Timer Operation - Mitsubishi Electric FDT125VNVF Technical Manual

(4)

Timer operation

(a) 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 clock timer
setting, the remaining time is displayed with progress of time in the unit of hour.
(b) OFF timer
Time to turn OFF the air-conditioner can be set in the unit of 10 minutes.
(c) ON timer
Time to turn ON the air-conditioner can be set. Indoor temperature can be set simultaneously.
(d) Weekly timer
Timer operation (ON timer, OFF timer) can be set up to 4 times a day for each weekday.
(e) Timer operations which can be set in combination
Item
Item
Timer
OFF timer
ON timer
Weekly timer
Note (1) �: Allowed �: Not
(5) Remote controller display during the operation stop
When the operation is stopped (the power supply is turned ON), it displays preferentially the "Room temperature", "Center/
Remote", "Filter sign", "Inspection" and "Timer operation".
(6) Outline of heating or cooling operation
(a) Operation of major functional components in heating mode
Compressor
Indoor fan motor
Outdoor fan motor
4-way valve
(b) Operation of major functional components in Cooling mode
Compressor
Indoor fan motor
Outdoor fan motor
4-way valve
(7) Frost prevention control
(a) Operating conditions
1) More than 8 minutes after starting the compressor.
2) Indoor heat exchanger temperature (detected with Th2) is lower than 2.5 ℃
(b) Contents of frosting operation
Function
Compressor ON/OFF command
Indoor fan motor
Resetting condition: Indoor heat exchanger temperature (Th2) is higher than 8 ℃ .
(c)
Timer OFF timer
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Thermostat ON
ON
ON
ON
ON
Thermostat ON
ON
ON
ON
OFF
Control
During this control
Forced stop
Depending on the airflow setting with the remote
controller
ON timer
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Heating
Thermostat OFF
OFF
ON(HOT KEEP)
OFF
ON
Cooling
Thermostat OFF
OFF
ON
OFF
OFF
Reset
Operation command
Indoor heat exchanger temperature (℃)
314
- -
'12 • PAC-T-174
Weekly timer
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Failure
OFF
OFF
OFF
OFF
(3 minutes ON)
Failure
OFF
OFF
OFF
(few minutes ON)
OFF
Reset
During
control
2.5 8