FILE NO. SVM-03008

2)

Defrost operation

8-2-4. Automatic operation

 

 

 

 

 

 

 

 

Operation of the compressor is stopped once,

(1) As shown in Fig. 8-2-9, the operation mode

 

turn off power coupler for 4-way valves after

 

 

(COOL, DRY, HEAT) is selected according to the

 

10 seconds, and then exchange the 4-way

 

 

 

outside temperature and room temperature when

 

valves.

 

 

 

the operation has started.

 

 

 

 

 

 

 

 

After 20 seconds, restart operation of the

 

 

 

 

 

 

 

 

 

 

The operation in Fan mode continues until an

 

compressor. Turn off the outdoor fan just when

 

 

 

operation mode is selected.

 

 

 

 

 

 

 

 

the compressor stopped.

 

 

 

 

 

 

 

 

 

 

If the room temperature is 20° C or higher when

 

If temperature of the indoor heat exchanger

 

 

 

“AUTO” operation started within 2 hours after

 

lowered than 38° C, stop the indoor fan.

 

 

 

“HEAT” operation had stopped, select an operation

3)

Defrost reset

 

 

mode after Fan operation of ultra low fan.

 

 

 

 

Resetting operation from defrost to heating is

 

In AUTO operation, the set temperature of each

 

performed when anyone of the following

 

operation can be corrected by the remote

 

 

 

 

conditions is satisfied.

 

controller in the range of 17 to 30° C.

 

 

 

 

a. Temperature of the outdoor heat exchanger

(2) After selecting the operation mode (COOL, DRY,

 

rose to +8° C or higher.

 

 

HEAT), select an operation mode again when a

 

b. A status that temperature of the outdoor

 

 

 

status that the compressor was turned off by the

 

heat exchanger is +5° C or higher continued

 

 

 

room temperature or outside air temperature

 

for 80 seconds.

 

 

 

continues for 15 minutes.

 

 

 

 

 

 

 

 

c. Defrost operation continued for 15 minutes.

 

 

 

 

 

 

 

 

 

(3) Powerful Cool mode control

 

 

 

 

 

 

 

In resetting defrost operation, the compressor

 

 

 

 

 

 

 

 

When the outside temperature is above 32° C and

stops for 50 seconds if defrost has started under

 

 

indoor temperature is above 28° C, select Cool

condition a. to c. in item1), but the compressor is

 

 

mode control. In Cool mode, the air flow louver

reset to heating operation keeping operated if

 

 

directs downward. When the room temperature

defrost has started under condition d. in item 1).

 

 

gains access to the set temperature, it becomes

(5) Louver control

 

 

cool memory position.

 

 

 

 

 

 

 

 

 

When the compressor is turned off by high-temp.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

release control, the vertical air flow louvers close

TA

 

 

 

 

 

 

 

 

 

Powerful Cooling/Drying with

 

 

 

 

 

 

 

once and then return to the position of previous

 

 

 

 

 

 

 

 

 

 

setting on remote controller

28

 

 

 

 

 

 

 

 

 

Ts = 25° C

 

 

 

time.

26

 

 

 

 

 

 

 

 

 

Cooling/Drying with setting

 

 

 

 

 

 

 

 

 

 

 

on remote controller

 

 

24

 

 

 

 

 

 

 

 

 

Ts = 25° C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

23

 

 

 

 

 

 

 

 

 

Monitoring

 

 

 

 

 

 

Heating with setting

 

 

 

 

 

 

 

 

(Follow to the Fan control in

 

 

 

on remote controller

 

 

 

 

 

 

 

 

previous mode when being

 

 

20

Ts = 25° C

 

 

 

 

 

 

 

 

selected again.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ts correction by

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

15 18

24

32

To

 

 

 

outside temperature

2

 

 

1

 

0

 

+1

 

 

 

 

( To)

 

 

 

Fig. 8-2-9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

– 30 –

Page 31
Image 31
Toshiba RAS-13UKV-E2, RAS-13UAV-E2 service manual Automatic operation, Time

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