Mitsubishi FDT71VH User Manual

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16
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'20 • PAC-SM-351
(v)
Combination of patterns which can be set for the timer operations
Sleep timer
OFF timer
ON timer
Weekly timer
Sleep timer
Í

Í
OFF timer
Í

Í
ON timer


Í
Weekly timer
Í
Í
Í
Notes (1) : Allowed Í: Not
Item
Item
(2) Since the ON timer, sleep timerand OFF timer are set in parallel, when the times to turn ON and OFF the air-conditioner are duplicated, the
setting of the OFF timer has priority.
(5) Hot start (Cold draft prevention at heating)
(a) Operating conditions
Wheneitheroneoffollowingconditionsissatised,thehotstartcontrolisperformed.
(i) From stop to heating operation
(ii) From cooling to heating operation
(iii) Form heating thermostat OFF to ON
(iv) After completing the defrost operation (only on units with thermostat ON)
(b) Contents of operation
(i) Indoor fan motor control at hot start
1) Within 7 minutes after starting heating operation, the fan mode is determined depending on the condition of
thermostat (fan control with heating thermostat OFF).
a) Thermostat OFF
i) Operates according to the fan control setting at heating thermostat OFF.
ii) Even if it changes from thermostat OFF to ON, the fan continues to operate with the fan control at thermostat
OFF till the heat exchanger temperature sensor (Thi-R1 or R2, whichever higher) detects 35°C or higher.
iii) When the heat exchanger temperature sensor (Thi-R1 or R2, whichever higher) detects 35°C or higher, the fan
operateswiththesetairowvolume.
b) Thermostat ON
i) When the heat exchanger temperature sensor (Thi-R1 or R2, whichever higher) detects 25°C or lower, the fan is
turned OFF and does not operate.
ii) When the heat exchanger temperature sensor (Thi-R1 or R2, whichever higher) detects 25°C or higher, the fan
operates with the fan control at heating thermostat OFF.
iii) When the heat exchanger temperature sensor (Thi-R1 or R2, whichever higher) detects 35°C or higher, the fan
operateswiththesetairowvolume.
c)IfthefancontrolatheatingthermostatOFFissetatthe“Setairowvolume”(fromtheremotecontrol),thefan
operateswiththesetairowvolumeregardlessofthethermostatON/OFF.
2) Once the fan motor is changed from OFF to ON during the thermostat ON, the indoor fan motor is not turned OFF
even if the heat exchanger temperature sensor detects lower than 25°C.
Note (1) When the defrost control signal is received, it complies with the fan control during defrost operation.
3) Once the hot start is completed, it will not restart even if the temperature on the heat exchanger temperature sensor
drops.
(ii) During the hot start, the louver is kept at the horizontal position.
(iii) When the fan motor is turned OFF for 7 minutes continuously after defrost operation, the fan motor is turned ON re-
gardless of the temperatures detected with the indoor heat exchanger temperature sensors (Thi-R1, R2).
(c) Ending condition
(i)Ifoneoffollowingconditionsissatisedduringthehotstartcontrol,thiscontrolisterminated,andthefanisoperated
withthesetairowvolume.
1) Heat exchanger temperature sensor (Thi-R1 or R2, whichever higher) detects 35°C or higher.
2) It has elapsed 7 minutes after starting the hot start control.

Mitsubishi FDT71VH Specifications

General

Brand	Mitsubishi
Model	FDT71VH
Category	Air Conditioner
Language	English