<HEAT>

Preset

°C

 

 

0

L

temp.

0.5

 

temp.)

1

*1

1.5

*2

2

 

8-4. Cool air discharge preventive control

In heating operation, the indoor heat exchanger restricts revolving speed of the fan motor to prevent a cold draft. The upper limit of the revolving speed is shown in Fig. 8-4-1 and Table 8-4-1.

(Preset

 

M+

 

 

temp.)

5.0

 

5.5

 

(Room

H

[FAN AUTO]

 

 

 

NOTE :

*1, *2 : The values marked with *1 and *2 are calculated and controlled by the difference in motor speed between M+ and L.

 

46

34

 

45

33

 

33

21

 

32

20

*2

A+4

A+4

 

A8

A8

 

 

 

 

*6

*5

 

 

 

Manual

(One of AUTO 5 steps)

*4 LH (Up to setting

SUL*3 speed)

SUL*1

Stop

Fig. 8-3-2

Table 8-3-1

 

 

RAV-SM560XT-E

RAV-SM800XT-E

MODEL

 

 

 

 

Motor speed

Air flow level

Motor speed

Air flow level

 

 

(rpm)

 

(m3/h)

(rpm)

(m3/h)

Cooling

HIGH

1060

 

800

1190

900

 

 

 

 

 

 

 

and

MED

950

 

690

1010

750

 

 

 

 

 

 

 

Fan only

LOW

800

 

580

850

650

 

HIGH

1120

 

830

1300

980

Heating

MED

970

 

730

1070

800

 

LOW

820

 

600

860

650

 

 

 

 

 

 

 

 

 

LOW+

=

LOW+MED

 

 

 

 

 

2

 

 

 

 

MED+

= MED+HIGH

 

 

 

 

 

2

 

 

NOTES :

*1: The fan stops for 2 minutes after thermostat-OFF.

*2: A is 24°C when the preset temperature is 24°C or more and A is the preset temperature when it is under 24°C.

*3: SUL means Super Ultra Low.

*4: Calculated from difference in motor speed between SUL and HIGH.

Fig. 8-4-1 Cold draft preventing control

*5 and *6:

Table 8-4-1

Fan

*5

 

*6

 

speed

 

Starting period

 

Stabilized period

 

 

 

 

 

AUTO

Up until 12 minutes

From 12 to 25 minutes

 

 

passed after starting

 

passed after starting

 

the unit

 

the unit and room

 

From 12 to 25 minutes

 

temperature is

 

 

passed after starting

 

between preset

 

 

the unit and room

 

temperature and 3°C

 

 

temperature is 3°C

 

lower than preset

 

 

lower than preset

 

temperature

 

 

temperature

25 minutes or more

 

 

 

 

passed after starting

 

 

 

 

the unit

Manual

Room temperature

Room temperature

(L – H)

 

< Preset temperature

 

Preset temperature

 

 

–4°C

 

–3.5°C

– 23 –

Page 25
Image 25
Toshiba RAV-SM560XT-E, RAV-SM800XT-E service manual Cool air discharge preventive control, Cold draft preventing control