aquatermic XK49 User manual

Owner's Manual
Commercial Air Conditioners
Wired Controller XK49

User Notices
◆The power supply 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.
◆Do not operate the wired controller with wet hands.
◆In one system network, you must set one indoor unit as the master indoor unit,
Other indoor units are slave indoor units .
◆The operation mode of the system is basing on that of master indoor unit. Master
indoor unit can switch to any modes, while slave unit can’t switch to the mode
that is conflicting with master indoor unit.
◆When master indoor unit changes mode which cause operation mode of
slave indoor unit conflicts with that of system, the operation mode of slave unit
will switch to the operate mode of system automatically.
◆When two wired controllers control one (or more) indoor unit(s), the address of
wired controller should be different.
◆This wired controller should be set as slave controller when it is used to control
one (multiple) indoor unit (s) with other types of wired controller (s).
◆This wired controller is equipped with gate control interface, which can be
connected with gate control system to switch unit on/off by inserting or removing
a card.
◆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.

Contents
1. DISPLAY ..............................................................................1
1.1 LCD OF WIRED CONTROLLER.........................................................2
1.2 LCD DISPLAY INSTRUCTION ............................................................3
2. BUTTONS ............................................................................5
2.1 BUTTON GRAPHICS...........................................................................5
2.2 FUNCTION INSTRUCTION OF BUTTONS.........................................6
3. INSTALLATION AND COMMISSIONING.............................6
3.1 INSTALLATION OF WIRED CONTROLLER.......................................7
3.2 COMMISSIONING.............................................................................19
4. OPERATION INSTRUCTIONS...........................................28
4.1 ON/OFF..............................................................................................28
4.2 MODE SETTING................................................................................29
4.3 TEMPERATURE SETTING................................................................29
4.4 FAN SETTING....................................................................................31
4.5 SWING SETTING ..............................................................................31
4.6 REMOTE SHIELD FUNCTION..........................................................31
4.7 CHILD LOCK FUNCTION..................................................................32
4.8 GATE-CONTROL FUNCTION...........................................................32
5. ERROR DISPLAY...............................................................33
5.1 TABLE OF ERROR CODES FOR OUTDOOR UNIT ........................34
5.2 TABLE OF ERROR CODES FOR INDOOR UNIT ............................36
5.3 TABLE OF STATUS CODES .............................................................37
5.4 TABLE OF DEBUGGING CODES.....................................................40

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1. DISPLAY
Fig. 1.1 Appearance of wired controller

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1.1 LCD of Wired Controller
Fig. 1.2 LCD graphics of wired controller

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1.2 LCD Display Instruction
Table 1.1 LCD display instruction
No.
Symbols
Instructions
1
*
Auto mode (Under Auto mode, the indoor units will automatically select their
operating mode as per the temperature change so as to make the ambient
comfortable.)
2
Current set fan speed (including auto, low speed, medium-low speed, medium
speed, medium-high speed, high speed and turbo seven status)
3
Cooling mode
4
Dry mode
5
Fan mode
6
Heating mode
7
When inquiring or setting project number of indoor unit, it displays "NO." icon
8
Display "SET" icon under parameter setting interface
9
Up and down swing function
10
Display "CHECK" icon under parameter view interface
11
Gate-control function
12
Child Lock status

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13
Outdoor unit defrosting status
14
Shielding status
15
It shows the setting temperature value(In case the wired controller is
controlling a Fresh Air Indoor Unit, then the temperature zone will display
FAP)
16
One wired controller controls multiple indoor units
17
Memory status (The indoor unit resumes the original setting state after power
failure and then power recovery)
18
Current wired controller connects master indoor unit
19
The data display area will help to show the parameters checked or set
20
It indicates the current wired controller is the slave wired controller
(address of wired controller is 02)

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2. BUTTONS
2.1 Button Graphics
Fig. 2.1 Button graphics

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2.2 Function Instruction of Buttons
Table 2.1 Function instruction of buttons
No.
Buttons
Instructions
1
SWING
It’s used to set swing status.
2
FAN
Switch among auto, low speed, low-medium speed, medium speed,
medium-high speed, high speed and turbo status
3
ON/OFF
Indoor unit On/Off
4
(1) Set operating temperature of indoor unit
(2) Set and inquiry parameter
5
6
MODE
Switch Auto, Cooling, Dry, Fan, Heating modes for indoor unit. (Note: The Floor
Heating, 3D Heating and Space Heating function icon will show up when the
unit has those functions.)
4+5
+
Simultaneously press “ ” and “ ” for 5s to enter or cancel the Child Lock
function.
3. INSTALLATION AND COMMISSIONING
Fig. 3.1 Dimension of wired controller

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Fig. 3.2 Parts of wired controller
No.
1
2
3
4
Name
Junction box embedded in
the wall
Soleplate of wired
controller
Screw
M4*25
Panel of wired
controller
Q'ty
User-supplied
1
2
1
3.1 Installation of Wired Controller
3.1.1 Communication Line Selection
Fig. 3.3 Length of communication line

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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
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.
Note:
①If the air conditioner is installed at the strong electromagnetic interference
place, communication line of the wired controller must use shielding twisted
pair.
②Materials of communication line for wired controller must be selected
according to this instruction manual strictly.
3.1.2 Installation requirements
(1) Prohibit installing the wired controller at wet places.
(2) Prohibit installing the wired controller at direct sunshine places.
(3) Prohibit installing the wired controller at the place near high temperature
objects or water-splashing places.

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(4) Prohibit installing the wired controller at the place where faces forward to the
window. Prevent abnormal work due to the interference from the other wired
controller around.
3.1.3 Wiring Requirements
3.1.3.1 Wiring between wired controller and indoor network
There are four network wiring methods between wired controller and indoor unit:
Fig. 3.4 One wired controller controls Fig. 3.5 Two wired controllers
one indoor unit control one indoor unit

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Fig. 3.6 One wired controller controls multiple indoor units simultaneously
Fig. 3.7 Two wired controllers control multiple indoor units simultaneously

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Wiring instructions:
(1) When one wired controller controls multiple indoor units simultaneously, the
wired controller can connect to any one indoor unit, but the connected
indoor unit must be the same series indoor unit. The total quantity of indoor
unit controlled by wired controller can't exceed 16 sets, and the connected
indoor unit must be within the same indoor unit's network. Wire controller
must set quantity of group control indoor units. Please refer to 3.2.3
Parameters Setting.
(2) When two wired controllers control one indoor unit, the addresses of those
two wired controllers should be different. Please refer to 3.2.3 parameter
setting.
(3) When two wired controllers control multiple indoor units, wired controller can
connected to any one indoor unit, while the connected indoor unit should be
the same series indoor unit. The addresses of those two wired controllers
should be different. Please refer to 3.2.3 parameter setting. The total
quantity of indoor unit controlled by wired controller can't be more than 16
sets and all connected indoor units must be within the same indoor unit
network. Wire controller must set quantity of group control indoor units.
Please refer to 3.2.3 Parameters Setting.
(4) When one (or two) wired controller(s) control(s) multiple indoor units at the
same time, the controlled indoor unit's setting should be the same.
(5) Wiring of wired controller and indoor unit network must be according to one
of the four wiring method as shown in fig 3.4-3.7. As for the connection
method shown in fig 3.5 and 3.7, there should be only one master wired

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controller (address is 01) and one slave wired controller (address 02). 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.
3.1.3.2 Wiring between wired controller and gate control system
This model wired controller has gate control interface, which can be connected
with gate control system to switch unit on/off by inserting or removing a card. If you
want to control indoor unit’s functions through gate control, please pay attention to
the wire connection between wired controller and gate control system (gate-control
device):
(1) Never connect the power cord of outdoor or indoor units directly to the
gate-control device in order to realize gate control function by connecting or
disconnecting power of indoor and outdoor units with a card. The following
two figures demonstrate the wrong connection of wires between units and
gate control system:

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Figure 3.8 Wrong Connection 1 Figure 3.9 Wrong Connection 2
of Units and Gate Control of Units and Gate Control
(2) After wired controller is connected with gate-control device, indoor unit’s on
and off can be controlled with a card: remove the card to turn unit off; insert
the card to restore unit to the condition prior to card removal. The gate
control card can control all indoor units that are linked with the wired
controller.

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Connection of wired controller and gate control system is as follow:
Figure 3.10 Connection fashion 1 of Wired Controller and Gate Control
(3) If two wired controllers are controlling one (or more) indoor unit(s), just
connect one wired controller with the gate control system to control indoor
unit’s ON and OFF via the gate control card. As the following figures:

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Figure 3.11 Connection fashion 2 of Wired Controller and Gate Control
Note:
①Wired controller 2 in figure 3.11 can be set as master controller or slave
controller;
②Wired controller 1 in figure 3.11 can be model XK49 or other models.
(4) Power input of gate control card insertion/removal device supported by
wired controller: AC 100-240V~50/60Hz, DC 5~24V. In practice, connect
the gate control output power cord with the corresponding power supply
interface of wired controller according to the type of output power of
gate-control device (Please refer to 3.1.4 Installation for wire connection of
specific interface). Wired controller will judge the placing and absence of
card by detecting the power supply of gate-control device. The detecting
process is as follow:

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(5) Inserting or removing the gate control card is like connecting or
disconnecting power of the gate control device. When the card is inserted,
the device supplies power AC100-240V/DC5-24V to wired controller which
identifies card insertion. When the card is removed, the device stops
supplying power AC100-240V/DC5-24V to wired controller which identifies
card removal. Figure 3.12 and figure 3.13 demonstrate wired controller
connecting gate control power of AC100-240V or DC5-24V:
Figure 3.12 Wired Controller Connecting to Gate Control AC100-240V
Figure 3.13 Wired Controller Connecting to Gate Control DC5-24V
Note: Users shall prepare the gate-control device by themselves.

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3.1.4 Installation
Fig. 3.14 Installation diagram for wired controller
Fig. 3.14 is the simple installation process of wired controller; please pay
attention to the following items: