Operation Control Function By The Indoor Control - Mitsubishi Heavy Industries FDU45KXE6F-W Technical Manual

9.3 Operation control function by the indoor control

(1) Operations of functional items during cooling/heating
Operation
Functional item
Compressor
4-way valve
Outdoor unit fan
Indoor unit fan
(3)
Drain pump
Notes (1) : Operation
(2) ON during the drain motor delay control.
(3) Drain pump ON setting may be selected with the indoor unit function setting of the wired remote control.
(2) Dehumidifying (DRY) operation
Indoor ambient temperatures and humidity are controlled simultaneously with the relative humidity sensor (HS) and the
suction temperature sensor [Thi-A (or the remote control sensor when it is activated)], which are installed at the suction inlet.
(a) When the operation has been started with cooling, if there is a difference of 2°C or less between the suction and setting
temperatures, the tap of indoor fan is lowered by one tap. This tap is retained for 3 minutes after changing the tap.
(b) After the above condition, when a difference between suction and setting temperature is lower than 3°C, and the relative
humidity is high, the tap of indoor unit fan is lowered by one tap.
When the difference between suction and setting temperature is larger than 3°C, the fan of indoor unit fan is raised by one
tap. This tap is retained for 3 minutes after changing the tap.
(c) When relative humidity becomes lower, the indoor unit fan tap is retained.
(d) In case of the thermostat OFF, the indoor unit fan tap at the thermostat ON is retained.
(3) Timer operation
(a) RC-EX3A
(i) Sleep timer
Set the time from the start to stop of operation. The time can be selected in the range from 30 to 240 minutes (in the
unit of 10-minute).
Note (1) Enable the "Sleep timer" setting from the remote control. If the setting is enabled, the timer operates at every time.
(ii) Set OFF timer by hour
Set the time to stop the unit after operation, in the range from 1 to 12 hours (in the unit of hour).
(iii) Set ON timer by hour
Set the time to start the unit after the stop of operation, in the range from 1 to 12 hours (in the unit of hour). It is
allowed also to set simultaneously the indoor temperature, operation mode, air flow rate and warm-up enabled/
disabled.
(iv) Set ON timer by clock
Set the time to start operation. The time can be set in the unit of 5-minute. This setting can be activated only once
or at every time. It is allowed also to set simultaneously the indoor temperature, operation mode, air low rate and
warm-up enabled/disabled.
Note (1) It is necessary to set the clock to use this timer.
(v) Set OFF timer by clock
Set the time to stop operation. The time can be set in the unit of 5-minute. This setting can be activated only once or
at every time.
Note (1) It is necessary to set the clock to use this timer.
(vi) Weekly timer
Set the ON or OFF timer for a week. Up to 8 patterns can be set for a day. The day-off setting is provided for
holidays and non-business days.
Note (1) It is necessary to set the clock to use the weekly timer.
(vii) Combination of patterns which can be set for the timer operations
Sleep timer
Set OFF timer by hour
Set ON timer by hour
Set OFF timer by clock
Set ON timer by clock
Weekly timer
Note (1) : Allowed
(b) RC-E5
(i) Sleep timer
Set the duration of time from the present to the time to turn off the air-conditioner.
Heating
14
12
12 14 16
Indoor return air temperature (℃)
Cooling
Fan
Thermostat Thermostat
ON OFF
(2)
: Stop / : Turned ON/OFF by the control other than the room temperature control.
Sleep timer Set OFF timer by hour
: Not
Forced thermostat
OFF
18 20 22 24 26 28
Heating
Thermostat Thermostat
ON OFF
/ /
(2) / (2)
118
- -
Set ON timer by hour Set OFF timer by clock Set ON timer by clock
111
- -
'21 • KX-T-386
30
Dehumidifying
Hot start
(Defrost)
/
( )
( )
/
/
/
Thermostat ON:
Thermostat OFF: (2)
'16 • PAC-T-251
Weekly timer