Sanyo SAP-CMRV1926EH Control/conditions, Unit operation, Explanation, Heat, Table, Stop

	Control/conditions	Unit operation	Explanation
HEAT	When defrost operation	Non-stop defrost	Defrost operation begins based on outdoor heat
	begins, frost has formed		exchanger temperature and outdoor air
	on the outdoor unit	Indoor fan : Stopped	temperature conditions.
	(when the ambient air		Non-stop defrost (Refer to Fig. 1)
	temperature is low).	Outdoor fan : Stopped	1. After HEAT operation begins, the temperature
		Compressor : 80 Hz	of the outdoor heat exchanger is at or below the
		Solenoid valve (for hot gas bypass): ON	L1 line for 35 minutes.
			(If outdoor air temperature is less than –3 °C,
		4-way valve : Remains ON
			the time is 48 minutes)
		Operation lamp : Red and orange ON	2. After HEAT operation begins, the temperature
		alternately	of the outdoor heat exchanger is at or below the
			L2 line for 120 minutes.
			The 4-way valve remains ON during defrost.
			The outdoor fan stops and the solenoid
			valve turns ON, allowing the refrigerant to
			bypass the indoor unit.
			The operating frequency during defrost is
			80 Hz. (Frequency is lowered if the current
			peak cut-off function is activated.)
			The maximum length of a single defrost
			operation is 12 minutes.
			For the outdoor heat exchanger temperature
			conditions for ending defrost, refer to Table 1.
	Defrost release	Indoor fan turns ON.
		After 10 seconds, the solenoid valve
		(for hot gas bypass) turns OFF.
		When the cold air feel has disappeared,
		the indoor fan starts and gradually increases
		speed until it reaches the set speed.
	STOP	All indicator lamps turn OFF. The indoor and
	[Clean defrost]	outdoor units stop.
	Defrost is performed
	when the outdoor unit is
	stopped, and the
	temperature of the
	outdoor unit coil is at or
	below the L1 line.
	(Refer to Fig. 1.)
	Operation is restarted	Starts operating in the same operating mode	Within 4 hours after operation was stopped, it is
	within 4 hours (only when	(HEAT) and with the same temperature	assumed that there has been no significant
	AUTO mode is selected	settings as before operation was stopped.	change in the indoor and outdoor temperatures,
	with the remote		and the previous conditions (HEAT) are stored.
	controller).
	Operation starts after 4	New operation begins based on the
	hours or more have	temperature conditions at the time the
	passed.	ON/OFF button is pressed.

Outdoor heat exchanger temperature

(–20)

L2

L1

0Outdoor air temperature

(– 6) (– 7)

(– 24) (– 25)

Temperature of releasing

Defrost operation time	Less than 2 minutes	2 minutes or more
Heat exchanger	No releasing	14 °C or higher (*1)
temperature for
releasing defrosting

*1 The temperature for releasing of defrosting is (20 °C) or higher when the outdoor air temperature is less than 0 °C.

Fig. 1 Table 1

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