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In cooling operation
In heating operation
Ø25 × L180
Ø25 × L210
TS sensor
P
Pressure
switch
TO sensor
TE sensor
TD sensor
TL sensor
Cooling: High pressure
Heating: Low pressure
Cooling: Low pressure
Heating: High pressure
Check joint
Heat exchanger
Ø8, 2 rows, 52 stages
FP1.45, flat fin
Accumulator
(2500cc)
Rotary compressor
(DA422A3F-27M)
PMV
Capillary
Ø4 ×Ø3 (6 pcs.)
Strainer
Strainer
Refrigerant pipe
at liquid side Ø9.5
Packed valve
Refrigerant pipe
at gas side Ø15.9
Ball valve
Distributor
Muffler
Muffler
Muffler
RAV-SP110 type
∗ 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).
3. OUTDOOR UNIT REFRIGERATING CYCLE DIAGRAM
RAV-SP140 type
Standard
Cooling Overload
Low load
Standard
Heating Overload
Low load
Pressure
(MPa) (kg/cm²g)
Pd Ps Pd Ps
2.59 0.98 26.4 10.0
3.30 1.09 33.7 11.1
1.74 0.75 17.8 7.7
2.35 0.71 24.0 7.2
3.22 1.17 32.9 11.9
2.55 0.20 26.0 2.0
Pipe surface temperature (°C)
Discharge Suction
Indoor heat Outdoor heat
exchanger exchanger
(TD) (TS) (TC) (TL) (TE)
66 13 13 44 42
78 9 13 49 43
46 7 5 32 25
65 3 39 7 3
73 19 54 14 15
99 –23 45 –19 –19
Compressor
drive revolution
frequency
(rps)
40
53
21
43
26
96
Indoor
fan
HIGH
HIGH
LOW
HIGH
LOW
HIGH
Indoor/Outdoor
temp. conditions
(DB/WB) (°C)
Indoor Outdoor
27/19 35/–
32/24 43/–
18/15.5 –5/–
20/– 7/6
30/– 24/18
15/– –15/–
Standard
Cooling Overload
Low load
Standard
Heating Overload
Low load
Pressure
(MPa) (kg/cm²g)
Pd Ps Pd Ps
2.77 0.87 28.3 8.9
3.50 0.98 35.7 10.0
1.75 0.76 17.9 7.8
2.66 0.67 27.1 6.8
3.13 1.05 31.9 10.7
2.48 0.20 25.3 2.0
Pipe surface temperature (°C)
Discharge Suction
Indoor heat Outdoor heat
exchanger exchanger
(TD) (TS) (TC) (TL) (TE)
74 12 10 46 42
84 10 14 54 46
47 8 6 33 25
75 2 44 7 3
72 16 53 12 13
98 –23 44 –19 –19
Compressor
drive revolution
frequency
(rps)
54
64
21
55
26
96
Indoor
fan
HIGH
HIGH
LOW
HIGH
LOW
HIGH
Indoor/Outdoor
temp. conditions
(DB/WB) (°C)
Indoor Outdoor
27/19 35/–
32/24 43/–
18/15.5 –5/–
20/– 7/6
30/– 24/18
15/– –15/–
RAV-SP160 type
Standard
Cooling Overload
Low load
Standard
Heating Overload
Low load
Pressure
(MPa) (kg/cm²g)
Pd Ps Pd Ps
2.89 0.78 29.5 8.0
3.61 0.90 36.8 9.2
1.75 0.77 17.9 7.9
2.88 0.65 29.4 6.6
3.04 1.05 31.0 10.7
2.48 0.20 25.3 2.0
Pipe surface temperature (°C)
Discharge Suction
Indoor heat Outdoor heat
exchanger exchanger
(TD) (TS) (TC) (TL) (TE)
81 10 9 48 43
88 11 15 57 49
48 9 7 33 26
82 2 47 7 3
71 16 52 12 13
98 –23 44 –19 –19
Compressor
drive revolution
frequency
(rps)
65
74
21
63
26
96
Indoor
fan
HIGH
HIGH
LOW
HIGH
LOW
HIGH
Indoor/Outdoor
temp. conditions
(DB/WB) (°C)
Indoor Outdoor
27/19 35/–
32/24 43/–
18/15.5 –5/–
20/– 7/6
30/– 24/18
15/– –15/–