Page 1 Add: Hisense Information Industry Park 218,Qianwangang Road, AVWT-76~96FESRA Qingdao Economic Development Zone,China Tel:+86-532-80879968 Fax:+86-532-80875929 AVWT-114~154FESSA Http: //www.hisensehitachi.com AVWT-170~454FESZA E-mail: export@hisensehitachi.com Specifications in this catalogue are subject to change without notice,in order that Hisense may bring the latest innovations to their customers. TC1 2017007A TC1 2017007A...
Page 2 IMPORTANT NOTICE AND SAFETY PRECAUTIONS Hisense pursues a policy of continuing improvement in design and performance of products. ● The right is therefore reserved to vary specifications without notice Hisense cannot anticipate every possible circumstance that might involve a potential hazard.
Page 3 SAFETY SUMMARY < Signal Words > Signal words are used to identify levels of hazard seriousness. ● Definitions for identifying hazard levels are provided below with their respective signal words DANGER : DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury.
Page 4 SAFETY SUMMARY DANGER Do not perform installation work, refrigerant piping work, drain pump, drain piping and electrical wiring ● connection without referring to our installation manual. If the instructions are not followed, it may result in a water leakage, electric shock or a fire. Use the specified non-flammable refrigerant (R410A) to the outdoor unit in the refrigerant cycle.
Page 5 SAFETY SUMMARY WARNING Do not use any sprays such as insecticide, lacquer, hair spray or other flammable gases within ● approximately one (1) meter from the system. If circuit breaker or fuse is often activated, stop the system and contact your service contractor. ●...
Page 6 NOTICE Do not install the indoor unit, outdoor unit, remote control switch and cable within approximately 3 meters from strong electromagnetic wave radiators such as medical equipment. Supply electrical power to the system to energize the oil heater for 12 hours before startup after a long shutdown.
Page 7 - CONTENTS - 1. Connectable Outdoor Units and Working Range ............1 1.1 Models of Outdoor Unit .................... 1 1.2 Various Indoor Units and Combinations ..............2 1.3 Combination(Standard Type) ..................3 1.4 Communication System ................... 4 1.5 Piping System ......................5 1.6 Operating Range .......................
Page 8 10.1 Piping Materials ...................... 101 10.2 Flare and Connector ....................104 10.3 Caution about outdoor unit Installation ..............105 10.4 Piping Connection ....................107 11. Electrical wiring ......................117 11.1 General Inspection ....................117 11.2 Wiring ........................118 11.3 Electrical Wiring for Outdoor Unit ................. 120 11.4 Electrical Wiring Connection of Indoor Unit, Outdoor Unit and Switch Box ..
Page 9 1.1 Models of Outdoor Unit Base Unit Capacity (HP) Model 76 (8) Model 96 (10) Model 114 (12) Model 136 (14) Model 154 (16) Models AVWT-76FESRA AVWT-96FESRA AVWT-114FESSA AVWT-136FESSA AVWT-154FESSA Model 76~96 Model 114 ~154 [Combined module] Capacity (HP) Model 170 (18)
Page 10 (Note) Outdoor unit of Models 170~454 consists of 2~3 base units in the combination pattern as given in the table above, and any combination pattern other than specified in the table is unacceptable. Model 170 Model 190~212 Model 232~308 Model 324~340 Model 364~398 Model 420~454 1.2 Various Indoor Units and Combinations...
Page 11 1.3 Combination(Standard Type) Able to Connect a Set of Outdoor Unit with up to 64 Indoor Units Utilizing an inverter control, a wide range of operation capacity control is also available. A maximum total combination horsepower of 140% and a minimum total combination horsepower of 50% can be chosen by combination of the indoor units when compared with the nominal outdoor unit capacity.
Page 12 1.4 Communication System Hisense Centralized Control System Hisense centralized control system can realize centralized monitoring and control of all air conditioners through the computer, the system has powerful functions and is simple to operate, a maximum of 2048 outdoor units and 4096 indoor units can be monitored and controlled by the system.
Page 13 AVWT-232FESZA AVWT-250FESZA AVWT-272FESZA AVWT-290FESZA AVWT-308FESZA Outdoor AVWT-96FESRA AVWT-114FESSA AVWT-136FESSA AVWT-114FESSA AVWT-136FESSA AVWT-136FESSA AVWT-154FESSA AVWT-154FESSA Unit A Combination Unit Outdoor AVWT-76FESRA AVWT-76ESRA AVWT-76FESRA AVWT-114FESSA AVWT-114FESSA AVWT-136FESSA AVWT-136FESSA AVWT-154FESSA Unit B Piping Connection Kit HFQ-M202F HFQ-M212F Low Pressure 8.6 8.6 8.6 8.6 1.75...
Page 14 ● Piping Size for AVWT-324FESZA to AVWT-454FESZA (Triple Units Combination) < Figure for AVWT-364FESZA > (Indoor Unit on Left Side) (Indoor Unit on Right Side) Outdoor Unit A Outdoor Unit B Outdoor Unit C Outdoor Unit C Outdoor Unit B Outdoor Unit A To Indoor Units To Indoor Units...
Page 15 ① Branch pipe after First Branch ● Branch Pipe (Optional Parts) < Line Branch > First Branch Pipe Diameter and Branch Pipe after First Branch Outdoor Unit (kBtu/h) Model High 76 to 96 HFQ-M282F Pressure Pressure Liquid Total Indoor Unit Model 114 to 154 HFQ-M452F...
Page 16 For Heat Recovery System < Manifold Pipe (Models: HFQ-M202F, HFQ-M212F, HFQ-M302F) > [ Installation Work ] ■ Piping Connection Size Piping shall be supported with adequate space. The ends of the branch pipes are finished as Bent pipes and bypass piping (horizontal loop) shown in the following figures. Cut the end of shall also be installed in order to absorb piping the pipe to meet with the pipe size.
Page 17 < Line Branch (Models: HFQ-M142F, HFQ-M282F, HFQ-M452F, HFQ-M562F, HFQ-M692F, HFQ-M902F > [ Installation Work ] Reducer for Reducer for Low Pressure High Pressure Reducer for Model High Pressure Liquid Line Low Pressure Liquid Line Gas Line Gas Line Gas Line Gas Line ID15.88 ID15.88...
Page 18 ● Piping Size (fmm) Upstream Side Pipe Diameter for Outdoor Unit Main Pipe Diameter Outdoor Outdoor Outdoor (Base Unit or Piping Connection Kit 1 to First Branch) Unit Unit Unit [Branch pipe of First Branch] (3 Pipes) (*2) High (*6) Outdoor Unit (*6) Pressure...
Page 19 ● Piping Work Conditions (Refer to the figure of previous age.) Allowable Piping Length (*13) < the recommended > the recommended Item Mark connectable number connectable number of Indoor Unit of Indoor Unit Total Liquid Piping Total Piping Length < 1,000m (*14) <...
Page 20 ● Piping Branch Restriction Follow the table below when performing the field-supplied piping work. Main Piping Branch * Piping Length between Indoor Unit Branch pipe(First Branch) Capacity Ratio Piping Length Number of Main and Each Indoor Unit (L2) After Main Branch After Branch Piping Branch a+b+c <...
Page 21 2. General Data Capacity 76Model 96Model 114Model 136Model Outdoor Model AVWT-76FESRA AVWT-96FESRA AVWT-114FESSA AVWT-136FESSA AVWT-76FESRA AVWT-136FESSA Conbination AVWT-96FESRA AVWT-114FESSA Model Power Supply ~415V Performance Cooling Operating Range Nominal Cooling Capacity Nominal Cooling Capacity Power Consumption 9.18 4.21 4.02 3.65 3.70...
Page 22 17 Model 19 Model 212Model Outdoor Model AVWT-154FESSA AVWT-212FESZA AVWT-170FESZA AVWT-190FESZA Model AVWT-154FESSA AVWT-136FESSA AVWT-96FESRA AVWT-114FESSA Conbination AVWT-76FESRA AVWT-76FESRA AVWT-76FESRA Power Supply — ~415V Performance Cooling Operating Range Nominal Cooling Capacity Nominal Cooling Capacity 16.13 14.50 3 16 2.29 Power Consumption 3.42...
Page 23 Capacity 232Model 250Model 272*Model 290*Model Outdoor Model AVWT-232FESZA AVWT-250FESZA AVWT-272FESZA AVWT-290FESZA AVWT-114FESSA AVWT-136FESSA AVWT-136FESSA AVWT-154FESSA Model Conbination AVWT-114FESSA AVWT-114FESSA AVWT-136FESSA AVWT-136FESSA Power Supply ~415V Performance Cooling Operating Range 80.0 Nominal Cooling Capacity 49 100 90 100 273 000 81.1 8 84 2 488 6 13 4 114...
Page 24 308Model (32) 324Model (34) 340Model (36) 364*Model (38) Capacity（HP） AVWT-308FESZA AVWT-324FESZA AVWT-364FESZA Outdoor Model AVWT-340FESZA AVWT-154FESSA AVWT-136FESZA AVWT-154FESSA AVWT-154FESSA AVWT-154FESSA Model AVWT-96FESRA AVWT-114FESRA AVWT-96FESRA Conbination － AVWT-96FESSA AVWT-96FESRA AVWT-96FESRA Power Supply － AC 3φ 380V~415V/50Hz Performance -5~43 Cooling Operating Range ℃...
Page 25 Capacity 382Model 398Model 420Model 438Model Outdoor Model AVWT-382FESZA AVWT-398FESZA AVWT-420FESZA AVWT-438FESZA AVWT-154FESSA AVWT-154FESSA AVWT-154FESSA AVWT-154FESSA AVWT-136FESSA AVWT-154FESSA AVWT-154FESSA Model AVWT-154FESSA Conbination AVWT-96FESRA AVWT-96FESRA AVWT-136FESSA AVWT-114FESSA Power Supply ~415V Performance Cooling Operating Range Nominal Cooling Capacity 26 0 50,500 Nominal Cooling Capacity 8 075 432 3 61 644...
Page 26 Capacity 454Model Outdoor Model AVWT-454FESZA AVWT-154FESSA Model AVWT-154FESSA Conbination AVWT-154FESSA Power Supply ~415V Performance Cooling Operating Range Nominal Cooling Capacity 464 2 140.4 479 045 Nominal Cooling Capacity Power Consumption 39.48 Heating Operating Range 150.0 Nominal Heating Capacity 511 9 Power Consumption 37.50 Sound Pressure Level(380/208V/Night-Shift)※3...
Page 27 3. Dimensional Data 3.1 Dimensional Data of Outdoor Unit ■Outdoor Unit Model: AVWT-76*,AVWT-96* Unit: mm Viewed from P Hole for Condensate Drain (Ø26 x 4) Hole for Power Supply Wiring (Ø52) 4-Holes Hole for Holes for (38 x 15) Refrigerant Piping Control Line or Power Supply Wiring (235 x 113)
Page 28 Model: AVWT-114*,AVWT-136*,AVWT-154* Unit: mm Viewed from P Hole for Condensate Drain (Ø26 x 4) Hole for Power Supply Wiring (Ø52) Hole for Holes for 4-Holes Refrigerant Piping Control Line or (38 x 15) (245 x 138) Power Supply Wiring (Ø26 x 2) Service Cover Electrical Control Box Gas Line Refrigerant...
Page 29 3.2 Switch Box Model: HCH-160D Unit: mm (For Suspension Bolt) Suspension Bracket 2-11x34 Slotted Hole Refrigerant Gas Pipe Electrical Box Connection (Available for (φ15.88 Flare Nut) Refrigerant Gas Pipe both sides) Connection (Low Pressure) (φ15.88 Flare Nut) Refrigerant Gas Pipe Connection (High Pressure) Earth Terminal (M5) (φ15.88 Flare Nut)
Page 30 Model: AVWT-170* 282 or more Outdoor Unit A Outdoor Unit B 20 or more （1920） (Note) Spacing between outdoor units in this drawing is 20mm. Model Outdoor Unit A Outdoor Unit B Standard Combination AVWT-170* AVWT-96* AVWT-76*...
Page 31 Two-Module Combination Model: AVWT-190*/212* 282 or more Outdoor Unit A Outdoor Unit B 20 or more 1210 （2180） (Note) Spacing between outdoor units in this drawing is 20mm. Model Outdoor Unit A Outdoor Unit B AVWT-190* AVWT-114* AVWT-76* Standard Combination AVWT-212* AVWT-136* AVWT-76*...
Page 32 Model: AVWT-232*~308* 282 or more Outdoor Unit A Outdoor Unit B 20 or more 1210 1210 （2440） (Note) Spacing between outdoor units in this drawing is 20mm. Model Outdoor Unit A Outdoor Unit B AVWT-232* AVWT-114* AVWT-114* AVWT-250* AVWT-136* AVWT-114* Standard Combination AVWT-136* AVWT-136*...
Page 33 Three-Module Combination Model: AVWT-324*~340* 282 or more 282 or more Outdoor Unit C Outdoor Unit A Outdoor Unit B 20 or more 20 or more 1210 （3150） (Note) Spacing between outdoor units in this drawing is 20mm. Model Outdoor unit A Outdoor unit B Outdoor unit C AVWT-324*...
Page 34 Model: AVWT-364*~398* 282 or more 282 or more Outdoor Unit C Outdoor Unit A Outdoor Unit B 20 or more 20 or more 1210 1210 （3410） (Note) Spacing between outdoor units in this drawing is 20mm. Model Outdoor unit A Outdoor unit B Outdoor unit C AVWT-364*...
Page 35 Model: AVWT-420*~454* 282 or more 282 or more Outdoor Unit C Outdoor Unit A Outdoor Unit B 20 or more 20 or more 1210 1210 1210 （3670） (Note) Spacing between outdoor units in this drawing is 20mm. Model Outdoor unit A Outdoor unit B Outdoor unit C AVWT-420*...
Page 36 3.3 Structure Model: AVWT-76/96* Part Name Part Name Compressor (Inverter) Check Joint (Low) Heat Exchanger Check Joint (High) Propeller Fan Check Joint (for Oil) Fan Motor Electrical Box Accumulator Low Pressure Sensor Oil Separator High Pressure Sensor Micro-Computer Control Expansion Valve High Pressure Switch for Protection (2pcs.) Strainer (7pcs.)
Page 37 Model: AVWT-114/136* Part Name Part Name Compressor (Inverter) Solenoid Valve (3pcs.) Compressor (Constant Speed) Check Joint (Low) Heat Exchanger Check Joint (High) Propeller Fan Check Joint (for Oil) Fan Motor Electrical Box Accumulator Low Pressure Sensor Oil Separator High Pressure Sensor Micro-Computer Control Expansion Valve High Pressure Switch for Protection (2pcs.)
Page 38 Model: AVWT-154* Part Name Part Name Compressor (Inverter) Solenoid Valve (3pcs.) Compressor (Constant Speed) Check Joint (Low) Heat Exchanger Check Joint (High) Propeller Fan Check Joint (for Oil) Fan Motor Electrical Box Accumulator Low Pressure Sensor Oil Separator High Pressure Sensor Micro-Computer Control Expansion Valve High Pressure Switch for Protection (2pcs.)
Page 39 4. Selection Data 4.1 Service Space Make the service space when outdoor unit is installed as follows. - In case of no walls at the front and the rear side of the (Unit: mm) unit, the space of 500mm for the front side and 300mm for the rear side is required.
Page 40 3) Walls on 4 Directions • Single Installation • Multiple / Serial Installation < Installation in the Same Direction> < Rear to Rear Installation 1 > < Rear to Rear Installation 2 > NOTE 1. Keep the upper side open to prevent mutual interference of inlet and outlet air of each outdoor unit. 2.
Page 41 Capacity Characteristic Curve The following charts show the characteristics of outdoor unit capacity which corresponds with total capacity of combined indoor unit, on standard condition with refrigerant piping of horizontal and 7.5m at length . Heating Capacity Graph for AVWT-76* Cooling Capacity Graph for AVWT-76* Total Horse Power of Combined IDU Total Horse Power of Combined IDU...
Page 42 Heating Capacity Graph for AVWT-136* Cooling Capacity Graph for AVWT-136* Total Horse Power of Combined IDU Total Horse Power of Combined IDU Cooling Capacity Graph for AVWT-154* Heating Capacity Graph for AVWT-154* Total Horse Power of Combined IDU Total Horse Power of Combined IDU Heating Capacity Graph for AVWT-170* Cooling Capacity Graph for AVWT-170* Total Horse Power of Combined IDU...
Page 43 Heating Capacity Graph for AVWT-190* Cooling Capacity Graph for AVWT-190* Total Horse Power of Combined IDU Total Horse Power of Combined IDU Heating Capacity Graph for AVWT-212* Cooling Capacity Graph for AVWT-212* Total Horse Power of Combined IDU Total Horse Power of Combined IDU Heating Capacity Graph for AVWT-232* Cooling Capacity Graph for AVWT-232* Total Horse Power of Combined IDU...
Page 44 Heating Capacity Graph for AVWT-250* Cooling Capacity Graph for AVWT-250* Total Horse Power of Combined IDU Total Horse Power of Combined IDU Heating Capacity Graph for AVWT-268* Cooling Capacity Graph for AVWT-268* Total Horse Power of Combined IDU Total Horse Power of Combined IDU Heating Capacity Graph for AVWT-287* Cooling Capacity Graph for AVWT-287* Total Horse Power of Combined IDU...
Page 45 Heating Capacity Graph for AVWT-306* Cooling Capacity Graph for AVWT-306* Total Horse Power of Combined IDU Total Horse Power of Combined IDU Heating Capacity Graph for AVWT-324* Cooling Capacity Graph for AVWT-324* Total Horse Power of Combined IDU Total Horse Power of Combined IDU Heating Capacity Graph for AVWT-340* Cooling Capacity Graph for AVWT-340* Total Horse Power of Combined IDU...
Page 46 Heating Capacity Graph for AVWT-364* Cooling Capacity Graph for AVWT-364* Total Horse Power of Combined IDU Total Horse Power of Combined IDU Heating Capacity Graph for AVWT-382* Cooling Capacity Graph for AVWT-382* Total Horse Power of Combined IDU Total Horse Power of Combined IDU Heating Capacity Graph for AVWT-398* Cooling Capacity Graph for AVWT-398* Total Horse Power of Combined IDU...
Page 47 Heating Capacity Graph for AVWT-420* Cooling Capacity Graph for AVWT-420* Total Horse Power of Combined IDU Total Horse Power of Combined IDU Heating Capacity Graph for AVWT-438* Cooling Capacity Graph for AVWT-438* Total Horse Power of Combined IDU Total Horse Power of Combined IDU Heating Capacity Graph for AVWT-454* Cooling Capacity Graph for AVWT-454* Total Horse Power of Combined IDU...
Page 48 Capacity Table Under Different Temperature(KW) Table 1. Cooling Capacity Table for AVWT-76* Outdoor Air Inlet Indoor Air Inlet Wet Bulb (℃) Dry Bulb (℃) Table 2. Cooling Capacity Table for AVWT-96* Outdoor Air Inlet Indoor Air Inlet Wet Bulb (℃) Dry Bulb (℃) Table 3.
Page 49 Table6. Cooling Capacity Table for AVWT-170* Outdoor Air Inlet Indoor Air Inlet Wet Bulb (℃) Dry Bulb (℃) Table 7. Cooling Capacity Table for AVWT-190* Outdoor Air Inlet Indoor Air Inlet Wet Bulb (℃) Dry Bulb (℃) Table 8. Cooling Capacity Table for AVWT-212* Outdoor Air Inlet Indoor Air Inlet Wet Bulb (℃) Dry Bulb (℃)
Page 50 Table 11. Cooling Capacity Table for AVWT-268* Outdoor Air Inlet Indoor Air Inlet Wet Bulb (℃) Dry Bulb (℃) Table 12. Cooling Capacity Table for AVWT-287* Outdoor Air Inlet Indoor Air Inlet Wet Bulb (℃) Dry Bulb (℃) Table 13. Cooling Capacity Table for AVWT-306* Outdoor Air Inlet Indoor Air Inlet Wet Bulb (℃) Dry Bulb (℃)
Page 51 Table 16. Cooling Capacity Table for AVWT-364* Outdoor Air Inlet Indoor Air Inlet Wet Bulb (℃) Dry Bulb (℃) Table 17. Cooling Capacity Table for AVWT-382* Outdoor Air Inlet Indoor Air Inlet Wet Bulb (℃) Dry Bulb (℃) Table 18. Cooling Capacity Table for AVWT-398* Outdoor Air Inlet Indoor Air Inlet Wet Bulb (℃) Dry Bulb (℃)
Page 52 Table 21. Cooling Capacity Table for AVWT-454* Outdoor Air Inlet Indoor Air Inlet Wet Bulb (℃) Dry Bulb (℃) NOTE: 1. The table shows the normal value of cooling operation. In some cases, the value may change due to the compressor protection control. 2.
Page 53 Capacity Table Under Different Temperature Table 1. Heating Capacity Table for AVWT-76* Indoor Air Inlet Dry Bulb (℃) Outdoor Air Inlet Web Bulb (℃) Table 2. Heating Capacity Table for AVWT-96* Indoor Air Inlet Dry Bulb (℃) Outdoor Air Inlet Web Bulb (℃) Table 3.
Page 54 Table 5. Heating Capacity Table for AVWT-154* Indoor Air Inlet Dry Bulb (℃) Outdoor Air Inlet Web Bulb (℃) Table 6. Heating Capacity Table for AVWT-170* Outdoor Air Inlet Indoor Air Inlet Dry Bulb (℃) Web Bulb (℃) Table 7. Heating Capacity Table for AVWT-190* Indoor Air Inlet Dry Bulb (℃) Outdoor Air Inlet Web Bulb (℃)
Page 55 Table 9. Heating Capacity Table for AVWT-232* Indoor Air Inlet Dry Bulb (℃) Outdoor Air Inlet Web Bulb (℃) Table 10. Heating Capacity Table for AVWT-250* Indoor Air Inlet Dry Bulb (℃) Outdoor Air Inlet Web Bulb (℃) Table 11. Heating Capacity Table for AVWT-268* Indoor Air Inlet Dry Bulb (℃) Outdoor Air Inlet Web Bulb (℃)
Page 56 Table 13. Heating Capacity Table for AVWT-306* Indoor Air Inlet Dry Bulb (℃) Outdoor Air Inlet Web Bulb (℃) 64.0 64.0 63.7 63.4 63.4 71.6 71.0 71.0 70.7 70.3 79.9 79.2 79.3 79.0 78.8 90.0 89.6 89.4 89.1 88.7 97.1 96.5 96.2 95.4...
Page 57 Table 17. Heating Capacity Table for AVWT-382* Indoor Air Inlet Dry Bulb (℃) Outdoor Air Inlet Web Bulb (℃) Table 18. Heating Capacity Table for AVWT-398* Indoor Air Inlet Dry Bulb (℃) Outdoor Air Inlet Web Bulb (℃) Table 19. Heating Capacity Table for AVWT-420* Indoor Air Inlet Dry Bulb (℃) Outdoor Air Inlet Web Bulb (℃)
Page 58 Table 21. Heating Capacity Table for AVWT-454* Indoor Air Inlet Dry Bulb (℃) Outdoor Air Inlet Web Bulb (℃) NOTE: 1. The table shows the normal value of heating operation. In some cases, the value may change due to the compressor protection control. 2.
Page 59 4.5 Capacity Correction Based On Refrigerant Piping Length < Cooling Capacity > The correction factors are shown in the following figure Correction Factor for Cooling Capacity According to Piping Length Equivalent Piping Length for The cooling capacity should be corrected according to the following formula: One 90°...
Page 60 <Heating Capacity > The correction factors are shown in the following figure Equivalent Piping Length for Correction Factor for Cooling Capacity According to Piping Length One 90° Elbow is 0.5m. The heating capacity should be corrected according to the following formula: One 180°...
Page 61 4.6 Correction Factor According to Defrosting Operation The heating capacity in the preceding paragraph, excludes the condition of the frost or the defrosting operation period. In consideration of the frost or the defrosting operation, the heating capacity is corrected by the equation below.
Page 62 Electrical Data Maximum Nominal Nominal Fuse Applicable Fuse Model Unit Main Power Sensitive Current Voltage Current Current AVWT-76* ~415 ~415 AVWT-96* ~415 AVWT-114* ~415 AVWT-136* ~415 AVWT-154* ~415 AVWT-170* ~415 AVWT-190* ~415 AVWT-212* ~415 AVWT-232* ~415 AVWT-250* ~415 AVWT-268* ~415 AVWT-287* ~415 AVWT-306*...
Page 63 4.8 Sound Data Model: AVWT-76* Power Supply: 380~415V/50Hz Model: AVWT-96* Power Supply: 380~415V/50Hz Model: AVWT-114* Model: AVWT-136* Power Supply: 380~415V/50Hz Power Supply: 380~415V/50Hz...
Page 64 Model: AVWT-154* Power Supply: 380~415V/50Hz Model: AVWT-170* Power Supply: 380~415V/50Hz Model: AVWT-190* Power Supply: 380~415V/50Hz Model: AVWT-212* Power Supply: 380~415V/50Hz...
Page 65 Model: AVWT-232* Model: AVWT-250* Power Supply: 380~415V/50Hz Power Supply: 380~415V/50Hz Model: AVWT-290* Model: AVWT-272* Power Supply: 380~415V/50Hz Power Supply: 380~415V/50Hz...
Page 66 Model: AVWT-308* Model: AVWT-324* Power Supply: 380~415V/50Hz Power Supply: 380~415V/50Hz Model: AVWT-340* Model: AVWT-364* Power Supply: 380~415V/50Hz Power Supply: 380~415V/50Hz...
Page 67 Model: AVWT-382* Model: AVWT-398* Power Supply: 380~415V/50Hz Power Supply: 380~415V/50Hz Model: AVWT-420* Model: AVWT-438* Power Supply: 380~415V/50Hz Power Supply: 380~415V/50Hz...
Page 68 Model: AVWT-454* Power Supply: 380~415V/50Hz...
Page 69 5. Component Data Outdoor Heat Exchanger, Fan and Fan Motor Model AVWT- 76* AVWT-96* AVWT-114* AVWT-136* Multi-way cross-flow finned tube type Heat exchanger type Copper Material φmm Pipeline Outer diameter Rows Heat Aluminum Material Exchanger Spacing 4.15 Max. operating pressure Max.
Page 70 Outdoor Heat Exchanger, Fan and Fan Motor Model AVWT-250* AVWT-232* AVWT-272* AVWT-290* Multi-way cross-flow finned tube type Heat exchanger type Copper Material φmm Pipeline Outer diameter Rows Heat Aluminum Material Exchanger Spacing 4.15 Max. operating pressure Max. frontal area 2.80+2.80 2.80+2.80 2.80+2.80 2.80+2.80...
Page 71 Outdoor Heat Exchanger, Fan and Fan Motor Model AVWT-382* AVWT-398* AVWT-420* AVWT-438* Multi-way cross-flow finned tube type Heat exchanger type Copper Material φmm Pipeline Outer diameter Rows 3+3+3 3+3+3 3+3+3 3+3+3 Heat Aluminum Material Exchanger Spacing 4.15 Max. operating pressure Max.
Page 72 Parameters of Compressor Compressor Model E656DHD-65D2Y E655DH-65D2YG E855DH-80D2Y(CH) Exhaust 4.15 4.15 4.15 pressure Leakage pressure Intake 2.21 2.21 2.21 pressure Model Three-phase sync motor Three-phase induction motor Three-phase induction motor Start-up mode Compressor motor Polarities Insulation grade Brand FVC68D FVC68D FVC68D Refrigerator oil Injected...
Page 73 6. Control System 6.1 Refrigerantion Cycle 6.1.1 Outdoor Units AVWT-76*~96* AVWT-76 AVWT-96 AVWT-114 AVWT-76 AVWT-96 AVWT-114 AVWT-76 AVWT-96, 114 AVWT-76 AVWT-96 AVWT-114 Refrigerant Flow Direction (Cooling) Refrigerant Flow Direction (Heating) Field Refrigerant Piping Flare Connection Brazing Connection Mark OD x T Material Mark Part Name...
Page 74 114 154 AVWT-136 AVWT-154 AVWT-136 AVWT-154 AVWT-136, 154 AVWT-136 AVWT-154 Refrigerant Flow Direction (Cooling) Refrigerant Flow Direction (Heating) Field Refrigerant Piping Flare Connection Brazing Connection Mark Part Name Mark OD x T Material Compressor 28.0 x 1.6 Heat Exchanger 25.4 x 1.8 Double Tube Type Heat Exchanger 25.4 x 1.2 Oil Separator...
Page 75 6.1.2 Switch Box Model: HCH-160D and HCH-280D To Indoor Unit To Outdoor Unit Electric Expansion Valve [MVD1] Strainer High Pressure Gas b φ15.88 b φ15.88 a φ19.05 Low Pressure Gas Electric Expansion Valve [MVD2] c φ6.35 c φ6.35 Capillary Tube Electric Expansion Valve [MVS2] c φ6.35...
Page 76 6.2 Function Control Unit Control Heating Operation, Control Device Cooling Operation Defrosting Heat Recovery System Purpose of Control Contents Purpose of Control Contents Contents Capacity control is carried PI control is carried out to Inverter Freqency of Total I.U. out to achieve the targeted Total I.U.
Page 77 Figure below shows the outline of the control system. (Example: Combination of Base Units, AVWT-190* to AVWT-454* + Indoor Unit) to Transmission Circuit of Combination Outdoor Unit Thermistor for Inlet Air Thermistor of Discharge Air Multiple Signals Thermistor for Ambient Temperature “TA” (THM7) Thermistor for Gas Pipe Discharge Gas Thermistor “TD1”...
Page 78 Seven-segment Setting Item Setting Options digital display Initial setting Fan operat es On for 2 minutes/off for 6 minutes intermittently when On for 2 minutes/off for 13 minutes heating temperature On for 2 minutes/off for 28 minutes control is off Fan stops Initial setting Night mode...
Page 79 Seven-segment No Setting Item digital Setting Options display Initial setting Control on target value of Target value+2℃ superheat degree of heat Target value+1℃ exchanger of cooling Target value-1℃ indoor unit Target value-2℃ Initial setting Control on target value of Target value+6℃ supercooling degree of the Target value+3℃...
Page 80 Seven-segment Setting Item digital Settings display Initial setting 40% of set value WAVE control 60% of set value 70% of set value 80% of set value Initial setting Low cooling blast temperature Control started at blast temperature of 10℃ protection Control started at blast temperature of 12℃...
Page 81 6.3.2 Input & Output Settings Access outdoor unit settings by pressing PSW1 button on base board of outdoor unit. In case of combined outdoor unit, set Outdoor unit A to active, and set Outdoor units B and C to inactive. ■Start setting Press PSW1 for one time.
Page 82 The default input and output setting upon factory delivery are given below: ■Factory setting Guide Function Factory Setting Connector Corner #1-#2 Fixed heating mode CN17 Signal #2-#3 Fixed cooling mode Input CN18 #1-#2 Instructions Signal #1-#2 Operating Output CN16 #1-#3 Alarm signals Change input and output settings in the following procedure.
Page 83 e) Choose the input/output setting options to change, and then press PSW3 or PSW5 to change these opt ions By pressing PSW3, the number increases by 1. By pressing PSW5, the number decreases by 1. (Control Function No.13 Press PSW3 return to 0) f) Upon finishing changing settings, press PSW1 for three seconds to exit.
Page 84 If Demand Stoppage pins (Pins #1 and #2 on CN18) is short circuited when outdoor unit is operating, the compressor and indoor fan motor of will be shut down, while the wire controller will stay in its original mode and shutdown code "10" will be displayed at the same time.
Page 85 (5) Low noise setting 1, 2, 3 (11, 12, 13) When low noise inputs on PCB of outdoor unit is short circuited, outdoor unit will operate at the Sound Pressure Level as given in the table below. Input Function No. Sound Pressure Level Capacity of Outdoor Unit Not Set...
Page 86 (2) Output Alarm Signals Acquisition (2) This function is used for acquisition of alarm signals on outdoor unit. When outdoor unit fails, the relay is close. This function is used for linkage control in case of alarm. Auxiliary Relay Three-pin socket JST-XARP-03V (Contact SXA-001T-P0.6) PCB of outdoor unit...
Page 87 6.3.3 Safety and Control Device Setting • Compressor Protection The compressor is protected by the following devices and their combinations. (1) High Pressure Switch: This switch cuts out the operation of the compressor when the discharge pressure exceeds the setting. (2) Oil Heater: This band type heater protects against oil foaming during cold starting, as it is energized while the compressor is stopped.
Page 88 6.4 Standard Operating Procedure Chart Cooling operation I.U.: Indoor Unit O.U.: Outdoor Unit Auto - louver only for Indoor Unit 0 Reset with Auto-Louver Start of Transmitting between Power to Power to PCB I.U. and O.U. I.U.: ON in I.U.: ON Start of Transmitting between I.U.
Page 89 I.U.: Indoor Unit Start of Auto-Louver Pressing only for Air Panel AUTO-LOUVER Alternately or Indoor Unit Switch with Auto-Louver Stop of Auto-Louver Pressing RUN/STOP Switch After 3 min. MD Stop 20 sec. for Unit with Drain Pump Power to MIF : OFF RUN/STOP Lamp: OFF, COOL, Set Fan Speed &...
Page 90 I.U.: Indoor Unit O.U.: Outdoor Unit Auto - louver only for Indoor Unit 0 Reset with Auto-Louver Start of Transmitting between Power to PCB I.U. and O.U. Power to in I.U.: ON Start of Transmitting between I.U.: ON I.U. and Remote Control Switch (Higher than Activation Level) MD : ON for Unit with...
Page 91 I.U.: Indoor Unit Start of Auto-Louver Pressing only for Air Panel AUTO-LOUVER Alternately or Indoor Unit Switch with Auto-Louver Stop of Auto-Louver Pressing RUN/STOP Switch After 3 min. MD Stop 20 sec. for Unit with Drain Pump Power to MIF : OFF RUN/STOP Lamp: OFF, COOL, Set Fan Speed &...
Page 92 Power Supply Cooling Operation or Dry Operation Is compressor operated for more than *30 min.? * The judging time varies under the condition. Cooling Operation or Dry Operation Pipe Surface Temp. of > 0 Indoor Heat Exchanger or Gas Pipe Surface Temp.
Page 93 I.U.: Indoor Unit O.U.: Outdoor Unit Start of Transmitting between Power to Power to PCB I.U. and O.U. Start of I.U.: ON in I.U.: ON Transmitting between I.U. and Remote Control Switch only for Indoor Unit Auto - louver 0 Reset with Auto-Louver Setting Operation...
Page 94 I.U.: Indoor Unit O.U. Outdoor Unit Start of Auto-Louver Pressing only for Air Panel Auto-Louver Alternately or Indoor Unit Switch with Auto-Louver Stop of Auto-Louver Pressing RUN/STOP Indoor < 50 Switch Unit Discharge Indoor Fan Motor MIF : OFF Air Temp. Heat >...
Page 95 Heating Small Temperature Difference Heating Operation Time between Outdoor Temperature 40 Minutes or Above and Evaporating Temperature (Te) at Heat Exchanger Defrosting RVR1 : ON RVR2 : OFF Outdoor FAN MOF1 : OFF 1 Minute Later Compressor Operating High Frequency at Low Frequency Operation Fixed Opening...
Page 96 Heating Operation Discharge < 65 Air Temp. of Indoor Unit > 65 Thermo-OFF Is it continuous more than 3 min.? > 60 Discharge Air Temp. of Indoor Unit < 60 Is setting temp. lower than inlet air temp. of Indoor Unit? Thermo-ON Thermo ON/OFF Control of Indoor Unit...
Page 97 ELECTRICAL WIRING DIAGRAM (FOR MODEL: AVWT-76~96* AVWT-114*~154*; 380-415V/50HZ Mark Name CN,PCN 2,U,V EFR1 FANM 1 ~ 4 MV1,B Pd,Ps SVA,G PC1 ~ 3,5 SK1,2 Note: MOF1 MOF1 THM23 Electrical Box (TBG) ( For Inverter) THM23 RVR2 (TBG) RVR2 RVR1 Electrical Box ( For Constant) PSH1 THM7...
Page 98 ELECTRICAL WIRING DIAGRAM (FOR MODEL: HCH-160D AND HCH-280D; 220-240V/50HZ)
Page 99 7. Structure 7.1 Outdoor Unit & Refrigerant Cycle Regarding structure drawing and refrigerant cycle diagram,please refer to Technical Catalogue. 7.2 Necessary Tools and Instrument List for Installation...
Page 100 23 45 6 7 8 9 6 8 7 4 4 8 4 7 4 9 9 8 6 7 4 4 3 4 6 4 9 4 8 9 8 9 6 7 4 4 4 5 6 7 8 9 6 8 7 4 7 4 ! "3 4 #9 7 8 $ 4 %3 4 6 4 9 4 8 9 8 9 6 7 4 &...
Page 101 8. Unit Transportation and Handing 8.1 Transportation Transport the product as close to the installation location as practical before unpacking. When using a crane, hang the unit according to the description of the label attached to the outdoor unit. Do not hang the unit by the ropes at the wooden base. Rope Position CORRECT INCORRECT...
Page 102 8.2 Hanging Method When hanging the unit, ensure a balance of the unit, check safety and lift up smoothly. (1) Do not remove any packing materials. (2) Hang the unit under packing condition with two (2) wire ropes, as shown in the following figure. Wire Rope Angle of wire rope Corrugated Paper Frame...
Page 103 9. Outdoor Installation 9.1 Factory-Supplied Accessories Check to ensure that the following accessories are packed with the outdoor unit. Table Factory-Supplied Accessories Accessory Connection for Refrigerant Gas (Low) Pipe f22.2→f15.88 f22.2→f19.05 f25.4→f. f25.4→f. f25.4→f. Connection for Accessory Refrigerant Gas Pipe (High/Low) Pipe f22.2→f19.05 f25.4→f8.6...
Page 104 9.2 Installation ! " # $ % &...
Page 105 9.4 Foundation Concrete Foundations (1) The height of the foundation should be 150mm higher than the ground level. (2) Install a drainage around foundation for smooth drain. (mm) Mortar Hole 100 x Depth 150 Refrigerant Pipe Drainage more than (Width 100 x Depth 20) more than 150mm or Higher...
Page 106 (5) When installing the outdoor unit, fix the unit by ancho bolts (field-supplied) Refer to below Fig. regarding the location of fixing holes Unit: mm <114 kBtu/h to 154kBtu/h> <76 kBtu/h to 96 kBtu/h> 4-38x15 4-38x15 Hole of Anchor Bolt Hole of Anchor Bolt Fig.
Page 107 9.5 Treatment of Condensed Water Condensed water will be discharged from outdoor unit during heating and defrosting operation (rain water also to be discharged from here). Special attention shall be paid to the following considerations: (1) Select a proper location to construct drain pipe or trench. (2) Do not install outdoor unit above any access for personal traffic, as condensed water may fall onto pedestrians.
Page 108 10. Refrigerant Piping Work G Use refrigerant R410A in the refrigerant cycle. Do not charge oxygen, acetylene or other ﬂammable and poisonous gases into the refrigerant cycle when performing a leakage test or an air-tight test. These types of gases are extremely dangerous and can cause an explosion.
Page 109 Table 10.1 Piping Size of Outdoor Unit (mm) Model Liquid f 19.05 f 15.88 f 9.5 f . f 19.05 f 9.5 f 5.4 f . f 1.7 f 8.6 f . f 1.7 f 8.6 f . f 15.88 f 8.6 f 5.4 f 15.88...
Page 110 10.2 Flare and Connector Flaring Dimension Perform the flaring work as shown below. (mm) Diameter -0.4 ( d) R410A 6.35 9.53 13.2 0.4 ~ 0.8R 12.7 16.6 (/) It is impossible to perform the flaring work with 1/2H material. In this case, 15.88 19.7 use an accessory pipe (with a flare)
Page 111 10.3 Caution about outdoor unit Installation ＜Outdoor Unit Alignment＞ Align the outdoor unit from large capacity as A > B > C and outdoor Unit “A” should be located at the indoor unit side. Outdoor Outdoor Outdoor Outdoor Unit Capacity: A > B > C Outdoor Outdoor Outdoor...
Page 112 (5) For servicing, in case that the pipe is placed frontward of the outdoor unit, secure min. 500mm between the outdoor unit and manifold pipe. (When the compressor is replaced, a space of min. 500mm is required.) Outdoor Unit Outdoor Unit Outdoor Unit Min.
Page 113 10.4 Piping Connection Perform the piping connection work for each outdoor unit. 6 6 6 8 6 9 8 9 6 ! 6 " 6 6 6 6 6 8 6 # ! 6 8 4 $6 7 9 6 6 8 6 9 8 9 6 8 6 6 % ! 6 6 6 9 8 9 8 6 4 Refer to Fig 10.1 for the position of piping connection.
Page 114 AVWT-232FESZA AVWT-250FESZA AVWT-272FESZA AVWT-290FESZA AVWT-308FESZA Outdoor AVWT-96FESRA AVWT-114FESSA AVWT-136FESSA AVWT-114FESSA AVWT-136FESSA AVWT-136FESSA AVWT-154FESSA AVWT-154FESSA Unit A Combination Unit Outdoor AVWT-76FESRA AVWT-76ESRA AVWT-76FESRA AVWT-114FESSA AVWT-114FESSA AVWT-136FESSA AVWT-136FESSA AVWT-154FESSA Unit B Piping Connection Kit HFQ-M202F HFQ-M212F Low Pressure 8.6 8.6 8.6 8.6 1.75...
Page 115 10.4.3 Piping Size for AVWT-324* to AVWT-454* (Triple Units Combination) < Figure for AVWT-364FE(7)(9)SZ > (Indoor Unit on Left Side) (Indoor Unit on Right Side) Outdoor Unit A Outdoor Unit B Outdoor Unit C Outdoor Unit C Outdoor Unit B Outdoor Unit A To Indoor Units To Indoor Units...
Page 116 10.4.4 Stop Valve Spindle Spindle Gas Valve (High Pressure) 1 1 1 3 1 7 8 High Pressure Gas Valve Gas Pipe (Low Pressure) 1 2 3 4 5 6 7 8 Stop Valve Cover Service Port 1 2 8 1 Brazing Portion of...
Page 117 ● Tube Connection (1) Make sure that stop valve is completely close. (2) When welding air-side tube as shown in Figure 10.2, use a metal sheet to protect compressor and its acoustical e nclosure, and take care not to make flame of welding torch burn valve body, (3) Connect indoor unit to outdoor unit with Refrigerant tube;...
Page 118 ● Manifold Pipe (Optional parts) Applicable Outdoor Unit Item Operation Type Model Remarks Outdoor Unit Outdoor Unit kBtu/h Number 3 Pipes Type 170 to 32 HFQ-M202F Piping for Cooling/Heating * for High Pressure Gas: 1 set Connection Simultaneous 250 to 308 HFQ-M212F * for Low Pressure Gas: 1 set Operation...
Page 119 ● Branch Pipe (Optional Parts) < Line Branch > First Branch Pipe Diameter and Branch Pipe after First Branch Outdoor Unit (kBtu/h) Model High 76 to 96 HFQ-M282F Pressure Pressure Liquid Total Indoor Unit Model 114 to 154 HFQ-M452F (kBtu/h) (fmm) (fmm) (fmm)
Page 120 ● Piping Size ( Upstream Side Pipe Diameter for Outdoor Unit Main Pipe Diameter Outdoor Outdoor Outdoor (Base Unit or Manifold Pipe 1 to First Branch) Unit Unit Unit [Branch pipe of First Branch] (3 Pipes) (*2) (*6) (*6) High (*1) Outdoor Unit Pressure...
Page 121 ● Piping Work Conditions (Refer to the figure of previous page.) Allowable Piping Length (*13) < the recommended > the recommended Item Mark connectable number connectable number of Indoor Unit of Indoor Unit Total Liquid Piping Total Piping Length < 1,000m (*14) <...
Page 122 ● Piping Branch Restriction Follow the table below when performing the field-supplied piping work. Main Piping Branch * Piping Length between Indoor Unit Branch Pipe (First Branch) Capacity Ratio Piping Length Number of Main and Each Indoor Unit (L2) After Main Branch After Branch Piping Branch a+b+c <...
Page 123 11. Electrical wiring Warning ● Prior to electrical wiring or regular inspection, shut off the main supply to indoor and outdoor units and wait for least three minutes Prior to electrical wiring or regular inspection, make sure that indoor and outdoor fans have been shut down. ●...
Page 124 Terminal Board for Transmission Wiring Terminal Board for Power Supply PCB1 Earth Wire Cord Band Plastic Band Cord Clamp (For fixing power supply cable) Cord Clamp (For Transmission Wiring) Transmission Wiring Connection Hole of Power Supply Wiring Connection Hole of Power Supply Wiring (φ...
Page 125 See Chapter 4.7 for the power distribution parameters. ELB: Earth Leakage Circuit Breaker Remarks: (1) The field wiring shall be conducted according to local laws. (2) The sizes of above power lines shall comply with relevant standards. (3) The shielded wire shall be used for the control system and be grounded. (4) The sheathed lines shall be used for power lines and shall be copper conductors.
Page 126 11.3 Electrical Wiring for Outdoor Unit Connect the electrical wirings according to the following figure. (1) Connect the power supply wires to L1, L2, L3, and N (for 380-415V) for the three phase power source on the terminal board TB1 and earth wire to the terminal in the electrical control box. (2) Connect the transmission wires between the outdoor and indoor units to the TB2 terminals 1 and 2 on the PCB1.
Page 127 Pay attention to the followings to run through the cables under the unit using conduit tube. (The pipe cover is required to remove before performing piping and wiring works.) NOTES: 1. Do not lead the power supply wiring and transmission wiring through the same conduit tube. Moreover, keep at least 5cm between the power supply wiring and transmission wiring.
Page 128 11.4 Electrical Wiring Connection of Indoor Unit, Outdoor Unit and Switch Box Connect a power supply wiring to each outdoor unit. Connect an ELB, fuse and main switch (S) to each outdoor unit. (2) Connect a power supply wiring to each indoor unit group to be connected to the same outdoor unit. (Max.
Page 129 < 380-415V/50Hz > Outdoor Unit A (Main) Outdoor Unit B (Sub) L1 L2 L3 N 2 3 4 L1 L2 L3 N TB : Terminal Board PCB : Printed Circuit Board : Field Wiring Earth Earth : Transmission Line (Shielded Twist Pair Cable) DC5V (Non-Pole Transmission H-LINK System) Main Switch : Field Supplied...
Page 130 12. Additional Refrigerant Charge 12.1 Air-Tight Test (1) Check to ensure that the stop valves are closed completely before air-tight test. < Tightening Check of Stop Valves > a) After connecting the pipe, remove the cap of stop valve for high pressure gas, low pressure gas (heat recovery system only) and liquid gas.
Page 131 (4) Check for any gas leakage at the flare nut connections, or brazed parts by gas leakage tester or by use of a foaming agent or gas leak detector. Recommended Forming Agent Manufacturer Guproflex Yokogawa & CO.,Ltd (5) Insulate high pressure and low pressure (heat recovery system only) gas piping side and liquid piping side.
Page 132 12.2 Vacuuming (1) Connect a manifold gauge and vacuum pump to the check joints*. High Pressure Gas Stop Valve Heat Pump System Liquid Stop Valve High Pressure Gas Stop Valve Heat Recovery System Low Pressure Gas Stop Valve Liquid Stop Valve (2) Continue vacuum pumping work until the pressure reaches -0.1MPa (-756mmHg) or lower for one to two hours.
Page 133 12.3 Additional Refrigerant Charge Calculation Table 12.1 Additional Refrigerant Charge Calculation Although refrigerant has been charged into this unit, additional refrigerant charge is required according to piping length. Determine the additional refrigerant quantity according to the following procedure, and charge it into the system. Record the additional refrigerant quantity to facilitate maintenance and servicing activities thereafter.
Page 134 12.4 Charging Work After vacuum pumping work, check that the high pressure gas valve, low pressure gas valve (low pressure gas valve is for heat recovery system only) and liquid stop valve are fully closed. Charge the additional refrigerant (refer to Table 8.1) from the check joint of liquid stop valve (Charging Refrigerant Amount Tolerance: 0.5kg).
Page 135 12.5 Automatic Simple Judgement System for Refrigerant Amount NOTE 1. This function is applicable when outdoor air temperature is 0 to 43 C DB and indoor air temperature is 10 to 32 C DB. 2. For 190 to 510kBtu/h, the operation and 7-segment indication check should be performed at outdoor unit A (main).
Page 136 12.6 Consideration ● Special Attention Regarding Refrigerant Gas Leakage Pay attention to the critical gas concentration to avoid accidental refrigerant gas leakage before installing air conditioning systems. Totally Charged Refrigerant Quantity in System (kg) < Critical Concentration (kg/m Room Space for each Indoor Unit (m ) 0.3 kg/m * In case of KHK S 0010, this value should be decided according to the each country’s regulation such as ISO5149 and EN378.
Page 137 13.Setting of DIP Switches 13.1 Function of RSW, DSWs and LEDs (Arrangement Inside of Electrical Box for AVWT-76~154* < 380-415V/50Hz> AVWT-76FESRA to AVWT-96FESRA AVWT-114FESSA to AVWT-154FESSA...
Page 138 Purpose Symbol Purpose PCB1 for Control 1. Transmitting between Indoor Unit and Outdoor Unit 2. Processing for Sensor Input 3. Processing for Dip Switch Input 4. Operation Control for Above Items 1 to 3. Compressor Operation Control, Bypass Valve Control, Fan Control and Overcurrent Control 5.
Page 139 13.2 Function of RSW、DSW、LED TURN OFF all power sources before setting. Without turning OFF, the switches do not work and the contents of the setting are invalid. (However, DSW4-No.1, 2, 4 can be operated during power source is ON.) The mark of “I” indicates the position of dip switches. Set the dip switches according to the below Fig. NOTE G By using switch DSW4, the unit is started or stopped after 10 to 20 seconds after the switch is operated.
Page 140 Part Name Contents of Functions Power Source Indication for PCB1 (Low Voltage) LED1 (Red) Normal Condition: Activated Abnormal Condition: Deactivated This LED2 indicates the transmission state between the PCB1 and PCB2. LED2 (Green) Normal Condition: Flashing Abnormal Condition: Activated or Deactivated This LED3 indicates the transmission state between the indoor unit and outdoor unit.
Page 141 c. Fan Controller 380-415V/50Hz CN206 DCL1 CN207 LED202 (Yellow) DCL2 HIC1 DSW1 (L3) LED501 (Red) Part Name Contents of Functions Power Source Indication for Fan Controller LED501 (Red) Normal Condition: Activated Abnormal Condition: Deactivated This indicates the state of microcomputer. LED202 (Yellow) Normal Condition: Activated...
Page 142 13.3 Procedure of Checking Each Main Parts 13.3.1 Self-Checking of PCBs using Remote Control Switch The following troubleshooting procedure is utilized for function test of PCBs in the indoor unit and outdoor unit. Indi- Contents cation Normal Abnormality (Open-circuit, Short-circuit, etc.) in circuit for Intake Air Temp.
Page 143 13.4 Procedure of Checking Other Main Parts (1) High Voltage Discharge Work for Replacing Parts Perform h t is high voltage discharge work to avoid an electric shock. < rocedure > (a) Turn OFF the main switches and wait for three minutes. Check to ensure that no high voltage exists.
Page 144 Remove all the terminals of the transistor module before check. If items (a) to (d) are performing and the results are satisfactory, the transistor module is normal. Measure it under 1kΩ range of a tester. Do not use a digital tester. (a) By touching the + side of the tester to the P terminal of transistor module and the - side of tester to U, V and W of transistor module,...
Page 145 If items (a) to (d) are performing and the results are satisfactory, the diode module is normal. Measure it under 1kΩ range of a tester. Do not use a digital tester. (a) By touching the + side of the tester to the + terminal of diode module and the - side of tester to the ~ terminals (3 NOs.) of the diode module, measure the resistance.
Page 146 (5) Checking Method of Resistor Measure the both ends of resistor as shown in the figure. If the resistance is ∞Ω, it is abnormal. Resistance 380-415V For Inverter RS 0.5k 0.5k 6.3k 10.5k (6) Checking of Fan Controller (a) Turn OFF the power source switches before this work. Also ensure that LED501 (Red) on the fan controller is turned OFF.
Page 147 (7) Checking Method of Electronic Expansion Valve Indoor Unit Electronic Expansion Valve Outdoor Unit Electronic Expansion Valve Locked Check for the liquid pipe temperature during It is abnormal if the liquid pipe pressure does with heating operation. not increase during cooling operation Fully Closed It is abnormal if the temperature does not increase.
Page 148 13.5 Communication Settings Setting for Transmitting It is required to set the outdoor unit Nos., refrigerant cycle Nos. and end terminal resistance for this Hi-NET system. Setting of Outdoor Unit No. In case of the combination of base unit, set DSW6 as shown below. Combination of Base Unit Base Unit Unit A...
Page 149 14. Test Run Do not operate the system until all the check points have been cleared. ● As for the test run of indoor unit, check “Installation & Maintenance Manual” attached to the indoor unit and Switch Box. 14.1 Before Test Run (1) Check to ensure that the refrigerant piping and transmission between outdoor unit and indoor units are connected to the same refrigerant cycle.
Page 150 Caution for Insulation Resistance If total unit insulation resistance is lower than 1 megohm, the compressor insulation resistance may be low due to retained refrigerant in the compressor. This may occur if the unit has not been used for long periods. 1.
Page 152 Settings of trial operation mode and blast volume: Press Operation Toggling to set operation mode (cooling or heating) and press Blast Volume to set volume to High. Press Start/Stop to start trial operation Stop trial operation after 2 hours, or press Start/Stop to cease trial operation. Abnormal Displayed number is inconsistent with actual connected number.
Page 153 Do not touch any other electrical parts when operating switches on the PCB. ● Do not attach or detach service cover when the power source for the outdoor unit is ON and the ● outdoor unit is operated. Turn all the dip switches of DSW4 OFF when the test run operation is completed. ●...
Page 154 Dip Switch Setting Operation Remarks 1. Setting 1. When DSW4-4 is ON during * Do not repeat compressor ON/OFF Compressor Manual OFF: compressor operation, frequently. Set DSW4-4 ON. the compressor stops to operate immediately and the indoor unit is under the condition of Thermo- OFF.
Page 155 The following phenomena can not be regarded to indicate that the unit is abnormal. Instead, they are designed to achieve better comfort, and serve for protecting the unit. Normal phenomenon Remark The unit continues to blow after the This design intends to blow out the waste heat. As the heating system is turned off.
Page 156 15.Check and troubleshooting 15.1 Overview of Inspection (1) Indoor and Outdoor Fan Inspect that the indoor fan and outdoor fan rotate correctly and the air flow is smooth. (2) Power Supply Voltage < Voltage Change > Check the power supply. If the power supply is abnormal, contact with electric Initial Voltage power company. Operating Voltage Usually, voltage drop will occur when starting as shown in the figure (V In order to protect device, comply with the following...
Page 157 Checking List for Refrigerant Cycle CHECK LIST ON TEST OPERATION CLIENT: INSTALLER: DATE: O.U. MODEL: O.U. SERIAL NO.: CHECKER: I.U. Model I.U. Serial No. I.U.: Indoor Unit, O.U.: Outdoor Unit Piping Length: Additional Refrigerant Charge: (1) General Check Item Result <Combination of Base Units>...
Page 158 Heating Operation (It is applicable when outdoor temperature is higher than 0°C.) Check Item Standard Causes Result 1 Are oE1 and oE2 (O.U. Ex. Valves Opening) • Excessive Refrigerant abnormally low or high when TdSH is 15 to 45 deg.? •...
Page 159 (1) Start inspection: Press and hold PSW1 for three seconds to access Inspection mode "CHEC". Arrangement of Dip Switch Setting Push Switches PSW2 DSW2 DSW3 PSW2 For Checking PSW5 PSW1 DSW4 DSW5 PSW3 SEG2 SEG1 DSW6 DSW7 PSW4 PSW5 PSW1 PSW3 Enter DSW1...
Page 160 15.3 Spot Inspection and Troubleshooting ■ Spot inspection description a) Wiring information display 7SEG Display Item Description SEG2 SEG1 For Total capacity of modules constituting outdoor unit, Total capacity of outdoor see table Capacity of Outdoor Unit. units Total of outdoor units Number of modules constituting outdoor unit Capacity of Indoor Unit Total of indoor units connected...
Page 161 7SEG Display Item Description SEG2 SEG1 Capacity of module of outdoor unit Capacity of outdoor unit module Refer to Outdoor Unit Capacity Codes Output status of outdoor unit Outdoor unit output See Outdoor Unit 7SEG Spot status Inspection Diagram Frequency of Operating frequency of compressor compressor Unit: Hz...
Page 162 7SEG Display Item Content SEG2 SEG1 Compressor (MC1) Unit: A current Unit: A Compressor (MC2) Available only for outdoor units of current Models 400~ 450 Unit: A Outdoor unit fan motor (MFC1) current Unit: A Compressor (MC1) Unit: hours (×10 = actual operation operation duration duration) Unit: hours (×...
Page 163 7SEG Display Item Content SEG2 SEG1 For capacity of indoor unit, see Indoor Unit Capacity Capacity of Indoor Unit Codes Aperture of electronic Unit: % expansion valve Heat exchanger liquid pipe Unit: temperature Heat exchanger gas pipe Unit: temperature Inlet air temperature Unit: Outlet air temperature Unit:...
Page 164 e) Display of Error History Record recent 15 error codes displayed Choose error SN by pressing PSW4 (▼) and PSW2 (▲) 7SEG Display SEG2 SEG1 ↓ ↓ View parameter detail by pressing PSW3 (►) Press PSW4 (▼)/PSW2 (▲) to page down/up. Press PSW5 (◄) to return 7SEG Display Item...
Page 165 Annex ●7SEG Display Part Diagram DC fan ●Cause Codes for Failure send to Indoor Unit Cause Shutdown code Cause Shutdown code Operation is ceased and power Retry caused by over-current in Constant supply is shut off compressor Retry caused by low intake pressure and Shutdown for temperature control exhaust temperature rise Shutdown for alarm...
Page 166 ●Cause Codes for Failure of Fan Control Module Shutdown code Cause Fan module controlled shutdown Instantaneous over-current Module temperature rise Heating protection action Excessively low voltage Excessive voltage Communication error Current sensor operates improperly Instantaneous power failure Fan module micro-computer reset Earthing error Reverse rotation Fan control module retry...
Page 167 ● Protection Code Protection Control Protection Control Protection Protection Code Code Pressure ratio protection control P11 Retry caused by excessively low pressure ratio Retry caused by LP pressure rise High pressure rise protection control Retry caused by High pressure rise Frequency converter current protection control Frequency converter...
Page 168 Temperature sensor is in short circuit or Return air temperature sensor of indoor unit operates improperly open circuit Connection wire is improper Outlet air temperature sensor of indoor unit PCB fails operates improperly Liquid pipe humidity sensor of heat exchanger of indoor unit operates improperly Gas pipe temperature sensor of heat exchanger of indoor unit operates improperly Ambient temperature sensor of...
Page 169 Current sensor fails Frequency converter current sensor operates improperly Frequency converter control signals Frequency converter control is improper are improper (over-current/low voltage/short circuiting protection) Instantaneous over-current Frequency converter temperature Temperature sensor operates improperly, heat rise protection acts exchanger is blocked, or fan motor fails Frequency converter fails Frequency converter PCB fails Fan control PCB protection acts...
Page 170 15.4 Troubleshooting 15.4.1 Initial Troubleshooting ● Checking of Electrical Wiring and Power Source Inspect the following items when abnormality is found during the system activation. Check Item Check Method Is power source breaker or fuse Check the voltage (secondary side) of the breaker and also blown out? check the conductivity of fuse by a tester.
Page 171 Table 15.4 Electrical Data and Recommended Wiring, Breaker Size/1 Outdoor Unit I Field Minimum Wire Sizes for Power Source Power Source Transmitting Maximum Earth Fuse Cable Size Cable Size Running Wire Nominal Nominal Outdoor Unit (KBtu/ h) Power Supply Sensitive Current Size EN60335-1...
Page 172 NOTES: 1) Follow local codes and regulations when selecting field wires. 2) The wire sizes marked with *1 in the table of previous page are selected at the maximum current of the unit according to the European Standard, EN60 335-1. Use the wires which are not lighter than the ordinary tough rubber sheathed flexible cord (code designation H05RN-F) or ordinary polychloroprene sheathed flexible cord (code designation H05RN-F).
Page 173 < 380-415V/50Hz Arrangement of Dip Switch Setting Push Switches PSW2 DSW2 DSW3 PSW2 For Checking PSW5 PSW1 DSW4 DSW5 PSW3 SEG2 SEG1 DSW6 DSW7 PSW4 PSW5 PSW1 PSW3 Enter DSW1 RSW1 Checking Checking PSW4 For Checking DSW10 DSW1 Ref. Cycle No. Setting DSW2 Capacity Setting Setting...
Page 174 ● Checking by 7-Segment Display • Simple Checking by 7-Segment Display / Turn on All Indoor Units / All the Indoor Units Connected to the Outdoor Unit Turn on the Outdoor Unit Auto-addressing Starts During auto-addressing, the following items can be checked using the outdoor unit's on-board 7-segment LED display.
Page 175 ● Function Setting 7-Segment Display Setting Item Contents SEG2 SEG1 No setting Circular at Heating Function Thermo-off Indoor fan forced ON and OFF (2 min. ON / 6 min. OFF) No Setting Night-Shift Setting of night-shift No setting For heating Cancellation of Outdoor Ambient Temperature Limit For cooling...
Page 176 7-Segment Display Setting Item Contents SEG2 SEG1 Initial setting (300~650PK) 2000 pulse Indoor Expansion Valve 1400 pulse Initial Opening of Thermo-ON 1000 pulse Indoor Unit in Heating Mode 600 pulse 05~09 Not prepared (If set, the setting item will be ignored by the control PCB.) Initial setting Cooling operation initial opening -2% Fine Adjustment of...
Page 177 ● Checking of Alarm Code History Alarm code history is indicated in the following order while the check mode is displayed. “no01” (latest) history data ~ “no15” (oldest) history data Refer to the figure below as an example. PSW1 PSW2(▲) History is displayed up to 15 cases at the maximum in alarm occurrence order.
Page 178 (1) Register of Alarm Code History Cause of Indication of Alarm Code History Stoppage Alarm Code Alarm Code (Alarm Code Contents Time Alarm or Stoppage or Stoppage O.U. Comp. Fan No. Code Code) Unit No. ○ ○ Activation of protection device Accumulated Time Abnormality transmitting between indoor units and outdoor units Accumulated Time...
Page 179 Cause of Indication of Alarm Code History Stoppage Alarm Code Alarm Code (Alarm Code Contents Time Alarm or Stoppage or Stoppage O.U. Comp. Fan No. Code Code) Unit No. ○ Accumulated Time Abnormality of low compression ratio ○ d1-11 Accumulated Time ○...
Page 180 (2) Deletion of Alarm Code History Press PSW1 and PSW3 for 5 seconds to clear the alarm code history while the history data is displayed. (All history can be deleted.) PSW2(▲) In order to delete all the history, press PSW1 and PSW3 ( ) PSW3( ) for 5 seconds PSW5( )
Page 181 ● Emergency Operation (1) Emergency Mode Operation from Remote Control Switch (AVWT-170FESZA to AVWT-454FESZA Only) If compressor is failed, emergency operation mode is available by the remote control switch. Even if the compressor is failed, the air conditioning operation is continuously available until the troubleshooting is performed.
Page 182 (2) Emergency Mode Operation from Outdoor Unit PCB for Inverter Compressor Failure (AVWT-114FESS to AVWT-154FESS Only) This operation is an emergency operation by the constant speed compressor when the inverter compressor is failed. <Alarms Corresponding to Inverter Compressor Failure> 04: Abnormality Transmitting between inverter PCB and Outdoor Unit PCB 06: Abnormality of Inverter Voltage 23: Abnormality of Discharge Gas Thermistor 48: Activation of Overcurrent Protection Device...
Page 183 (4) Emergency Mode Operation from Outdoor Unit PCB for Compressor Failure (AVWT-170FESZAto AVWT-454FESZA Only) Turn DSW5-No.1 or No.2 ON to stop the compressor operation. If set, all the compressors in the failed outdoor unit will NOT be operated. Set control PCB1 in the failed outdoor unit. Failed Outdoor Unit (DSW5) 1 2 3 4 5 6...
Page 184 ● Failure of Power Supply to Indoor Unit and Remote Control Switch Lights and LCD are not Indicated. ● Not Operated If fuses are melted or a breaker is activated, investigate the cause of over current and take necessary action. Action Phenomenon Cause...
Page 185 ● Failure of Power Supply to Indoor Unit and Remote Control Switch) Check it by Replace remote Failure of Remote Control Switch self-checking mode *1). control switch if failed. Unconnected Wires Correctly connect Check connectors. to PCB wires. Failure of PCB Check it by Failure of PCB Replace PCB if failed.
Page 186 ● Abnormalities of Devices In the case that no abnormality (Alarm Code) is indicated on the remote control switch, and normal operation is not available, take necessary action according to the procedures mentioned below. Action Phenomenon Cause Check Item (Turn OFF Main Switch) Disconnected Measure coil Coil...
Page 187 ● Abnormalities of Devices) Action Phenomenon Cause Check Item (Turn OFF Main Switch) Check Setting Condition of "Thermistor of Remote Control Switch" by Optional Setting * Setting and Control "00": Control by Indoor Thermistor for Suction Air In case that "01": Control by Incorrect Optional thermistor of remote...
Page 188 ● Abnormalities of Devices) Action Phenomenon Cause Check Item (Turn OFF Main Switch) Failure of Failure of Thermistor Replace or correctly Discharge Check thermistor by connect wiring when Air Temp. self-checking *2). Disconnected it is abnormal. Thermistor Wire of Thermistor Failure of Remote Indoor Fan Replace if failed.
Page 189 ● Abnormalities of Devices) Action Phenomenon Cause Check Item (Turn OFF Main Switch) Indoor Heat Load is Greater Calculate heat load. Use a bigger unit. than Cooling Capacity Gas Leakage Correctly charge or Shortage Measure superheat. refrigerant after of Refrigerant repairing gas leakage.
Page 190 ● Abnormalities of Devices) Action Phenomenon Cause Check Item (Turn OFF Main Switch) Check Clogging of Outdoor Unit Remove clogging. Heat Exchanger. Obstacles at inlet or Insufficient outlet of outdoor unit Remove obstacles. Air Flow to heat exchanger? Outdoor Unit Heat Is service space for Secure service space.
Page 191 ● Abnormalities of Devices) Action Phenomenon Cause Check Item (Turn OFF Main Switch) Indoor Heat Load is Greater Replace the unit with Calculate heat load. than Heating Capacity a bigger unit. Gas Leakage Correctly charge or Insufficient refrigerant after gas Measure superheat.
Page 192 ● Abnormalities of Devices) Action Phenomenon Cause Check Item (Turn OFF Main Switch) Check for filter clogging. Remove clogging. Insufficient Air Flow to Check for any obstacles Indoor Unit at inlet or outlet of Remove obstacles. Heat indoor unit. Exchanger Check indoor fan speed.
Page 193 ● Abnormalities of Devices) Action Phenomenon Cause Check Item (Turn OFF Main Switch) Foreign Particles Inside Remove foreign Check it by viewing. of Fan Casing particles. Indoor Unit Fan Runner Adjust position of Check it by viewing. is Hitting Casing fan runner.
Page 194 15.4.2 Troubleshooting Procedure Alarm Code Indication of Remote Control Switch Alarm Code ● Alarm Code Table Code Category Content of Abnormality Leading Cause Activation of Float Switch (High Water Level in Drain Pan, Indoor Unit Activation of Protection Device (Float Switch) Abnormality of Drain Pipe, Float Switch or Drain Pan) Activation of Protection Device Activation of PSH (Pipe Clogging, Excessive...
Page 195 Code Category Content of Abnormality Leading Cause Incorrect Capacity Code Setting of Combination Incorrect Capacity Setting of Outdoor Unit and Indoor Unit Capacity Code System Incorrect Setting of Indoor Unit No. Duplication of Indoor Unit No. in same Ref. Gr. Incorrect of Indoor Unit CombinationI ndoor Unit is Designed for R22 Failure of Protection Detecting Device...
Page 196 ● Troubleshooting by Alarm Code Alarm Activation of Protection Device in Indoor Unit Code “RUN” light is flashing and “ALARM” are indicated on the remote control switch. ● The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and ●...
Page 197 Alarm Activation of Protection Device in Outdoor Unit Code “RUN” light is flashing and “ALARM” are indicated on the remote control switch. ● The unit No., alarm code and the unit code are alternately indicated on the set temperature section and the unit No.
Page 198 Action Phenomenon Cause Check Item (Turn OFF Main Switch) Clogging of Heat Remove clogging. Exchanger? Check for dust on Remove dust. air filter. Insufficient Air Flow to Heat Exchanger Check for any obstacles (Outdoor Heat Exchanger at inlet or outlet of Remove obstacles.
Page 199 Action Phenomenon Cause Check Item (Turn OFF Main Switch) Check for clogging. Remove clogging. Check connecting Replace connector. wiring and connectors. Faulty or Malfunction of Check operating sound Replace coil. Expansion Valve from coil. Check discharge gas Replace thermistor. thermistor. Check attaching state of discharge Reattach thermistor.
Page 200 PCB1: Control PCB in Outdoor Unit PCB: Indoor Unit PCB Is DSW10-1P (Terminating Resistance) Set it correctly. on PCB1 ON? Is the voltage Check the fuses of Is LED1 (red) between faston terminal outdoor unit power on PCB1 ON? "R1" and "/" of PCB1 supply.
Page 201 Action Phenomenon Cause Check Item (Turn OFF Main Switch) Measure voltage by Power Failure or No Power Supply Supply power. tester. Check for breakage Remove short circuit Short Circuit between Wires of insulation. and replace fuse. Short Circuited Wire Measure insulation Remove short circuit to Melted Fuse for to Ground...
Page 202 Alarm Abnormal Transmitting between Inverter PCB and Outdoor PCB Code “RUN” light f ashes and “ALARM” is indicated on the remote control switch. The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and ●...
Page 203 * 1): When the unit is applied with excessive surge current due to lighting or other causes, this alarm code “04” or the inverter stoppage code (IT) “11” will be indicated and the unit can not be operated. In this case, check to ensure the surge absorber/surge arrester (SA) on the noise filte (NF1, NF2).
Page 204 Alarm Abnormal Transmitting between Fan Controller and Outdoor PCB Code “RUN” light is flashing and “ALARM” are indicated on the remote control switch. ● The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and ●...
Page 205 Alarm Abnormality Power Source Phase Code “RUN” light is flashing and “ALARM” are indicated on the remote control switch. ● The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and the unit No. and alarm code are indicated on the display of the outdoor unit PCB1. ★...
Page 206 Alarm Abnormal Inverter Voltage Code “RUN” light is flashing and “ALARM” are indicated on the remote control switch. ● The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and ● the alarm code is indicated on the display of the outdoor unit PCB1. PCB1: Control PCB in Outdoor Unit ★...
Page 207 Alarm Abnormal Fan Controller Voltage Code “RUN” light is flashing and “ALARM” are indicated on the remote control switch. ● The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and ● the alarm code is indicated on the display of the outdoor unit PCB1. ★...
Page 208 Alarm Decrease in Discharge Gas Superheat Code “RUN” light is flashing and “ALARM” are indicated on the remote control switch. ● The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and the unit No. and alarm code are indicated on the display of the outdoor unit PCB1. In the case that the discharge gas superheat is less than 10 deg.
Page 209 Action Phenomenon Cause Check Item (Turn OFF Main Switch) Ref. Cycle is Different from Check ref. cycle and Repair wiring. the Electrical System the electrical system. Correctly charge Overcharged Refrigerant Check pressures. refrigerant. Check expansion Replace expansion valve Faulty Expansion Valve if faulty.
Page 210 Alarm Increase in Discharge Gas Temperature at the Top of Compressor Code “RUN” light is flashing and “ALARM” are indicated on the remote control switch. ● The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and the unit No.
Page 211 Action Phenomenon Cause Check Item (Turn OFF Main Switch) Ref. Cycle is Different from Check ref. cycle and Repair wiring. the Electrical System the electrical system. Correctly charge Undercharge of Refrigerant Check pressures. refrigerant. Check expansion valve. Replace expansion valve Faulty Expansion Valve if faulty.
Page 212 Alarm Abnormality Transmitting between Outdoor Units Code “RUN” light is flashing and “ALARM” are indicated on the remote control switch. ● The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and ● the unit No.
Page 213 Alarm Incorrect Outdoor Unit Address Setting Code “RUN” light is flashing and “ALARM” are indicated on the remote control switch. ● The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and the unit No. and alarm code are indicated on the display of the outdoor unit PCB1. PCB1: Control PCB in Outdoor Unit O.U.: Outdoor Unit...
Page 214 Abnormality of Thermistor for Indoor Unit Inlet Air Alarm Temperature (Air Inlet Thermistor) Code “RUN” light is flashing and “ALARM” are indicated on the remote control switch. ● The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and the unit No.
Page 215 Abnormality of Thermistor for Indoor Unit Discharge Air Temperature Alarm Code (Air Outlet Thermistor) “RUN” light is flashing and “ALARM” are indicated on the remote control switch. ● The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and ●...
Page 216 Abnormality of Thermistor for Indoor Unit Heat Exchanger Liquid Alarm Code Refrigerant Pipe Temperature (Freeze Protection Thermistor) “RUN” light is flashing and “ALARM” are indicated on the remote control switch. ● The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and the unit No.
Page 217 Abnormality of Thermistor for Indoor Unit Heat Exchanger Alarm Code Gas Refrigerant Pipe Temperature (Gas Piping Thermistor) “RUN” light is flashing and “ALARM” are indicated on the remote control switch. ● The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and the unit No.
Page 218 Activation of Protection Device for Indoor Fan Motor Alarm Code (AVC-Model) “RUN” light is flashing and “ALARM” are indicated on the remote control switch. ● The unit No., alarm code and the unit code are alternately indicated on the set temperature section, ●...
Page 219 Activation of Protection Device for Indoor Fan Alarm Code Motor (except AVC ) “RUN” light is flashing and “ALARM” are indicated on the remote control switch. ● The unit No., alarm code and the unit code are alternately indicated on the set temperature section, ●...
Page 220 Alarm Abnormality of High Pressure Sensor for Outdoor Unit Code “RUN” light is flashing and “ALARM” are indicated on the remote control switch. The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and the unit No.
Page 221 Abnormality of Thermistor for Outdoor Air Temperature Alarm Code (Outdoor Unit Ambient Thermistor) “RUN” light is flashing and “ALARM” are indicated on the remote control switch. The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and the unit No.
Page 222 Abnormality of Thermistor for Discharge Gas Alarm Temperature on the Top of Compressor Code “RUN” light is flashing and “ALARM” are indicated on the wired remote control switch. The unit No., alarm code and the unit code are alternately indicated on the set temperature section, or the unit No.
Page 223 Abnormality of Thermistor for Outdoor Unit Heat Exchanger Liquid Pipe Alarm Code (Te/Tchg) “RUN” light is flashing and “ALARM” are indicated on the wiredremote control switch. The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and the unit No.
Page 224 Abnormality of Thermistor for Outdoor Unit Heat Exchanger Gas Pipe Alarm Code (Tg/Tbg) “RUN” light is flashing and “ALARM” are indicated on the wired remote control switch. The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and the unit No.
Page 225 Alarm Abnormality of Low Pressure Sensor for Outdoor Unit Code “RUN” light is flashing and “ALARM” are indicated on the wired remote control switch. The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and the unit No.
Page 226 Alarm Incorrect Capacity Setting of Indoor Unit and Outdoor Unit Code “RUN” light is flashing and “ALARM” are indicated on the wirde remote control switch. The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and the unit No.
Page 227 Alarm Abnormal Transmitting between Outdoor Units Code “RUN” light is flashing and “ALARM” are indicated on the wired remote control switch. The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and the unit No. and alarm code are indicated on the display of the outdoor unit PCB1. ★...
Page 228 Alarm Incorrect Indoor Unit No. Setting Code “RUN” light is flashing and “ALARM” are indicated on the wired remote control switch. The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and the alarm code is indicated on the outdoor unit PCB1. ★...
Page 229 Alarm Abnormality of Picking up Circuit for Protection in Outdoor Unit Code “RUN” light is flashing and “ALARM” are indicated on the remote control switch. The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and the unit No.
Page 230 Alarm Abnormality of Running Current at Constant Speed Compressor Code “RUN” light flashes and “ALARM” is indicated on the remote control switch. ● The unit No., alarm code and the unit code is alternately indicated on the set temperature section, and ● the unit No. and alarm code are indicated on the display of the outdoor unit PCB1. ★ This alarm is indicated when the following conditions occurs; • The running current of the constant speed compressor exceeds the value of overcurrent limitation during operating. • The running current of the constant speed compressor is detected 0A and retry when 3 minutes are passed after all compressors are stopped, and this phenomenon occurs three times within 30 minutes. PCB1: Control PCB in Outdoor Unit Does the CMC2 Check wiring connection turn ON? around PCB1. Check fuses and wiring Does the constant speed between CMC2 and compressor operate? constant speed compressor.
Page 231 Action Phenomenon Cause Check Item (Turn OFF Main Switch) Excessively High or Operate within Low Voltage of 380-415V ±10% Power Source Excessively Large Running Current of Imbalance Among Adjust voltage between Compressor Motor Phase at Power Source each phase. Excessively High Check for causes.
Page 232 Alarm Abnormality of Outdoor Unit Capacity Code “RUN” light is flashing and “ALARM” are indicated on the remote control switch. The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and the unit No. and alarm code are indicated on the outdoor unit PCB1. ★...
Page 233 Alarm Abnormality Transmitting between Main Unit and Sub Unit(s) Code “RUN” light is flashing and “ALARM” are indicated on the wired remote control switch. The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and the unit No.
Page 234 Alarm Activation of Low Compression Ratio Protection Device Code “RUN” light is flashing and “ALARM” is indicated on the remote control switch. The unit No., alarm code and the unit code is alternately indicated on the set temperature section, and the unit No.
Page 235 Alarm Activation of Low Pressure Increase Protection Device Code “RUN” light is flashing and “ALARM” are indicated on the remote control switch. The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and the unit No. and alarm code are indicated on the outdoor unit PCB1. ★...
Page 236 Alarm Activation of High Pressure Increase Protection Device Code “RUN” light is flashing and “ALARM” are indicated on the remote control switch. The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and the unit No.
Page 237 Activation of Low Pressure Decrease Protection Device Alarm (Vacuum Operation Protection) Code “RUN” light is flashing and “ALARM” are indicated on the remote control switch. The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and the unit No.
Page 238 Alarm Activation of Inverter Overcurrent Protection Device (1) Code “RUN” light is flashing and “ALARM” are indicated on the remote control switch. The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and the unit No. and alarm code are indicated on the outdoor unit PCB1. ★...
Page 239 Alarm Activation of Inverter Overcurrent Protection Device (2) Code “RUN” light is flashing and “ALARM” are indicated on the remote control switch. The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and the unit No.
Page 240 Alarm Abnormality of Inverter Current Sensor Code “RUN” light is flashing and “ALARM” are indicated on the remote control switch. The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and the unit No. and alarm code are indicated on the outdoor unit PCB1. ★...
Page 241 Alarm Inverter Error Signal Detection Code “RUN” light is flashing and “ALARM” are indicated on the remote control switch. The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and the unit No. and alarm code are indicated on the outdoor unit PCB1. ★...
Page 242 NOTE: When the unit is applied the excessive surge current due to lighting or other causes, this alarm code “53” or the inverter stoppage code (IT) “11” will be indicated and the unit can not be operated. In this case, check to ensure the surge absorber/surge arrester (SA) on the noise filte (NF1, NF2).
Page 243 Alarm Abnormality of Inverter Fin Temperature Code “RUN” light is flashing and “ALARM” are indicated on the remote control switch. The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and the unit No. and alarm code are indicated on the outdoor unit PCB1. In case that the abnormality of inverter fin temperature occurs three times within 30 minutes, this alarm ★...
Page 244 Alarm Inverter Failure Code “RUN” light is flashing and “ALARM” are indicated on the remote control switch. The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and the unit No. and alarm code are indicated on the outdoor unit PCB1. ★...
Page 245 Alarm Activation of Fan Controller Protection Code “RUN” light is flashing and “ALARM” are indicated on the remote control switch. The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and the unit No. and alarm code are indicated on the outdoor unit PCB1. ★...
Page 246 Alarm Abnormality of Fan Controller Fin Temperature Code “RUN” light is flashing and “ALARM” are indicated on the remote control switch. The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and the unit No. and alarm code are indicated on the outdoor unit PCB1. ★...
Page 247 Alarm Activation of Fan Controller Overcurrent Protection Device (1) Code “RUN” light is flashing and “ALARM” are indicated on the remote control switch. The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and the unit No.
Page 248 Alarm Activation of Fan Controller Overcurrent Protection Device (2) Code “RUN” light is flashing and “ALARM” are indicated on the remote control switch. The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and the unit No.
Page 249 Alarm Abnormality of Fan Controller Sensor Code ★ Conditions of Activation: This alarm is indicated when the following condition occurs. After fan motor operation is started, fan controller current does NOT exceed 1.5A. Before fan motor operation is started, fan controller peak current does NOT exceed 4A. Restart operation.
Page 250 Alarm Incorrect Setting of Unit and Refrigerant Cycle No. Code “RUN” light is flashing and “ALARM” are indicated on the remote control switch. The unit No., alarm code and the unit code are alternately indicated on the set temperature section, and alarm code is indicated on the display of the outdoor unit PCB.
Page 251 15.5 (HYXE-J01H)
Page 252 15.5.1 Contents of Detection Mode 1 Press check1 button, the next content will be displayed. Press “∧” “∨”the previous content will be displayed. Type code display Temperature display Display of temperature and others Normal Temperature display Indoor temperature setting (℃) Thermistor open circuit or PCB fault Compressor top temperature Abnormal...
Page 253 Remoter sensed humidity (optional). Heating temperature control starts ABNML Cooling temperature Microcomputer output/ input display control starts Dark Indoor unit microcomputer input/ output. Outdoor unit microcomputer input/ output. Dark Outdoor fan Symbols with the letter “Y” are PCB relays. Stop the operation and turn off the power Temperature control switch (Tip1) Alarm (Tip2) Shutdown cause display...
Page 254 Compressor pressure/ frequency display Exhaust pressure (high pressure) (0.1MPa) Air inlet pressure (low pressure) (0.01MPa) Control information It shows the internal information of the remoter. There’s no special meaning. When two compressors are running together, it displays the total Operation frequency (Hz) frequency.
Page 255 15.5.2 Contents of Detection Mode 2 When over three units are connected to one remoter, the updated parameters of the first three indoor units will be displayed. Press ‘check2” button, the next content will be displayed. Press “V" the previous content will be displayed. Type code display Temperature display Display of temperature and others...
Page 256 Compressor pressure/ frequency display Exhaust pressure (high pressure) (0.1MPa) Air inlet pressure (low pressure) (0.1MPa) It displays the internal information of the remoter. Control information There’s no special meaning. Operation frequency When two compressors are running at the same time, (Hz) it’ll display the total frequency.
Page 257 Temperature display ● Troubleshooting by 7-Segment Display Only the authorized person can check with this method. Operating conditions and each part of refrigeration cycle can be checked by 7-segments and push switches on the PCB1 in the outdoor unit. (1) Before Checking (a) Turn ON main power source.
Page 258 ● Protection Control Code on 7-Segment Display * Protection control code is displayed on 7-segment during operation when a protection control is activated. * Protection control code is displayed while function is working, and goes out when released. * When several protection control are activated, code number with higher priority will be indicated (see below for the priority order).
Page 259 (4) Activating Condition of Protection Retry Control Code Protection Control or Retry Control is performed to prevent the abnormal operation. The activating conditions are shown in the table below. Code Protection Control Activating Condition Remarks Compression Ratio e>8.5 Pressure Ratio Protection Control Compression Ratio e<2.0 Discharge Pressure...
Page 260 (5) Alarm Code Refer to the section 15.4.2 (6) Checking Method by Checking Mode Menu Press PSW1 for once. To Start Checking Press PSW1 more than (A) Outdoor Combination Unit No. Check Mode 3 seconds. “CHEC” The outdoor combination unit No. is “Menu”...
Page 261 (C) Outdoor Unit Information Unit Indication Select the outdoor combination unit No. for indication. When the selection is changed, press PSW4 ( ) to forward or PSW2 ( ) to backward. Unit A (No.0) Select the outdoor combination unit No. for indication by pressing PSW4 or PSW2. Unit B (No.2) Press PSW3 ( ) for details information.
Page 262 (D) Indoor Unit Information Unit No. Indication This information is indicated on the unit A (main unit) only. Select the indoor unit number for the information indication. No.0 Press PSW4 ( ) to forward or press PSW2 ( ) for backward. No.1 Select the indoor unit No.
Page 263 (F) Alarm Code History Information 7-Segment Display This information is indicated on the unit A (main unit) only. Data No. If history of abnormality exists, it is indicated maximum 15 case in chronological order. SEG2 SEG1 Press PSW4 ( ) to forward or press PSW2 ( ) for backward.
Page 264 (7) Running Current of Compressor Inverter Primary Current ● The inverter primary current is estimated from the running current of the compressor MC1 indicated on 7-segment, as chart below. 380-415V Upper Limit Lower Limit Running Current of Compressor MC1 Indicated on 7- segment Indicated Running Current of Compressor MC2 ●...
Page 265 Appendix Service and Maintenance Record by 7-Segment Display Customer’s Name DATE: Outdoor Unit Model (Serial No. ) AVWT- (Serial No. AVWT- (Serial No. (1) Operation Mode (2) Test Run Start Time (3) Data Collect Start Time (4) Read Out Data from 7-Segment in Outdoor Unit Protection Control Code Operating Capacity Outdoor Total Connecting Capacity...
Page 266 Service and Maintenance Record by Remote Control Switch Data Sheet for Checking by Remote Control Switch Time I.U. Model I.U. Serial No. I.U. No. / Alarm Code Check Check Mode Mode 1 • 2 1 • 2 1 • 2 1 •...
Page 267 Service & Maintenance Record Service and Maintenance Record Check Item Action Judgement Is service space sufficient YES or NO Short Circuit of Discharge Air? YES or NO Any Heat Influenc YES or NO Is earth wire connected? YES or NO Refrigeration Piping GOOD or NOT GOOD Fixing of Units...
Page 268 16. Appendix Saturation Curve for Refrigerant R407C R404A R507A R410A R134a R407E REFPROP Ver.5.10 -0.5 Saturation Temperature (Liquid) [...
Page 269 Mollier Chart for R410A...

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