6. Electrical work

M-NET Remote Controller

L1

MA Remote Controller

L1

OC

(51)

TB3

M1M2S M1M2 S

TB7

r1

2

D

L

 

OC

L3

(53)

TB3

M1M2S M1M2 S

TB7

L6

Power Supply

 

Unit

 

M1M2S

L7

G-50A

 

 

M1M2S

IC

(01)

TB5

M1M2S

A B

(101)

RC

IC

(03)

TB5

M1M2S

A

 

C

IC

IC

IC

(02)

(05)

(06)

TB5

TB5

TB5

M1M2S

M1M2S

M1M2S

r2

r3

 

A B

A B

 

(105)

(155)

 

RC

RC

L4

 

E

 

 

IC

IC

 

(04)

(07)

 

TB5

TB5

 

M1M2S

M1M2S

 

L5

 

 

r4

 

 

A B

 

 

(104)

 

 

RC

 

 

B

 

 

L2

L7L6

OC

(51)

TB3

M1M2S M1M2 S

TB7

D

OC

(53)

TB3

M1M2S M1M2 S

TB7

Power Supply

Unit

M1M2S

G-50A

M1M2S

 

 

A

 

IC

 

IC

 

 

 

c2

 

(01)

 

(02)

TB5

TB15

TB5

TB15

M1M2S

1 2

M1M2S

1 2

 

 

c1

 

3

 

 

 

c

A B

 

 

 

 

 

 

MA

 

 

L3

 

 

L4

IC

 

IC

 

(03)

 

(04)

TB5

TB15

TB5

TB15

M1M2S

1 2

M1M2S

1 2

 

 

 

c1

 

 

 

A B

 

 

 

MA

 

 

B

 

 

 

C

 

 

IC

 

 

IC

(05)

 

c2

(06)

 

 

TB5

TB15

 

TB5

TB15

M1M2S

1 2

 

M1M2S

1 2

 

c1

c4

 

 

 

 

 

 

 

A B

A

B

3

 

 

 

 

c

 

MA

MA

 

 

 

E

 

IC

 

 

 

 

(07)

 

 

 

 

TB5

TB15

 

 

 

M1M2S

1 2

 

 

 

Fig. 6-2

A : Group 1

B: Group 3

C: Group 5

D: Shielded Wire

E: Sub Remote Controller ( ): Address

Fig. 6-3

6.4. Wiring of main power supply and equipment capacity

Schematic Drawing of Wiring (Example) (Fig. 6-4)

C

A

B

A

~/N 208/230 V

GR

~/N 208/230 V

D

D

D

D

A: Switch (Breakers for Wiring and Current Leakage)

B: Outdoor Unit

C: Pull Box

D: Indoor Unit

Fig. 6-4

Thickness of Wire for Main Power Supply and On/Off Capacities

 

 

 

Minimum Wire Thickness

Breaker for

Breaker for Current

 

Minimum

Maximum rating

 

 

Power Supply

(mm2

[AWG])

 

circuit

of over current

 

 

Wiring*1

Leakage

 

Model

 

 

Main Cable*2

 

Ground

 

ampacity

protector device

 

 

 

 

 

 

Outdoor Unit

P36, P48

~/N (single), 60 Hz, 208/230 V

5.3 [AWG10]

 

5.3 [AWG10]

30 A

30 A 30 mA 0.1 sec. or less

 

26 A

40 A

 

 

 

 

 

 

 

 

 

 

 

Indoor Unit

~/N (single), 60 Hz, 208/230 V

 

 

 

Refer to installation manual of indoor unit.

 

 

 

 

 

 

 

 

 

 

 

 

 

*1. A breaker with at least 3.0 mm [1/8 inch] contact separation in each poles shall be provided. Use non-fuse breaker (NF) or earth leakage breaker (NV).

*2. Use copper supply wires. Use the electric wires over the rating voltage 300 V.

1.Use a separate power supply for the outdoor unit and indoor unit.

2.Bear in mind ambient conditions (ambient temperature,direct sunlight, rain water,etc.) when proceeding with the wiring and connections.

3.The wire size is the minimum value for metal conduit wiring. The power cord size should be 1 rank thicker consideration of voltage drops. Make sure the power-supply voltage does not drop more than 10%.

4.Specific wiring requirements should adhere to the wiring regulations of the region.

5.Power supply cords of parts of appliances for outdoor use shall not be lighter than polychloroprene sheathed flexible cord (design 60245 IEC57). For example, use wiring such as YZW.

6.Install an earth longer than other cables.

Warning:

Be sure to use specified wires to connect so that no external force is imparted to terminal connections. If connections are not fixed firmly, it may cause heating or fire.

Be sure to use the appropriate type of overcurrent protection switch. Note that generated overcurrent may include some amount of direct current.

Caution:

Some installation site may require attachment of an earth leakage breaker. If no earth leakage breaker is installed, it may cause an electric shock.

Do not use anything other than breaker and fuse with correct capacity. Using fuse and wire or copper wire with too large capacity may cause a malfunction of unit or fire.

10

Page 10
Image 10
Mitsubishi Electronics R410A Wiring of main power supply and equipment capacity, Schematic Drawing of Wiring Example Fig

R410A specifications

Mitsubishi Electronics R410A is a highly regarded refrigerant widely used in modern HVAC systems, particularly air conditioning units. This hydrofluorocarbon (HFC) refrigerant has gained popularity due to its environmental benefits and performance characteristics that meet the demands of contemporary cooling solutions.

One of the main features of R410A is its high energy efficiency. The refrigerant operates at a higher pressure compared to its predecessor, R22, which allows for smaller, more compact systems. This higher efficiency translates to lower energy consumption during operation, making R410A an environmentally friendly option that contributes to reducing greenhouse gas emissions. The energy savings not only benefit the environment but also reduce operational costs for end-users.

R410A also boasts excellent cooling capacity. Its thermodynamic properties enable effective heat exchange, making it suitable for various applications ranging from residential air conditioners to commercial chillers. The ability to maintain effective cooling performance even at high outdoor temperatures is a crucial characteristic, especially in warmer climates where high reliability is essential.

In terms of safety, R410A is classified as non-flammable and has a low toxicity level, making it a safer choice for use in both residential and commercial installations. It carries an ozone depletion potential (ODP) of zero, aligning with global efforts to phase out substances that deplete the ozone layer. As such, it complies with various international environmental regulations, ensuring that users are contributing to a sustainable future.

Mitsubishi Electronics integrates advanced technologies in their heating and cooling systems that utilize R410A. Features such as variable speed compressors and advanced control systems optimize performance, enhancing both comfort and energy efficiency. Additionally, the systems are designed to offer quiet operation, catering to users who prioritize noise reduction in their living or working environments.

In conclusion, Mitsubishi Electronics R410A refrigerant presents a combination of high energy efficiency, excellent cooling capacity, and safety attributes, solidifying its role as a vital component in contemporary HVAC technology. By utilizing R410A, Mitsubishi Electronics demonstrates its commitment to sustainability and performance, offering solutions that cater to the diverse needs of consumers while minimizing environmental impact.