Toshiba RAV-SM1603AT-E Service Manual page 54

No. Item
3 Room temp. 1) Adjustment range: Remote controller setup temperature (°C)
control
2) Using the Item code 06, the setup temperature in heating
4 Automatic 1) Based on the difference between Ta and Ts, the operation
capacity control
(GA control) 2) Cooling operation
3) Heating operation
5 Automatic 1) The judgment of selecting COOL/HEAT is carried out as
cooling/
heating control
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.
Outline of specifications
COOL
Wired type 18 to 29
Wireless type 18 to 30
operation can be corrected.
Setup data
Setup temp. correction
Setting at shipment
Setup data 2
frequency is instructed to the outdoor unit.
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
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
shown below. When +1.5 exceeds against Tsh 10 minutes
and after thermo.-OFF, heating operation (Thermo. OFF)
exchanges to cooling operation. Description in the
parentheses shows an example of cooling ON/OFF.
Ta
Cooling
(˚C)
+1.5
Tsc
or
Tsh
(Cooling OFF)
-1.5
When –1.5 lowers against Tsc 10 minutes and after thermo. OFF, cooling operation
(Thermo. OFF) exchanges to heating operation.
HEAT AUTO
18 to 29 18 to 29
16 to 30 17 to 27
0 2 4
+0°C +2°C +4°C +6°C
(Cooling ON)
Heating
– 54 –
Remarks
Shift of suction tempera-
ture in heating operation
6
Tsc: Setup temp. in
cooling operation
Tsh: Setup temp. in
heating operation
+ temp. correction of
room temp. control