Specifications

28
SRK-GZ
Note (1) When the start delay of compressor of indoor unit controller is actuated and the operation is reset, it takes 2 minutes and 55 seconds.
When stopped by indoor unit controller When stopped or reset by outdoor unit protective function
Function Operation
Heating, heating Cooling, cooling Heating, heating Cooling, cooling
oriented dehumidifying oriented dehumidifying oriented dehumidifying oriented dehumidifying
Stop Full stop Stop Full stop Stop Restart Stop Restart
(0 Hz command) (0 Hz command) (0 Hz command) (0 Hz command)
Inverter
frequency
Indoor
fan
Indoor
power
relay
Outdoor
fan
4-way
valve
(Command
frequency)
0
(Frequency
dependent)
OFF
ON
OFF
3 min.
(1)
3 min.
(1)
2 min. 2 min.
55 sec. 55 sec.
Hot keep
2 min. 2 min.
2 min.
2 min.
10 sec.10 sec.
(l) Stop mode
(i) Operating conditions: When the operation mode is changed, when the dehumidifying operation is changed from
the heating oriented mode to the cooling oriented mode or vice versa, or when the inverter frequency turns to 0 Hz.
[When 0 Hz is commanded from the indoor unit controller, when an outdoor protective function is actuated]
(ii) Detail of operation
S SRK25GZ-L1, 35GZ-L1
ON
OFF
ON
OFF
10 sec. 10 sec.
Notes (1) When the indoor unit heat exchanger temperature is in the range of 55 - 65(63)ºC, the frequency is reduced by 8 Hz (8 rps) at each
20 seconds.
(2) When the indoor unit heat exchanger temperature is in the range of 47.5(49.5) - 55ºC, if the inverter command frequency is been
maintained and the operation has continued for more than 6 minutes at the same frequency, it returns to the normal heating
operation.
(3) Indoor blower retains the fan tap when it enters in the high pressure control. Outdoor blower is operated in accordance with the
frequency.
(4) value in ( ) indicates 50 model.
(k) High pressure control
(i) Purpose: Prevents abnormally high pressure operation during heating.
(ii) Detector: Indoor unit heat exchanger thermistor (Th2)
(iii) Detail of operation: (Example) Fuzzy
Indoor unit heat exchanger temperature (˚C)
Lower limit
frequency 34 Hz
After lapse of 6 min. or over
(3)
After lapse of 6 min. or over
(3)
After lapse of 6 min. or over
(3)
47.5
(49.5)
55
65
(63)
8 Hz (8 rps)
(1),
(4)
8 Hz (8 rps)
0 Hz
(30 rps)