Samsung DVM PLUS III, Технический справочник

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8
Cycle function parts
8-3. A description of cycle function parts
No Cycle parts Functions
1
DVI compressor
(Digital Vapor Injection)
DVI compressor coupled with vapor injection controls the capacity 10 to 100% of its
capacity.
It enhances cooling and heating performance and COP with using vapor injection.
2
FVI compressor
(Fixed Vapor Injection)
FVI compressor coupled with vapor injection is fixed compressor. It enhances cooling,
heating performance and COP with using vapor injection.
3 PWM valve
|t is used for variation of digital compressor’s capacity. When the valve is open, the DVI
compressor keeps the unloading state, otherwise loading state.
4 Discharge temp. sensor
It measures the temperature of compressor outlet. The main function of it is to protect
compressor from overheating.
5 Oil separator
It separates oil and refrigerant discharged from the compressor and returns the oil into
compressor again.
6 High pressure switch It protects the system from abnormal high pressure. (Open : 4.1Mpa, Close : 3.5 Mpa)
7 Hot gas bypass valve
When the suction pressure becomes abnormal low pressure, it opens.
During the oil balance operation, it makes high pressure for the shell of compressor
8 High pressure sensor
The main function of it controls the capacity of compressor in pursuit of target of high
pressure in heating operation by measuring the value of the system.
9 4way valve It enables to change operating mode into cooling and heating mode.
10 Ambient air temp. sensor It measures the temperature of ambient.
11 Cond_out temp. sensor It has application to know subcooling and the complete point of defrost.
12 Main EEV 1, 2
It controls the amount of refrigerant entering outdoor’s heat exchanger in heating
operation.
13 Liquid bypass valve When the compressor is overheating, it opens to make discharge temperature low.
14 EVI EEV
It enables to secure sufficient subcooling and control the amount of vapor entering into
vapor port of compressor.
15 Turbo intercooler
Through turbo intercooler, heat is exchanged each other between saturated liquid
refrigerant and a little expanded refrigerant.
16 EVI_in temp. sensor
These temperature sensors enable to control EVI EEV’s step to secure superheat.
17 EVI_out temp. sensor
18 Liquid tube temp. sensor
It is used to know subcooling.
(Subcooling = The saturated temp. of high pressure - Liquid tube temp.)
19 EVI bypass valve This valve closes during application of vapor injection.
20 Suction temp. sensor This is applied to know superheat in heating mode with the low pressure sensor.
21 Accumulator Ambient air temperature sensor (Tair)
22 Oil valve When oil balance operation happens, this valve opens.
23 Low pressure sensor
The main function of it is to control the capacity of compressor in pursuit of target of low
pressure in cooling operation by measuring the low pressure.
24 Sump(Base) temp. sensor
With checking sump temperature of compressor, it prevents the compressor from liquid
back and overheating.
25 Oil temp. sensor While the oil balance is operating, it make a self-diagnosis of the oil valve.
26 Outdoor EEV valve
In order to prevent outdoor heat exchanger from refrigerant accumulation in main cooling
operation, this valve closes, otherwise Main EEV controls the amount of refrigerant.