From the previous page.

Error Code

Abnormal point and detection method

Case

Judgment and action

 

 

 

 

 

 

 

4. If displayed address or attribute is

1 During group operation with

Same as mentioned in “A7” of the previous

 

 

remote controller,

indoor unit of multi- refrigerant

page.

 

 

Indoor unit detects abnormality when

system, if indoor unit transmit

 

 

 

indoor unit transmitted to remote con-

to remote controller while out-

 

 

 

troller and there was no reply (ACK).

door unit power supply of one

 

 

 

 

refrigerant system is turned off

 

 

 

 

or within 2 minutes of restart,

 

 

 

 

abnormality is detected.

 

 

 

 

2 Contact failure of transmission

 

 

 

 

wire of remote controller or

 

 

 

 

indoor unit

 

 

 

 

3 Disconnection of transmission

 

 

 

 

connector (CN2M) of indoor

 

 

 

 

unit

 

 

 

 

4 Defective transmitting receiv-

 

 

 

 

ing circuit of indoor unit or

 

 

 

 

remote controller

 

 

 

 

 

 

 

 

5. If displayed address or attribute is

1 During sequential operation of

 

 

 

FRESH MASTER,

indoor unit and FRESH MAS-

 

 

 

Indoor unit detects abnormality when

TER of other refrigerant sys-

 

 

 

indoor unit transmitted to FRESH MAS-

tem, if indoor unit transmits to

 

 

 

TER and there was no reply (ACK).

FRESH MASTER while out-

 

 

 

 

door unit power supply of

 

 

 

 

same refrigerant system with

 

 

 

 

FRESH MASTER is turned off

 

 

 

 

or within 2 minutes of restart,

 

 

 

 

abnormality is detected.

 

 

 

 

2 Contact failure of transmission

 

 

 

 

wire of indoor unit or FRESH

 

 

 

 

MASTER

 

 

 

 

3 Disconnection of transmission

 

 

 

 

connector (CN2M) of indoor

 

 

 

 

unit or FRESH MASTER

 

 

 

 

4 Defective transmitting receiv-

 

 

 

 

ing circuit of indoor unit or

 

A7

 

FRESH MASTER

 

 

 

 

(6607)

 

 

 

 

 

6. If displayed address or attribute is

1 If the power supply of LOSS-

 

 

 

 

 

 

LOSSNAY,

NAY is turned off, indoor unit

 

 

 

Indoor unit detects abnormality when

detects abnormality when it

 

 

 

indoor unit transmitted to LOSSNAY and

transmits to LOSSNAY.

 

 

 

there was no reply (ACK).

2 During sequential operation of

 

 

 

 

indoor unit and LOSSNAY of

 

 

 

 

other refrigerant system, if

 

 

 

 

indoor unit transmits to LOSS-

 

 

 

 

NAY while outdoor unit power

 

 

 

 

supply of same refrigerant sys-

 

 

 

 

tem with LOSSNAY is turned

 

 

 

 

off or within 2 minutes of

 

 

 

 

restart, abnormality is detect-

 

 

 

 

ed.

 

 

 

 

3 Contact failure of transmission

 

 

 

 

wire of indoor unit of LOSS-

 

 

 

 

NAY

 

 

 

 

4 Disconnection of transmission

 

 

 

 

connector (CN2M) of indoor

 

 

 

 

unit

 

 

 

 

5 Defective transmitting receiv-

 

 

 

 

ing circuit of indoor unit or

 

 

 

 

LOSSNAY

 

 

 

 

 

 

 

 

7. If displayed address or attribute is

1 The unit of former address

 

 

 

nonexistent,

does not exist as address

 

 

 

 

switch has changed while the

 

 

 

 

unit was energized.

 

 

 

 

2 Abnormality is detected when

 

 

 

 

indoor unit transmitted

 

 

 

 

because the address of

 

 

 

 

FRESH MASTER and LOSS-

 

 

 

 

NAY are changed after

 

 

 

 

sequential operation of

 

 

 

 

FRESH MASTER and LOSS-

 

 

 

 

NAY by remote controller.

 

 

 

 

 

 

44

Page 43 Page 45
Page 44
Image 44
Mitsubishi Electronics PUZ-A42NHA2-BS, PUZ-A30NHA2, PUY-A36NHA2, PUZ-A36NHA2 From the previous, Fresh Master, Lossnay, Nay
Page 43 Page 45

PUZ-A36NHA2-BS, PUY-A12NHA2, PUY-A42NHA2-BS, PUY-A30NHA2, PUZ-A36NHA2 specifications

Mitsubishi Electronics has long been a leader in the HVAC industry, and their range of air conditioning units, including the PUY-A24NHA2, PUZ-A24NHA2, PUY-A24NHA2-BS, PUZ-A42NHA2-BS, and PUY-A42NHA2, exemplifies their commitment to innovation and energy efficiency. These models are designed to provide optimal climate control for both residential and commercial applications, ensuring comfort throughout the year.

One of the defining features of these models is their advanced inverter technology, which allows for precise temperature control and reduced energy consumption. The inverter technology adjusts the compressor speed according to the cooling load, significantly lowering operating costs compared to traditional fixed-speed systems. This means that users can enjoy consistent comfort without worrying about surging energy bills.

The PUY and PUZ units come equipped with powerful indoor and outdoor components that enable efficient heat exchange. These systems provide excellent performance even in extreme weather conditions, with reliable operation at low ambient temperatures. This capability ensures that you can maintain a comfortable environment, no matter the season.

Additionally, the models are designed with quiet operation in mind. The outdoor units incorporate noise-reduction technology, ensuring that the systems operate at minimal sound levels. This is especially beneficial for residential areas or office environments, where maintaining a peaceful atmosphere is crucial.

Mitsubishi Electronics has also integrated smart technology into these units. With options for remote control via Wi-Fi, users can manage their air conditioning settings from anywhere, using their smartphones or tablets. This integration enhances user convenience and allows for more efficient scheduling and energy management.

These models are also known for their environmentally friendly refrigerants, such as R410A, which contribute to lower global warming potential and align with modern sustainability practices. By choosing Mitsubishi's PUY and PUZ series, consumers not only prioritize their comfort but also contribute to environmental conservation.

In summary, the Mitsubishi Electronics PUY-A24NHA2, PUZ-A24NHA2, PUY-A24NHA2-BS, PUZ-A42NHA2-BS, and PUY-A42NHA2 air conditioning units are equipped with cutting-edge technology, offering energy efficiency, quiet operation, and smart functionality. Whether for residential or commercial use, these units are designed to meet the demands of modern climate control while prioritizing energy savings and sustainability.
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