4 No.13 8 The No.
SiBE34-703 Field Setting 3.2.2 Cool / Heat Mode Switching There are the following 4 cool/heat switching modes. c Set cool/heat separately for each outdoor unit system by indoor unit remote controller. d Set cool/heat separately for each outdoor unit system by cool/heat switching remote controller. e Set cool/heat for more than one outdoor unit system simultaneously in accordance with unified master outdoor unit by indoor unit remote controller.
Field Setting SiBE34-703 d Set Cool / Heat Separately for Each Outdoor Unit System by Cool/Heat Switching Remote Controller It does not matter whether or not there is outdoor - outdoor unit wiring. Set outdoor unit PC board DS1-1 to OUT (factory set). Set cool/heat switching to IND (individual) for “Setting mode 1” (factory set).
SiBE34-703 Field Setting 3.2.3 Setting of Low Noise Operation and Demand Operation Setting of Low Noise Operation By connecting the external contact input to the low noise input of the outdoor unit external control adapter (optional), you can lower operating noise by 2-3 dB. When the low noise operation is carried out automatically at night (The external control adapter for outdoor unit is not required) 1. While in "Setting mode 2", select the setting condition (i.e.
Field Setting SiBE34-703 Setting of Demand Operation By connecting the external contact input to the demand input of the outdoor unit external control adapter (optional), the power consumption of unit operation can be saved suppressing the compressor operating condition. Set item Demand Condition Mode 1 Mode 2 Mode 3 Content The compressor operates at approx. 60% or less of rating. The compressor operates at approx. 70% or less of rating. The compressor operates at approx. 80% or less of rating.
SiBE34-703 Field Setting Detailed Setting Procedure of Low Noise Operation and Demand Control 1. Setting mode 1 (H1P off) c In setting mode 2, push the BS1 (MODE button) one time. → Setting mode 1 is entered and H1P off. During the setting mode 1 is displayed, “In low noise operation” and “In demand control” are displayed. 2. Setting mode 2 (H1P on) c In setting 1, push and hold the BS1 (MODE button) for more than 5 seconds. → Setting mode 2 is entered and H1P lights.
Field Setting SiBE34-703 {: ON d c Setting No. Setting contents 22 External low noise / Demand setting { z z z z Setting No.
SiBE34-703 Field Setting 3.2.4 Setting of Refrigerant Additional Charging Operation * c d e f g h i Test Operation When the outdoor unit is stopped and the entire quantity of refrigerant cannot be charged from the stop valve on the liquid side, make sure to charge the remaining quantity of refrigerant using this procedure. If the refrigerant quantity is insufficient, the unit may malfunction. Turn ON the power of the indoor unit and the outdoor unit.
Field Setting SiBE34-703 3.2.5 Setting of Refrigerant Recovery Mode When carrying out the refrigerant collection on site, fully open the respective expansion valve of indoor and outdoor units All indoor and outdoor unit’s operation are prohibited. [Operation procedure] c In “Setting Mode 2” with units in stop mode, set “B Refrigerant Recovery / Vacuuming mode” to ON. The respective expansion valve of indoor and outdoor units are fully opened.
SiBE34-703 Field Setting 3.2.6 Setting of Vacuuming Mode In order to perform vacuuming operation at site, fully open the expansion valves of indoor and outdoor units and turn on some solenoid valves. [Operating procedure] c In “Setting Mode 2” with units in stop mode, set “B Refrigerant Recovery / Vacuuming mode” to ON. The respective expansion valve of indoor and outdoor units are fully opened.
Field Setting 102 SiBE34-703 Test Operation
SiBE34-703 Part 7 Troubleshooting 1. Symptom-based Troubleshooting .......................................................105 2. Troubleshooting by Remote Controller ...............................................108 2.1 2.2 2.3 2.4 The INSPECTION / TEST Button.........................................................108 Self-diagnosis by Wired Remote Controller .........................................109 Self-diagnosis by Wireless Remote Controller .....................................
SiBE34-703 3.27 “J9” Outdoor Unit: Malfunction of Subcooling Heat Exchanger Gas Pipe Thermistor (R4T) ..................................................................................154 3.28 “JA” Outdoor Unit: Malfunction of High Pressure Sensor......................155 3.29 “JC” Outdoor Unit: Malfunction of Low Pressure Sensor.......................156 3.30 “L1” Outdoor Unit: Malfunction of PC Board ..........................................157 3.
SiBE34-703 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 9 COOL-HEAT selection is disabled. 106 Symptom Supposed Cause Countermeasure The remote controller displays This remote controller has no Use a remote controller with "UNDER CENTRALIZED option to select cooling operation. option to select cooling operation. CONTROL". The remote controller displays "UNDER CENTRALIZED CONTROL", and the COOLHEAT selection remote controller is provided.
SiBE34-703 11 The system produces sounds. Symptom-based Troubleshooting Symptom 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 SiBE34-703 2. Troubleshooting by Remote Controller 2.1 The INSPECTION / TEST Button The following modes can be selected by using the [Inspection/Test Operation] button on the remote control. Indoor unit settings can be made • Filter sign time • Air flow direction • Others Depress Inspection/Test Operation button for more than 4 seconds. Local setting mode Service mode Depress Inspection/Test Operation button for more than 4 seconds. Service data can be obtained.
SiBE34-703 2.2 Troubleshooting by Remote Controller Self-diagnosis by Wired Remote Controller Explanation If operation stops due to malfunction, the remote controller’s operation LED blinks, and malfunction code is displayed. (Even if stop operation is carried out, malfunction contents are displayed when the inspection mode is entered.) The malfunction code enables you to tell what kind of malfunction caused operation to stop. See page 116 for malfunction code and malfunction contents.
Troubleshooting by Remote Controller 2.3 SiBE34-703 Self-diagnosis by Wireless Remote Controller In the Case of BRC7C Type BRC7E Type BRC4C Type If equipment stops due to a malfunction, the operation indicating LED on the light reception section flashes. The malfunction code can be determined by following the procedure described below. (The malfunction code is displayed when an operation error has occurred. In normal condition, the malfunction code of the last problem is displayed.) 1.
SiBE34-703 Troubleshooting by Remote Controller The lower digit of the code changes as shown below when the UP and DOWN buttons are pressed.
Troubleshooting by Remote Controller 2.4 SiBE34-703 Operation of the Remote Controller’s Inspection / Test Operation Button 0 Unit L0 Malfunction code Inspection Malfunction code blinks when a malfunction occurs. Normal display (No display) Inspection/test operation Push the button. 0 Unit L0 Malfunction code Inspection Inspection mode Inspection/test operation Example of capacity code display 0 7 1... Capacity code F... Indoor unit system code C... Indoor unit type code J...
SiBE34-703 2.5 Troubleshooting by Remote Controller Remote Controller Service Mode How to Enter the Service Mode Service Mode Operation Method Troubleshooting 1. Select the mode No. Set the desired mode No. with the button. (For wireless remote controller, Mode 43 only can be set.) 2. Select the unit No. (For group control only) Select the indoor unit No. to be set with the time mode . (For wireless remote controller, button.) 3. Make the settings required for each mode.
Troubleshooting by Remote Controller Mode No 40 Function Malfunction hysteresis display Contents and operation method Display malfunction hysteresis. The history No. can be changed with the button. SiBE34-703 Remote controller display example Unit 1 Malfunction code 2-U4 40 Malfunction code Hystory No: 1 - 9 1: Latest (VE007) 41 Display of sensor and address data Display various types of data. Select the data to be displayed with the button.
SiBE34-703 2.6 Troubleshooting by Remote Controller Remote Controller Self-Diagnosis Function The remote controller switches are equipped with a self diagnosis function so that more appropriate maintenance can be carried out. If a malfunction occurs during operation, the operation lamp, malfunction code and display of malfunctioning unit No. let you know the contents and location of the malfunction.
Troubleshooting by Remote Controller Indoor Unit Outdoor Unit 116 SiBE34-703 Malfunction Operation Inspection code lamp display A0 9 9 A1 9 9 Unit No.
SiBE34-703 Troubleshooting by Remote Controller Malfunction Operation Inspection code lamp display Outdoor Unit System Central Remote Controller and Schedule Timer Heat Reclaim Ventilation Unit No.
Troubleshooting by Remote Controller SiBE34-703 Malfunction code indication by outdoor unit PC board Contents of malfunction To enter the monitor mode, push the MODE (BS1) button when in “Setting mode 1”. Push the SET (BS2) button and set the LED display to a setting item.
SiBE34-703 Troubleshooting by Remote Controller 8: ON 7: OFF 9:Blink Confirmation of malfunction 1 Confirmation of malfunction 2 Confirmation of malfunction 3 Confirmation of malfunction 4 Malfunction 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 E1 9 7 7 9 9 E7 9 9 9 9 9 7 7 7 7 7 7 7 9 9 9 7 9 7 7 9 9 9 7 9 9 E9 9 9 7 7 9 H9 9 9 7 7 9 9 9 9 9 9 9 9 9 9 9 9 9 7 7 7 7 9 7 9 9 9 9 7 9 J5 9 7 9 7 9
Troubleshooting by Remote Controller SiBE34-703 Contents of malfunction To enter the monitor mode, push the MODE (BS1) button when in “Setting mode 1”.
SiBE34-703 Troubleshooting by Remote Controller 8: ON 7: OFF 9:Blink Confirmation of malfunction 1 Confirmation of malfunction 2 Confirmation of malfunction 3 Confirmation of malfunction 4 Malfunction 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 P1 9 9 7 7 7 9 7 7 7 9 9 7 7 7 7 9 7 7 P4 U0 9 9 7 7 9 U2 7 9 7 7 9 7 7 7 7 9 7 7 9 9 7 7 7 7 7 9 7 7 9 9 9 9 9 9 9 9 9 9 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7
Troubleshooting by Indication on the Remote Controller SiBE34-703 3. Troubleshooting by Indication on the Remote Controller 3.
SiBE34-703 3.2 Troubleshooting by Indication on the Remote Controller “A1 ” Indoor Unit: PC Board Defect Remote Controller Display A1 Applicable Models All indoor unit models Method of Malfunction Detection Check data from E²PROM. Malfunction Decision Conditions When data could not be correctly received from the E²PROM E²PROM : Type of nonvolatile memory. Maintains memory contents even when the power supply is turned off.
Troubleshooting by Indication on the Remote Controller 3.3 “A3 ” Indoor Unit: Malfunction of Drain Level Control System (S1L) Remote Controller Display A3 Applicable Models FXCQ, FXFQ, FXZQ, FXKQ, FXSQ, FXMQ, FXHQ (Option), FXAQ (Option) Method of Malfunction Detection By float switch OFF detection Malfunction Decision Conditions When rise of water level is not a condition and the float switch goes OFF.
SiBE34-703 Troubleshooting by Indication on the Remote Controller Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. NO Is power supply 220~240V provided? Provide 220~240V power supply. YES The float switch is connected to X8A (or X15A) of the indoor unit PC board.
Troubleshooting by Indication on the Remote Controller 3.
SiBE34-703 3.5 Troubleshooting by Indication on the Remote Controller “A7 ” Indoor Unit: Malfunction of Swing Flap Motor (M1S) Remote Controller Display A7 Applicable Models FXCQ, FXKQ, FXZQ, FXHQ, FXUQ Method of Malfunction Detection Utilizes ON/OFF of the limit switch when the motor turns. Malfunction Decision Conditions When ON/OFF of the microswitch for positioning cannot be reversed even though the swing flap motor is energized for a specified amount of time (about 30 seconds).
Troubleshooting by Indication on the Remote Controller SiBE34-703 Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Is power supply 220~240V provided? NO Provide 220~240V power supply. YES Indoor unit is a model equipped with a swing flap function NO Replace indoor unit PC board. YES The swing motor works when the power supply is turned off and then back on.
SiBE34-703 3.
Troubleshooting by Indication on the Remote Controller SiBE34-703 ∗1: Coil check method for the moving part of the electronic expansion valve Discount the electronic expansion valve from the PC board 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. 300Ω × 4. Blue × { Approx. 300Ω × 5. Red { Approx. 150Ω × { Approx. 150Ω × 6. Brown × { Approx. 150Ω × { Approx. 150Ω × 6.
SiBE34-703 3.7 Troubleshooting by Indication on the Remote Controller “AF” Indoor Unit: Drain Level above Limit Remote Controller Display AF Applicable Models FXCQ, FXSQ, FXKQ, FXMQ, FXDQ Method of Malfunction Detection Water leakage is detected based on float switch ON/OFF operation while the compressor is in non-operation. Malfunction Decision Conditions When the float switch changes from ON to OFF while the compressor is in non-operation.
Troubleshooting by Indication on the Remote Controller 3.8 SiBE34-703 “AJ ” Indoor Unit: Malfunction of Capacity Determination Device Remote controller display AJ Applicable Models All indoor unit models Method of Malfunction Detection Capacity is determined according to resistance of the capacity setting adaptor and the memory inside the IC memory on the indoor unit PC board, and whether the value is normal or abnormal is determined. Malfunction Decision Conditions Operation and: 1.
SiBE34-703 3.9 Troubleshooting by Indication on the Remote Controller “C4 ” Indoor Unit: Malfunction of Thermistor (R2T) for Heat Exchanger Remote Controller Display C4 Applicable Models All indoor unit models Method of Malfunction Detection Malfunction detection is carried out by temperature detected by heat exchanger thermistor. Malfunction Decision Conditions When the heat exchanger thermistor becomes disconnected or shorted while the unit is running.
Troubleshooting by Indication on the Remote Controller SiBE34-703 3.10 “C5 ” Indoor Unit: Malfunction of Thermistor (R3T) for Gas Pipes Remote Controller Display C5 Applicable Models All indoor unit models Method of Malfunction Detection Malfunction detection is carried out by temperature detected by gas pipe thermistor. Malfunction Decision Conditions When the gas pipe thermistor becomes disconnected or shorted while the unit is running.
SiBE34-703 Troubleshooting by Indication on the Remote Controller 3.11 “C9 ” Indoor Unit: Malfunction of Thermistor (R1T) for Suction Air Remote Controller Display C9 Applicable Models AII indoor unit models Method of Malfunction Detection Malfunction detection is carried out by temperature detected by suction air temperature thermistor. Malfunction Decision Conditions When the suction air temperature thermistor becomes disconnected or shorted while the unit is running.
Troubleshooting by Indication on the Remote Controller SiBE34-703 3.12 “CA ” Indoor Unit: Malfunction of Thermistor for Discharge Air Remote Controller Display CA Applicable Models AII indoor unit models Method of Malfunction Detection Malfunction detection is carried out by temperature detected by discharge air temperature thermistor. Malfunction Decision Conditions When the discharge air temperature thermistor becomes disconnected or shorted while the unit is running.
SiBE34-703 Troubleshooting by Indication on the Remote Controller 3.13 “CJ ” Indoor Unit: Malfunction of Thermostat Sensor in Remote Controller Remote Controller Display CJ Applicable Models AII indoor unit models Method of Malfunction Detection Malfunction detection is carried out by temperature detected by remote controller air temperature thermistor.
Troubleshooting by Indication on the Remote Controller SiBE34-703 3.14 “E1 ” Outdoor Unit: PC Board Defect Remote Controller Display E1 Applicable Models RXYSQ4~6P Method of Malfunction Detection Check data from E²PROM Malfunction Decision Conditions When data could not be correctly received from the E²PROM E²PROM : Type of nonvolatile memory. Maintains memory contents even when the power supply is turned off.
SiBE34-703 Troubleshooting by Indication on the Remote Controller 3.15 “E3 ” Outdoor Unit: Actuation of High Pressure Switch Remote Controller Display E3 Applicable Models RXYSQ4~6P Method of Malfunction Detection Abnormality is detected when the contact of the high pressure protection switch opens. Malfunction Decision Conditions Error is generated when the HPS activation count reaches the number specific to the operation mode.
Troubleshooting by Indication on the Remote Controller SiBE34-703 Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Check for the points shown below. Is the stop valve open? Is the HPS connector properly connected to the main PCB? Does the high pressure switch have continuity? Are the three points above OK? NO Rectify defective points, if any. YES · Mount a pressure gauge on the high-pressure service port.
SiBE34-703 Troubleshooting by Indication on the Remote Controller 3.16 “E4” Outdoor Unit: Actuation of Low Pressure Sensor Remote Controller Display E4 Applicable Models RXYSQ4~6P Method of Malfunction Detection Abnormality is detected by the pressure value with the low pressure sensor. Malfunction Decision Conditions Error is generated when the low pressure is dropped under specific pressure. Operating pressure:0.
Troubleshooting by Indication on the Remote Controller SiBE34-703 Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. NO Is the stop valve open? Open the stop valve. YES Mount a pressure gauge on the low-pressure service port. Connect the Service Checker. Reset the operation using the remote controller, and then restart the operation. Are the characteristics of the low pressure sensor normal? (See *1.
SiBE34-703 Troubleshooting by Indication on the Remote Controller 3.17 “E5 ” Inverter Compressor Motor Lock Remote Controller Display E5 Applicable Models RXYSQ4~6P Method of Malfunction Detection Inverter PC board takes the position signal from UVW line connected between the inverter and compressor, and the malfunction is detected when any abnormality is observed in the phasecurrent waveform.
Troubleshooting by Indication on the Remote Controller SiBE34-703 3.18 “E7 ” Malfunction of Outdoor Unit Fan Motor Remote Controller Display E7 Applicable Models RXYSQ4~6P Method of Malfunction Detection Malfunction of fan motor system is detected according to the fan speed detected by hall IC when the fan motor runs.
SiBE34-703 Troubleshooting by Indication on the Remote Controller 3.19 “E9” Outdoor Unit: Malfunction of Moving Part of Electronic Expansion Valve (Y1E, Y3E) Remote Controller Display E9 Applicable Models RXYSQ4~6P Method of Malfunction Detection Check disconnection of connector Check continuity of expansion valve coil Malfunction Decision Conditions Error is generated under no common power supply when the power is on.
Troubleshooting by Indication on the Remote Controller SiBE34-703 Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Turn power supply off, and turn power supply on again. Return to normal? YES NO Electronic expansion valve is connected to X21A and X22A of outdoor unit PC board (A1P). NO External factor other than malfunction (for example, noise etc.). After connecting, turn the power off and then back on again.
SiBE34-703 Troubleshooting by Indication on the Remote Controller 3.20 “F3 ” Outdoor Unit: Abnormal Discharge Pipe Temperature Remote Controller Display F3 Applicable Models RXYSQ4~6P Method of Malfunction Detection Abnormality is detected according to the temperature detected by the discharge pipe temperature sensor.
Troubleshooting by Indication on the Remote Controller SiBE34-703 3.21 “F6 ” Outdoor Unit: Refrigerant Overcharged Remote Controller Display F6 Applicable Models RXYSQ4~6P Method of Malfunction Detection Excessive charging of refrigerant is detected by using the heat exchanging deicer temperature during a check operation. Malfunction Decision Conditions When the amount of refrigerant, which is calculated by using the heat exchanging deicer temperature during a check run, exceeds the standard.
SiBE34-703 Troubleshooting by Indication on the Remote Controller 3.22 “H9” Outdoor Unit: Malfunction of Thermistor (R1T) for Outdoor Air Remote Controller Display H9 Applicable Models RXYSQ4~6P Method of Malfunction Detection Malfunction is detected from the temperature detected by the outdoor air thermistor. Malfunction Decision Conditions When the outside air temperature thermistor has short circuit or open circuit.
Troubleshooting by Indication on the Remote Controller SiBE34-703 3.23 “J3 ” Outdoor Unit: Malfunction of Discharge Pipe Thermistor (R2T) Remote Controller Display J3 Applicable Models RXYSQ4~6P Method of Malfunction Detection Malfunction is detected from the temperature detected by discharge pipe temperature thermistor. Malfunction Decision Conditions When a short circuit or an open circuit in the discharge pipe temperature thermistor is detected.
SiBE34-703 Troubleshooting by Indication on the Remote Controller 3.24 “J5” Outdoor Unit: Malfunction of Thermistor (R3T, R5T) for Suction Pipe 1, 2 Remote Controller Display J5 Applicable Models RXYSQ4~6P Method of Malfunction Detection Malfunction is detected from the temperature detected by the thermistor for suction pipe 1, 2. Malfunction Decision Conditions When a short circuit or an open circuit in the thermistor for suction pipe 1, 2 are detected.
Troubleshooting by Indication on the Remote Controller SiBE34-703 3.25 “J6” Outdoor Unit: Malfunction of Thermistor (R6T) for Outdoor Unit Heat Exchanger Remote Controller Display J6 Applicable Models RXYSQ4~6P Method of Malfunction Detection Malfunction is detected from the temperature detected by the heat exchanger thermistor. Malfunction Decision Conditions When a short circuit or an open circuit in the heat exchange thermistor is detected.
SiBE34-703 Troubleshooting by Indication on the Remote Controller 3.26 “J7” Outdoor Unit: Malfunction of Thermistor (R7T) for Outdoor Unit Liquid Pipe Remote Controller Display J7 Applicable Models RXYSQ4~6P Method of Malfunction Detection Malfunction is detected from the temperature detected by the liquid pipe thermistor. Malfunction Decision Conditions When a short circuit or an open circuit in the heat exchange thermistor is detected.
Troubleshooting by Indication on the Remote Controller SiBE34-703 3.27 “J9” Outdoor Unit: Malfunction of Subcooling Heat Exchanger Gas Pipe Thermistor (R4T) Remote Controller Display J9 Applicable Models RXYSQ4~6P Method of Malfunction Detection Malfunction is detected according to the temperature detected by subcooling heat exchanger gas pipe thermistor. Malfunction Decision Conditions When the subcooling heat exchanger gas pipe thermistor is short circuited or open.
SiBE34-703 Troubleshooting by Indication on the Remote Controller 3.28 “JA ” Outdoor Unit: Malfunction of High Pressure Sensor Remote Controller Display JA Applicable Models RXYSQ4~6P Method of Malfunction Detection Malfunction is detected from the pressure detected by the high pressure sensor. Malfunction Decision Conditions When the high pressure sensor is short circuit or open circuit. Supposed Causes Defect of high pressure sensor Connection of low pressure sensor with wrong connection.
Troubleshooting by Indication on the Remote Controller SiBE34-703 3.29 “JC ” Outdoor Unit: Malfunction of Low Pressure Sensor Remote Controller Display JC Applicable Models RXYSQ4~6P Method of Malfunction Detection Malfunction is detected from pressure detected by low pressure sensor. Malfunction Decision Conditions When the low pressure sensor is short circuit or open circuit. Supposed Causes Defect of low pressure sensor Connection of high pressure sensor with wrong connection.
SiBE34-703 Troubleshooting by Indication on the Remote Controller 3.30 “L1 ” Outdoor Unit: Malfunction of PC Board Remote Controller Display L1 Applicable Models RXYSQ4~6P Method of Malfunction Detection Detect malfunctions by current value during waveform output before compressor startup.
Troubleshooting by Indication on the Remote Controller SiBE34-703 3.31 “L4” Outdoor Unit: Malfunction of Inverter Radiating Fin Temperature Rise Remote Controller Display L4 Applicable Models RXYSQ4~6P Method of Malfunction Detection Fin temperature is detected by the thermistor of the radiation fin. Malfunction Decision Conditions When the temperature of the inverter radiation fin increases above 83°C.
SiBE34-703 Troubleshooting by Indication on the Remote Controller 3.32 “L5” Outdoor Unit: Inverter Compressor Abnormal Remote Controller Display L5 Applicable Models RXYSQ4~6P Method of Malfunction Detection Malfunction is detected from current flowing in the power transistor. Malfunction Decision Conditions When an excessive current flows in the power transistor. (Instantaneous overcurrent also causes activation.
Troubleshooting by Indication on the Remote Controller SiBE34-703 3.33 “L8 ” Outdoor Unit: Inverter Current Abnormal Remote Controller Display L8 Applicable Models RXYSQ4~6P Method of Malfunction Detection Malfunction is detected by current flowing in the power transistor. Malfunction Decision Conditions When overload in the compressor is detected.
SiBE34-703 Troubleshooting by Indication on the Remote Controller 3.34 “L9” Outdoor Unit: Inverter Start up Error Remote Controller Display L9 Applicable Models RXYSQ4~6P Method of Malfunction Detection Malfunction is detected from current flowing in the power transistor.
Troubleshooting by Indication on the Remote Controller SiBE34-703 3.35 “LC ” Outdoor Unit: Malfunction of Transmission between Inverter and Control PC Board Remote Controller Display LC Applicable Models RXYSQ4~6P Method of Malfunction Detection Check the communication state between inverter PC board and control PC board by microcomputer. Malfunction Decision Conditions When the correct communication is not conducted in certain period.
SiBE34-703 Troubleshooting by Indication on the Remote Controller 3.36 “P1 ” Outdoor Unit: High Voltage of Capacitor in Main Inverter Circuit Remote Controller Display P1 Applicable Models RXYSQ4~6P Method of Malfunction Detection Malfunction is detected according to the voltage waveform of main circuit capacitor built in the inverter. Malfunction Decision Conditions When the aforementioned voltage waveform becomes identical with the waveform of the power supply open phase.
Troubleshooting by Indication on the Remote Controller SiBE34-703 3.37 “UO ” Outdoor Unit: Low Pressure Drop Due to Refrigerant Shortage or Electronic Expansion Valve Failure Remote Controller Display U0 Applicable Models RXYSQ4~6P Method of Malfunction Detection Short of gas malfunction is detected by discharge pipe temperature thermistor and low pressure saturation temperature.
SiBE34-703 Troubleshooting by Indication on the Remote Controller Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Cooling YES NO The suction pipe1 temp. minus low pressure saturation temp. is 20 ˚C or higher. Low pressure is 0.25 MPa or less. NO The voltage of X18A pins (2) and (3) on main outdoor unit PC board (A1P) is 1.0 VDC or less.
Troubleshooting by Indication on the Remote Controller SiBE34-703 3.38 “U2 ” Power Supply Insufficient or Instantaneous Failure Remote Controller Display U2 Applicable Models RXYSQ4~6P Method of Malfunction Detection Detection of voltage of main circuit capacitor built in the inverter and power supply voltage. Malfunction Decision Conditions When the abnormal voltage of main circuit capacitor built in the inverter and abnormal power supply voltage are detected.
SiBE34-703 Troubleshooting by Indication on the Remote Controller Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Have the power supply voltages between L1 and L2, L2 and L3, and L1 and L3 fallen within the range of 380 to 415V±10% (50 Hz) and between L and N within the range of 220 to 240V±10% (50 Hz)? NO Correct the power supply voltages. If L2 or Phase N is open, replace the switch box.
Troubleshooting by Indication on the Remote Controller SiBE34-703 3.39 “U3 ” Check Operation not Executed Remote Controller Display U3 Applicable Models RXYSQ4~6P Method of Malfunction Detection Check operation is executed or not Malfunction Decision Conditions Malfunction is decided when the unit starts operation without check operation. Supposed Causes Check operation is not executed.
SiBE34-703 Troubleshooting by Indication on the Remote Controller 3.40 “U4” Malfunction of Transmission between Indoor Units and Outdoor Units Remote Controller Display U4 Applicable Models AII indoor unit models RXYSQ4~6P Method of Malfunction Detection Microcomputer checks if transmission between indoor and outdoor units is normal.
Troubleshooting by Indication on the Remote Controller SiBE34-703 Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Has the indoor or outdoor unit PC board been replaced, or has the indoor - outdoor or outdoor - outdoor unit transmission wiring been modified? YES Push and hold the RESET button on the master outdoor unit PC Board for 5 seconds. ∗ The unit will not operate for up to 12 minutes.
SiBE34-703 Troubleshooting by Indication on the Remote Controller 3.41 “U5 ” Malfunction of Transmission between Remote Controller and Indoor Unit Remote Controller Display U5 Applicable Models AII indoor unit models Method of Malfunction Detection In case of controlling with 2-remote controller, check the system using microcomputer is signal transmission between indoor unit and remote controller (main and sub) is normal.
Troubleshooting by Indication on the Remote Controller SiBE34-703 3.42 “U8 ” Malfunction of Transmission between Main and Sub Remote Controllers Remote Controller Display U8 Applicable Models AII indoor unit models Method of Malfunction Detection In case of controlling with 2-remote controller, check the system using microcomputer if signal transmission between indoor unit and remote controller (main and sub) is normal.
SiBE34-703 Troubleshooting by Indication on the Remote Controller 3.
Troubleshooting by Indication on the Remote Controller SiBE34-703 Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. "U9" has been displayed for 2 minutes or more. YES Re-diagnose by display after passage of 2 minutes or more. NO Turn on all indoor units. The "UA" display blinks on the remote controllers of other units within the same refrigerant system. YES Refer to failure diagnosis for "UA" malfunction code.
SiBE34-703 Troubleshooting by Indication on the Remote Controller 3.44 “UA ” Excessive Number of Indoor Units Remote Controller Display UA Applicable Models AII indoor unit models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Excess of connected indoor units Defect of outdoor unit PC board (A1P) Mismatching of the refrigerant type of indoor and outdoor unit. Setting of outdoor PC board was not conducted after replacing to spare parts PC board.
Troubleshooting by Indication on the Remote Controller SiBE34-703 3.45 “UC ” Address Duplication of Central Remote Controller Remote Controller Display UC Applicable Models AII indoor unit models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Address duplication of centralized remote controller Defect of indoor unit PC board Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred.
SiBE34-703 Troubleshooting by Indication on the Remote Controller 3.46 “UE ” Malfunction of Transmission between Central Remote Controller and Indoor Unit Remote Controller Display UE Applicable Models AII indoor unit models Centralized controller Method of Malfunction Detection Microcomputer checks if transmission between indoor unit and centralized remote controller is normal.
Troubleshooting by Indication on the Remote Controller Troubleshooting Caution SiBE34-703 Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Has an indoor unit once connected been remove 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 malfunction? NO Turn indoor unit's power supply.
SiBE34-703 Troubleshooting by Indication on the Remote Controller 3.47 “UF” System is not Set yet Remote Controller Display UF Applicable Models All models of indoor units RXYSQ4~6P Method of Malfunction Detection On check operation, the number of indoor units in terms of transmission is not corresponding to that of indoor units that have made changes in temperature.
Troubleshooting by Indication on the Remote Controller SiBE34-703 3.
SiBE34-703 Troubleshooting by Indication on the Centralized Remote Controller 4. Troubleshooting by Indication on the Centralized Remote Controller 4.1 “UE ” Malfunction of Transmission between Centralized Remote Controller and Indoor Unit Remote Controller Display UE Applicable Models AII indoor unit models Centralized Remote Controller Method of Malfunction Detection Microcomputer checks if transmission between indoor unit and central remote controller is normal.
Troubleshooting by Indication on the Centralized Remote Controller 4.2 SiBE34-703 “M1 ” PC Board Defect Remote Controller Display M1 Applicable Models Centralized remote controller Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Defect of central remote controller PC board Troubleshooting Replace the central remote controller PC board.
SiBE34-703 4.
Troubleshooting by Indication on the Centralized Remote Controller 4.
SiBE34-703 Troubleshooting by Indication on the Centralized Remote Controller Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Is the wiring adaptor for electrical appendices connected? Cannot be used in combination with a wiring adaptor for electrical appendices. Remove the wiring adaptor for electrical appendices and reset the power supply for all optional controllers for centralized control simultaneously.
Troubleshooting by Indication on the Centralized Remote Controller 4.5 SiBE34-703 “MC ” Address Duplication, Improper Setting Remote Controller Display MC Applicable Models Centralized remote controller Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Address duplication of centralized remote controller Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred.
SiBE34-703 Troubleshooting by Indication on the Unified ON/OFF Controller 5. Troubleshooting by Indication on the Unified ON/ OFF Controller 5.
Troubleshooting by Indication on the Unified ON/OFF Controller SiBE34-703 Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Is a malfunction code displayed on the remote controller? YES Diagnose the cause with the air conditioner's failure diagnosis manual. NO Has a once connected indoor unit been removed or its address changed? YES Reset power supply for all optional controllers for centralized control simultaneously.
SiBE34-703 5.
Troubleshooting by Indication on the Unified ON/OFF Controller SiBE34-703 Troubleshooting Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Caution Has a once connected optional controller for centralized control been disconnected or itsaddress changed? YES Reset power supply simultaneously for all optional controllers for centralized control.
SiBE34-703 Troubleshooting by Indication on the Unified ON/OFF Controller 2A Is the wiring adaptor for electrical appendices connected? YES NO Is a schedule timer connected? YES Is a data station connected? NO YES NO Is a parallel interface connected? YES NO Is the schedule timer's individual/combined connector connected? NO Are there two or more optional controllers for centralized control connected with the connector for setting master control? YES NO Reset the power supply for all option
Troubleshooting by Indication on the Unified ON/OFF Controller 5.3 SiBE34-703 Display “Under Host Computer Integrate Control” Blinks (Repeats Double Blink) Remote Controller Display “under host computer integrated control” (Repeats double blink) Applicable Models Unified ON/OFF controller Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Central control address (group No.) is not set for indoor unit.
SiBE34-703 Troubleshooting by Indication on the Unified ON/OFF Controller [CHECK 1] Check for causes of rise in high pressure Referring to the Fault Tree Analysis (FTA) shown below, probe the faulty points. Local pressure rise [In cooling] If the outdoor unit electronic expansion valve is throttled: (See *1.) Rise in high pressure Faulty high pressure control High pipe resistance Stop valve closed ←Check to be sure the stop valve is open.
Troubleshooting by Indication on the Unified ON/OFF Controller SiBE34-703 [CHECK 2] Check for causes of drop in low pressure Referring to the Fault Tree Analysis (FTA) shown below, probe the faulty points. [In cooling] (See *1.) Faulty low pressure control Abnormally low low-pressure (Low evaporating temperature) [In both cooling and heating] (See *2.) [In cooling] If the indoor unit electronic expansion valve is throttled too much: (See *3.
SiBE34-703 Troubleshooting by Indication on the Unified ON/OFF Controller [CHECK 3] Check for Fan Motor Connector (1) Turn the power supply off. (2) With the fan motor connector on motor side disconnected, measure the resistance between each pin, then make sure that the resistance is more than the value mentioned in the following table.
Troubleshooting by Indication on the Unified ON/OFF Controller 196 SiBE34-703 Troubleshooting
SiBE34-703 Part 8 Appendix 1. Piping Diagrams..................................................................................198 1.1 Outdoor Unit .........................................................................................198 1.2 Indoor Unit............................................................................................199 2. Wiring Diagrams..................................................................................202 2.1 Outdoor Unit .....................................
Piping Diagrams SiBE34-703 1. Piping Diagrams 1.
SiBE34-703 1.2 Piping Diagrams Indoor Unit FXCQ, FXFQ, FXZQ, FXKQ, FXSQ, FXMQ, FXHQ, FXAQ, FXLQ, FXNQ Gas piping connection port Heat exchanger Flare connection : φ15.9 or less Attached piping : Above φ19.
Piping Diagrams SiBE34-703 FXDQ 4D043864H Refrigerant pipe connection port diameters Model FXDQ20 / 25 / 32 / 40 / 50 FXDQ63 200 Gas φ12.7 φ15.9 (mm) Liquid φ6.4 φ9.
SiBE34-703 Piping Diagrams FXUQ + BEVQ Indoor Unit 4D037995F Connection Unit 4D034127B Appendix 201
Wiring Diagrams SiBE34-703 2. Wiring Diagrams 2.
SiBE34-703 2.
Wiring Diagrams 2.
SiBE34-703 Wiring Diagrams FXCQ40 / 50 / 80 / 125M8V3 Appendix 205
Wiring Diagrams SiBE34-703 FXFQ25 / 32 / 40 / 50 / 63 / 80 / 100 / 125P7VE 206 Appendix
SiBE34-703 Wiring Diagrams FXZQ20 / 25 / 32 / 40 / 50M8V1 Appendix 207
Wiring Diagrams SiBE34-703 3D039564C FXKQ25MA / 32MA / 40MA / 63MAVE 208 Appendix
SiBE34-703 Wiring Diagrams 3D045500C FXDQ20P / 25P / 32P FXDQ20NA / 25NA / 32NA / 40NA / 50NA / 63NAVE (with Drain Pump) Appendix 209
Wiring Diagrams SiBE34-703 FXDQ20 / 25M8V3 210 Appendix
SiBE34-703 Wiring Diagrams FXSQ20 / 25 / 32 / 40 / 50 / 63 / 80 / 100 / 125M8V3 Appendix 211
Wiring Diagrams SiBE34-703 3D039620B FXMQ40MA / 50MA / 63MA / 80MA / 100MA / 125MAVE 212 Appendix
SiBE34-703 Wiring Diagrams 3D039801D FXHQ32MA / 63MA / 100MAVE Appendix 213
Wiring Diagrams SiBE34-703 3D034206C FXAQ20MA / 25MA / 32MAVE / 40MA / 50MA / 63MAVE 214 Appendix
SiBE34-703 Wiring Diagrams 3D039826D FXLQ20MA / 25MA / 32MA / 40MA / 50MA / 63MAVE FXNQ20MA / 25MA / 32MA / 40MA / 50MA / 63MAVE Appendix 215
Wiring Diagrams SiBE34-703 3D044973A FXUQ71MA / 100MA / 125MAV1 216 Appendix
SiBE34-703 Wiring Diagrams BEVQ71MA / 100MA / 125MAVE 3D044901B Appendix 217
Option List SiBE34-703 3. Option List 3.1 Option List of Controllers Operation Control System Optional Accessories No.
SiBE34-703 Option List Building management system 1 1-1 1-2 Part name intelligent Touch Controller No. basic 2 8 9-1 9-2 Contact/Analog signal 5 7 P.P.D. DCS002C51 • P.P.D.: Power Proportional Distribution function Web DCS004A51 • Monitors and controls the air conditioning system using the Internet and Web browser application on a PC. 13 KJB411A 128 units DAM602B52 256 units DAM602B51 512 units DAM602B51x2 768 units DAM602B51x3 • Wall embedded switch box.
Option List 3.2 SiBE34-703 Option List of Outdoor Unit RXYSQ4 / 5 / 6P Optional accessories Cool/Heat Selector Distributive Piping Fixing box Refnet header Refnet joint RXYSQ4P7Y1B RXYSQ5P7Y1B RXYSQ6P7Y1B KRC19-26A KJB111A KHRP26M22H, KHRP26M33H (MAX. 4 branch) (MAX.
SiBE34-703 Example of Connection 4.
Example of Connection 222 SiBE34-703 Appendix
SiBE34-703 Thermistor Resistance / Temperature Characteristics 5. Thermistor Resistance / Temperature Characteristics Indoor unit Outdoor unit for fin thermistor Appendix R1T TºC -10 -8 -6 -4 -2 0.0 88.0 79.1 71.1 0 2 4 6 8 64.1 57.8 52.3 47.3 42.9 10 12 14 16 18 38.9 35.3 32.1 29.2 26.6 20 22 24 26 28 24.3 22.2 20.3 18.5 17.0 30 32 34 36 38 15.6 14.2 13.1 12.0 11.1 40 42 44 46 48 10.3 9.5 8.8 8.2 7.6 50 52 54 56 58 7.0 6.7 6.0 5.5 5.2 60 62 64 66 68 4.79 4.46 4.15 3.87 3.
Thermistor Resistance / Temperature Characteristics SiBE34-703 Outdoor Unit Thermistors for Discharge Pipe (R2T) T°C 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 224 0.0 640.44 609.31 579.96 552.00 525.63 500.66 477.01 454.60 433.37 413.24 394.16 376.05 358.88 342.58 327.10 312.41 298.45 285.18 272.58 260.60 249.00 238.36 228.05 218.24 208.90 200.00 191.53 183.46 175.77 168.44 161.45 154.79 148.43 142.
SiBE34-703 Pressure Sensor 6. Pressure Sensor Detected Pressure PH = 1.38V-0.69 PL = 0.57V-0.
Method of Replacing the Inverter’s Power Transistors Modules SiBE34-703 7. Method of Replacing the Inverter’s Power Transistors Modules Checking failures in power semiconductors mounted on inverter PC board Check the power semiconductors mounted on the inverter PC board by the use of a multiple tester. 1 Multiple tester : Prepare the digital type of multiple tester with diode check function. 1 Turn OFF the power supply.
SiBE34-703 Method of Replacing the Inverter’s Power Transistors Modules Power module checking When using the digital type of multiple tester, make measurement in diode check mode. Tester terminal + - C+ U V Criterion Remark Not less than 0.3V (including ∞)* It may take time to determine the voltage due to capacitor charge or else. W U C- Not less than 0.3V (including ∞)* C+ 0.3 to 0.7V (including ∞)* U 0.3 to 0.
Method of Replacing the Inverter’s Power Transistors Modules 228 SiBE34-703 Appendix
SiBE34-703 Part 9 Precautions for New Refrigerant (R-410A) 1. Precautions for New Refrigerant (R-410A) .........................................230 1.1 Outline ..................................................................................................230 1.2 Refrigerant Cylinders............................................................................232 1.3 Service Tools........................................................................................
Precautions for New Refrigerant (R-410A) SiBE34-703 1. Precautions for New Refrigerant (R-410A) 1.1 Outline 1.1.1 About Refrigerant R-410A Characteristics of new refrigerant, R-410A 1. Performance Almost the same performance as R-22 and R-407C 2. Pressure Working pressure is approx. 1.4 times more than R-22 and R-407C. 3. Refrigerant composition Few problems in composition control, since it is a Quasi-azeotropic mixture refrigerant.
SiBE34-703 Precautions for New Refrigerant (R-410A) Thermodynamic characteristic of R-410A Temperature ( ) Steam pressure (kPa) Liquid Vapor Precautions for New Refrigerant (R-410A) Density (kg/m3 ) Liquid Vapor Specific heat at constant pressure (kJ/kgK) Liquid Vapor Specific enthalpy (kJ/kg) Liquid Vapor Specific entropy (kJ/KgK) Liquid Vapor 231
Precautions for New Refrigerant (R-410A) 1.2 SiBE34-703 Refrigerant Cylinders Cylinder specifications 2 The cylinder is painted refrigerant color (pink). 2 The cylinder valve is equipped with a siphon tube. Siphon tube Cylinder Refrigerant can be charged in liquid state with cylinder in upright position. Caution: Do not lay cylinder on its side during charging, since it cause refrigerant in gas state to enter the system.
SiBE34-703 1.3 Precautions for New Refrigerant (R-410A) Service Tools R-410A is used under higher working pressure, compared to previous refrigerants (R-22,R-407C). Furthermore, the refrigerating machine oil has been changed from Suniso oil to Ether oil, and if oil mixing is occurred, sludge results in the refrigerants and causes other problems. Therefore, gauge manifolds and charge hoses that are used with a previous refrigerant (R-22,R-407C) can not be used for products that use new refrigerants.
Precautions for New Refrigerant (R-410A) SiBE34-703 1. Flaring tool Flare gauge Specifications 2 Dimension A Unit:mm Nominal size A +0−0.4 Tube O.D. Do Class-2 (R-410A) Class-1 (Conventional) 1/4 6.35 9.1 9.0 3/8 9.52 13.2 13.0 1/2 12.70 16.6 16.2 5/8 15.88 19.7 19.4 3/4 19.05 24.0 23.3 Differences 2 Change of dimension A Dimension A For class-1: R-407C For class-2: R-410A Conventional flaring tools can be used when the work process is changed.
SiBE34-703 Precautions for New Refrigerant (R-410A) 2. Torque wrench Specifications 2 Dimension B Nominal size 1/2 5/8 Unit:mm Class-1 24 27 Class-2 26 29 Previous 24 27 No change in tightening torque No change in pipes of other sizes Differences 2 Change of dimension B Only 1/2", 5/8" are extended For class-1: R-407C For class-2: R-410A Dimension B 3.
Precautions for New Refrigerant (R-410A) SiBE34-703 4. Leak tester Specifications 2 Hydrogen detecting type, etc. 2 Applicable refrigerants R-410A, R-407C, R-404A, R-507A, R-134a, etc. Differences 2 Previous testers detected chlorine. Since HFCs do not contain chlorine, new tester detects hydrogen. 5. Refrigerant oil (Air compal) Specifications 2 Contains synthetic oil, therefore it can be used for piping work of every refrigerant cycle.
SiBE34-703 Precautions for New Refrigerant (R-410A) 2 Temperature scale indicates the relationship between pressure and temperature in gas saturated state. Differences 2 Change in pressure 2 Change in service port diameter 7. Charge hose for R-410A (Hose with ball valve) Specifications 2 Working pressure 5.08 MPa (51.8 kg/cm2) 2 Rupture pressure 25.4 MPa (259 kg/cm2) 2 Available with and without hand-operate valve that prevents refrigerant from outflow.
Precautions for New Refrigerant (R-410A) SiBE34-703 9. Weigher for refrigerant charge Specifications 2 High accuracy TA101A (for 10-kg cylinder) = ± 2g TA101B (for 20-kg cylinder) = ± 5g 2 Equipped with pressure-resistant sight glass to check liquid refrigerant charging. 2 A manifold with separate ports for HFCs and previous refrigerants is equipped as standard accessories. Differences 2 Measurement is based on weight to prevent change of mixing ratio during charging. 10.
SiBE34-703 Part 10 Removal Procedure 1. RXYSQ4 · 5 · 6 P7Y1B .......................................................................240 1.1 Procedure to Remove Outside Panels .................................................240 1.2 Procedure to Remove Propeller Fan and Fan Motor ...........................243 1.3 Procedure to Remove Compressor......................................................
RXYSQ4 · 5 · 6 P7Y1B SiBE34-703 1. RXYSQ4 · 5 · 6 P7Y1B 1.1 Procedure to Remove Outside Panels Procedure Remove one screw of the front panel (2), and then remove the panel after pushing it downward to release the hook. 3 To remove the front panel for piping cover, remove its one screw. 4 To remove the side panel for piping cover, remove four screws of the side panel. Points It is possible to remove only Remove eight screws of the top panel.
SiBE34-703 Procedure Step 6 RXYSQ4 · 5 · 6 P7Y1B Remove the discharge grill after removing its four screws and releasing its four hooks. Front panel (1) Points Hook Discharge grill On the rear side of the front panel (1), a reinforce plate is attached. Be careful not to lose it while removing the front panel (1). 7 Remove the front panel (1) after removing its seven screws and pushing it upward.
RXYSQ4 · 5 · 6 P7Y1B SiBE34-703 Procedure Step 8 Removing heat exchanger cover Remove the heat exchanger cover after releasing its three hooks with a minus driver. 9 Remove the ambient air temperature thermistor after pulling it to the near side and sliding to the right. Points Ambient air temperature thermistor (RIT) 10 The figure in the right is of rear side view.
SiBE34-703 1.2 RXYSQ4 · 5 · 6 P7Y1B Procedure to Remove Propeller Fan and Fan Motor Procedure Warning Be sure to commence the disassembling work after 10 minutes or more elapsed from all power supplies have been turned off. Procedure Step Front panel (1) Points Preliminary preparation Remove the discharge grill, front panel and front panel for piping cover, according to the "Procedure to Remove Outside Panels". Discharge grill 1 Remove the nuts with a washer, which fixing the propeller fan.
RXYSQ4 · 5 · 6 P7Y1B SiBE34-703 Procedure Step Points Lead wire for fan motor 2 3 Earth wire Remove the clamp material. Pull off the connector while supporting its body and pushing the engaging click, without pulling its lead wires. Caution on mounting the motor If the motor lead wires are not fixed by using the clamp material, it may always damage the lead wire because the lead wires twined around the fan. Remove the four fixing screws for fan motor and then remove the fan motor.
SiBE34-703 1.3 RXYSQ4 · 5 · 6 P7Y1B Procedure to Remove Compressor Procedure Warning Be sure to commence the disassembling work after 10 minutes or more elapsed from all power supplies have been turned off. Procedure Step Points Remove the outside panels, electrical component, and compressor fixing panel, according to the "Procedure to Remove Outside Panels" Sound insulation for the terminal cover 1. Pull off the lead wire of compressor.
RXYSQ4 · 5 · 6 P7Y1B SiBE34-703 Procedure Step 4 Remove the sound insulation for the compressor. 5 Remove the crankcase heater under the compressor. Points Pull the spring to trip the catch. 6 246 Remove the three fixing bolts of the compressor. You can see the far side fixing bolts when the bottom discharge grill is removed. Remove the bolt (s) in view first.
SiBE34-703 Step RXYSQ4 · 5 · 6 P7Y1B Procedure Points Make sure that there is no refrigerant gas left within the refrigerant circuit system before performing the operation 7 Cut off the suction pipe, discharge pipe and unloader pipe of compressor with a pipe cutter (three places). The cutting part is in the compressor side relative to the brazing part.
RXYSQ4 · 5 · 6 P7Y1B 248 SiBE34-703 Removal Procedure
SiBE34-703 Index A A0 .........................................................................122 A1 .........................................................................123 A3 .........................................................................124 A6 .........................................................................126 A7 .........................................................................127 A9 .........................................................................
SiBE34-703 Malfunction of Capacity Determination Device ....................................132 Malfunction of Discharge Pipe Thermistor (R2T) .............................................................150 Malfunction of Drain Level Control System (S1L) .............................................................124 Malfunction of High Pressure Sensor ...................155 Malfunction of Inverter Radiating Fin Temperature Rise ...............................................................
SiBE34-703 Drawings & Flow Charts A Abnormal Discharge Pipe Temperature ...............147 Actuation of High Pressure Switch .......................139 Actuation of Low Pressure Sensor .......................141 Address Duplication of Central Remote Controller .........................................176 Address Duplication, Improper Setting .................186 C Centralized Control Group No. Setting ...................80 BRC1C Type ...................................................80 BRC4C Type .......
SiBE34-703 Malfunction of Transmission between Central Remote Controller and Indoor Unit .............................177 Malfunction of Transmission between Centralized Remote Controller and Indoor Unit ...............181 Malfunction of Transmission between Indoor and Outdoor Units in the Same System ...............173 Malfunction of Transmission between Indoor Units and Outdoor Units .........................................169 Malfunction of Transmission between Inverter and Control PC Board ...........
Warning Daikin Industries, Ltd.’s products are manufactured for export to numerous countries throughout the world. Daikin Industries, Ltd. does not have control over which products are exported to and used in a particular country. Prior to purchase, please therefore confirm with your local authorised 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.
