Checking

Meaning, detecting method

 

Cause

 

Checking method & Countermeasure

code

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7102

Connected unit count over

2)

The Outdoor unit address is being

d) Check for the model total (capacity code total)

 

 

 

 

 

set to 51~100 under automatic ad-

of indoor units connected.

 

 

 

 

 

dress mode (Remote controller dis-

 

 

 

 

 

 

plays “HO”).

 

 

 

 

 

 

3)

Disconnection of transmission wir-

 

 

 

 

 

 

ing at Outdoor unit.

 

 

 

 

 

 

4)

Short circuit of transmission line in

 

 

 

 

 

 

case of 3) & 4), remote controller

 

 

 

 

 

 

displays “HO”.

 

 

 

 

 

 

5)

Disconnection of transmission wir-

 

 

 

 

 

 

ing at BC controller.

 

 

 

 

 

 

6)

BC controller not for the BIG R2

 

 

 

 

 

 

(model: FA, FB type) is connected.

 

 

 

 

 

 

7105

Address setting error

1)

Setting error of Outdoor unit ad-

Check that the address of OC unit is being set to

 

• Erroneous setting of OC unit

 

dress.

 

51~100.

 

address

 

The address of Outdoor unit is not

Reset the address if it stays out of the range, while

 

• Erroneous setting of BC con-

 

being set to 51~100.

 

shutting the power source off.

 

troller address

2)

The address of BC controller is not

When BC controller is out of the range, reset it while

 

 

 

 

 

being set within 51~100.

 

shutting the power source of both OC unit and BC

 

 

Trouble source :

 

 

 

 

controller off.

 

 

Outdoor unit

 

 

 

 

 

 

 

BC controller

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7107

Branch No. setting error

1)

Indoor unit capacity per connector

a) Check indoor unit connection No. in refrigerant

 

Can not operate because branch

 

joint is exceeded as follows:

circuit.

 

No. of indoor unit wrongly set.

 

Single connection

:

1 No four or more indoor units which are set

 

 

 

 

 

81 or more

 

for the same branch No. A?

 

 

Trouble source :

 

 

Two connection joint

:

2 Check total capacity of indoor units which

 

 

BC controller

 

 

161 or more

 

are set for the same branch No. Judged as

 

 

 

 

 

Three connection joint

:

trouble when it applies to Cause 1).

 

 

 

 

 

 

 

 

 

 

241 or more

 

3 Check whether the smallest branch No. is

 

 

 

 

 

Four connection joint

:

set when used at joint.

 

 

 

 

 

321 or more

 

b) Check whether indoor unit capacity code (SW2)

 

 

 

 

 

 

 

 

 

 

 

2)

Four or more indoor units are set

is wrongly set. (Keep factory shipment condition.)

 

 

 

 

 

for the same connection.

For erroneous switch setting, modify it, turn off

 

 

 

 

 

 

 

the power source of outdoor unit, and indoor unit

 

 

 

 

3)

The smallest branch No. has not

simultaneously for 5 minutes or more, and then

 

 

 

 

 

been set when used at joint.

turn on.

 

 

 

 

4)

Does the address of BC controller

C) Verify the address of BC controller (slave) and

 

 

 

 

 

(slave) become the least address +

Indoor Unit.

 

 

 

 

 

50 of Indoor controller connecting

 

 

 

 

 

 

to BC controller (slave)?

 

 

 

 

 

 

5)

The address of Indoor Unit, which

 

 

 

 

 

 

is connected to BC controller

 

 

 

 

 

 

(slave), sets up the small address

 

 

 

 

 

 

from the greatest address of Indoor

 

 

 

 

 

 

Unit which is connected to BC con-

 

 

 

 

 

 

trol (master).

 

 

 

 

 

 

 

7111

Remote control sensor error

1)

In case when the old type remote

a) Replace the old remote controller by the new

 

Error not providing the tempera-

 

controller for M-NET is used and the

remote controller.

 

ture designed to remote control-

 

remote controller sensor is de-

 

 

ler sensor.

 

signed on indoor unit. (SW1-1

 

 

 

 

 

 

turned ON)

 

 

 

 

Trouble source :

 

 

 

 

 

 

 

Indoor unit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7130

Different Indoor model and BC

A indoor unit not for the R407C (model:

Use the P••• indoor unit.

 

controller connected error

P••• ) is connected.

 

 

 

 

 

 

 

 

 

 

–126–

Page 127 Page 129
Page 128
Image 128
Mitsubishi Electronics P500YMF-C, PURY-P400 specifications 126
Page 127 Page 129

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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