Gree CE52-24/F(C) Bedienungsanleitung

Owner's Manual

Original Instructions

Commercial Air Conditioners

Centralized Controller

Model:

CE52-24/F(C)

To Users

Thank you for selecting Gree 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) All the illustrations and information in the instruction manual are only for

reference. In order to make the product better, we will continuously

conduct improvement and innovation. If there is adjustment in the product,

please subject to actual product.

(4) If the product needs to be installed, moved or maintained, please contact

our designated dealer or local service center for professional support.

Users should not disassemble or maintain the unit by themselves,

otherwise it may cause relative damage, and our company will bear no

responsibilities.

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 ..................................................................5

3.3 Installation Procedure...........................................................14

3.4 Removal Procedure ..............................................................16

4 Display and Working Instructions..................................16

4.1 Main Page Display and Buttons............................................17

4.2 General Buttons....................................................................18

4.3 Buttons Working Instructions ................................................19

5 Functions Description.....................................................21

5.1 Help Info................................................................................21

5.2 VRF Unit ...............................................................................21

5.3 Single Unit Control................................................................22

5.4 Water/Floor Control...............................................................25

5.5 Fresh Air Control...................................................................30

5.6 All-Control Function...............................................................32

5.7 Group Control .......................................................................34

5.8 Schedule Management.........................................................35

5.9 L-CAC&Split Unit ..................................................................38

5.10 Local Setting.......................................................................42

5.11 Engineering Setting.............................................................44

5.12 About...................................................................................46

Centralized Controller

1 Safety Notices (Please be sure to abide)

WARNING:If not abide them strictly, it may cause severe damage to the

unit or the people.

NOTE:If not abide them strictly, it may cause slight or medium damage to

the unit or the people.

This sign indicates that the items 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 the above special places, please adopt special air conditioner

with anti-corrosive or anti-explosion function.

2 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.

the centralized controller Connect with L-CAC&Split unit, The indoor unit

address must be set within the range from 1 to 36, communication way of

L-CAC&Split unit set long distance monitoring mode.

Centralized Controller

3 Installation

Fig.3.1 Parts of Centralized Controller

No. ①②③④

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

No. ⑤⑥⑦⑧

Name

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

Centralized Controller

Unit:mm

Fig.3.2 Dimension of Centralized Controller

Unit:mm

Fig.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.

Centralized Controller

Network

Cord

type

Cord

standard

Cord size

(mm

/AWG)

Total length

L(m/feet)

Remark

Indoor

network

Light/

Ordinary

polyvinyl

chloride

sheathe

d cord.

(60227

IEC 52

/60227

IEC 53)

IEC

60227-

5:2007

2×0.75~

2×1.25 (2×

AWG18~2×

AWG16)

L≤1000m

(L≤3280-5/6

feet)

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≤820-1/5f

eet)

Total length of

communication cord

can’t exceed

500m(820-1/5feet).

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) Communication cord of the centralized controller and L-CAC&Split Unit

(Modbus net) must be selected according to the table below.

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.

Centralized Controller

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】L-CAC&Split

unit port Power

port

3.2.2 Power Supply

The centralized controller shall use independent power supply.

The range of input voltage: 100~240 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

3.2.3 Connection Method of Multi-VRF (CAN Network)

There are three methods to connect centralized controller with the Multi-VRF

system.

Method 1: Connect with indoor network

Fig.3.4 Centralized Controller Connected with Indoor Network

Centralized Controller

Method 2: Connect with outdoor network

Fig.3.5 Centralized Controller Connected with Outdoor Network

Method 3: Connect with heat recollection mode converter Network

Fig. 3.6 Centralized Controller Connected with Heat Recollection Mode Converter

Network

Centralized Controller

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 centralized controller can only be 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:

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:

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