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SiBE04-101
General Functions
Main Function
31
The frequency command for every zone is stated below.
(Please note that an operation will not carry out in the commanded frequency sometimes in case a
protection control like a freeze-protection etc. will be actuated.)
3. Required fan speed
Fan speed changes the rotation speed every time when a thermostat switches over ON and OFF.
When the thermostat becomes Off, fan continues to operate maximum 10 minutes with low speed so as
to prevent dew condensation on the inside of the indoor unit, and then stops.
Night Set Mode
The night set mode is automatically activated when the off timer is set. The set temperature changes as
time goes by, the operation frequency is decreased and the operating noise is diminished during sleep.
∗
One hour after the OFF-timer is set, the outdoor unit sets the upper limit of the operation frequency at
the value close to the rated frequency to reduce the outdoor operating noise.
Room temperature
Room temp. zone
Command frequency
50 Class
60 Class
71 Class
Room temp. < 18˚C
A
0 Hz
0 Hz
0 Hz
except A
32 Hz
28 Hz
28 Hz
Room temp.
≥
18˚C
A
0 Hz
0 Hz
0 Hz
B
32 Hz
28 Hz
28 Hz
D32 Hz
28 Hz
28 Hz
E
30 Hz
30 Hz
28 Hz
F
36 Hz
34 Hz
30 Hz
Fan rpm (thermostat ON)
50 Class
60 Class
71 Class
Wall Mounted type
Floor/Ceiling type
Wall Mounted type
Floor/Ceiling type
Wall Mounted type
Thermostat ON
960 / 980rpm
1040 / 1060rpm
1040rpm
Thermostat OFF
750 / 400rpm
750 / 400rpm
750rpm
Thermostat ON and dry on powerful
operation
1080 / 1060rpm
1120 / 1140rpm
1120rpm
Item
Description
Drawing
Cooling
The set temperature
stays on for one hour,
then decreases slightly
for economical
operation.
Heating
The set temperature
stays on for one hour,
then increases slightly
for economical
operation.
0,5˚C
0,5˚C
0,5˚C
temperature shift
A
A
B
B
A
B
temperature s1˚C
temperature s0.5˚C
temperature setting
operation stops
at the set hours
1 hour
30 min.
Timer operation
Night set circuit on
+0.5˚C temperature shift
Temperature setting remains
When the outside temperature is lower than 27˚C and the room
temperature is at the set temperature.
When the outside temperature is 27˚C or higher.
(R1034)
2˚C
Thermostat
setting
Timer operation
Night set circuit on
1 hour later
(R1035)
SiBE04-101.book Page 31 Monday, October 15, 2001 3:08 PM