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4.9 Outline of cooling operation
(1) Operation of major functional components in Cooling mode
Item
Indoor fan ON ON OFF
Flap and louver ON or OFF ON or OFF Stop position control
Display Lights up Lights up Lights up or flashes
Outdoor fan motor ON
4-way valve Depending on the stop mode OFF Depending on the stop mode
Electronic expansion valve Depending on the EEV control
When the inverter
speed is 0rps
When the inverter speed
is other than 0rps
When the inverter speed is 0rps
due to an anomalous stop
Functional
components
(3) Detail of control in each mode (Pattern)
(a) Fuzzy operation
During the fuzzy operation, the air flow and the inverter command speed are controlled by calculating the difference between
the room temperature setting correction temperature and the suction air temperature.
(b) Cooling thermostat operation
1) Operating conditions
During the cooling fuzzy operation or when the inverter command speed obtained by the fuzzy calculation is less than
-24 rps.
2) Detail of operation
(2) Air flow selection
(a) Speed of inverter changes within the range of selected air flow.
(b) When any protective function actuates, the operation is performed in the mode corresponding to the function.
(c) Outdoor blower is operated in accordance with the inverter command speed.
(c) Cooling “HIGH POWER” operation (HI POWER button on remote control: ON)
The unit is operated continuously for 15 minutes regardless of the setting temperature.
1) Detail of operation
Notes (1) Protective functions will actuate with priority even during the “HIGH POWER” operation.
(2) Room temperature is not adjusted during the “HIGH POWER” operation
Model
SRK63ZEA-S1 SRK71ZEA-S1
Air flow selection
Inverter command speed 12~64rps 12~74rps
Air flow Depends on inverter command speed.
Inverter command speed 12~64rps 12~74rps
Air flow 8th speed fixed
Inverter command speed 12~54rps 12~62rps
Air flow 6th speed fixed
Inverter command speed 12~40rps 12~44rps
Air flow 4th speed fixed
Inverter command speed 12~30rps
Air flow 2nd speed fixed
Auto
HI
MED
LO
ULO
Model
SRK63, 71ZEA-S1
Item
Inverter command speed 0 rps [Comp. stopped]
Indoor fan motor Corresponds to fan speed switch.
Outdoor fan motor Stop
Model
SRK63ZEA-S1 SRK71ZEA-S1
Item
Inverter command speed 64 rps 74 rps
Indoor fan motor 8th speed
Outdoor fan motor 6th speed
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