Toshiba RAV-RM2801DTP Series Service Manual page 28

No. Item
3 Room temp. 2) Using the CODE No. 06, the setup temperature in heating
control
(Continued)
4 Automatic 1) Based on the difference between TA and TS, the
capacity control
2) Cooling operation
(GA control)
3) Heating operation
4) Dry operation
Note) When LOW is set up, the maximum frequency is
5 Automatic 1) The judgment of selecting Cooling/Heating mode is
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 at automatic heating, see Item 3.
Outline of specifications
operation can be corrected.
SET DATA 0
Setup temp.
+0°C
correction
Setting at shipment
2
SET DATA
operation frequency is instructed to the outdoor unit.
Every 90 seconds, GA calculates TA-TS, the fluctuation,
and the correction amount of compressor frequency
(n) – (n) : Room temp. difference
TA TS
n : Detecting counts
(n) : Room temp.fluctuation
TA (n-1) – TS
n – 1 : Detecting counts of 90 seconds before
Every 1 minute (60 sec.), GA calculates TA-TS, the
fluctuation, and the correction amount of compressor
frequency.
TS (n) – TA (n) : Room temp. difference
n : Detecting counts
(n – 1): Room temp.fluctuation
TA (n) – TA
n – 1 : Detecting counts of 1 minute before
The frequency correction control is same as those of the
cooling operation.
However the maximum frequency is limited to approxi-
mately "S6".
limited to approximately "SB".
carried out as shown belows
When TA exceeds Tsh+1.5°C after 10 minutes at
thermostat off, the operation mode
TA ˚C Cooling
+1.5
TSC or TSH
(Cooling OFF)
–1.5
When TA is lower Tsc-1.5°C after 10 minutes at thermostat off, the operation mode
changes COOL to HEAT mode.
2 4 6
+2°C +4°C +6°C
(Cooling ON)
Heating
- 28 -
Remarks
Shift of suction
temperature in heating
operation
Maximum frequency code:
S0-SF (16 steps)
TSC : Setup temp. in
cooling operation
TSH : Setup temp. in
heating operation
+ temp. correction of
room temp. control