Midea MV5-X252W/V2GN1 - Page 18

V5 X VRF 50/60Hz
201608 17
Part 2 - Component Layout and Refrigerant Circuits
Oil return operation in heating mode and defrosting operation
Figure 2-3.3: MV5-X252(280, 335)W/V2GN1 refrigerant flow during oil return operation in heating mode and during defrosting operation
M
M
M
M
High temperature, high pressure gas
High temperature, high pressure liquid
Low temperature, low pressure
FAN
OFF
Heat exchanger
FAN
OFF
FAN
OFF
FAN
OFF
Heat exchanger
High
pressure
switch
High pressure
sensor
Low pressure
switch
Compressor
Oil
Separator
Accumulator
Electronic expansion valve
Filter
480 steps
Filter
"ON"
"ON"
"OFF"
"ON"
Filter
Stop valve
Indoor unit operation
Filter
Solenoid
valve SV4
Stop valve
Stop valve
Capillary
tube
Filter
Filter
Filter
Solenoid
valve SV2
1-way valve
Solenoid
valve SV5
480 steps
480 steps
480 steps
Filter
Filter
Heating operation
Figure 2-3.4: MV5-X252(280, 335)W/V2GN1 refrigerant flow during heating operation
M
M
M
M
High temperature, high pressure gas
High temperature, high pressure liquid
Low temperature, low pressure
FAN
ON
FAN
ON
FAN
OFF
FAN
ON
Filter
Normal control
Filter
Normal control
Four-way
valve
Low pressure
switch
High pressure
sensor
Pressure
regulating
valve
Compressor
Oil
Separator
Accumulator
Electronic expansion valve
High
pressure
switch
Heat exchanger
closed
Heat exchanger
Solenoid
valve SV2
Solenoid
valve SV4
Solenoid
valve SV6
Solenoid
valve SV5
Stop valve
Stop valve
Stop valve
1-way valve
1-way
valve
1-way
valve
Filter
Filter
Filter
Filter
"ON"
"ON"
"OFF"
"ON"
Indoor unit operation
Capillary
tube
Filter
Filter
closed