Mitsubishi Heavy Industries FDT71VNXVD Service Manual page 6

(d) Timer operation
1) Sleep timer
Set the duration of time from the present to the time to turn off the air-conditioner.
It can be selected from 10 steps in the range from "OFF 1 hour later" to "OFF 10 hours later". After the sleep timer
setting, the remaining time is displayed with progress of time in the unit of hour.
2) OFF timer
Time to turn OFF the air-conditioner can be set in the unit of 10 minutes.
3) ON timer
Time to turn ON the air-conditioner can be set. Indoor temperature can be set simultaneously.
4) Weekly timer
Timer operation (ON timer, OFF timer) can be set up to 4 times a day for each weekday.
5) Timer operations which can be set in combination
Item
Item
Sleep timer
OFF timer
ON timer
Weekly timer
Note (1) : Allowed
(e) Remote controller display during the operation stop
1) "Centralized control ON" is displayed always on the LCD under the "Center/Remote" and "Center" modes during the
operation stop (Power ON). This is not displayed under the "Remote" mode.
2) If this display is not shown under the "Center/Remote" mode, check if the indoor unit power switch is turned on or not.
(f) Hot start (Cold draft prevention at heating)
At the startup of heating operation, at resetting of the thermostat, during defrost operation and at returning to heating, the
indoor fan is controlled by the indoor heat exchanger temperature (detected with Th
Fan
Lo
Indoor heat exchanger temperature (˚C)
Heat exchanger temp. 35
Compressor ON
（1）
Fan
Lo
Indoor heat exchanger temperature (˚C)
Note (1) Heating preparation is displayed during the hot start (when the compressor is operating and the indoor fan does not provide the set airflow volume).
Sleep timer OFF timer
: Not
Judgment by heating start thermostat
Thermostat OFF
Set airflow volume
35
or higher, or after 7 minutes
˚C
Normal condition/Set airflow volume
Compressor OFF
Set airflow volume
35 45
-
ON timer Weekly timer
-R) for preventing the cold draft.
I
Thermostat ON
Set airflow volume
Lo
Fan
OFF
25 35
Indoor heat exchanger temperature (˚C)
Heat exchanger temp. 35 or higher, or after 7 minutes
˚C
Defrosting start
Set airflow volume
Lo
Fan
OFF
25 35
Indoor heat exchanger temperature (˚C)
-
6
'10 • PAC-SM-137A
End of defrosting
45