TECHNICAL SPECIFICATION TS-M5WMY-L (ii) M5LCY-I … TM2012/M5W… · TECHNICAL SPECIFICATION TS-M5WMY-L_(ii) ... Engineering and Physical Data ----- 12 Performance Data ... Refrigerant

TECHNICAL SPECIFICATION TS-M5WMY-L_(ii)

Supercedes: M5LCY-I (F)_(i)-0006

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Models : Indoor Outdoor

Cooling Only

M5WMY10L M5LCY10F

M5WMY15L M5LCY15F

M5WMY20L M5LCY20C

M5WMY25L M5LCY25C

Heatpump

M5WMY10LR M5LCY10FR

M5WMY15LR M5LCY15FR

M5WMY20LR M5LCY20CR

M5WMY25LR M5LCY25CR �

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Nomenclature ---------------------------------------- 1

- Product Line-up

Application Information ---------------------------------------- 4

- Operating Range - Refrigeration Circuit

- Installation Guideline

Sound Data ---------------------------------------- 11

- Sound Pressure Level

Engineering and Physical Data ---------------------------------------- 12

Performance Data ---------------------------------------- 13

Outline & Dimension ---------------------------------------- 17

Wiring Diagram ---------------------------------------- 19

Troubleshooting ---------------------------------------- 23

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Brand M : McQuay

Product Specification Variation D: Forth Issue

Refrigerant 5: R410A

Model “ “: Cooling only model R: Heatpump

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Product Type WM: Wall Mounted Filtration

B: Bio Filter L: Saranet Filter

Size 10 : 8700 - 9700 Btu/h 15 : 11,000 - 11,900 Btu/h 20: 18,600 - 19,176 Btu/h 25: 21,200 – 21,837 Btu/h

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Product series L : L Series �

Brand M : McQuay

Refrigerant 5: R410A

Compressor Brand D: Daikin�

Product Type LC: Single Split Condensing Unit

Product series C: C Series F: F Series �

Electrical Characteristics A : 50Hz / 1Ph / 220-240V

Grille D: Grille D

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Market Region C: Export with CE mark

System Y: DC Inverter with Daikin Protocol

Size 10 : 8700 - 9700 Btu/h 15 : 11,000 - 11,900 Btu/h 20: 18,600 - 19,176 Btu/h 25: 21,200 – 21,837 Btu/h

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System Y: DC Inverter with Daikin Protocol

Product Specification Variation A: First Issue

Specification O: Standard Unit

Market Region C: Export with CE mark

Electrical Characteristics A : 50Hz / 1Ph / 220-240V

Model “ “: Cooling only model R: Heatpump

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Product Line-Up Indoor Unit M5WMY

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15LR ACBDD� X X X X X




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Outdoor Unit M5LCY

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15F ACDOA X X X X X

20C ACDOA X X X X X

25C ACDOA X X X X X

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15FR ACDOA X X X X X

20CR ACDOA X X X X X

25CR ACDOA X X X X X

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�� Operating Range Ensure the operating temperature is in allowance range. Cooling

M5WMY 10/15L/LR – M5LCY 10/15F/FR M5WMY 20/25L/LR – M5LCY 20/25C/CR

Heating - M5LCY 10/15 FR, A5LCY 20/25 CR


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Refrigerant Circuit Model: M5WMY 10/15L – M5LCY 10/15F


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Model: A5WMY 10/15LR – A5LCY 10/15FR


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Model: M5WMY 20/25L – M5LCY 20/25C


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Model: A5WMY 20/25LR – A5LCY 20/25CR �

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Installation Guideline

Installation Diagram

Outdoor Clearance

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Sharp edges and coil surfaces are potential injury hazard. Avoid from contact with them. Caution

If the condensing unit is operated in an atmosphere containing oils (including machine oils), salt (coastal area), sulphide gas (near hot spring, oil refinery plant), such as substances may lead to failure of the unit.

Caution


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Cable Size

Model Unit M5WMY 10/15L/LR M5WMY 20/25L/LR Power supply cable size Number of wire

mm2 1.5 3

Interconnection cable size Number of wire

mm2 1.5 4

Recommended fuse A 15 20 Refrigerant Piping

When the piping length becomes too long, both the capacity and reliability drop. As the number of bend increases, system piping resistance to the refrigerant flow increases, thus lowering the cooling capacity, and as the result the compressor may become defective. Always choose the shortest path and follow the recommendation as tabulated below:

Additional Charge The refrigerant gas is charged in the outdoor unit and if the piping length is 7.5m, additional charge of the refrigerant after vacuuming is not necessary. When the piping length is more than 7.5m, additional charge (g) per additional 1m length as tabulated. R410A – Heatpump

Indoor M5WMY 10/15L/LR M5WMY 20L/LR Outdoor M5LCY 10/15F/FR M5LCY 20C/CR

Add. Charge, g/m 20

Model Indoor M5WMY 10/15L/LR M5WMY 20L/LR M5WMY 25L/LR Outdoor M5LCY 10/15F/FR M5LCY 20C/CR M5LCY 25C/CR

Min. Length, m 3 Max. Length, m 20 30

Max. Elevation, m 10 Liquid pipe, mm 6.4 Gas pipe,mm 9.5 12.7 15.88

Note: Installation and maintenance are to be performed only by qualified personnel who are familiar with local codes and regulations, and experienced with this type of equipment.


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Model Speed 1/1 Octave Sound Pressure Level (dB) ref 20�Pa Overall (dBA)

Noise Criteria 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz

M5WMY 10L/LR

Turbo 43 39 37 37 33 26 13 41 36 High 42 38 37 36 32 24 12 40 35 Med 37 33 32 30 25 17 13 34 29 Low 32 29 28 24 19 14 13 29 22

Quiet 21 22 20 15 10 7 8 21 -

M5WMY 15L/LR


Quiet 24 22 21 17 11 7 7 22 -

M5WMY 20L/LR


Quiet 28 32 30 28 22 14 10 32 26

M5WMY 25L/LR


Quiet 28 33 32 28 23 17 9 33 26

Model Measuring Location

M5WMY 10L/LR

M5WMY 15L/LR

M5WMY 20L/LR

M5WMY 25L/LR

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Standard: JIS C 9612

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Engineering Data – R410A

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TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI TC SC PI21°C 2.40 1.99 0.55 2.32 1.94 0.60 2.23 1.89 0.65 2.14 1.84 0.70 1.97 1.71 0.76 1.82 1.61 0.8424°C 2.41 2.39 0.55 2.32 2.32 0.60 2.24 2.24 0.65 2.15 2.15 0.70 1.97 1.97 0.76 1.82 1.82 0.8427°C 2.43 2.43 0.56 2.34 2.34 0.60 2.26 2.26 0.65 2.18 2.18 0.71 2.01 2.01 0.77 1.87 1.87 0.8530°C 2.50 2.50 0.56 2.43 2.43 0.60 2.35 2.35 0.66 2.28 2.28 0.71 2.11 2.11 0.77 1.98 1.98 0.8524°C 2.65 1.86 0.56 2.56 1.81 0.61 2.46 1.77 0.66 2.37 1.72 0.72 2.17 1.60 0.78 2.01 1.51 0.8627°C 2.65 2.13 0.56 2.56 2.08 0.61 2.47 2.03 0.66 2.37 1.99 0.72 2.18 1.86 0.78 2.01 1.76 0.8630°C 2.66 2.63 0.56 2.57 2.57 0.61 2.47 2.47 0.66 2.38 2.38 0.72 2.19 2.19 0.78 2.03 2.03 0.8633°C 2.69 2.69 0.56 2.60 2.60 0.61 2.52 2.52 0.66 2.43 2.43 0.72 2.25 2.25 0.78 2.10 2.10 0.8627°C 2.92 1.82 0.57 2.82 1.78 0.62 2.71 1.73 0.67 2.61 1.69 0.73 2.40 1.57 0.79 2.22 1.48 0.8730°C 2.92 2.22 0.57 2.82 2.17 0.62 2.71 2.12 0.67 2.61 2.07 0.73 2.40 1.94 0.79 2.22 1.84 0.8733°C 2.92 2.59 0.57 2.82 2.54 0.62 2.72 2.49 0.67 2.61 2.44 0.73 2.40 2.29 0.79 2.23 2.18 0.8736°C 2.93 2.93 0.57 2.83 2.83 0.62 2.73 2.73 0.67 2.63 2.63 0.73 2.43 2.43 0.79 2.26 2.26 0.8821°C 2.50 2.08 0.56 2.41 2.03 0.61 2.32 1.97 0.66 2.22 1.92 0.71 2.04 1.79 0.77 1.88 1.68 0.8524°C 2.51 2.51 0.56 2.42 2.42 0.61 2.33 2.33 0.66 2.23 2.23 0.71 2.05 2.05 0.77 1.90 1.90 0.8527°C 2.54 2.54 0.56 2.45 2.45 0.61 2.37 2.37 0.66 2.28 2.28 0.71 2.11 2.11 0.78 1.96 1.96 0.8630°C 2.64 2.64 0.57 2.57 2.57 0.61 2.49 2.49 0.66 2.41 2.41 0.72 2.23 2.23 0.78 2.09 2.09 0.8624°C 2.76 1.97 0.57 2.66 1.92 0.62 2.56 1.87 0.67 2.45 1.82 0.72 2.25 1.69 0.78 2.08 1.60 0.8627°C 2.76 2.27 0.57 2.66 2.22 0.62 2.56 2.17 0.67 2.46 2.12 0.72 2.26 1.98 0.78 2.09 1.87 0.8630°C 2.77 2.77 0.57 2.68 2.68 0.62 2.58 2.58 0.67 2.48 2.48 0.72 2.29 2.29 0.79 2.12 2.12 0.8733°C 2.82 2.82 0.57 2.73 2.73 0.62 2.65 2.65 0.67 2.56 2.56 0.73 2.37 2.37 0.79 2.22 2.22 0.8727°C 3.03 1.93 0.58 2.92 1.88 0.63 2.81 1.83 0.68 2.70 1.79 0.74 2.48 1.67 0.80 2.30 1.57 0.8830°C 3.03 2.37 0.58 2.92 2.32 0.63 2.82 2.26 0.68 2.70 2.21 0.74 2.49 2.07 0.80 2.30 1.97 0.8833°C 3.04 2.77 0.58 2.93 2.72 0.63 2.82 2.66 0.68 2.71 2.61 0.74 2.50 2.45 0.80 2.31 2.31 0.8836°C 3.06 3.06 0.58 2.96 2.96 0.63 2.85 2.85 0.68 2.75 2.75 0.74 2.54 2.54 0.80 2.37 2.37 0.8921°C 2.59 2.17 0.56 2.50 2.12 0.61 2.40 2.06 0.66 2.30 2.00 0.72 2.11 1.87 0.78 1.95 1.76 0.8624°C 2.61 2.61 0.56 2.51 2.51 0.61 2.42 2.42 0.66 2.32 2.32 0.72 2.13 2.13 0.78 1.97 1.97 0.8627°C 2.65 2.65 0.57 2.56 2.56 0.61 2.48 2.48 0.66 2.39 2.39 0.72 2.21 2.21 0.78 2.06 2.06 0.8630°C 2.78 2.78 0.57 2.70 2.70 0.62 2.62 2.62 0.67 2.53 2.53 0.73 2.34 2.34 0.79 2.19 2.19 0.8724°C 2.86 2.08 0.57 2.75 2.03 0.62 2.65 1.98 0.67 2.54 1.93 0.73 2.33 1.80 0.79 2.15 1.69 0.8727°C 2.86 2.41 0.57 2.76 2.36 0.62 2.66 2.30 0.67 2.55 2.24 0.73 2.34 2.10 0.79 2.16 1.99 0.8730°C 2.89 2.89 0.58 2.79 2.79 0.62 2.69 2.69 0.67 2.58 2.58 0.73 2.38 2.38 0.79 2.21 2.21 0.8833°C 2.95 2.95 0.58 2.86 2.86 0.63 2.78 2.78 0.68 2.68 2.68 0.74 2.49 2.49 0.80 2.33 2.33 0.8827°C 3.13 2.04 0.58 3.02 1.99 0.63 2.91 1.94 0.69 2.79 1.89 0.74 2.56 1.77 0.81 2.37 1.67 0.8930°C 3.14 2.51 0.58 3.03 2.47 0.63 2.91 2.41 0.69 2.80 2.36 0.74 2.57 2.21 0.81 2.38 2.09 0.8933°C 3.15 2.94 0.59 3.04 2.89 0.63 2.93 2.83 0.69 2.81 2.77 0.75 2.59 2.59 0.81 2.40 2.40 0.8936°C 3.18 3.18 0.59 3.08 3.08 0.64 2.97 2.97 0.69 2.87 2.87 0.75 2.65 2.65 0.81 2.47 2.47 0.90

345

16°C

19°C

22°C

215

16°C

19°C

22°C

272

16°C

19°C

22°C

AFR (CFM)

EWB EDBOutdoor temperature

19°C 25°C 30°C 35°C 40°C 46°C

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Model: M5WMY10 LR – M5LCY10 FR Heating Mode

Indoor DB°C TC PI TC PI TC PI TC PI TC PI TC PI

16 1.42 0.50 1.77 0.54 2.11 0.57 2.46 0.61 2.87 0.65 3.14 0.6818 1.41 0.53 1.75 0.56 2.10 0.60 2.44 0.63 2.85 0.68 3.13 0.7020 1.40 0.55 1.74 0.59 2.09 0.62 2.43 0.66 2.84 0.70 3.11 0.7321 1.39 0.56 1.73 0.60 2.08 0.63 2.42 0.67 2.84 0.71 3.11 0.7422 1.38 0.58 1.73 0.61 2.07 0.65 2.41 0.68 2.83 0.72 3.10 0.7524 1.37 0.61 1.71 0.64 2.06 0.68 2.40 0.71 2.81 0.75 3.08 0.78

Outdoor WB°C10-15 -10 -5 0 6

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Remark: Notes:AFR: Air flow rate (CFM) 1. Ratings shown are gross capacities which do not include a deduction for indoor fan motor heat.EWB: Entering Wet Bulb Temp. (�C) 2. shows nominal capacities.EDB: Entering Dry Bulb Temp. (�C) 3. Direct interpolation is permissible. Do not extrapolate.TC: Total Cooling / Heating Capacity (kW) 4. Unit is able to operate at ambient from 10 �C to 46�C DB (cooling) / -15 �C to 18�C WB (heating) without pressure trip.SC: Sensible Cooling Capacity (kW)PI: Power Input �

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Model: M5WMY15 L/LR – M5LCY15 F/FR Cooling Mode


358

16°C

19°C

22°C

232

16°C

19°C

22°C

282

16°C

19°C

22°C

AFR (CFM)


19°C 25°C 30°C 35°C 40°C 46°C

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Model: M5WMY15 LR – M5LCY15 FR Heating Mode


16 1.76 0.67 2.18 0.72 2.60 0.76 3.03 0.81 3.54 0.86 3.87 0.9018 1.74 0.70 2.16 0.75 2.59 0.79 3.01 0.84 3.52 0.90 3.86 0.9420 1.72 0.73 2.14 0.78 2.57 0.83 2.99 0.88 3.50 0.93 3.84 0.9721 1.71 0.75 2.14 0.80 2.56 0.84 2.98 0.89 3.49 0.95 3.83 0.9822 1.70 0.77 2.13 0.82 2.55 0.86 2.98 0.91 3.48 0.96 3.82 1.0024 1.68 0.80 2.11 0.85 2.53 0.90 2.96 0.94 3.46 1.00 3.80 1.03

Outdoor WB°C10-15 -10 -5 0 6

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Remark: Notes:AFR: Air flow rate (CFM) 1. Ratings shown are gross capacities which do not include a deduction for indoor fan motor heat.EWB: Entering Wet Bulb Temp. (�C) 2. shows nominal capacities.EDB: Entering Dry Bulb Temp. (�C) 3. Direct interpolation is permissible. Do not extrapolate.TC: Total Cooling / Heating Capacity (kW) 4. Unit is able to operate at ambient from 10 �C to 46�C DB (cooling) / -15 �C to 18�C WB (heating) without pressure trip.SC: Sensible Cooling Capacity (kW)PI: Power Input �

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Model: M5WMY20 L/LR – M5LCY20 C/CR Cooling Mode


AFR (CFM)


19°C 25°C 30°C 35°C 40°C 46°C

418

16°C

19°C

22°C

471

16°C

19°C

22°C

529

16°C

19°C

22°C

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Model: M5WMY20 LR – M5LCY20 CR Heating Mode


16 2.82 1.08 3.50 1.16 4.18 1.23 4.86 1.31 5.68 1.39 6.22 1.4618 2.79 1.13 3.47 1.21 4.16 1.28 4.84 1.36 5.65 1.45 6.19 1.5120 2.76 1.18 3.44 1.26 4.13 1.33 4.81 1.41 5.62 1.50 6.16 1.5621 2.75 1.21 3.43 1.29 4.11 1.36 4.79 1.44 5.61 1.53 6.15 1.5922 2.73 1.24 3.42 1.31 4.10 1.39 4.78 1.46 5.59 1.55 6.13 1.6124 2.70 1.30 3.39 1.37 4.07 1.45 4.75 1.52 5.56 1.61 6.10 1.67

Outdoor WB°C10-15 -10 -5 0 6

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Remark: Notes:AFR: Air flow rate (CFM) 1. Ratings shown are gross capacities which do not include a deduction for indoor fan motor heat.EWB: Entering Wet Bulb Temp. (�C) 2. shows nominal capacities.EDB: Entering Dry Bulb Temp. (�C) 3. Direct interpolation is permissible. Do not extrapolate.TC: Total Cooling / Heating Capacity (kW) 4. Unit is able to operate at ambient from -10 �C to 46�C DB (cooling) / -15 �C to 18�C WB (heating) without pressure trip.SC: Sensible Cooling Capacity (kW)PI: Power Input �

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Model: M5WMY25 L/LR – M5LCY25 C/CR Cooling Mode


AFR (CFM)


19°C 25°C 30°C 35°C 40°C 46°C

507

16°C

19°C

22°C

585

16°C

19°C

22°C

654

16°C

19°C

22°C

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Model: M5WMY25 LR – M5LCY25 CR Heating Mode


16 3.21 1.23 3.98 1.32 4.76 1.40 5.54 1.49 6.47 1.59 7.08 1.6618 3.18 1.29 3.95 1.38 4.73 1.46 5.51 1.55 6.43 1.65 7.05 1.7220 3.14 1.35 3.92 1.44 4.70 1.52 5.47 1.61 6.40 1.71 7.02 1.7821 3.13 1.38 3.91 1.47 4.68 1.55 5.45 1.64 6.39 1.74 7.01 1.8122 3.11 1.41 3.90 1.50 4.67 1.58 5.44 1.67 6.37 1.77 6.98 1.8424 3.08 1.48 3.86 1.56 4.63 1.65 5.41 1.73 6.33 1.83 6.95 1.90

Outdoor WB°C10-15 -10 -5 0 6

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Remark: Notes:AFR: Air flow rate (CFM) 1. Ratings shown are gross capacities which do not include a deduction for indoor fan motor heat.EWB: Entering Wet Bulb Temp. (�C) 2. shows nominal capacities.EDB: Entering Dry Bulb Temp. (�C) 3. Direct interpolation is permissible. Do not extrapolate.TC: Total Cooling / Heating Capacity (kW) 4. Unit is able to operate at ambient from -10 �C to 46�C DB (cooling) / -15 �C to 18�C WB (heating) without pressure trip.SC: Sensible Cooling Capacity (kW)PI: Power Input �

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Model: M5WMY 10/15/20/25 L/LR

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Outdoor Unit

Model: M5LCY 10/15 F/FR

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Model: M5LCY 20/25 C/CR

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Indoor Unit Outdoor Unit Model: M5WMY 10/15L Model: M5LCY 10/15F �

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Indoor Unit Outdoor Unit Model: M5WMY 10/15LR Model: M5LCY 10/15FR �

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Indoor Unit Outdoor Unit Model: M5WMY 20/25L Model: M5LCY 20/25C

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Indoor Unit Outdoor Unit Model: M5WMY 20/25LR Model: M5LCY 20/25CR

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Error Code Diagnosis by GS01 �

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Diagnosis Step 1. Hold down ON TIMER CANCEL button or OFF TIMER CANCEL button for 5 seconds, a “ ”

indication flashes on the temperature display section. 2. Press TIMER CANCEL repeatedly until indoor buzzer produces a long beep. This indicates the

error code, refers to Error Codes table and is displayed on the temperature display section. 3. A short beep or two consecutive beeps indicate non-corresponding error codes. 4. To cancel the error code display, hold down ON TIMER CANCEL button or OFF TIMER CANCEL

button for 5 seconds. Alternatively, the code display will cancel itself if the button is not pressed for 1 minute.

Error Code Diagnosis by Unit Last State Memory 1. Remove battery from remote controller 2. Replace battery again into remote controller 3. Press Mode & ON/OFF buttons together 4. Press Mode button to 5:00 5. Press ON/OFF once 6. Repeat the fault diagnosis steps by wireless handset GS01 �

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Troubleshooting Guidelines

Error Codes Error Description Action

0 Normal No action.

U0 Insufficient gas

1. Check sensor connection.

2. Check stop valve.

3. Check for gas leak.

4. Check the EXV.

5. Check H8.

U2 DC voltage out of range

1. Check the supply voltage.

2. Check the outdoor fan by rotating with hand.

3. Restart the system.

4. Check power supply waveform.

U4 Communication error

1. Check the indoor unit - outdoor unit connection wires.

2. Check the voltage of the signal terminal.

3. Check the indoor fan by rotating with hand.

4. Check the power supply waveform.

U7 Signal transmission error (on outdoor unit PCB)


2. Replace outdoor PCB.

3. Long term monitor on external factor.

UA Installation error 1. Check the indoor and outdoor unit model name.

2. Check the part code on the indoor and outdoor PCB.

UF Communication Error (indoor and outdoor) piping and wiring

1. Check the wiring and piping between indoor and outdoor units. 2. Check refrigerant level.

3. Check refrigerant line on blockage.

UH Anti-freeze function in other room

1. Check which indoor having error A5.

2. Check the supply voltage.

3. Check the indoor and outdoor model name.

A1 Indoor PCB error 1. Check connector connection.

2. Replace indoor PCB.

A3 Water pump error

1. Check for short circuit.

2. Check connection on drain pump.


4. Check the drain water level.

5. Check float switch connection.

A5 Antifreeze

1. Check the air passage.

2. Check the intake air filter.

3. Check dust accumulation on indoor coil.

4. Check wiring and piping.

5. Check the EXV.

6. Check indoor coil sensor resistance value.

7. Check refrigerant level.

8. Check room sensor resistance value.


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A6 Indoor fan motor abnormal

1. Check the indoor fan by rotating with hand.

2. Replace indoor fan motor if not rotating smoothly.

3. Check fan motor voltage.

4. Replace indoor PCB if not at the rated voltage.

5. Check fan capacitor's conductivity (AC Motor).

6. Replace fan capacitor if there's conductivity.

C4 Indoor heat exchanger thermistor short/ open 1. Check the connector connection.

2. Check the sensor resistance value. C9 Indoor room thermistor short/

open

E1 Outdoor PCB error


2. Replace outdoor PCB.

3. Check to see that the unit is grounded.

4. Check power supply waveform.

E3 High pressure protection

1. Check installation conditions.


3. Check HPS connection.

4. Check pressure level by pressure gauge.

5. Wait for 10 minutes then restart the system.

6. Check if H3 is displayed.

E4 Low pressure protection


2. Check low pressure sensor connection.

3. Check low side pressure and voltage.

4. Check outdoor coil sensor connection.

5. Check sensor resistance value.

6. Check refrigerant level.

E5 Compressor motor lock/overload

1. Check connection on discharge pipe sensor.

2. Check discharge pipe sensor resistance value.

3. Check the EXV.

4. Check the refrigerant line on blockage or shortage.

E6 Compressor lock/start-up error 1. Check with inverter checker.

2. Check the EXV.

E7 Outdoor DC fan motor lock 1. Check the fan motor connection.

2. Check if foreign matters exist around or in the fan.

E8 Ac input over current

1. Measure the input current.

2. Check the main circuit electrolytic capacitor.

3. Check with inverter checker.

4. Check discharge pressure.

5. Check the installation condition.


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E9 EXV error


2. Check the EXV connection.

3. Check EXV coil resistance.

4. Check sensors resistance value.

EA 4-way valve error

1. Check 4WV coil connection.

2. Check the continuity of the 4WV coil and harness.

3. Check the 4WV switching output.

4. Check sensor connection.



F3 Discharge pipe overheat

1. Check the discharge pipe sensor.

2. Check the EXV.


F6 Heat exchanger overheat

1. Check the installation space.

2. Check the outdoor fan.

3. Check the EXV.

4. Check the coil sensor.

H0 Compressor sensor system abnormality

1. Check the reactor connection.

2. Check the compressor connection. 3. Measure the resistance value between the reactor terminals. 4. Measure the resistance value between the compressor terminals.

H3 High pressure switch error 1. Check pressure sensor connection.

2. Check HPS continuity.

H6 Position sensor abnormality

1. Check for short circuit.

2. Check the electrolytic capacitor voltage.

3. Check compressor harness wire.


H8 AC current sensor error


2. Check capacitor voltage.

3. Measure the rectifier input voltage.

4. Check compressor harness wire.


H9 Outdoor air thermistor short / open

1. Check the sensor connection.

2. Check the sensor resistance value.

J1 Pressure sensor error 1. Check pressure sensor connection.

2. Check pressure and voltage level.


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J3 Compressor discharge pipe thermistor short /open / misplaced

1. Check the sensor connection.

2. Check the sensor resistance value.

3. Check indoor coil sensor resistance value.

J5 Suction pipe thermistor short/ open

Same as H9.

J6 Outdoor heat exchanger

J7 Subcooling heat exchanger thermistor short/ open

J8 Liquid pipe thermistor short/ open

J9 Gas pipe thermistor abnormality

LC Communication Error (control PCB and inverter PCB)

1. Check fan motor connection.

2. Check if LED blinking normally at outdoor PCB.

L1 Outdoor PCB error

1. Check the range of power supply.

2. Check connection between compressor and PCB.

3. Check fan motor resistance.

4. Check the power supply waveform.

L3 Electrical box temperature rise



3. Check heat sink temperature and conditions.

4. Check outdoor fan.


L4 Heat sink overheat


2. Check the silicon grease condition on heat sink.


4. Check heat sink temperature and conditions.

5. Check outdoor fan.


L5 IPM error / IGBT error



3. Check the power transistor and supply voltage

5. Check the compressor phase.

6. Check the discharge pressure.


L8 Electrical thermal switch Contact dealers for assistance.

L9 Stall prevention

1. Check installation conditions.

2. Check stop valve. 3. Check difference between high and low pressure side. 4. Check continuity on the power transistor.

5. Check the output voltage.


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P1 Open phase or voltage unbalance

1. Check LED on outdoor PCB.

2. Check open phase of power supply voltage.

3. Check voltage balance between phases.

P4 Heat sink thermistor short / open Same as H9.

PJ Capacity setting error 1. Check the connection between capacitor and outdoor PCB.

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Documents

TECHNICAL SPECIFICATION TS-M5WMY-L (ii) M5LCY-I … TM2012/M5W… · TECHNICAL SPECIFICATION TS-M5WMY-L_(ii) ... Engineering and Physical Data ----- 12 Performance Data ... Refrigerant