4. cool air discharge preventive control – Toshiba RAV-SM800XT-E User Manual

Page 25

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background image

– 23 –

LOW

+

=

MED

+

=

LOW+MED

2

MED+HIGH

2

MODEL

RAV-SM560XT-E

RAV-SM800XT-E

Motor speed Air flow level Motor speed Air flow level

(rpm)

(m

3

/h)

(rpm)

(m

3

/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

[FAN AUTO]

0.5

1

1.5

2

*1
*2

5.0

5.5

0

Preset
temp.

M+

H

L

°

C

(Room temp.)

(Preset temp.)

<HEAT>

NOTE :
*1, *2 : The values marked with *1 and *2 are

calculated and controlled by the difference in
motor speed between M+ and L.

Fig. 8-3-2

Table 8-3-1

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.

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

A+4 A+4
A

8

A

8

46
45

34
33

33

21

32

20

*2

*6

*5

Manual
(One of
5 steps)

L

H

(Up to
setting
speed)

AUTO

*4

SUL*

3

SUL*1
Stop

Fan

*5

*6

speed

Starting period

Stabilized period

AUTO

Up until 12 minutes
passed after starting
the unit

From 12 to 25 minutes
passed after starting
the unit and room
temperature is 3

°

C

lower than preset
temperature

Manual

Room temperature

(L – H)

< Preset temperature

–4

°

C

From 12 to 25 minutes
passed after starting
the unit and room
temperature is
between preset
temperature and 3

°

C

lower than preset
temperature

25 minutes or more
passed after starting
the unit

Room temperature

Preset temperature

–3.5

°

C

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