Toshiba RAS-B13EKVP-E, RAS-M13EKCVP-E, RAS-M18EACV-E, RAS-M14EACV-E, RAS-M16EKCVP-E, RAS-M18EAV-E Pmv

Item		Operation flow and applicable data, etc.				Description
14. Pulse Motor	This function controls throttle amount of the refrigerant in					1) When starting the operation, move
valve	the refrigerating cycle.					the valve once until it fits to the
(PMV)	According to operating status of the air conditioner, this					stopper. (Initialize)
control
	function also controls the open degree of valve with an					* In this time, “Click” sound may be
	expansion valve with pulse motor.					heard.
						2) Adjust the open degree of valve by
						super heat amount. (SH control)
						3) If the discharge temperature was
			Starting up			excessively up, adjust the open
						degree of valve so that it is in the
						range of set temperature.
						(Discharge temp. control)
			Initialize
						4) When defrost operation is per-
						formed, the open degree of valve is
						adjusted according to each setup
			Move to			conditions during preparation for
			initial position			defrost and during defrost opera-
						tion (4-way valve is inversed.).
						5) To turn off the compressor while the
				Compressor ON
						air conditioner stops by control of
						the thermostat or by remote
						controller, adjust the open degree
		SH control			Td	of valve to the setup value before
				release control		stop of the compressor.

PMV open degree control

Stop by	Room temp. sensor
remote controller	(Ta sensor) control
Power OFF		Defrost

*SH (Super Heat amount, cooling operation) =

Tg (Temperature of gas pipe) – Tc (Heat exchanger temperature of indoor unit)

*SH (Super Heat amount, heating operation) =

Ts (Temperature of suction pipe of the compressor) – Te (Heat exchanger temperature of outdoor unit)

*PMV: Pulse Motor Valve

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