Toshiba RAV-SM1603ATZ-E, RAV-SM1603DT-A service manual 54, Item, Outline of specifications, Remarks

No.	Item		Outline of specifications								Remarks
3	Room temp.	1)	Adjustment range: Remote controller setup temperature (°C)
	control
				COOL		HEAT			AUTO
			Wired type	18 to 29		18 to 29		18 to 29
			Wireless type	18 to 30		16 to 30		17 to 27
		2)	Using the Item code 06, the setup temperature in heating Shift of suction tempera-
			operation can be corrected.								ture in heating operation
			Setup data		0	2	4			6
			Setup temp. correction		+0°C	+2°C	+4°C			+6°C
			Setting at shipment
			Setup data	2
4	Automatic	1)	Based on the difference between Ta and Ts, the operation
	capacity control		frequency is instructed to the outdoor unit.
	(GA control)	2)	Cooling operation

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

3)Heating operation

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
5 Automatic	1) The judgment of selecting COOL/HEAT is carried out as
cooling/	shown below. When +1.5 exceeds against Tsh 10 minutes					Tsc: Setup temp. in
heating control	and after thermo.-OFF, heating operation (Thermo. OFF)
						cooling operation
	exchanges to cooling operation. Description in the
						Tsh: Setup temp. in
	parentheses shows an example of cooling ON/OFF.
						heating operation
	Ta	Cooling				+ temp. correction of
						room temp. control
	(˚C)
	+1.5
					(Cooling ON)
	or Tsc
	Tsh
	-1.5			(Cooling OFF)
				Heating

When –1.5 lowers against Tsc 10 minutes and after thermo. OFF, cooling operation (Thermo. OFF) exchanges to heating operation.

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.

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