Toshiba MMU-AP0091H service manual TCB-AX21E

No.	Item		Outline of specifications	Remarks
8	Recovery control	(1)	The indoor unit which stops operation, thermostat is OFF,	• Recovery operation is
	for cooling		or operates in FAN mode opens PMV of the indoor unit by	usually executed every 2
	refrigerant and oil		the specified opening degree when cooling refrigerant or oil	hours.
			recovery signal is received from the outdoor unit.
		(2)	Drain pump of 4-way air discharge cassette type and
			concealed duct type operate during recovery control mode.
9	Recovery control	The indoor unit which stops operation, thermostat is OFF, or		• In the indoor unit which
	for heating	operates in FAN mode performs the following controls when		thermostat is OFF, or
	refrigerant and oil	the heating refrigerant/Oil recovery signal is received from the		operates in FAN mode,
		outdoor unit.		“ ” lamp goes on.
		1) Opens PMV of the indoor unit by the specified opening		• Recovery operation is
			degree.	usually executed every
		2) Stops the fan.		1 hour.
		3)	Only 4-way Air Discharge Cassette type air conditioner
			rotates the indoor fan with intermittent operation for
			approximately 1 minute after recovery control.
		4)	Only 4-way Air Discharge Cassette type air conditioner
			rotates the indoor fan with intermittent operation for
			approximately 1 minute after recovery control as the
			outdoor unit.
		5) After recovery control, drain pump of 4-way air discharge
			cassette type and concealed duct type will operate.
10	Short intermittent	(1)	For 5 minutes after the operation has started, the operation
	operation		is continued even if entering thermostat-OFF condition.
	compensation	(2)	However, if the thermostat has been turned off by changing
	control		the set up temp., the thermostat is OFF with even the
			above condition. The protective control has priority.
11	Drain pump	(1)	During “COOL” operation (including DRY operation), the	Check code [P10]
	control		drain pump operates.
		(2)	While the drain pump operates, if the float switch works,
			the drain pump continues operation and a check code is
			displayed.
		(3)	While the drain pump stops, if the float switch works, turn
			off the capacity demand command, stop the operation, and
			operate the drain pump. If the float switch continues
			operating for approx. 5 minutes, the operation stops and
			the check code is displayed.
		(4)	In heating operation, if humidifier “provided” is judged,
			compressor “ON”, compressor “ON”, fan “ON”, and MAX
			(TC2, TCJ) > 33°C, the drain pump operates.
12	Elimination of	(1)	When the air conditioner stops in the “HEAT” mode, drive
	remaining heat		the indoor fan with “LOW” mode for approx. 30 seconds.
13	Auto louver	(1)	When the louver signal has been received from the remote
	control		controller, the louver operates if the indoor fan is operating.
		(2)	In 4-way Air Discharge Cassette type, the discharge louver
			automatically directs downward if the operation stops.
		(3)	In 4-way Air Discharge Cassette type, the discharge louver
			directs upward if the heating operation is being prepared.
14	Filter sign display	(1)	The operation time of the indoor fan is integrated and
	(None in wireless		stored in memory, and the filter exchange signal is sent to
	type)		the remote controller to display on the remote controller
	∗ Provided in the		LCD after the specified time.
	separately laid	(2)	When the filter reset signal is received form the remote
	type		controller, time of the integrated timer is cleared. In this
	TCB-AX21E.		time, if the specified time has passed, the measured time is
			reset and LCD display disappears.

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