Gree CE52-24/F(C) User manual

Centralized Controller
Model:
CE52–24/F(C)

To Users
Thank you for selecting Gree’s product. Please read this instruction manual
carefully before installing and using the product, so as to master and correctly use
the product. In order to guide you to correctly install and use our product and
achieve expected operating effect, we hereby instruct as below:
(1)This appliance is not intended for use by persons (including children) with
reduced physical, sensory or mental capabilities, or lack of experience and
knowledge, unless they have been given supervision or instruction concerning
use of the appliance by a person responsibility for their safety. Children should
be supervised to ensure that they do not play with the appliance.
(2)This instruction manual is a universal manual, some functions are only
applicable to particular product. All the illustrations and information in the
instruction manual are only for reference, and control interface should be
subject to actual operation.
(3)In order to make the product better, we will continuously conduct improvement
and innovation. We have the right to make necessary revision to the product
from time to time due to the reason of sales or production, and reserve the right
to revise the contents without further notice.
(4)For personal injury or property loss and damage caused by improper operation
such as improper installation and debugging, unnecessary maintenance,
violation of related national laws and rules and industrial standard, and violation
of this instruction manual, etc., we will bear no liability.
(5)The final right to interpret for this instruction manual belongs to Gree Electric
Appliances, Inc. of Zhuhai.

Contents
1 Safety Notices (Please be sure to abide) .................................................. 1
2 User Notice........................................................................................ 1
3 INSTALLATION ..................................................................................2
3.1 Installation Requirements ................................................................3
3.2 Wiring Instructions ......................................................................... 4
3.2.1 Wiring Ports...........................................................................4
3.2.2 Power Supply ........................................................................4
3.2.3 Connection Method Of Multi-VRF(CAN Network)...........................4
3.2.4 Connection Method of Umatch Unit(Modbus network).................... 8
3.3 Installation Procedure ....................................................................9
3.4 Removal Procedure...................................................................... 11
4 DISPLAY AND WORKING INSTRUCTIONS........................................... 11
4.1 Main Page Display and Buttons...................................................... 12
4.2 General Buttons.......................................................................... 12
4.3 Buttons Working Instructions .......................................................... 13
5 FUNCTIONS DESCRIPTION............................................................... 14
5.1 Help Info .................................................................................... 14
5.2 Indoor Unit ................................................................................. 14
5.3 Single Unit Control ....................................................................... 15
5.3.1 General Control Parameters ................................................... 16
5.3.2 Advanced Control Parameters ................................................ 17
5.4 All-Control Function...................................................................... 17
5.5 Group Control ............................................................................. 18
5.6 Schedule Management ................................................................. 20
5.7 Umatch Unit................................................................................ 22
5.7.1 Umatch unit Control .............................................................. 22
5.7.2 General Control Parameters ................................................... 23
5.7.3 Advanced Control Parameters................................................. 24
5.8 Local Setting............................................................................... 25
5.9 Engineering Setting ..................................................................... 26
5.10 About....................................................................................... 27

1
1 Safety Notices (Please be sure to abide)
Warning: If not abide strictly, it may cause severe damage to the unit or the
people.
Note: If not abide strictly, it may cause slight or medium damage to the unit
or the people.
This sign indicates that the operation must be prohibited. Improper
operation may cause severe damage or death to people.
This sign indicates that the items must be observed. Improper operation
may cause damage to people or property.
WARNING!
This product can’t be installed at corrosive, inflammable or explosive environment or
the place with special requirements, such as kitchen. Otherwise, it will affect the
normal operation or shorten the service life of the unit, or even cause fire hazard or
serious injury. As for above special places, please adopt special air conditioner with
anti-corrosive or anti-explosion function.
2 User Notice
(1)All indoor units must be supplied with unified power.
(2)Make sure communication cord is connected with the proper port, otherwise there
may occur communication malfunction.
(3)Never knock on, throw or frequently detach the centralized controller.
(4)Never operate the centralized controller with wet hands.
(5)Never scratch the screen of centralized controller by hard or sharp objects.
(6)If the centralized controller is connected with the outdoor network or the last indoor
unit of the indoor network, then a matching resistance must be connected between
G1 and G2 ports.
(7)the centralized controller Connect with umatch unit,The indoor unit address must
be set within the range from 1 to 36,communication way of umatch unit set long-
distance monitoring mode
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3 INSTALLATION
Parts of Centralized Controller
Figure 3-1 Parts of Centralized Controller
Unit：mm
No. ① ② ③ ④
Nam
eTouch screen
Self-tapping screw ST4.2×9.5
MC（used to secure the rear
cover of controller）
Rear cover
of controller Rubber band
QTY 1 4 1 6
No. ⑤ ⑥ ⑦ ⑧
Nam
e
Screw M4×12
(used to
secure
earthing wire)
Screw ST4.2×16 FA (used to
secure electric box cover)
Electric box
cover
Matching
resistance
QTY 1 4 1 2
Dimension of Centralized Controller
Figure 3-2 Dimension of Centralized Controller
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Dimension of Electric Box Cover
Figure 3-3 Dimension of Electric Box Cover
3.1 Installation Requirements
(1)Communication cord of the centralized controller and Multi-VRF(CAN Network)
must be selected according to the table below. Never use the cable that is not in
compliance with instructions of this manual.
Network Cord type Cord
standard
Cord size
(mm2/
AWG)
Total
length L(m/
feet)
Remark
Indoor
network
Light/
Ordinary
polyvinyl
chloride
sheathed
cord.
(60227
IEC 52
/60227
IEC 53)
IEC 60227-
5:2007
2×0.75~
2×1.25 (2×
AW
G18~2×A
WG16)
L≤1000m
(L≤3280-5/
6feet)
If cord size is
2×1mm2
(2×AWG16),
communication
cord can be
stretched longer.
But the total length
can’t exceed
1500m(4921-1/
4feet).
Outdoor
network
L≤500
(L≤820-1/
5feet)
Total length of
communication
cord can’t exceed
500m(820-1/
5feet).
Notice:
1) The cord shall be Circular cord (the cores shall be twisted together).
2) If unit is installed in places with intense magnetic field or strong interference, it is
necessary to use shielded wire
(2)Communication cord of the centralized controller and Umatch Unit（Modbus net）
must be selected according to the table below
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Cord type Cord size
(mm2)
Cord
standard Note
Two_core five
twisted pair
24AWG
（2×0.6mm）
TIA/EIA-
568-A
When the communication distance
exceeds 800m,the need to
increase the photoelectric isolation
repeter
(3)Never install the centralized controller in the following places:
1) Places with corrosive gas or serious dust, salt mist or oil smoke.
2) Wet and damp places, with direct sunlight.
3) Places near high temperature objects or places where units might be splashed
by water.
3.2 Wiring Instructions
3.2.1 Wiring Ports
Port print G1, G2 F1, F2 A2, B2 A3, B3 L, N
Meaning CAN comm.
port fire alarm port 【reserved
port】
Umatch unit
port
Power
port
3.2.2 Power Supply
(1)The centralized controller shall use independent power supply.
(2)The range of input voltage: 100～240 VAC; Frequency range: 50/60Hz
(3)Select power cord according to the following table. Never use the power cord that
is not in compliance with instructions of this manual.
Cord type Cord standard Cord size
(mm2)
Single-cord soft conductiveunsheathed
cord (60227 IEC 08) IEC 60227-3:2007 1.5
3.2.3 Connection Method Of Multi-VRF(CAN Network)
There are three methods to connect centralized controller with the air conditioning
system.
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Method 1: Connect with indoor network
Figure 3-4 Centralized Controller Connected with Indoor Network
Method 2: Connect with outdoor network
Figure 3-5 Centralized Controller Connected with Outdoor Network
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Method 3: Connect with heat recollection mode converter Network
Figure 3-6 Centralized Controller Connected with Heat Recollection Mode Converter
Network
Wiring Instructions:
(1)The centralized controller is applicable to multi VRF units, connectable with
network of indoor units or the network of outdoor units. One centralized controller
can control up to 16 sets of outdoor system and up to 255 sets of indoor unit.
(2)If the centralized controller is to be connected with the network of indoor units,
connect according to fig.3–4. The controller can connect with any one indoor unit
in series, that is, connect the controller’s G1 and G2 ports with the D1 and D2 ports
correspondingly with communication cords. When the controller is connected with
the terminal unit of indoor network, a matching resistance needs to be added with
the communication cords at the G1 and G2 ports.
(3)If the centralized controller is to be connected with the network of outdoor units,
connect according to fig.3–5. The centralized controller can only be connected with
the terminal system of the outdoor network. A matching resistance needs to be
added with the communication cords at the G1 and G2 ports.
(4)The centralized control address DIP switch (SA2_Addr-CC) indicates the
centralized control address required when different refrigerating systems are
controlled in a centralized manner. The default factory setting is "00000".
(5)If the centralized controller is to be connected with the network of heat recollection,
connect according to Fig.3–6. The method 2 is also applicable to centralized
controller switching in heat recollection network.
If the centralized controller is to be connected with the network of outdoor units, set
the DIP switch according to the following methods:
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1) The DIP switch must be set on the master unit and set the Master Unit Setting
DIP Switch(SA8) to "00".Otherwise, the setting is invalid.
2) On the same refrigerating system, the centralized control address DIP switch
(SA2_Addr-CC) on a non-master unit is invalid, and it is unnecessary to change
the settings.
3) The centralized control address DIP switch (SA2_Addr- CC) on the master unit
of a refrigerating system must be set to “0000/”, and this system is the master
system.
4) The centralized control address DIP switch (SA2_Addr- CC) on the master unit
of other refrigerating systems must be set as follows:
Note: The centralized control address switch of DIP5 invalidation
SA2
Address NO.
DIP1 DIP2 DIP3 DIP4 DIP5
1 0 0 0 / 2
0 1 0 0 / 3
1 1 0 0 / 4
0 0 1 0 / 5
1 0 1 0 / 6
0 1 1 0 / 7
1 1 1 0 / 8
0 0 0 1 / 9
1 0 0 1 / 10
0 1 0 1 / 11
1 1 0 1 / 12
0 0 1 1 / 13
1 0 1 1 / 14
0 1 1 1 / 15
1 1 1 1 / 16
5) The centralized control address DIP switch (SA2_Addr- CC) cannot be the
same between different refrigerating systems. Otherwise, address conflicts may
occur and the unit cannot run properly.
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6) If the address conflict occurs, it will popup the address conflict page.
Note:There are three ways to solve address conflict.
①Enter into an unoccupied address by manually for the conflict address, the
address conflict can be solved after it set up success.
②Press and hold the “Save” button for 5 seconds on the address conflict page,
select reset all the IDU’s address in the system, after entering the
engineering password, system will reassign all the address.
③On the master unit of master system, press “SW3” to enter the to-be-selected
status of function settings, press “SW1 (UP) ” or “SW2 (DOWN) ” to select
the function of “n5 ”, press “SW7” to enter “n5 ” function settings, press
“SW7” again to send the project number offset command.
3.2.4 Connection Method of Umatch Unit(Modbus network)
The centralized controller Connect with Umatch Unit（Modbus network）according
to the below.
Figure 3-7 Centralized Controller Connected with Umatch Unit
Wiring Instructions:
(1)The centralized controller is applicable to Umatch units, One centralized controller
can control up to 36 Umatch units.
(2)If the centralized controller is to be connected with Umatch units, connect
according to fig.3–7. The controller must connect with terminal unit of Umatch unit .
connect the controller’s A3 and B3 ports with the A and B ports correspondingly
with communication cords.a matching resistance needs to be added with the
communication cords at the A3 and B3 ports
(3)The indoor unit address must be set within the range from 1 to 36, and different
from each other. Identicle addresses will lead to communication failure. Below is
the address setting method:
1) Under OFF status, press “Function” and “Mode” on the wired controller
simultaneously for 5S to enter the address setting. Then the display panel will
show its own address number on the temperature display zone. Adjust the
number by pressing the “Up” and “Down” buttons.
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2) When setting is over, press “OK/Cancel” or “Swing/Enter” to save the setting
and exit. Under the setting status, if no action is taken within 20 seconds,
system will exit from the setting and return to the display mode of OFF status.
Setting can’t be saved in this case.
(4)Communication method of umatch units must be long-distance monitoring mode,
else can not communicate with centralized controller, set the way as follows.
1) Under OFF status, press “Function” and “Timer” on the wired controller
simultaneously for 5S to enter the setting of long-distance monitor. Adjust by
pressing the “Up” and “Down” buttons.
2) When setting is over, press “OK/Cancel” or “Swing/Enter” to save the setting
and exit. Under the setting status, if no action is taken within 20 seconds,
system will exit from the setting and return to the display mode of OFF status.
Setting can’t be saved in this case.
Note: Address setting and long-distance monitor setting of unitary units can only
be achieved through wired controllers.
3.3 Installation Procedure
Figure 3-8 Installation Diagram
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Figure 3-9 Diagram of Wooden or Plastic Plug
Figure 3-10 Installation Holes of the Electric Box Rear Cover
Fig.3–8 is a simple installation procedure of centralized controller. Please pay
attention to the following matters:
(1)Before installation, first cut off the power supply of indoor unit. The power must be
cut off during the whole installation process.
(2)During the installation, be careful not to damage to touch screen.
(3)Before installation, please make the following preparations:
1) In case that the centralized controller is installed on wall, dig a hole that is the
size of 180mm×107mm×62mm and peg 4 wooden or plastic plugs on the wall
according to fig.3–9.
2) In case that the centralized controller is installed inside the control cabinet, dig 4
installation holes on the surface of the control cabinet according to fig.3–10.
(4)In step ①, pull out the power core and communication cord, and then lead them
separately from the wire orifice of the electric box rear cover. Never lead the cords
through a same orifice.
(5)In step ①, pull out the power core and communication cord, and then lead them
separately from the wire orifice of the electric box rear cover. Never lead the cords
through a same orifice.
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(6)In step ⑥pull out the wire connecting the touch screen and controller’s rear cover.
Put the touch screen on a safe place.
(7)In step ⑦, connect the communication cords to G1, G2 terminals, and connect the
neutral wire and live wire to the N, L terminal; connect the ground wire to position
on the electric box rear cover . Secure it with screw M4×12.
(8)In step ⑧, locate the controller’s rear cover onto the electric box rear cover with
screw ST4.2×9.5 TC.
(9)In step ⑨, connect the wire between touch screen and controller’s rear cover.
3.4 Removal Procedure
Figure 3-11 Diagram of Removal
4 DISPLAY AND WORKING INSTRUCTIONS
Main Page
Figure 4-1 Main Page
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4.1 Main Page Display and Buttons
No. Name Instructions
1 Time zone The present date, week and time
2Help button Press this button to enter Help Info page
3Setting button Press this button to enter setting page
4
Umatch unit button
Press this button to enter Umatch unit
page
5 Touch button
Press the Touch Button to turn on/off the
screen of centralized controller. Press
and hold the Touch Button for 5sec to
restart to centralized controller.
6Schedule button
Press this button to enter schedule page
7Group button
Press this button to enter group page
8
All-Control button
Press this button to enter All-Control
page
9
Indoor Unit button
Press this button to enter indoor unit
page
4.2 General Buttons
Display Name Meaning Display Name Meaning
Return
Press this button to
return to the previous
page
Cancel
Press this button to
cancel the current
setting and return to
the previous page
Save
Press this button to save
the current setting and
return to the previous
page
Add Press this button to
add schedule
Group
Control
Press this button to
enter Group control
page
IDU Sort Press this button to
enter IDU sort page
Edit Press this button to edit
the group or schedule Delete
Press this button to
delete group or
schedule
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Up
Press this button to
increase value or select
the previous option
Down
Press this button to
decrease value or
select the next option
Left
Press this button to
return back to previous
page
Right Press this button to the
next page
Forward
Page
Shift
On the IDU sort page,
Press this button to
move the selected IDU
forward one page
Backwar
d Page
Shift
On the IDU sort page,
Press this button to
move the selected IDU
backward one page
Forward
Shift
On the IDU sort page,
Press this button to
move the selected IDU
forward one place
Backwar
d Shift
On the IDU sort page,
Press this button to
move the selected IDU
backward one place
Info Press this button to
enter Info page Shield
Press this button to
conduct shield function
of wired controller to
nullify such operation
4.3 Buttons Working Instructions
The centralized controller uses a capacitive touch screen so that user can operate the
units by just touching the screen.
Buttons on the screen are presented in the following ways:
(1)Icon
Icon button can be operated directly. See section 4.2 for more details.
(2)Icon + Text
According to the meaning of words, turn on or off or select a certain function, or
enter a certain page. This type of button has 2 or 3 kinds of status based on the
specific function.
Meaning of status (take Sleep Button as an example):
Thin light indicates invalid/not selectable. Sleep function is invalid and can’t
be selected. Different cases for models.
Light indicates off/not selected. Sleep function is off. Pressing the grey sleep
button can turn on the sleep function.
Dark indicates on/selected. Sleep function is on. Pressing the orange sleep
button can turn off the sleep function.
(3)Sliding
Sliding up/down to slide the group and setting page up&down.
(4)Sliding bar
Press and hold the sliding bar to drag up/down or left/right and to adjust the value.
For example the backlight setting, etc.
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(5)Zone button
On the management pages of schedule, as indicated in fig.4–2 (the home page of
schedule), each rectangle frame constitutes a zone button.
Press the zone button, then the turning on/off of corresponding function or the
corresponding page will pop in.
Figure 4-2 Zone Buttons on the Homepage of Schedule
5 FUNCTIONS DESCRIPTION
5.1 Help Info
On the homepage, press to enter into help info page.
User can view the information of the simple operation manual.
5.2 Indoor Unit
On the homepage, press to enter into indoor unit page.
Figure 5-1 Page of Indoor Unit
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No. Name Instructions
1IDU display Display in separate page the list of indoor units that are
controlled by the centralized controller.
2 IDU icon
l Press the button to enter the page of indoor unit
control.
l Light icon indicates that IDU is on while the dark icon
indicated that IDU is off.
3 Master IDU This icon will be displayed when indoor unit is the
master indoor unit of the system.
4Set temperature When indoor unit is on, set temperature will be
displayed here.
5 Error status Error icon will be displayed if indoor unit is
malfunctioning.
6Operation mode
When indoor unit is on, the current operation mode will
be displayed: Auto Cooling Dry Fan
Heating Floor heating Space heating 3D
heating
7 Shield status This icon will be displayed when indoor unit is in shield
status.
8 IDU Sort Press the button to enter into the idu sort page.
9 All Off button Press this button to turn off all air conditioning
equipment.
10 Right page button Press this button to show the next page idu list.
11 Current page The total pages of the controlled indoor unit and the
current page.
12 Left page button Press this button to show the previous page idu list.
13 All On button Press this button to turn on all air conditioning
equipment.
14 IDU icon Display the icon of the indoor unit.
15 IDU name Display the name of the indoor unit.
Press the button to enter the IDU sort page.
Select one indoor unit , press the left or right button at the bottom of the screen to
switch the display of the indoor units.
5.3 Single Unit Control
On the indoor unit control page or group page, press the icon of indoor unit to enter
the single unit control.
Press the icon of indoor unit for 5 seconds to pop up the name set of the selected
indoor unit.
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Parameters of single unit control include parameters of general control and advanced
control.
5.3.1 General Control Parameters
Figure 5-2 Control Page of Single IDU
(1)ON/OFF
Press the on/off button to turn unit on or off.
When unit is turned off, mode, temperature, fan speed and swing can’t be set.
(2)Mode setting
Press the Mode buttons to set umatch unit operation mode.
Modes for indoor units of different series are not all the same.
If a certain mode is not available in the indoor unit, the icon of the corresponding
mode cannot be selected.
Note:
1) Auto mode can only be set in the master indoor unit.
2) Heat recollection system have no master indoor unit. When the indoor unit of
the same branch is connected into one indoor unit, the auto mode can be set;
when the quantity of indoor unit in the same branch is more than one set, the
auto mode cannot be set; other modes can be freely switched.
(3)Temperature setting
Press the up or down buttons to adjust temperature. Each time pressing the button
will increase/decrease the temperature by 1. Holding down the button can
increase/decrease temperature continuously.
Pressing the button can display the “indoor temp” and “outdoor temp”.
(4)Fan speed setting
Press the fan speed button to set umatch unit fan speed.
Note: Unit defaults to low fan speed in drying mode. Fan speed cannot be set in
drying or floor heating mode.
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(5)Swing setting
Pressing the button “Up&Down Swing” or “Left&Right Swing” can turn on or off the
swing function.
Note: Swing types for indoor units of different series are not all the same.
(6)Malfunction View
When indoor unit fails to function well, the will turn red. then press the button to
view the information of malfunctions.
5.3.2 Advanced Control Parameters
Press Advance Button to enter the advance page.
Press icon buttons to turn on or off the corresponding function.
Figure 5-3 Advance Page
(1)Functions of Sleep, Quiet, Auto Quiet, E-Heater, Absence, Rapid and Save can
only be effective when unit is turned on.
(2)When sleep function is on, auto quiet function will be turned on subsequently.
Sleep function will not be effective under auto, fan or floor heating mode.
(3)Absence function can only be turned on in heating mode. When absence function
is on, set temperature is 8℃.
(4)Rapid cool function can only be effective in cool mode. Likewise, rapid heat
function can only be effective in heat mode.
(5)When shield all function is on, other shield buttons will be invalid.
(6)Note: When centralized controller is matching with different units, some functions
will also be different for different unit.
5.4 All-Control Function
On the homepage, press enter into the page of All-Control.
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