Si38 - 606 R-22 Single Outdoor Unit Series Cooling Only
Si38-606 R-22 Cooling Only R-22 Cooling Only ........................................................................ i 1. Introduction .............................................................................................v 1.1 Safety Cautions ........................................................................................v 1.2 PREFACE ............................................................................................... ix Part 1 General Information ..............................
Si38-606 4.5 STD Compressor Overload Protection...................................................59 4.6 Crankcase Heater Control......................................................................59 5. Other Control.........................................................................................60 5.1 Emergency Operation ............................................................................60 5.2 Demand Operation ............................................................................
Si38-606 2.17 “E6” Standard Compressor Motor Overcurrent/Lock.............................137 2.18 “E7” Malfunction of Outdoor Unit Fan Motor..........................................138 2.19 “E9” Outdoor Unit: Malfunction of Moving Part of Electronic Expansion Valve (Y1E, Y2E) .................................................................................140 2.20 “F3” Outdoor Unit: Abnormal Discharge Pipe Temperature ..................142 2.21 “F6” Refrigerant Overcharged ...............................
Si38-606 3.3 “MA” Improper Combination of Optional Controllers for Centralized Control...............................................................................183 3.4 “MC” Address Duplication, Improper Setting ..........................................185 4. Troubleshooting (OP: Schedule Timer)...............................................186 4.1 “UE” Malfunction of Transmission between Central Remote Controller and Indoor Unit........................................................................
Si38-606 Introduction 1. Introduction 1.1 Safety Cautions Cautions and Warnings Be sure to read the following safety cautions before conducting repair work. Warning” and “ Caution”. The “ The caution items are classified into “ Warning” items are especially important since they can lead to death or serious injury if they are not followed closely. The “ Caution” items can also lead to serious accidents under some conditions if they are not followed.
Introduction Si38-606 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.
Si38-606 Introduction Warning Be sure to use the specified cable to connect between the indoor and outdoor units. Make the connections securely and route the cable properly so that there is no force pulling the cable at the connection terminals. Improper connections can cause excessive heat generation or fire. When connecting the cable between the indoor and outdoor units, make sure that the terminal cover does not lift off or dismount because of the cable.
Introduction Si38-606 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.
Si38-606 1.2 Introduction PREFACE Thank you for your continued patronage of Daikin products. This is the new service manual for Daikin's Year 2006 VRVII Single Outdoor Units series Cooling Only 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.
Introduction x Si38-606
Si38-606 Part 1 General Information 1. Model Names of Indoor/Outdoor Units....................................................2 2. External Appearance...............................................................................3 2.1 Indoor Units ..............................................................................................3 2.2 Outdoor Units ...........................................................................................4 3. Capacity Range......................................
Model Names of Indoor/Outdoor Units Si38-606 1.
Si38-606 External Appearance 2. External Appearance 2.
External Appearance 2.
Si38-606 Capacity Range 3. Capacity Range Outdoor Units Capacity Range 8HP 10HP RXM 8M 10M No of Indoor Units to be Connected 13 16 Total Capacity Index of Indoor Units to be Connected 100 ~ 260 125 ~ 325 Indoor Units Capacity Range 0.8 HP 1 HP 1.25 HP 1.6 HP 2 HP 2.5 HP 3.2 HP 4 HP 5 HP 8 HP 10 HP Capacity Index 20 25 31.25 40 50 62.
Capacity Range 6 Si38-606 General Information
Si38-606 Part 2 Specifications 1. Specifications ..........................................................................................8 1.1 Outdoor Units ...........................................................................................8 1.2 Indoor Units ..............................................................................................
Specifications Si38-606 1. Specifications 1.1 Outdoor Units Model Name RXM8MY1 RXM10MY1 kcal / h 19,400 24,300 ★1 Cooling Capacity (19.5°CWB) Btu / h 76,800 96,200 ★2 Cooling Capacity (19.0°CWB) kW kW 22.5 22.4 28.2 28.0 Casing Color Dimensions: (H×W×D) mm Ivory White (5Y7.5/1) 1600×930×765 Ivory White (5Y7.5/1) 1600×1240×765 Heat Exchanger Type Comp. m³/h r.p.m 19.36+14.68 6480, 2900 19.36+14.68 6480, 2900 Motor Output×Number of Units kW (1.1+4.5)×1 (2.1+4.
Si38-606 1.2 Specifications Indoor Units Ceiling Mounted Cassette Type (Double-flow) Model ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.0°CWB) ★3 Heating Capacity Casing Dimensions: (H×W×D) Coil (Cross Fin Coil) FXC20LVE FXC25LVE FXC32LVE kcal/h 2,000 2,500 3,200 4,000 Btu/h 7,800 9,900 12,600 16,000 kW 2.3 2.9 3.7 4.7 kW 2.2 2.8 3.6 4.5 kcal/h 2,200 2,800 3,400 4,300 Btu/h 8,500 10,900 13,600 17,000 kW 2.5 3.2 4.0 5.
Specifications Si38-606 Ceiling Mounted Cassette Type (Double-flow) Model ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.0°CWB) ★3 Heating Capacity Casing Dimensions: (H×W×D) Coil (Cross Fin Coil) FXC50LVE FXC63LVE FXC80LVE FXC125LVE kcal/h 5,000 6,300 8,000 12,500 Btu/h 19,800 24,900 31,700 49,500 kW 5.8 7.3 9.3 14.5 kW 5.6 7.1 9.0 14.0 kcal/h 5,400 6,900 8,600 13,800 Btu/h 21,500 27,300 34,100 54,600 kW 6.3 8.0 10.0 16.
Si38-606 Specifications Ceiling Mounted Cassette Type (Multi-flow) Model ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.0°CWB) ★3 Heating Capacity Casing Dimensions: (H×W×D) Coil (Cross Fin Coil) FXF25LVE FXF32LVE FXF40LVE kcal/h 2,500 3,200 4,000 5,000 Btu/h 9,900 12,600 16,000 19,800 kW 2.9 3.7 4.7 5.8 kW 2.8 3.6 4.5 5.6 kcal/h 2,800 3,400 4,300 5,400 Btu/h 10,900 13,600 17,000 21,500 kW 3.2 4.0 5.0 6.
Specifications Si38-606 Ceiling Mounted Cassette Type (Multi-flow) Model ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.0°CWB) ★3 Heating Capacity Casing Dimensions: (H×W×D) Coil (Cross Fin Coil) FXF63LVE FXF80LVE FXF100LVE FXF125LVE kcal/h 6,300 8,000 10,000 12,500 Btu/h 24,900 31,700 39,600 49,500 kW 7.3 9.3 11.6 14.5 kW 7.1 9.0 11.2 14.0 kcal/h 6,900 8,600 10,800 13,800 Btu/h 27,300 34,100 42,700 54,600 kW 8.0 10.0 12.5 16.
Si38-606 Specifications Ceiling Mounted Cassette Corner Type Model ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.0°CWB) ★3 Heating Capacity Casing Dimensions: (H×W×D) Coil (Cross Fin Coil) FXK25LVE FXK32LVE FXK40LVE kcal/h 2,500 3,200 4,000 FXK63LVE 6,300 Btu/h 9,900 12,600 16,000 24,900 kW 2.9 3.7 4.7 7.3 kW 2.8 3.6 4.5 7.1 kcal/h 2,800 3,400 4,300 6,900 Btu/h 10,900 13,600 17,000 27,300 kW 3.2 4.0 5.0 8.
Specifications Si38-606 Slim Ceiling Mounted Duct Type Model ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.0°CWB) ★3 Heating Capacity Casing Dimensions: (H×W×D) Coil (Cross Fin Coil) FXD20PVE(T) FXD25PVE(T) kcal/h 2,000 2,500 3,200 Btu/h 7,800 9,900 12,600 kW 2.3 2.9 3.7 kW 2.2 2.8 3.6 kcal/h 2,200 2,800 3,400 Btu/h 8,500 10,900 13,600 kW 2.5 3.2 4.
Si38-606 Specifications Slim Ceiling Mounted Duct Type (with Drain Pump) Model ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.0°CWB) ★3 Heating Capacity Casing Dimensions: (H×W×D) Coil (Cross Fin Coil) FXD20MVE FXD25MVE kcal/h 2,000 2,500 3,200 Btu/h 7,800 9,900 12,600 kW 2.3 2.9 3.7 kW 2.2 2.8 3.6 kcal/h 2,200 2,800 3,400 Btu/h 8,500 10,900 13,600 kW 2.5 3.2 4.
Specifications Si38-606 Slim Ceiling Mounted Duct Type (with Drain Pump) Model ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.0°CWB) ★3 Heating Capacity Casing Color Dimensions: (H×W×D) Coil (Cross Fin Coil) FXD40MVE FXD50MVE kcal/h 4,000 5,000 6,300 Btu/h 16,000 19,800 24,900 kW 4.7 5.8 7.3 kW 4.5 5.6 7.1 kcal/h 4,300 5,400 6,900 Btu/h 17,000 21,500 27,300 kW 5.0 6.3 8.
Si38-606 Specifications Slim Ceiling Mounted Duct Type (without Drain Pump) Model ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.0°CWB) ★3 Heating Capacity Casing Dimensions: (H×W×D) Coil (Cross Fin Coil) FXD20MVET FXD25MVET kcal/h 2,000 2,500 3,200 Btu/h 7,800 9,900 12,600 kW 2.3 2.9 3.7 kW 2.2 2.8 3.6 kcal/h 2,200 2,800 3,400 Btu/h 8,500 10,900 13,600 kW 2.5 3.2 4.
Specifications Si38-606 Slim Ceiling Mounted Duct Type (without Drain Pump) Model ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.0°CWB) ★3 Heating Capacity Casing Color Dimensions: (H×W×D) Coil (Cross Fin Coil) FXD40MVET FXD50MVET kcal/h 4,000 5,000 6,300 Btu/h 16,000 19,800 24,900 kW 4.7 5.8 7.3 kW 4.5 5.6 7.1 kcal/h 4,300 5,400 6,900 Btu/h 17,000 21,500 27,300 kW 5.0 6.3 8.
Si38-606 Specifications Ceiling Mounted Low Silhouette Duct Type ★6 Model ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.0°CWB) ★3 Heating Capacity Casing Dimensions: (H×W×D) Coil (Cross Fin Coil) FXYD25KAVE 2,000 2,500 FXYD32KAVE 3,200 Btu/h 7,900 9,900 12,600 kW 2.3 2.9 3.7 kW 2.2 2.8 3.6 kcal/h 2,200 2,800 3,400 Btu/h 8,500 10,900 13,600 kW 2.5 3.2 4.0 Galvanized Steel Plate 260×900×580 Galvanized Steel Plate 260×900×580 2×10×1.
Specifications Si38-606 Ceiling Mounted Low Silhouette Duct Type ★6 Model ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.0°CWB) ★3 Heating Capacity Casing Dimensions: (H×W×D) Coil (Cross Fin Coil) FXYD50KAVE 4,000 5,000 FXYD63KAVE 6,300 Btu/h 16,000 19,800 24,900 kW 4.7 5.8 7.3 kW 4.5 5.6 7.1 kcal/h 4,300 5,400 6,900 Btu/h 17,000 21,500 27,300 kW 5.0 6.3 8.0 Galvanized Steel Plate 260×1,300×580 Galvanized Steel Plate 260×1,300×580 3×10×1.
Si38-606 Specifications Ceiling Mounted Built-in Type Model ★1 Cooling Capacity (19.5°CWB) FXS20LVE FXS25LVE kcal/h 2,000 2,500 3,200 Btu/h 7,800 9,900 12,600 kW 2.3 2.9 3.7 kW 2.2 2.8 3.6 kcal/h 2,200 2,800 3,400 Btu/h 8,500 10,900 13,600 kW 2.5 3.2 4.0 Galvanized Steel Plate 300×550×800 Galvanized Steel Plate 300×550×800 3×14×1.75 ★2 Cooling Capacity (19.
Specifications Si38-606 Ceiling Mounted Built-in Type Model ★1 Cooling Capacity (19.5°CWB) FXS40LVE FXS50LVE kcal/h 4,000 5,000 6,300 Btu/h 16,000 19,800 24,900 kW 4.7 5.8 7.3 kW 4.5 5.6 7.1 kcal/h 4,300 5,400 6,900 Btu/h 17,000 21,500 27,300 kW 5.0 6.3 8.0 Galvanized Steel Plate 300×700×800 Galvanized Steel Plate 300×1,000×800 3×14×1.75 ★2 Cooling Capacity (19.
Si38-606 Specifications Ceiling Mounted Built-in Type Model ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.0°CWB) ★3 Heating Capacity Casing Dimensions: (H×W×D) Coil (Cross Fin Coil) FXS80LVE FXS100LVE FXS125LVE kcal/h 8,000 10,000 12,500 Btu/h 31,700 39,600 49,500 kW 9.3 11.6 14.5 kW 9.0 11.2 14.0 kcal/h 8,600 10,800 13,800 Btu/h 34,100 42,700 54,600 kW 10.0 12.5 16.0 Galvanized Steel Plate 300×1,400×800 Galvanized Steel Plate 300×1,400×800 3×14×1.
Specifications Si38-606 Ceiling Mounted Built-in (Rear Suction Type) Model ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.0°CWB) ★3 Heating Capacity Casing Dimensions: (H×W×D) Coil (Cross Fin Coil) FXYB20KV1 FXYB25KV1 kcal/h 2,000 2,500 3,200 Btu/h 7,800 9,900 12,600 kW 2.3 2.9 3.7 kW 2.2 2.8 3.6 kcal/h 2,200 2,800 3,400 Btu/h 8,500 10,900 13,600 kW 2.5 3.2 4.0 Galvanized Steel Plate 300×550×800 Galvanized Steel Plate 300×550×800 3×14×1.
Si38-606 Specifications Ceiling Mounted Built-in (Rear Suction Type) Model ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.0°CWB) ★3 Heating Capacity Casing Dimensions: (H×W×D) Coil (Cross Fin Coil) FXYB40KV1 FXYB50KV1 kcal/h 4,000 5,000 6,300 Btu/h 16,000 19,800 24,900 kW 4.7 5.8 7.3 kW 4.5 5.6 7.1 kcal/h 4,300 5,400 6,900 Btu/h 17,000 21,500 27,300 kW 5.0 6.3 8.0 Galvanized Steel Plate 300×700×800 Galvanized Steel Plate 300×1,000×800 3×14×1.
Specifications Si38-606 Ceiling Mounted Built-in (Rear Suction Type) Model ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.5°CWB) ★3 Heating Capacity Casing Dimensions: (H×W×D) Coil (Cross Fin Coil) FXYB80KV1 FXYB100KV1 FXYB125KV1 kcal/h 8,000 10,000 12,500 Btu/h 31,700 39,600 49,500 kW 9.3 11.6 14.5 kW 9.0 11.2 14.0 kcal/h 8,600 10,800 13,800 Btu/h 34,100 42,700 54,600 kW 10.0 12.5 16.
Si38-606 Specifications Ceiling Mounted Duct Type Model ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.0°CWB) ★3 Heating Capacity Casing Dimensions: (H×W×D) Coil (Cross Fin Coil) FXM40LVE FXM50LVE FXM63LVE kcal/h 4,000 5,000 6,300 8,000 Btu/h 16,000 19,800 24,900 31,700 kW 4.7 5.8 7.3 9.3 kW 4.5 5.6 7.1 9.0 kcal/h 4,300 5,400 6,900 8,600 Btu/h 17,000 21,500 27,300 34,100 kW 5.0 6.3 8.0 10.
Specifications Si38-606 Ceiling Mounted Duct Type Model ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.0°CWB) ★3 Heating Capacity Casing Dimensions: (H×W×D) Coil (Cross Fin Coil) FXM100LVE FXM125LVE FXM200LVE FXM250LVE kcal/h 10,000 12,500 19,800 24,800 Btu/h 39,600 49,500 78,500 98,300 kW 11.6 14.5 23.0 28.8 kW 11.2 14.0 22.4 28.0 kcal/h 10,800 13,800 21,500 27,000 Btu/h 42,700 54,600 85,300 107,500 kW 12.5 16.0 25.0 31.
Si38-606 Specifications Ceiling Suspended Type Model ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.0°CWB) ★3 Heating Capacity Casing Color Dimensions: (H×W×D) Coil (Cross Fin Coil) FXH32LVE FXH63LVE FXH100LVE kcal/h 3,200 6,300 10,000 Btu/h 12,600 24,900 39,600 kW 3.7 7.3 11.6 kW 3.6 7.1 11.2 kcal/h 3,400 6,900 10,800 Btu/h 13,600 27,300 42,700 kW 4.0 8.0 12.5 White (10Y9/0.5) 195×1,160×680 White (10Y9/0.5) 195×1,400×680 3×12×1.75 mm White (10Y9/0.
Specifications Si38-606 Wall Mounted Type Model ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.0°CWB) ★3 Heating Capacity Casing Color Dimensions: (H×W×D) Coil (Cross Fin Coil) FXA20LVE FXA25LVE kcal/h 2,000 2,500 3,200 Btu/h 7,800 9,900 12,600 kW 2.3 2.9 3.7 kW 2.2 2.8 3.6 kcal/h 2,200 2,800 3,400 Btu/h 8,500 10,900 13,600 kW 2.5 3.2 4.0 White (3.0Y8.5/0.5) 290×795×230 White (3.0Y8.5/0.5) 290×795×230 mm White (3.0Y8.5/0.
Si38-606 Specifications Wall Mounted Type Model ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.0°CWB) ★3 Heating Capacity Casing Color Dimensions: (H×W×D) Coil (Cross Fin Coil) FXA40LVE FXA50LVE kcal/h 4,000 5,000 6,300 Btu/h 16,000 19,800 24,900 kW 4.7 5.8 7.3 kW 4.5 5.6 7.1 kcal/h 4,300 5,400 6,900 Btu/h 17,000 21,500 27,300 kW 5.0 6.3 8.0 White (3.0Y8.5/0.5) 290×1,050×230 White (3.0Y8.5/0.5) 290×1,050×230 mm White (3.0Y8.5/0.
Specifications Si38-606 Floor Standing Type Model ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.0°CWB) ★3 Heating Capacity Casing Color Dimensions: (H×W×D) Coil (Cross Fin Coil) FXL20LVE FXL25LVE kcal/h 2,000 2,500 3,200 Btu/h 7,800 9,900 12,600 kW 2.3 2.9 3.7 kW 2.2 2.8 3.6 kcal/h 2,200 2,800 3,400 Btu/h 8,500 10,900 13,600 kW 2.5 3.2 4.0 Ivory White (5Y7.5/1) 600×1,000×222 Ivory White (5Y7.5/1) 600×1,140×222 3×14×1.5 mm Ivory White (5Y7.
Si38-606 Specifications Floor Standing Type Model ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.0°CWB) ★3 Heating Capacity Casing Color Dimensions: (H×W×D) Coil (Cross Fin Coil) FXL40LVE FXL50LVE kcal/h 4,000 5,000 6,300 Btu/h 16,000 19,800 24,900 kW 4.7 5.8 7.3 kW 4.5 5.6 7.1 kcal/h 4,300 5,400 6,900 Btu/h 17,000 21,500 27,300 kW 5.0 6.3 8.0 Ivory White (5Y7.5/1) 600×1,420×222 Ivory White (5Y7.5/1) 600×1,420×222 3×14×1.5 mm Ivory White (5Y7.
Specifications Si38-606 Concealed Floor Standing Type Model ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.0°CWB) ★3 Heating Capacity Casing Color Dimensions: (H×W×D) Coil (Cross Fin Coil) FXN20LVE FXN25LVE kcal/h 2,000 2,500 3,200 Btu/h 7,800 9,900 12,600 kW 2.3 2.9 3.7 kW 2.2 2.8 3.6 kcal/h 2,200 2,800 3,400 Btu/h 8,500 10,900 13,600 kW 2.5 3.2 4.0 Galvanized Steel Plate 610×930×220 Galvanized Steel Plate 610×1,070×220 3×14×1.
Si38-606 Specifications Concealed Floor Standing Type Model ★1 Cooling Capacity (19.5°CWB) ★2 Cooling Capacity (19.0°CWB) ★3 Heating Capacity Casing Color Dimensions: (H×W×D) Coil (Cross Fin Coil) FXN40LVE FXN50LVE kcal/h 4,000 5,000 6,300 Btu/h 16,000 19,800 24,900 kW 4.7 5.8 7.3 kW 4.5 5.6 7.1 kcal/h 4,300 5,400 6,900 Btu/h 17,000 21,500 27,300 kW 5.0 6.3 8.0 Galvanized Steel Plate 610×1,350×220 Galvanized Steel Plate 610×1,350×220 3×14×1.
Specifications 36 Si38-606 Specifications
Si38-606 Part 3 Refrigerant Circuit 1. Refrigerant Circuit .................................................................................38 1.1 RXM8, 10M ............................................................................................38 2. Functional Parts Layout ........................................................................40 2.1 RXM8, 10M ............................................................................................
Refrigerant Circuit Si38-606 1. Refrigerant Circuit 1.1 RXM8, 10M No. in refrigerant Symbol system diagram 38 Name Major Function A M1C Inverter compressor (INV) Inverter compressor is operated on frequencies between 52 Hz and 210 Hz by using the inverter, while Standard compressor is operated with commercial power supply only. The number of operating steps is as follows when Inverter compressor is operated in combination with Standard compressor.
Si38-606 Refrigerant Circuit RXM8, 10M J S U L D E F I G K T N V Q P B A O H C: 4D041809A Refirgerant Circuit 39
Functional Parts Layout Si38-606 2. Functional Parts Layout 2.
Si38-606 Functional Parts Layout RXM8, 10M Cooling Operation Indoor unit operation Fan ON Fan ON Fan OFF " ON " Heat exchanger " OFF " Heat exchanger " ON " Heat exchanger High temperature, high pressure gas High temperature, high pressure liquid Low temperature, low pressure Fan Fan Electronic expansion valve Electronic expansion valve Filter Filter Indoor unit Filter Filter Indoor unit Thermostat "ON" Fan Electronic expansion valve Filter Filter Indoor unit Thermostat "OFF" T S Oil equ
Functional Parts Layout Si38-606 Cooling Oil Return Operation Indoor unit operation Fan ON Fan OFF " ON " " OFF " Fan OFF " ON " Heat exchanger Heat exchanger Heat exchanger Fan Fan Fan High temperature, high pressure gas High temperature, high pressure liquid Low temperature, low pressure EXV : 200 pls EXV : Normal control Filter Filter Indoor unit Filter Filter Indoor unit Thermostat "ON" EXV : 200 pls Filter Filter Indoor unit Thermostat "OFF" T S Oil equalizing pipe to other outdoo
Si38-606 Part 4 Function 1. Operation Mode ....................................................................................44 2. Basic Control.........................................................................................45 2.1 2.2 2.3 2.4 Normal Operation ...................................................................................45 Compressor PI Control...........................................................................46 Electronic Expansion Valve PI Control.................
Operation Mode Si38-606 1.
Si38-606 Basic Control 2. Basic Control 2.
Basic Control 2.2 Si38-606 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).
Si38-606 2.3 Basic Control Electronic Expansion Valve PI Control Main Motorized Valve EV1 Control Carries out the motorized 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 Si38-606 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. Pc: HP pressure sensor detection value STEP9 Pc>2.01MPa Pc<1.72MPa Pc>2.15MPa STEP8 Pc<1.18MPa Pc>1.81MPa Fan Steps STEP7 Pc<1.18MPa Pc>1.81MPa STEP6 Pc<1.18MPa Pc>1.
Si38-606 Special Control 3. Special Control 3.1 Startup Control 3.1.
Special Control 3.2 Si38-606 Oil Return Operation 3.2.
Si38-606 3.3 Special Control Pump-down Residual Operation 3.3.
Special Control 3.4 Si38-606 Restart Standby Actuator Operation Compressor OFF Outdoor unit fan Ta>30°C: STEP5 Ta≤30°C: OFF Main motorized valve (EV1) 0 pls Subcooling motorized valve (EV2) 0 pls Hot gas bypass valve (SVP) OFF Oil equalization valve (SVO) ON Receiver gas charging valve (SVL) OFF Receiver gas discharging valve (SVG) OFF Non-operating unit gas discharging valve (SVSG) OFF Non-operating unit liquid pipe stop valve (SVSL) ON Ending conditions 5 min.
Si38-606 3.5 Special Control Stopping Operation 3.5.
Special Control 3.6 Si38-606 Pressure Equalization prior to Startup Actuator Operation Compressor OFF Outdoor unit fan OFF Main motorized valve (EV1) 0 pls Subcooling motorized valve (EV2) 0 pls Hot gas bypass valve (SVP) OFF Oil equalization valve (SVO) OFF Receiver gas charging valve (SVL) OFF Receiver gas discharging valve (SVG) OFF Non-operating unit gas discharging valve (SVSG) OFF Non-operating unit liquid pipe stop valve (SVSL) ON Ending conditions 10 sec.
Si38-606 Protection Control 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] In the case of multi-outdoor-unit system, each outdoor unit performs this control ★ individually in the following sequence.
Protection Control 4.2 Si38-606 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<0.16MPa Pe: LP pressure sensor detection value Pe>0.20MPa Low pressure limited Pe<0.12MPa 52 Hz + OFF Pe<0.01MPa Low pressure standby 56 When occurring 3 times within 30 min., the malfunction code “ E4 ” is output.
Si38-606 4.3 Protection Control 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. ★ Each compressor performs the discharge pipe temperature protection control individually in the following sequence. [INV compressor] Discharge pipe temp.
Protection Control 4.4 Si38-606 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. ★ In the case of multi-outdoor-unit system, each INV compressor performs these controls in the following sequence. [Inverter overcurrent protection control] Not limited Invertercurrent >13.
Si38-606 4.5 Protection Control STD Compressor Overload Protection This control is used to prevent abnormal heating due to overcurrent to the compressor resulting from failures of STD compressor such as locking. STD compressor ON Demand to operate. CT detection current value>15.0A for more than 3 sec. STD compressor OFF for 30 min. When occurring 3 times within 90 minutes, the malfunction code “ E6 ”is output. 4.
Other Control Si38-606 5. Other Control 5.1 Emergency Operation If the compressor cannot operate, this control inhibits any applicable compressor or outdoor unit from operating to perform emergency operation only with the operative compressor or outdoor unit. Caution "For making a compressor unable to operate due to malfunction, etc., be sure to conduct the work with emergency operation setting. Never execute work such as disconnection of the power cable from magnet contactor.
Si38-606 5.2 Other Control Demand Operation In order to save the power consumption, the capacity of outdoor unit is saved with control forcibly by using “Demand 1 Setting” or “Demand 2 Setting”. To operate the unit with this mode, additional setting of “Continuous Demand Setting” or external input by external control adapter is required. [Demand 1 setting] Setting Standard for upper limit of power consumption Demand 1 setting 1 Demand 1 setting 2 (factory setting) Approx. 60% Approx.
Outline of Control (Indoor Unit) Si38-606 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.
Si38-606 Outline of Control (Indoor Unit) 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.
Outline of Control (Indoor Unit) 6.2 Si38-606 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.
Si38-606 6.3 Outline of Control (Indoor Unit) 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.
Outline of Control (Indoor Unit) Heating Si38-606 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.
Si38-606 6.4 Outline of Control (Indoor Unit) 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.
Outline of Control (Indoor Unit) Si38-606 68 Function
Si38-606 Part 5 Test Operation 1. Test Operation ......................................................................................70 1.1 Procedure and Outline ...........................................................................70 1.2 Operation when Power is Turned On .....................................................73 2. Outdoor Unit PC Board Layout .............................................................74 3. Field Setting .............................................................
Test Operation Si38-606 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. 2Power wiring 2Control transmission wiring between units 2Earth wire Check on refrigerant piping ¡ Is the wiring performed as specified? ¡ Are the designated wires used? ¡ Is the grounding work completed? Use a 500V megger tester to measure the insulation.
Si38-606 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. ¡ The test operation is started automatically. The following judgements are conducted within 15 minutes.
Test Operation Si38-606 1.1.4 Confirmation on normal operation • • • • • 72 Conduct normal unit operation after the check operation has been completed. (When outdoor air temperature is 25°C or higher, the unit can not be operated with heating mode. See the instruction manual attached.) Confirm that the indoor/outdoor units can be operated normally.
Si38-606 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 Si38-606 2.
Si38-606 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 Si38-606 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.
Si38-606 Field Setting 3.1.3 Simplified Remote Controller BRC2A51 BRC2C51 Group No. setting by simplified remote controller. 1. Remove the cover of remote controller. 2. While in normal mode, press the [BS6] BUTTON (field set) to enter the FIELD SET MODE. 3. Select the mode No. [00] with [BS2] BUTTON (temperature setting ▲) and [BS3] BUTTON (temperature setting ▼). 4. Select the group No. with [BS9] BUTTON (set A) and [BS10] BUTTON (set B). (Group Nos. increase in the order of 1-00, 1-01......
Field Setting Si38-606 3.1.4 Setting Contents and Code No. – VRV Unit VRV Mode Setting Setting Contents system No. Switch 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) Super long life filter Light 02 Approx. 10,000 hrs. 03 04 — — Super long life filter — — Heavy Approx. 5,000 hrs.
Si38-606 Field Setting 3.1.
Field Setting Si38-606 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. Standard Long Life Ultra Long Life Filter 200 hrs. 100 hrs. 2,500 hrs. 1,250 hrs. 10,000 hrs. 5,000 hrs. Setting Contamination Light Contamination Heavy 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.
Si38-606 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 Si38-606 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. First Code No. Second Code No. 1 01 02 F : 4-direction air flow T : 3-direction air flow 03 W : 2-direction air flow 13 (23) Setting Setting of Air Flow Direction Adjustment Only the model FXK has the function.
Si38-606 Field Setting 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.
Field Setting Si38-606 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.
Si38-606 Field Setting 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 table below.) Centralized controller is normally available for operations.
Field Setting How to Select Operation Mode Example ON by remote controller (Unified ON by central remote controller) Si38-606 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.
Si38-606 3.2 Field Setting Field Setting from Outdoor Unit 3.2.1 Field Setting from Outdoor Unit Setting by dip switches The following field settings are made by dip switches on PC board. Dipswitch No. DS1-1 Caution Setting item Setting ON OFF (Factory set) Cool / Heat select Used to set cool / heat select by remote controller equipped with outdoor unit. ON DS1-2 ~DS1-4 OFF (Factory set) DS2-1 ~4 DS3-1, 2 Description Not used Do not change the factory settings.
Field Setting Si38-606 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) : Used to select the cool/heat setting. Also indicates during “abnormal”, “low noise control” and “demand control”. d Setting mode 2 (H1P on) Used to modify the operating status and to set program addresses, etc. Usually used in servicing the system.
Si38-606 Field Setting a. “Setting mode 1” This mode is used to check the following items. 1. Check items ······· The following items can be checked.
Field Setting Si38-606 b. “Setting mode 2” No. Push and hold the MODE button (BS1) for 5 seconds and set to “Setting mode 2”. EMG (Emergency operation 1) 1 Cool/heat unified address Low noise/demand address Sets address for cool/heat unified operation. Allows forced operation of indoor unit fan while unit is stopped.
Si38-606 Field Setting Setting item display No. 0 1 Setting item EMG (emergency operation) INV compressor operation inhibited.
Field Setting Si38-606 Setting item display No.
Si38-606 Field Setting c. Monitor mode No. To enter the monitor mode, push the MODE button (BS1) when in “Setting mode 1”. H1P Push the RETURN button (BS3) and switches to the initial status of “Monitor mode”. ∗ Push the MODE button (BS1) and returns to “Setting mode 1”.
Field Setting Si38-606 Push the SET button and match with the LEDs No. 1 - 15, push the RETURN button, and enter 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.
Si38-606 Field Setting 3.2.2 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 Si38-606 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 Content Mode 1 Mode 2 The compressor operates at approx. 60% or less of rating. The compressor operates at approx. 70% or less of rating. Mode 3 The compressor operates at approx. 80% or less of rating.
Si38-606 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 Si38-606 {: ON d c Setting No. Setting contents 22 External low noise / Demand setting { z z z z Setting No.
Si38-606 Field Setting 3.2.3 Setting of Refrigerant Additional Charging Operation When additional refrigerant is not charged all with outdoor unit in stop mode, operate the outdoor unit and charge the liquid refrigerant from the service port of liquid stop value. The additional charging operation is activated by pushbutton switch on the outdoor unit PC board. [Additional refrigerant charge total flow] STEP 1 Confirm LIQ & SUCTION and Oil equalizing Stop valve closed.
Field Setting Si38-606 [Operation procedure detail] c After turning the respective remote switch of indoor and outdoor units off and charging the refrigerant, turn on the power of indoor and outdoor units. Do not fail to turn the power off and charge the refrigerant with outdoor unit in stop mode before adding the refrigerant following this procedure, otherwise resulting in trouble.
Si38-606 Field Setting 3.2.5 Setting of Vacuuming Mode In order to perform vacuuming operation at site, fully open the expansion valves of indoor and outdoor units to turn on some solenoid valves. [Operating procedure] c With Setting Mode 2 while the unit stops, set (B) Refrigerant recovery / Vacuuming mode to ON. The expansion valves of indoor and outdoor units fully open and some of solenoid valves open.
Field Setting 102 Si38-606 Test Operation
Si38-606 Part 6 Troubleshooting 1. Troubleshooting by Remote Controller ...............................................105 1.1 1.2 1.3 1.4 The INSPECTION / TEST Button.........................................................105 Self-diagnosis by Wired Remote Controller .........................................106 Self-diagnosis by Wireless Remote Controller .....................................107 Operation of the Remote Controller’s Inspection / Test Operation Button .....................................
Si38-606 2.31 “L4” Outdoor Unit: Malfunction of Inverter Radiating Fin Temperature Rise.................................................................................153 2.32 “L5” Outdoor Unit: Inverter Compressor Abnormal ...............................154 2.33 “L8” Outdoor Unit: Inverter Current Abnormal.......................................155 2.34 “L9” Outdoor Unit: Inverter Start up Error..............................................156 2.
Si38-606 Troubleshooting by Remote Controller 1. Troubleshooting by Remote Controller 1.1 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.
Troubleshooting by Remote Controller 1.2 Si38-606 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 113 for malfunction code and malfunction contents.
Si38-606 1.3 Troubleshooting by Remote Controller 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.
Troubleshooting by Remote Controller Si38-606 The lower digit of the code changes as shown below when the UP and DOWN buttons are pressed.
Si38-606 Troubleshooting Troubleshooting by Remote Controller 109
Troubleshooting by Remote Controller 1.4 Si38-606 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.
Si38-606 1.5 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 Si38-606 Contents and operation method Remote controller display example Display malfunction hysteresis. The history No. can be changed with the button. 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. Sensor data 0: Thermostat sensor in remote controller.
Si38-606 1.6 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 114 Si38-606 Malfunction code Operation lamp Inspection display Unit No.
Si38-606 Outdoor Unit System Centralized Control and Schedule Timer Heat Reclaim Ventilation Troubleshooting by Remote Controller Malfunction code Operation lamp Inspection display Unit No.
Troubleshooting by Remote Controller Si38-606 Malfunction code indication by outdoor unit PC board Contents of malfunction To enter the monitor mode, push the MODE button (BS1) when in “Setting mode 1”. Malfunction code Abnormal discharge pressure HPS activated E3 Abnormal suction pressure Abnormal Pe E4 Compressor lock Detection of INV compressor lock E5 Activation of OC Detection of STD1 compressor lock E6 * Refer P.93 for Monitor mode.
Si38-606 Troubleshooting by Remote Controller Malfunction Confirmation of malfunction 1 Confirmation of malfunction 2 Confirmation of malfunction 3 code LED1 LED2 LED3 LED4 LED5 LED6 LED7 LED1 LED2 LED3 LED4 LED5 LED6 LED7 LED1 LED2 LED3 LED6 LED7 E3 . 7 8 7 7 . . E7 . . . . . . 8 8 8 8 8 8 7 7 7 7 7 7 7 7 7 7 7 7 7 . . . . . . 7 7 . . . . 7 . 7 7 . . . . . . . 8 8 8 8 8 8 8 8 8 8 8 8 7 7 7 7 . 7 7 7 7 . 7 . E9 . 8 7 . 7 7 . . . . . . . . .
Troubleshooting by Indication on the Remote Controller Si38-606 2. Troubleshooting by Indication on the Remote Controller 2.1 “A0” Indoor Unit: Error of External Protection Device Remote Controller Display A0 Applicable Models All indoor unit models Method of Malfunction Detection Detect open or short circuit between external input terminals in indoor unit.
Si38-606 2.2 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 2.3 “A3” Indoor Unit: Malfunction of Drain Level Control System (S1L, 33H) Remote Controller Display A3 Applicable Models FXC, FXF, FXS, FXA, FXK, FXH (Option) , FXM (Option), FXYB 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.
Si38-606 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. NO A short circuit connector is connected to X8A (or X15A). NO Connect either a short circuit connector or float switch and turn on again.
Troubleshooting by Indication on the Remote Controller 2.
Si38-606 2.5 Troubleshooting by Indication on the Remote Controller “A7” Indoor Unit: Malfunction of Swing Flap Motor (MA) Remote Controller Display A7 Applicable Models FXC, FXA, FXF, FXH, FXK 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 Si38-606 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.
Si38-606 2.
Troubleshooting by Indication on the Remote Controller Si38-606 ∗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 4. Blue 5. Red 6. Brown × { Approx. 300Ω × × { Approx. 150Ω × × { Approx. 300Ω × { Approx. 150Ω × { Approx. 150Ω × { Approx. 150Ω × 6.
Si38-606 2.7 Troubleshooting by Indication on the Remote Controller “AF” Indoor Unit: Drain Level above Limit Remote Controller Display AF Applicable Models FXC, FXF, FXS, FXK, FXM, FXYB 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 2.8 Si38-606 “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.
Si38-606 2.9 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 Si38-606 2.10 “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.
Si38-606 Troubleshooting by Indication on the Remote Controller 2.11 “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 Si38-606 2.12 “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.
Si38-606 Troubleshooting by Indication on the Remote Controller 2.13 “E1” Outdoor Unit: PC Board Defect Remote Controller Display E1 Applicable Models RXM8, 10M 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 Si38-606 2.14 “E3” Outdoor Unit: Actuation of High Pressure Switch Remote Controller Display E3 Applicable Models RXM8, 10M 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.
Si38-606 Troubleshooting by Indication on the Remote Controller 2.15 “E4” Outdoor Unit: Actuation of Low Pressure Sensor Remote Controller Display E4 Applicable Models RXM8, 10M Method of Malfunction Detection Malfunction Decision Conditions Error is generated when the low pressure is dropped under specific pressure.
Troubleshooting by Indication on the Remote Controller Si38-606 2.16 “E5” Compressor Motor Lock Remote Controller Display E5 Applicable Models RXM8, 10M Method of Malfunction Detection Inverter PC board takes the position signal from UVWN line connected between the inverter and compressor, and detects the position signal pattern.
Si38-606 Troubleshooting by Indication on the Remote Controller 2.17 “E6” Standard Compressor Motor Overcurrent/Lock Remote Controller Display E6 Applicable Models RXM8, 10M Method of Malfunction Detection Detects the overcurrent with current sensor (CT). Malfunction Decision Conditions Malfunction is decided when the detected current value exceeds the below mentioned value for 2 seconds. 400 V unit : 15.
Troubleshooting by Indication on the Remote Controller Si38-606 2.18 “E7” Malfunction of Outdoor Unit Fan Motor Remote Controller Display E7 Applicable Models RXM8, 10M 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.
Si38-606 Troubleshooting by Indication on the Remote Controller Troubleshooting 1A Check No. 12 Check on pulse input of position signal of fan inverter PC board Is the LED (HAP) on fan inverter PC board blinking? NO Replace the fan inverter PC board. YES Check No. 8 Check on connector of fan motor (Power supply cable) Are the resistance values between phases of U, V, W balanced? Is there any short circuiting between phases of U, V, W? NO Replace the fan motor of outdoor unit. YES Check No.
Troubleshooting by Indication on the Remote Controller Si38-606 2.19 “E9” Outdoor Unit: Malfunction of Moving Part of Electronic Expansion Valve (Y1E, Y2E) Remote Controller Display E9 Applicable Models RXM8, 10M 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.
Si38-606 Troubleshooting by Indication on the Remote Controller ∗1: Coil check method for the moving part of the electronic expansion valve Disconnect 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 4. Blue 5. Red 6. Brown × { Approx. 300Ω × × { Approx. 150Ω × × { Approx. 300Ω × { Approx. 150Ω × { Approx. 150Ω × { Approx. 150Ω × 6.
Troubleshooting by Indication on the Remote Controller Si38-606 2.20 “F3” Outdoor Unit: Abnormal Discharge Pipe Temperature Remote Controller Display F3 Applicable Models RXM8, 10M Method of Malfunction Detection Abnormality is detected according to the temperature detected by the discharge pipe temperature sensor.
Si38-606 Troubleshooting by Indication on the Remote Controller 2.21 “F6” Refrigerant Overcharged Remote Controller Display F6 Applicable Models RXM8, 10M Method of Malfunction Detection Refrigerant overcharge is detected from the receiver gas pipe temperature during test operation. Malfunction Decision Conditions When the receiver gas pipe temperature is lower than evaporating temperature during test operation.
Troubleshooting by Indication on the Remote Controller Si38-606 2.22 “H7” Abnormal Outdoor Fan Motor Signal Remote Controller Display H7 Applicable Models RXM8, 10M Method of Malfunction Detection Detection of abnormal signal from fan motor. Malfunction Decision Conditions In case of detection of abnormal signal at starting fan motor.
Si38-606 Troubleshooting by Indication on the Remote Controller 2.23 “H9” Outdoor Unit: Malfunction of Thermistor for Outdoor Air (R1T) Remote Controller Display H9 Applicable Models RXM8, 10M Method of Malfunction Detection The abnormal detection is based on current detected by current sensor. Malfunction Decision Conditions When the outside air temperature sensor has short circuit or open circuit.
Troubleshooting by Indication on the Remote Controller Si38-606 2.24 “J2” Current Sensor Malfunction Remote Controller Display J2 Applicable Models RXM8, 10M Method of Malfunction Detection Malfunction is detected according to the current value detected by current sensor. Malfunction Decision Conditions When the current value detected by current sensor becomes 5A (400 V unit) or lower during STD compressor operation and 40A or more during STD compressor stop.
Si38-606 Troubleshooting by Indication on the Remote Controller 2.25 “J3” Outdoor Unit: Malfunction of Discharge Pipe Thermistor (R31 or 32T) Remote Controller Display J3 Applicable Models RXM8, 10M 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.
Troubleshooting by Indication on the Remote Controller Si38-606 2.26 “J5” Outdoor Unit: Malfunction of Thermistor (R2T) for Suction Pipe Remote Controller Display J5 Applicable Models RXM8, 10M Method of Malfunction Detection Malfunction is detected from the temperature detected by the suction pipe temperature thermistor. Malfunction Decision Conditions When a short circuit or an open circuit in the suction pipe temperature thermistor is detected.
Si38-606 Troubleshooting by Indication on the Remote Controller 2.27 “J6” Outdoor Unit: Malfunction of Thermistor (R4T) for Outdoor Unit Heat Exchanger Remote Controller Display J6 Applicable Models RXM8, 10M 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.
Troubleshooting by Indication on the Remote Controller Si38-606 2.28 “J9” Malfunction of Receiver Gas Pipe Thermistor (R5T) Remote Controller Display J9 Applicable Models RXM8, 10M Method of Malfunction Detection Malfunction is detected according to the temperature detected by receiver gas pipe thermistor (= Subcooling heat exchanger gas pipe thermistor). Malfunction Decision Conditions When the receiver gas pipe thermistor is short circuited or open.
Si38-606 Troubleshooting by Indication on the Remote Controller 2.29 “JA” Outdoor Unit: Malfunction of High Pressure Sensor Remote Controller Display JA Applicable Models RXM8, 10M 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.
Troubleshooting by Indication on the Remote Controller Si38-606 2.30 “JC” Outdoor Unit: Malfunction of Low Pressure Sensor Remote Controller Display JC Applicable Models RXM8, 10M 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 system Connection of high pressure sensor with wrong connection.
Si38-606 Troubleshooting by Indication on the Remote Controller 2.31 “L4” Outdoor Unit: Malfunction of Inverter Radiating Fin Temperature Rise Remote Controller Display L4 Applicable Models RXM8, 10M 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 89°C.
Troubleshooting by Indication on the Remote Controller Si38-606 2.32 “L5” Outdoor Unit: Inverter Compressor Abnormal Remote Controller Display L5 Applicable Models RXM8, 10M 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.
Si38-606 Troubleshooting by Indication on the Remote Controller 2.33 “L8” Outdoor Unit: Inverter Current Abnormal Remote Controller Display L8 Applicable Models RXM8, 10M Method of Malfunction Detection Malfunction is detected by current flowing in the power transistor. Malfunction Decision Conditions When overload in the compressor is detected.
Troubleshooting by Indication on the Remote Controller Si38-606 2.34 “L9” Outdoor Unit: Inverter Start up Error Remote Controller Display L9 Applicable Models RXM8, 10M Method of Malfunction Detection Malfunction is detected from current flowing in the power transistor.
Si38-606 Troubleshooting by Indication on the Remote Controller 2.35 “LC” Outdoor Unit: Malfunction of Transmission between Inverter and Control PC Board Remote Controller Display LC Applicable Models RXM8, 10M 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.
Troubleshooting by Indication on the Remote Controller Si38-606 Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred. Are the connectors between the main PC board (A1P), fan drive PC board (A3P) and inverter PC board (A2P) connected securely? NO Connect transmission wiring and turn on again. YES The transmission wiring between the outdoor unit PC board, fan drive board and inverter unit is disconnected.
Si38-606 Troubleshooting by Indication on the Remote Controller 2.36 “P1” Outdoor Unit: Inverter Over-Ripple Protection Remote Controller Display P1 Applicable Models RXM8, 10M Method of Malfunction Detection Imbalance in supply voltage is detected in PC board. Malfunction Decision Conditions When the resistance value of thermistor becomes a value equivalent to open or short circuited status. Malfunction is not decided while the unit operation is continued.
Troubleshooting by Indication on the Remote Controller Si38-606 2.37 “P4” Outdoor Unit: Malfunction of Inverter Radiating Fin Temperature Rise Sensor Remote Controller Display P4 Applicable Models RXM8, 10M Method of Malfunction Detection Resistance of radiation fin thermistor is detected when the compressor is not operating. Malfunction Decision Conditions When the resistance value of thermistor becomes a value equivalent to open or short circuited status.
Si38-606 Troubleshooting by Indication on the Remote Controller 2.38 “PJ” Outdoor Unit: Faulty Field Setting after Replacing Main PC Board or Faulty Combination of PC Board Remote Controller Display PJ Applicable Models RXYQ5MA~48MA Method of Malfunction Detection The faulty (or no) field setting after replacing main PC board or faulty PC board combination is detected through communications with the inverter.
Troubleshooting by Indication on the Remote Controller Si38-606 2.39 “UO” Low Pressure Drop Due to Refrigerant Shortage or Electronic Expansion Valve Failure Remote Controller Display U0 Applicable Models RXM8, 10M Method of Malfunction Detection Short of gas malfunction is detected by discharge pipe temperature thermistor. Malfunction Decision Conditions Supposed Causes Microcomputer judge and detect if the system is short of refrigerant.
Si38-606 Troubleshooting by Indication on the Remote Controller 2.40 “U1” Reverse Phase, Open Phase Remote Controller Display U1 Applicable Models RXM8, 10M Method of Malfunction Detection The phase of each phase are detected by reverse phase detection circuit and right phase or reverse phase are judged. Malfunction Decision Conditions When a significant phase difference is made between phases.
Troubleshooting by Indication on the Remote Controller Si38-606 2.41 “U2” Power Supply Insufficient or Instantaneous Failure Remote Controller Display U2 Applicable Models RXM8, 10M Method of Malfunction Detection Detection of voltage of main circuit capacitor built in the inverter and power supply voltage. Malfunction Decision Conditions When the capacitor above only has a voltage of 380 V or less.
Si38-606 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. Is connection wire connected between the connector X21A and X6A? NO Repair wiring. YES Turn on again. Turn K1M ON.
Troubleshooting by Indication on the Remote Controller Si38-606 2.42 “U3” Check Operation not Executed Remote Controller Display U3 Applicable Models RXM8, 10M 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.
Si38-606 Troubleshooting by Indication on the Remote Controller 2.43 “U4” Malfunction of Transmission between Indoor Units Remote Controller Display U4 Applicable Models All model of indoor unit RXM8, 10M Method of Malfunction Detection Microcomputer checks if transmission between indoor and outdoor units is normal.
Troubleshooting by Indication on the Remote Controller Si38-606 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.
Si38-606 Troubleshooting by Indication on the Remote Controller 2.44 “U5” Malfunction of Transmission between Remote Controller and Indoor Unit Remote Controller Display U5 Applicable Models All models of indoor units 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 Si38-606 2.45 “U7” Malfunction of Transmission between Outdoor Units Remote Controller Display U7 Applicable Models All models of indoor units Method of Malfunction Detection Microcomputer checks if transmission between indoor unit and remote controller is normal.
Si38-606 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. Is the outdoor units multi connection transmission wiring normal? NO Fix the outdoor units multi connection transmission wiring and reset power. YES Is the indoor / outdoor unit transmission wiring normal? NO Fix the indoor / outdoor unit transmission wiring. YES C/H SELECT is set to "IND".
Troubleshooting by Indication on the Remote Controller Si38-606 2.46 “U8” Malfunction of Transmission between MAIN and SUB Remote Controllers Remote Controller Display U8 Applicable Models All models of indoor units 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.
Si38-606 Troubleshooting by Indication on the Remote Controller 2.47 “U9” Malfunction of Transmission between Indoor and Outdoor Units in the Same System Remote Controller Display U9 Applicable Models All models of indoor units Method of Malfunction Detection Detect the malfunction signal of any other indoor unit within the system concerned. Malfunction Decision Conditions When the malfunction decision is made on any other indoor unit within the system concerned.
Troubleshooting by Indication on the Remote Controller Si38-606 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. NO 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.
Si38-606 Troubleshooting by Indication on the Remote Controller 2.48 “UA” Excessive Number of Indoor Units Remote Controller Display UA Applicable Models All models of indoor unit RXM8, 10M Method of Malfunction Detection A difference occurs in data by the type of refrigerant between indoor and outdoor units. The number of indoor units is outside of the allowable range.
Troubleshooting by Indication on the Remote Controller Si38-606 2.49 “UC” Address Duplication of Centralized Remote Controller Remote Controller Display UC Applicable Models All models of indoor unit Centralized controller Method of Malfunction Detection The principal indoor unit detects the same address as that of its own on any other indoor unit. Malfunction Decision Conditions The malfunction decision is made as soon as the abnormality aforementioned is detected.
Si38-606 Troubleshooting by Indication on the Remote Controller 2.50 “UE” Malfunction of Transmission between Centralized Remote Controller and Indoor Unit Remote Controller Display UE Applicable Models All models of indoor units 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 Si38-606 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.
Si38-606 Troubleshooting by Indication on the Remote Controller 2.51 “UF” Refrigerant System not Set, Incompatible Wiring/ Piping Remote Controller Display UF Applicable Models All models of indoor units RXM8, 10M 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 Si38-606 2.52 “UH” Malfunction of System, Refrigerant System Address Undefined Remote Controller Display UH Applicable Models All models of indoor units RXM8, 10M Method of Malfunction Detection Detect an indoor unit with no address setting. Malfunction Decision Conditions The malfunction decision is made as soon as the abnormality aforementioned is detected.
Si38-606 Troubleshooting (OP: Central Remote Controller) 3. Troubleshooting (OP: Central Remote Controller) 3.1 “M1” PC Board Defect Remote Controller Display M1 Applicable Models Centralized remote controller Method of Malfunction Detection Detect an abnormality in the DIII-NET polarity circuit. Malfunction Decision Conditions When + polarity and - polarity are detected at the same time.
Troubleshooting (OP: Central Remote Controller) 3.2 Si38-606 “M8” Malfunction of Transmission between Optional Controllers for Centralized Control Remote Controller Display M8 Applicable Models Centralized remote controller Method of Malfunction Detection Detect the malfunction according to DIII-NET transmission data. (The system will be automatically reset.) Malfunction Decision Conditions When no master controller is present at the time of the startup of slave controller.
Si38-606 3.3 Troubleshooting (OP: Central Remote Controller) “MA” Improper Combination of Optional Controllers for Centralized Control Remote Controller Display MA Applicable Models Centralized remote controller Method of Malfunction Detection Detect the malfunction according to DIII-NET transmission data. Malfunction Decision Conditions When the schedule timer is set to individual use mode, other central component is present. When multiple master controller are present.
Troubleshooting (OP: Central Remote Controller) Si38-606 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.
Si38-606 3.4 Troubleshooting (OP: Central Remote Controller) “MC” Address Duplication, Improper Setting Remote Controller Display MC Applicable Models Central remote controller Method of Malfunction Detection Detect the malfunction according to DIII-NET transmission data. Malfunction Decision Conditions Two units are both set to master controller mode or slave controller mode.
Troubleshooting (OP: Schedule Timer) Si38-606 4. Troubleshooting (OP: Schedule Timer) 4.1 “UE” Malfunction of Transmission between Central Remote Controller and Indoor Unit Remote Controller Display UE Applicable Models Schedule timer All models of indoor units Method of Malfunction Detection Microcomputer checks if transmission between indoor unit and centralized remote controller is normal.
Si38-606 Troubleshooting (OP: Schedule Timer) Troubleshooting Caution 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 removeor 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.
Troubleshooting (OP: Schedule Timer) 4.2 Si38-606 “M1” PC Board Defect Remote Controller Display M1 Applicable Models Schedule timer Method of Malfunction Detection Detect an abnormality in the DIII-NET polarity circuit. Malfunction Decision Conditions When + polarity and - polarity are detected at the same time. Supposed Causes Defect of schedule timer PC board Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred.
Si38-606 4.3 Troubleshooting (OP: Schedule Timer) “M8” Malfunction of Transmission between Optional Controllers for Centralized Control Remote Controller Display M8 Applicable Models Schedule timer Method of Malfunction Detection Detect the malfunction according to DIII-NET transmission data. (The system will be automatically reset.) Malfunction Decision Conditions When no master controller is present at the time of the startup of slave controller.
Troubleshooting (OP: Schedule Timer) 4.4 Si38-606 “MA” Improper Combination of Optional Controllers for Centralized Control Remote Controller Display MA Applicable Models Schedule timer Method of Malfunction Detection Detect the malfunction according to DIII-NET transmission data. Malfunction Decision Conditions When the schedule timer is set to individual use mode, other central component is present. When multiple master controller are present.
Si38-606 Troubleshooting (OP: Schedule Timer) 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 (OP: Schedule Timer) 4.5 Si38-606 “MC” Address Duplication, Improper Setting Remote Controller Display MC Applicable Models Schedule timer Method of Malfunction Detection Detect the malfunction according to DIII-NET transmission data. Malfunction Decision Conditions When two or more schedule timers are connected.
Si38-606 Troubleshooting (OP: Unified ON/OFF Controller) 5. Troubleshooting (OP: Unified ON/OFF Controller) 5.1 Operation Lamp Blinks Remote Controller Display Operation lamp blinks Applicable Models All models of indoor units Unified ON/OFF controller Method of Malfunction Detection Detect the malfunction according to DIII-NET transmission data.
Troubleshooting (OP: Unified ON/OFF Controller) Si38-606 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.
Si38-606 5.2 Troubleshooting (OP: Unified ON/OFF Controller) Display “Under Centralized Control” Blinks (Repeats Single Blink) “under centralized control” (Repeats single blink) Remote Controller Display Applicable Models Unified ON/OFF controller Central remote controller, Schedule timer Method of Malfunction Detection Detect the malfunction according to DIII-NET transmission data. Malfunction Decision Conditions When the centralized controller, which was connected once, shows no response.
Troubleshooting (OP: Unified ON/OFF Controller) Si38-606 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.
Si38-606 Troubleshooting (OP: Unified ON/OFF Controller) 2A Is the wiring adaptor for electrical appendices connected? YES NO Is a schedule timer connected? YES Is a parallel interface connected? NO 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 optional controllers for centralized control simultaneously.
Troubleshooting (OP: Unified ON/OFF Controller) 5.3 Si38-606 Display “Under Centralized Control” Blinks (Repeats Double Blink) Remote Controller Display “under centralized control” (Repeats double blink) Applicable Models Unified ON/OFF controller Method of Malfunction Detection Detect the malfunction according to DIII-NET transmission data. Malfunction Decision Conditions When no central control addresses are set to indoor units. When no indoor units are connected within the control range.
Si38-606 Check No. 8 Check No. 9 Troubleshooting Troubleshooting (OP: Unified ON/OFF Controller) Check on connector of fan motor (Power supply cable) (1) 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. Red U White V Black W Measure the resistance values between phases U,V,W.
Troubleshooting (OP: Unified ON/OFF Controller) Check No. 12 Si38-606 Check on pulse input of position signal of fan inverter PC board (1) Disconnect the connector X2A while power supply OFF and operation OFF. (2) Is the voltage between pins No. 4 and 5 on X2A approx. 15 V after power supply is turned on? (3) Connect the connector X2A while power supply OFF and operation OFF.
Si38-606 Part 7 Appendix 1. Piping Diagrams .................................................................................202 1.1 Outdoor Unit ........................................................................................202 1.2 Indoor Unit ...........................................................................................203 2. Wiring Diagrams .................................................................................204 2.1 Outdoor unit ........................................
Piping Diagrams Si38-606 1. Piping Diagrams 1.1 Outdoor Unit 1.1.
Si38-606 1.2 Piping Diagrams Indoor Unit FXC, FXF, FXK, FXD, FXYD, FXS, FXYB, FXM, FXH, FXA, FXL, FXN Gas piping connection port Heat exchanger Flare connection : φ19.1 or less Attached piping : Above φ25.
Wiring Diagrams Si38-606 2. Wiring Diagrams 2.1 Outdoor unit 2.1.
Si38-606 2.2 Wiring Diagrams Field Wiring 2.2.
Wiring Diagrams 2.
Si38-606 Wiring Diagrams FXC40L / 50L / 80L / 125LVE 3D034121 Appendix 207
Wiring Diagrams Si38-606 FXF25L / 32L / 40L / 50L / 63L / 80L / 100L / 125LVE 3D033829A 208 Appendix
Si38-606 Wiring Diagrams FXK25L / 32L / 40L / 63LVE 3D035466A Appendix 209
Wiring Diagrams Si38-606 3D044122H FXD20P / 25P / 32PVE (with Drain Pump) FXD20M / 25M / 32M / 40M / 50M / 63MVE (with Drain Pump) 210 Appendix
Si38-606 Wiring Diagrams 3D049605B FXD20P / 25P / 32P (without Drain Pump) FXD20M / 25M / 32M / 40M / 50M / 63MVET (without Drain Pump) Appendix 211
Wiring Diagrams Si38-606 FXYD20KA / 25KA / 32KA / 40KA / 50KA / 63KAVE 3D024108A 212 Appendix
Si38-606 Wiring Diagrams FXS20L / 25L / 32L / 40L / 50L / 63L / 80L / 100L / 125LVE 3D035467 Appendix 213
Wiring Diagrams Si38-606 FXYB20K / 25K / 32K / 40K / 50K / 63K / 80K / 100K / 125KV1 3D037591C 214 Appendix
Si38-606 Wiring Diagrams FXM40L / 50L / 63L / 80L / 100L / 125LVE 3D034209A Appendix 215
Wiring Diagrams Si38-606 FXM200L / 250LVE 3D034363 216 Appendix
Si38-606 Wiring Diagrams FXH32L / 63L / 100LVE 3D034052A Appendix 217
Wiring Diagrams Si38-606 FXA20L / 25L / 32L / 40L / 50L / 63LVE 3D034206D 218 Appendix
Si38-606 Wiring Diagrams FXL20L / 25L / 32L / 40L / 50L / 63LVE FXN20L / 25L / 32L / 40L / 50L / 63LVE 3D034183A Appendix 219
List of Electrical and Functional Parts Si38-606 3. List of Electrical and Functional Parts 3.1 Outdoor Unit 3.1.1 RXM8, 10MY1 Item Compressor Name Symbol RXM8MY1 RXM10MY1 Inverter Type Output M1C JT1FBVDKTYR 1.2kW JT1FBVDKTYR 4.2kW STD.1 Type Output M2C JT170FBKYE 4.5kW JT170FBKYE 4.5kW Crankcase heater (INV) Crankcase heater (STD.1) Fan motor Model OC protection device for STD compressor Motor E1HC E2HC 240V 33W 240V 33W — 13A M1F 0.
Si38-606 3.
List of Electrical and Functional Parts Si38-606 Model Parts Name Remote Controller Symbol FXK 25LVE FXK 32LVE Wired Remote Controller FXK 40LVE Remark FXK 63LVE BRC1C62 Wireless Remote Controller Option C/O BRC4C63 AC 220~240V 50Hz Fan Motor 1φ15W 4P M1F 1φ20W 4P Thermal Fuse 146°C Motors Drain Pump M1P AC 220-240V (50Hz) PLD-12200DM Thermal Fuse 145°C Swing Motor M1S MP8-L [3PA07312-1] AC200~240V Thermistor (Suction Air) R1T ST8601-13 φ4 L630 20kΩ (25°C) (for Heat Thermistors T
Si38-606 List of Electrical and Functional Parts Model Parts Name Remote Controller Symbol FXYD20 KAVE FXYD25 KAVE FXYD32 KAVE Wired Remote Controller Wireless Remote Controller FXYD40 KAVE FXYD50 KAVE FXYD63 KAVE Remark BRC1C62 Option C/O BRC4C64 Option AC 220~240V/220V 50/60Hz Motors Fan Motor M1F 1φ45W 1φ65W Thermal Protector 135°C Thermistor (Suction Air) R1T ST8601-2 φ4 L400 20kΩ (25°C) Thermistor (for Heat Thermistors Exchanger High Temp.
List of Electrical and Functional Parts Parts Name Remote Controller Symbol Si38-606 FXS 20LVE FXS 25LVE AC 220~240V 50Hz 1φ85W 1φ125 W 1φ50W M1F M1P Thermistor (Suction Air) R1T (for Heat Thermistors Thermistor Exchanger High Temp.
Si38-606 List of Electrical and Functional Parts Model Parts Name Remote Controller Symbol FXH 32LVE FXH 63LVE Wired Remote Controller FXH 100LVE BRC1C62 Wireless Controller Remark Option C/O BRC7E66 AC 220~240V/220V 50Hz/60Hz Fan Motor 1φ63W M1F 1φ130W Thermal protector 130°C : OFF Motors Capacitor for Fan Motor 80°C : ON 3.0µF-400V C1R 9.
List of Electrical and Functional Parts Si38-606 Model Parts Name Remote Controller Symbol FXL 20LVE FXL 25LVE Wired Remote Controller FXL 32LVE FXL 40LVE FXL 50LVE Remark FXL 63LVE BRC1C62 Option Wireless Remote Controller C/O BRC4C64 AC 220~240V 50Hz Motors Fan Motor 1φ15W M1F 1φ25W 1φ35W Thermal protector 135°C : OFF Capacitor for Fan Motor C1R 1.0µF-400V 0.5µF-400V 1.
Si38-606 Option List 4. Option List 4.1 Option List of Controllers Operation Control System Optional Accessories No.
Option List Si38-606 System Configuration No. Part name Model No. Function 1 Central remote controller DCS302CA61 Up to 64 groups of indoor units (128 units) can be connected, and ON/OFF, temperature setting and monitoring can be accomplished individually or simultaneously. Connectable up to “2” controllers in one system.
Si38-606 4.2 Option List Option Lists (Outdoor Unit) RXM8, 10MY1 Optional accessories Distributive Piping Fixing box RXM8MY1 RXM10MY1 KJB111A Refnet header Refnet joint Central drain pan kit KHRJ26K11H, KHRJ26K17H (MAX. 4 branch) (MAX. 8 branch) KHRJ26K18H, KHRJ26K37H (MAX. 6 branch) (MAX.
Selection of Pipe Size, Joints and Header Si38-606 5. Selection of Pipe Size, Joints and Header 5.1 RXM8M, 10M 5.1.1 How to select the REFNET Joint How to select the REFNET Joint When using REFNET Joints at the first branch counted from the outdoor unit side. Choose from the following table in accordance with the capacity of the outdoor unit. (Ex.
Si38-606 Selection of Pipe Size, Joints and Header 5.1.4 Piping between the REFNET Joints Select the proper pipe size using the following table based on the total capacity index of indoor units connected downstream. Connection piping size should not exceed the refrigerant piping size selected by "the model with combination units". Total capacity index <100 Liquid φ9.5 Gas φ15.9 100≤x<160 160≤x<330 φ9.5 φ12.7 φ19.1 φ25.4 5.1.
Thermistor Resistance / Temperature Characteristics Si38-606 6. Thermistor Resistance / Temperature Characteristics Indoor unit For air suction For liquid pipe For gas pipe R1T R2T R3T Outdoor unit For outdoor air For coil For suction pipe For Receiver gas pipe For oil T°C -20 -19 -18 -17 -16 -15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 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 30 232 R1T R2T R4T R5T R7T 0.0 197.81 186.53 175.97 166.07 156.80 148.10 139.
Si38-606 Thermistor Resistance / Temperature Characteristics Outdoor Unit Thermistors for Discharge Pipe (R3T) 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 Appendix 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.
Pressure Sensor Si38-606 7. Pressure Sensor High Pressure PH=(VH–0.5)×0.98 Low Pressure PL=(VL–0.5)×0.98 3 PH : Detected Pressure [High Side] MPa PL : Detected Pressure [Low Side] MPa VH : Output Voltage [High Side] VDC VL : Output Voltage [Low Side] VDC Detected Pressure PH, PL (kg/cm²) MPa 30.6 3.0 High Pressure (PH) 25.5 2.5 20.4 2.0 15.3 1.5 Low Pressure (PL) 10.2 1.0 5.1 0.
Si38-606 Method of Replacing the Inverter’s Power Transistors and Diode Modules 8. Method of Replacing the Inverter’s Power Transistors and Diode Modules 8.
Method of Replacing the Inverter’s Power Transistors and Diode Modules Si38-606 Power Transistor IGBT (On Inverter PC board) (Decision) If other than given above, the power unit is defective and must be replaced. Note: If using a digital tester, ∞ and continuity may be reversed. Diode Module (Decision) If other than given above, the diode module is defective and must be replaced. Note: 236 If using a digital tester, ∞ and continuity may be reversed.
Si38-606 Index A A0 .........................................................................118 A1 .........................................................................119 A3 .........................................................................120 A6 .........................................................................122 A7 .........................................................................123 A9 .........................................................................
Si38-606 Low Pressure Drop Due to Refrigerant Shortage or Electronic Expansion Valve Failure ..............162 Low Pressure Protection Control ...........................56 MC ............................................................... 185, 192 Method of Replacing the Inverter’s Power Transistors and Diode Modules ...................................... 235 M O M1 ............................................................... 181, 188 M8 .............................................................
Si38-606 Thermostat Sensor in Remote Controller ...............65 Troubleshooting (OP: Central Remote Controller) ...................181 (OP: Schedule Timer) ...................................186 (OP: Unified ON/OFF Controller) ..................193 U U0 ........................................................................162 U1 ........................................................................163 U2 ........................................................................164 U3 .................
Si38-606 iv Index
Si38-606 Drawings & Flow Charts A Abnormal Discharge Pipe Temperature................142 Abnormal Outdoor Fan Motor Signal ....................144 Actuation of High Pressure Switch........................134 Actuation of Low Pressure Sensor........................135 Additional refrigerant charge total flow....................99 Address Duplication of Centralized Remote Controller .......................................................176 Address Duplication, Improper Setting.........
Si38-606 Malfunction of Transmission between Central Remote Controller and Indoor Unit..............................186 Malfunction of Transmission between Centralized Remote Controller and Indoor Unit ................177 Malfunction of Transmission between Indoor and Outdoor Units in the Same System................173 Malfunction of Transmission between Indoor Units....................................................167 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.
