Справочник Пользователя для Toshiba RAS-13GAVP-E

– 38 –

14. Pulse motor

valve (P.M.V.)
control

This function controls throttle amount of the
refrigerant in the refrigerating cycle.

According to operating status of the air conditioner,
this function also controls the open degree of valve
with an expansion valve with pulse motor.

1) When starting the operation, move the

valve once until it fits to the stopper.
(Initialize)

* In this time, “Click” sound may be

heard.

2) Adjust the open degree of valve by super

heat amount. (SH control)

3) If the discharge temperature was exces-

sively up, adjust the open degree of valve
so that it is in the range of set tempera-
ture.
(Discharge temp. control)

4) When defrost operation is performed, the

open degree of valve is adjusted accord-
ing to each setup conditions during
preparation for defrost and during defrost
operation (4-way valve is inversed.).

5) To turn off the compressor while the air

conditioner stops by control of the
thermostat or by remote controller, adjust
the open degree of valve to the setup
value before stop of the compressor.

* SH (Super Heat amount) =

Ts (Temperature of suction pipe of the compressor) –
Tc or Te (Heat exchanger temperature at evaporation side)

* PMV: Pulse Motor Valve

Starting up

Defrost

Initialize

Move to

initial position

PMV open degree control

SH control

Td 

release control

Stop by

remote controller

Power OFF

Room temp. sensor

(Ta sensor) control

Compressor ON