CIRCUIT DIAGRAM

INDOOR UNIT

OUTDOOR UNIT

MR09Y3H

RED

S

WHITE R C M COMPRESSOR

BLACK C

 

 

 

 

 

1

2

3

4

5

6

7

8

 

 

 

CN201

 

 

 

 

 

 

CN8

 

 

 

 

 

1

RED

1

1

 

 

 

 

 

 

 

 

1 1

RED

 

2

WHITE

2 2

 

 

 

 

 

 

 

 

2 2

ORANGE

INDICATOR

3

WHITE

3 3

 

 

 

 

 

 

CN5

3 3

YELLOW

4

WHITE

4 4

CN3

 

 

 

 

 

 

4 4 PINK

PCB ASSY

5

WHITE

5 5

 

 

 

 

 

 

 

 

5 5

BLUE

 

6

WHITE

6 6

CONTROLLER

 

 

 

 

WHITE

 

 

 

 

7

 

7

7

 

PCB ASSY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

( MAIN PCB )

 

1 1

BLACK

 

 

BLUE

 

 

 

 

 

 

 

 

CN4

2 2

BLACK

 

 

1 1

 

 

 

 

 

 

3 3

BLACK

 

 

YELLOW

2 2

 

 

 

 

 

 

 

 

4 4

BLACK

 

 

WHITE

3 3

CN7

 

 

 

 

 

 

 

 

FAN MOTOR F M

BLACK

4 4

 

 

 

 

 

 

 

 

 

 

RED

5 5

 

 

 

 

 

 

 

 

 

 

 

 

6 6

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

CN6 3

TEST

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

1

CN2

 

 

 

 

 

 

5

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CN1

 

 

W4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

2

3

4

5

 

 

 

 

 

 

 

 

 

 

1

2

3

4

5

 

 

 

 

 

 

 

 

 

 

BLACK

 

WHITE

 

RED

 

 

 

 

 

 

 

 

 

 

 

 

FUSE 102

 

GREEN

 

 

 

 

 

 

 

 

THERMAL

 

 

 

 

 

 

 

 

 

 

CONTROLLER PCB ASSY

 

 

 

 

 

REACTOR

 

REACTOR

 

 

 

 

 

 

 

M

STEP MOTOR

 

 

 

 

 

 

 

 

 

 

 

( LOUVER )

 

 

 

 

 

 

 

 

 

 

 

 

 

 

or

 

 

 

 

W7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WHITE

 

WHITE

 

 

 

W8

 

 

 

 

 

 

 

 

W10

W9

 

 

 

 

 

RED

 

RED

 

 

 

 

 

 

 

 

 

 

W11

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PIPE THERMISTOR

 

 

 

 

 

 

 

 

1

1

RED

 

 

 

 

 

 

 

 

 

 

 

ROOM THERMISTOR

PIPE THERMISTOR

BLACK

1

1

 

 

2

2

 

 

 

 

 

 

BLACK

2

2

CN61

 

3

3

BLACK

 

DISCHARGE THERMISTOR

BLACK

3

3

CN800

4

4

WHITE

 

 

 

 

 

BLACK

4

4

 

 

5

5

YELLOW

 

 

 

 

 

 

 

 

 

 

6

6

BROWN

 

 

 

 

 

 

 

 

 

 

7

7

 

 

 

 

 

 

 

 

 

 

1

1

RED

 

 

 

 

 

 

 

 

 

 

2

2

BROWN

 

OUTDOOR THERMISTOR

BLACK

1

1

 

CN40

3

3

BLUE

 

 

 

 

 

 

2

2

CN62

4

4

ORANGE

 

 

 

 

 

BLACK

 

5

5

YELLOW

 

 

 

 

 

 

3

3

 

 

6

6

WHITE

 

 

 

WHITE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RED

 

 

W4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FUSE

 

 

WHITE

 

 

 

 

 

 

RED

 

 

 

 

 

 

W2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

250V 5A

 

 

BLACK

W1

 

 

 

BLUE

 

 

 

 

 

 

 

 

ORANGE

 

 

 

 

 

 

 

 

 

 

 

 

BLACK

BLACK

BLACK

GREEN

 

 

 

CN501

2

2

YELLOW

 

 

 

 

 

BLACK

 

 

 

 

 

FUSE

 

 

 

 

 

 

WHITE

 

 

 

 

 

250V 20A

 

 

W3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

1

BLACK

MR12Y3H

RED

R(R)U

WHITE

C M COMPRESSOR

S(S)V

 

BLACK

C(T)W

 

F M FAN MOTOR

PMV EXPANSION VALVE COIL

or

PMV EXPANSION VALVE COIL

4WV 4-WAY VALVE COIL

G

TERMINAL BOARD 1 2

3 L1 L2 G

EARTH

 

 

 

TERMINAL

1 2 3

TERMINAL BOARD

POWER SOURCE

5

Page 6
Image 6
Friedrich MR09Y3H, MR12Y3H manual Circuit Diagram

MR12Y3H, MR09Y3H specifications

Friedrich MR09Y3H and MR12Y3H are two highly efficient ductless mini-split air conditioning systems that cater to residential and commercial spaces with specific needs for temperature control. Both models are characterized by their advanced features, energy efficiency, and user-friendly technologies.

The MR09Y3H provides a cooling capacity of 9,000 BTUs, while the MR12Y3H boasts a slightly more powerful 12,000 BTUs. This variation allows users to choose the appropriate model based on the size and layout of their space, ensuring optimal cooling and heating performance. Both units excel in energy efficiency, boasting SEER ratings that often exceed 20. This not only translates to lower electricity bills but also reflects their compliance with environmental standards.

One of the standout features of both models is their inverter technology, which allows for variable compressor speed operation. This technology enables the units to adapt to the cooling or heating demands of the space, resulting in enhanced comfort and reduced energy consumption. The inverter compressor operates silently, making both models ideal for bedrooms, offices, and other noise-sensitive environments.

Another remarkable characteristic of the Friedrich MR series is their advanced air filtration system, which includes a multi-layer filter designed to capture dust, pollen, and other airborne particles. This ensures cleaner and healthier air quality, benefiting individuals with allergies or respiratory conditions.

Both the MR09Y3H and MR12Y3H come equipped with user-friendly remote controls, allowing for easy adjustment of temperature settings, fan speeds, and modes. The units also feature a programmable timer and sleep mode, enabling users to customize their air conditioning schedules for maximum comfort and efficiency.

Installation is made simple with the inclusion of easy-to-follow instructions and a compact design that allows for flexibility in placement. The outdoor unit is designed for durability, ensuring reliable performance even in harsh weather conditions.

In summary, the Friedrich MR09Y3H and MR12Y3H offer a combination of energy efficiency, advanced technology, and superior air quality control, making them excellent choices for those seeking reliable and effective cooling and heating solutions. Whether for a small office, a large living room, or an entire apartment, these models are designed to deliver high-performance climate control while meeting the demands of modern users.