Toshiba RAS-B10GKVP-E Operation flow and applicable data, etc, Description, In heating operation

Item

6.Release protective control by tempera- ture of indoor heat exchanger

temperature	7˚C
exchanger
	6˚C
Indoor heat	5˚C

temperature	55˚C
exchanger	50˚C
heatIndoor
	46˚C

Operation flow and applicable data, etc.		Description
<In cooling/dry operation>		1) When temperature of the indoor
(Prevent-freezing control for indoor heat exchanger)		heat exchanger drops below 5°C,
		the compressor speed is
In cooling/dry operation, the sensor of indoor heat
		reduced. (P zone)
exchanger detects evaporation temperature and
		2) When temperature of the indoor
controls the compressor speed so that temperature of
		heat exchanger rises in the
the heat exchanger does not exceed the specified
		range from 6°C to under 7°C, the
value.
		compressor speed is kept.
		(Q zone)
Usual cooling capacity control		3) When temperature of the indoor
		heat exchanger rises to 7°C or
R		higher, the capacity control
	When the value is	operation returns to the usual
		control in cooling operation.
Q	in Q zone, the
		(R zone)
	compressor speed
	is kept.
P
Reduction of compressor speed

<In heating operation>		1) When temperature of the indoor
(Prevent-overpressure control for refrigerating cycle)		heat exchanger rises in the
		range from 50°C to 55°C, the
In heating operation, the sensor of indoor heat ex-
		compressor speed is kept.
changer detects condensation temperature and controls
		(Q zone)
the compressor speed so that temperature of the heat
		When temperature of the indoor
exchanger does not exceed the specified value.
		heat exchanger drops in the
		range from 46°C to under 55°C,
		the compressor speed is kept.
Reduction of compressor speed		(Q zone)
P		2) When temperature of the indoor
		heat exchanger rises to 55°C or
		higher, the compressor speed is
	When the value is	reduced. (P zone)
Q		3) When temperature of the indoor
	in Q zone, the
	compressor speed	heat exchanger does not rise to
	is kept.	50°C, or when it drops below to
		46°C, the capacity control
R		operation returns to the usual
		control in heating operation.
Usual heating capacity control		(R zone)

– 32 –