-
25
-
Notes (1)
When the discharge pipe temperature is in the range of 100(90) to 125(110)ºC, the speed is reduced by 4 rps.
(2)
When the discharge pipe temperature is raised and continues operation for 20 seconds without changing, then the speed is reduced again by 4 rps.
(3)
If the discharge pipe temperature is still 90 (80) ºC or greater but less than 100 (90) ºC even when the inverter command speed is maintained for 3
minutes when the temperature is 90 (80) ºC or greater but less than 100 (90) ºC, the speed is raised by 2 rps and kept at that speed for 3 minutes. This
process is repeated until the command speed is reached.
(4)
Lower Limit Speed
Cooling
Heating
20, 25, 35 type
20
30
50 type
22
38
(5)
Values in ( ) are for Type 50.
2)
If the temperature of 125 (110)ºC is detected by the sensor on the discharge pipe, then the compressor will stop immediately.
When the discharge pipe temperature drops and the time delay of 3 minutes is over, the unit starts again within 1 hour but
there is no start at the third time.
(n)
Serial signal transmission error protection
(i)
Purpose:
Prevents malfunction resulting from error on the indoor
↔
outdoor signals.
(ii)
Detail of operation:
When the indoor unit controller
↔
outdoor unit controller signals cannot be received, the compressor
is stopped immediately. Once the operation stops, it does not start any more.
(TIMER light on the indoor unit flashing at the same time.)
(o)
High pressure control
(i)
Purpose:
Prevents anomalous high pressure operation during heating.
(ii)
Detector:
Indoor unit heat exchanger sensor (Th2)
(iii) Detail of operation:
(m) Compressor overheat protection
(i)
Purpose:
It is designed to prevent deterioration of oil, burnout of motor coil and other trouble resulting from the compressor
overheat.
(ii)
Detail of operation
1)
Speeds are controlled with temperature detected by the sensor mounted on the discharge pipe.
Discharge pipe temperature (˚C)
Lower limit
(4)
After lapse of 3 min. or over
(3)
After lapse of 3 min. or over
(3)
After lapse of 3 min. or over
(3)
4 rps
4 rps
(1)
0 rps
(Example) Fuzzy
90
(80)
100
(90)
125
(110)
Notes (1) RPSmin: The lower one between the outdoor unit speed and the command speed
Note
(2) Values in ( ) are for Type 50.
¡
Temperature list
A
B
C
RPSmin < 40(88)
48 (48.5)
53 (56)
58 (61)
40(88) <= RPSmin < 50(108)
48 (44)
53 (51.5)
58 (56.5)
50(108) <
= RPSmin
48.5 (39)
56 (46.5)
61 (51.5)
(Example) Fuzzy
Indoor unit heat exchanger temperature (˚C)
Lower limit
speed 20(35)rps
After lapse of 20 Sec. or over
(2)
After lapse of 20 Sec. or over
(2)
After lapse of 20 Sec. or over
(2)
B
C
8 rps
(1)
8 rps
0 rps
A
Notes (1) When the indoor unit heat exchanger temperature is in the range of B~C ºC, the speed is reduced by 8 rps at each 20 seconds. When the temperature is C
ºC or over for 1 minute continuously, the inverter is stopped.
(2) When the indoor unit heat exchanger temperature is in the range of A~B ºC, if the inverter command speed is been maintained and the operation has
continued for more than 20 seconds at the same speed, 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 speed.
Unit : ºC
Summary of Contents for SRK56CE-S1
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