Toshiba RAV-SP454AT-E Outline of specifications, Remarks, limited to approximately “SB”

No.

Item

Outline of specifications

Remarks

3

Room temp.

2)

Using the Item code 06, the setup temperature in heating Shift of suction

control

operation can be corrected.

temperature in heating

(Continued)

operation

Setup data

0

2

4

6

Setup temp. correction

+0°C

+2°C

+4°C

+6°C

Setting at shipment

Setup data

2

4

Automatic

1)

Based on the difference between Ta and Ts, the operation

capacity control

frequency is instructed to the outdoor unit.

(GA control)

2)

Cooling operation

Every 90 seconds, the room temperature difference

between temperature detected by Ta and Ts and the

varied room temperature value are calculated to obtain

the correction value of the frequency command and then

the present frequency command is corrected.

Ta (n) – Ts (n) : Room temp. difference

n

: Counts of detection

Ta (n-1) – Ts (n)

: Varied room temp. value

n – 1

: Counts of detection of 90 seconds before

3)

Heating operation

Every 1 minute (60 sec.), the room temperature differ-

ence between temperature detected by Ta and Ts and the

varied room temperature value are calculated to obtain

the correction value of the frequency command and then

the present frequency command is corrected.

Ts (n) – Ta (n)

: Room temp. difference

n

: Counts of detection

Ta (n) – Ta (n – 1) : Varied room temp. value

n – 1

: Counts of detection of 1 minute before

4)

Dry operation

The frequency correction control is same as those of the

cooling operation.

However the maximum frequency is limited to approxi-

mately “S6”.

Note) When LOW is set up, the maximum frequency is

limited to approximately “SB”.

5

Automatic

1)

The judgment of selecting COOL/HEAT is carried out as

cooling/heating

shown below. When +1.5 exceeds against Tsh 10 minutes

Tsc: Setup temp. in

control

and after thermo.-OFF, heating operation (Thermo. OFF)

cooling operation

exchanges to cooling operation. Description in the

Tsh: Setup temp. in

parentheses shows an example of cooling ON/OFF.

heating operation

Ta

Cooling

+ temp. correction of

(˚C)

room temp. control

+1.5

(Cooling ON)

or Tsc

Tsh

-1.5

(Cooling OFF)

Heating

When –1.5 lowers against Tsc 10 minutes and after thermo. OFF, cooling operation (Thermo. OFF) exchanges to heating operation.

2)For the automatic capacity control after judgment of cooling/heating, see Item 4.

3)For temperature correction of room temp. control in automatic heating, see Item 3.

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