Gree CE53-24/F(C) User manual

Owner's Manual
Commercial Air Conditioners
Model:
CE53-24/F(C)
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 [email protected]om.cn or 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.
Multi-VRF Centralized
Controller

User Notice
All indoor units must be supplied with unified power.
Make sure communication cord is connected with the proper port, otherwise there
may occur communication malfunction.
Never knock on, throw or frequently detach the centralized controller.
Never operate the centralized controller with wet hands.
Never scratch the screen of centralized controller by hard or sharp objects.
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.
All photos in this manual is only for reference, please refer to the actual product for
the final effect.

Contents
1 INSTALLATION....................................................................... 1
1.1 Installation Requirements...........................................................2
1.2 Wiring Instructions .....................................................................3
1.3 Wiring Instructions .....................................................................6
1.4 Removal Procedure ...................................................................8
2 DISPLAY AND WORKING INSTRUCTIONS .......................... 8
2.1 Main Page Display and Buttons.................................................9
2.2 General Buttons.........................................................................9
2.3 Buttons Working Instructions....................................................10
3 FUNCTIONS DESCRIPTION ................................................ 11
3.1 All ON/OFF .............................................................................. 11
3.2 Single Unit Control................................................................... 11
3.3 Water /Floor control..................................................................13
3.4 e-Control Function ...................................................................18
3.5 Group Control ..........................................................................19
3.6 Schedule Management............................................................20
3.7 Local Setting............................................................................22
3.8 Engineering Setting..................................................................24
3.9 Operation Notice......................................................................25

Multi-VRF Centralized Controller
1
1 INSTALLATION
Fig.1.1 Parts of Centralized Controller
No.
①
②
③
④
Name
Touch 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
Name
Screw M4×12 (used to
secure ground wire)
Screw ST4.2×16 FA (used to
secure electric box cover)
Electric box
cover
Matching
resistance
QTY
1
4
1
1
Unit: mm
Fig.1.2 Dimension of Centralized Controller

Multi-VRF Centralized Controller
2
Fig.1.3 Dimension of Electric Box Cover
1.1 Installation Requirements
(1) Communication cord of the centralized controller 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)
Total length
L(m)
Remark
Indoor
network
Light/Ordinary
polyvinyl chloride
sheathed cord.
(60227 IEC 52
/60227 IEC 53)
IEC 60227-
5:2007
≥2×0.75
L≤1000
If cord size is 2×1 mm2,
communication cord can be
stretched longer. But the
total length can’t exceed
1500m.
Outdoor
network
L≤250
Total length of
communication cord can’t
exceed 250m.
Notice:
①The cord shall be Circular cord (the cores shall be twisted together).
②If unit is installed in places with intense magnetic field or strong interference, it
is necessary to use shielded wire.
(2) 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.

Multi-VRF Centralized Controller
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1.2 Wiring Instructions
(1) Wiring Ports
Port print
G1, G2
F1, F2
A2, B2
A3, B3
L, N
Meaning
CAN comm.
port
【reserved port】
【reserved port】
【reserved port】
Power
port
(2) Power Supply
The smart centralized controller shall use independent power supply.
The range of input voltage: 110～240 VAC; Frequency range: 50/60Hz
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) Connection Method
There are three methods to connect centralized controller with the air conditioning
system.
Method 1: Connect with indoor network
Fig.1.4 Centralized Controller Connected with Indoor Network

Multi-VRF Centralized Controller
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Method 2: Connect with outdoor network
Fig.1.5 Centralized Controller Connected with Outdoor Network
Method 3: Connect with heat recollection mode converter Network
Fig. 1.6 Centralized Controller Connected with Heat Recollection Mode Converter
Network

Multi-VRF Centralized Controller
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Wiring Instructions:
①The smart centralized controller is applicable to multi VRF units, connectable
with network of indoor units or the network of outdoor units or mode converter
network. One centralized controller can control up to 16 sets of outdoor
system and up to 32 sets of indoor unit.
②If the centralized controller is to be connected with the network of indoor units,
connect according to fig.1.4. 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.
③If the centralized controller is to be connected with the network of outdoor
units, connect according to fig.1.5. 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.
④The 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".
⑤If the centralized controller is to be connected with the network of heat
recollection, connect according to Fig. 1.6. 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:
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 “00000”, 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:

Multi-VRF Centralized Controller
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SA2
Address
NO.
DIP1
DIP2
DIP3
DIP4
DIP5
1
0
0
0
0
2
0
1
0
0
0
3
0
0
1
0
0
4
0
0
0
1
0
5
0
0
0
0
1
6
1
0
0
0
1
7
0
1
0
0
1
8
0
0
1
0
1
9
0
0
0
1
1
10
1
0
0
1
1
11
0
1
0
1
1
12
0
0
1
1
1
13
1
0
1
1
1
14
0
1
1
1
1
15
1
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.
1.3 Wiring Instructions
Fig.1.7 Installation Diagram

Multi-VRF Centralized Controller
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Fig.1.8 Diagram of Wooden or Plastic Plug
Fig. 1.9 Installation Holes of the Electric Box Rear Cover
Fig.1.7 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.1.8.
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.1.9.
(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 (2), locate the electric box rear cover to the installation holes of the wall
with screw ST4.2×16 FA.
(6) In step (6), pull 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