8-5. Caution for Pump Down

Pump down means refrigerant gas in the system is returned to the outdoor unit. Pump down is used when the unit is to be moved, or before servicing the refrigerant circuit.

CAUTION

This outdoor unit cannot collect more than the rated refrigerant amount as shown by the nameplate on the back.

If the amount of refrigerant is more than that recommended, do not conduct pump down. In this case use another refrigerant collecting system.

8-6. Meaning of Alarm Messages

Table of Self-Diagnostics Functions and Description of Alarm Displays

Alarm messages are indicated by the blinking of LED 1 and 2 (D72, D75) on the outdoor unit PCB. They are also displayed on

the wired remote controller.

Viewing the LED 1 and 2 (D72 and D75) alarm displays

LED 1

 

LED 2

 

Alarm contents

 

 

 

 

 

 

 

 

 

 

 

 

Alarm display

 

 

Alternating

 

LED 1 blinks M times, then LED 2 blinks N times. The cycle then repeats.

 

 

M = 2: P alarm 3: H alarm 4: E alarm 5: F alarm 6: L alarm

 

 

 

 

 

 

 

 

 

 

N = Alarm No.

 

 

 

 

 

 

Example: LED 1 blinks 2 times, then LED 2 blinks 17 times. The cycle then repeats.

 

 

 

 

Alarm is “P17.”

 

 

 

 

 

 

 

( : Blinking)

 

 

 

 

 

 

 

 

 

 

 

Possible cause of malfunction

 

Alarm

 

message

Serial

 

Remote controller is detecting

Error in receiving serial communication signal.

 

commu-nication

error signal from indoor unit.

(Signal from main indoor unit in case of group control)

<E01>

errors

 

 

 

Ex: Auto address is not completed.

 

Mis-setting

 

 

 

 

 

 

 

 

Error in transmitting serial communication signal.

<E02>

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Indoor unit is detecting error signal from remote controller (and system controller).

<<E03>>

 

 

 

 

 

 

 

 

 

 

Indoor unit is detecting error

Error in receiving serial communication signal.

 

 

 

 

signal from outdoor unit.

When turning on the power supply, the number of connected

E04

 

 

 

 

 

indoor units does not correspond to the number set. (Except R.C.

 

 

 

 

 

 

address is “0.”)

 

 

 

 

 

 

 

 

 

 

 

 

 

Error of the outdoor unit in receiving serial communication signal

<E06>

 

 

 

 

 

from the indoor unit.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Improper setting of indoor unit or

Indoor unit address setting is duplicated.

E08

 

 

 

remote controller.

 

 

 

 

 

Remote controller address connector (RCU. ADR) is duplicated.

<<E09>>

 

 

 

 

 

 

 

 

 

 

(Duplication of main remote controller)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

During auto. address setting,

Starting auto. address setting is prohibited.

 

 

 

 

number of connected units does

This alarm message shows that the auto address connector CN100

E12

 

 

 

not correspond to number set.

is shorted while other RC line is executing auto address operation.

 

 

 

 

 

 

Error in auto. address setting. (Number of connected indoor units

E15

 

 

 

 

 

is less than the number set)

 

 

 

When turning on the power

 

 

 

 

Error in auto. address setting. (Number of connected indoor units

E16

 

 

 

supply, number of connected

 

 

 

is more than the number set)

 

 

 

units does not correspond to

 

 

 

 

No indoor unit is connected during auto. address setting.

E20

 

 

 

number set.

 

 

 

 

 

 

 

 

(Except R.C. address is “0.”)

Error of outdoor unit address setting.

E25

 

 

 

 

 

 

 

 

 

 

Indoor unit communication error

Error of main indoor unit in receiving serial communication signal

E18

 

 

 

of group control wiring.

from sub indoor units.

 

 

 

 

Continued

79

Page 79
Image 79
Sanyo 85464359981002 installation instructions Led

85464359981002 specifications

The Sanyo 85464359981002 is a versatile and innovative product that has garnered attention in its respective market for its blend of performance, efficiency, and advanced technology features. This product is designed to cater to the demanding needs of consumers who prioritize quality and functionality in their daily lives.

One of the standout features of the Sanyo 85464359981002 is its energy efficiency. It is engineered to operate with minimal energy consumption while still delivering exceptional performance. This aspect is particularly significant given the growing concerns regarding energy usage and environmental sustainability. The model incorporates state-of-the-art technologies that optimize power usage without compromising on functionality.

The design of the Sanyo 85464359981002 focuses on user-friendliness and convenience. This product is equipped with an intuitive interface that makes it simple for users of all experience levels to operate and adjust settings as needed. Additionally, the lightweight construction enhances portability, allowing for easy transportation from one location to another.

Another notable characteristic is the advanced materials used in its construction. The Sanyo 85464359981002 is built to withstand the rigors of everyday use, ensuring durability and longevity. This quality makes it a smart investment for consumers looking for a reliable solution that won't require frequent replacements.

Connectivity is also a key feature of the Sanyo 85464359981002. It includes multiple ports and connectivity options that allow users to integrate the product with a variety of devices. This versatility enables seamless interaction with smartphones, tablets, and other technologies, ensuring that the Sanyo 85464359981002 can adapt to different environments and user needs.

The performance capabilities of the Sanyo 85464359981002 are impressive, emphasizing precision and speed. Whether it's delivering high-quality output or ensuring rapid operation, this product stands out in its field. These performance enhancements are supported by advanced technology that streamlines processes and improves overall productivity.

In conclusion, the Sanyo 85464359981002 exemplifies a well-rounded product that embodies modern design, energy efficiency, durability, and adaptability. Its array of features and advanced technologies makes it an attractive choice for consumers seeking quality and reliable performance in their daily routines.