Outdoor Unit Refrigerating Cycle Diagram - Toshiba RAV-SP1104AT8-E Service Manual

3. OUTDOOR UNIT REFRIGERATING CYCLE DIAGRAM

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