Asami CE52-24/F User manual

Owner's Manual
Commercial Air Conditioners
Model:
CE52-24/F(C)
Thank you for choosing Air Conditioners, please read this owner’s manual
carefully before operation and retain it for future reference.
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
1.2WIRING INSTRUCTIONS...................................................................................... 3
1.3 INSTALLATION PROCEDURE ............................................................................... 6
1.4 REMOVAL PROCEDURE...................................................................................... 8
2 DISPLAY AND WORKING INSTRUCTIONS............................................................... 8
2.1 MAIN PAGE DISPLAYAND BUTTONS .................................................................. 9
2.2 GENERAL BUTTONS........................................................................................... 9
2.3 BUTTONS WORKING INSTRUCTIONS................................................................ 10
3 FUNCTIONS DESCRIPTION .................................................................................. 12
3.1 HELP INFO........................................................................................................ 12
3.2 INDOOR UNIT.................................................................................................... 12
3.3 SINGLE UNIT CONTROL ................................................................................... 13
3.4ALL-CONTROL FUNCTION ................................................................................ 16
3.5 GROUP CONTROL............................................................................................ 17
3.6 SCHEDULE MANAGEMENT............................................................................... 18
3.7 LOCAL SETTING ............................................................................................... 21
3.8 ENGINEERING SETTING ................................................................................... 23
3.9ABOUT.............................................................................................................. 24

Multi-VRF Centralized Controller Operation Manual
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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
earthing wire)
Screw ST4.2×16 FA
(used to secure electric box
cover)
Electric box
cover
Matching
resistance
QTY
1
4
1
1
Fig.1.2 Dimension of Centralized Controller

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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/AWG))
Total length
L(m/feet)
Remark
Indoor
network
Light/Ordin
ary
polyvinyl
chloride
sheathed
cord.
(60227
IEC 52
/60227 IEC
53)
IEC
60227-
5:2007
2×0.75~
2×1.25
(2×AWG18~
2×AWG16)
L≤1000m
(L≤3280-5/6feet)
If cord size is 2×1mm2
(2×AWG16),communica
tion cord can be
stretched longer. But the
total length can’t exceed
1500m(4921-1/4feet).
Outdoor
network
L≤250
(L≤820-1/5feet)
Total length of
communication cord
can’t exceed
250m(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) 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.

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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 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) 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

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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

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Wiring Instructions:
a. 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.
b. If 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.
c. If 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.
d. 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".
e. If 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:
a) 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.
b) 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.
c) 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.
d) 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

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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
e) 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 Installation Procedure
Fig.1.7 Installation Diagram

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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 ⑥pull out the wire connecting the touch screen and controller’s rear
cover. Put the touch screen on a safe place.

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(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.
1.4 Removal Procedure
Fig.1.10 Diagram of Removal
2 DISPLAY AND WORKING INSTRUCTIONS
Fig.2.1 Main Page

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2.1 Main Page Display and Buttons
No.
Name
Instructions
1
Time zone
The present date, week and time
2
Help button
Press this button to enter Help Info page
3
Setting button
Press this button to enter setting page
4
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.
5
Schedule button
Press this button to enter schedule page
6
Group button
Press this button to enter group page
7
All-Control button
Press this button to enter All-Control page
8
Indoor Unit button
Press this button to enter indoor unit page
2.2 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

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Edit
Press this button to
edit the group or
schedule
Delete
Press this button
to delete group or
schedule
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
Backward
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
Backward
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
2.3 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 2.2 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):

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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.
(5) Zone button
On the management pages of schedule, as indicated in fig.2.2 (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.
Fig.2.2 Zone Buttons on the Homepage of Schedule

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3 FUNCTIONS DESCRIPTION
3.1 Help Info
On the homepage, press to enter into help info page.
User can view the information of the simple operation manual.
3.2 Indoor Unit
On the homepage, press to enter into indoor unit page.
Fig.3.1 Page of Indoor Unit
No.
Name
Instructions
⑴
IDU display
Display in separate page the list of indoor units that are
controlled by the centralized controller.
⑵
IDU icon
Press the button to enter the page of indoor unit control.
Light icon indicates that IDU is on while the dark icon indicated
that IDU is off.
⑶
Master IDU
This icon will be displayed when indoor unit is the master indoor
unit of the system.
⑷
Set temperature
When indoor unit is on, set temperature will be displayed here.

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No.
Name
Instructions
⑸
Error status
Error icon will be displayed if indoor unit is malfunctioning.
⑹
Operation mode
When indoor unit is on, the current operation mode will be
displayed:
Auto Cooling Dry Fan
Heating Floor heating Space heating 3D
heating
⑺
Shield status
This icon will be displayed when indoor unit is in shield status.
⑻
IDU Sort
Press the button to enter into the idu sort page.
⑼
All Off button
Press this button to turn off all air conditioning equipment.
⑽
Right page
button
Press this button to show the next page idu list.
⑾
Current page
The total pages of the controlled indoor unit and the current
page.
⑿
Left page button
Press this button to show the previous page idu list.
⒀
All On button
Press this button to turn on all air conditioning equipment.
⒁
IDU icon
Display the icon of the indoor unit.
⒂
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.
3.3 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.
Parameters of single unit control include parameters of general control and
advanced control.
3.3.1 General Control Parameters

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Fig.3.2 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 unit’s 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:
①Auto mode can only be set in the master indoor unit.
②Heat 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

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Press the fan speed button to set unit’s fan speed.
Note: Unit defaults to low fan speed in drying mode. Fan speed cannot be set in
drying or floor heating mode.
(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.
3.3.2 Advanced Control Parameters
Press Advance Button to enter the advance page.
Press icon buttons to turn on or off the corresponding function.
Fig.3.3 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

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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.
3.4 All-Control Function
On the homepage, press to enter into the page of All-Control.
Fig.3.4 All-Control Page
All-Control Function can operate all indoor units as below：
(1) ON/OFF
Press ON/OFF button to turn on or turn off all units.
When turning off the unit, the setting for mode, temperature, fan speed and swing
is unavailable.
(2) Mode setting
Press mode button to set operation mode.
(3) Temperature setting
Press UP or Down button to adjust temperature. Press this button once to increase
or decrease temperature 1℃. Press or hole this button and the temperature will

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increase or decrease continuously.
(4) Fan speed setting
Press or drag the sliding bar of fan speed to set fan speed.
Note: Fan speed defaults at low speed under drying mode and it can’t be adjusted.
(5) Swing setting
Press “left&right” swing or “up&down” swing button to turn on or turn off swing
function.
(6) Send order
Press button to send out the All-Control order.
3.5 Group Control
On the homepage, press to enter into the page of group function.
Fig.3.5 Group Page
No.
Name
Instructions
①
Group display
Display in separate page the list of groups that are
controlled by the centralized controller. Sliding up or
down can turn over the page.
②
Group names
Display the names of every group.
③
Add group button
Press the button to add a group.