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TECHNICAL DATA & SERVICE MANUAL
R32
Indoor Unit
Type E1
S-160PE1R5B
Type E3
S-180PE3R5B, S-200PE3R5B, S-224PE3R5B
Outdoor Unit
U-160PZH2R5
U-160PZH2R8, U-180PZH2R8, U-200PZH2R8, U-224PZH2R8
REFERENCE NO
Order No. SBPAC1812003CE
SM830277-00
.

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Summary of Contents for Panasonic S-160PE1R5B

  • Page 1 Order No. SBPAC1812003CE TECHNICAL DATA & SERVICE MANUAL Indoor Unit Outdoor Unit Type E1 S-160PE1R5B Type E3 U-160PZH2R5 S-180PE3R5B, S-200PE3R5B, S-224PE3R5B U-160PZH2R8, U-180PZH2R8, U-200PZH2R8, U-224PZH2R8 SM830277-00 REFERENCE NO...
  • Page 2 IMPORTANT! • The following checks shall be applied to installations using Please Read Before Starting flammable refrigerants. This air conditioner must be installed by the sales dealer Appliance shall be installed, or installer. operated and stored in a room with This information is provided for use only by authorized persons.
  • Page 3 • Check that cabling will not be subject • In cases that require mechanical to wear, corrosion, excessive pressure, ventilation, ventilation openings shall be vibration, sharp edges or any other kept clear of obstruction. adverse environmental effects. • An unventilated area where the The check shall also take into account appliance using flammable refrigerants the effects of aging or continual vibration...
  • Page 4 • Ensure that the detector is not a WARNING potential source of ignition and is suitable for the refrigerant used. • When performing piping work, do not mix air except for specified • Leak detection equipment shall be set refrigerant in refrigeration cycle. It at a percentage of the lower flammable causes capacity down, and risk of limit (LFL) of the refrigerant and shall be...
  • Page 5 Others WARNING When disposal of the product, do follow • This product must not be the precautions in “12. Recovery” on page modified or disassembled under 1-11-1-1-6 and comply with national any circumstances. Modified or regulations. disassembled unit may cause fire, electric shock or injury.
  • Page 6 Check of Density Limit U-160PZH2R5 U-160PZH2R8, U-180PZH2R8, U-200PZH2R8, U-224PZH2R8 The refrigerant (R32), which is used in the air conditioner, is a flammable refrigerant. So the requirements for installation space of appliance are determined according to the refrigerant charge amount [m ] used in the appliance.
  • Page 7 Precautions for Installation Using New Refrigerant 1. Care regarding tubing (1) Process tubing Material: Use seamless phosphorous deoxidized copper tube for refrigeration. Wall thickness shall comply with the applicable legislation. For tubes of ø22.22 or larger, use the material of temper 1/2H or H (Hard copper tube). Do not bend the hard copper tube. For the renewal tubing size, refer to the Technical Data.
  • Page 8 Important Information Regarding The Refrigerant Used This product contains fluorinated greenhouse gases. Do not vent gases into the atmosphere. Refrigerant type: R32 value: 675 GWP = global warming potential Periodical inspections for refrigerant leaks may be required depending on European or local legislation. Please contact your local dealer for more information.
  • Page 9 Combination of Indoor and Outdoor Units PZH2 Single-phase S-160PE1R5B U-160PZH2R5 PZH2 3-phase S-160PE1R5B U-160PZH2R8 S-180PE3R5B S-200PE3R5B S-224PE3R5B U-180PZH2R8 U-200PZH2R8 U-224PZH2R8 viii...
  • Page 10 —— CONTENTS —— Section 1. SPECIFICATIONS ..................1-1-1-1-1 1-1. Unit Specifications ....................... 1-1-1-1-2 1-2. Major Component Specifications ................1-1-1-2-1 1-3. Other Component Specifications ................1-1-1-3-1 1-4. Dimensional Data ........................ 1-4-1 1-5. Refrigerant Flow Diagram ....................1-5-1 1-6. Operating Range ......................... 1-6-1 1-7.
  • Page 11 Section 7. REMOTE CONTROLLER FUNCTIONS SECTION..........7-1. Simple Settings Function ....................7-2. List of Simple Setting Items....................7-3. Detailed Settings Function ....................7-4. List of Detailed Setting Items ....................7-5. Simple Setting Items ......................7-10 7-6. Detailed Setting Items ......................7-12 7-7.
  • Page 12 – MEMO –...
  • Page 13: Table Of Contents

    1-10-1 1-11. Installation Instructions .................. 1-11-1-1-1 Outdoor Unit 1. U-160PZH2R5 U-160PZH2R8, U-180PZH2R8, U-200PZH2R8, U-224PZH2R8 ..........1-11-1-1-1 Supplement ..........................1-11-1-2-1 Indoor Unit Type E1 1. S-160PE1R5B.......................... 1-11-2-1-1 Type E3 2. S-180PE3R5B, S-200PE3R5B, S-224PE3R5B ..............1-11-2-2-1 1-12. Capacity Table ....................1-12-1 1-1-1-1-1...
  • Page 14 Single-Type 1-1. Unit Specifications PZH2 Ducted Type S-160PE1R5B / U-160PZH2R5 INDOOR MODEL S-160PE1R5B PANEL MODEL OUTDOOR MODEL U-160PZH2R5 Branch pipe MODEL Performance test condition ISO13253 / AS / NZS3823.1 ø, Hz 1ø 50Hz 1ø 50Hz Power supply 230V 240V 230V 240V 16.0...
  • Page 15 Single-Type 1-1. Unit Specifications PZH2 Ducted Type S-160PE1R5B / U-160PZH2R8 INDOOR MODEL S-160PE1R5B PANEL MODEL OUTDOOR MODEL U-160PZH2R8 Branch pipe MODEL Performance test condition ISO13253 / AS / NZS3823.1 ø, Hz 1ø 50Hz 3Ø 50Hz Power supply 230V 240V 400V 415V 16.0...
  • Page 16 Single-Type 1-1. Unit Specifications PZH2 High Static Pressure Ducted Type S-180PE3R5B / U-180PZH2R8 INDOOR MODEL S-180PE3R5B PANEL MODEL OUTDOOR MODEL U-180PZH2R8 Branch pipe MODEL Performance test condition ISO13253 / AS / NZS3823.1 ø, Hz 1ø 50Hz 3Ø 50Hz Power supply 230V 240V 400V...
  • Page 17 Single-Type 1-1. Unit Specifications PZH2 High Static Pressure Ducted Type S-200PE3R5B / U-200PZH2R8 INDOOR MODEL S-200PE3R5B PANEL MODEL OUTDOOR MODEL U-200PZH2R8 Branch pipe MODEL Performance test condition ISO13253 / AS / NZS3823.1 ø, Hz 1ø 50Hz 3Ø 50Hz Power supply 230V 240V 400V...
  • Page 18 Single-Type 1-1. Unit Specifications PZH2 High Static Pressure Ducted Type S-224PE3R5B / U-224PZH2R8 INDOOR MODEL S-224PE3R5B PANEL MODEL OUTDOOR MODEL U-224PZH2R8 Branch pipe MODEL Performance test condition ISO13253 / AS / NZS3823.1 ø, Hz 1ø 50Hz 3Ø 50Hz Power supply 230V 240V 400V...
  • Page 19 Model Name Heating Capacity at H2 condition TAPF *1 Indoor Unit Outdoor Unit Capacity(kW) S-160PE1R5B U-160PZH2R5 16.0 2.70 S-160PE1R5B U-160PZH2R8 16.0 2.70 S-180PE3R5B U-180PZH2R8 18.0 2.90 S-200PE3R5B U-200PZH2R8 20.0 2.70 S-224PE3R5B U-224PZH2R8 22.0 2.60 *1 Regulation for TAPF has not been fixed yet.
  • Page 20 1-2. Major Component Specifications (A) Indoor Units Ducted Type S-160PE1R5B MODEL No. S-160PE1R5B Source 230 - 240V, single-phase, 50Hz Controller P.C.B. Ass'y ACXA73C39220 Fan (Number...diameter) SIROCCO(2 / Ø225) Fan motor YSK350-4G 440W Model...Nominal output Power source 220-240 VAC No. of pole...r.p.m. (230V, High) 4P/1150±30...
  • Page 21 1-2. Major Component Specifications (A) Indoor Units High Static Pressure Ducted Type S-180PE3R5B MODEL No. S-180PE3R5B Source 230 - 240V, single-phase, 50Hz Controller P.C.B. Ass'y ACXA73C51510 Fan (Number...diameter) SIROCCO (2...ø250) Fan motor DMUB6D3AC...560W Model...Nominal output DMUB6D4AC...560W Power source 100 - 391 VDC No.
  • Page 22 (A) Indoor Units High Static Pressure Ducted Type S-200PE3R5B MODEL No. S-200PE3R5B Source 230 - 240V, single-phase, 50Hz Controller P.C.B. Ass'y ACXA73C51510 Fan (Number...diameter) SIROCCO (2...ø250) Fan motor DMUB6D3AC...560W Model...Nominal output DMUB6D4AC...560W Power source 100 - 391 VDC No. of pole...r.p.m. (230V, High) 8P...1080 Coil resistance –...
  • Page 23 (A) Indoor Units High Static Pressure Ducted Type S-224PE3R5B MODEL No. S-224PE3R5B Source 230 - 240V, single-phase, 50Hz Controller P.C.B. Ass'y ACXA73C51510 Fan (Number...diameter) SIROCCO (2...ø250) Fan motor DMUB8D4AC...750W Model...Nominal output DMUB8D5AC...750W Power source 100 - 391 VDC No. of pole...r.p.m. (230V, High) 8P...1180 Coil resistance –...
  • Page 24 (B) Outdoor Units U-160PZH2R5 MODEL No. U-160PZH2R5 230 - 240V   1-Phase 50Hz Source Controller P.C.B. Ass'y ACXA73C49990 Control circuit fuse Compressor Model..number 9VD550XAB21 Source 270V DC MOTOR Nominal output 3,800 Compressor oil 1,900 Coil resistance Ω U-V 0.229  U-W  0.223 V-W  0.223 (Ambient temperature 25°C) Safety control Discharge temperature control –...
  • Page 25 (B) Outdoor Units U-160PZH2R8 MODEL No. U-160PZH2R8 400 - 415V   3-Phase 50Hz Source Controller P.C.B. Ass'y ACXA73C49270 Control circuit fuse Compressor Model..number 9VD550XAA21 Source 460V DC MOTOR Nominal output 3,800 Compressor oil 1,900 Coil resistance Ω U-V 0.735  U-W  0.715 V-W  0.715 (Ambient temperature 25°C) Safety control Discharge temperature control –...
  • Page 26 (B) Outdoor Units U-180PZH2R8 MODEL No. U-180PZH2R8 Source 400 - 415V 3-Phase 50Hz Controller P.C.B. Ass'y ACXA73C49270 Control circuit fuse Compressor Model..number 9VD550XAA21 Source 460V DC MOTOR Nominal output 4,200 Compressor oil 1,900 Coil resistance Ω U-V 0.735  U-W 0.715  V-W 0.715 (Ambient temperature 25°C) Safety control Discharge temperature control –...
  • Page 27 (B) Outdoor Units U-200PZH2R8 MODEL No. U-200PZH2R8 Source 400 - 415V 3-Phase 50Hz Controller P.C.B. Ass'y ACXA73C49250 Control circuit fuse Compressor Model..number 9VD550XAA21 Source 460V DC MOTOR Nominal output 4,800 Compressor oil 1,900 Coil resistance Ω U-V 0.735  U-W 0.715  V-W 0.715 (Ambient temperature 25°C) Safety control Discharge temperature control –...
  • Page 28 (B) Outdoor Units U-224PZH2R8 MODEL No. U-224PZH2R8 Source 400 - 415V 3-Phase 50Hz Controller P.C.B. Ass'y ACXA73C49250 Control circuit fuse Compressor Model..number 9VD550XAA21 Source 460V DC MOTOR Nominal output 5,500 Compressor oil 1,900 Coil resistance Ω U-V 0.735  U-W 0.715  V-W 0.715 (Ambient temperature 25°C) Discharge temperature control Safety control –...
  • Page 29 1 1 1 1-3. Other Component Specifications Outdoor Units U-160PZH2R5 MODEL No. Outdoor Unit U-160PZH2R5 Power Transformer Rated – Source VAC, Hz – – Secondary – Coil resistance Ω – Thermal cut off temperature – Thermistor (Coil / Air sensor): TH1, TH2, TH3, TH4 Resistance kΩ...
  • Page 30 Outdoor Units U-160PZH2R8 MODEL No. Outdoor Unit U-160PZH2R8 Power Transformer Rated – Source VAC, Hz – – Secondary – Coil resistance Ω – Thermal cut off temperature – Thermistor (Coil / Air sensor): TH1, TH2, TH3, TH4 Resistance kΩ -20°C: 38.48±2%     20°C: 6.517±2% -10°C: 23.67±2%     30°C: 4.448±2% 0°C: 15.00±2%     40°C: 3.100±2% 5°C: 12.06±2%     45°C: 2.607±2%...
  • Page 31 1-3. Other Component Specifications Outdoor Units U-180PZH2R8 MODEL No. Outdoor Unit U-180PZH2R8 Power Transformer Rated – Source VAC, Hz – – Secondary – Coil resistance Ω – Thermal cut off temperature – Thermistor (Coil / Air sensor): TH1, TH2, TH3, TH4 Resistance kΩ...
  • Page 32 Outdoor Units U-200PZH2R8 MODEL No. Outdoor Unit U-200PZH2R8 Power Transformer Rated – Source VAC, Hz – – Secondary – Coil resistance Ω – – Thermal cut off temperature Thermistor (Coil / Air sensor): TH1, TH2, TH3, TH4 Resistance kΩ -20°C: 38.48±2%     20°C: 6.517±2% -10°C: 23.67±2%     30°C: 4.448±2% 0°C: 15.00±2%     40°C: 3.100±2% 5°C: 12.06±2%     45°C: 2.607±2%...
  • Page 33 Outdoor Units U-224PZH2R8 MODEL No. Outdoor Unit U-224PZH2R8 Power Transformer Rated – Source VAC, Hz – – Secondary – Coil resistance Ω – – Thermal cut off temperature Thermistor (Coil / Air sensor): TH1, TH2, TH3, TH4 Resistance kΩ -20°C: 38.48±2%     20°C: 6.517±2% -10°C: 23.67±2%     30°C: 4.448±2% 0°C: 15.00±2%     40°C: 3.100±2% 5°C: 12.06±2%     45°C: 2.607±2%...
  • Page 34 1-4. Dimensional Data (A) Indoor Units: Ducted Type S-160PE1R5B POSITION OF SUSPENSION BOLT i o j ● 1160 absorb unnecessary vibration. 1100 l l a ● fi gure for easy water drainage. 1~3mm Drainage hole Unit:mm Refrigerant liquid tubing(Flare) Ø 9.52 Refrigerant gas tubing(Brazing) Ø...
  • Page 35 (A) Indoor Units: High Static Pressure Ducted Type S-180PE3R5B, S-200PE3R5B, S-224PE3R5B Required Minimum Space for Installation and Service (1) Dimensions of suspension bolt pitch and unit Unit: mm 1006 554 (Suspension bolt pitch) Inspection access (600×600) (Field supply) Min. 690 (Space for service) Ceiling Min.
  • Page 36 (B) Outdoor Unit: U-160PZH2R5 Unit: mm U-160PZH2R8, U-180PZH2R8 Mounting hole (4-R6.5), anchor bolt : M10 Air intake Refrigerant tubing (liquid tube), flared connection (ø9.52) (10) Refrigerant tubing (gas tube), flared connection (ø19.05) *1 Refrigerant tubing port Electrical wiring port (ø13) Air intake Electrical wiring port (ø22) Electrical wiring port (ø27)
  • Page 37 (B) Outdoor Unit: U-200PZH2R8, U-224PZH2R8 Unit: mm Mounting hole (4-R6.5), anchor bolt : M10 Refrigerant tubing (liquid tube), Air intake flared connection (ø12.7) (10) Refrigerant tubing (gas tube), flared connection (ø19.05) * Refrigerant tubing port Electrical wiring port (ø13) Electrical wiring port (ø22) Air intake Electrical wiring port (ø27) Electrical wiring port (ø35)
  • Page 38 1-5. Refrigerant Flow Diagram Cooling cycle Heating cycle Indoor Unit : Outdoor Unit : U-160PZH2R5 S-160PE1R5B U-160PZH2R8, U-180PZH2R8 S-180PE3R5B S-160PE1R5B : 19.05 Brazing connection S-180PE3R5B : High pressure (Pipe length: ~50m) switch 19.05 Gas line 4-way valve Muffler Muffler service valve (Pipe length:50~75m) 25.4...
  • Page 39: Operating Range

    1 1 1 1-6. Operating Range S-160PE1R5B − U-160PZH2R5, U-160PZH2R8 S-180PE3R5B − U-180PZH2R8 S-200PE3R5B − U-200PZH2R8 S-224PE3R5B − U-224PZH2R8 Temperature Indoor air intake temp. Outdoor air intake temp. Maximum 32°C DB 46°C DB Cooling Minimum 18°C DB –15°C DB Maximum 30°C DB...
  • Page 40: Capacity Correction Graph According To Temperature Condition

    1-7. Capacity Correction Graph According to Temperature Condition U-160PZH2R5 / U-160PZH2R8 / U-180PZH2R8 / U-200PZH2R8 / U-224PZH2R8 (For 50 Hz) Cooling capacity ratio (maximum capacity) Heating capacity ratio (maximum capacity) Indoor air intake temp (WB) °C Indoor air intake temp ( °C °C 22WB...
  • Page 41 Graph of capacity change characteristics resulting from tubing length and elevation difference (Performance correction coefficients by elevation difference of refrigerant tube length [performance change rate ÷ 100] is calculated by the following line map.) U-160PZH2R5 U-160PZH2R8 / U-180PZH2R8 (For 50 Hz) <Cooling>...
  • Page 42 U-160PZH2R5 Rated capacity ratio for cooling Rated capacity ratio for heating 122% 120% Capacity (kW) Capacity (kW) U-160PZH2R8 Rated capacity ratio for cooling Rated capacity ratio for heating 122% 123% Capacity (kW) Capacity (kW) U-180PZH2R8 Rated capacity ratio for cooling Rated capacity ratio for heating 128% 122%...
  • Page 43: Noise Criterion Curves

    1-8. Noise Criterion Curves High Static Pressure Ducted Type HIGH MODEL : S-160PE1R5B MODEL : S-180PE3R5B SOUND LEVEL HIGH 51 dB(A) SOUND LEVEL : HIGH 46 dB(A) 47 dB(A) 41 dB(A) CONDITION Under the unit 1.5m CONDITION : Under the unit 1.5 m...
  • Page 44 COOLING HEATING U-160PZH2R5 U-160PZH2R5 : U-160PZH2R8 : U-160PZH2R8 MODEL MODEL SOUND LEVEL : 58 dB(A) SOUND LEVEL : 60dB(A) CONDITION : 1 m in front at height of 1.5 m CONDITION : 1 m in front at height of 1.5 m NC-70 NC-70 NC-60...
  • Page 45 COOLING HEATING : U-200PZH2R8 : U-200PZH2R8 MODEL MODEL SOUND LEVEL : 58 dB(A) SOUND LEVEL : 62dB(A) CONDITION : 1 m in front at height of 1.5 m CONDITION : 1 m in front at height of 1.5 m NC-70 NC-70 NC-60 NC-60...
  • Page 46: Indoor Fan Performance

    1-9. Indoor Fan Performance Type E1 S-160PE1R5B P-Q curve 20.0 30.0 40.0 50.0 60.0 70.0 Air Volume (m /min) 1-9-1...
  • Page 47 Type E3 External Static Pressure Setting Choose one of the methods (selection of “a”, “b”, “c” within the range of dotted line as shown in the flowchart below) and make settings. a. No setting changes: When using as it is factory preset at shipment. (If resetting after external static pressure setting once, it might be different from factory preset.) b.
  • Page 48 1-9-1. How to Set on PC Board 1. Turn off the power breaker to halt the supply of electricity to the PC board. 2. Open the lid of the electrical component box and confirm the location where the Select switch on the indoor unit control PCB is placed.
  • Page 49 1-9-3. Operating the High-spec Wired Remote 3. Select the “Code no.” by pressing the Controller (CZ-RTC5B) button. Change the “Code no.” to “5D” by pressing the button (or keeping it pressed). 20:30 (THU) Detailed settings 20:30 (THU) Unit no. Code no. Set data START Sel.
  • Page 50 1-9-4. Indoor Fan Performance Cooling Heating Cooling Item code “ ” Heating Cooling Setting at shipment Heating Type 180 (External static pressure 60 Pa) (External static pressure 100 Pa) (External static pressure 150 Pa) 45 50 55 60 65 70 75 80 65 70 75 80 85 Air Volume (m...
  • Page 51: Electrical Wiring

    Also, check any specified instruction or limitations. Recommended Wire Length and Wire Diameter for Power Supply System Indoor unit (B) Power supply Time delay fuse or circuit capacity 2.5 mm S-160PE1R5B Max. 130 m 10-16 A S-180PE3R5B Max. 30 m 10-16 A S-200PE3R5B...
  • Page 52: Outdoor Unit

    Wiring System Diagrams <Type E1> * 3-phase model connections Indoor unit (No.1) Power supply Outdoor unit (3-phase) 230-240V ~50Hz INV unit Ground Power supply Remote 400 – 415 V 3 N~ 50Hz controller Ground * Single-phase model connections Indoor unit (No.1) Power supply Outdoor unit (single-phase)
  • Page 53 <Type E1> CAUTION (1) When linking the outdoor units in a network, disconnect the terminal extended from the short plug from all outdoor units except any one of the outdoor units. (When shipping: In shorted condition.) For a system without link (no wiring connection between outdoor units), do not remove the short plug. (2) Do not install the inter-unit control wiring in a way that forms a loop.
  • Page 54 <Type E3> CAUTION (1) When linking the outdoor units in a network, disconnect the terminal extended from the short plug from all outdoor units except any one of the outdoor units. (When shipping: In shorted condition.) For a system without link (no wiring connection between outdoor units), do not remove the short plug. (2) Do not install the inter-unit control wiring in a way that forms a loop.
  • Page 55 How to connect wiring to the terminal For stranded wiring Examples of shield wires (1) Cut the wire end with cutting pliers, then strip the insulation (1) Remove cable coat not to scratch braided shield. to expose the stranded wiring about 10 mm and tightly twist the wire ends.
  • Page 56: U-160Pzh2R5

    U-160PZH2R5 U-160PZH2R8, U-180PZH2R8, U-200PZH2R8, U-224PZH2R8 ELECTRICAL WIRING This air conditioner must be installed in accordance with national wiring regulations. Cables connected to outdoor unit must be approved polychloroprene sheathed type 60245 IEC57 or H05RN-F/H07RN-F or heavier. The units must be connected to the supply cables for fixed wiring by qualified technician. Circuit breaker must be incorporated in the fixed wiring in accordance with the national wiring regulations.
  • Page 57 Wiring System Diagrams • Outdoor unit / 3-phase model • Outdoor unit / single-phase model Power supply (230-240V~) Power supply (400-415V 3N~) Power supply (230-240V~) Power supply (230-240V~) Circuit breaker Circuit breaker Circuit breaker Circuit breaker protective protective Switch Switch Switch Switch earth...
  • Page 58 (6) Use the standard power supply cables for Europe (such as H05RN-F or H07RN-F which conform to CENELEC (HAR) rating specifications) or use the cables based on IEC standard. (60245 IEC57, 60245 IEC66) Loose wiring may cause the terminal to overheat or result in unit malfunction. A fire hazard may also occur. Therefore, ensure that all wiring is tightly connected.
  • Page 59 1-11. Installation Instructions ■ Outdoor Unit 1. U-160PZH2R5 U-160PZH2R8, U-180PZH2R8, U-200PZH2R8, U-224PZH2R8 PRECAUTION FOR USING R32 REFRIGERANT • The basic installation work procedures are the same as conventional refrigerant (R410A, R22) models. However, pay careful attention to the following points: WARNING Since the working pressure is higher than that of refrigerant R22 models, some of the piping and installation and service tools are special.
  • Page 60 • Servicing shall only be performed as recommended by the equipment manufacturer. Maintenance and repair requiring the assistance of other skilled personnel shall be carried out under the supervision of the person competent in the use of fl ammable refrigerants. •...
  • Page 61 2-8. Checks to the refrigeration equipment • Where electrical components are being changed, they shall be fi t for the purpose and to the correct specifi cation. • At all times the manufacturer’s maintenance and service guidelines shall be followed. •...
  • Page 62 6. Detection of fl ammable refrigerants • Under no circumstances shall potential sources of ignition be used in the searching for or detection of refrigerant leaks. • A halide torch (or any other detector using a naked fl ame) shall not be used. 7.
  • Page 63 9. Charging procedures • In addition to conventional charging procedures, the following requirements shall be followed. - Ensure that contamination of different refrigerants does not occur when using charging equipment. - Hoses or lines shall be as short as possible to minimize the amount of refrigerant contained in them. - Cylinders shall be kept upright.
  • Page 64 11. Labelling • Equipment shall be labelled stating that it has been de- commissioned and emptied of refrigerant. • The label shall be dated and signed. • Ensure that there are labels on the equipment stating the equipment contains fl ammable refrigerant. 12.
  • Page 65 Check of Density Limit U-160PZH2R5 U-160PZH2R8, U-180PZH2R8, U-200PZH2R8, U-224PZH2R8 The refrigerant (R32), which is used in the air conditioner, is a flammable refrigerant. So the requirements for installation space of appliance are determined according to the refrigerant charge amount [m ] used in the appliance.
  • Page 66 1. ACCESSORIES SUPPLIED WITH OUTDOOR UNIT The following parts are supplied as accessories with each outdoor unit. Check that all accessory parts are present before installing the outdoor unit. Part name Diagram Quantity Part name Diagram Quantity Protective bushing Joint tubing A (ø19.05 ø25.4) *1 (for protecting electrical wires) Banding strap...
  • Page 67 3. SELECTING THE LOCATION FOR INSTALLATION SERVICE Please secure necessary space to guarantee performance and service & maintenance. For multiple installations, please secure enough space to enable removal of side face screws between units. (unit:mm) The below mentioned distance is required for optimal unit performance. Allow as much space as possible in order to obtain the best performance from the units.
  • Page 68 4. TRANSPORT AND INSTALL THE OUTDOOR UNIT Transporting 1. Transport the outdoor unit in its original packaging as close as possible to the installation location. 2. In the event that the unit needs to be lifted or suspended, use a rope or belt and use cloth or wood as padding to avoid damaging the unit. 3.
  • Page 69 Specification for tube connecting indoor unit to outdoor unit U-160PZH2R8 U-180PZH2R8 U-200PZH2R8 U-224PZH2R8 Total tube length 75 m 60 m Outdoor located higher installation 30 m 30 m Height difference Outdoor located lower installation 30 m 30 m Charge-less tube length 5-30 m 5-30 m (Tube length) Less than 50 m : 45 g/m...
  • Page 70 If the exterior of the outdoor unit valves has been finished with Tightening torque (approx.) CAUTION a square duct covering, make sure you allow sufficient space to ø9.52 34 N•m~42 N•m access the valves and to allow the panels to be attached and (Liquid tube) {340 kgf•cm~420 kgf•cm} removed.
  • Page 71 6. SELECTING THE LOCATION FOR INSTALLATION SERVICE When installing multiple units, allow enough space in between the units and the side of the building. Example of connecting tube process (1) Front mounting (2) Right mounting/flare processing (Unit: mm) Flare processing Flare processing Joint Cutting...
  • Page 72 7. LEAK TEST AND EVACUATION Leak Tightness Test Method Use nitrogen gas for the leak tightness test. Keep 3-way valve fully closed and pressurize through 3-way valve service port. Using flammable gas can cause an explosion. Do not pressurize to the default value at once. Pressurize gradually. (1) Pressurize to 0.5MPa {5 kgf/cm²G} and then leave it for 5 minutes to ensure that Outdoor unit the pressure does not drop.
  • Page 73 CONNECTION FOR DEMAND AND FORCED STOP 1. CONNECTION PROCEDURE Be sure to always turn the power off first when setting up the wire and cable connections. Failure to do so may lead to electric shock or unit failure. Forced Stop connection for the next system Outdoor unit The next system outdoor unit...
  • Page 74 WHEN CONNECTING THE DEMAND CONTROLLER INPUT It is possible to choose various demand levels. Termrial no. for See the table shown on the right. Description demand section DRM3 Approx. 75% of rated power input DRM2 Approx. 50% of rated power input DRM1 Compressor off DRM1 DRM2 DRM3 C...
  • Page 75 2. WIRING PROCEDURE Follow the wiring procedure below for terminal connection. (1) Secure and clamp the power and signal lines with the tie, set up close to the valve. (2) Set the wiring and cables for the power and signal lines to the outdoor unit together, and secure each wire and cable with the tie. (3) Set up the wiring and cable for the outdoor unit tubing and secure with a tie.
  • Page 76: Supplement

    8. Supplement Supplement 1. Dimensions of Air-Discharge Chamber In snowy regions, if there is concern that snow may enter the air discharge chamber, remove the base of the chamber before using. Q’ty Reference diagram Upward, Air-discharge support Unit: mm Upward, side installation fixture t0.8 Upward, Louver...
  • Page 77 8. Supplement Reference diagram for Upward, side installation fixture (field supply) Unit: mm 2-ø5 HOLE 585±0.2 (1.6) (1.6) (1.6) (1.6) 608.2 Reference diagram for Upward, Louver (field supply) Unit: mm 610.4±0.2 1-11-1-2-2...
  • Page 78 8. Supplement Reference diagram for Upward, Louver installation guide (field supply) Unit: mm 90° ø3.3±0.05 ø6.5 DTL A(S=1:1) (2 POSITION) 2-M4 FUNNEL EXTRUDED HOLE (THIS SURFACE 凸) 585±0.2 2-R3 2-ø5 HOLE 615±0.2 Reference diagram for Downward, Air-discharge support (field supply) Unit: mm (121.5) 59.2...
  • Page 79 8. Supplement Reference diagram for Downward, Right side installation fixture (field supply) Unit: mm 6 2-ø5 HOLE 615±0.2 DTL A (S=1:2) Reference diagram for Downward, Left side installation fixture (field supply) Unit: mm 2-ø5 HOLE DTL A 615±0.2 (S=1:2) 1-11-1-2-4...
  • Page 80 8. Supplement Reference diagram for Downward, Louver (field supply) Unit: mm 610.4±0.2 Reference diagram for Downward, Upward installation fixture (field supply) Unit: mm (2.6) 605.2 (2.6) 605.2 610.4±0.2 1-11-1-2-5...
  • Page 81 8. Supplement Reference diagram for Downward, Downward installation fixture (field supply) Unit: mm DTL A (S=1:2) 220.4 550.4 610.4±0.2 1-11-1-2-6...
  • Page 82 8. Supplement 2. Dimensions of Wind-proof Duct Reference diagram Air Intake Unit: mm Air-discharge Air-discharge (322.5) 41.5 Air-discharge Air-discharge Wind-proof Duct Air- Air- discharge discharge Wind-proof Duct Air- Air- discharge discharge Reference diagram for wind-proof duct (field supply) Unit: mm SPOT WELDING 4 POSITION SPOT WELDING 4 POSITION SPOT WELDING...
  • Page 83 8. Supplement 3. Dimensions of Snow-proof Vents Reference diagram Q’ty Air-discharge Top side t 1.0 Unit: mm (32.5) 233.5 Air-discharge Right side t 1.0 Air-discharge Left side t 1.0 Snow-proof Top side 1 t 1.0 Snow-proof Rear side 1 t 1.0 Snow-proof Right side 1 t 1.0 Snow-proof Left side 1...
  • Page 84 8. Supplement 2 Reference diagram for Air-discharge Right side (field supply) Unit: mm 90° ø3.3±0.05 ø6.5 2-M4 FUNNEL EXTRUDED HOLE DTL FUNNEL EXTRUDED HOLE(S=1:1) (THIS SURFACE 凹) (3 POSITION) (1.7) (615.2) M4 FUNNEL EXTRUDED HOLE (THIS SURFACE 凹) 615.2 2-ø5 HOLE 3 Reference diagram for Air-discharge Left side (field supply) 90°...
  • Page 85 8. Supplement 4 Reference diagram for Snow-proof Top side 1 (field supply) Unit: mm (282.5) 2-ø5.5 HOLE 5×14.5 OVAL HOLE 15.9 6-ø5.5 HOLE SEC A-A(S=1:1) 282.5 303.5 5 Reference diagram for Snow-proof Rear side 1 (field supply) Unit: mm 6-ø5 HOLE 1-11-1-2-10...
  • Page 86 8. Supplement 6 Reference diagram for Snow-proof Right side 1 (field supply) Unit: mm 90° ø3.3±0.05 ø6.5 DTL M4 FUNNEL EXTRUDED HOLE(S=1:1) (5 POSITION) 552.5 13.5 2-M4 FUNNEL EXTRUDED HOLE 3-M4 FUNNEL (THIS SURFACE 凹) EXTRUDED HOLE (555.5) (THIS SURFACE 凹) M4 FUNNEL EXTRUDED HOLE 755.5...
  • Page 87 8. Supplement 8 Reference diagram for Snow-proof Top side 2 (field supply) Unit: mm (690) 3-ø5.5 HOLE 2-ø5.5 HOLE 5×27 OVAL HOLE 5×15.6 OVAL HOLE 214.5 6-ø5.5 HOLE SEC A-A(S=1:1) 9 Reference diagram for Snow-proof Rear side 2 (field supply) Unit: mm 6-ø5 HOLE M4 FUNNEL EXTRUDED HOLE...
  • Page 88 8. Supplement 10 Reference diagram for Snow-proof Right side 2 (field supply) Unit: mm 90° ø3.3±0.05 ø6.5 DTL M4 FUNNEL EXTRUDED HOLE(S=1:1) (5 POSITION) 552.5 13.5 2-M4 FUNNEL EXTRUDED HOLE 3-M4 FUNNEL (THIS SURFACE 凹) EXTRUDED HOLE (555.5) (THIS SURFACE 凹) M4 FUNNEL EXTRUDED HOLE 755.5...
  • Page 89 8. Supplement 12 Reference diagram for Packing (field supply) Unit: mm EPT SEAL 10±2 ADHESIVE SEPARATOR 1-11-1-2-14...
  • Page 90: Indoor Unit

    Indoor Unit SELECTING THE INSTALLATION SITE Type E1 1. S-160PE1R5B AVOID: areas where leakage of fl ammable gas may be expected. ● places where large amounts of oil mist exist. ● direct sunlight. ● locations near heat sources which may affect the ●...
  • Page 91 Front view Top view (Unit:mm) Control box Inspection hole TYPE (600 x 600) S-160PE1R5B 430 <Front> top of the unit for repair. Above 250cm n i l decreased. Fig. 1-11-2-1-2 INSTALLATION OF INDOOR UNIT POSITION OF SUPENSION BOLT i o j ●...
  • Page 92 2. Suspending the Indoor Unit Suspension bolt Depending on the ceiling type: Insert suspension bolts (Fig. 1-11-2-1-4) • Hexagonal nut Double nuts t s i n i l • support (Fig. 1-11-2-1-5). Hole-in-anchor Hole-in-plug Concrete Insert Fig.1-11-2-1-7 This shows an example of installation. Air outlet duct Bolt anchor Suspension bolt...
  • Page 93 To fasten the flare nuts, apply specified torque. See “HOW TO PROCESS TUBING” on page 1-11-2-1-6 for detail. Brazing for the gas tube of S-160PE1R5B. 1. Before cutting the gas tube, please loosen the flare nut of the liquid tube.
  • Page 94 4. Installing the Drain Pipe (1) Prepare standard hard PVC pipe (O.D. 32 mm) for the drain Drainage hole and use the supplied hose band to prevent water leaks. The PVC pipe must be purchased separately. The transparent drain part on the unit allows you to check Foam drain socket drainage.
  • Page 95 Caution Before Connecting Tubes Tightly HOW TO PROCESS TUBING (1) Apply a sealing cap or water-proof tape to prevent dust or Must ensure mechanical connections be accessible for water from entering the tubes before they are used. maintenance purposes. (2) Be sure to apply refrigerant lubricant (ether oil) to the inside 1.
  • Page 96 Taping the fl are nuts a fl o i t fl are nuts that were supplied with the unit, or else fl are nuts for Wind the white insulation tape around the fl are nuts at the gas R410A, R32 (type 2). The refrigerant tubing that is used must tube connections.
  • Page 97 Use insulated copper wire for fi eld wiring. Wire size varies with the total length of wiring. See “1-10. ELECTRICAL Type E1 WIRING” for details. S-160PE1R5B P-Q curve CAUTION Check local electrical codes and regulations before obtaining wire. Also, check any specified instructions or limitations.
  • Page 98 CHECKLIST AFTER INSTALLATION WORK Work List Content Possibility of Failure & Checkpoint Check Are the indoor units installed following the There is a possibility of light injure or loss of Installation content of the section “SELECTING THE property. INSTALLATION SITE”? on page 1-11-2-1-1. Is the earth leakage circuit breaker (all-pole switching function provided) installed? Is there any wrong installation of optional...
  • Page 99 APPENDIX Troubleshooting If your air conditioner does not work properly, first check the following points before requesting service. If it still does not work properly, contact your dealer or a service center. Indoor unit Symptom Cause Noise Sound like streaming water during Sound of refrigerant liquid fl...
  • Page 100 Tips for Energy Saving Avoid Do not block the air intake and outlet of the unit. If either is obstructed, the unit will not work well, and may be damaged. g i l n i l s l l n i l sun, it will take longer to cool the room.
  • Page 101 (8) Repair and maintenance to electrical components shall include initial safety checks and component inspection procedures. If a fault exists that could compromise safety, then no electrical supply shall be connected to the circuit until it is satisfactorily dealt with. If the fault cannot be corrected immediately but it is necessary to continue operation, an adequate temporary solution shall be used.
  • Page 102 DECOMMISSIONING CAUTION l a i i l i l l a s t i . s l c i t l l a . y l l i o l l a reclaimed refrigerant. l a i a l i a) Become familiar with the equipment and its operation.
  • Page 103: Type E3

    SELECTING THE INSTALLATION SITE Type E3 2. S-180PE3R5B, S-200PE3R5B, S-224PE3R5B AVOID: areas where leakage of flammable gas may be expected. places where large amounts of oil mist exist. direct sunlight. locations near heat sources which may affect the performance of the unit. locations where external air may enter the room directly.
  • Page 104 How to assemble the indoor unit How to separate the indoor unit 1. Remove the wire cover. 3. Remove the motor relay connector. 1. Attach the fan motor unit. (1) Loosen two screws. (1) Pass the bolts for the heat exchanger Remove two motor relay connectors.
  • Page 105 HOW TO INSTALL THE INDOOR UNIT High Static Pressure Ducted Type S-180PE3R5B, S-200PE3R5B, S-224PE3R5B Required Minimum Space for Installation and Service (1) Dimensions of suspension bolt pitch and unit Unit: mm 1,006 554 (Suspension bolt pitch) Inspection access (600×600) (Field supply) Min.
  • Page 106 Suspending the Indoor Unit Depending on the ceiling type: 1. Check the suspension bolt pitch. 2. Ensure that the ceiling is strong enough to support the weight of the unit. 3. To prevent the unit from dropping, firmly fasten the suspension bolts as shown in the figure below. Unit: mm Hole-in-anchor Hexagonal nut (field supply)
  • Page 107 • When brazing, must be cool the pipe by wet cloths after removing the insulation tube and the cover plate. • When brazing the gas tubing, cool the tubing with dampened shopcloths as you work, as shown in the figure below, to protect the unit’s thermistor rom the heat generated by brazing.
  • Page 108 2. Installing the Drain Pipe CAUTION (1) How to Connect Drain Port and Drain Hose First insert the supplied hose band into the drain port pipe. Then make sure the head of the screw is facing toward a technical engineer when placing the screw of the hose band at an upward angle.
  • Page 109 EXTERNAL STATIC PRESSURE SETTING Choose one of the methods (selection of “a”, “b”, “c” within the range of dotted line as shown in the flowchart below) and make settings. a. No setting changes: When using as it is factory preset at shipment. (If resetting after external static pressure setting once, it might be different from factory preset.) b.
  • Page 110 1-1. How to Set on PC Board 1. Turn off the power breaker to halt the supply of electricity to the PC board. 2. Open the lid of the electrical component box and confirm the location where the Select switch on the indoor unit control PCB is placed.
  • Page 111 1-3. Operating the High-spec Wired Remote Controller (CZ-RTC5B) 3. Select the “Code no.” by pressing the button. 20:30 (THU) Change the “Code no.” to “5D” by pressing the button (or keeping it pressed). START Detailed settings 20:30 (THU) Unit no. Code no.
  • Page 112 1-4. Indoor Fan Performance Cooling Heating Cooling Item code “ ” Heating Cooling Setting at shipment Heating Type 180 (External static pressure 60 Pa) (External static pressure 100 Pa) (External static pressure 150 Pa) 45 50 55 60 65 70 75 80 85 45 50 55 60 65 70 75 80 85 45 50 55 60 65 70 75 80 85 Air Volume (m...
  • Page 113 HOW TO PROCESS TUBING Cautions During Brazing Must ensure mechanical connections be accessible for maintenance Replace air inside the tube with nitrogen gas to prevent copper purposes. oxide film from forming during the brazing process. (Oxygen, The liquid tubing side is connected by a flare nut, and the gas tubing carbon dioxide and Freon are not acceptable.) side is connected by brazing.
  • Page 114 Two tubes arranged together NOT E Do not wind the armoring tape too tightly since this will decrease the Liquid tubing Gas tubing heat insulation effect. Also ensure that the condensation drain hose splits away from the bundle and drips clear of the unit and the tubing. Finishing the Installation Insulation After finishing insulating and taping over the tubing, use sealing putty...
  • Page 115 CHECKLIST AFTER INSTALLATION WORK □ Work List Content Check Possibility of Failure & Checkpoint Are the indoor units installed following the □ There is a possibility of light injure or loss of Installation content on page 1-11-2-2-1 property. “SELECTING THE INSTALLATION SITE”? Is the earth leakage circuit breaker □...
  • Page 116 APPENDIX Care: After a prolonged idle period Check the indoor and outdoor unit air intakes and outlets for Name of Parts blockage; if there is a blockage, remove it. Type E3 (HIGH STATIC PRESSURE DUCTED) Care: Before a prolonged idle period Operate the fan for half a day to dry out the inside.
  • Page 117 IMPORTANT INFORMATION REGARDING THE REFRIGERANT USED NOTE ■ See “ Outdoor Unit” under the Section 1-11. Installation Instructions. SERVICING CAUTION fi i l d i l i t r c fi an industry-accredited assessment authority, which authorizes their competence to handle refrigerants safely in accordance with an industry recognised assessment specifi...
  • Page 118 i t c l l i voltage and current permitted for the equipment in use. Intrinsically safe components are the only types that can be worked on while live in the presence of a fl ammable atmosphere. The test apparatus shall be at the correct rating. fi...
  • Page 119: Capacity Table

    5.82 16.7 5.40 230V-240V 18.1 18.1 5.39 17.8 17.8 6.00 16.6 16.6 5.88 14.9 14.9 5.58 13.9 13.9 5.16 S-160PE1R5B 50Hz 1phase U-160PZH2R5 19.5 14.8 5.51 19.3 14.7 6.12 18.0 14.2 6.00 16.4 13.5 5.70 15.3 13.1 5.28 (400V-415V (U-160PZH2R8) 21.0...
  • Page 120 -21°C -8°C 6°C 8°C 15°C Source Return Air 12.8 5.00 17.5 5.41 21.0 5.89 17.4 3.97 21.2 4.02 230V-240V S-160PE1R5B 50Hz 1phase U-160PZH2R5 11.8 5.31 16.5 5.72 20.0 6.20 16.4 4.28 20.2 4.33 (400V-415V (U-160PZH2R8) 50Hz 3phase) 10.8 5.62 15.5 6.03...
  • Page 121 2. TEST RUN 2. TEST RUN 2. TEST RUN 2-1. Preparing for Test Run ..................... 2-2. Precautions ....................... Indoor Units Caution ........................2-3. Test Run Procedure ....................2-4. Items to Check Before the Test Run ............... 2-5. 2-6. Test Run Using the Remote Controller ..............Contents of Remote Controller Switch Alarm Display ..........
  • Page 122: Test Run

    2-1. Preparing for Test Run Before attempting to start the air conditioner, check the following: (1) All loose matter is removed from the cabinet especially steel filings, bits of wire, and clips. (Power must be turned ON at least 12 hours before (2) The control wiring is correctly connected and all attempting test run) electrical connections are tight.
  • Page 123: Precautions

    2-2. Precautions Request that the customer be present when the test run is performed. At this time, explain the operation manual and have the customer perform the actual steps. OUTDOOR UNIT MAIN PCB (CR) Be sure to pass the manuals and warranty certificate to the customer. Check that the 230 –...
  • Page 124: Indoor Units

    Indoor Units 2-3. Caution This unit may be used in a single-type refrigerant system where 1 outdoor unit is connected to 1 indoor unit. The indoor and outdoor unit control PCB utilizes a semiconductor memory element (EEPROM). The settings required for operation were made at the time of shipment. Only the correct combinations of indoor and outdoor units can be used.
  • Page 125: Items To Check Before The Test Run

    2-5. Items to Check Before the Test Run (1) Turn the remote power switch ON at least 12 hours in advance in order to energize the crankcase heater. (2) Fully open the closed valves on the liquid-tube and gas-tube sides. 2-6.
  • Page 126: Contents Of Remote Controller Switch Alarm Display

    2-7. Contents of Remote Controller Switch Alarm Display Blinking: OFF: Wireless remote controller receiver display Wired remote Possible cause of malfunction control display Faulty remote controller Failure in receiving serial signal from remote controller's Disconnection/Contact failure of remote controller wiring indoor unit CHK(check) pins on the indoor unit control PCB are short circuited In the case of non-group control:...
  • Page 127 Blinking: OFF: Wireless remote controller receiver display Wired remote Possible cause of malfunction control display Faulty wiring connections of (ceiling) indoor unit panel Indoor unit fan motor locked Indoor unit fan motor trouble Indoor unit fan motor layer short (AC fan) Contact failure in thermostat protector circuit Faulty drain pump Timer and standby...
  • Page 128: System Control

    2-8. System Control System control refers to the link wiring connection for control of simultaneous-operation multi systems, group control, and main-sub remote controller control. 2-8-1. Basic wiring diagram Single type Be careful to avoid miswiring when connecting the wires. (Miswiring will damage the units.) (for 3-phase Outdoor unit) System address rotary switch Ground...
  • Page 129 2-8-2. Setting the Outdoor unit system addresses For basic wiring diagram (Set the system address: 1) SW 2 Outdoor unit control PCB SW 1 MODE pin System address rotary switch (Set to “0” at time of shipment) *MODE pin: factory setting is cooling operation mode.
  • Page 130 2-8-3. Automatic address setting using the remote controller Auto Address Setting from the High-spec Wired Remote Controller (CZ-RTC5B) Keep pressing the buttons simultaneously for 4 or more seconds. The “Maintenance func” screen appears on the LCD display. 20:30 (THU) Press the button to see each menu.
  • Page 131 Display During Auto Address Setting On the surface of outdoor unit control P.C. board * Do not short circuit the A.ADD pin again during auto address setting. LEDs 1 and 2 go out and address setting is interrupted. * When auto address setting is normally completed, both LEDs 1 and 2 go out. Blinks alternately In other cases, correct settings referring to the following table and perform auto address setting again.
  • Page 132 Checking the indoor unit addresses Use the remote controller to check the indoor unit address. CZ-RTC5B (High-spec wired remote controller) Keep pressing the buttons The “Simple settings” screen appears on the LCD display. simultaneously for 4 or more seconds. Select the “Unit no.” by pressing the The “Maintenance func”...
  • Page 133 2-8-4. Main-sub remote controller control Control using 2 remote controller switches Main-sub remote controller control refers to the use of 2 remote controllers to control 1 or multiple indoor units. (A maximum of 2 remote controllers can be connected.) Connecting 2 remote controllers to control 1 Indoor unit Remote controller Remote controller switch (main)
  • Page 134: Outdoor Units

    Outdoor Units 2-9. Test Run Procedure If there are duplicated system addresses, or if the MODE pin settings for the Nos. of the indoor units are not consistent, an alarm will occur and the system will *MODE pin: factory setting is cooling not start.
  • Page 135: Caution For Pump Down

    2-12. Caution for Pump Down Pump down means refrigerant gas in the system is returned to the outdoor unit. Pump down is used when the unit is to be moved, or before servicing the refrigerant circuit. How to perform Pump-Down (Refrigerant recovery) properly (1) Stop operation of the unit (cooling, heating etc.).
  • Page 136 – MEMO – 2-16...
  • Page 137 3. ELECTRICAL DATA 3-1. Outdoor Units (Electric Wiring Diagram) ..............3-2 3-2. Indoor Units (Electric Wiring Diagram) ..............3-4 Ducted Type High Static Pressure Ducted Type...
  • Page 138 3-1. Outdoor Units Electric Wiring Diagram U-160PZH2R5...
  • Page 139 Electric Wiring Diagram U-160PZH2R8 / U-180PZH2R8 / U-200PZH2R8 / U-224PZH2R8...
  • Page 140 3-2. Indoor Units Ducted Type S-160PE1R5B Electric Wiring Diagram...
  • Page 141 High Static Pressure Ducted Type S-180PE3R5B, S-200PE3R5B Electric Wiring Diagram...
  • Page 142 High Static Pressure Ducted Type S-224PE3R5B Electric Wiring Diagram...
  • Page 143 4. PROCESS AND FUNCTIONS 4-1. Control Functions ....................... 4 - 2 4-2. Outdoor Unit Control PCB (ACXA73-2859*, ACXA73-3030*, ACXA73-3028*) ..4-10 4-3. Outdoor Unit HIC Board (ACXA73-2760*, ACXA73-3104*) ........4-18 4-4. Indoor Unit Control PCB Switches and Functions ..........4-20...
  • Page 144: Control Functions

    4-1. Control Functions 1. Indoor Air Temperature Control The thermostat is switched on and off in accordance with T shown below. T= (Indoor air temperature) - (Temperature set with the remote controller) In the body thermostat mode Indoor air temperature = (Body sensor) - (Shift temperature *) (setting at factory shipment) In the remote controller thermostat mode Indoor air temperature = (Remote controller sensor) * Shift Temperature...
  • Page 145 1) Indoor Air Temperature Control By the control method, not only the thermostat is switched on and off, as explained section “1. Indoor Air Temperature Control ”, but also the frequency of the compressor's inverter is controlled in accordance with T and fluctuations in indoor air temperature.
  • Page 146 4) Condensation Temperature Control (cooling) This system control is performed to limit the inverter frequency in order to restrict high pressure’s abnormal increase and high-load operating prevention in the cooling mode. In accordance with the temperature of the outdoor heat exchanger temperature sensors (C1, C2), such controls are performed as to halting the operations of the indoor unit, decreasing the inverter frequency and restricting its increase, etc.
  • Page 147 6) Cooling Freeze Prevention Control The following control is performed during cooling operations (including dry mode operation), in accordance with whichever of the indoor heat exchanger temperatures (E1 or E2) is lower. (See the chart below.) (a) Frequency will not be decreased less than 6 minutes after thermostat ON. (b) The threshold value is increased in accordance with the indoor load (differences of temperature).
  • Page 148 8) Defrosting Control This control function removes frost that has adhered to the outdoor heat exchanger during the heating operation. The control is performed to prevent the deterioration of the heating capabilities attributed to the adherence of frost, and to prevent the crack or crush of pipes attributed to the accretion of ice. The following control is performed in accordance with the ambient temperature and the outdoor heat exchanger temperature sensor (C1).
  • Page 149 <U-180PZH2R8> Outdoor heat exchanger temperature sensor min (C1, C2) (°C) Ambient temperature -27.9 -5.1 -7.1 <U-200PZH2R8, U-224PZH2R8> Outdoor heat exchanger temperature sensor min (C1, C2) (°C) Ambient temperature -27.8 -6.6 -8.6 (c) Following satisfied condition is detected for accumulation of over 80 minutes. Outdoor heat exchanger temperature sensor min(C1, C2) <...
  • Page 150 10) Outdoor Unit's Electrical Expansion Valve Control The electrical expansion valve controls the amount of refrigerant that is allowed to flow in accordance with the operation status. The valve is adjusted in accordance with the discharge temperature (TD), the outdoor heat exchanger temperature sensor (C1), the suction temperature sensor (TS), and the indoor unit's heat exchanger temperature sensors (E1 and E2).
  • Page 151 12) Silent mode It is avilable to select one of 3 levels of silent mode as listed in the table below. Outdoor maintenance remote controller: Item code “05” (1: Silent level 1, 2: Silent level 2, 3: Silent level 3) Attention: Due to decrease of operating noise level, the air conditioner's capacity can be reduced.
  • Page 152 4-2. Outdoor Unit Control PCB U-160PZH2R5 (ACXA73-2859*) CN-FM_LO CN-FM_UP CN-OPT2 CN-OPT1 Outdoor air temp See next page (CN-TO) SILENT (CN-SILENT) Intermediate temperature sensor in heat exchanger (CN-C2) Comp discharge temp RC plug (CN-TD) (CN-RC) Suction temp (CN-TS) Inlet temperature sensor in heat exchanger (CN-C1) High-pressure...
  • Page 153 U-160PZH2R5 (ACXA73-2859*) PUMPDOWN STOP TEST LED1 LED2 A.ADD MODE 4-11...
  • Page 154 U-160PZH2R8, U-180PZH2R8 (ACXA73-3030*) CN-FM_LO CN-FM_UP High-pressure switch plug CN-OPT2 (CN-63PH) CN-OPT1 4WAY Valve (CN-HOT2) CN-RY Comp discharge temp (CN-TD) Inlet temperature See next page sensor in heat exchanger (CN-C1) Suction temp (CN-TS) Outdoor air temp (CN-TO) Intermediate temperature sensor in heat exchanger (CN-C2) MOV plug...
  • Page 155 U-160PZH2R8, U-180PZH2R8 (ACXA73-3030*) LED1 LED2 TEST MODE PUMPDOWN A.ADD STOP 4-13...
  • Page 156 U-200PZH2R8, U-224PZH2R8 (ACXA73-3028*) 4WAY Valve (CN-HOT1) CN-FM_LO CN-FM_UP High-pressure switch plug CN-OPT2 (CN-63PH) CN-OPT1 CN-RY Comp discharge temp (CN-TD) Inlet temperature See next page sensor in heat exchanger (CN-C1) Suction temp (CN-TS) Outdoor air temp (CN-TO) Intermediate temperature sensor in heat exchanger (CN-C2) MOV plug SILENT...
  • Page 157 U-200PZH2R8, U-224PZH2R8 (ACXA73-3028*) LED1 LED2 TEST MODE PUMPDOWN STOP A.ADD 4-15...
  • Page 158: Outdoor Unit Control Pcb (Acxa73-2859*, Acxa73-3030*, Acxa73-3028*)

    Outdoor Unit Control PCB (ACXA73-2859*, ACXA73-3030*, ACXA73-3028*) Explanation of Functions A. ADD pin (2P, Black) Auto address setting pin • Short-circuit this pin for 1 second or longer to automatically set the addresses at the indoor units that are connected to that outdoor unit and are within the same system.
  • Page 159 Table 4-1. Method of System Address Setting [SW2 (rotary, yellow), SW1 (2P DIP switch, black)] Outdoor system SW2 setting SW1 setting address No. (system address switch) 1P (10s-digit place) 2P (20s-digit place) 1 system only System controller Outdoor Outdoor Outdoor Outdoor Indoor Indoor...
  • Page 160: Outdoor Unit Hic Board (Acxa73-2760*, Acxa73-3104*)

    4-3. Outdoor Unit HIC Board U-160PZH2R5 (ACXA73-2760*) 4-18...
  • Page 161 U-160PZH2R8, U-180PZH2R8, U-200PZH2R8, U-224PZH2R8 (ACXA73-3104*) 4-19...
  • Page 162: Indoor Unit Control Pcb Switches And Functions

    4-4. Indoor Unit Control PCB Switches and Functions [Indoor unit control PCB] T10 (CN061): 6P plug (YEL) / Used for remote control operation. (Refer to the Remote Control Section.) Control items: (1) Start/stop input (2) Remote controller prohibit input (3) Start signal output (4) Alarm signal output EXCT (CN073): 2P plug (RED) / Can be used for demand control.
  • Page 163 Indoor Unit Control PCB C3937-840-1Y : S-160PE1R5B POWER LED EEPROM FAN DRIVE EXCT OPTION CHK Pin DISP JP001 ACXA73-3081* : S-180PE3R5B, S-200PE3R5B, S-224PE3R5B POWER LED (D002) EXCT (CN073) EEPROM (IC010) JP001 DISP (CN063) EMG (CN044) T10 (CN061) OC (CN040) CHK (CN062)
  • Page 164 – MEMO – 4-22...
  • Page 165 5. TROUBLE DIAGNOSIS 5-1. Contents of Remote Controller Switch Alarm Display .......... 5-2 5-2. Outdoor Unit Control Panel LED Display ..............5-4 5-3. PAC System Alarm Codes ..................5-5 5-4. Inspection of Parts (Outdoor Unit) ................5-32 5-5. Symptom: Thermostat in OFF continues or cycles OFF & ON too frequently ..5-33 5-6.
  • Page 166: Contents Of Remote Controller Switch Alarm Display

    5-1. Contents of Remote Controller Switch Alarm Display Blinking: OFF: Wireless remote controller receiver display Wired remote Possible cause of malfunction control display Faulty remote controller Failure in receiving serial Disconnection/Contact failure of remote controller wiring signal from remote controller's indoor unit CHK(check) pins on the indoor unit control PCB are short circuited In the case of non-group control:...
  • Page 167 Blinking: OFF: Wireless remote controller receiver display Wired remote Possible cause of malfunction control display Faulty wiring connections of (ceiling) indoor unit panel Indoor unit fan motor locked Indoor unit fan motor trouble Indoor unit fan motor layer short (AC fan) Contact failure in thermostat protector circuit Faulty drain pump Timer and standby...
  • Page 168: Outdoor Unit Control Panel Led Display

    5-2. Outdoor Unit Control Panel LED Display : ON : Blinking : OFF ) LED1 LED2 Display meaning After the power is turned ON (and automatic address setting is not in progress), no communica- tion with the indoor units in that system is possible. (Both ON) After power is turned ON (and automatic address setting is not in progress), 1 or more indoor units are confirmed in that system;...
  • Page 169: Pac System Alarm Codes

    5-3. PAC System Alarm Codes Alarms for outdoor units Alarm Alarm Meaning Code Remote Controller Reception Error Remote Controller Transmission Error Error in Indoor Unit Receiving Signal from Remote Controller (central) Error in Indoor Unit Receiving Signal from the Outdoor Unit Error in Indoor Unit Transmitting Signal to the Outdoor Unit Outdoor Unit Failed to Receive Serial Communication Signals from Indoor Unit Duplicate Indoor Unit Address Settings Error...
  • Page 170 Symptoms and Parts to Inspect Remote Alarm Eliminating controller Judgement conditions Judgement and correction contents condition of alarm alarm display Stops when temp. exceeds 1. Check refrigerant cycle (gas Abnormal discharge Recovery at restart temperature error leak). • Discharge temp. Alarm output on 5 pre-trips 2.Trouble with electronic detected at or...
  • Page 171 Check Prior to Auto Address Setting * If an outdoor unit displays an alarm, conduct this process after diagnosing the problem. 1 Auto Address Is the power of the indoor unit(s) and outdoor unit(s) on? Power on. Indoor/ Has the wiring of the indoor/outdoor control line been completed? outdoor Is it all connected? Connect the wiring.
  • Page 172 Mini VRF SYSTEM Trouble Diagnosis 4. Mini VRF System Alarm Codes E04 Error in Indoor Unit Receiving Signal from the Outdoor unit Error Detection Method When there is no communication within a 3-minute period from the outdoor unit. Or, judged an error when no reply comes from the outdoor unit.
  • Page 173 For information on the procedures for replacing the indoor unit’s control board, refer to the manual that is packaged with the indoor unit control PCB. Indoor Unit Control PCB C3937-840-1Y ACXA73-3081* : S-160PE1R5B : S-180PE3R5B, S-200PE3R5B, S-224PE3R5B POWER LED (D002) EEPROM (IC010) EXCT (CN073)
  • Page 174 • For information on the remote control’s detailed settings, refer to the Reference Materials. Indoor Unit Control PCB ACXA73-3081* : S-180PE3R5B, S-200PE3R5B, S-224PE3R5B C3937-840-1Y : S-160PE1R5B EEPROM (IC010) POWER LED (D002) EXCT (CN073) POWER LED...
  • Page 175 E16 Automatic Address Alarm (The total capacity of indoor units is too high.) Error Detection Method It is judged an error the total capacity of indoor units is too high or the total number of indoor units is too many. The total capacity of indoor units is too high.
  • Page 176 F06 Inlet Temperature Sensor (C1) in Heat Exchanger Trouble Error Detection Method In case of open or short • Error Diagnosis 1 Sensor Is the connector properly connected to PCB? Trouble Reconnect & check. Replace sensor. Is the resistor between the sockets infinity or 0 ohm? 2 Control Outdoor unit control PCB failure Replace PCB with a new one.
  • Page 177 F12 Compressor inlet Suction Temperature Sensor (TS) Trouble Error Detection Method It is judged an error when open circuit or short circuit. Error Diagnosis 1 Sensor Sensor connector is connected to PC board properly. Reconnect and check. Replace sensor. Resistance between sockets is infinity or 0 ohm. 2 Outdoor control Replace PC board because of outdoor control PC board failure.
  • Page 178 H01 Primary (input) Overcurrent Detected Error Detection Method • Primary current effective value detected overcurrent (trip current value). Trip current value HP = horse power HP = horse power 3-phase model 6.5 HP 7 HP 8 HP 9 HP 6.5 HP Single-phase model Heating Heating...
  • Page 179 ACXA73-2859* (U-160PZH2R5) (for single-phase outdoor Unit PCB) FUSE1-A H03 Primary Current CT Sensor (current sensor) Failure Error Detection Method It is judged an error based on the criteria listed below. • If 18A or greater is detected when the compressor is stopped (alarm triggered even if the connector is unplugged). •...
  • Page 180 H31 HIC Trouble Error Detection Method It is judged an error if the computer detects an error signal from the HIC. An error signal is issued by the HIC if abnormal heat occurs inside the HIC or if there is an overcurrent. However, it is judged an error in the same way if the signal line from the HIC is not connected properly or opened.
  • Page 181 Tester terminals HIC- HIC+ Resistance value (ohm) 1 k to 10 k 1 k to 10 k 1 k to 10 k 5 k to 20 k 20 k to 20 k to 20 k to 20 k to Tester terminals Resistance value (ohm) 20 k to 20 k to...
  • Page 182 L04 Outdoor Unit Address Duplication Error Detection Method It is judged an error when the identical self-address communication on the indoor and outdoor wirings is received over 5 times within 3 minutes. Error Diagnosis 1 System Are other outdoor units using a duplicate setting? address Installation When units are networked, first set the system address for each outdoor unit in the order...
  • Page 183 L18 4-way Valve Operation Failure Error Detection Method It is judged an error when during heating operation (Comp. ON), the highest detected temperature at an outdoor unit heat exchanger (C1) was 20°C or more above the outdoor air temperature (Air Temp.) continuously for 5 minutes or longer.
  • Page 184 P04 High Pressure Trouble Error Detection Method It is judged an error if the internal circuit of the high pressure switch is dead. The electronic circuitry of the high pressure switch is cut off if the pressure at the pressure sensor port of the high pressure switch reaches 3.80 MPa.
  • Page 185 3 Problem Prevent air short The intake temperature (ambient temperature) of the indoor unit is around the circuit. above 36°C. heat exchanger Clean the filter. The filter of the indoor unit is clogged. Replace the indoor fan (motor). The fan of the indoor unit is broken or the fan motor is faulty. 4 Blockage Is the outdoor unit’s electronic control valve operating correctly? in the...
  • Page 186 Mini VRF SYSTEM Trouble Diagnosis 4. Mini VRF System Alarm Codes P05 AC Power Supply Trouble Error Detection Method • Instantaneous blackout Zero-cross (waveform input of power supply) error • DC voltage charge failure • Error Diagnosis Note : The work involved in diagnosing each of the items is extremely dangerous, so turn the power off at the breaker before performing the tests.
  • Page 187 P13 Alarm Valve Open Error Detection Method Detection is performed only in the test run. When once detected or the test run finished without any error, the second detection will not be done. In case of forgetting to open a valve, P04 (high-pressure switch operational alarm) is occasionally preceded due to the following conditions.
  • Page 188 P15 Insufficient Gas Level Detected Abnormal Detection Method Alarm occurs in the following cases: • Compressor's current value shows lower than a certain value. • Compressor's discharge temperature exceeds 95°C. • Electronic expansion valve is fully opened. • The difference between indoor unit heat exchanger temperature and intake temperature is less than 4K. Error Diagnosis 1 Adjustment Recharge with...
  • Page 189 P16 Compressor Overcurrent Trouble Meaning of Alarm • Secondary current effective value detected the overcurrent (trip current value). 3-phase model (6.5HP – 9HP) : Trip current = 25.0 A Single-phase model (6.5HP) : Trip current = 27.0 A • Secondary current instantly detected overcurrent (trip current value). 3-phase model (6.5HP –...
  • Page 190 Mini VRF SYSTEM Trouble Diagnosis 4. Mini VRF System Alarm Codes 4 Check the Take measures. Outdoor air intake temperature is high. situation Correct May be caused by poor outdoor unit air flow (dirty or clogged heat exchanger, blocked discharge port, etc.) Prevent air short Air short circuit has occurred.
  • Page 191 Mini VRF SYSTEM Trouble Diagnosis 4. Mini VRF System Alarm Codes 9 Check the See what happens. Replace the HIC PC board and operate the unit. (Apply putty and HIC PC screws must not be loose) Does it operate normally? 10-1 boards 10 Check the...
  • Page 192 Mini VRF SYSTEM Trouble Diagnosis 4. Mini VRF System Alarm Codes P22 Outdoor Unit Fan Motor Trouble Error Detection Method • It is judged an error when the outdoor fan motor’s rotating signal cannot be detected normally. Error Diagnosis 1 Wiring Are the connectors “CN-FM_UP”...
  • Page 193 P29 Lack of INV compressor wiring, INV compressor actuation failure (including locked), DCCT failure Error Detection Method Abnormal current is detected at DCCT before start-up. • Start-up failed during overcurrent and/or step-out detected. • • Open-wire of compressor and/or backspin detected. •...
  • Page 194 ■ Outdoor Unit Control HIC PCB ACXA73-2760* : (U-160PZH2R5) ACXA73-3104* : (U-160PZH2R8, U-180PZH2R8, (Single-phase outdoor unit HIC PC board) U-200PZH2R8, U-224PZH2R8) (3-phase outdoor unit HIC PC board) 5-30...
  • Page 195 Mini VRF SYSTEM Trouble Diagnosis 4. Mini VRF System Alarm Codes P31 Group Control Error Error Detection Method • Other indoor unit alarms within the group. 1 Other indoor Survey the indoor unit that alarms other than “P31” in the indoor unit group and specify the unit causes of failure.
  • Page 196: Inspection Of Parts (Outdoor Unit)

    Resistance between pin 5 and pins 1 through 4 should be approximately 46 ohm for all. (If the result is 0 ohm then replace the coil.) (2) Outdoor Unit Fan Motor Model No. Part No. (Panasonic) Part No. U-160PZH2R5, U-160PZH2R8, L6CBYYYL0296...
  • Page 197: Symptom: Thermostat In Off Continues Or Cycles Off & On Too Frequently

    Mini VRF SYSTEM 6. Symptom: Thermostat in OFF continues or Trouble Diagnosis cycles OFF & ON too frequently 5-5. Symptom: Thermostat in OFF continues or cycles OFF & ON too frequently How to detect abnormality • Abnormality does not occur. Protective function can be checked when the outdoor maintenance remote controller is connected.
  • Page 198: Table Of Thermistor Characteristics

    5-6. Table of Thermistor Characteristics (1) Outdoor Air Temp. (TO) Sensor, Intake Temp. (TS) Sensor, Heat Exchanger Temp. (C1) Sensor, Heat Exchanger Temp. (C2) Sensor -20 -15 -10 Temperature ( C) Temperature ( C) (2) Discharge Temp. (TD) Sensor 90 100 110 Temperature ( C) 5-34...
  • Page 199: How To Remove The Compressor

    5-7. How to Remove the Compressor Pay careful attention to prevent water or foreign objects from entering into the refrigerant tubing when removing or installing the compressor. Removing 1.After collecting the refrigerant in the system, replace nitrogen gas from the service port of the gas tubing valve. 2.Remove the sound absorbing material protecting the compressor.
  • Page 200: How To Remove The Electrical Component Box

    5-8. How to Remove the Electrical Component Box Removing 1.Remove the front panel and inspection panel from the outdoor unit. 2.Remove all local wires connected to the electrical component box. 3.Remove the wires (temperature sensor, coils of every sort of valve, pressure switch, fan motor and wires for connecting compressor) connected to the electrical component box in the unit.
  • Page 201: Symptom: Thermostat In Off Continues Or Cycles Off & On Too Frequently

    Mini VRF SYSTEM 6. Symptom: Thermostat in OFF continues or Trouble Diagnosis cycles OFF & ON too frequently How to detect abnormality Abnormality does not occur. Protective function can be checked when the outdoor maintenance remote controller is • connected. Error Diagnosis Adjust setting Indoor control...
  • Page 202 – MEMO – 5-38...
  • Page 203 6. OUTDOOR UNIT MAINTENANCE REMOTE CONTROLLER In the case of CZ-RTC4 6-1. Overview ........................6-2 6-2. Functions ........................6-2 6-3. Normal Display Operations and Functions ............. 6-3 6-4. Monitoring Operations: Display of Indoor Unit and Outdoor Unit Sensor Temperatures ......................6-8 6-5.
  • Page 204: Overview

    6-1. Overview What is the outdoor unit maintenance remote controller? Beginning with the DC-INV series of outdoor units, nonvolatile memory (EEPROM) is used in the outdoor unit PCB. In this way, the setting switches that were located on earlier PCBs have been converted to EEPROM data. This remote controller is an outdoor unit maintenance tool that is used to make and change the EEPROM set- tings.
  • Page 205: Normal Display Operations And Functions

    6-3. Normal Display Operations and Functions Normal display functions • Connect the special service checker wiring to the outdoor unit PCB. The connection is shown in the figure below. When connecting the special service Outdoor unit PCB checker wiring to the remote controller (3P, BLU) CZ-RTC4, cut out the wire as shown in the Special service Relay connector figure below because the connector of the...
  • Page 206 All units start/stop (Fig. 6-1) <Operation> (Start/Stop operation) button can be used to start and stop all the indoor units. • T he LED illuminates if any indoor units is operating. • T he LED blinks if an alarm at any of the operating indoor units occurs. Cooling/heating change (Fig. 6-1) NOTE Cooling and heating mode changes are only available when all indoor units are stopped. Fig.
  • Page 207 n Display (functions) • Use the temperature setting buttons to change the item code. (1) Item code (2) Item Remarks Outdoor unit alarm Alarm code display No. of connected indoor units Quantity Unit Nos. of connected indoor unit 7-segment display Operating status of indoor unit 7-segment display Thermostat ON status of indoor unit 7-segment display No.
  • Page 208 (3) XX-YY R.C. Locations where (1), (2), and (3) are displayed as Displays the outdoor unit sub-bus address which is shown in Fig. 6-4. currently selected. XX = Outdoor system address on main bus line (1 – 30) YY = Outdoor unit sub-bus address (1 – 8) “1” appears when there is only 1 outdoor unit. Fig.
  • Page 209 n 7-segment, 4-digit display for remote controller timer display The connected unit Nos. are displayed as shown below, using the 7-segment 4-digit ( ) display and the colon.  Display for unit Nos. 1 – 20 Not lit Not lit Not lit Not lit Meaning of display colon...
  • Page 210: Monitoring Operations: Display Of Indoor Unit And Outdoor Unit Sensor Temperatures

    6-4. Monitoring Operations: Display of Indoor Unit and Outdoor Unit Sensor Temperatures <Operating procedure> (1) Press and hold the (Check) button and buttons simultaneously for 4 seconds or longer to engage temperature monitor mode. During temperature monitoring, is illuminates. (The display and operations are the same as for monitor mode using the indoor unit remote controller.) (2) Press the...
  • Page 211 ■ Display of unit No. 1 (main unit) Item code Meaning of Code Indoor unit data Indoor unit intake temp. Indoor unit heat exchanger temp. (E1) Indoor unit heat exchanger temp. (E2) – – – – Outdoor unit data Discharge temp. (TD) –...
  • Page 212: Monitoring The Outdoor Unit Alarm History: Display Of Outdoor Unit Alarm History

    6-5. Monitoring the Outdoor Unit Alarm History: Display of Outdoor Unit Alarm History * Displays outdoor unit alarms only. Does not display indoor unit alarms. * Check the indoor unit alarm histories separately using the indoor unit remote controllers or other control device. <Operating procedure>...
  • Page 213: Settings Modes: Setting The Outdoor Unit Eeprom

    6-6. Settings Modes: Setting the Outdoor Unit EEPROM 2WAY SYSTEM 6. Mode Settings  Setting mode 1 Outdoor Unit Maintenance Remote Controller <Operating procedure> Press and hold the (Check) button and Display of fi rst 3 digits (Ventilation) button simultaneously for 4 seconds or longer.
  • Page 214 Never use the DN code unlisted in the following table. (P) : Factory preset mode Item Setting No. 1=Silent mode 1 (P) Outdoor fan silent mode 2=Silent mode 2,,,,, 3=Silent mode 3 Capacity matching ignored 0=Invalid (P) 1=Valid 0=Invalid 1=stop for 2 hours and drive for 20 minutes constantly 2=stop for 20 minutes and drive for 20 minutes constantly Indoor unit drain pump forced operation 3=Drive constantly...
  • Page 215 7. REMOTE CONTROLLER FUNCTIONS SECTION 7-1. Simple Settings Function .................... 7-2 7-2. List of Simple Setting Items ..................7-4 7-3. Detailed Settings Function ..................7-5 7-4. List of Detailed Setting Items ..................7-7 7-5. Simple Setting Items....................7-10 7-6. Detailed Setting Items ....................7-12 7-7.
  • Page 216: Simple Settings Function

    7-1. Simple Settings Function • This allows the filter lifetime, operating mode priority change, central control address, and other settings to be made for an individual or group- control indoor unit to which the remote controller used for simple settings is connected. When simple settings mode is engaged, operation stops at the individual or group-control indoor unit to which the remote controller for simple settings is...
  • Page 217 <Procedure of CZ-RTC5B> 20:30 (THU) START Fig. 7-2 3 Select the “Code no.” by pressing the button. Change the “Code no.” by pressing the 1 Keep pressing the button. buttons simultaneously for 4 or more seconds. The “Maintenance func” screen appears on the Simple settings 20:30 (THU) LCD display.
  • Page 218: List Of Simple Setting Items

    7-2. List of Simple Setting Items Setting data Item code Item Description 0000 Not displayed 0001 150 hours Filter sign ON time 0002 2,500 hours (filter life time) 0003 5,000 hours 0004 10,000 hours 0005 Use the filter clogging sensor. 0000 Standard (setting at time of shipping) Degree of filter fouling Highly fouled...
  • Page 219: Detailed Settings Function

    7-3. Detailed Settings Function • This allows the system address, indoor unit address, and other settings to be made for the individual or group-control indoor unit to which the remote controller used for detailed settings is connected. When detailed settings mode is engaged, operation stops at the individual or group-control indoor unit where the remote controller used for detailed settings is connected.
  • Page 220 <Procedure of CZ-RTC5B> 20:30 (THU) START Fig. 7-4 3 Select the “Code no.” by pressing the button. Change the “Code no.” by pressing the 1 Keep pressing the button (or keeping it pressed). buttons simultaneously for 4 or more seconds. The “Maintenance func” screen appears on the Detailed settings 20:30 (THU) LCD display.
  • Page 221: List Of Detailed Setting Items

    7-4. List of Detailed Setting Items Setting data Item Item code Description Description Description 0000 0001 0002 Ducted (E1) 0006 High Static Pressure 0003 0005 Type Ducted (E3) 0007 0008 0010 0011 0001 0003 0005 0007 0009 0011 Indoor unit 0012 0015 0017...
  • Page 222 Setting data Item code Item Description 0000 5 minutes Forced thermostat ON (1B) 0001 4 minutes –10°C –010 –9°C –009 Cooling discharge –8°C –008 temperature shift 0010 10°C –10°C –010 –9°C –009 Heating discharge –8°C –008 temperature shift 0010 10°C 0001 ±...
  • Page 223 Setting data Item code Item Description None 0000 Ventilation fan operation 0001 Ventilation fan operated by remote controller. 0000 Not used. (Body sensor is used.) Wired remote controller Remote controller sensor is used. sensor 0001 Normal (displayed) 0000 “Operation change control in progress”...
  • Page 224: Simple Setting Items

    7-5. Simple Setting Items Item code Item Description Filter sign ON time setting Changes the indoor unit filter lifetime when a high-performance filter or (filter lifetime) other optional product is installed. Reduces the filter sign ON time to 1/2 of the standard time (setting at the Degree of filter fouling time of shipping) for cases when filter fouling is more severe than normal.
  • Page 225 When the operating mode at the priority remote controller is changed, the operating modes of other remote controllers change as shown below. Mode change at priority remote controller Operating modes at other remote controllers Current mode New mode Current mode New mode Cooling or dry Heating...
  • Page 226: Detailed Setting Items

    7-6. Detailed Setting Items Item code Item Description Unit type Set when the indoor unit EEPROM memory is replaced during servicing. Indoor unit capacity System (outdoor unit) These are not set at the time of shipping from the factory. address These must be set after installation if automatic address setting is not Indoor unit address performed.
  • Page 227 Item code Item Description 1F (Upper limit) Cooling 20 (Lower limit) This setting changes the temperature range (upper limit and lower 21 (Upper limit) Change to the Heating limit) which is set from the remote controller or central control device. 22 (Lower limit) remote control The set upper limit must be greater than or equal to the lower limit.
  • Page 228 (Continued from previous page) Item code Item Description Heat exchanger The heat exchanger temperature control point for prevention of cold temperature for cold air air discharge during heating operation can be changed. discharge The indoor unit PCB optional output for the fan can be switched Fan output switching according to the purpose of use.
  • Page 229: Remote Controller Servicing Functions

    7-7. Remote Controller Servicing Functions • The remote controller includes a number of servicing functions. Use these as needed for test runs and inspections. Timer Remote Controller CZ-RTC4 Fig. 7-5 List of Servicing Functions Functions Description Button operation Reset operation Unit status Operation with forced Press and hold the...
  • Page 230 ■ High-spec Wired Remote Controller CZ-RTC5B Display of "maintenance function" screen 1 Keep pressing the buttons simultaneously for 4 or more seconds. Maintenance func 20:30 (THU) The “Maintenance func” screen appears on the 1. Outdoor unit error data LCD display. 2.
  • Page 231: Test Run Function

    2. Test Run Function Remote Controller Functions 7-8. Test Run Function Operates the unit with the thermostat forced ON. <Procedure of CZ-RTC4> Press and hold the button for 4 seconds or ° longer. ° “ ” appears on the remote controller LCD display (Fig.
  • Page 232 <Procedure of CZ-RTC5B> 1 Keep pressing the buttons simultaneously for 4 or more seconds. 20:30 (THU) The “Maintenance func” screen appears on the TEST LCD display. Maintenance func 20:30 (THU) START 1. Outdoor unit error data 2. Service contact 3. RC setting mode 4.
  • Page 233 Sensor Temperature Display Function (displayed regardless of whether unit is operating or stopped) The procedure below displays the sensor temperatures from the remote controller, indoor unit, and outdoor unit on the remote controller. <Procedure of CZ-RTC4> 1 Press and hold the buttons simultaneously for 4 seconds or longer.
  • Page 234 <Procedure of CZ-RTC5B> 1 Keep pressing the buttons simultaneously for 4 or more seconds. The “Maintenance func” screen appears on the 20:30 (THU) LCD display. Maintenance func 20:30 (THU) 1. Outdoor unit error data START 2. Service contact 3. RC setting mode 4.
  • Page 235 Automatic address setting <Procedure of CZ-RTC5B> 1 Keep pressing the buttons simultaneously for 4 or more seconds. 20:30 (THU) The “Maintenance func” screen appears on the LCD display. 2 Press the button to see each START menu. If you wish to see the next screen instantly, press button.
  • Page 236 Check of ECONAVI Operational Status The status of ECONAVI operation can be checked instantly. It is available to check the operation when installing the indoor unit. <Procedure of CZ-RTC5B> Keep pressing the buttons simultaneously for 4 or more seconds. 20:30 (THU) Status info.
  • Page 237 8. HOW TO INSTALL THE WIRELESS REMOTE CONTROLLER RECEIVER Important Safety Instructions ....................8-2 Optional Controller (Remote Controller) ................8-3 8-1. Names and Operations ....................8-3 8-2. Installing Batteries .......................8-5 8-3. Setting the Current Time ....................8-5 8-4. Operation ........................8-6 8-5. Timer Operation ......................8-7 8-6.
  • Page 238: Important Safety Instructions

    Important Safety Instructions WARNING Installation Precautions • Do not install yourself Installation should always be performed by your dealer or a professional service provider. Electric shock or fire may result if an inexperienced person performs any installation or wiring procedures incorrectly.
  • Page 239: Optional Controller (Remote Controller)

    Optional Controller (Remote Controller) Wireless Remote Controller CZ-RWS3 1 remote controller can control a group of up to 8 indoor units. (See page 8-8) 8-1. Names and Operations REMOTE CONTROLLER 14. Filter button Displays the operation status. Press to turn off the filter lamp on 1.
  • Page 240 Screen display 13 14 15 3 Appears when nanoe™ X is being 10 Indicates the fan speed. set to ON. 11 Displays the selected operation 4 Displays the present time. mode. (AUTO /HEAT 5 Timer program indication /COOL /FAN : The indoor unit starts 12 Energy saving operation is in operation at the programmed time.
  • Page 241: Installing Batteries

    NOTE If a heat pump (2WAY) type is being used, it will beep twice and the operating lamp will light up on the display; if the timer and standby lamps blink alternately, a conflict between the heating and cooling exists, so the unit cannot operate in the desired mode.
  • Page 242: Operation

    8-4. Operation Hold the remote controller with your hand and point its transmitter at the receiver. Power: Turn on the circuit breaker beforehand, referring to the operating instructions for the unit. 1. Press 2. Press to select the operation mode. •...
  • Page 243: Timer Operation

    8-5. Timer Operation • When setting the timer, make sure the current time on the remote controller is accurate. • The timer’s clock can only be set when the display of the remote controller is ON. • After setting the timer, put the remote controller for in a place where its signal will reach the receiver of the indoor unit. 1.
  • Page 244: Lock Individual Flap

    8-6. Lock Individual Flap (Supported models: 4-way ceiling cassette type) You can set the flap for each air outlet individually according to the room condition. • Even if the flap setting is changed with (Page 8-6), the flap directions set here are not changed. 1.
  • Page 245: Using The Remote Controller

    8-8. Using the Remote Controller • Hold the remote controller with your hand and point its transmitter at the receiver. When the signal is received properly, it will beep. • Signals can travel a direct distance of 6 metres. This distance should be used only as a guide. It depends on battery strength. •...
  • Page 246 Checking Addresses 1. Press with one end of an unfolded paper clip Address (or a similar object that can fit). • Its current address appears on the display for 5 seconds. • If this address corresponds to the address of a receiver, the buzzer sounds.
  • Page 247 Use [Emergency Operation] in the following situations when there is an urgent need. When the remote controller’s batteries have failed. When the remote controller is broken. When the remote controller is lost. *See the following figures regarding Emergency button. 1. Press [Emergency Operation] of the receiver.
  • Page 248: Miscellaneous Settings

    8-11. Miscellaneous Settings A variety of changes can be made to settings, depending on the indoor unit being used. Operation mode indicator, time display (24 hour, AM/PM), heating maximum temperature These settings are saved in nonvolatile memory in the remote controller, so even when its batteries are changed, the settings do not have to be made again.
  • Page 249: Setting

    8-13. nanoe™ X Setting 1. Press during operation. nanoeX • You can toggle between ON and OFF each time you press nanoeX • “ ” is displayed when this setting is ON. • When the nanoe™ X setting is ON, “nanoe” (atomised water particle) is released from the indoor unit while in operation (Cool, Dry, Heat, Fan, Auto).
  • Page 250: Temperature Automatic Return

    8-17. Temperature Automatic Return You can restore the changed temperature to the originally set temperature automatically after a specified time elapses. • Set the time and temperature for each operation mode. 1. Press at the Operation mode Temperature same time for 4 seconds or longer. •...
  • Page 251: Troubleshooting

    8-18. Troubleshooting Before requesting service, please check the followings. Problem Cause Solution The power to the indoor unit is not ON. Make sure the power to the indoor unit is ON. The unit doesn’t work even when is pressed on the Are the remote controller’s batteries dead? Change the batteries.
  • Page 252: Optional Controller (Remote Controller)

    2. Wireless Remote Controller Optional Controller (Remote Controller) Wireless Remote Controller CZ-RWSC3 / CZ-RWSK2 One remote controller can control a group of up to eight indoor units. 8-19. Names and Functions REMOTE CONTROLLER 15. Sensor button Use this button to activate the Displays the operation status.
  • Page 253 2. Wireless Remote Controller RECEIVER CZ-RWSC3 ADDRESS 1 1. Receiver Receives the signal sent from the ADDRESS 2 remote controller. ADDRESS 3 REM SUB/MAIN 2. Emergency Display lamps operation button When an error occurs, one of the lamps flashes. When a display lamp is blinking, refer to "...
  • Page 254: Installing Batteries

    8-20. Installing Batteries 1. Remove the cover. 2. Insert two LR03 size batteries. Put the batteries in with the polarity [+/–] as shown in the figure. 3. Gently insert one end of an unfolded paper clip (or a similar object that can fit) into the Reset hole and press the Reset button inside the hole, then put the cover back on.
  • Page 255: Operation

    8-22. Operation , Dry , Cool , Fan Auto , Heat Models that only provide the cooling function cannot operate in the auto or heating modes. Power: Turn on the power of the indoor unit at least 14 hours before operation. 1.
  • Page 256: Timer Operation

    8-23. Timer Operation When setting the timer, make sure the current time on the remote controller is accurate. The timer’s clock can only be set when the display of the remote controller is ON. After setting the timer, put the remote controller in a place where its signal will reach the receiver of the indoor unit.
  • Page 257: Adjusting The Wind Direction

    8-24. Adjusting the Wind Direction CZ-RWSC3 The available functions differ depending on the indoor unit being used. The wind direction cannot be set via remote controller for any models other than those noted below. For more information, please refer to the users’ manual that came with your indoor unit. 8-25.
  • Page 258: Using The Remote Controller

    8-26. Using the Remote Controller Point the transmitter of the remote controller at the receiver. When the signal is received correctly it will beep once. (It beeps twice only when the unit starts operating.) The signal can be received at a distance of about 6 meters. This distance should be used only as a guide. It depends on battery strength.
  • Page 259 Control of 2WAY SYSTEM 2. Wireless Remote Controller Matching up Addresses Setting Remote Controller Addresses 1. If you press at the same time, “ ” will blink. 2. While holding down, every time you press , it cycles from ALL 3…...
  • Page 260: Emergency Operation

    2. Wireless Remote Controller 8-29. Emergency Operation Use [Emergency Operation] in the following situations when there is an urgent need. When the remote controller’s batteries have failed. When the remote controller is broken. When the remote controller is lost. CZ-RWSC3 Start : press [Emergency Operation] of the receiver.
  • Page 261: Miscellaneous Settings

    8-30. Miscellaneous Settings A variety of changes can be made to settings, depending on the indoor unit being used. Operation mode indicator, time display (24 hour, AM/PM), Heat Max Temp • (These settings are saved in nonvolatile memory in the remote controller, so even when its batteries are changed, the settings do not have to be made again.) •...
  • Page 262: Before Requesting Service

    2. Wireless Remote Controller 8-31. Before Requesting Service Before requesting service, please check the followings. Solution The power to the indoor unit is not ON. Make sure the power to the indoor unit is ON. The unit doesn’t work even when is pressed on the Are the remote controller’s batteries dead?
  • Page 263: Wiring For The Receiver

    Wiring for the Receiver 8-32. Common to All Models 1. Installation Location for the Receiver The wireless remote controllers use a very weak infrared light for its signal, which can result in the signal not being received because of the following influences, so take care in where the unit is installed. •...
  • Page 264 Installation when setting Main/Sub for the remote controller and the receiver  Using 1 indoor unit  Using more than 1 indoor unit Installation example RC wiring ( field supply) • No polarity Terminals for RC wiring RC wiring (field supply) •...
  • Page 265: Rwsc3, Cz-Rwrc3

    8-33. CZ-RWSC3, CZ-RWRC3 Dimensions Installation Instructions Part Names Unit: mm (1) Light receiving section Receives signals. (2) Emergency operation button Starts/Stops emergency operation. OPERATION TIMER STANDBY (3) Indication lamp FILTER Indicates operation status. Read before installation This receiver must be installed by the sales dealer or installer. These instructions are all you need for most installation sites and CAUTION maintenance conditions.
  • Page 266 2. Wireless Remote Controller 2. Installing the Receiver Remove the bottom case. Attention Mounting the bottom case  Tighten the screws securely until the screw heads touch the bottom case. (Otherwise, loose screw heads may hit the PCB and cause malfunction when mounting the top case.) ...
  • Page 267 2. Wireless Remote Controller 3. Wiring the Receiver Wiring for the receiver  Wiring diagram  Type of wiring Receiver Indoor unit Use cables of 0.5 to 1.25 mm  Total wire length: 400 m or less RC wiring (fi eld supply) (The wire length between indoor •...
  • Page 268 Control of 2WAY SYSTEM 2. Wireless Remote Controller 4. Setting Address Switches  Main/Sub setting  Address setting Remove the top case of the receiver for setting. Main/Sub setting  Use this to set Main/Sub for the remote controller and the receiver. Switch ...
  • Page 269 8-34. Common to All Models 1. The Self-Diagnosis Function Display and What is Detected  The “Alarm Display” shown in the table below expresses the alarm contents displayed when the wired remote controller is connected. For how to handle the alarms, see installation instructions of indoor units, “Service Manual”, “Test Run Service Manual”.
  • Page 270 3. Setting Up Remote Controller Functions The functions of the wireless remote controller can be set on site. (These settings are saved in nonvolatile memory in the remote controller. Therefore, the settings do not revert to the defaults even when its batteries are changed.) NOTE Only service personnel should make the settings because the operation of the air conditioner may be affected, depending on the settings made.
  • Page 271 Auto Address Set the Auto Address for each O/D unit no. (outdoor unit number) Select the O/D unit no. for Auto Address. 1. Press for 4 seconds or longer. • “ “ starts blinking and the setting screen is displayed. 2.
  • Page 272 Making Settings (Do with unit stopped) (1) Holding down the swing/flap ( ) + OFF timer ) + mode select ( ) buttons at the same time for 4 or more seconds will open the setting screen. (See figure below.) (2) Use the Temperature setting buttons ( ) to select the number of the item to be set.
  • Page 273 Test Operation Preparation: Turn on the circuit breaker of units and then turn the power on. After the power is turnedon, remote controller operation is ignored for approx. 1 minute because setting is being made. This is not malfunction. (Contents received while setting are disabled.) 1.
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