-
35
-
'14 • SRK-T-170
(9) Outline of cooling operation
(a) Operation of major functional components in Cooling mode
(b) Detail of control in each mode (Pattern)
(i) Fuzzy operation
During the fuzzy operation, the air
À
ow and the compressor command speed are controlled by calculating the difference
between the room temperature setting correction temperature and the suction air temperature.
ON
OFF
OFF
OFF
OFF
OFF
ON
OFF
(f
ew
m
i
n
u
t
e
s ON)
OFF
(f
ew
m
i
n
u
t
e
s ON)
ON
ON
ON
Thermo
s
tat ON
Thermo
s
tat OFF
Fa
i
l
u
re
Cool
i
ng
Compre
ss
or
Indoor fan motor
O
u
tdoor fan motor
4-way valve
20-106rps
20-106rps
20-109rps
20-109rps
20-55rps
20-66rps
20-42rps
20-38rps
M
odel
Fan
s
peed
S
RK25ZXA-
S
/
S
B/
SS
/
S
R
S
RK35ZXA-
S
/
S
B/
SS
/
S
R
AUTO
M
E
HI
LO
(10) Outline of dry (dehumidifying) operation
(a) Purpose of DRY mode
The purpose is "Dehumidi
¿
cation", and not to control the humidity to the target condition.
Indoor/outdoor unit control the operation condition to reduce the humidity, and also prevent over cooling.
(b) Outline of control
(i) Indoor unit fan speed and compressor are controlled by the area which is selected by the temp. differ-
ence
(ii) The indoor unit check the current area by every 5 minutes, and operate by the next checking.
(c) Other
When the outside temp. and room temp. is low for cooling operation, indoor unit can not operate in cooling In this case, the
units operate in heating to rise the room temp., and after that start DRY operation.
Indoor unit fan speed
Area
D
C
B
A
Me speed
Indoor unit
fan speed
ULo(Lo) speed
STOP
Limited
䋨
Lower than normal cooling operation
䋩
Compressor
Limited
speed
Minimum
䋨
Lower than the speed in ”Area A”
䋩
STOP
set temp.
Difference between set temp. and return temp.
