Toshiba MMU-AP0091H Refrigerant Piping Systematic Diagram in System, Selection of operation mode

5. SYSTEM REFRIGERANT CYCLE DRAWING

5-1. Refrigerant Piping Systematic Diagram in System

Selection of operation mode

For the selection of each operation mode, refer to the below table:

“Stop Once” this means the system does not operate for 3 minutesafter operation before update has stopped.

	After update
All cooling operation	Mainly cooling, partly	Mainly heating, partly	All heating operation
(OFF)	heating cooperation	cooling operation	(ON)
	(ON)	(ON)

All cooling operation		Operation continues	Operation continues	Stop Once
(OFF)		(OFF à ON)	(OFF à ON)	(OFF à ON)
Mainly cooling,	Operation continues		Operation continues	Operation continues
partly heating
	(ON à OFF)		(As ON)	(As ON)
cooperation (ON)
Before
update
Mainly heating,	Stop Once	Operation continues		Operation continues
partly cooling
	(ON à OFF)	(As ON)		(As ON)
operation (ON)
All heating operation	Stop Once	Operation continues	Operation continues
(ON)	(ON à OFF)	(As ON)	(As ON)

Note) Phrases in the parentheses of the table indicate the status of the 4-way valve.

ON-OFF list of Flow Selector Unit (FS Unit) valve

		Outline of control valve output of FS unit (Basic operation)
	Indoor operation mode
		SVD	SVDD	SVS	SVSS
		(High pressure	(Pressure valve	(Low pressure	(Reducing valve
		circuit valve)	<For delay>)	circuit valve)	<For delay>)
1.	Stop (Remote controller OFF)	OFF	OFF	OFF	ON
	<All system stop>	<OFF>	<OFF>	<OFF>	<OFF>
2.	Cooling thermo-OFF	OFF	OFF	OFF	ON
3.	Cooling thermo-ON	OFF	OFF	ON	ON
4.	Heating thermo-OFF
		ON	OFF	OFF	OFF
5.	Heating thermo-ON
6.	“E04” error is being detected	OFF	ON	OFF	OFF

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