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(4) Piping system
Models SRK63CE-S1, 71CE-S1
Indoor unit
Flare connecting
Humidity
sensor
Room temp.
sensor
Heat
exchanger
sensor
Heat
exchanger
Flare connecting
(5) Selection chart
Correct the cooling capacity in accordance with the conditions as follows. The net cooling capacity can be obtained in the following
way.
Net capacity = Capacity shown on specification ✕ Correction factors as follows.
(a) Coefficient of cooling capacity in relation to temperatures
(2) Correction of cooling capacity in relation to one way length of refrigerant piping
It is necessary to correct the cooling capacity in relation to the one way piping length between the indoor and outdoor units.
Piping length [m]
Cooling
Outdoor unit
Service valve
(Gas)
Piping
(Gas)
Check joint
63:
ø
12.7
(
)
71:
15.88
ø
Discharge pipe
temp. sensor
Piping
(Liquid)
Service valve (Liquid)
ø6.35
Strainer
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
43
40
35
30
25
21
Indoor air W.B. temperature ˚C W.B.
7
10
1.0
0.99
0.975
Muffler
Accumulator
Compressor
Capillary tube
Electronic
Strainer
expansion valve
(71 model only)
Cooling
16
18
ISO-T1 Standard Condition
15
20
25
0.965
0.95
291
-
-
Cooling cycle
Outdoor air
temp. sensor
Sub
accumulator
Heat
exchanger
Heat exchanger
sensor
Applicable range
20
22
24
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