Airwell AW-CFM012-N11 Service Manual
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Airwell AW-CFM012-N11 Service Manual

Airwell AW-CFM012-N11 Service Manual

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CFM Indoor Units
AW-CFM012-N11
AW-CFM018-N11
AW-CFM024-N11
AW-CFM036-N11
AW-CFM036T-N11
AW-CFM048-N11
50Hz R410A ON/OFF SERIES
DFM Indoor Units
AW-DFM018-N11
AW-DFM024-N11
AW-DFM036-N11
AW-DFM036T-N11
AW-DFM048-N11
AW-DFM060-N11
FFM Indoor Units
AW-FFM018-N11
AW-FFM024-N11
AW-FFM036-N11
AW-FFM036T-N11
AW-FFM048-N11
AW-FFM060-N11
Service Manual 2019
Outdoor Units
AW-YFFA012-H11
AW-YFFA018-H11
AW-YFFA024-H11
AW-YFFA036-H11
AW-YFFA036-H13
AW-YFFM48-H13
AW-YFFA048-H13
AW-YFFA060-H13

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Summary of Contents for Airwell AW-CFM012-N11

  • Page 1 CFM Indoor Units DFM Indoor Units FFM Indoor Units Outdoor Units AW-YFFA012-H11 AW-CFM012-N11 AW-DFM018-N11 AW-FFM018-N11 AW-CFM018-N11 AW-YFFA018-H11 AW-FFM024-N11 AW-CFM024-N11 AW-DFM024-N11 AW-YFFA024-H11 AW-DFM036-N11 AW-CFM036-N11 AW-YFFA036-H11 AW-FFM036-N11 AW-FFM036T-N11 AW-DFM036T-N11 AW-YFFA036-H13 AW-CFM036T-N11 AW-FFM048-N11 AW-YFFM48-H13 AW-CFM048-N11 AW-DFM048-N11 AW-YFFA048-H13 AW-DFM060-N11 AW-FFM060-N11 AW-YFFA060-H13 50Hz R410A ON/OFF SERIES...
  • Page 2 Content Part 1 General Information ..............1 Part 2 Indoor Units ................. 5 Part 3 Outdoor Units ................64 Part 4 Installation ..................79 Part 5 Electrical Control System ............112 ※The specifications, designs, and information in this book are subject to change without notice for product improvement.
  • Page 3 General Information Part 1 General Information 1. Model Lists ................2 2. External Appearance ............. 3...
  • Page 4 Model Lists 1. Model Lists 1.1 Indoor Units Type Function Cassette 90x90 Cooling and heating ● ● ● ● Ducted Cooling and heating ● ● ● ● ● ● Ceiling-floor Cooling and heating ● ● ● ● ● ● Cassette 60x60 Cooling and heating ●...
  • Page 5 External Appearance 2. External Appearance 2.1 Indoor Units CFM 12-18 CFM 24-48 DFM Middle static pressure duct Ceiling & floor type...
  • Page 6 External Appearance 2.2 Outdoor Units Single fan outdoor unit Double fan outdoor unit...
  • Page 7 Indoor Units Part 2 Indoor Units CFM012 & 18 Four-way Cassette Type (Compact) ................6 CFM 24- 48 Super-slim Cassette Type ..................16 DFM Duct Type ..............32 FFM Ceiling & Floor Type ..........50...

  • Page 8: Table Of Contents

    MLCAC-UTSM-2010-10 New Four-way Cassette Type Four-way Cassette Type (Compact) Features ....................7 Dimensions ....................8 Service Space ..................9 Air Velocity and Temperature Distributions(Reference Data) ..10 Wiring Diagrams ................. .11 Electric Characteristics ............... 12 Sound Levels ..................12 Accessories ..................13 The Specification of Power ..............

  • Page 9: Features

    Features Features 1.1 New panel 360°surrounding air outlet design, affords comfortable feeling  1.2 Compact design The body size is 570×260×570mm, it’s just smaller than the ceiling board, so it’s very easy for  installation and will not damage the decoration. The panel size is 647×50×647mm. The hooks are designed in the four corners of the body, which can save installation space.

  • Page 10: Dimensions

    Dimensions Dimensions...

  • Page 11: Service Space

    Service Space Service Space...

  • Page 12: Air Velocity And Temperature Distributions(Reference Data)

    Air Velocity and Temperature Distributions(Reference Data) Air Velocity and Temperature Distributions(Reference Data) Airflow velocity Temperature...

  • Page 13: Wiring Diagrams

    Wiring Diagrams Wiring Diagrams MCA3-12HRN1-Q, MCA3-18HRN1-Q...

  • Page 14: Electric Characteristics

    Electric Characteristics Electric Characteristics Power Indoor Units Supply Model Voltage Min. Max. AW-CFM012-N11 220-240V 254V 198V AW-CFM018-N11 220-240V 198V 254V Note: MFA: Max. Fuse Amps. (A) Sound Levels 1.4m Microphone Noise level dB(A) Model AW-CFM012-N11 AW-CFM018-N11...

  • Page 15: Accessories

    Indoor Units Accessories Name Shape Quantity 1. Expansible hook Installation fittings 2. Installation hook 3. Installation paper board 4. Out-let pipe sheath 5. Out-let pipe clasp Drainpipe Fittings 6. Tightening band 7. Drain joint 8. Remote controller Remote controller & Its 9.

  • Page 16: The Specification Of Power

    The Specification of Power The Specification of Power AW-CFM012-N11 Type AW-CFM018-N11 Phase 1-phase Power Frequency and Voltage 220-240V, 50Hz 20/16 Circuit Breaker/ Fuse (A) 3×2.5 Indoor Unit Power Wiring (mm Ground Wiring 3×2.5 Outdoor Unit Power Wiring Indoor/Outdoor Connecting Wiring Strong Electric Signal 2×1.0...

  • Page 17: Field Wiring

    Indoor Units Field Wiring...
  • Page 18 Super-slim Cassette Type Super-slim Cassette Type 1. Features ................17 2. Dimensions ..............20 3. Service Space ..............21 4. Wiring Diagrams ............. 22 5. Electric Characteristics ..........25 6. Sound Levels ..............26 7. Accessories ..............27 8. The Specification of Power ..........28 9.

  • Page 19: Features

    Features 1. Features 1.1 Overview Compact design, super slim body size, less space requiring in installation  Each louver can be separately controlled, more comfort air blowing is possible.  Auto-lifting panel design, more convenient to clean and maintain the filter. (optional) ...
  • Page 20 Features Ionizer generator Ventilation motor connector connector Ionizer can be switched on or off by remote controller.  When pressing the Clean Air button on the remote controller, Ionizer will work and the indicator light on display board will shine. 1.4 External air duct design Reserve external air duct, more flexible for the air supply.
  • Page 21 Features Draining Pump Built-in draining pump to make sure condensed water drain out reliably.  1.6 Terminals for alarm lamp and long-distance on-off controller connection are standard Reserve terminals for the connection of alarm lamp and long-distance on-off controller, more human ...

  • Page 22: Dimensions

    Dimensions 2. Dimensions 92 92 Fresh air intake 4-install hanger Body Gas side Liquid side Wiring connection port E-parts box Service hole for Test mouth & Test cover draining pump Drain hole 92 92 92 92 Panel Unit: mm Model 18/24 30~48...

  • Page 23: Service Space

    Service Space 3. Service Space >1000m m >1000mm...

  • Page 24: Wiring Diagrams

    Wiring Diagrams 4. Wiring Diagrams AW-CFM024-N11;AW-CFM036-N11...
  • Page 25 Indoor Units AW-CFM036T-N11...
  • Page 26 Wiring Diagrams AW-CFM048-N11...

  • Page 27: Electric Characteristics

    Indoor Units 5. Electric Characteristics Indoor Unit Power Supply Model Voltage AW-CFM018-N11 220-240V 198V 254V AW-CFM024-N11 220-240V 198V 254V AW-CFM036-N11 220-240V 198V 254V AW-CFM036T-N11 220-240V 198V 254V AW-CFM048-N11 380-415V 342V 436V Notes: MFA: Max. Fuse Amps. (A)

  • Page 28: Sound Levels

    Sound Levels 6. Sound Levels 1.4m Microphone Noise level dB(A) Model AW-CFM018-N11 AW-CFM024-N11 AW-CFM036-N11 AW-CFM036T-N11 AW-CFM048-N11...

  • Page 29: Accessories

    Indoor Units 7. Accessories Name Shape Quantity Installation paper board INSTALLATION FITTINGS Bolt M5 Tubing & Fittings Soundproof / insulation sheath Out-let pipe Out-let pipe sheath Drainpipe Fittings Out-let pipe clasp Remote controller & Its Frame Remote controller holder Remote controller & Its Frame Mounting screw(ST2.9×10-C-H) Remote controller manual...

  • Page 30: The Specification Of Power

    The Specification of Power 8. The Specification of Power Cooling only: Heating pump: Model (KBtu/h) 48~60 Phase 1-phase 1-phase 1-phase 3-phase 3-phase Power Frequency 220-240V, 50Hz 380-415V, 50Hz Voltage Circuit Breaker/ Fuse (A) 25/20 32/25 50/40 25/20 32/25 Indoor Unit Power Wiring (mm 3×2.5 3×2.5 3×1.5...

  • Page 31: Field Wiring

    Indoor Units 9. Field Wiring AW-CFM012-N11; AW-CFM018-N11 AW-CFM024-N11,AW-CFM036-N11...
  • Page 32 Field Wiring AW-CFM024-N11 AW-CFM036-N11...
  • Page 33 Indoor Units AW-CFM036T-N11 AW-CFM048-N11...
  • Page 34 DFM Duct Type 1. Features ................33 2. Dimensions ..............35 3. Service Space ..............36 4. Wiring Diagrams .............. 37 5. Static Pressure ..............41 6. Electric Characteristics ........... 43 7. Sound Levels ..............44 8. Accessories ..............45 9.

  • Page 35: Features

    Features 1. Features 1.1 Slim Design The industry Lowest height is designed to be fitted into tight roof spaces.  *18K unit - 210mm,24K/30K unit - 249mm，36K unit -300mm 1.3 Flexible Air Intake Way (Bottom side or Rear side) The frame size of air inlet in rear and bottom is the same. It’s very easy to switch to match different ...
  • Page 36 Features...

  • Page 37: Dimensions

    Dimensions 2. Dimensions Note: standard product without filter Unit: mm Size of install Outline dimension(mm) Air outlet opening size Air return opening size Size of refrigerant pipe hanger Model 24K~36K 1100 1001 1140 48K~60K 1200 1044 1101 1240...

  • Page 38: Service Space

    Service Space 3. Service Space Ensure enough space required for installation and maintenance. There is enough space for installation and maintenance. The ceiling is horizontal, and its structure can endure the weight of the indoor unit. The outlet and the inlet are not impeded, and the influence of external air is the least.

  • Page 39: Wiring Diagrams

    Wiring Diagrams 4. Wiring Diagrams AW-DFM018-N11 AW-DFM018-N11...
  • Page 40 Wiring Diagrams AW-DFM036-N11 AW-DFM036T-N11...
  • Page 41 Wiring Diagrams AW-DFM048-N11...
  • Page 42 Wiring Diagrams AW-DFM060-N11...

  • Page 43: Static Pressure

    Static Pressure Static Pressure 1200 1000 External Static Pressure（pa） 1600 1400 1200 1000 External Static Pressure (Pa)
  • Page 44 Static Pressure 30K,36K 2500 2000 1500 1000 External Static Pressure (Pa) 48K, 60K 3000 2500 2000 1500 1000 External Static Pressure (Pa)

  • Page 45: Electric Characteristics

    Electric Characteristics lectric Characteristics Power Supply Indoor Units Model Voltage Min. Max. AW-DFM018-N11 220-240V 198V 254V AW-DFM024-N11 220-240V 198V 254V AW-DFM036-N11 220-240V 198V 254V AW-DFM036T-N11 220-240V 198V 254V 342V AW-DFM048-N11 380-415V 436V 436V 380-415V 342V AW-DFM060-N11 Note: MFA: Max. Fuse Amps. (A)

  • Page 46: Sound Levels

    Sound Levels 7. Sound Levels Concealed Duct Type Discharge Suction Duct Duct 1.4m Microphone Noise level dB(A) Model AW-DFM018-N11 AW-DFM024-N11 AW-DFM036-N11 AW-DFM036T-N11 AW-DFM048-N11 48.5 AW-DFM060-N11...

  • Page 47: Accessories

    Accessories 8. Accessories Name Shape Quantity Soundproof/insulation sheath Tubing & Fittings Binding tape Seal sponge Drain joint Drainpipe Fittings (for cooling &heating units) Seal ring Wire controller Wire controller Owner's manual others Installation manual...

  • Page 48: The Specification Of Power

    The Specification of Power 9. The Specification of Power Heating pump: Model(KBtu/h) 30-36 Phase 1-phase 1-phase 1-phase Power Frequency and Voltage 220-240V, 50Hz Circuit Breaker/ Fuse (A) 25/20 32/25 50/40 Indoor Unit Power Wiring (mm 3×2.5 3×2.5 Ground Wiring Outdoor Unit Power Wiring 3×2.5 3×2.5 3×4.0...

  • Page 49: Field Wiring

    Field Wiring 10. Field Wiring AW-DFM018-N11 AW-DFM024-N11...
  • Page 50 Field Wiring AW-DFM036-N11 AW-DFM036T-N11...
  • Page 51 Field Wiring AW-DFM048-N11;AW-DFM060-N11...
  • Page 52 Ceiling & Floor Type Ceiling & Floor Type 1. Features ................51 2. Dimensions ..............52 3. Service Space ..............53 4. Wiring Diagram ..............54 5. Electric Characteristics ........... 57 6. Sound Levels ..............58 7. Accessories ..............59 8.

  • Page 53: Features

    Features Features 1.1. New design, more modern and elegant appearance. 1.2. Convenient installation --The ceiling type can be easily installed into a corner of the ceiling even if the ceiling is very narrow --It is especially useful when installation of an air conditioner in the center of the ceiling is impossible due to a structure such as one lighting.

  • Page 54: Dimensions

    Dimensions Dimensions Wiring connection port Drain discharge port Fresh air intake Refrigerant pipe hole Hanging arm Capacity (Btu/h) 12~24K 1068 30~36K 1285 1200 48~60K 1650 1565...

  • Page 55: Service Space

    Service Space Service Space...

  • Page 56: Wiring Diagram

    Wiring Diagram Wiring Diagram AW-FFM018-N11 AW-FFM024-N11...
  • Page 57 Wiring Diagram AW-FFM036T-N11 AW-FFM036T-N11...
  • Page 58 Wiring Diagram AW-FFM048-N11;AW-FFM060-N11...

  • Page 59: Electric Characteristics

    Electric Characteristics Electric Characteristics Indoor Units Power Supply Model Voltage Min. Max. AW-FFM018-N11 220-240V 198V 242V AW-FFM024-N11 220-240V 198V 242V AW-FFM036-N11 220-240V 198V 242V 198V AW-FFM036T-N11 220-240V 242V AW-FFM048-N11 342V 436V 380-415V 380-415V 436V AW-FFM060-N11 342V Remark: MFA: Max. Fuse Amps. (A)

  • Page 60: Sound Levels

    Sound Levels Sound Levels Microphone 1.5m Air outlet side Microphone Ceiling Floor Noise level dB(A) Model AW-FFM018-N11 AW-FFM024-N11 AW-FFM036-N11 AW-FFM036T-N11 AW-FFM048-N11 AW-FFM060-N11...

  • Page 61: Accessories

    Accessories Accessories 1. Remote controller Remote controller & Its 2. Remote controller holder holder 3. Mounting screw (ST2.9×10-C-H) 4. Alkaline dry batteries (AM4) 5. Owner's manual Others 6. Installation manual 7. Remote controller manual...

  • Page 62: The Specification Of Power

    The Specification of Power The Specification of Power Heating pump: Model (KBtu/h) 30-36 48~60 Phase 1-phase 1-phase 1-phase 3-phase 3-phase Power Frequency 220-240V, 50Hz 380-415V, 50Hz Voltage Circuit Breaker/ Fuse (A) 25/20 32/25 50/40 25/20 32/25 Indoor Unit Power Wiring (mm 3×2.5 3×2.5 5×2.5...

  • Page 63: Field Wiring

    Field Wiring Field Wiring AW-FFM018-N11...
  • Page 64 Field Wiring AW-FFM024-N11 AW-FFM036T-N11...
  • Page 65 Field Wiring AW-FFM036-N11 AW-FFM048-N11;AW-FFM060-N11...
  • Page 66 Outdoor Units Part 3 Outdoor Units 1. Dimensions ..............65 2. Service Space ..............67 3. Piping Diagrams .............. 68 4. Wiring Diagrams .............71 5. Electric Characteristics ..........76 6. Operation Limits .............77 7. Sound Levels ..............78...

  • Page 67: Dimensions

    Dimensions 1. Dimensions Unit：mm Model AW-YFFA012-H11 AW-YFFA018-H11 AW-YFFA024-H11 AW-YFFA036-H11 1030 AW-YFFA036-H13...
  • Page 68 Dimensions Unit：mm Model AW-YFFA048-H13 1170 AW-YFFM048-H13 1170 AW-YFFA060-H13 1170...

  • Page 69: Service Space

    Service Space 2.Service Space (Wall or obstacle) Air inlet More than 30cm More than 60cm More than 30cm Maintain channel Air inlet More than 60cm Air outlet More than 200cm...

  • Page 70: Piping Diagrams

    Piping Diagrams 3. Piping Diagrams AW-YFFA012-H11 ; AW-YFFA018-H11 INDOOR OUTDOOR CHECK VALVE LIQUID SIDE (Heating Model only) 2-WAY VALVE T3 Condenser temp. sensor CAPILIARY TUBE HEAT HEAT EXCHANGE EXCHANGE (EVAPORATOR) (CONDENSER) T1 Room temp. sensor T2 Evaporator temp. sensor GAS SIDE 4-WAY VALVE 3-WAY VALVE ACCUMULATOR...
  • Page 71 Piping Diagrams AW-YFFA024-H11 INDOOR OUTDOOR LIQUID SIDE Throttle orifice 2-WAY VALVE T3 Condenser temp. sensor HEAT HEAT EXCHANGE EXCHANGE (EVAPORATOR) (CONDENSER) T1 Room temp. sensor T2 Evaporator temp. sensor GAS SIDE 4-WAY VALVE 3-WAY VALVE ACCUMULATOR COOLING COMPRESSOR HEATING AW-YFFA036-H11 ; AW-YFFA036-H13 ; AW-YFFA048-H13 INDOOR OUTDOOR LIQUID SIDE...
  • Page 72 Piping Diagrams AW-YFFM048-H13 ; AW-YFFA060-H13 INDOOR OUTDOOR CHECK VALVE LIQUID SIDE (Heating Model only) 2-WAY VALVE T3 Condenser temp. sensor CAPILLARY TUBE HEAT EXCHANGE HEAT (EVAPORATOR) T4 Ambient T1 Room temp. EXCHANGE temp. sensor sensor (CONDENSER) T2 Evaporator temp. sensor GAS SIDE 4-WAY VALVE 3-WAY VALVE...

  • Page 73: Wiring Diagrams

    Wiring Diagrams 4. Wiring Diagrams AW-YFFA012-H11 ; AW-YFFA018-H11 AW-YFFA012-H11...
  • Page 74 Wiring Diagrams AW-YFFA024-H11...
  • Page 75 Wiring Diagrams AW-YFFA036-H11...
  • Page 76 Wiring Diagrams AW-YFFA036-H13 AW-YFFA048-H13...
  • Page 77 Wiring Diagrams AW-YFFA060-H13...

  • Page 78: Electric Characteristics

    Electric Characteristics 5. Electric Characteristics Outdoor Unit Power Supply Model Voltage Min. Max. AW-YFFA012-H11 220~240V 198V 254V 220~240V 198V 254V AW-YFFA018-H11 220~240V 198V 254V AW-YFFA024-H11 220~240V 198V 254V AW-YFFA036-H11 380~415V 436V AW-YFFA036-H13 342V 380~415V 436V AW-YFFA048-H13 342V 436V 380~415V AW-YFFA060-H13 342V Notes: MFA: Max.

  • Page 79: Operation Limits

    Operation Limits 6. Operation Limits Temperature Cooling operation Heating operation Mode Room temperature 17℃～32℃ 0℃～30℃ 18℃～43℃ （-7℃～43℃：For the -7℃～24℃ Outdoor temperature models with low temperature cooling system） Cooling Heating With Low Ambient Cooling System Indoor temperature( ℃ WB) Indoor temperature( ℃ WB)

  • Page 80: Sound Levels

    Sound Levels 7. Sound Levels Outdoor Unit Microphone 1.0m Note: H= 0.5 × height of outdoor unit Model Noise level dB(A) AW-YFFA012-H11 AW-YFFA018-H11 AW-YFFA024-H11 AW-YFFA036-H11 AW-YFFA036-H13 AW-YFFA048-H13 AW-YFFA060-H13...
  • Page 81 Installation Part 4 Installation 1. Installation Procedure .............80 2. Location selection ............81 3. Indoor unit installation ............83 4. Outdoor unit installation (Side Discharge Unit) ..102 5. Refrigerant pipe installation .........103 6. Drainage pipe installation ..........104 7.

  • Page 82: Installation Procedure

    Installation Procedure 1. Installation Procedure Indoor unit installation Outdoor unit installation location selection location selection Indoor unit installation Outdoor unit installation Refrigerant pipe Refrigerant pipe installation and insulation installation and insulation Drainage pipe installation Drainage pipe installation and insulation and insulation Vacuum drying and leakage checking Additional refrigerant charge Insulation the joint part of refrigerant pipe...

  • Page 83: Location Selection

    Location selection 2. Location selection 2.1 Indoor unit location selection  The place shall easily support the indoor unit’s weight.  The place can ensure the indoor unit installation and inspection.  The place can ensure the indoor unit horizontally installed. ...
  • Page 84 Indoor unit installation 3. Indoor unit installation 3.1 Compact cassette indoor unit installation 3.1.1 Service space for indoor unit 3.1.2 Bolt pitch 3.1.3 Install the pendant bolt Select the position of installation hooks according to the hook holes positions showed in upper picture. Drill four holes of Ø12mm, 45~50mm deep at the selected positions on the ceiling.

  • Page 85: Indoor Unit Installation

    Indoor unit installation Face the concave side of the installation hooks toward the expansible hooks. Determine the length of the installation hooks from the height of ceiling, then cut off the unnecessary part. If the ceiling is extremely high, please determine the length of the installation hook depending on the real situation.
  • Page 86 Indoor unit installation 3.1.5 Install the panel Remove the grille Hang the panel to the hooks on the mainbody. Tighten the screws under the panel hooks till the panel closely stick on the ceiling to avoid condensate water.
  • Page 87 Indoor unit installation Hang the air-in grill to the panel, then connect the lead terminator of the swing motor and that of the control box with corresponding terminators on the body respectively. Note: The panel shall be installed after the wiring connected. 3.2 Super-slim cassette indoor unit installation 3.2.1 Service space for indoor unit Model...
  • Page 88 Indoor unit installation 3.2.3 Install the pendant bolt Select the position of installation hooks according to the hook holes positions showed in upper picture. Drill four holes of Ø12mm, 45~50mm deep at the selected positions on the ceiling. Then embed the expansible hooks (fittings).
  • Page 89 Indoor unit installation Locate the air conditioner firmly by wrenching the nuts after having adjusted the body's position well. 3.2.5 Install the panel Remove the grille Remove the 4 corner covers. Hang the panel to the hooks on the mainbody. If the panel is with auto - lift grille, please watch the ropes lifing the grille, DO NOT make the ropes enwinded or blocked.
  • Page 90 Indoor unit installation Tighten the screws under the panel hooks till the panel closely stick on the ceiling to avoid condensate water.
  • Page 91 Indoor unit installation Hang the air-in grill to the panel, then connect the lead terminator of the swing motor and that of the control box with corresponding terminators on the body respectively. Install the 4 corner covers back. Note: The panel shall be installed after the wiring connected. 3.3 A5 duct indoor unit installation 3.3.1 Service space for indoor unit 3.3.2 Bolt pitch...
  • Page 92 Indoor unit installation Size of outline dimension mounted plug Capacity (KBtu) 9/12 30/36 1180 48/60 1240 3.3.3 Install the pendant bolt Select the position of installation hooks according to the hook holes positions showed in upper picture. Drill four holes of Ø12mm, 45~50mm deep at the selected positions on the ceiling. Then embed the expansible hooks (fittings).
  • Page 93 Indoor unit installation 3.3.5 Install the air filter Insert the air filter through the filter slot and fix it with 2 screws. 3.3.6 Install the air duct Please design the air duct as below recommended picture 3.3.7 Change the air inlet direction ①...
  • Page 94 Indoor unit installation ③ When install the filter mesh, please plug it into flange inclined from air return opening, and then push up. ④ The installation has finish, upon filter mesh which fixing blocks have been insert to the flange positional holes.
  • Page 95 Indoor unit installation Size of outline dimension mounted plug Capacity 24K~36K 1140 48K~60K 1240 3.4.3 Hang indoor unit 1.Please refer to the upper data to locate the four positioning screw bolt hole on the ceiling. Be sure to mark the areas where ceiling hook holes will be drilled. 2.
  • Page 96 Indoor unit installation Note: Confirm the minimum drain tilt is 1/100 or more. 3.4.4 Duct and accessories installation 1. Install the filter(optional) according to air inlet size. 2. Install the canvas tie - in between the body and duct. 3. Air inlet and air outlet duct should be apart far enough to avoid air passage short - circuit. 4.
  • Page 97 Indoor unit installation ③ When install the filter mesh, please plug it into flange as shown in figure below. NOTE: All the figures in this manual are for explanation purpose only. They may be slightly different from the air conditioner you purchased. The actual unit shall prevail.
  • Page 98 Indoor unit installation 3.5 HESP duct indoor unit installation 3.1 Service space for indoor unit 500mm or more 600mm or more Indoor unit Maintenance and repair space 600mmx600mm 3.2 Bolt pitch Size of mounted lug Capacity (KBtu) 1146 48/60 1236 3.3 Install the pendant bolt Select the position of installation hooks according to the hook holes positions showed in upper picture.
  • Page 99 Indoor unit installation 3.4 Install the main body Make the 4 suspender through the 4 hanger of the main body to suspend it. Adjust the hexangular nuts on the four installation hooks evenly, to ensure the balance of the body. Use a leveling instrument to make sure the levelness of the main body is within ±1°.
  • Page 100 Indoor unit installation 3.6 Ceiling & floor indoor unit installation 3.6.1 Service space for indoor unit 3.6.2 Bolt pitch ① Ceiling installation Capacity (Btu/h) 12-24K 30~36K 1200 48-60K 1565 ② Wall-mounted installation...
  • Page 101 Indoor unit installation 3.6.3 Install the pendant bolt ① Ceiling installation Select the position of installation hooks according to the hook holes positions showed in upper picture. Drill four holes of Ø12mm, 45~50mm deep at the selected positions on the ceiling. Then embed the expansible hooks (fittings).
  • Page 102 Indoor unit installation Locate the hanging arm on the hanging screw bolt. Prepare the mounting bolts on the unit. Put the side panels and grilles back.
  • Page 103 Indoor unit installation ② Wall-mounted installation Hang the indoor unit by insert the tapping screws into the hanging arms on the main unit. (The bottom of body can touch with floor or suspended, but the body must install vertically.) 3.7 GA floor standing indoor unit installation 3.7.1 Service space for indoor unit a.

  • Page 104: Outdoor Unit Installation (Side Discharge Unit)

    Outdoor unit installation (Side Discharge Unit) 4. Outdoor unit installation (Side Discharge Unit) 4.1 Service space for outdoor unit (Wall or obstacle) More than 30cm Air inlet More than 60cm More than 30cm Maintain channel Air inlet More than 60cm Air outlet More than 200cm 4.2 Bolt pitch...

  • Page 105: Refrigerant Pipe Installation

    Refrigerant pipe installation 5. Refrigerant pipe installation 5.1 Maximum pipe length and height drop Considering the allowable pipe length and height drop to decide the installation position. Make sure the distance and height drop between indoor and outdoor unit not exceeded the date in the following table. Capacity Max.

  • Page 106: Drainage Pipe Installation

    Drainage pipe installation 5.2.11 Set the supporter for the pipe. 5.2.12 Locate the pipe and fix it by supporter For horizontal refrigerant pipe, the distance between supporters should not be exceed 1m.  For vertical refrigerant pipe, the distance between supporters should not be exceed 1.5m. ...
  • Page 107 Drainage pipe installation According to the above table to calculate the total water flowrate for the confluence pipe selection. For horizontal drainage pipe (The following table is for reference) Allowable maximum water flowrate (l/h) Reference value of inner PVC pipe Remark diameter of pipe (mm) Slope 1/50...
  • Page 108 Drainage pipe installation Branch pipe Water flow Water flow Main pipe Keep a certain degree Main pipe Branch pipe The correct installation will not cause converse water flow and the slope of the branch pipes can be  adjusted freely The false installation will cause converse water flow and the slope of the branch pipe can not be ...
  • Page 109 Drainage pipe installation The air outlet shall face down to prevent dirt entering pipe.  Each indoor unit of the system should be installed it.  The installation should be considering the convenience for future cleaning.  Blowhole Indoor unit Indoor unit Plug Plug...

  • Page 110: Vacuum Drying And Leakage Checking

    Vacuum Drying and Leakage Checking shall cause shutdown of unit. When this situation happens, the normal startup only can be recovered by turning down power supply and eliminating accumulated water. Note: Drain plug at the main water-containing plate is used for eliminating accumulated water in water-containing plate when maintaining air conditioner fault.

  • Page 111: Additional Refrigerant Charge

    Additional refrigerant charge Leakage test: After the vacuum degree reaches -755mmHg, stop vacuum drying and keep the pressure for 1 hour. If the indicator of vacuum gauge does not go up, it is qualified. If going up, it indicates that there is moisture or leak source.

  • Page 112: Engineering Of Electrical Wiring

    Engineering of electrical wiring Liquid pipe Insulation meterial Gas pipe The insulation material at the joint pipe shall be 5~10cm longer than the gap of the insulation material.  The insulation material at the joint pipe shall be inserted into the gap of the insulation material. ...

  • Page 113: Test Operation

    Test operation Select different colors for different wire according to relevant regulations.  Do not use metal wire tube at the place with acid or alkali corrosion, adopt plastic wire tube to replace it.  There must be not wire connect joint in the wire tube If joint is a must, set a connection box at the place. ...
  • Page 114 Electrical Control Part 5 Electrical Control System 1. Electrical Control Function ..........113 2. Troubleshooting ............. .118...
  • Page 115 Electrical Control Function no preset temperature is displayed. 1. Electrical Control Function • Indoor fan can be set to high, ( medium ), low, 1.1 Abbreviation or auto. T1: Indoor room temperature Louver operates the same as in cooling • T2: Evaporator coil temperature mode.
  • Page 116 Electrical Control Function 1.3.2.5 Condenser high temperature Above and below protection(excluding 12~36k cooling only outdoor fan on models) Above outdoor fan on 1.3.2.3 Indoor Fan Running Guidelines In cooling mode, the indoor fan runs continuously. You can select the following speeds: high, (medium), low, or auto.
  • Page 117 Electrical Control Function Defrosting action：  Above and below For 12~30K floor-standing units: outdoor fan On Setting defrosting time Above outdoor fan On Compressor 4 way valve Outdoor fan 1.3.3.3 Indoor Fan Running Guidelines Indoor fan When the compressor is on, the indoor fan can select the following speeds: high, (medium), low, or auto..
  • Page 118 Electrical Control Function For Ceiling &floor type: 1.3.5 Dehumidifier Mode 1.3.5.1 Indoor fan speed is fixed at low and cannot Compressor off be changed 1.3.5.2 All protections are activated and operate the Outdoor fan off Compressor and same as they do in cooling mode. Outdoor fan off 1.3.5.3 The louver operates the same as in cooling mode.
  • Page 119 Electrical Control Function 1.3.7.3 The timer setting is available in this mode. ----When the A/C operates in cooling (including auto cooling) or forced cooling mode, the pump 1.3.8 Auto-Restart function begins running immediately and continuously until The indoor unit has an auto-restart module that cooling stops.
  • Page 120 Troubleshooting 2. Troubleshooting 2.1 Display board 2.1.1 Display board of DUCTED PRE-DEF indicator(cooling and heating type) or fan only indicator(cooling only type) Alarm indicator Timer indicator Infrared signal receiver Operation lamp Display digital tube Temporary button OPERATION TIMER DEF./FAN ALARM MANUAL 2.1.2 Display board of super slim cassette 2.1.3 Display board of ceiling &...
  • Page 121 Troubleshooting 2.2. Self-diagnosis Indoor unit’s LED indication During malfunction or protection, the indicators and digital LED displays as follow: For Ceiling &floor type: Malfunction or protection Operation Timer Def/Fan Alarm T1 temperature sensor open or short circuit ☆ T2 temperature sensor open or short circuit ☆...
  • Page 122 Troubleshooting For Compact cassette Type: Running Timer Defrosting Alarm Malfunction lamp lamp lamp lamp T1 temperature sensor open or short circuit ☆ T2 temperature sensor open or short circuit ☆ T3 temperature sensor open or short circuit ☆ Indoor EEPROM malfunction ☆...
  • Page 123 Troubleshooting LEDs’ for the indication of outdoor trouble(for 36-60K models) Type Contents LED1 LED2 LED3 Trouble Phase sequence Flash Trouble Lack of phase(A,B) Flash Trouble Lack of phase(C) Trouble Low pressure protection Flash Flash Trouble Overload of current Flash Trouble T3 temperature sensor open or short circuit Flash Flash...
  • Page 124 Troubleshooting 2.3. Solving steps for typical malfunction (1) For indoor unit a. T1 or T2 temperature sensor open or short circuit b. T3 temperature sensor open or short circuit...
  • Page 125 Troubleshooting c. Indoor EEPROM malfunction EEPROM: An electrically erasable programmable read-only memory whose contents can be erased and reprogrammed using a pulsed voltage. d. Water level alarm e. Communication malfunction between indoor main PCB and display PCB...
  • Page 126 Troubleshooting f. Refrigerant Leakage Detection...
  • Page 127 Troubleshooting For the super-slim cassette with up-down panel a. Communication error between auto-lifting panel and slim cassette b. Auto-lifting panel is faulty...
  • Page 128 Troubleshooting (2) For the outdoor unit a. Phase sequence error: Phase sequence error Change the order of two of the wires to power supply. Switch on the unit again. If the problem cannot be solved, the outdoor PCB is defective b.
  • Page 129 Troubleshooting c. Overload of current Check if the voltage of the power Regulate the power supply supply is too low Check if the operation condition is Correct the operation condition normal, especially the outdoor unit? Replace the outdoor fan Check if the outdoor fan is defective Check if the compressor is running Replace the compressor normally...
  • Page 130 Troubleshooting d. Protection of pressure or temp. Protection of pressure or temp. Is it k1 or K2 open ? Is temp. protective switch K1 open Is pressure protective switch K2 open Possible reason Possible reason 1. The wires is loose to K1 1.
  • Page 131 Troubleshooting f . High temperature protection of condenser High temperature protection of condenser Check the resistance of the temp. sensor according to Appendix 1, is it normal? Replace the sensor Possible reason 1. Air or other gas in the refrigerant. 2.
  • Page 132 Troubleshooting Appendix 1 Temperature Sensor Resistance Value Table ( ℃ --K) K Ohm K Ohm K Ohm K Ohm ℃ ℃ ℃ ℃ 12.6431 2.35774 0.62973 115.266 108.146 12.0561 2.27249 0.61148 101.517 11.5000 2.19073 0.59386 96.3423 10.9731 2.11241 0.57683 89.5865 10.4736 2.03732 0.56038...
  • Page 133 Troubleshooting Appendix 2 Unit: ℃ ---K Discharge temp. sensor table 542.7 68.66 13.59 3.702 511.9 65.62 13.11 3.595 62.73 12.65 3.492 455.9 59.98 12.21 3.392 430.5 57.37 11.79 3.296 406.7 54.89 11.38 3.203 384.3 52.53 10.99 3.113 363.3 50.28 10.61 3.025 343.6 48.14...

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