Refrigerant Flow For Each Operation Mode; Rxyq72Taydu, Rxyq72Tatju - Daikin RXYQ-TA Series Service Manual

SiUS341615E

3. Refrigerant Flow for Each Operation Mode

3.1

RXYQ72TAYDU, RXYQ72TATJU

3.1.1 Cooling Operation
High temperature, high pressure, gas
High temperature, high pressure, liquid
Low temperature, low pressure
Stop valve (With service port
Refrigerant Circuit
Fan ON
Fan OFF
ON
Heat exchanger
Fan
EV: Normal
control
Filter Filter
Electronic expansion valve
Indoor unit
Thermostat ON
Double tube
heat exchanger
Filter
Electronic
expansion
Fusible
valve
plug
Pressure
regulating valve
Low pressure
Accumulator
Capillary tube Charge port
SV
Filter Solenoid valve Filter
φ
5/16 in. (7.9mm) flare connection)
Refrigerant Flow for Each Operation Mode
Indoor unit operation
OFF
Heat exchanger
Fan
EV: 0 pulse
Filter Filter
Electronic expansion valve
Indoor unit
Electronic
expansion valve
Filter
Heat sink
S1NPL
sensor
High pressure
switch
S1PH
Compressor
M1C
Fan ON
ON
Heat exchanger
Fan
EV: 0 pulse
Filter Filter
Electronic expansion valve
Indoor unit
Thermostat OFF
Fan
Heat exchanger
M
Four way valve
High pressure
S1NPH
sensor
Check valve
Filter
Oil
separator
Filter
Solenoid valve
Capillary tube
C: 3D085567A
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