Gree GWH18TC-S3DNA1D Service Manual page 50

Service Manual
③ In this mode, TURBO can't be set and fan speed can't be adjusted.
④ In this mode, when compressor operates, fan speed will be adjusted as follows; when compressor stops operation, indoor unit will
operate at blowing residual heat.
When Tindoor amb. ≤9°C, indoor fan operates at high fan speed;
When 9°C ＜ Tindoor amb. ＜ 11°C, indoor fan operates at medium fan speed;
When Tindoor amb.≥11°C, indoor fan operates at low fan speed;
When changing among low high, medium, and low speeds, the minimum operation time is 210 seconds.
⑤ The unit with memory function can memorize 8°C heating mode.
(7)Energysaving Function
① In cooling mode, when receiving command of energysaving sent by remote control, the controller enters energysaving mode; If the
unit is under energysaving mode already, such command will not be executed.
② When remote control is set to display set temperature, "dual 8"nixie tube displays "SE".
③ In this mode, when compressor operates, fan speed will be adjusted according to auto fan mode under energysaving operation;
when compressor stops operation, indoor fan will operate at low speed.
a. When Tamb.≥31°C, indoor fan will operate at super high speed;
b. When 31°C>Tamb.≥Tpreset+3°C, indoor fan will operate at high speed;
c. When Tpreset+1<Tamb.<Tpreset+3°C indoor fan will operate at medium speed;
d. When Tamb.≤Tpreset+1°C indoor fan will operate at low speed;
Note: The switchover among superhigh speed, high speed, medium speed and low speed requires minimum 210seconds of operation.
④ In this mode, set temperature will be automatically adjusted according to actual operation conditions.
3.Other Control
(1)Clock Timer
Timer ON
If timer ON is set during operation of the unit, the unit will continue to operate. If timer ON is set at unit OFF, upon ON time reaches the
unit will start to operate according to previous setting status.
Timer OFF
If timer OFF is set at unit OFF, the system will keep standby status. If timer OFF is set at unit ON, upon OFF time reaches the unit will
stop operation.
Timer Change
Although timer has been set, the unit still can be turned on/off by pressing ON/OFF button of the remote controller. You can also set
the timer once again, and then the unit will operate according to the last setting.
If timer ON and timer OFF are set at the same time during operation of the unit, the unit will keep operating at current status till OFF
time reaches.
If timer ON and timer OFF are set at the same time at unit OFF, the unit will keep off status till ON time reaches.
Each day in future, the system will operate according to preset mode till OFF time reaches and stop operation till ON time reaches. If
ON time and OFF time are the same, OFF command will prevail.
(2)Auto Button
If this button is pressed, the unit will operate in AUTO mode and indoor fan will operate at auto speed; meanwhile, the swing motor
operates. Press this button again to turn off the unit.
(3)Buzzer
Technical Information
Tamb.
11℃
9℃
Tamb.
Med.
Low
Fan speed
11℃
9℃
Low Med.
Fan speed
Tamb.
31℃
Tpreset + 3
Tamb.
Tp reset + 1
31℃
High
Super high
Fan speed
Tpreset + 3
Tp reset + 1
High
Super high
Fan speed
High
High
Med.
Low
Med.
Low
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