-
16
-
(iii) Ending conditions (Operation returns to the heating cycle when either one of the following is met.)
1
Outdoor heat exchanger thermistor (Th4) temperature: 13ºC or higher (50 type: 20
°
C or higher)
2
Continued operation time of defrosting
→
For more than 10 min.
Indoor fan
Operation lamp
Corresponding
to speed
OFF
ON
Flashing
(Hot keep)
Outdoor fan
Inverter
command
Fuzzy calculated
value
70 rps
(1)
0
Corresponding
to speed
OFF
OFF
ON
4-way valve
Final defrost operation
Defrost control
Hot keep
Indoor unit
Outdoor unit
75 sec.
Hot keep
60 sec.
Normal heating operation restored
Defrost end
(Th4
≥
20
°
C, 10 minutes)
Defrost operation
Defrost operation
preparation
2nd speed
2nd speed
(e)
Heating “HI POWER” operation
(HI POWER button on remote controller: ON)
Operation is maintained for 15 minutes with a higher blow out air temperature.
¡
Detail of operation
Model
SRK25, 35ZD-S
SRK50ZD-S
Item
Inverter speed
102 rps
120 rps
Indoor fan
Hot keep M mode (max 8th speed)
Hot keep M mode (max 7th speed)
Outdoor fan
4th speed
2nd speed
Notes (1) Room temperature is not adjusted during the HI POWER operation.
(2) Protective functions will actuate with priority even during the HI POWER operation.
4.7 Outline of cooling operation
(1)
Operation of major functional components in Cooling mode
¡
50 type
Item
Indoor fan motor
ON
ON
OFF
Flaps
ON or OFF
ON or OFF
Stop position control
Display
Lights up
Lights up
Lights up or flashes
52C
ON
ON
OFF after stop mode
Outdoor fan motor
OFF (25, 35 type)
ON
OFF (25, 35 type)
Depending on the stop mode (50 type)
Depending on the stop mode (50 type)
4-way valve
Depending on the stop mode
ON
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
Note (1) When outdoor unit heat exchanger thermistor (Th4) temperature becomes 7
°
C or higher, inverter instruction changes 70 rps
to 50 rps.
