Gree XK55 User manual

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Thank you for choosing Air Conditioners, please read this owner’s manual carefully before operation
and retain it for future reference.If you have lost the Owner’s Manual, please contact the local agent
or visit www.gree.com or send email to [e-mail] for electronic version.
GREE reserves the right to interpret this manual which will be subject to any change due to product
improvement without further notice.
GREE Electric Appliances, Inc. of Zhuhai reserves the final right to interpret this manual.
User's Manual for Wired
Controller XK55

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User’s Notice
The power supply method for all indoor units must be unified.
Prohibit installing the wired controller at wet or sunshine places.
Do not knock, throw or frequently disassemble the wired controller.
Dot not operate the wired controller with wet hands.
The photos in this instruction manual is only for reference, Please refer to the
actual products for the final effect.
In one system network, you must set one indoor unit as the master indoor unit.
Others are slave indoor unit.
The operation mode for the system is basing on that of master indoor unit.
Master indoor unit can switch the mode freely, while slave indoor unit can’t
switch to the mode which will conflict with the master indoor unit.
When the operation mode of indoor unit is conflicting with that of system
because the master indoor unit is changing mode, the operation mode of
slave indoor unit will switch to the operation mode of system automatically.
When two wired controllers control one (or more) indoor unit(s), the address
of wired controller should be different.
Functions with “*” are optional for indoor units. If a function is not included in
an indoor unit, wired controller can’t set the function, or setting of this function
is invalid to the indoor unit

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CONTENTS
1 Installation Instruction ............................................................1
1.1 Selection requirement for communication wire .........................2
1.2 Installation requirement.............................................................3
1.3 Wiring requirement....................................................................4
1.4 Installation.................................................................................7
1.5 Disassembly..............................................................................8
2 Display Instruction .................................................................9
2.1 Outside view..............................................................................9
2.2 Buttons instruction ..................................................................10
2.3 Icon instruction........................................................................12
3 Operation Instruction ...........................................................13
3.1 Summary.................................................................................13
3.2 Page instruction ......................................................................14
4 Special function explanation ................................................33
4.1 Remote shield function ...........................................................33
4.2 Entrance guard display function..............................................34
5 Abnormal code.....................................................................35
5.1 Code table for outdoor units malfunction ................................35
5.2 Code table for indoor unit malfunction ....................................38

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5.3 Code table for debugging........................................................39
5.4 Code table for state.................................................................40

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1 Installation Instruction
Fig 1.1 Dimension of wired controller
Fig 1.2 Wired controller parts

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No. 1 2 3 4
Name Panel of wired
controller Screw M4X25 Soleplate of wire
controller
Terminal box installed in
the wall
Q’ty 1 2 1 Provided by user
1.1 Selection requirement for communication wire
Fig 1.3 Length of communication wire
Wire material
type
Total length of
communication line
between indoor unit and
wired controller L (m)
Wire
size
(mm2)
Material
standard Remarks
Light/Ordinary
Polyvinyl
chloride
sheathed
cord. (60227
IEC 52
/60227 IEC
53)
L≤250 2×0.75~
2×1.25
IEC
60227-5:
2007
1. Total length of
communication line can't
exceed 250m.
2. The cord shall be
Circular cord (the cores
shall be twisted together).
3. If unit is installed in
places with intense
magnetic field or strong
interference, it is
necessary to use shielded
wire.

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Caution:
①If the air conditioner is installed the place with strong magnetic interference,
the communication wire of wired controller must use shielding twisted pair
wire.
②The communication wire of the wired controller must be selected according to
this manual. Prohibit selecting the communication wire which is not comply
with the requirement of this manual.
③When operating two wire controllers, master wired controller and slave wired
controller can’t be this wire controller.
1.2 Installation requirement
(1). Prohibit installing the wired controller at wet place.
(2). Prohibit installing the wired controller at sunshine place.
(3). Prohibit installing the wired controller at the place where is closing to
high-temperature objects or with splashing water.
(4). Prohibit installing the wired controller at the place where is facing to the
window to prevent the interference from the same model remote controller in
neighbor.

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1.3 Wiring requirement
There are four kinds of wiring method for wired controller and indoor unit:
Fig 1.4 One wired controller controls one
indoor unit
Fig 1.5 Two wires controllers control one
indoor unit

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Fig 1.6 One wired controller controls more indoor units simultaneously
Fig 1.7 Two wired controllers control more indoor units simultaneously

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Wiring instruction:
(1). When one wired controller controls more indoor units at the same time, wired
controller can be connected to any one indoor unit and the connected indoor unit
should be in the same series. The maximum quantity of indoor units controlled by the
wired controller can’t exceed 16 sets and the connected indoor units should be in the
same system. Wired controller should set the Number of IDUs. Please refer to 3.2.12
Engineering Setting Page for the detailed setting method.
(2). When two wired controllers control one indoor unit, the addresses for those
two wired controllers should be different. Please refer to the page of Engineering
Setting for the address of wired controller.
(3). When two wired controllers control more indoor units, the wired controller can
be connected to any one indoor unit. The connected indoor unit should be in the
same series. The addresses for those two wire controllers should be different (set at
3.2.12 Engineering Setting page). The maximum quantity of indoor units controlled
by the wired controller can’t exceed 16 sets and the connected indoor units should be
in the same system. Wired controller should set the Number of IDUs. Please refer to
3.2.12 Engineering Setting Page for the detailed setting method.
(4). When one (or two) wired controller (s) control (s) more indoor units, the
setting for the controlled indoor unit should be the same.
(5). The wiring between wired controller and indoor unit must be according the
wiring method of fig 1.4-1.7. In the wiring method of fig 1.5 and fig 1.7, only one
master wired controller (address 1) and one slave wired controller (address 2) can be

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set. The quantity of wired controller can’t exceed two.
Note:
Series of indoor units include: ①Common Multi VRF Units; ②Fresh Air Units;
③Double-heat Sources Units; ④Combined Units; Except for fresh air units,
double-heat sources units and combined units, the rest of indoor units belong to
common multi VRF units.
1.4 Installation
Fig 1.8 Installation sketch map of wired controller

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Please pay attention to below items:
(1). Please disconnect the power support for indoor unit before installation. The
power must be disconnected during the whole installation process.
(2). Pull out the 2-core dual twisted pair wire from the installation hole on wall and
then pull it through the wiring hole at the back of soleplate plate of wired controller.
(3). Stick the soleplate on the wall and then use screw M4X25 to fix sole plate
and installation hole on the wall together.
(4). Connect the two-core twisted pair wire to H1 and H2 wiring terminal and then
tighten screws.
(5). Finally, bind the panel of wired controller and sole plate of wired controller
together.
1.5 Disassembly
Fig 1.9 Disassembly sketch map of wired controller

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2 Display Instruction
2.1 Outside view
Fig 2.1 Appearance of wired controller

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2.2 Buttons instruction
Fig 2.2 Button diagram

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Button instruction
Number Name Definition
1
Receiving
window of
remote control
signal
It’s used for receiving the signal of remote controller
2 ON/OFF
indicator
Red color indicates the unit is off and white color indicates the
unit is on
3 Temp button It’s used for adjusting operating temperature
4 Mode button It’s used for switching operating mode
5 ON/OFF button It’s used for turning on or turning off the unit
6 Slight touch
button
Short press this button to switch on/off status
Long press this button for 5s to resume touch screen and LCD
7 Cooling button It’s used for selecting cooling mode
8 Heating mode It’s used for selecting heating mode
9 Fan button It’s used for switching fan speed
10 Function button It’s used for entering into next page
11 Status column It’ used for displaying time and starting up functions
12 Temperature
display It’s used for displaying temperature
13 Fan speed
display It’s used for display set fan speed

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2.3 Icon instruction
Mode ( base on the indoor unit)
Display Definition Display Definition
Auto * Cooling
Dry Fan
Heating Floor heating *
3D heating * Space heating *
Function, status
Display Definition Display Definition
Air * Gate-control
Clean Comfort(Reserved
function )
E-heater * Error
Health * Defrost
12-drying Light
Left&right swing * Master indoor unit
Memory Absence
Rapid Quiet
Save Shield
Slave wired controller Sleep
Timer Up&down swing
X-fan Group control

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3 Operation Instruction
3.1 Summary
This wired controller adopts 3.5 inch high-resolution lattice liquid crystal display,
with capacitor type touch screen. Meanwhile, it’s with a slightly touch button used for
turning on or turning off the unit, convenient for installation:
(1). Separation of function pages are realized for clear demonstration and high
readability.
(2). Except the homepage column, there’s view page for viewing the operation
status.
(3). It is with multiple timer function. You can set three weekly timers and one
countdown timer simultaneously. Under weekly timer, you can preset unit-on mode,
fan speed, set temperature and repeat days.
(4). You can set backlight time, lightness, language, etc..
(5). When there’s no operation, it will enter into sleep mode automatically, only
ON/OFF indicator is on (white indicator is on when the unit is turned on and the red
indicator is on when the unit is turned off), which can not only save energy, but also
not affect sleep. At the same time, you can also turn on the ON/OFF indicator through
light function.

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3.2 Page instruction
This wired controller is with clock time display function. For the first operation, if
the system time is different from the current time. You can adjust the time on the
setting page in order to ensure the accuracy of timer operation. Meanwhile, you can
change backlight time, lightness, sound and language according to individual habit.
The instruction for the detailed operation is as below.
3.2.1 Homepage
Unit is turned off Unit is turned on
When turning on the unit, press mode button to switch the mode. After each
pressing of the button, the mode will change in the sequence as below:
Auto-> Cooling-> Dry-> Fan-> Heating-> Floor heating-> 3D heating-> Space
heating-> Auto
Note: Auto mode is only invalid for the indoor unit under main mode.

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After turning on the unit, press ▲▼to adjust operating temperature and
the temperature setting range is 16℃~30℃.
Note: Under auto mode, the temperature adjust button is invalid.
Press ON/OFF button to turn on or turn off the unit.
After turning on the unit, press Fan to select fan speed. After each pressing of
that button, the fan speed will change in below sequence:
Note:
①Under drying mode, the fan speed is defaulted at low speed and it can’t be
adjusted.
②Under floor heating mode, the fan speed is invalid.
Press function button to enter into function page.

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3.2.2 Function page
Sleep function: Indoor unit will enter into sleeping operation status. It will operate
according to the preset sleeping temperature curve to create comfortable sleeping
ambient for improving sleeping quality.
Absence function: Maintain indoor ambient temperature and keep the rapid
heating after the unit is turned on. Absence function can only started up under
heating mode.
Rapid function: Decrease or increase temperature rapidly to reach to the set
value when turning on the unit for improving comfort. Rapid function can only be
started up under cooling or heating mode.
Swing function: It used to turn on or turn off swing function.
After turning on the unit, press Sleep to turn on or turn off sleep function.
Sleep function is invalid under auto, fan and floor heating mode.