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3. OUTDOOR UNIT REFRIGERATING CYCLE DIAGRAM
Pressure
switch
P
Cooling: High pressure
Heating: Low pressure
Accumulator
Rotary compressor
(2500cc)
(RX420A3F-27M)
RAV-GP1101 series
Pressure
(Mpa)
Pd
Ps
Standard
2.3
1.1
Cooling
Overload
3.1
1.5
Low load
2.2
0.7
Standard
2.5
0.8
Heating
Overload
3.4
1.4
Low load
2.0
0.2
RAV-GP1401 series
Pressure
(Mpa)
Pd
Ps
Standard
2.4
1.0
Cooling
Overload
3.3
1.3
Low load
2.2
0.7
Standard
2.7
0.8
Heating
Overload
3.3
1.2
Low load
1.9
0.2
RAV-GP1601 series
Pressure
(Mpa)
Pd
Ps
Standard
2.4
1.0
Cooling
Overload
3.4
1.2
Low load
2.2
0.8
Standard
3.0
0.8
Heating
Overload
3.2
1.2
Low load
1.9
0.2
∗ This compressor has 4-pole motor. The value when compressor frequency (Hz) is measured by a clamp
meter becomes 2 times of No. of compressor revolutions (rps).
TS sensor
Check joint
DIA 8, 2 rows, 52 stages
TD sensor
In cooling operation
In heating operation
Muffler
Muffler
Muffler
DIA 25 × L180
DIA 25 × L210
Pipe surface temperature
2
(kg/cm
G) Discharge
Suction
Pd
Ps
(TD)
(TS)
23.5
11.7
80.2
12.9
32.0
14.8
67.0
17.0
22.6
7.4
70.0
2.0
25.9
8.2
87.2
3.2
35.1
13.8
77.0
20.0
20.0
1.7
78.0
-25.0
Pipe surface temperature
2
(kg/cm
G) Discharge
Suction
Pd
Ps
(TD)
(TS)
24.0
10.6
89.7
9.3
34.0
13.4
73.0
18.0
22.7
7.5
71.0
3.0
27.8
8.2
90.8
1.5
34.1
12.3
76.0
17.0
19.5
1.7
77.0
-25.0
Pipe surface temperature
2
(kg/cm
G) Discharge
Suction
Pd
Ps
(TD)
(TS)
24.1
10.3
98.6
8.7
35.0
12.2
77.0
19.0
22.7
7.6
72.0
4.0
30.5
8.2
100.9
0.7
33.0
12.3
75.0
17.0
19.5
1.7
77.0
-25.0
TO sensor
TL sensor
TE sensor
Heat exchanger
Distributor
FP1.45, flat fin
Strainer
Indoor heat
Outdoor heat
exchanger
exchanger
(TC)
(TL)
(TE)
11.0
44.6
36.9
16.0
48.0
47.0
1.0
36.0
16.0
41.0
7.6
3.0
53.0
22.0
19.0
31.0
-10.0
-23.0
Indoor heat
Outdoor heat
exchanger
exchanger
(TC)
(TL)
(TE)
8.0
46.8
37.6
17.0
51.0
50.0
2.0
37.0
16.0
44.0
7.6
2.7
52.0
20.0
17.0
30.0
-10.0
-23.0
Indoor heat
Outdoor heat
exchanger
exchanger
(TC)
(TL)
(TE)
7.0
48.4
38.3
18.0
54.0
53.0
3.0
37.0
17.0
48.0
7.6
2.4
51.0
20.0
17.0
30.0
-10.0
-23.0
– 22 –
PMV
Strainer
Capillary
DIA 4 × DIA 3 (6 pcs.)
Refrigerant pipe
at liquid side DIA 9.5
Packed valve
Refrigerant pipe
at gas side DIA 15.9
Ball valve
Cooling: Low pressure
Heating: High pressure
Compressor
drive revolution
Indoor fan
frequency (rps)
36.6
HIGH
35.4
HIGH
33.0
LOW
40.2
HIGH
26.4
LOW
90.6
HIGH
Compressor
drive revolution
Indoor fan
frequency (rps)
50.4
HIGH
42.0
HIGH
33.0
LOW
51.6
HIGH
26.4
LOW
90.6
HIGH
Compressor
drive revolution
Indoor fan
frequency (rps)
61.2
HIGH
48.6
HIGH
33.0
LOW
60.0
HIGH
26.4
LOW
90.6
HIGH
Indoor/outdoor
temp. condition
Indoor
Outdoor
27/19
35/-
32/24
46/-
18/15.5
-15/-
20/-
7/6
30/-
24/18
15/-
-20/-
Indoor/outdoor
temp. condition
Indoor
Outdoor
27/19
35/-
32/24
46/-
18/15.5
-15/-
20/-
7/6
30/-
24/18
15/-
-20/-
Indoor/outdoor
temp. condition
Indoor
Outdoor
27/19
35/-
32/24
46/-
18/15.5
-15/-
20/-
7/6
30/-
24/18
15/-
-20/-
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