FILE NO. SVM-07008

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Item

 

 

Operation flow and applicable data, etc.

 

Description

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3.

Capacity

The cooling or heating capacity depending on the load is

1) The difference between set

 

control

adjusted.

 

 

 

 

 

 

temperature on remote controller

 

 

 

 

 

According to difference between the setup value of tempera-

(Ts) and room temperature (Ta)

 

 

 

 

 

is calculated.

 

 

 

 

 

ture and the room temperature, the capacity is adjusted by

 

 

 

 

 

 

 

 

 

 

 

 

the compressor revolution.

 

 

 

 

 

 

2) According to the temperature

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

difference, the correction value of

 

Remote controller

 

 

 

 

 

Indoor unit

Hz signal which determines the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

compressor speed is set up.

 

Set temp. (Ts)

 

 

 

 

 

 

Room temp. (Ta)

 

 

 

 

 

 

 

 

 

3) The rotating position and speed

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

of the motor are detected by the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

electromotive force occurred on

 

 

 

 

 

 

 

 

Ts

–Ta

 

 

 

 

 

 

the motor winding with operation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

of the compressor.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4) According to the difference

 

 

 

 

 

 

 

Correction of Hz signal

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

resulted from comparison of the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

correction value of Hz signal with

 

 

 

 

 

Detection of electromotive force

 

 

the present operation Hz, the

 

 

 

 

 

 

 

inverter output and the commuta-

 

 

 

 

 

 

of compressor motor winding

 

 

 

 

 

 

 

 

 

 

tion timing are varied.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5) Change the compressor motor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Detection of motor speed and rotor position

 

 

speed by outputting power to the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

compressor.

 

 

 

 

Correction value of Hz

signal ≤ Operating Hz

* The contents of control

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

operation are same in cooling

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

operation and heating

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Inverter output change

 

 

 

 

 

 

operation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Commutation timing change

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Change of compressor speed

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.

Current release

This function prevents troubles on the electronic parts of the

1) The input current of the outdoor

 

control

compressor driving inverter.

 

 

 

 

 

unit is detected in the inverter

 

 

 

 

 

This function also controls drive circuit of the compressor

section of the outdoor unit.

 

 

 

 

 

 

 

 

 

 

 

 

speed so that electric power of the compressor drive circuit

2) According to the detected

 

 

 

 

 

does not exceed the specified value.

outdoor temperature, the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

specified value of the current is

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

selected.

 

Outdoor unit inverter main

 

 

 

 

Outdoor temp. To

 

 

 

 

 

 

3) Whether the current value

 

circuit control current

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

exceeds the specified value or

 

 

 

 

 

 

 

 

 

 

 

Setup of current release point

 

not is judged.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4) If the current value exceeds the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Operating

current ≤

 

High

 

 

 

 

 

 

 

specified value, this function

 

 

 

 

 

 

 

 

 

reduces the compressor speed

 

 

 

Reduce compressor speed

 

 

 

 

 

 

 

 

 

Setup

value

 

 

 

 

 

 

and controls speed up to the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Low

 

 

 

 

 

 

 

 

 

 

 

 

closest one commanded from the

 

 

 

 

 

 

 

 

 

Current decrease

indoor unit within the range

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

which does not exceed the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Capacity control continues.

 

 

 

 

 

 

 

 

specified value.

 

 

 

 

 

 

 

 

 

 

 

Outdoor temp.

 

 

Cooling current release value

Heating current release value

 

 

 

 

 

 

 

 

 

10SAV-E

 

 

 

 

10SAV-E

 

 

 

 

 

 

 

 

 

 

10SAV-A

 

 

 

 

10SAV-A

 

 

 

45°C

 

 

 

 

3.60A

 

 

 

 

7.72A

 

 

 

40°C

 

 

44°C

 

 

5.17A

 

 

 

 

 

 

 

 

 

16°C

 

 

39°C

 

 

5.17A

 

 

 

 

 

 

 

 

 

11°C

15.5°C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10.5°C

 

 

 

 

 

 

 

 

 

9.26A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10.80A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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