Toshiba RAV-SM1606BT-E, RAV-SM406BT-TR, RAV-SM1406BT-E, RAV-SM1606BT-TR Tcj, Tcn, Tc n, Conditions

No.

8

Item	Outline of specifications			Remarks
Freeze preventive control	1) The cooling operation (including Dry operation) is			Tcj:
(Low temperature release)	performed as follows based on the detected			Indoor heat exchanger
	temperature of Tc sensor or Tcj sensor.
				sensor temperature
	When [J] zone is detected for 6 minutes
	(Following figure), the commanded frequency is
	decreased from the real operation frequency.
	After then the commanded frequency changes
	every 30 seconds while operation is performed in
	[J] zone.
	In [K] zone, time counting is interrupted and the
	operation is held.
	When [ I ] zone is detected, the timer is cleared
	and the operation returns to the normal operation.
	If the commanded frequency becomes S0
	because the operation continues in [J] zone, the
	return temperature A is raised from 5°C to 12°C
	until [ I ] zone is detected and the indoor fan
	operates with [L] mode.
	˚C
	5	I	A
		K
	2	J
	In heating operation, the freeze-preventive control			Tcn:
	works if 4-way valve is not exchanged and the			Tc temperature when 5
	following conditions are satisfied.			minutes elapsed after
	(However the temperature for J zone dashing control			activation
	is changed from 2°C to –5°C.)			Tc (n – 1):
	<Conditions>
				Tc temperature at start
	• When c or d is established 5 minutes after
				time
	activation.

cTcn ≤ Tc (n – 1) – 5

dTcn < Tc (n – 1) – 1 and Tcn ≤ Ta < 5°C

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