02-09
2-6-2 Heating / Heating main Operation
Fan step
16*
15
14
13
12
11
880
860
810
720
620
500
Fan speed (rpm)
intermittent 6
intermittent 5
intermittent 4
intermittent 3
intermittent 2
intermittent 1
6
5
4
3
2
1
Intermittent fan mode
Fan speed 0 rpm
duration time T ( sec )
Fan step Fan mode
40
33
26
19
12
6
7
Fan speed 300 rpm
duration time ( sec )
When switched from normal fan step to intermittent fan step, always start from 300rpm/7sec.
When there was a change during intermittent step 1-6, switching is performed at the time the current speed
duration time reaches time-up.
7 sec 7 sec 7 sec
300 rpm
[ T ] sec [ T ] sec
0 rpm
Normal fan step
Intermitten fan step
Time
Fan speed
(-20 ) (21 )
( rpm )
Heating Operating range
920
The fan speed during all heating is constant with Fan step 16* regardless of the outdoor air temperature.
(1) Heating Operation
(2) Heating main Operation
Operate at 500 rpm until all the heat exchangers are used up.
Then adjust the rpm up or down in accordance with the load.
880 (920)
500 (500)
300 (300)
0
Number of Evaporator
1 2 3 4 5 6
Fan Speed
(rpm)
880
L-Chassis
S-Chassis
920
870
820
720
620
500
S-Chassis L-Chassis
( ): L-Chassis
( )
-4 F 70 F