No.

Item

Outline of specifications

Remarks

7

Freeze preventive

1) The cooling operation (including Dry operation) is

Tcj : Indoor heat

 

control

performed as follows based on the detected tem-

exchanger sensor

 

(Low temperature

perature of Tc sensor or Tcj sensor.

temperature

 

release)

When [J] zone is detected for T1 minutes (Following

 

 

 

figure), the commanded frequency is decreased

 

 

 

from the real operation frequency. After then the

 

 

 

commanded frequency changes every 30 seconds

 

 

 

while operation is performed in [J] zone.

 

 

 

 

 

 

 

 

 

 

 

 

T1

 

 

 

 

 

 

 

 

 

 

 

 

Normal

6 minutes

 

 

 

 

 

 

 

 

 

 

 

 

Twin

6 minutes

 

 

 

 

 

 

 

 

 

In [K] zone, time counting is interrupted and the operation is held.

When [I] zone is detected, the timer is cleared and the operation returns to the normal operation.

If the commanded frequency becomes S0 because the operation continues in [J] zone, the return temperature A is raised from 5°C to 12°C until [I] zone is detected and the indoor fan operates with [L] mode.

( C)

 

 

 

5

 

I

A

 

 

 

 

K

2

J

In heating operation, the freeze-preventive control works if 4-way valve is not exchanged and the condition is satisfied.

8 High-temp release

1) The heating operation is performed as follows based

 

control

 

on the detected temperature of Tc sensor.

 

 

 

•

When [M] zone is detected, the commanded

 

 

 

 

frequency is decreased from the real operation

 

 

 

 

frequency. After then the commanded frequency

 

 

 

 

changes every 30 seconds while operation is

 

 

 

 

performed in [M] zone.

 

 

 

•

In [N] zone, the commanded frequency is held.

 

 

 

•

When [L] zone is detected, the commanded

 

 

 

 

frequency is returned to the original value by

 

 

 

 

approx. 6Hz every 60 seconds.

 

 

Setup at shipment

Tc ( C)

 

 

 

 

 

 

A

 

 

M

 

 

 

Control temp (°C)

 

 

 

 

 

 

 

 

N

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A

B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B

 

 

 

 

 

56 (54)

52 (52)

L

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NOTE :

 

 

 

 

 

 

 

 

 

 

 

When the operation has started or when Tc became

Same when thermostat is

 

lower than 30°C after start of the operation, tempera-

 

turned off.

 

ture is controlled between values in parentheses of A

 

 

 

and B.

 

 

 

 

 

 

 

– 53 –

Page 52 Page 54
Page 53
Image 53
Toshiba RAV-SM800BT-E, RAV-SM800AT-E, RAV-SM800UT-E, RAV-SM560UT-E, RAV-SM560AT-E, RAV-SM560BT-E service manual Tc C
Page 52 Page 54

RAV-SM800BT-E, RAV-SM560BT-E, RAV-SM560AT-E, RAV-SM560UT-E, RAV-SM800UT-E specifications

Toshiba offers a range of innovative air conditioning units designed for optimal performance and efficiency, including the RAV-SM800UT-E, RAV-SM560UT-E, RAV-SM800AT-E, RAV-SM560BT-E, and RAV-SM800BT-E models. Each of these units is part of Toshiba's commitment to quality air conditioning solutions that cater to both residential and commercial spaces.

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