R410a All DC Inverter Mini VRF MCAC-VTSM-2016-02
14 Specifications&Performance
4. Piping Diagrams
High
pressure
switch
SV6
Low
pressure
switch
Compressor
Oil
seperator
Low
pressure
liquid
accumulator
can
Oil
seperator
Discharge
temperature
sensor
4-way
valve
Ambient
temperature
sensor
Condenser
temperature
sensor
DC fan
motor
Electronic
expansion
valve
SV5
Oil
return
capilary
Oil separator:
used to separate oil from high pressure & temperature gas refrigerant, which is pumped out
from compressor. It makes the oil return back to each compressor very soon.
Low pressure liquid receiver:
It is used to store the liquid refrigerant and oil; it can protect the compressor
from liquid hammer.
4-way valve:
Closed in cooling mode and open in heating mode
Electronic expansion valve:
The opening is of the valve is regulated according to the discharge air
temperature of compressor, used to regulating refrigerant flow.
High Pressure Switch:
When the discharge pressure of compressor is 4.2Mpa or higher, the protection
switch will be triggered, and if the discharge pressure is down to 3.3MPa, the protection switch will be
recovered.
Low Pressure Switch:
When thegas pressureback to compressor is 0.14Mpa or lower, the protection switch
will be triggered, and if the discharge pressure is down to 0.3MPa, the protection switch will be recovered.
