Checking

 

Meaning, detecting method

code

 

 

 

 

 

 

 

 

6607

No ACK error

When no ACK signal is detected in 6 continuous times with 30 second

(continued)

 

interval by transmission side controller, the transmission side detects error.

 

 

 

 

 

 

Note: The address/attribute shown on remote controller indicates the

 

 

 

controller not providing the answer (ACK).

 

 

 

 

 

 

 

 

 

System

compo- Generating sition unit address

 

5 System

(MELANS)controllersystemwithsystemConnecting(3)

controller

(SC)

 

 

Address

 

which

 

should not

 

be existed

Norelationwithsystem

 

Display of

Detecting

 

Cause

 

Checking method & countermeasure

trouble

method

 

 

 

 

 

 

Remote

No reply

Trouble of partial remote controller:

 

Check 1) ~ 3) left.

controller

(ACK) at

1)

Faulty wiring of RC transmission line.

 

(RC)

SC

2)

Slipping off or poor contact of RC transmis-

 

 

transmis-

 

sion connector.

 

 

 

sion to IC

3)

Faulty RC.

 

 

 

 

Trouble of all IC in one refrigerant system.

Confirm OC trouble diagnosis LED.

 

 

1)

Error detected by OC unit.

 

→ At trouble generation, check for the

 

 

 

Total capacity error

(7100)

content according to check code.

 

 

 

Capacity code setting error

(7101)

Check the content of 2) ~ 4) shown left.

 

 

 

Connecting number error

(7102)

 

 

 

 

Address setting error

(7105)

 

 

 

2)

Slipping off or short circuit of transmission line

 

 

 

 

of OC unit terminal block for central control

 

 

 

 

(TB7).

 

 

 

 

3)

Power source shut down of OC unit.

 

 

 

4)

Trouble of OC unit electrical system.

 

 

 

Trouble of all RC:

 

Check the causes 1)~4) left.

1)As same that for single refrigerant system.

2)Inserting supply power connector (CN40) to OC transmission line for centralized control.

3)Slipping off or power shutdown of power sup- ply unit for transmission line.

4)Faulty MELANS.

-- 1) IC unit is keeping the memory of the original As some IC units are keeping the group setting with RC although the RC ad- memory of the address not existing, de-

dress was changed later.

lete the information.

The same symptom will appear for the regis-

Employ one of the deleting method

tration with SC.

among two below.

2) IC unit is keeping the memory of the original

1) Deletion by remote controller.

interlocking registration with Fresh Master with

 

Delete unnecessary information by

RC although the Fresh Master address was

 

the manual setting function of remote

changed later.

 

controller.

 

2) Deletion by connecting information

 

 

deleting switch of OC unit.

 

 

 

 

 

 

Be careful that the use of this

 

 

 

method will delete all the group in-

 

 

 

formation set with RC and all the

 

 

 

interlocking information of Fresh

 

 

 

Master and IC unit.

 

 

 

 

 

 

 

1

Shut down OC unit power source,

 

 

 

and wait for 5 minutes.

 

2

Turn on the dip switch SW2-2 pro-

 

 

 

vided on OC unit control circuit

 

 

 

board.

 

3

Make OC unit power source, and

 

 

 

wait for 5 minutes.

 

4

Shut down OC unit power source,

 

 

 

and wait for 5 minutes.

 

5

Turn off the dip switch SW2-2 pro-

 

 

 

vided on OC unit control circuit

 

 

 

board.

 

6

Make OC unit power source.

–124–

Page 125 Page 127
Page 126
Image 126
Mitsubishi Electronics P500YMF-C, PURY-P400 specifications 124
Page 125 Page 127

PURY-P400, P500YMF-C specifications

Mitsubishi Electronics has long been a leader in the HVAC industry, known for its innovative technology and reliable performance. Among its notable offerings are the P500YMF-C and PURY-P400 models, designed to address the diverse needs of commercial and residential applications.

The Mitsubishi P500YMF-C is a high-performance outdoor unit that showcases energy efficiency and advanced refrigerant technology. It employs a sophisticated inverter-driven compressor, which optimizes energy usage by adjusting its speed based on the specific heating and cooling demands of the environment. This flexibility helps to minimize energy consumption while ensuring optimal comfort.

One of the standout features of the P500YMF-C is its ability to provide consistent heating and cooling even in extreme outdoor temperatures. The unit can operate effectively in low-temperature conditions, making it ideal for regions with harsh winters. Furthermore, the system is designed with a robust build, ensuring durability and longevity.

On the other hand, the PURY-P400 is an indoor multi-split system that complements the outdoor unit perfectly. It's designed for versatility and efficiency, capable of accommodating multiple indoor units connected to a single outdoor unit. This feature is particularly beneficial for larger spaces or buildings where different zones require individual climate control.

The PURY-P400 incorporates Mitsubishi's advanced filtration technology, which significantly improves indoor air quality. It features a multi-layer filtration system that effectively removes dust, allergens, and other particulates from the air, ensuring a healthier environment for occupants.

Both systems utilize R-32 refrigerant, which has a lower global warming potential compared to traditional refrigerants. This not only makes them more eco-friendly but also complies with emerging environmental regulations. The ease of installation and operation of these units is another noteworthy characteristic, with intuitive controls and user-friendly interfaces that facilitate seamless integration into existing systems.

In summary, the Mitsubishi P500YMF-C and PURY-P400 represent a fusion of technology, efficiency, and user-centric design. With a range of features aimed at enhancing performance and environmental sustainability, these models are an excellent choice for anyone looking to invest in a reliable and efficient HVAC system. Whether for residential or commercial use, Mitsubishi’s offerings continue to set the standard in comfort and efficiency.
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