Fujitsu AUXB12GA* H - 2-1 REFRIGERANT CIRCUIT

: Capillary
: Strainer
02-01
2-1 REFRIGERANT CIRCUIT
1 Compressor temp. Sensor 1 Detects the compressor temperature
No. Part name Function
2 Discharge temp. Sensor 1 Detects the discharge temperature
High pressure Swithch Detects abnormal high pressure (4.20 MPa)3
4 Check valve Comp. pressure equaization
Oil Separator Separates oil and refrigerant5
6 Compressor (Inverter) Operation range ( 20 rps - 90 rps )
7 Bypass / Oil return Valve HP-LP bypass in protection, Returns the oil to COMP
8 Oil return Valve Returns the oil to Compressor
9 High pressure Sensor Detects the High pressure
10 Bypass Valve
HP-LP bypass in protection / Comp. pressure equalization
11 Suction gas temp. Sensor
Collects refrigerant and the returned oil
12 Low pressure Sensor
Detects the temp of refrigerant
13 Acuumulator
Detects Low pressure
14 4-Way-Valve 1 Changes operation mode of HEX 1
Changes operation mode of HEX 24-Way-Valve 215
16 Service port Measure High pressure for Service
17 Heat-Ex 1 gas temp. Sensor Detects the temperature of refrigerant
Heat-Ex 2 gas temp. Sensor Detects the temperature of refrigerant
18 Heat Exchanger 1 Operates as Condenser / Evaporator
Heat Exchanger 2 Operates as Condenser / Evaporator
19
20
21 Outdoor unit FAN (Motor) Control FAN speed for heat exchange of HEX
22 Outdoor temp. Sensor Detects the ambient temperature
23 Heat-Ex 1 liquid temp. Sensor Detects the temperature of refrigerant
Heat-Ex 2 liquid temp. Sensor Detects the temperature of refrigerant24
25 Pressure regulation valve Operates in regulated pressure (4.00MPa)
26 Outdoor unit EEV1 Controls the flow of ref. based on target pressure
27 Outdoor unit EEV2 Controls the flow of ref. based on target pressure
29 Liquid pipe temp. Sensor 1 Detects the temperature of liquid refrigerant
Outdoor unit EEV3 Controls ref. subcooling /Operats in protection30
31 Sub-Cool Heat exchanger Subcool of liquid refrigerant
32
Sub-Cool HEX gas outlet temp
Sensor
Detects the temperature of refrigerant
33 Liquid pipe temp. Sensor 2 Detects the temperature of liquid refrigerant
36 3way-valve (Liquid) Open / Close for Liquid line
37 3way-valve (Gas) Open / Close for Gas line
38 Service port Measure Low pressure for Service
39 I.U HEX outlet temp. Sensor Detects the temperature of refrigerant
Detects the temperature of room
Room temp. Sensor40
41 Indoor unit FAN (Motor) Controlled by setting / protection / Thermo OFF
Changes operation mode
42 I.U Heat Exchanger Operates as Condensor / Evapolator
Indoor unit EEV Controlled by setting / protection / Thermo OFF
43 I.U HEX inlet temp. Sensor Detects the temperature of refrigerant
44
4-Way-Valve 345
Prevents the liquid refrigerant return at cooling Check valve46
Function
Part name
No.
2. OUTDOOR UNIT
EEV21
LIQUID LINE
FAN21
Indoor unit1
Outdoor unit
HEX21
GAS LINE
TH21
TH22
TH24
SCHEX
CMP
(INV)
ACM
LPS
HEX1
TH11
TH1
HPSW1
SV2
SV3
TH3
TH2
EEV2
EEV1
TH4
EEV3
TH6
TH5
TH7
TH8
TH9
TH10
4WV 1
CMP
ACM
OS
HPS
FAN1
4WV 3
4WV 2
HEX2
SV1
6
38