York YHKMXH009BARR-FX Service Manual
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York YHKMXH009BARR-FX Service Manual

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___________________________________________________________________________________
Commercial Air Conditioning
MULTI Split series

SERVICE MANUAL

Models
Indoor:
YHKMXH009BARR-FX
YHKMXH012BARR-FX
YHKMXH018BARR-FX
YHKMXH024BARR-FX
YHFMXH012BARR-FX
YHFMXH018BARR-FX
YHFMXH024BARR-FX
YHDMXH009BARR-FX
YHDMXH012BARR-FX
YHDMXH018BARR-FX
YHDMXH024BARR-FX
Outdoor:
YJU3YH019BARRA-X
YJU4YH025BARRA-X
YJU4YH030BARRA-X
YJU5YH034BARRA-X

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Summary of Contents for York YHKMXH009BARR-FX

  • Page 1: Service Manual

    ___________________________________________________________________________________ Commercial Air Conditioning SERVICE MANUAL MULTI Split series Models Indoor: YHKMXH009BARR-FX YHKMXH012BARR-FX YHKMXH018BARR-FX YHKMXH024BARR-FX YHFMXH012BARR-FX YHFMXH018BARR-FX YHFMXH024BARR-FX YHDMXH009BARR-FX YHDMXH012BARR-FX YHDMXH018BARR-FX YHDMXH024BARR-FX Outdoor: YJU3YH019BARRA-X YJU4YH025BARRA-X YJU4YH030BARRA-X YJU5YH034BARRA-X...

  • Page 2: Table Of Contents

    ___________________________________________________________________________________ CONTENTS Contents………………………………………………………..2 1. Description of products & features………………………….3 2. Specification…………………………………………………...6 3. Dimensions…………………………………………………..21 4. Pipe and wiring installation…..……………………………..26 5. PCB photo, wiring diagram and function description……..72 6. Diagnostic code and troubleshooting.……………………...95 7. Outdoor performance curves………..……………………..101 8. Indoor air velocity and temperature distribution curves..105 9.

  • Page 3: Description Of Products & Features

    ___________________________________________________________________________________ 1.Description of products & features 1.1. Brief Introduction for T1,T2,T3 working condition Climate type Type Conditioner Cooling Only 18 ℃~43℃ 10℃~35℃ 21℃~52℃ Heat pump -7℃~43℃ -7℃~35℃ -7℃~52℃ Electricity Heating ~43℃ ~35℃ ~52℃ 1.2 Operating Range of Air Conditioners Working temperature range Rated Maximum Minimum...
  • Page 4 ___________________________________________________________________________________ 1.3 Product features DC inverter technology, high energy efficiency, higher EER A+, energy saving for the user The outdoor unit adopts DC inverter compressor and motor, so save power energy is just to save money for the user. And the outdoor can match with multiple indoor units, up to 5 sets. Even when you have already installed the air conditioner, if you want to add or reduce one unit, go ahead freely as long as your operation complies with our design.
  • Page 5 ___________________________________________________________________________________ on the operation panel. Then according to the failure code chart, you can eliminate the failure soon. Central control function, if connected with a central controller That is convenient for building management. Weekly timing function, if connected with a weekly timer Universal power supply for 50Hz and 60Hz The multi upgrade series adopts universal power supply for 50Hz and 60Hz, which is convenient for design.

  • Page 6: Specification

    ___________________________________________________________________________________ 2. Specifications Item Model YJU3YH019BAR-A-X Function Cooling Heating Rating capacity 5400 6500 Power input (indoor + outdoor) 1410 1520 Current input (indoor + outdoor) 6.13 EER / COP 3.84 4.28 Minimum capacity 1500 1800 Minimum power input Maximum capacity 7000 8100 Maximum power input (indoor + outdoor)
  • Page 7 ___________________________________________________________________________________ Item Model YJU4YH025BAR-A-X Function Cooling Heating Rating capacity 7600 8600 Power input (indoor + outdoor) 2100 2060 Current input (indoor + outdoor) EER / COP 3.62 4.18 Minimum capacity 1500 1800 Minimum power input Maximum capacity 9000 9500 Maximum power input (indoor + outdoor) 3500 3500 Power source...
  • Page 8 ___________________________________________________________________________________ Item Model YJU4YH030BAR-A-X Function Cooling Heating Rating capacity 8100 9800 Power input (indoor + outdoor) 2220 2430 Current input (indoor + outdoor) 10.6 EER / COP 3.65 4.03 Minimum capacity 1500 1800 Minimum power input Maximum capacity 9800 10500 Maximum power input (indoor + outdoor) 3800 3800...
  • Page 9 ___________________________________________________________________________________ Item Model YJU5YH034BAR-A-X Function Cooling Heating Rating capacity 10000 10700 Power input (indoor + outdoor) 2940 2850 Current input (indoor + outdoor) 12.8 12.4 EER / COP 3.75 Minimum capacity 1500 1800 Minimum power input Maximum capacity 11000 11500 Maximum power input (indoor + outdoor) 4000 4000...
  • Page 10 ___________________________________________________________________________________ Item Model YHKMXH009BARR-FX Function cooling heating Capacity Sensible heat ratio 0.71 Dehumidifying capacity 10‐³×m³/h Power Supply 1PH,220-230V 50-60HZ Type × Number CENTRIFUGALX1 Speed(H-M-L) 690/620/560 r/min Fan motor output power 0.03 Air-flow(H-M-L) m³/h 620/520/450 Type / Diameter inner grooved pipe/φ7...
  • Page 11 ___________________________________________________________________________________ Item Model YHDMXH009BARR-FX Function cooling heating Capacity Sensible heat ratio 0.71 Dehumidifying capacity 10‐³×m³/h Power Supply 1PH,220-230V 50-60HZ Type × Number CENTRIFUGALX1 Speed(H-M-L) 1000/900/800±50 r/min Fan motor output power 0.05 Air-flow(H-M-L) m³/h 550/450/400 Static pressure Type / Diameter inner grooved pipe/φ7 Heat exchanger Total Area 0.11...
  • Page 12 ___________________________________________________________________________________ Item Model YHKMXH012BARR-FX Function cooling heating Capacity 3.5(0.9--4.5) 3.7(1.0--4.8) Sensible heat ratio 0.71 Dehumidifying capacity 10‐³×m³/h Power Supply 1PH,220-230V 50-60HZ Type × Number CENTRIFUGALX1 Speed(H-M-L) r/min 690/620/560 Fan motor output power 0.03 Air-flow(H-M-L) 620/520/450 m³/h Type / Diameter inner grooved pipe/φ7 Heat exchanger Total Area m²...
  • Page 13 ___________________________________________________________________________________ Item Model YHFMXH012BARR-FX Function cooling heating Capacity 3.5(0.9--4.5) 3.9(1.0--4.8) Sensible heat ratio 0.71 Dehumidifying capacity 10‐³×m³/h Power Supply 1PH,220-230V 50-60HZ Type × Number CENTRIFUGALX2 Speed(H-M-L) r/min 1100/1025/825 Fan motor output power 0.09 Air-flow(H-M-L) m³/h 650/550/450 Type / Diameter inner grooved pipe/φ7 Heat exchanger Total Area 0.20...
  • Page 14 ___________________________________________________________________________________ Item Model YHDMXH012BARR-FX Function cooling heating Capacity 3.5(0.9--4.5) 4.0(1.0--4.8) Sensible heat ratio 0.71 Dehumidifying capacity 10‐³×m³/h Power Supply 1PH,220-230V 50-60HZ Type × Number CENTRIFUGALX1 1000/900/800±50 Speed(H-M-L) r/min Fan motor output powe 0.05 Air-flow(H-M-L) 550/450/400 m³/h Static pressure Type / Diameter inner grooved pipe/φ7 Heat exchanger Total Area...
  • Page 15 ___________________________________________________________________________________ Item Model YHKMXH018BARR-FX Function cooling heating Capacity 5.0(1.8--5.8) 5.2(2.0--6.5) Sensible heat ratio 0.71 Dehumidifying capacity 10‐³×m³/h Power Supply 1PH,220-230V 50-60HZ Type × Number CENTRIFUGALX1 Speed(H-M-L) 795/690/550±50 r/min Fan motor output power 0.065 Air-flow(H-M-L) 680/620/500 m³/h Type / Diameter inner grooved pipe/φ7 Heat exchanger Total Area m²...
  • Page 16 ___________________________________________________________________________________ Item Model YHFMXH018BARR-FX Function cooling heating Capacity 5.0(1.8--5.8) 5.5(2.0--6.5) Sensible heat ratio 0.71 Dehumidifying capacity 10‐³×m³/h Power Supply 1PH,220-230V 50-60HZ Type × Number CENTRIFUGALX2 Speed(H-M-L) r/min 1220/1190/1050 Fan motor output power 0.075 Air-flow(H-M-L) 800/720/650 m³/h Type / Diameter inner grooved pipe/φ7 Heat exchanger Total Area 0.45...
  • Page 17 ___________________________________________________________________________________ Item Model YHDMXH018BARR-FX Function cooling heating Capacity 5.0(1.8--6.0) 5.5(2.0--6.2) Sensible heat ratio 0.73 Dehumidifying capacity 10‐³×m³/h Power Supply 1PH,220-230V 50-60HZ Type × Number CENTRIFUGALX2 Speed(H-M-L) 730±30/540±30/400±30 r/min Fan motor output pow 0.05 Air-flow(H-M-L) 850/780/600 m³/h Static pressure Type / Diameter inner grooved pipe/φ7 Heat exchanger Total Area...
  • Page 18 ___________________________________________________________________________________ Item Model YHKMXH024BARR-FX Function cooling heating Capacity 6.5(2.0--7.3) 7.1(2.5--8.0) Sensible heat ratio 0.72 Dehumidifying capacity 10‐³×m³/h Power Supply 1PH,220-230V 50-60HZ Type × Number CENTRIFUGALX1 Speed(H-M-L) 670±40/550±50/460±50 r/min Fan motor output power 0.16 Air-flow(H-M-L) 1300/1100/870 m³/h Type / Diameter inner grooved pipe/φ7 Heat exchanger Total Area m²...
  • Page 19 ___________________________________________________________________________________ Item Model YHFMXH024BARR-FX Function cooling heating Capacity 6.3(2.0--7.3) 7.1(2.5--8.0) Sensible heat ratio 0.72 Dehumidifying capacity 10‐³×m³/h Power Supply 1PH,220-230V 50-60HZ Type × Number CENTRIFUGALX2 Speed(H-M-L) 1220±40/1190±50/1050±50/980±50 r/min Fan motor output power 0.10 Air-flow(H-M-L) m³/h 800/720/650 Type / Diameter inner grooved pipe/φ7 Heat exchanger Total Area 0.49...
  • Page 20 ___________________________________________________________________________________ Item Model YHDMXH024BARR-FX Function cooling heating Capacity 6.8(2.0--7.6) 7.1(3.0--8.3) Sensible heat ratio 0.72 Dehumidifying capacity 10‐³×m³/h Power Supply 1PH,220-230V 50-60HZ Type × Number CENTRIFUGALX2 Speed(H-M-L) 1250±40/1130±40/1000±50/850±50 r/min Fan motor output power 0.05 Air-flow(H-M-L) 1200/1050/850(white terminal 0 Pa) m³/h Static pressure Type / Diameter inner grooved pipe/φ7 Heat exchanger...

  • Page 21: Dimensions

    ___________________________________________________________________________________ 3. Dimension YJU3YH019BARRA-X Air inlet Air inlet Air outlet Handle Handle Liquid pipe:Ø6.35(flared)1/4 A unit connection Gas pipe :Ø9.52(flared)3/8 Liquid pipe:Ø6.35(flared)1/4 B unit connection Gas pipe :Ø9.52(flared)3/8 Liquid pipe:Ø6.35(flared)1/4 C unit connection Gas pipe :Ø9.52(flared)3/8 YJU4YH025/30BARRA-X Air inlet Gas pipe Ø9.52(flared) 3/8(A,B,C unit) Ø12.7(flared) 1/2(D unit) Air inlet...
  • Page 22 ___________________________________________________________________________________ YJU5YH034BARRA-X Air inlet Air inlet Gas pipe Air outlet Ø9.52(flared) 3/8(A,B,C,D unit) Ø12.7(flared) 1/2(E unit) Handle Indoor and outdoor Handle connect wiring hole (30*48) Handle A unit connection B unit connection C unit connection D unit connection E unit connection Liquid pipe Ø6.35(flared) 1/4 ___________________________________________________________________________________...
  • Page 23 ___________________________________________________________________________________ EJZZN[[N \UR[C V]NYSJWNM MRZ[JULN KN[^NNU [QN LNRSRUP PJZ WRWN JUM [QN WJUNSC ;>TT MYJRUJPN WRWN SRX\RM WRWN >@ Z\ZWNUZRVU QVSMNY @> ?> WJUNS LNRSRUP ><>TT 7KN[^NNU Z\ZWNUZRVU WVSNZ8 OYNZQ JRY QVSN >@9TT 7RUMVVY \UR[ MRTNUZRVU8 ?>9TT 7LNRSRUP VWNURUP MRTNUZRVU8 @99TT 7WJUNS MRTNUZRVU8 HGFI D HGFI D...
  • Page 24 ___________________________________________________________________________________ :FJKJMH DNMDFBKFE QSOF RMJQ8 =MPQBKKBQJNM EJLFMPJNM8+LL, YHDMXH009BARR-FX YHDMXH012BARR-FX YHDMXH018BARR-FX YHDMXH024BARR-FX YHDMXH009BARR-FX YHDMXH012BARR-FX YHDMXH018BARR-FX YHDMXH024BARR-FX ___________________________________________________________________________________ -24-...
  • Page 25 ___________________________________________________________________________________ Cassette type unit: 24 1000 over ___________________________________________________________________________________ -25-...

  • Page 26: Pipe And Wiring Installation

    ___________________________________________________________________________________ 4. Pipe and wiring installation 4.1 Multi combination and the data YJU3YH019BAR-A-X combination and the data COOLING total cooling total power input total current Combinatio capacity(Kw) capacity(kW) (kW) (A)@230V (W/W) (Nom. cooling) energy Comb. min. rate min. rated max. min.
  • Page 27 ___________________________________________________________________________________ COOLING Rated capacity Output/kW total cooling total power input total current Combinations (Nom. cooling) capacity(kW) (kW) (A)@230V (W/W) energy Comb. rated label Unit Unit Unit Unit Unit Unit Unit Unit min. rated min. rated max. min. rated max. capaci data data data...
  • Page 28 ___________________________________________________________________________________ YJU4YH025BARR-A-X combination and the data HEATING Rated capacity Output/kW total heating total power input total current Combinations (Nom. heating) capacity(KW) (A)@230V (W/W) energy Comb. rated label Unit Unit Unit Unit Unit Unit Unit Unit min. rated min. rated max. min.
  • Page 29 ___________________________________________________________________________________ YJU4YH030BARR-A-X combination and the data COOLING energy Rated capacity Output/kW total cooling total power input total current Combinations label capacity(kW) (kW) (A)@230V (Nom. cooling) (W/W) Comb. min. rated max. min. rated max. min. rated max. Unit Unit Unit Unit Unit Unit Unit...
  • Page 30 ___________________________________________________________________________________ HEATING total heating total power input total current energy Rated capacity Output/kW Combinations label capacity(KW) (A)@230V (Nom. heating) (W/W) Comb. Unit Unit Unit Unit Unit Unit Unit Unit min. rated max. min. rated max. min. rated max. rated data data data data...
  • Page 31 ___________________________________________________________________________________ YJU5YH034BARR-A-X combination and the data COOLING Rated capacity Output/kW total cooling total power input total current Combinations (Nom. cooling) capacity(kW) (kW) (A)@230V (W/W) energ Comb. rated y label Unit Unit Unit Unit Unit Unit min. rated max. min. rated max.
  • Page 32 ___________________________________________________________________________________ — 2.50 2.50 2.50 — 1.8 10.0 11.0 0.55 3.01 13.35 19.0 3.32 12 — 2.27 2.27 2.27 3.18 — 1.8 10.0 11.0 0.55 2.96 13.13 19.0 3.38 18 — 2.00 2.00 2.00 — 1.8 10.0 11.0 0.55 2.94 13.04 19.0 3.40...
  • Page 33 ___________________________________________________________________________________ 18 18 18 3.57 3.57 3.57 1.8 10.7 11.5 0.55 3.15 13.98 19.0 3.40 — 2.30 2.30 2.30 2.30 — 0.55 2.87 12.73 19.0 3.21 — 2.30 2.30 2.30 2.90 — 0.55 2.87 12.73 19.0 3.41 12 — 2.30 2.30 2.30 3.80...

  • Page 34: Wiring Connection

    ___________________________________________________________________________________ 4.2. Wiring connection YJU3YH019BARRA-X If this outdoor unit connects with AS*S1ERA, the connecting cable is 1.5mm2 Connect the connecting wires between indoor and outdoor units and ensure the sequence numbers on terminals match with each other. ___________________________________________________________________________________ -34-...
  • Page 35 ___________________________________________________________________________________ YJU4YH025/30BARRA-X If this outdoor unit connects with AS*S1ERA, the connecting cable is 1.5mm2 Connect the connecting wires between indoor and outdoor units and ensure the sequence numbers on terminals match with each other. ___________________________________________________________________________________ -35-...
  • Page 36 ___________________________________________________________________________________ YJU5YH034BARRA-X If this outdoor unit connects with AS*S1ERA, the connecting cable is 1.5mm2 Connect the connecting wires between indoor and outdoor units and ensure the sequence numbers on terminals match with each other. ___________________________________________________________________________________ -36-...
  • Page 37 ___________________________________________________________________________________ 4.3 Limitation values on pipe installation YJU3YH019BARRA-X Item Unit Description Standard Maximum A,B,C liquid pipe mm Size of the liquid side connection pipe φ6.35 A,B,C Gas pipe mm Size of the gas side connection pipe φ9.52 L1 (one way) Max.piping length between IU and OU of the way ≤10 ≤25...
  • Page 38 ___________________________________________________________________________________ YJU4YH025/30BARRA-X Item Unit Description Standard Maximum A,B,C, Dliquid pipe mm Size of the liquid side connection pipe φ6.35 A,B,C Gas pipe mm Size of the gas side connection pipe φ9.52 D Gas pi[pe mm Size of the gas side connection pipe φ12.7 L1 (one way) Max.piping length between IU and OU of the way...
  • Page 39 ___________________________________________________________________________________ YJU5YH034BARRA-X U n i Item Description Standard Maximum A,B,C,D,E liquid pipe mm Size of the liquid side connection pipe φ6.35 A,B,C,D Gas pipe mm Size of the gas side connection pipe φ9.52 E Gas pi[pe mm Size of the gas side connection pipe φ12.7 L1 (one way) Max.piping length between IU and OU of the way...
  • Page 40 ___________________________________________________________________________________ Connection cautions model YJU3YH019BARRA-X YJU4YH025/30BARRA-X YJU5YH034BARRA-X connection priority between indoor and stop valve higher from down to up when there is 1 indoor,the prior stop valve is when there are 2 indoors,the prior D、C C、B E、D stop valves are when there are 3 indoors,the prior D、C、B...
  • Page 41 ___________________________________________________________________________________ 4.4 Outdoor installation Installation figure please refers to YJU4YH025BAR-A-X Arrangement of piping directions Rear left Rear right Left Right Below Attention must be Wrap the insulation pipe with the finishing tape paid to the rising from bottom to top. up of drain hose Cut thermal insulation pipe to an appropriate length and wrap it with tape, making sure that no...

  • Page 42: Limitations On The Installation

    ___________________________________________________________________________________ Check the strength and level of the installation ground so that the unit will not cause any operating vibration or noise after installed. In accordance with the foundation drawing in fix the unit securely by means of the foundation bolts.(Prepare four sets of M8 or M10 foundation bolts, nuts and washers each which are available on the market.) It is best to screw in the foundation bolts until their length are 20mm from the foundation surface.
  • Page 43 ___________________________________________________________________________________ ___________________________________________________________________________________ -42-...
  • Page 44 ___________________________________________________________________________________ 3. Refrigerant piping work 1). Align the centres of both flares and tighten the flare nuts 3 or 4 turns by hand. Then tighten them fully with the tor wrenches. Use torque wrenches when tightening the flare nuts to prevent damage to the flare nuts and escaping gas. Flare nut fightening torque Flare nut for 6.35...
  • Page 45 ___________________________________________________________________________________ 5. Refilling the refrigerant Check the type of refrigerant to be used on the machine namiplate. Precautions when adding R410A Fill from the liquid pipe in liquid form. It is a mixed refrigerant, so adding it in gas form may cause the refrigerant composition to change, preventing normal operation. 1) Before filling, check whether the cylinder has a siphon attached or not.(It should have something like "liquid filling siphon attached"...
  • Page 46 ___________________________________________________________________________________ 3) Use separate thermal insulation pipes for gas and liquid refrigerant pipe. Inter unit wiring Wall Be sure to Gas pipe place a cap. Liquid pipe Rain If no flare cap is available, cover the flare mouth with tape Liquid pipe Gas pipe to keep dirt or water...
  • Page 47 ___________________________________________________________________________________ In order to protect the environment, be sure to pump down when relocating or disposing of the unit. 1) Remove the valve caps from liquid stop valve and gas stop valve. 2) Carry out forced cooling operation. liquid 3) After five to ten minutes, close the liquid stop valve with a hexagonal wrench. stop valve Hexagonal 4) After two to three minutes, close the gas stop vaile and stop forced cooling...
  • Page 48 ___________________________________________________________________________________ Wire cover A Wire cover C Terminal block Wire cover A Wire cover C Wire cover D Wire cover B Wire cover E Wire cover B Terminal block Valve cover Valve cover –¨ 25.40 4. Wiring method of indoor unit Loosen wire cover and connect the power line and communication wire of indoor unit to the terminal correspondingly.
  • Page 49 ___________________________________________________________________________________ Before starting the test running, please confirm the following works have been done successfully. 1) Correct piping work; 2) Correct wiring work; 3) Correct match of indoor and outdoor unit; 4) Proper recharge of refrigerant if needed. Make sure that all the stop valves are fully open. Check the voltage supplied to the outdoor and indoor units, please cinfirm that is 230V.
  • Page 50 ___________________________________________________________________________________ 4.5. Cassette type Vilmaggamfji ^jjgl Vilmaggamfji [kjbdcnkdl Vilmaggamfji [kjbdcnkdl ___________________________________________________________________________________ -49-...
  • Page 51 ___________________________________________________________________________________ ___________________________________________________________________________________ -50-...
  • Page 52 ___________________________________________________________________________________ ___________________________________________________________________________________ -51-...
  • Page 53 ___________________________________________________________________________________ ___________________________________________________________________________________ -52-...
  • Page 54 ___________________________________________________________________________________ ___________________________________________________________________________________ -53-...

  • Page 55: Convertible Type

    ___________________________________________________________________________________ 4.6. Convertible type Floor console SELECTING THE MOUNTING POSITION Fig.A may be difference WARNING 1.5m Install at a place that can withstand the weight of the indoor and outdoor units and install positively so that the units will not topple or fall Left Right CAUTION...
  • Page 56 ___________________________________________________________________________________ PREPARING INDOOR UNIT INSTALLATION REMOVE THE INTAKE GRILL Open the intake grill and remove the three or four or six screws.(Fig. 1) Fig. 1 Remark: The main unit can be wired before the indoor unit is installed. Select the most appropriate installation order.
  • Page 57 ___________________________________________________________________________________ 2. INSTALLING DRAIN HOSE Wrap the insulation (drain hose) around the drain Select whether the drain hose will be connected hose connection. (Fig.7) to the left or right side.(Fig.3) Insert the drain hose into the drain pan, then secure the drain hose with a nylon fastener.
  • Page 58 ___________________________________________________________________________________ 1. DRILLING FOR PIPING 3. INSTALLING BRACKETS Select piping and drain directions. Install the brackets with nuts, washers and spring (Fig.11) washers.(Fig. 15) Rear (Install the drain Fig. 15 hose in the direction.) Right Spring washer Bracket Special nut Fig.

  • Page 59: Outdoor Unit Installation

    ___________________________________________________________________________________ 5. INSTALL THE DRAIN HOSE OUTDOOR UNIT INSTALLATION Select whether the drain hose will be connected to CONNECTING THE PIPING the left or right side.(Fig.3) Insert the drain hose into the drain pan, then secure 1. FLARE PROCESSING the drain hose with a nylon fastener.(Fig.6) (1) Cut the connection pipe with pipe cutters so Wrap the insulation (drain hose)around the drain that the pipe is not deformed.
  • Page 60 ___________________________________________________________________________________ 3. PIPING CONNECTION Fit the nut on and fasten 90 0.5 The maximum length and drop height of connecting pipe Please refer to the installation manual of outdoor unit Joint To ensure the efficiency , Pipes shall be as short as possible. Spanner Cautions for piping connection Do not twist or deform the connecting pipe.

  • Page 61: How To Connect Wiring To The Terminals

    ___________________________________________________________________________________ HOW TO CONNECT WIRING TO THE TERMINALS A. For solid core wiring (or F-cable)(Fig.24A) (1) Cut the wire with a wire cutter or wire-cutting pliers, then strip the insulation to about 25mm of the exposed solid wire. (2) Using a screwdriver, remove the terminal screw(s) on the terminal board. (3) Using pliers, bend the solid wire to form a loop suitable for the terminal screw.

  • Page 62: Electrical Wiring

    ___________________________________________________________________________________ ELECTRICAL WIRING (2) Pull out the electric component box. CAUTION Fig.28 (1) Match the terminal block numbers and connection cord colors with those of the outdoor unit. Erroneous wiring may cause burning of the electric parts. (2) Connect the connection cords firmly to the terminal block.

  • Page 63: Test Running

    ___________________________________________________________________________________ ELECTRICAL WIRING (2) OUTDOOR UNIT (1) Is there any abnormal noise and vibration during WARNING operation? (1) Always use a special branch circuit and install a special (2) Will noise, wind, or drain water from the unit disturb receptacle to supply power to the room air conditioner. the neighbors? (2) Use a circuit breaker and receptacle matched to (3) Is there any gas leakage?
  • Page 64 ___________________________________________________________________________________ 2. Mount the cover plate.(Left) (1) Join the cover plate (left) and mount with screws. Fig. 33 3. Mount the intake grill. (1) Cut the right side of the intake grill. This is only when the pipe exits from the right side Fig.

  • Page 65: Duct Type

    ___________________________________________________________________________________ 4.7 Duct type 2. Preparation for installation Installation tools Screw Driver (flat head, wabbler, triangle) 8 Pipe Expander Steel Saw Knives 60mm Drill 10 Clippers Inner Hexagon Spanner 11 Leakage Checker or Soap Liquid Shifting Spanner 12 Measuring Tape Spanner 13 Scraper or File Pipe Cutter...

  • Page 66: Installation Procedure

    ___________________________________________________________________________________ 5. Installation procedure 1. Drill a hole in the wall and insert the connecting pipe and wire through a PVC wall-through tube purchased locally. The wall hole shall be with a outward down slope of at least 1/100. (See Figure 1) 2.
  • Page 67 ___________________________________________________________________________________ The distance between air duct outlet and air conditioner outlet is according to the length of actually installed air duct and in service behavior of the static pressure terminal: Installation sketch map for long and short air duct is showed below, when connect to short air duct, using low static terminal (terminal color is white), the distance between air duct outlet and air conditioner outlet is no more than 0.5m;...
  • Page 68 ___________________________________________________________________________________ 2. Installation of air return duct Use rivets to connect the air return duct to the air return inlet of the indoor unit. The other end connects to the air return shutter. as shown in Fig.2. air return air return shutter duct indoor unit...
  • Page 69 ___________________________________________________________________________________ Original concrete slab Use hole hinge, hole plunger or hole bolt. Steel reinforcement structure Use steel angle or new support steel angle directly. Hanging bolt Support steel angle Suspension screw Hanging of the indoor unit Fasten the nut on the suspension screw and then hang the suspension screw in the Tslot of the suspension part of the unit.
  • Page 70 ___________________________________________________________________________________ Pipe and insulation material Pipe Rigid PVC pipe VP31.5mm (internal diameter) Insulation Foamed PE with thickness above 7mm Hose Drain pipe size: ? 19.05mm (3/4") PVC pipe. The hose is used for adjusting the off-center and angle of the rigid PVC pipe. Directly stretch the hose to install without making any deformation.

  • Page 71: Trial Operation

    ___________________________________________________________________________________ Pipe expansion dimensions as follows: Incorrect Correct Pipe diameter Size A (mm) 6.35 mm (1/4 " ) 0.8 ~ 1.5 9.52 mm (3/8 " ) 1.0 ~ 1.8 Slope Damage Bur Partial Overlong 12.7 mm (1/2 " ) 1.2 ~ 2.0 Pipe expander The connection of indoor unit pipes must use double spanners.
  • Page 72 ___________________________________________________________________________________ Brazed seam B=8.0-9.0(mm) d=4.3-5.3(mm) Ring Terminal T=1.0-2.0(mm) (For your referrence) Wiring method of ring terminal 2 Wiring method of straight terminal For connecting line which end is not a ring, its wiring method as follows: loosen wiring screw ans insert the end of connecting line totally into the terminal block,then tighten the screw and pull the connecting line slightly to confirm that it is clamped firmly.

  • Page 73: Pcb Photo,Wiring Diagram And Function Description

    ___________________________________________________________________________________ 5. PCB photo,Wiring diagram and function description 5.1 Outdoor unit 5.1. 1. Outdoor PCB photo YJU3YH019BARRA-X filter board YJU4YH025/30BARRA-X filter board YJU5YH034BARRA-X filter board ___________________________________________________________________________________ -72-...
  • Page 74 ___________________________________________________________________________________ outdoor display board(small service PCB) outdoor main board ___________________________________________________________________________________ -73-...
  • Page 75 ___________________________________________________________________________________ 5.1.2. Wiring diagram YJU3YH019BARRA-X ___________________________________________________________________________________ -74-...
  • Page 76 ___________________________________________________________________________________ YJU4YH025/30BARRA-X YJU5YH034BARRA-X ___________________________________________________________________________________ -75-...
  • Page 77 ___________________________________________________________________________________ 5.1.3 . Switch setting and functions: Outdoor main PCB 0151800075 SW5 definition definition cooling only heat pump (default) set ON if frost easily set OFF if hard to frost(default) Max. running current is 11A normal control (default) OFF ON --- 3U19* ON ON --- 4U25*...
  • Page 78 ___________________________________________________________________________________ 3. Main control functions 3.1 Refrigerant diagram Pipe system for YJU3YH019BARRA-X ___________________________________________________________________________________ -77-...
  • Page 79 ___________________________________________________________________________________ Pipe system for YJU4YH025/30BARRA-X ___________________________________________________________________________________ -78-...
  • Page 80 ___________________________________________________________________________________ Pipe system for YJU5YH034BARRA-X 3.2 Outdoor frequency control 3.2.1 Compressor running frequency range: 20~95RPS 3.2.2 Defination of high-efficiency operation and its frequency control In order to meet the cooling request at high ambient temperature and the heating request at low ambient temperature, we set the high-efficiency operation.
  • Page 81 ___________________________________________________________________________________ 3.3.2 Initialization of EEV EEV driving speed: open direction: 32MS; close direction: 32MS 3.3.3 Open angle limitation of EEV Unit stop Adjustable upper Thermostat ON Thermostat Adjustable lower limitation limitation 5（E） 450（E） Cool/dry standard open 5（E） 80（E） angle+tolerance heat 60（E）...
  • Page 82 ___________________________________________________________________________________ not go down greatly. Ambient temp. TA≤27degree, when compressor stops, the electric heater will be electrified. When TA≥32degree, or compressor running, the electric heater will be off. Heater ON Ambient temp. TA(℃) 3.6 Control of defrosting in heating In heating mode, defrosting temp. sensor will check the frosting condition of outdoor heat exchanger and make defrosting control.
  • Page 83 ___________________________________________________________________________________ 3.6.4 Defrosting operation flow chart beginning fixed frequency indicated FQY 60s defrosting FQY 80 Hz（E） soft startup compressor outdoor motor send defrosting signal to indoor Auto 4-way valve 450-pulse 450-pulse 350-pulse(E) all EEVs auto open angle auto open angle all indoor motors ON anti-cold air function 3.7Frequency control when Td is too high...
  • Page 84 ___________________________________________________________________________________ 3.8 Frequency control when there is CT over current protection Stop immediately, if abnormal stop 3 times in 1 hour, the unit will stop and alarm. 1.0 I Reduce FQY rapidly 2HZ/S 0.95I Reduce FQY rapidly 1HZ/S 0.93I Reduce FQY slowly 1HZ/10S 0.90I Remain FQY 0.88I...
  • Page 85 ___________________________________________________________________________________ ·When unit stops, the reason that system still checks the low pressure : in a long time stop, make protection for the compressor on the condition of great refrigerant leakage. ·The reason that low pressure switch action time is 30 seconds: when compressor stops, low pressure does not change, so it will be shorter than the set time in operation.
  • Page 86 ___________________________________________________________________________________ 3.11 Oil return operation control 3.11.1 Entering condition When the compressor running frequency is lower than 58Hz (E) continuously for 8 hrs, the system will enter oil return operation. In the course of mode changeover, manual unit stop or protective unit stop, the time will be accumulative.
  • Page 87 ___________________________________________________________________________________ After oil return in cooling mode, the quit condition of refrigerant eliminated: 1 minute later after oil return is over Td Tc ＆ ‐ ＞30℃ Ts Tc2AVE ‐ ＞30℃ Tc2AVE＜ 35 ‐ ℃ Max. 10 minutes Oil return procedure in heating mode: Send oil return signal oil return begins oil return over...
  • Page 88 ___________________________________________________________________________________ 5.2 Indoor unit 5.2.1 Indoor unit PCB photo ___________________________________________________________________________________ -87-...
  • Page 89 ___________________________________________________________________________________ 5.2.2. Indoor Wiring Diagram ___________________________________________________________________________________ -88-...

  • Page 90: Electrical Control Functions

    ___________________________________________________________________________________ 5.2.5. . Electrical Control Functions 1. Dip switch functions: Indoor unit PCB SW1-1~~SW1-8 SW1-1 SW1-2 SW1-3 SW1-4 SW1-5 SW1-6 SW1-7 SW1-8 Description 09 indoor 12 indoor 18 indoor 24 indoor Room card invalid Room card valid Heat pump Cooling only Without temperature compensation with temperature compensation Cassette...
  • Page 91 ___________________________________________________________________________________ 2. Sign definition: Indoor outdoor Toci Outlet Inlet Thick pipe Compressor Compressor Ambient Ambient Defrost pipe pipe coil of heat condenser suction discharging temp. temp. temp. temp. temp. temp. exchanger temp. temp. temp. Tcomp1,2 Tset Temp. compensation temp. 3. Dry operation Tai＜16℃, indoor unit stops running and sends stop-unit signal to outdoor.
  • Page 92 ___________________________________________________________________________________ 6.4 In AUTO mode, when the indoor unit occurs abnormal operation, the indoor unit will keep OFF state, and the buzzer will not sound until the outdoor mode and the requested mode of indoor unit are the same. 6.5 COOL (included AUTO COOL), DRY, FAN are not abnormal mode. 6.6 HEAT and FAN are not abnormal mode.
  • Page 93 ___________________________________________________________________________________ 12. Water pump control 12.1 Water pump will be electrified when indoor unit enters non-heating mode until indoor unit stops. 5 minutes later after indoor unit stops, water pump will stop. 12.2 When indoor unit is in heating mode, water pump will not operate. 12.3 In OFF state and in any mode, once float switch signal is measured, indoor unit will send OFF signal to outdoor and send the failure code of drainage system to the wired controller, then the water pump will work until the float switch signal is cancelled.
  • Page 94 ___________________________________________________________________________________ 17. Healthy negative ion function When receiving the healthy signal from the wired controller or remote controller, if fan motor is running, the negative ion will work; If the fan motor stops, the negative ion generator will stop. 18. Auto-restart function 18.1 Wired control type: jumper J07 at high level, auto-restart is available, if at low level, auto-restart is cancelled;...
  • Page 95 ___________________________________________________________________________________ 20. Setting method of temperature compensation Tcomp A. Wired control type unit: this function is not available B. Remote control type unit: In cooling or heating mode, there is always with the temp. compensation. In heating mode: In 24℃ heating mode, press SLEEP(or SWING) button 7 times continuously within 5 seconds, indoor buzzer sounds twice, that shows temp.

  • Page 96: Diagnostic Code And Troubleshooting

    ___________________________________________________________________________________ 6. Diagnostic code and trouble shooting 6.1.1. Diagnostic code for outdoor unit ___________________________________________________________________________________ -95-...
  • Page 97 ___________________________________________________________________________________ 6.1.2. Diagnostic code for indoor unit ___________________________________________________________________________________ -96-...

  • Page 98: Trouble Shooting

    ___________________________________________________________________________________ 6.2. Trouble Shooting: Trouble 1: No display on the operation panel start check if display replace display panel and the panel and check unit matched again well if the red diode if the power check the terminal and green diode terminal block is block and the on indoor PCB...
  • Page 99 ___________________________________________________________________________________ Trouble 3: Communication failure between indoor and outdoor start as per the wiring re-wiring, and diagram, check if check again communication wiring is correct check if the if the power cable and the PCB is faulty, communication port communication wire are replace and connecting to the too close, resulting in the...
  • Page 100 ___________________________________________________________________________________ Trouble 8: Outdoor unit alarms sensor failure start as per the wiring re-fix the diagram, check if sensor and connection port check again between sensor and PCB is correct check if the sensor check if the replace sensor is in open circuit or sensor resistor and check the connection port...
  • Page 101 ___________________________________________________________________________________ Failure 11: Low pressure switch failure Reason: 1. Too low system pressure causes that the unit stops and the compressor protection works, the failure can be resumed. 2. Pressure switch wire is not fixed well or in open circuit. start check if the connector check if the 2...

  • Page 102: Outdoor Performance Curves

    ___________________________________________________________________________________ 7. Outdoor performance curves YJU3YH019BARRA-X cooling capacity in relation to temperature 7000 Indoor 6500 temperature W.B./D.B. 6000 5500 5000 14/20 16/22 4500 19/27 22/30 4000 3500 Outdoor temperature D.B. YJU3YH019BARRA-X heating capacity in relation to temperature Indoor temperatureD 8500 7500 6500 5500...
  • Page 103 ___________________________________________________________________________________ YJU4YH025BARRA-X cooling capacity in relation to temperature 10000 Indoor temperature W.B./D.B. 9000 8000 7000 14/20 16/22 6000 19/27 22/30 5000 4000 Outdoor temperature D.B YJU4YH025BARRA-X heating capacity in relation to temperature 10000 Indoor temperatureD 9000 8000 7000 6000 5000 4000 -12.5 -7.5...
  • Page 104 ___________________________________________________________________________________ YJU4YH030BARRA-X cooling capacity in relation to temperature 11000 Indoor temperature W.B./D.B. 10000 9000 8000 14/20 7000 16/22 19/27 22/30 6000 5000 Outdoor temperature D.B. 4U30HS1ERA heating capacity in relation to temperature 12000 Indoor temperatureD. 11000 10000 9000 8000 7000 6000 5000 -15 -12.5 -10...
  • Page 105 ___________________________________________________________________________________ YJU5YH034BARRA-X cooling capacity in relation to temperature 13000 Indoor temperature 12000 W.B./D.B. 11000 10000 9000 14/20 16/22 8000 19/27 22/30 7000 6000 Outdoor temperature D.B. YJU5YH034BARRA-X heating capacity in relation to temperature 14500 Indoor temperatureD. 13500 12500 11500 10500 9500 8500 7500...

  • Page 106: Indoor Air Velocity And Temperature Distribution Curves

    ___________________________________________________________________________________ 8. Indoor air velocity and temperature distribution curves 8.1 YHKMXH009-024BARR-FX a. Cooling / Air Velocity Distribution Cooling Blowy angle:40 Air Velocity Distribution 2.7m 1.5m/s 1.5m/s 1.0m/s 1.0m/s 0.5m/s 0.5m/s b. Cooling / Temperature Distribution Cooling Blowy angle:40 Temperature Distribution 2.7m ___________________________________________________________________________________ -105-...
  • Page 107 ___________________________________________________________________________________ c. Heating / Air Velocity Distribution Heating Blowy angle:70 Air velocity Distribution 2.7m 1.5m/s 1.5m/s 1.0m/s 1.0m/s 0.5m/s 0.5m/s d. Heating / Temperature Distribution Heating Blowy angle:70 Temperature Distribution 2.7m ___________________________________________________________________________________ -106-...
  • Page 108 ___________________________________________________________________________________ 8.2 YHFMXH012-018BARR-FX a) Grounding a. Cooling / Air Velocity Distribution Cooling Blowy angle:25 Air Velocity Distribution 0.5m/s 1.0m/s 1.5m/s b. Cooling / Temperature Distribution Cooling Blowy angle:25 Temperature Distribution ___________________________________________________________________________________ -107-...
  • Page 109 ___________________________________________________________________________________ c. Heating / Air Velocity Distribution Heating Blowy angle:5 Air velocity Distribution 0.5m/s 1.0m/s d. Heating / Temperature Distribution Heating Blowy angle:5 Temperature Distribution ___________________________________________________________________________________ -108-...
  • Page 110 ___________________________________________________________________________________ b) Ceiling a. Cooling / Air Velocity Distribution Cooling Blowy angle:25 Air Velocity Distribution 1.0m/s 0.5m/s b. Cooling / Temperature Distribution Cooling Blowy angle:25 Temperature Distribution ___________________________________________________________________________________ -109-...
  • Page 111 ___________________________________________________________________________________ c. Heating / Air Velocity Distribution Heating Blowy angle:65 Air velocity Distribution d. Heating / Temperature Distribution Heating Blowy angle:65 Temperature Distribution ___________________________________________________________________________________ -110-...

  • Page 112: Air Flow And Static Pressure Chart

    ___________________________________________________________________________________ 9. Air flow and static pressure chart YHDMXH009-012BARR-FX AIRFLOW AND STATIC PRESSURE CHART 20Pa 15Pa 10Pa static pressure (Pa) YHDMXH018BARR-FX AIRFLOW AND STATIC PRESSURE CHART 20Pa 15Pa 10Pa static pressure (Pa) ___________________________________________________________________________________ -111-...
  • Page 113 ___________________________________________________________________________________ YHDMXH024BARR-FX Air flowand static pressure chart 1300 1200 1100 1000 20pa 15pa 10pa Static pressure (pa) ___________________________________________________________________________________ -112-...

  • Page 114: Noise Level

    ___________________________________________________________________________________ 10. Noise level a. Casset type indoor unit .7/ V`nodib dggpnom\o`@ .8/ V`nodib ^ji_dodji@ \4 Wido mpiidib di oc` ijhdi\g ^ji_dodji ]4 V`no di oc` n`hd3\i`^cjd^ ^c\h]`m ^4 Pjdn` g`q`g q\md`n amjh oc` \^op\g a\^ojmn np^c \n mjjh nomp^opm`2 `o^4 Test method According to the testing illustrator, the microphones wearing sponge style cover should be placed in the right position...
  • Page 115 ___________________________________________________________________________________ ___________________________________________________________________________________ -114-...
  • Page 116 ___________________________________________________________________________________ ___________________________________________________________________________________ -115-...
  • Page 117 ___________________________________________________________________________________ b. Convertible type indoor unit Test method According to the testing illustrator, the microphones wearing sponge style cover should be placed in the right position ___________________________________________________________________________________ -116-...
  • Page 118 ___________________________________________________________________________________ ___________________________________________________________________________________ -117-...
  • Page 119 ___________________________________________________________________________________ ___________________________________________________________________________________ -118-...
  • Page 120 ___________________________________________________________________________________ c. Duct type indoor unit Test method According to the testing illustrator, the microphones wearing sponge style cover should be placed in the right position ___________________________________________________________________________________ -119-...
  • Page 121 ___________________________________________________________________________________ ___________________________________________________________________________________ -120-...
  • Page 122 ___________________________________________________________________________________ ___________________________________________________________________________________ -121-...
  • Page 123 ___________________________________________________________________________________ Test method Set the unit: 1) the unit is placed on the rubber whose thickness is 5mm; 2) if the height between the air outlet and ground is less than 1m, block the unit up to 1m.far from ground Test position: After setting the unit ,the test position for the noise is 1m far from the front panel ___________________________________________________________________________________...
  • Page 124 ___________________________________________________________________________________ ___________________________________________________________________________________ -123-...
  • Page 125 ___________________________________________________________________________________ ___________________________________________________________________________________ -124-...

  • Page 126: Sensor Characteristic

    ___________________________________________________________________________________ 11. Sensor characteristic model name code characteristic R25=10KΩ±3% coil temp. sensor 001A3900006 YHKMXH009/ B25/50=3700K±3% 012/018/024 R25=23KΩ±2.5% BAR-FX ambient temp. sensor 001A3900159 B25/50=4200K±3% YHFMXH R25=10KΩ±3% 012/018/024 coil temp. sensor 001A3900006 B25/50=3700K±3% BAR-FX YHDMXH009/ 012/018/024 R25=23KΩ±2.5% ambient temp. sensor 0010451323 BAR-FX B25/50=4200K±4% R25℃=10KΩ±3% discharging temp.
  • Page 127 ___________________________________________________________________________________ R80=50KΩ±3% R80=50KΩ±3% R25=10KΩ±3% R25=10KΩ±3% B25/80=4450K±3% B25/80=4450K±3% B25/50=3700K±3% B25/50=3700K±3% Rnom(KΩ) Rnom(KΩ) Rnom(KΩ) Rnom(KΩ) T(℃) T(℃) T(℃) T(℃) 11600 536.6 -20℃ 90.79 6.95 10860 511.1 85.72 6.68 10170 486.9 80.96 5.43 9529 76.51 8932 442.3 72.33 5.59 8375 421.7 68.41 5.73 7856 402.1 64.73...
  • Page 128 ___________________________________________________________________________________ R25=23KΩ±2.5% R25=23KΩ±2.5% B25/50=4200K±3% B25/50=4200K±3% Rnom(KΩ) Rnom(KΩ) T(℃) T(℃) -20℃ 281.34 22℃ 26.54 263.56 25.3 -19℃ 23℃ -18℃ 247.04 24℃ 24.12 231.66 -17℃ 25℃ -16℃ 217.35 26℃ 21.94 204.02 20.94 -15℃ 27℃ -14℃ 191.61 28℃ 19.99 -13℃ 180.04 29℃ 19.09 -12℃...

  • Page 129: Controller Functions

    ___________________________________________________________________________________ 12. Controller functions Base Operation Remote controller SPEED 1. Unit start Press ON/OFF on the remote controller, unit starts. 2.Select operation mode Press MODE button. For each press, operation mode changes as follows: Remote controller: AUTO COOL HEAT 3.Select temp.setting Press button TEMP-...

  • Page 130: Sleep Operation

    ___________________________________________________________________________________ Sleep Operation In AUTO mode The unit operaters in corresponding sleep mode Before going to bed,you can simply press the SLEEP adapted to the automatically selected operation button and unit will operate in SLEEP mode and bring mode. you a sound sleep. 4.
  • Page 131 ___________________________________________________________________________________ Timer On/Off On-Off Operation Set clock correctly before starting TIMER operation. 1.After unit starts, select your desired operation mode. 2.Press TIMER button to change TIMER mode. Every time the button is pressed, display changes as follows: Remote controller: BLANK TIMER ON TIMER OFF TIMER ON-OFF...
  • Page 132 ___________________________________________________________________________________ Wired controller Fan speed switch Mode switch Change wind speed Choose running mode Swing switch Open and close air flap Health switch Used to control oxygen TEMP switch function and negative ion Used for changing set temperature MODE SWING MODE CENTRAL Time switch...
  • Page 133 ___________________________________________________________________________________ ON/OFF operation Press ON/OFF switch on line controller directly The line controller displays the running state in the latest time (timing and swing state may not be displayed). MODE SWING 1. Press "ON/OFF" switch. MODE The air conditioner starts operating, and the light on the OPERATION TEMP HEALTH...
  • Page 134 ___________________________________________________________________________________ Present time setting The timing is based on the real time. Thus, the real time should be regulated in advance. The clock regulation steps are as follows: 1.Press "CLOCK" switch "CLOCK" flickers, and the time displayed is the real time. MODE SWING MODE...
  • Page 135 ___________________________________________________________________________________ Timing setting OFF timing: when a set time has elapsed, the unit stops running. ON timing: when a set time has elapsed, the unit starts. Press "ON/OFF"switch firstly, and set up operation mode. Please regulate the clock in advance before using the MODE SWING timing function.
  • Page 136 ___________________________________________________________________________________ Query indoor malfunction history: In the state of power on or power off, press [CHECK] button, enter the malfunction-querying mode of all indoor units in the group. Then [CHECK] and [UNIT NO.] will display, and the actual indoor numbers will be displayed in some sequence (unit number is in decimals).

  • Page 137: Installation Manual For Wire Controller

    ___________________________________________________________________________________ Installation Manual For Wire Controller 1. Take down wire controller from the holder 2. Install the controller holder According to the position of 2 screw holes on the Wire controller holder, drill 2 holes on the wall, and strike the wood 52¡...

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