Mitsubishi Daiya SRC25GZ-L1, User Manual, Page: 19 / 50

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SRK-GZ
(5) Outline of heating operation
(a) Air flow selection
(i) Frequency of inverter changes within the range of selected air flow.
(4) Comfort timer setting
If the timer is set at ON when the operation select switch is set at the cooling or heating, or the cooling or heating in auto mode
operation is selected, the comfort timer starts and determines the starting time of next operation based on the initial value of 15
minutes and the relationship between the room temperature at the setting time (temperature of room temperature sensor) and the
setting temperature. (Max. 60 minutes)
Corrects the starting time of next operation by
calculating the temperature difference.
(Example) Heating
Setting temperature
Room temperature
Operation starting time
Time
Setting time
15 min. 10 min. 5 min.
earlier earlier earlier
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If the difference (= Setting temperature – Room tempera-
ture) is 4ºC, the correction value is found to be +5 min-
utes from the table shown above so that the starting time
of next operation is determined as follows:
15 min. e 5 min. = 20 min. earlier
↑ ↑
Current operation Correction value
start time
Operation mode Operation start time correction value (Min.)
3 < Room temp. – Setting temp. 1 < Room temp. – Setting temp. 3 Room temp. – Setting temp. 1
At cooling
+5 No change –5
3 < Setting temp. – Room temp. 2 < Setting temp. – Room temp. 3 Setting temp. – Room temp. 2
At heating
+5 No change –5
Notes (1) At 5 minutes before the timer ON time, operation starts regardless of the temperature of the room temperature sensor (Th1).
(2) This function does not actuate when the operation select switch is set at the dehumidifying as well as the dehumidifying in the auto mode.
However, the operation of item (1) above is performed during the dehumidifying in the auto mode.
(3) During the pleasant reservation operation, both the operation lamp and timer lamp illuminate and the timer lamp goes off after expiration of the timer, ON setting
time.
Model
Air flow selection
SRK25GZ-L1 SRK35GZ-L1 SRK502Z-L
Auto Frequency 34~110Hz 34~110Hz 14~150rps
Air flow
Depends on frequency. Depends on frequency. Depends on frequency.
HI Frequency 34~110Hz 34~110Hz 14~150rps
Air flow 5/6th speed 5~7th speed 6~8th speed
MED Frequency 34~80Hz 34~94Hz 14~110rps
Air flow
5th speed fixed 5th speed fixed 4~7th speed
LO Frequency 34~50Hz 34~58Hz 14~50rps
Air flow
3rd/4th speed 3rd speed fixed 2~5th speed
(ii) When the defrosting, protection device, etc. is actuated, operation is performed in the corresponding mode.
(iii) Outdoor unit blower operates in accordance with the frequency.
(b) Details of control at each operation mode (pattern)
(i) Fuzzy operation
Deviation between the room temperature setting correction temperature and the suction air temperature is calculated in
accordance with the fuzzy rule, and used for control of the air capacity and the inverter frequency.
(ii) Heating thermostat operation
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Operating conditions
If the frequency obtained with the fuzzy calculation drops below -24 Hz (rps) during the heating fuzzy operation,
the operation changes to the heating thermostat operation.
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Detail of operation
Inverter frequency 0Hz (rps) [Comp. stopped]
Indoor fan
Hot keep normal mode
→
1st speed
Outdoor fan Stop
Flap
Horizontal