Guia Service

7/29/2019 Guia Service

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INVERTER

SERVICE MANUAL

ROOM AIR CONDITIONERDC INVERTER

SPLIT WALL-MOUNTED TYPE

Complete System Name Item Numbers ModelsiDWM26 857620/1 Derby Split Inverter 2.6kWiDWM35 857622/3 Derby Split Inverter 3.5kWiDWM50 857624/5 Derby Split Inverter 5.0kW

iDWM70 857628/9 Derby Split Inverter 7.0kW


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Table of Contents

1. Precaution ..................................................................................................................................................... 11.1 Safety Precaution ............................................................................................................................... 11.2 Warning .............................................................................................................................................. 1

2. Features ......................................................................................................................................................... 33. Dimension ..................................................................................................................................................... 5

3.1 Indoor Unit ............................................................................................................................................. 53.2 Outdoor Unit .......................................................................................................................................... 6

4. Specification ................................................................................................................................................. 75. Refrigerant cycle diagram ........................................................................................................................... 86. Wiring diagram ............................................................................................................................................. 9

6.1 Indoor Unit .......................................................................................................................................... 96.2 Outdoor Unit ..................................................................................................................................... 11

7. Installation details ...................................................................................................................................... 137.1 Wrench torque sheet for installation ................................................................................................. 137.2 Minimum Electrical Requirements .................................................................................................... 137.3 Pipe Length and the elevation .......................................................................................................... 137.4 Air purging of the piping and indoor unit ........................................................................................... 137.5 Pumping down (Re-installation) ........................................................................................................ 157.6 Re-air purging (Re-installation) ......................................................................................................... 167.7 Balance refrigerant of the 2-way, 3-way valves ................................................................................ 177.8 Evacuation ........................................................................................................................................ 187.9 Gas charging .................................................................................................................................... 19

8.Capacity Table................. ............................................................................................................................208.1 iDWM26 ............................................................................................................................................ 208.2 iDWM35 ............................................................................................................................................ 218.3 iDWM50 ............................................................................................................................................ 228.4 iDWM70 ............................................................................................................................................ 23

9. Electronic function ..................................................................................................................................... 24


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9.1 Abbreviation ...................................................................................................................................... 249.2 Display function ................................................................................................................................ 249.3 Protection .......................................................................................................................................... 259.4 Fan-Only Mode ................................................................................................................................. 269.5 Cooling Mode .................................................................................................................................... 269.6 Drying mode ..................................................................................................................................... 289.7 Heating mode ................................................................................................................................... 299.8 Auto Mode Function ......................................................................................................................... 319.9 Forced operation function ................................................................................................................. 329.10 Action of 4-way valve ........................................................................................................................ 329.11 Two speeds outdoor fan function ..................................................................................................... 329.12 Timer function ................................................................................................................................... 329.13 Sleep function mode ......................................................................................................................... 339.14 Auto-Restart function ........................................................................................................................ 33

10. Troubleshooting ....................................................................................................................................... 3410.1 Indoor Unit Error Display .................................................................................................................. 3510.2 Diagnosis and Solution ..................................................................................................................... 3610.3 Key Part Checking ............................................................................................................................ 39

11. Explosion Diagrams ................................................................................................................................. 4111.1 IDWMG26 - INDOOR ....................................................................................................................... 4111.2 IDWMZ26 - OUTDOOR .................................................................................................................... 4311.3 IDWMG35 - INDOOR ....................................................................................................................... 4511.4 IDWMZ35 - OUTDOOR .................................................................................................................... 4711.5 IDWMG50 - INDOOR .......................................................................................................................4911.6 IDWMZ50 - OUTDOOR .................................................................................................................... 5111.7 IDWMG70 - INDOOR ........................................................................................................................5311.8 IDWMZ70 - OUTDOOR .................................................................................................................... 55


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1

1. Precaution1.1 Safety Precaution

To prevent injury to the user or other

people and property damage, the following

instructions must be followed.

Incorrect operation due to ignoring

instruction will cause harm or damage.

Before service unit, be sure to read

this service manual at first.

1.2 Warning

Installation

Do not use a defective or underrated circuit

breaker. Use this appliance on a dedicated

circuit.There is risk of fire or electric shock.

For electrical work, contact the dealer,

seller, a qualified electrician, or an Authorized

service center.Do not disassemble or repair the product, there

is risk of fire or electric shock.Always ground the product.

There is risk of fire or electric shock.

Install the panel and the cover of control

box securely.

There is risk of fire or electric shock.Always install a dedicated circuit

and breaker.Improper wiring or installation may cause fire or

electric shock.Use the correctly rated breaker of fuse.


Do not modify or extend the power cable.


Do not install, remove, or reinstall the unit

by yourself (customer).There is risk of fire, electric shock, explosion,

or injury.Be caution when unpacking and

installing the product.Sharp edges could cause injury, be

especially careful of the case edges and the

fins on the condenser and evaporator.For installation, always contact the dealer

or an Authorized service center.There is risk of fire, electric shock, explosion,

or injury.Do not install the product on a defective

installation stand.It may cause injury, accident, or damage to

the product.Be sure the installation area does

not deteriorate with age.If the base collapses, the air conditioner could fall

with it, causing property damage, product failure,and personal injury.

Do not let the air conditioner run for a

long time when the humidity is very high and a

door or a window is left open.Moisture may condense and wet or

damage furniture.Take care to ensure that power cable could

not be pulled out or damaged during operation.There is risk of fire or electric shock.

Do not place anything on the power cable.


Do not plug or unplug the power supply

plug during operation.There is risk of fire or electric shock.

Do not touch (operation) the product with

wet hands.There is risk of fire or electric shock.

Do not place a heater or other appliance

near the power cable.There is risk of fire and electric shock.

Do not allow water to run into electric parts.It may cause fire, failure of the product, or electricshock.

Do not store or use flammable gas

or combustible near the product.There is risk of fire or failure of product.

Do not use the product in a tightly

closed space for a long time.Oxygen deficiency could occur.

When flammable gas leaks, turn off the gas

and open a window for ventilation before turning

the product on.Do not use the telephone or turn switches on or

off. There is risk of explosion or fire.If strange sounds or smoke comes from

product, turn the breaker off or disconnect the

power supply cable.There is risk of electric shock or fire.

Stop operation and close the window in

storm or hurricane. If possible, remove the

product from the window before the hurricane

arrives.


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2

There is risk of property damage, failure of

product, or electric shock.Do not open the inlet grill of the product

during operation. (Do not touch the

electrostatic filter, if the unit is so equipped.)There is risk of physical injury, electric shock,

or product failure.When the product is soaked (flooded

or submerged), contact an Authorized

service center.There is risk of fire or electric shock.

Be caution that water does not enter the

product.There is risk of fire, electric shock, or

product damage.Ventilate the product from time to time

when operating it together with a stove, etc. There is risk of fire or electric shock.

Turn the main power off when cleaning

or maintaining the product.There is risk of electric shock.

When the product is not be used for a

long time, disconnect the power supply plug or

turn off the breaker.There is risk of product damage or failure,

or unintended operation.Take care to ensure that nobody could

step on or fall onto the outdoor unit.This could result in personal injury and

product damage.

CAUTION

Always check for gas (refrigerant) leakageafter installation or repair of product.Low refrigerant levels may cause failure of product.

Install the drain hose to ensure that water

is drained away properly.A bad connection may cause water leakage.

Keep level even when installing the product.

To avoid vibration of water leakage.

Do not install the product where the noise

or hot air from the outdoor unit could

damage the neighbourhoods.It may cause a problem for your neighbours.

Use two or more people to lift and

transport the product.Avoid personal injury.

Do not install the product where it will

be exposed to sea wind (salt spray) directly.

It may cause corrosion on the product.

Corrosion, particularly on the condenser and

evaporator fins, could cause product malfunction

or inefficient operation.

Operational

Do not expose the skin directly to cool airfor long periods of time. (Do not sit in the draft).This could be harmful to your health.

Do not use the product for special

purposes, such as preserving foods, works of

art, etc. It is a consumer air conditioner, not a

precision refrigerant system.There is risk of damage or loss of property.

Do not block the inlet or outlet of air flow.

It may cause product failure.

Use a soft cloth to clean. Do not use harsh

detergents, solvents, etc.There is risk of fire, electric shock, or damage to the

plastic parts of the product.Do not touch the metal parts of the product

when removing the air filter. They are very sharp.There is risk of personal injury.

Do not step on or put anything on the

product. (outdoor units)There is risk of personal injury and failure of product.

Always insert the filter securely. Clean the

filter every two weeks or more often if necessary.A dirty filter reduces the efficiency of the air

conditioner and could cause product malfunction or

damage.Do not insert hands or other object through

air inlet or outlet while the product is operated.There are sharp and moving parts that could

cause personal injury.Do not drink the water drained from the

product.It is not sanitary. Could cause serious health issues.

Use a firm stool or ladder when cleaning or

maintaining the product.Be careful and avoid personal injury.

Replace all the batteries in the remotecontrol with new ones of the same type. Do not

mix old and new batteries or different types of

batteries.There is risk of fire or explosion.

Do not recharge or disassemble the

batteries. Do not dispose of batteries in a fire.They may burn of explode.

If the liquid from the batteries gets ontoyour skin or clothes, wash it well with cleanwater. Do not use the remote of the batteries that

has leaked.The chemical in batteries could cause burns or otherhealth hazards.


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2. Features

Indoor unitOperation by remote controllerSensing by room temperature

Room temperature sensor (T1)Indoor Coil temperature sensor (T2)

Room temperature controlMaintain the room temperature in accordance with the

setting temperature.Anti-freezing control in cooling

Prevent the water being frozen on evaporator by sensing

the evaporator pipe temperature in cooling modeTime Delay Safety control

Restarting is for approx. 3 minutesIndoor fan speed control

Turbo wind, high, med, low, breezeTwo-direction air vane

The unit will decide the louver direction according to

operation mode.Sleep mode auto control

The fan is turned to low speed (cooling/heating)The unit will turn off at the seventh hour.

Independent dehumidificationThe function is usually used in rainy days in

springtime or damp areas.

Air flow Direction controlThe louver can be set at the desired position or

swing up and down automaticallyAuto mode

The mode can be change by the room temperature.Temp. Compensation

Work voltage (160V-253V)

Self-diag. function

Anti-cold functionPrevent the cold wind at

the beginning of unit start.Auto defrost

Auto-restart functionWhen the power supply is interrupted

and then restored, the air conditioner

automatically restores the previous

function setting.Flexible wiring connection

3


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Outdoor unit

Power delay controlThe unit has 3 mins delay between continuously ON/OFF operations.

Low noise air flow systemBird tail propeller fan makes the outdoor unit run more quietly.

Hydrophilic aluminium finThe hydrophilic fin can improve the heating efficiency at operation mode.

4 way valve controlIt is only operated in the heating operation mode except defrosting operation.

Anti-rust cabinetMade from electrolytic zinc steel sheet and anti-rust coated components

Valve protection coverIt protects the valves and prevents water from dripping.

Discharge pipe temperature protect

Driving heating at -15C

4


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C

3. Dimension

3.1 Indoor Unit

B A

Model Name A (mm) B (mm) C (mm)iDWMG26 790 195 265

iDWMG35 790 195 265

iDWMG50 920 225 295

iDWMG70

1250mm230mm

325mm

5


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3.2 Outdoor Unit

MODEL NAME A(mm) B(mm) C(mm) D(mm) E(mm)

iDWMZ26 590 530 760 290 315

iDWMZ35 590 530 760 290 315iDWMZ50 695 560 845 335 360

iDWMZ70 860 590 895 330 355

Gas side Flare9.53 iDWM2612.7 iDWM3512.7 iDWM5016.0 iDWM70

Liquid side Flare6.35 iDWM266.35 iDWM356.35 iDWM509.53 iDWM70

A

DE

Service Port

B

C

6


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iDWM26 iDWM35 iDWM50 iDWM70

iDWMG26 iDWMG35 iDWMG50 iDWMG70

iDWMZ26 iDWMZ35 iDWMZ50 iDWMZ70

Ph-V-Hz 1,220-240V~,50Hz 1, 220-240V~, 50Hz 1,220-240V~,50Hz 1,220-240V~,50Hz

Rated Capacity(Min~Max) kW 2.55(0.90~3.25) 3.40(1.10~4.30) 4.95(1.55~6.74) 7.00(3.50-7.30)

Rated Input (Min~Max) kW 0.68(0.30~1.10) 0.99(0.40~1.48) 1.60(0.40~2.30) 2.25(0.84-2.35)

Rated current A 3.0 4.4 7.2 10.0

Rated EER 3.75 3.43 3.09 3.1

Rated Capacity (Min~Max) kW 2.93(0.96~3.60) 3.81(1.17~4.45) 4.85(1.50~6.45) 7.20(3.20-7.50)

Rated Input (Min~Max) kW 0.68(0.31~1.15) 0.99(0.39~1.46) 1.55(0.36~2.10) 2.18(0.72-2.72)

Rated current A 3.0 4.4 6.5 9.4

Rated COP 4.30 3.85 3.13 3.3

l/h 0.8 1.2 1.5 2.6

A 8.00 8.50 15.00 15.00

A 3.20 4.50 10.20 15.00

Model DA108X1C-20FZ3 DA108X1C-20FZ3 C-6RVN93H0N C-6RZ146H1A

Type Rotary Rotary Rotary Rotary

Brand TOSHIBA TOSHIBA SANYO SANYO

Capacity kW 3.2 3.2 4.2 6.4

Input kW 0.855 0.855 1.010 1.630

Rated current(RLA) A 5.30 5.30 6.23 8.38

Locked rotor Amp(LRA) A 8 8 13.26 12.50

Thermal protector CS-74 CS-74 1NT11L-3979 1NT11L-3979

Capacitor uF No No No No

Refrigerant oil ml 480 480 400 FV50BX / 350

Model RPG20D RPG20D RPG28D YDK50-4E

Brand Welling Welling Welling Welling

Input W 43 43 47 67

Capacitor uF 1.5 1.5 1.5 3.0

Speed(hi/mi/lo) r/min 1250/1050/900 1250/1050/900 1180/1100/950 1250/1120/1030

a.Number of rows 2 2 2 2

b.Tube pitch(a)x row pitch(b) mm 21x13.37 2113.37 21x13.37 21x13.37

c.Fin spacing mm 1.3 1.3 1.3 1.3

d.Fin type (code) Hydrophi lic aluminium Hydrophil ic aluminium Hydrophilic aluminium Hydrophilic aluminium

e.Tube outside dia.and type mm 7, innergroove tube 7, innergroove tube 7, innergroove tube 7, innergroove tube

f.Coil length x height x width mm 637*294*26.74 637x294x26.74 755x210x26.74+725x126x26.74 965x420x26.74

g.Number of circuits 2 2 4 6

l/s 164/130/90 171/135/90 222/194/167 322/286/250

dB(A) 40/37/33 43/40/36 44/40/37 51/48/45

Dimension (W*D*H) mm 790x195x265 790x195x265 920x225x292 1250230x325

Packing (W*D*H) mm 875x285x375 875x285x375 1015x295x368 1345335x430

Net/Gross weight Kg 9/11 9/11 11.5/15 17/21

Model YDK24-6G YDK24-6G YDK53-6F YDK53-6N

Brand Welling Welling Welling Welling

Input W 59 59 126/106 144/102

Capacitor uF 2.5 2.5 2.5 2.5

Speed r/min 800/550 800/550 760/600 780/630

a.Number of rows 2 2 2 2

b.Tube pitch(a)x row pitch(b) mm 22x19.05 22x19.05 25.4x22 21x13.37

c.Fin spacing mm 1.4 1.4 1.6 1.3

d.Fin type (code) Hydrophi lic aluminium Hydrophil ic aluminium Hydrophilic aluminium Hydrophilic aluminium

e.Tube outside dia.and type mm 7.94, innergroove tube 7.94, innergroove tube 9.52, innergroove tube 7.94 innergroove tube

f.Coil length x height x width mm 656x550x38.1 656x550x38.1 766x660x44 965x420x26.74

g.Number of circuits 4 4 4 6

l/s 458/294 458/294 694/555 833/694

dB(A) 52/50 53/51 56/54 60/54

Dimension(W*D*H) mm 760x285x590 760x285x590 845x335x695 895330x860

Packing (W*D*H) mm 887x355x645 887x355x645 965x395x755 1043395915

Net/Gross weight Kg 40.5/43 40.5/43 52/56 63.5/67.5

g 1100 1100 1700 2200

MPa 4.2/1.5 4.2/1.5 4.2/1.5 4.2/1.5

Liquid side/ Gas side mm(inch) 6.35/9.53 (1/4"/3/8") 6.35/12.7 (1/4"/1/2") 6.35/12.7 (1/4"/1/2") 9.53/16.0(3/8"/5/8")

Max. refrigerant pipe length m 15 15 15 25

Max. difference in level m 8 8 8 10

10A 10A 20A No plug

Electronic control Electronic control Electronic control Electronic control

17 ~ 30 17 ~ 30 17 ~ 30 17 ~ 30

-15 ~ 50 -15 ~ 50 -15 ~ 50 -15 ~ 50

m2 16-24 20-30 28 ~ 40 35~58

set 89/196/232 89/196/232 70/146/168 47/98/112

dB(A) 6163

66 71m 5 5 5 5Pre-Charged Length

Design pressure (Hi/Lo)

Refrigerant piping

Compressor

Starting current

Outdoor sound power level

Qtyper 20 /40 /40'HQ

Thermostat type

Operation temp

Ambient temp (Outdoor)

Indoor fan motor

Recommended application area

Outdoor coil

Outdoor unit

Plug type

Indoor air flow (Hi/Mi/Lo)

Indoor

Outdoor air flow (Hi/Lo)

Outdoor

Outdoor noise level (SPL @ 1 meter)

Refrigerant type R410A (Pre-charge)

Model

Moisture Removal

Indoor unit

Outdoor fan motor

Cooling

Heating

Power supply

Indoor coil

Indoor noise level (Hi/Mi/Lo) @ 1 meter (SPL)

Max. current

7

The above design and specications are subject to change without prior notice for product development.


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5. Refrigerant cycle diagram

8


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6. Wiring diagram6.1 Indoor Unit

iDWMG26, iDWMG35

iDWMG50

9


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iDWMG70

10


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6.2 Outdoor UnitiDWMZ26, iDWMZ35

iDWMZ50

11


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iDWMZ70

12


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7. Installation details

7.1 Wrench torque sheet for installation

Outside diameter Torquemm inch Kgf.m

6.35 1/4 1.8

9.52 3/8 4.2 12.7 1/2 5.5

16.0 5/8 6.6

7.2 Minimum Electrical Requirements

Conductor sizes are based on using TYPE D Circuit Breaker Protection and maximum cable length shall not exceed 15m.Incoming Power supply

Model Maximum run current

(A)

Rated run current

(A)Circuit Breaker size (A) Minimum Conductor size

mm2

iDWM26 8 3 10 1.0

iDWM35 8.5 4.4 10 1.0

iDWM50 15 7.2 20 2.5

iDWM70 15 10 25 2.5Interconnecting Cables Requirements

Models Inter-connecting supply to Minimum conductor size mm Remarks

iDWM26 Compressor+Neutral+Earth 2x1.0 mm+ Earth Power supply to indoor

first4 way valve + Outdoor fan 2x1.0 mm





iDWM70 Indoor Unit 2x1.0 mm2

+ Earth Power supply to outdoorfirst4 way valve + Outdoor fan 2x1.0 mm

NOTE: The supply voltage should be consistent with the rated voltage of the air conditioner

7.3 Pipe Length and the elevationModel Pipe size (mm) Pre-charged

length (m)Max.

ElevationB(m)

Max. LengthA(m)

AdditionalRefrigerant (g/m)Gas Liquid

iDMW26 9.53 (3/8) 6.35 (1/4) 5 8 15 20iDWM35 12.7 (1/2) 6.35 (1/4) 5 8 15 20

iDWM50 12.7 (1/2) 6.35 (1/4) 5 8 15 20iDWM70 16.0 (5/8) 9.53 (3/8) 5 10 25 40

Caution:

Capacity is based on standard length and maximum allowance length is base of reliability.

Oil trap should be installed per 5-7 meters.

7.4 Air purging of the piping and indoor unit

Required tools:

Hexagonal wrench; adjustable wrench; torque wrenches, wrench to hold the joints and gas leak detector.

13

Signal Wire

Signal Wire

Signal Wire

Signal Wire 1

1

1

1


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Note: The air in the indoor unit and in the piping must be purged. If air remains in the refrigeration piping, it will affect

thecompressor, reduces the cooling capacity, and could lead to a malfunction of unit.Be sure, using a torque wrench to tighten the service port cap (after using the service port), so that it prevents the

gas leakage from the refrigeration cycle.

Procedure1) Recheck the piping connections.

2) Open the valve stem of the 2-way valve

counter clockwise approximately 90, wait 10

seconds, and then set it to closed position.

Be sure to use a hexagonal wrench to operate

the valve stem.

3) Check for gas leakage.

Check the flare connection for gas leakage

4) Purge the air from the system.

Set the 2-way valve to the open position and

remove the cap from the 3-way valves

service port.

Using the hexagonal wrench to press the valve

core pin, discharge for three seconds and then

wait for one minute.

5) Use torque wrench to tighten the service port

cap to a torque of 1.8 kgf.m. (18N.m)

6) Set the 3-way valve to the opened position.

7) Mounted the valve stem nuts to the 2-way and

3-way valves.8) Check for gas leakage.

At this time, especially check for gas leakage from

the 2-way and 3-way stem nuts, and from the

service port.Caution:

If gas leakage is discovered in step (3) above, take the

following measures.If the leaks stop when the piping connections are

tightened further, continue working from step (4).If the gas leaks do not stop when the connections are

retightened, repair the location of the leak, discharge all of

the gas through the service port, and then recharge with

the specified amount of gas from a gas cylinder.

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7.5 Pumping down (Re-installation)

Procedure1) Confirm that both the 2-way and 3-way valves are set to the opened position.

Remove the valve stem caps and confirm that the valve stems are in the opened

position. Be sure to use a hexagonal wrench to operate the valve stems.

2) Operate the unit for 10 to 15 minutes.

3) Stop operation and wait for 3 minutes, then connect the charge set to the service port of the 3-way valve.

Connect the charge hose with the push pin to the gas service port.4) Air purging of the charge hose.

Open the low-pressure valve on the charge set slightly to purge air from the charge hose.

5) Set the 2-way valve to the close position.

6) Operate the air conditioner at the cooling cycle and stop it when the gauge indicates 0.1MPa.

7) Immediately set the 3-way valve to the closed position.

Do this quickly so that the gauge ends up indicating 0.3 to 0.5Mpa.

Disconnect the charge set, and amount the 2-way and 3-way valves stem nuts and service port caps. Use a

torque wrench to tighten the service port cap to a torque of 1.8 kgf.m. Be sure to check for gas leakage.

Close

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7.6 Re-air purging (Re-installation)

Procedure:1) Confirm that both the 2-way and 3-way valves are set to the closed position.

2) Connect the charge set and a charging cylinder to the service port of the 3-way

valve. Leave the valve on the charging cylinder closed.

3) Air purging.

Open the valves on the charging cylinder and the charge set. Purge the air by loosening the flare nut on the 2-

way valve approximately 45 for 3 seconds then closing it for 1 minute; repeat 3 times.

After purging the air, use a torque wrench to tighten the flare nut to on the 2-way valve.

4) Check the gas leakage.

Check the flare connections for gas leakage.

5) Discharge the refrigerant.

Close the valve on the charging cylinder and discharge the refrigerant until the gauge indicates 0.3 to 0.5 MPa.

6) Disconnect the charge set and the charging cylinder, and set the 2-way and 3-way valves to the open

position. Be sure to use a hexagonal wrench to operate the valve stems.

7) Mount the valve stems nuts and the service port cap.

Be sure to use a torque wrench to tighten the service port cap to a torque 18N.m. Be sure to check the gas

leakage.

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7.7 Balance refrigerant of the 2-way, 3-way valves

Procedure:1) Confirm that both the 2-way and 3-way valves are set to the open position.

2) Connect the charge set to the 3-way valves service

port. Leave the valve on the charge set closed.

Connect the charge hose with the push pin to the service port.

3) Open the valves (Low side) on the charge set and discharge the refrigerant until the gauge indicates 0.05

to 0.1MPa.

If there is no air in the refrigeration cycle [the pressure when the air conditioner is not running is higher than

0.1MPa], discharge the refrigerant until the gauge indicates 0.05 to 0.1 MPa. If this is the case, it will not be

necessary to apply an evacuation.

Discharge the refrigeration gradually; if it is discharged too suddenly, the refrigeration oil will be discharged.

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7.8 Evacuation

Procedure:1) Connect the vacuum pump to the charge sets centre hose.

2) Evacuation for approximately one hour.

Confirm that the gauge needle has moved toward -0.1 MPa (-76 cmHg) [vacuum of 4 mmHg or less].

3) Close the valve (Low side) on the charge set, turn off the vacuum pump, and confirm that the gauge

needle does not move (approximately 5 minutes after turning off the vacuum pump).

4) Disconnect the charge hose from the vacuum pump.

Vacuum pump oil, if the vacuum pump oil becomes dirty or depleted, replenish as needed.

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7.9 Gas charging

Procedure:1) Connect the charge hose to the charging cylinder.

Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of the cylinder.

2) Purge the air from the charge hose.

Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air

(be careful of the liquid refrigerant).

3) Open the valves (Low side) on the charge set and charge the system with liquid refrigerant.

If the system cannot be charged with the specified amount of refrigerant, it can be charged with a little at a time

(approximately 150g each time) while operating the air conditioner in the cooling cycle; however, one time is not

sufficient, wait approximately 1 minute and then repeat the procedure.(pumping down-pin).

4) Immediately disconnect the charge hose from the 3-way valves service port. Stopping partway will allow the

refrigerant to be discharged.

If the system has been charged with liquid refrigerant while operating the air conditioner, turn off the air

conditioner before disconnecting the hose.

5) Mount the valve stem caps and the service port

Use torque wrench to tighten the service port cap to a torque of 18N.m. Be sure to check for gas leakage.

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8. Capacity Table8.1 iDWM26

SUMMER OUTDOOR TEMPERATURE DRY

Indoor

Conditions25C 30C 35C 40C 45C 50C

21C D15C W

Total capacity W 2393 2275 2117 1944 1785 1665

Sensitive capacity W 1753 1700 1626 1543 1464 1401

Input W. 564 612 660 708 757 805

24C D17C W

Total capacity W 2565 2451 2312 2165 2023 1901


Input W. 564 617 669 721 774 826

27C D19C W

Total capacity W 2745 2694 2549 2351 2140 1955


Input W. 575 629 683 736 790 844

32C D23C W

Total capacity W 2797 2841 2801 2704 2578 2451


Input W. 570 633 696 759 821 884

WINTER OUTDOOR CONDITIONS

Indoor

Conditions

12C D11C W

7C D6C W

4C D3C W

0C D-1C W

-4C D-6C W

-7C D-8C W

15C

Capacity W 3435 3057 2703 1747 1461 1408

Input W. 740 660 592 510 474 500

18C

Capacity W 3235 2901 2615 1661 1533 1355

Input W. 757 660 602 543 524 549

20C

Capacity W 3218 2930 2592 1578 1418 1385

Input W. 778 684 617 543 514 541

22C

Capacity W 2992 2850 2473 1339 1433 1337

Input W. 719 679 618 541 518 567

20


24/60

8.2 iDWM35


Indoor


21C D15C W

Total capacity W 3300 3137 2919 2681 2461 2296


Input W. 804 873 942 1010 1079 1148

24C D17C W

Total capacity W 3537 3379 3188 2985 2789 2622


Input W. 805 879 954 1029 1103 1178

27C D19C W

Total capacity W 3785 3715 3515 3242 2950 2696


Input W. 821 897 974 1050 1127 1204

32C D23C W

Total capacity W 3856 3918 3863 3729 3555 3379


Input W. 813 902 992 1082 1172 1262


Indoor

Conditions

12C D11C W

7C D6C W

4C D3C W

0C D -1C W

-4C D -6C W

-7C D -8C W

15C

Capacity W 4467 3975 3515 2272 1899 1830

Input W. 1077 962 862 743 690 728

18C

Capacity W 4207 3772 3401 2160 1994 1761

Input W. 1103 961 877 791 763 800

20C Capacity W 4184 3810 3371 2051 1845 1801

Input W. 1132 996 899 791 748 787

22C

Capacity W 3890 3706 3216 1742 1863 1739

Input W. 1047 989 900 788 754 825

21


25/60

8.3 iDWM50


Indoor

Conditions

12C D11C W

7C D6C W

4C D3C W

0C D-1C W

-4C D-6C W

-7C D-8C W

15CCapacity W 5686 5060 4474 2892 2418 2330

Input W. 1686 1505 1349 1163 1081 1140

18C

Capacity W 5355 4802 4329 2749 2538 2242

Input W. 1726 1505 1373 1238 1195 1252

20CCapacity W 5326 4850 4291 2611 2348 2292

Input W. 1773 1559 1407 1238 1172 1232

22CCapacity W 4952 4717 4094 2217 2371 2214

Input W. 1640 1548 1410 1234 1180 1292


Indoor


21C D15C W

Total capacity W 4645 4417 4109 3774 3465 3232


Input W. 1326 1440 1553 1667 1780 1894

24C D17C W

Total capacity W 4979 4757 4488 4202 3927 3691


Input W. 1328 1451 1574 1697 1820 1943

27C D19C W

Total capacity W 5329 5230 4948 4564 4153 3795


Input W. 1354 1480 1606 1733 1859 1985

32C D23C W

Total capacity W 5429 5516 5438 5250 5005 4757


Input W. 1340 1488 1637 1785 1933 2081

22


26/60

8.4 iDWM70

Summer Outdoor Temperature Day

Indoor

Conditions 25C 30C 35C 40C 45C 50C

21C D15C W

Total capacity W 6710 6380 5935 5452 5005 4669


Input W. 1915 2078 2242 2406 2570 2734

24C D17C W

Total capacity W 7193 6871 6483 6070 5672 5331


Input W. 1917 2094 2272 2450 2628 2805

27C D19C W

Total capacity W 7697 7554 7148 6592 5999 5482


Input W. 1954 2137 2319 2501 2684 2866

32C D23C W

Total capacity W 7841 7967 7855 7583 7229 6871


Input W. 1935 2149 2363 2577 2791 3005


IndoorConditions

12C D11C W

7C D6C W

4C D3C W

0C D-1C W

-4C D-6C W

-7C D-8C W

15C

Capacity W 8864 7887 6974 4509 3769 3632

Input W. 2492 2224 1994 1718 1596 1684

18C

Capacity W 8347 7485 6748 4285 3956 3495

Input W. 2550 2224 2028 1829 1766 1850

20C

Capacity W 8303 7560 6689 4070 3660 3573

Input kW. 2619 2304 2079 1829 1731 1821

22C

Capacity W 7719 7353 6382 3456 3696 3451

Input kW. 2422 2287 2082 1823 1743 1908

23


27/60

9. Electronic function9.1 Abbreviation

T1: Room temperature sensorT2: Indoor Coil temperature sensorT3: Outdoor coil temperature sensorT4: Outdoor ambient temperature sensor

Te: CompressorDischarge temperature sensor

9.2 Display function9.2.1 Icon explanation on indoor display board for models iDWMG26, iDWMG35, iDWMG50.

iDWMG26, iDWMG35, iDWMG50

1) AUTO indicator

This indicator illuminates when the air conditioner is in AUTO operation.

2) TIMER indicator

This indicator illuminates when TIMER is set ON/OFF.

3) DEF. Indicator

This indicator illuminates when the air conditioner starts defrosting automatically or when the warm air

control feature is activated in heating mode.4) TEMPERATURE indicator

Displays the temperature settings. When changing the setting temperature, this indicator begins to flash and

stops 20 seconds later.

Displays the room temperature when the air conditioner is in FAN only operation, and the range of that is

0~50C.

No display when the unit stops.

Displays the malfunction code or protection code if the unit malfunctions.5) FREQUENCY indicator

This indicator appears only when the compressor is in operation and indicates the current operating

frequency. This indicator will flash when the power is on and the unit is not in operation.

24


28/60

9.2.2 Icon explanation on indoor display board for model iDWMG70

iDWMG70

1) POWER Indicator:

The indicator flashes once every second after power is on and illuminates when the air conditioner is in operation.

2) TIMER indicator:

The indicator illuminates when TIMER is set ON/OFF.

3) DEFROST indicator:

This indicator illuminates when the air conditioner starts defrosting automatically or when the warm air control feature is

activated in heating operation.

4) AUTO indicator:

This indicator illuminates when the air conditioner is in AUTO operation.

5) DIGITAL DISPLAY:

Displays the temperature settings. When changing the setting temperature, this indicator begins to flash, and stops

20 seconds later.

Displays the room temperature when the air conditioner is in FAN only operation.

Displays the malfunction code or protection code.

No display when the unit stops.

9.3 Protection

9.3.1 Three Minutes Delay at restart for compressor.

9.3.2 Temperature protection of compressor top.

25


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T1-24

If the temperature of compressor top is too high (higher than 115C and the Over-load Protector is cut, the unit

stops. When the Over-load Protector restores and closes (lower than 100C), the compressor will restart) in this

case the compressor is restricted by Three Minutes Delay protection.

9.3.3 Inverter module Protection

Inverter module Protection itself has a protection function against current, voltage and temperature. If these

protections happened, the corresponding code will display on indoor unit LED.

9.3.4 Sensor protection at open circuit and breaking disconnection

9.3.5 Fan Speed is out of control.

When Indoor Fan Speed is too low (lower than 300RPM for 60 seconds), the unit stops and LED displays

failure information and cant return to normal operation automatically.

9.3.6 Cross Zero signal error warning.

If there are 20 alternations of Cross Zero signals are incorrect, the unit stops and LED displays failure

information. After resuming, the motor rotates again. The spacing of Cross Zero signal is 6-13ms.

9.3.7 Indoor fan delayed at start function9.3.8 For all modes, when the units are turned on, the indoor fan can operate 10 seconds after the action of louver.

9.3.9 Compressor preheating function.

1) Preheating permitting condition:

If T4 (outdoor ambient temperature)


30/60

T=(roomt

emp)(settingTemp)

3.53.0-0.5-1.0

AB

H

When the machine is running and T(=room temp. setting temp.) changes, the frequency of compressor willrise or descend a grade (7 minutes after starting).After start, if T stays in a zone for 3 minutes, the frequency will change as follows:Zone A : Current frequency rises a grade till the maximum grade.Zone B: Elevate or keep or descend the frequency of compressor.Zone H: Compressor stops after running at the minimum frequency for 60 minutes or T is less than -2C.

9.5.2 Indoor heat exchanger anti-freezing function.If T2 is lower than 0C, the compressor stops and resumes when T2>5C.

9.5.3 Outdoor unit current control in cooling mode(refer to the parameter table)

outdoorunitcurrent I3COOL

I2COOLI1COOL

comp. pause

freq. descends if curr. rises;

freq. remains if curr. descendsrunning normally

Remark:Model I1COOL I2COOL I3COOLiDWM26 4.5 A 5.5 A 6.5 AiDWM50 5.2 A 6.4 A 7.5 AiDWM50 9.5A 10.5A 13A

iDWM70 11A 12A 13A

9.5.4 Rating capacity test function1) Set the indoor unit with remote controller as: high fan, 17 in cooling mode, then press TURBO button on

controller 6 times or more within 10 seconds(make sure indoor unit receives these signals), the machine

will turn into rating capacity test mode, the buzzer will make a di sound for 2 seconds continuously. Also,

indoor fan will change to rating speed; the frequency of compressor will be fixed as rating value. Any

condition of above is not satisfied, the machine cannot be turned into rating capacity test mode.2) The machine will quit from the rating capacity test mode if running for 5 hours or changing fan speed

or setting temperature.

9.5.5 Turbo function(press the TURBO button on remote controller)

1) Elevate current frequency to a higher grade.

2) Indoor fan turns to turbo speed.

3) After running for 30 minutes the machine will turn back to previous setting mode.

9.5.6 Indoor fan operation rule.

27


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1) In cooling mode, indoor fan runs all the time and the speed can be selected as high, medium, low and auto.2) Auto fan in cooling mode acts as follow:

C

4.03.01.51.0

9.5.7 Condenser high temperature protection function(in cooling and drying mode)If T3>60C for 5 seconds, compressor will stop immediately, and the machine will not resume until T3


32/60

9.7 Heating mode9.7.1 Indoor fan action:

1) Anti-cold-wind function.

Evaporatortemp

44383734332417

Setting fan speedLow fan

BreezeSuper breezeFan stop

2) If the compressor stops caused by room temperature rising, indoor fan will be forced to run 127 seconds

with breeze. During this period, anti-cold-wind is disabled. After this, anti-cold wind function is available.

3) If the machine runs in rating capacity test mode, indoor fan runs with rating speed, and anti-cold-wind is

disabled.

9.7.2 Indoor fan speed can be set as high, medium, low or auto grade, but anti-cold-wind function is

preferential. Auto fan action in heating mode.

T=(roomt

emp)

(settingTemp)

2.52.01.51.0

lowmedium

high9.7.3 After starting, the operation frequency of compressor submits to following rule:

Th=(roomt

emp)(settingTemp)Tcon

5.04.51.00.5

Remark: Tcon can be changed among 0, -2, 4C, the default is 0C1) When the machine runs, if Th stays in a zone for 3 minutes, action of frequency is as follows:

Zone A: Elevate current frequency one grade, and not stop until the maximum grade.

Zone B: Elevate or keep or descend current frequency.Zone H: Compressor stops after running with F1 (min. Frequency) for 60 minutes or when Th>6C.

C

C

C

H

B

A

29


33/60

1) Temperature difference (Tcon) choice (Heating mode)

After power on, the machine will self-diagnose and if there aren't any J1 and J2 jump wires (see indoor unit wiring diagram),

Tcon will be set as 0C. It is recommended to keep J1 and J2 at factory settings.Changing these settings should be

carried out only by a qualified technician.

J1 On On Off Off

J2 On Off On Off

Tcon (C) 0 -4 -2 0

9.7.4 Outdoor unit current control in heating mode.

current

I3HEAT

unit

I2HEAT

outdoor

I1HEATRemark:

Model I1HEAT I2 HEAT I3 HEAT

iDWM26 5.2 A 6.4 A 7.5 A

iDWM35 5.2 A 6.4 A 7.5 AiDWM50 9.5A 10.5A 13A

iDWM70 11A 12A 13A

9.7.5 Indoor heat exchanger high temperature protection.

If T2>60C, the compressor will stop and not resume until T20C,

When the units are running, if any one of the following two items are satisfied the units start defrosting:

a) The unit runs with T3


34/60

9.7.7 Defrosting action.F8

compressor onoff

4-way valveonoff

outdoor fan onoff

indoor fan onoff

indoor fan breeze 10s60s

70sno longer than 10 minutes 30s

9.7.8 Rating capacity test function.1) Set the indoor unit with remote controller as: high fan, 30C in heating mode, then press TURBO button on

controller 6 times or more within 10 seconds(make sure indoor unit receives these signals), the machine

will turn into rating capacity test mode, the buzzer will make a di sound for 2 seconds continuously. Also,

indoor fan will change to rating speed; the frequency of compressor will be fixed as rating value. Any

condition of above is not satisfied, the machine cannot be turned into rating capacity test mode.2) The machine will quit from the rating capacity test mode if running for 5 hours or changing fan speed or

setting temperature.

9.7.9 Turbo function in heating mode. (press the TURBO button on remote controller)

1) Elevate current frequency (excluding F8) to a higher grade. If indoor fan is in low speed or pause caused

by defrosting or anti-cold-wind function, frequency of compressor will not be elevated one grade until these

limit has been released.

2) Indoor fan changes to turbo speed and anti-cold-wind function is valid.

3) After running for 30 minutes the machine will turn back to previous setting mode.

9.8 Auto Mode Function

9.8.1 This mode can be chosen with remote controller and the setting temperature can be changed between 17~30 C.In auto mode, the machine will choose cooling, heating or fan-only mode according to T (T =T1-Ts).

T=T1-Ts Running modeT>1C Cooling

-1C T1C Fan-onlyT


35/60

9.8.4 If the setting temperature is modified, the machine will rechoose running function.9.9 Forced operation function9.9.1 Forced cooling and auto function can becarried out with a touch button on the indoor unit. In these two modes,

the machine can be changed by remote controller to any other mode at any moment.

9.9.2 When the machine is off, pressing the touch button will carry the machine to forced auto mode, after this, if

pressing the button once again within 5 seconds, the machine will turn into forced cooling mode. In forced auto,

forced cooling or any other operation mode, pressing touch button will turn off the machine. In forced operation,

remote control is available.

9.9.3 In forced operation mode, all general protections are available.

9.9.4 In forced cooling mode, after running for 30 minutes the machine will turn to normal auto mode which has a

setting temperature of 24C.

9.9.5 The action of forced auto mode is the same as normal auto mode which has a temperature of 24C.

9.10 Action of 4-way valveIn heating, fan-only, standby or turning off mode 4-way valve is off, while in cooling or drying mode 4-way valve

is on. If the machine changes operation mode from cooling or drying mode to some other mode, 4-way valve will

be delayed off 2 minutes after compressor stop. For defrosting, please refer to the section defrosting mode.

9.11 Two speeds outdoor fan function9.11.1 Outdoor fan starts at the same time with compressor, but stops 30 seconds later after compressor stop.

9.11.2 Outdoor fan action in heating mode (including heating in auto mode).

outdoortemperature

1715

lowhigh

outdoorfanspeed

outdoortemperature

2220

highlow

outdoorfanspeed

Outdoor fan action in heating mode

(including heating in auto mode). Outdoor fan action in cooling & drying mode(including cooling in auto & forced mode).9.11.3 Outdoor fan action in cooling & drying mode (including cooling in auto & forced mode).

Please refer to the pic. above.9.12 Timer function9.12.1 Timing range is 24 hours, and the minimum resolution is 15 minutes.

9.12.2 Timer on. After turning off, the machine will turn on automatically when reaching the setting time.

9.12.3 Timer off. After turning on, the machine will turn off automatically when reaching the setting time.

9.12.4 Timer on/off. After turning off, the machine will turn on automatically when reaching the setting on time, and

then turn off automatically when reaching the setting off time.

9.12.5 Timer off/on. After turning on, the machine will turn off automatically when reaching the setting off time, and

then turn on automatically when reaching the setting on time.

9.12.6 The tolerance of timer is 1 minute per hour.

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9.13 Sleep function mode9.13.1 Operation time in sleep mode is 7 hours. After 7 hours the machine quits this mode and turns off.

9.13.2 In cooling, heating or auto mode sleep function is available.

9.13.3 Operation process in sleep mode is as follow:

1) After pressing ECONOMIC or SLEEP button on controller, the machine will turn into sleep mode.

2) When cooling the setting temperature rises by 1C (be lower than 30C) every one hour; 2 hours later the

rising stops and indoor fan is fixed as low speed.

3) When heating, the setting temperature descends by 1C (be lower than 30C) every one hour; 2 hours later

the descending stops and indoor fan is fixed as low speed, and anti-cold wind is available.

9.13.4 If user uses timer on function in sleep mode, sleep function will pause and not resume until reaches the setting

on time.

9.13.5 When user uses timer off function in sleep mode (or sleep function in timer off mode), if the timing time is less

than 7 hours, sleep function will be cancelled when reaching the setting time. If the timing time is more than 7

hours, the machine will not stop until reaches the setting off time in sleep mode.

9.14 Auto-Restart functionThe indoor unit is equipped with auto-restart function, which is carried out through an auto-restart module. In case

of a sudden power failure, the module restores the setting conditions before the power failure. The unit will

resume the previous operation setting (not including Swing function) automatically after 3 minutes when power

returns.

33


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10. TroubleshootingSafetyBecause there are capacitors in PCB and relative circuit in outdoor unit, even ifthe power supply is shut down,

electricity power still is kept in capacitors.Do not forget to discharge the electricity power in capacitor.

Electrolytic Capacitors(HIGH VOLTAGE! CAUTION!)

Bulb (25-40W)

Discharge

34


38/60

10.1 Indoor Unit Error DisplayDisplay LED STATUSE0 EEPROM parameter errorE1

Indoor / outdoor units communication protection

E2 Zero-crossing signal errorE3 Fan speed out of controlE5 Open or short circuit of outdoor temperature sensor (T4)E6 Open or short circuit of room (T1) or evaporator temperature sensor (T2)P0 Outdoor PCB protectionP1 Over voltage or too low voltage protectionP2 Temperature protection of compressor top.P4 Inverter compressor drive error

Note:E2 & E3 is not applicable for the model iDWM70.E4 & P3: Reserved function

35


39/60

Reconnect and test again

Correct the connectionReplace outdoor PCB

Be sure the power supply is good

and correct the connection

Indoor PCB is defective. Replace

the indoor PCB.

10.2 Diagnosis and Solution10.2.1 E0 (EEPROM parameter error) error diagnosis and solution

Circuit or software error on indoor PCB Replace indoor PCB

10.2.2 E1 (indoor / outdoor units communication protection) error diagnosis and solutionDisconnect the power supply, after 1 minute,

connect the power supply, turn on the unit

with remote controllerDoes the unit work normally?

NOCheck the wiring between

indoor and outdoor unit. Is

the connection of L, N, S

and GND good?Is the GND connection on

outdoor PCB good?Yes

Is the LED4(red) on

outdoor PCB bright and

LED1(yellow) blinking?No

The power supply for outdoor

PCB is fail. Check the wiring

on outdoor PCB comparing

with wiring plate. Is the

connection good?No

10.2.3 E2 (zero-crossing signal error) diagnosis and solutionIs power supply and

connection of

connectors good?YES

NO

Yes

Yes

NO

Replace indoor PCB

and repower on. Is

the failure cleared?

Replace indoor PCB

36


40/60

10.2.4 E3 (indoor fan speed out of control) diagnosis and solutionIs the indoor fan motor

connector and

connection good?YES

Is voltage being applied to

the fan motor?(range 90v-160v between

mid pin and N on CN1NO

NO Repair the connector andreconnect

YES Indoor PCB is defective.Replace the indoor PCB.

Replace the indoor

fan motor

10.2.5 E5 (Open or short circuit of outdoor temperature sensor(T4)) diagnosis and solution.Is the outdoor temperature

sensor(T4) connector and

connection good?YES

Replace the sensor(T4) and

check if E5 display again?

NO Repair the connector andreconnect

YESReplace outdoor e-box

10.2.6 E6 (open or short circuit of room (T1) or evaporator temperature sensor(T2)) diagnosis and solution.Is the indoor temperature (T1)and evaporator sensor(T2) NO Repair the connector andconnector and connection

reconnectgood?

YESYESReplace the sensors (T1, T2)

Replace the indoor PCBand check if E6 display again?

10.2.7 P0 (Outdoor PCB protection) diagnosis and solution.Is all connections on

PCB and between PCB

and compressor good?YES

Replace the outdoor PCB

and then repower on. Is

the failure cleared?

NO Repair or correct theconnector or connection.

NOCheck the compressor

37


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10.2.8 P1 (over voltage or too low voltage protection) diagnosis and solution.Is the power supply good?

YESNO Be sure the power supply is

normal when using the unitsReplace the outdoor e-box.

10.2.9 P2 (temperature protection of compressor top) diagnosis and solution.NO NODoes compressor

operate? Is the connectiongood? Reconnect and retest.

YESIs refrigerant

circulation

volume normal?NO

Charge refrigerant

Is abnormality

the same after

gas charging?

YESNOIs protector

normal?YES

Check the outdoor

main PCB. Is there

some problem?YES

Replace the protector.

Replace the outdoor PCB.

NO

10.2.10 P4 (inverter compressor drive error) diagnosis and solution.Is the connection of

NOcompressor good? Is thewiring sequence right? Thevoltage range proper?

Check refrigerant system (such

as clogging of capillary, etc)

Reconnect and retryYES

Replace the outdoor E-box.

If the problem comes to NOagain, check coil resistance

Replace inverter compressorof inverter compressor, is it0.71ohm?

38


42/60

10.3 Key Part Checking

10.3.1 Compressor checking

Measure the resistance value of each winding by using the multi-meter.

Model: DA108X1C-20FZ3 (For Models iDWM25, iDWM35)

Position Resistance Value

Blue-Red 0.71 (20C)Blue-Black

Red-Blue

Model: C-6RVN93H0N (For Model iDWM50)Position Resistance Value


Red-Blue

Model: C-6RZ146H1A (For Model iDWM70)Position Resistance Value


Red-Blue

10.3.2 Outdoor Fan Motor


Model: YDK24-6G (For Model iDWM26, iDWM35)


Black-Red 435 (20C)

Blue-Red 213 (20C)

Yellow-Blue 138 (20C)

Model: YDK53-6F (For Model iDWM50)Position Resistance Value

Black-Red 87.8 (20C)Red-Yellow 141.5 (20C)

Model: YDK53-6N (For Model iDWM70)


Black-Red 113 (20C)

Red-Yellow 193 (20C)

10.3.3 Indoor Fan Motor


Model: RPG20D (For Model iDWM26, iDWM35)


Black-Red 415 8% (20C)

White-Black 290 8% (20C)

Model: RPG28D (For Model iDWM50)Position Resistance Value

Black-Red 220 8% (20C)

White-Black 330 8% (20C)

Model: YDK50-4E (For Model iDWM70)Position Resistance Value

Black-Red 206 (20C)

Red-Yellow 99 (20C)

iDWM26, 35, 50

iDWM70

39


43/60

10.3.4 Step Motor


Model: MP2835 (For Model iDWM26, iDWM35)

Model: MP2423B (For Model iDWM50)

Model: MP2423 (For Model iDWM70)

10.3.5 Temperature

Sensors.

Room temperature sensor (T1),

Indoor coil temperature sensor (T2),

Outdoor coil temperature sensor (T3),

Outdoor ambient temperature sensor (T4),

Compressor discharge temperature sensor (Te).

Measure the resistance value of each sensor by using the multi-meter.

Some frequently-used R-T data for T1, T2, T3 and T4 sensor:

Temperature (C) 5 10 15 20 25 30 40 50 60

Resistance Value (K) 26.9 20.7 16.1 12.6 10 8 5.2 3.5 2.4

Some frequently-used R-T data for Te sensor:

Temperature (C) 5 15 25 35 60 70 80 90 100Resistance Value(K)

141.6 88 56.1 36.6 13.8 9.7 6.9 5 3.7

K

C


Blue - Red

2007% (25)Pink - Orange

Pink - Yellow

Yellow - Red

9(10)

7(8)

1(2)

3(4)

5(6)

40


44/60

11.1ID

WMG26-INDOOR

SAG

ECODE-85620

1

2

3

6

8

5

7

9

12

17

18

13

14

15

16

19

20

21

25

23

24

28

26

27

22.

222.

1

22.

3

22.

4

22.

52

2.

6

22.

7

22

4

10

11

22.

8

41

11. Explosion Diagram


45/60

No.

SageCode

SageDescription

BOMCode

Qty

Remark

1

868024

FRNTPANLASYG26-35

201130490085

1

2

868027

AIRFILTRG26-35

201130490113

2

3

868010

AIRCLEANRG26-35-50

201130100212

1

4

868011

AIRCLNHLDG26-35-50

201130100217

1

5

868086

DISPBOXASSYG26-35

203332390256

1

6

868032

WINDCOVREPG26-35

201130490186

1

7

868028

SCREWC

APG26-35

201130490115

3

8

868046

FRAMEPNLASYG26-35

201132590058

1

9

868023

BAFFLEG26-35-50-70

201130490002

1

10

868029

AIROTFRMASYG26-35

201130490117

1

11

868075

LOUVERMOTORG26-35

202400200006

1

12

868007

DRAINHOSEG26-35-70

201130000011

1

13

868020

BREAKWATERG26-35-50

201130310350

1

14

868062

EVAPASSYG26

201532390080

1

15

868025

MOTORCOVG26-35

201130490106

1

16

868077

MOTORG26-35

202400300215

1

17

868082

BEARINGHOLDRG26-35

202730100201

1

18

868001

CROSSFLWF

ANG26-35

201100200100

1

19

868030

CHASSISG26-35

201130490118

1

20

868008

CNPIPECLPG26-35-50

201130100204

1

21

868054

INSTALLPLATEG26-35

201230390006

1

22

868085

ELECTRLBXINDRG26

203332390107

1

22.1

868031

EPARTBOXCOVG26-35

201130490184

1

22.2

868073

WIREJOINTG26-35-50

202301450119

1

22.3

868080

IDTSENG26-35-50-70

202432390005

1

22.4

868009

PWRCORDCLAMPG26-35

201130100209

1

22.5

868071

EVTSENG26-35-50-70

202301300080

1

22.6

868057

MNCTRLBRD+CHIPG26

201332390051

1

22.7

868026

EPARTBOXG26-35

201130490108

1

22.8

868069

TRANFRMRG26-35

202300900537

1

23

868091

REMCTRLG26-35-50-70

203355090395

1

R07

24

868053

CTRLHLDG26-35-50-70

201155090087

1

25

868081

SEALG26-35-50-70

202720090001

1

26

868003

CNTRWTRG26-35-50-70

201101020011

1

27

868065

NUTTLMA01G26-35-50

201600320000

1

28

868066

NUTTLMB02G26-70

201600320001

1

42

iDWMG26-INDOOR


46/60

SageCode

857621

11.2IDWM

Z26-OUTDOOR

43


47/60

No.

SageCode

SageDescription

BOMcode

Qty

Remark

1

868201

TEMPSENSRZ26-35

202301300160

1

2

868109

REARNETZ26-35

2011374G0003

1

3

868170

CNSRCOILASSYZ26-35

201537390033

1

4

868214

PIPETPSENZ26-35-50

202440500004

1

5

868124

VALVEPLATEZ26-35

201235120614

1

6

868137

BASEPANASSYZ26-35

201237590027

1

7

868104

BIGHANDLEZ26-35

201135000005

1

8

868105

WATRCOLLECTRZ26-35

201135270201

1

9

868126

RGHTCLAPBRDZ26-35

201235270204

1

10

868120

CLPCAPCZ26-35-50-70

201200100002

1

11

868211

CAPTRCOMPRZ26-35

202401090055

1

12

868135

PARTNPLATEAZ26-35

201237590008

1

13

868133

FRONTPANELZ26-35

201237400029

1

14

868110

FRONTNETZ26-35

201137590000

1

15

868134

MTRMNTGBRKTZ26-35

201237500005

1

16

868101

AXIALFLWF

ANZ26-35

201100300502

1

17

868132

LEFTSUPPTRZ26-35

201237400028

1

18

868119

SMALLHDLEZ26-35-50

201150290006

1

19

868127

TOPCOVASSYZ26-35

201235270249

1

20

868208

MOTORZ26-35

202400400477

1

21

868195

REACTORZ26-35-50-70

202301000819

1

22

868125

INDUCTCOVRZ26-35

201235250802

1

23

868196

REACTORZ26-35

202301000820

1

24

868217

ELECBOXASSYZ26-35

203337390121

1

24.1

868130

EPRTBXZ26-35-50-70

201237300171

1

24.2

868205

RADIATORZ26-35

202301900068

1

24.3

868129

EPARTBCOVZ26-35-50

201237300162

1

24.4

868164

MAINCTRLBRDZ26-35

201337390032

1

24.5

868108

HLDEPTZ26-35-50-70

201137300162

1

25

868216

BRDTERMASSYZ26-35

203337390043

1

25.1

868203

WIREJOINTZ26-35-50

202301450113

1

25.2

868103

WSHRJNTZ26-35-50-70

201135000004

1

25.3

868122

WIRECLAMPZ26-35-50

201219900001

1

25.4

868136

BOARDOFTERMZ26-35

201237590009

1

26

868184

LIQVALVEASSYZ26

201637390335

1

26.1

868182

LIQUIDVALVEZ26-35

201600740523

1

27

868183

GASVALVEASSYZ26

201632390037

1

27.1

868174

4WAYVALVEZ26-35

201600670003

1

27.2

868177

GASPIPEVALVEZ26

201600720200

1

28

868200

DISCHTPSENSZ26-35

202301300159

1

29

868167

COMPRESSORZ26-35

201400620600

1

DA

108X1C-20FZ3

44

iDWMZ

26-OUTDOOR


48/60

Sag

eCode857622

11.3ID

WMG35-INDOOR

1

2

3

6

8

5

7

9

12

17

18

13

14

15

16

19

20

21

25

23

24

28

26

27

22.

222.

1

22.

3

22.

4

22.

522.

6

22.

7

22

4

10

11

22.

8

45


49/60

N

o.

SageCode

SageDescription

BOMCode

Qty

Remark

1

868024

FRNTPANLASYG26-35

201130490085

1

2

868027

AIRFILTRG26-35

201130490113

2

3

868010

AIRCLEANRG26-35-50

201130100212

1

4

868011

AIRCLNHLDG26-35-50

201130100217

1

5

868086

DISPBOXASSYG26-35

203332390256

1

6

868032

WINDCOVREPG26-35

201130490186

1

7

868028

SCREWC

APG26-35

201130490115

3

8

868046

FRAMEPNLASYG26-35

201132590058

1

9

868023

BAFFLEG26-35-50-70

201130490002

1

1

0

868029

AIROTFRMASYG26-35

201130490117

1

1

1

868075

LOUVERMOTORG26-35

202400200006

1

1

2

868007

DRAINHOSEG26-35-70

201130000011

1

1

3

868020

BREAKWATERG26-35-50

201130310350

1

1

4

868063

EVAPASSYG35

201532590050

1

1

5

868025

MOTORCOVG26-35

201130490106

1

1

6

868077

MOTORG26-35

202400300215

1

1

7

868082

BEARINGHOLDRG26-35

202730100201

1

1

8

868001

CROSSFLWF

ANG26-35

201100200100

1

1

9

868030

CHASSISG26-35

201130490118

1

2

0

868008

CNPIPECLPG26-35-50

201130100204

1

2

1

868054

INSTALLPLATEG26-35

201230390006

1

2

2

868087

DRAINHOSEG26-35-70

203332590029

1

22

.1

868031

EPARTBOXCOVG26-35

201130490184

1

22

.2

868073

WIREJOINTG26-35-50

202301450119

1

22

.3

868080

IDTSENG26-35-50-70

202432390005

1

22

.4

868009

PWRCORDCLAMPG26-35

201130100209

1

22

.5

868071

EVTSENG26-35-50-70

202301300080

1

22

.6

868058

MNCTRLBRD+CHIPG35

201332590036

1

22

.7

868026

EPARTBOXG26-35

201130490108

1

22

.8

868069

TRANFRMRG26-35

202300900537

1

2

3

868091

REMCTRLG26-35-50-70

203355090395

1

R07

2

4

868053

CTRLHLDG26-35-50-70

201155090087

1

2

5

868081

SEALG26-35-50-70

202720090001

1

2

6

868003

CNTRWTRG26-35-50-70

201101020011

1

2

7

868065

NUTTLMA01G26-35-50

201600320000

1

2

8

868067

NUTTLMC03G35-50

201600320002

1

46

iDWMG35-INDOOR


50/60

Sage

Code

857623

11.4IDW

MZ35-OUTDOOR

47


51/60

No.

SageCode

SageDescription

BOMcode

Qty

Re

mark

1

868201

TEMPSENSRZ26-35

202301300160

1

2

868109

REARNETZ26-35

2011374G0003

1

3

868170

CNSRCOILASSYZ26-35

201537390033

1

4

868214

PIPETPSENZ26-35-50

202440500004

1

5

868124

VALVEPLATEZ26-35

201235120614

1

6

868137

BASEPANASSYZ26-35

201237590027

1

7

868104

BIGHANDLEZ26-35

201135000005

1

8

868105

WATRCOLLECTRZ26-35

201135270201

1

9

868126

RGHTCLAPBRDZ26-35

201235270204

1

10

868120

CLPCAPCZ26-35-50-70

201200100002

1

11

868211

CAPTRCOMPRZ26-35

202401090055

1

12

868135

PARTNPLATEAZ26-35

201237590008

1

13

868133

FRONTPANELZ26-35

201237400029

1

14

868110

FRONTNETZ26-35

201137590000

1

15

868134

MTRMNTGBRKTZ26-35

201237500005

1

16

868101

AXIALFLWF

ANZ26-35

201100300502

1

17

868132

LEFTSUPPTRZ26-35

201237400028

1

18

868119

SMALLHDLEZ26-35-50

201150290006

1

19

868127

TOPCOVASSYZ26-35

201235270249

1

20

868208

MOTORZ26-35

202400400477

1

21

868196

REACTORZ26-35

202301000820

1

22

868125

INDUCTCOVRZ26-35

201235250802

1

23

868195

REACTORZ26-35-50-70

202301000819

1

24

868217

ELECBOXASSYZ26-35

203337390121

1

2

4.1

868130

EPRTBXZ26-35-50-70

201237300171

1

2

4.2

868205

RADIATORZ26-35

202301900068

1

2

4.3

868129

EPARTBCOVZ26-35-50

201237300162

1

2

4.4

868164

MAINCTRLBRDZ26-35

201337390032

1

2

4.5

868108

HLDEPTZ26-35-50-70

201137300162

1

25

868216

BRDTERMASSYZ26-35

203337390043

1

2

5.1

868203

WIREJOINTZ26-35-50

202301450113

1

2

5.2

868103

WSHRJNTZ26-35-50-70

201135000004

1

2

5.3

868122

WIRECLAMPZ26-35-50

201219900001

1

2

5.4

868136

BOARDOFTERMZ26-35

201237590009

1

26

868186

LIQVALVEASSYZ35

201637590287

1

2

6.1

868182

LIQUIDVALVEZ26-35

201600740523

1

27

868185

GASVALVEASSYZ35

201637590195

1

2

7.1

868174

4WAYVALVEZ26-35

201600670003

1

2

7.2

868178

GASPIPEVALVEZ35

201600720201

1

28

868200

DISCHTPSENSZ26-35

202301300159

1

29

868167

COMPRESSORZ26-35

201400620600

1

DA108X

1C-20FZ3

48

iDWMZ

35-OUTDOOR


52/60

11.5IDWM

G50-INDOOR

SageCode857624

1

2

4

7

5

6

8

17

18

9

10

15

16

20

21

22

23.

1

23.

2

23.

3

23.

4

23.

5

23.

6

24

25

26

27

29

28

23

14

23.

7

23.

9

19

3

11

12

13

23.

8

49


53/60

No.

SageCode

SageDescrip

tion

BOMCode

Qty

Remarks

1

868018

FRONTPANELASSYG50

201130290255

1

2

868015

AIRFILTRG

50

201130290162

2

3

868010

AIRCLEANRG2

6-35-50

201130100212

1

3.1

868011

AIRCLNHLDG2

6-35-50

201130100217

1

4

868084

DISPLAYBOXAS

SYG50

203330290120

1

5

868019

WINDCOVRREP

AIRG50

201130290288

1

6

868014

SCREWC

AP

G50

201130290161

3

7

868016

PANELFRAMAS

SYG50

201130290164

1

8

868017

AIROUTFRAMASSYG50

201130290253

1

9

868076

LOUVERMOTO

RG50

202400200025

1

10

868004

DRAINHOSE

G50

201101020014

1

11

868021

SENSORCLAMP

G50-70

201130390070

1

12

868023

BAFFLEG26-35

-50-70

201130490002

1

13

868020

BREAKWATERG

26-35-50

201130310350

1

14

868064

EVAPASSYG50

201532790029

1

15

868048

MOTORCOV

G50

201132800003

1

16

868078

MOTORG50

202400300415

1

17

868033

FIXINGBRDBEARG50

201130510515

1

18

868083

BEARINGHOLD

RG50

202730500001

1

19

868000

CROSSFLOWF

ANG50

201100200014

1

20

868047

CHASSISG

50

201132800001

1

21

868008

CNPIPECLPG2

6-35-50

201130100204

1

22

868055

INSTALLNPLAT

EG50

201232790008

1

23

868088

ELECTRLBXIN

DRG50

203332790024

1

23.1

868070

TRANFRMRG

50-70

202300900573

1

23.2

868013

EPARTBOXCOVRG50

201130210070

1

23.3

868073

WIREJOINTG26-35-50

202301450119

1

23.4

868022

WIRECLAMP1G50

201130400042

1

23.5

868080

IDTSENG26-35

-50-70

202432390005

1

23.6

868071

EVTSENG26-35-50-70

202301300080

1

23.7

868059

MNCTRLBRD+C

HIPG50

201332790042

1

23.8

868006

WIRECLAMP2G50

201121990012

1

23.9

868012

ELECCONTRLB

OXG50

201130210069

1

24

868091

REMCTRLG26-3

5-50-70

203355090395

1

25

868053

CTRLHLDG26-3

5-50-70

201155090087

1

26

868081

SEALG26-35-50-70

202720090001

1

27

868003

CNTRWTRG26-35-50-70

201101020011

1

28

868065

NUTTLMA01G2

6-35-50

201600320000

1

29

868067

NUTTLMC03G

35-50

201600320002

1

50

iDWMG50-INDOOR


54/60

11.6

ID

WMZ50-OUTDOOR

SageCode857625

51


55/60

No.

SageCode

SageDescription

BOMcode

Qty

Re

mark

1

868117

REARNETZ50

2011481G0001

1

2

868199

TEMPSENSRZ50-70

202301300057

1

3

868171

CNSRCOILASSYZ50

201537790025

1

4

868214

PIPETPSENZ26-35-50

202440500004

1

5

868123

VALVEPLATEZ50

201235000018

1

6

868141

BASEPANASSYZ50

201237790020

1

7

868120

CLPCAPCZ26-35-50-70

201200100002

1

8

868212

CAPTRCOMPRZ50-70

202401090057

1

9

868116

BIGHANDLEZ50

201145500003

1

10

868142

RGHTCLAPBRDZ50

20123799G001

1

11

868106

WATERCOLLECTRZ50

201135290005

1

12

868155

FTRGHTCLPBDASZ50

2012481G0001

1

13

868139

PARTNPLATEASSYZ50

201237790004

1

14

868153

FRONTPANELZ50

201248100071

1

15

868112

FRONTNETZ50-70

201138090000

1

16

868148

MTRMNTGBRKTZ50

201245220804

1

17

868194

FOAMMOTORHOLDRZ50

202245500001

1

18

868115

AXIALFLOWF

ANZ50

201145500002

1

19

868152

LEFTSUPPTRZ50

201248100070

1

20

868209

ASYNCHMTRIRONZ50

202400410652

1

21

868154

SUPPBRDMTRHLDZ50

201248100076

1

22

868119

SMALLHDLEZ26-35-50

201150290006

1

23

868156

TOPCOVASSYZ50

2012481G0035

1

24

868195

REACTORZ26-35-50-70

202301000819

1

25

868140

2COVREACTFILTZ50

201237790013

1

26

868197

REACTORZ50-70

202301000834

1

27

868219

ELECBOXASSYZ50

203337790029

1

27.1

868130

EPRTBXZ26-35-50-70

201237300171

1

27.2

868206

RADIATORZ50

202301900075

1

27.3

868129

EPARTBCOVZ26-35-50

201237300162

1

27.4

868165

MAINCTRLBRDZ50

201337790004

1

27.5

868108

HLDEPTZ26-35-50-70

201137300162

1

28

868218

BOARDTERMASSYZ50

203337790021

1

28.1

868203

WIREJOINTZ26-35-50

202301450113

1

28.2

868103

WSHRJNTZ26-35-50-70

201135000004

1

28.3

868122

WIRECLAMPZ26-35-50

201219900001

1

28.4

868138

BOARDOFTERMZ50

201237790003

1

29

868187

LIQVALVEASSYZ50

201637790048

1

29.1

868181

LIQUIDVALVEZ50

201600740522

1

30

868188

GASVALVEASSYZ50

201637790327

1

30.1

868175

4WAYVALVEZ50

201600690011

1

30.4

868176

GASPIPEVALVEZ50

201600720194

1

31

868202

DISTPSENSASZ50-70

202301310068

1

32

868168

COMPRESSORZ50

201400710680

1

C-6RV

N93H0N

33

868213

HEATBELTCOMPZ50-70

202403100501

1

52

iDWMZ

50-OUTDOOR


56/60

11.7IDW

MG70-INDOOR

Sage

Code857628

53


57/60

No.

SageCode

SageDescription

BOMCode

Qty

Rema

rk

1

868051

FRONTPANELASSYG70

201133190012

1

2

868041

AIRFILTRG70

201130790202

2

3

868090

DISPLAYBOXASSYG70

203333190024

1

4

868039

AIRCLEANRG70

201130790130

1

4.1

868038

AIRCLEANHLDRG70

201130790129

1

5

868040

SCREWC

APG70

201130790131

5

6

868052

PANELFRAMEG70

201133190015

1

7

868045

AIROUTFRAMASSYG70

201130790206

1

8

868074

LOUVERMOTORG70

202400200004

1

9

868007

DRAINHOSEG26-35-70

201130000011

1

10

868021

SENSORCLAMPG50-70

201130390070

1

11

868023

BAFFLEG26-35-50-70

201130490002

1

12

868080

IDTSENG26-35-50-70

202432390005

1

13

868061

EVAPASSYG70

201530790075

1

14

868071

EVTSENG26-35-50-70

202301300080

1

15

868042

WATERPROOFBRDG70

201130790203

1

16

868035

MOTORSMALLCOVG70

201130790124

1

17

868036

MOTORCOVG70

201130790127

1

18

868079

MOTORG70

202400410648

1

19

868037

BASEFORMOTORG70

201130790128

1

20

868005

BEARINGHOLDRG70

201101090004

1

21

868002

CROSSFLOWF

ANG70

201100290011

1

22

868044

CHASSISASSYG70

201130790205

1

23

868043

CRNRBRDCHASSISG70

201130790204

1

24

868056

INSTALLNPLATEG70

201233190002

1

25

868089

ELECTRLBXINDRG70

203333090141

1

25.1

868050

EPARTBOXG70

201133090113

1

25.2

868049

EPARTBOXCOVRG70

201133090112

1

25.3

868060

MNCTRLBRD+CHIPG70

201333090163

1

25.4

868070

TRANFRMRG50-70

202300900573

1

25.5

868072

WIREJOINTG70

202301420101

1

25.6

868034

POWERCORDCLAMPG70

201130790120

1

26

868091

REMCTRLG26-35-50-70

203355090395

1

R07

27

868053

CTRLHLDG26-35-50-70

201155090087

1

28

868066

NUTTLMB02G26-70

201600320001

1

29

868068

COPPERNUTG70

201600320003

1

30

868081

SEALG26-35-50-70

202720090001

1

31

868003

CNTRWTRG26-35-50-70

201101020011

1

54

iDWMG70-INDOOR


58/60

11.8

IDW

MZ70-OUTDOOR

Sage

Code

857629

55


59/60

No.

S

ageCode

SageDescription

BOMcode

QtyR

emark

No.

SageCode

SageD

escription

BOMcode

Qty

Remark

1

868118

REARNETZ70

201148200000

1

28

868159

TOPCO

VASSYZ70

2012482G0013

1

2

868199

TEMPSENSRZ50-7

0

202301300057

1

29

868161

INDUCT

COVRZ70

201250200303

1

3

868111

WATERPROOFBRDZ

70

201137990000

1

30

868163

PROTBRD

INDUCTZ70

201250200306

1

4

868172

CNSRCOILASSYZ7

0

201538090030

1

31

868198

REAC

TORZ70

202301040055

1

5

868215

PIPETEMPSENSRZ

70

202441200200

1

32

868162

HLDRBRD

INDUCTZ70

201250200305

1

6

868151

VALVEPLATEZ70

201245370923

1

33

868221

ELECBO

XASSYZ70

203338090086

1

7

868146

BASEPANASSYZ7

0

20123809G003

1

33.1

868207

RADIA

TORZ70

202301900084

1

8

868120

CLPCAPCZ26-35-50-

70

201200100002

1

33.2

868131

EPARTBO

XCOVRZ70

201237300173

1

9

868212

CAPTRCOMPRZ50-70

202401090057

1

33.3

868166

MAINCT

RLBRDZ70

201338090004

1

10

868113

BIGHANDLEZ70

201145320903

1

33.4

868108

HLDEPT

Z26-35-50-70

201137300162

1

11

868107

WATERCOLLECTRZ

70

201135490001

1

33.5

868130

EPRTBX

Z26-35-50-70

201237300171

1

12

868128

RGHTCLAPBRDZ7

0

201235490023

1

34

868220

BOARDTE

RMASSYZ70

203338090035

1

13

868150

FTRGHTCLPBDASZ

70

201245320946

1

34.1

868204

WIREJOINTZ70

202301450118

1

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