Gree R410A Service Manual page 37

c) When the indoor unit works without the wired controller, if the timer is not set for the last remote control
instruction, the system will memorize this last instruction and works following it; if the timer is set, it will be
canceled as the power failure occurs and will have to be reset.
d) When the indoor unit works with the wired controller, it will work as the message sent by the wired
controller after it is powered on again.
7) Selection of the Indoor Temperature Sensor
a) For the duct type indoor unit: Under the COOL, HEAT, DRY, or FAN mode, the return air
temperature sensor is adopted; while under the HEAT mode, it is the receiver temperature sensor.
For the cassette type, floor ceiling type indoor unit: Under all modes, the return air temperature sensor is
adopted.
b) When the duct type, cassette type, or the floor ceiling type indoor unit works with the wired controller, the
ambient temperature sensor can be set in the following four ways:
01: The indoor temperature sensor is set for the return air.
02: The indoor temperature sensor is set for the wired controller.
03: The indoor temperature sensor is set for the wired controller under the HEAT mode, and for the return air
under any other mode.
04: The indoor temperature sensor is set for the return air under the HEAT mode, and for the wired controller
under any other mode.
c) Setting of the Ambient Temperature Sensor of the Wired Controller XK19.
◆ When the unit is off, it is available to go to the debugging status by pressing the "Function" and "Timer"
buttons for five seconds, and the corresponding code will be displayed on the temperature area of the
wired controller. There are four kinds of codes which can be adjusted through the "▼"/"▲" button.
◆ The 03 is the default code. The setting of the ambient temperature sensor of the wired controller should
be memorized.
◆ The "Enter/Cancel" button shall be pressed to confirm and leave the setting. If there is no response to
the last button press within 20 seconds, then the system will quit the setting and go to the normal "Off"
status but with the setting still saved.
8) Switchover of the Defrosting Mode
On condition that the unit is off, if "H1" is not displayed on the wireless controller, then the unit will go to
the setting status of the "Defrosting Mode 1"as it is turned on through the wired controller. Then, once the indoor
unit receives this signal, it will soon send it to the outdoor unit. In contract, if "H1"is displayed, the unit will go
the setting status of the "Defrosting Mode 2", and the indoor unit also will send this signal to the outdoor unit as
soon as it receives it.
On condition that the unit is off, it is available to switch over the "Defrosting Mode 1" and "Defrosting Mode
2" by pressing the "MODE" and "BLOW" buttons simultaneously.
9) Turbo
As soon as the controller receives the "Turbo" instruction, the fan of the indoor unit will run at the high
speed.
10) Blow
Blow Function: It is a function to automatically blow off the moist inside the exchanger of the indoor unit to
prevent mould growing after the unit is shut off.
a) On condition that this function is activated, when the "On/Off" press button is operated, the fan of the
indoor unit will still run for ten minutes (with the symbol "BLOW" displayed). At this time, the fan will stop as
this function is deactivated.
b) This function is unavailable under the AUTO, FAN, and HEAT modes.
Super Free Match
Service Manual
33 CONTROL