Sinclair MC-D09AI User manual

USER'S MANUAL
MULTI COMBI SERIES
DUCT MC-D09,12,18,21,24AI



User Notice
◆The total capacity of the indoor units which runs at the same time can not exceed 150% of
that of the outdoor units; otherwise, the cooling (heating) effect of each indoor unit would be poor.
◆Switch the main power on 8 hours before start the unit, helpful for a successful startup.
◆It is a normal phenomenon that the indoor unit fan will still run for 20~70 seconds after the
indoor unit receives the “stop” signal so as to make full use of after-heat for the next operation.
◆ When the running modes of the indoor and outdoor units conict, it will be indicated on
the display of the wired controller in ve seconds and then the indoor unit will stop. In this case,
they can back to the normal condition by harmonizing their running modes: the cooling mode is
compatible with the dehumidifying mode and the fan mode can go with any other mode. If the
supply power fails when the unit is running, then the indoor unit will send the “start” signal to the
outdoor unit three minutes later after power recovery.
◆During installation, the communication cable and the power cord must not be twisted
together but instead separated with an interval of at least 2cm; otherwise the unit is likely to run
abnormally.
This product must not be disposed together with the domestic waste. This product
has to be disposed at an authorized place for recycling of electrical and electronic
appliances.
Thank you for purchasing Sinclair air conditioners. Before use, please read this manual
carefully and keep it properly for further reference.

Wired Controller XK19
1
ⅠWired Controller XK19
1 Wired Controller XK19
It is optional for the cassette type, wall-mounted, and oor ceiling indoor units.
1.1 Outside View of the Wired Controller
Fig.1 Outside View of the Wired Controller
1.2 LCD of the Wired Controller
Fig.2 LCD of the Wired Controller

Wired Controller XK19
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1.3 Introduction to the Symbols on LCD
Table 1
No. Symbols Description
1Swing function.
2Sleep function (3 types: sleep 1,sleep2 and sleep 3).
3Running modes of the indoor unit (Cooling, Dry, Fan and Heating).
4Defrosting function for the outdoor unit.
5Gate-control function (this function is yet unavailable for this unit).
6Lock function.
7High, middle, low or auto fan speed of the indoor unit.
8 SHIELD Shield functions (buttons, temperature, On/Off, Mode or Save is shielded or
Save is shielded by the remote monitor.
9 TURBO Turbo function.
10 MEMORY Memory function (The indoor unit resumes the original setting state after
power failure and then power recovery).
11 MASTER Master wired controller (this function is yet unavailable for this unit).
12 It blinks under on state of the unit without operation of any button.
13 SAVE Energy-saving function.
14 Ambient/preset temperature value.
15 E-HEATER Electric auxiliary heating function.
16 BLOW Blow function.
17 Timing value.
18 QUITE Quiet function (two types: quiet and auto quiet).
19 SET It will be displayed under the debugging mode.
2 Buttons
2.1 Buttons on the Wired Controller
Fig. 3 Buttons on the Wired Controller

Wired Controller XK19
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2.2 Function of the Buttons
Table 2
No. Name Function
1 Enter/cancel ① Function selection and cancellation.
② Press it for 5s to examine the outdoor ambient temperature.
2▲① Running temperature setting of the indoor unit, range:16 ～30℃ .
② Timer setting, range:0.5-24 hr.
③ Switchover between quiet/auto quiet or among sleep1/sleep2/sleep 3.
6▼
3 Fan Setting of the high/middle/low/auto fan speed.
4 Mode Setting of the Cooling/Heating/Fan/Dry mode of the indoor unit.
5 Function Switchover among the functions of Swing/Sleep/Turbo/Save/E-heater/Blow /
Quiet etc.
7 Timer Timer setting.
8 On/Off Turn on/off the indoor unit.
4+2 ▲+Mode
Press them for 5s under off state of the unit to enter/cancel the Memory function
(If memory is set, indoor unit after power failure and then power recovery will
resume the original setting state. If not, the indoor unit is defaulted to be off after
power recovery. Memory off is default before delivery.).
3 +6 Fan+▼
By pressing them at the same time under off state of the unit, will be displayed
on the wired controller for the cooling only unit, while will be displayed on
the wired controller for the cooling and heating unit.
2 +6 ▲+▼
Upon startup of the unit without malfunction or under off state of the unit,press
them at the same time for 5s to enter the lock state, in which case, any other
buttons won’t respond the press. Repress them for 5s to quit this state.
3 Operation Instructions
3.1 On/Off
Press On/Off to turn on the unit and turn it off by another press.
Note: The state shown in Fig.4 indicates the “Off” state of the unit after power on. The state shown in
Fig.5 indicates the “On” state of the unit after power on.
Fig. 4 “Off” State Fig. 5 “On” State
3.2 Mode Setting
Under the “On” state of the unit, press Mode to switch the operation modes as the following sequence:
Cooling-Dry-Fan-Heating.

Wired Controller XK19
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3.3 Temperature Setting
Press ▲or ▼ to increase/decrease the preset temperature. If press either of them continuously, the
temperature will be increased or decreased by 1℃every 0.5s,as shown in Fig.6.
In the Cooling, Dry or Heating mode, the temperature setting range is 16℃～ 30℃ .
In the Fan mode, the setting temperature is xed at 26℃.
In the Auto mode, the setting temperature is unadjustable.
Fig.6
3.4 Fan Setting
Under the “On”/”Off” state of the unit, press Fan and then fan speed of the indoor unit will change
circularly as shown in Fig.7.
Fig.7
3.5 Timer Setting
Under the “On”/”Off” state of the unit, press Timer to set timer off/on.
Timer on setting: press Timer, and then LCD will display “xx.x hour”, with “hour” blinking. In this case,
press ▲or ▼ to adjust the timing value. Then press Enter/cancel to conrm the setting.
Timer off setting: press Timer, if LCD won’t display xx.x hour, and then it means the timer setting is
canceled.
Auto Low Middle High

Wired Controller XK19
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Timer off setting under the “On” state of the unit is shown as Fig.8.
Fig. 8 Timer off Setting under the “On” State of the Unit
Timer range: 0.5-24hr. Every press of ▲or ▼ will make the set time increased or decreased by 0.5hr. If
either of them is pressed continuously, the set time will increase/ decrease by 0.5hr every 0.5s.
3.6 Swing Setting
Swing On: Press Function under on state of the unit to activate the swing function. In this case, will
blink. After that, press Enter/cancel to make a conrmation.
Swing Off: When the Swing function is on, press Function to enter the Swing setting interface, with
blinking. After that, press Enter/cancel to cancel this function.
Swing setting is shown as Fig.9.

Wired Controller XK19
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Fig. 9 Swing Setting
Note:
① .
Sleep, Save, Turbo, Blow or Quiet setting is the same as the Swing setting.
② .
After the setting has been done, it has to press the key “Enter/cancel” to back to the setting status or
quit automatically ve seconds later.
3.7 Sleep Setting
Sleep on: Press Function under on state of the unit till the unit enters the Sleep setting interface. Then
press ▲or ▼ to switch among Sleep 1, Sleep 2 and Sleep 3. After that, press Enter/cancel to conrm the
setting.
Sleep off: When the Sleep function is activated, press Function to enter the Sleep setting interface. After
that, press Enter/cancel to can this function.
Sleep setting is shown as Fig.10.

Wired Controller XK19
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Fig. 10 Sleep Setting
Sleep off is default after power failure and then power recovery, and the sleep functions is unavailable
under the fan mode.
There are three Sleep modes: Sleep 1, Sleep 2 and Sleep 3.
a. Sleep 1
In the Cooling or Dry mode, the temperature will increase by 1℃after the unit runs under Sleep 1 for 1hr
and 1℃after another 1hr.After that, the unit will run at this temperature.
In the Heating mode, the temperature will decrease by 1℃after the unit runs under Sleep 1 for 1hr and
1℃after another 1hr. After that, the unit will run at this temperature.
b. Sleep 2
In the Cooling mode, the temperature may be set between 16 ℃-23 ℃, 24 ℃- 27 ℃or 28 ℃- 29 ℃
or at 30 ℃, and their Sleep curves are shown in Fig.11 (Note: The curve is only for reference, the actual
temperature is subject to the time point.).
For example: The temperature in the Cooling mode is set at 25 ℃. Under the mode of Sleep 2, the
temperature will increase by 1℃every 1hr. After it increases by 2℃in total, it will keep at 27℃. 7 hours
later, it will decrease by1℃, i.e. 26℃.After that, the unit will keep running at 26℃.

Wired Controller XK19
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16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
0 1 2 3 4 5 6 7 8 9 10 11 12
Time/（Hr）
T
e
m
p
/
（
℃
）
Fig.11 Sleep Curve of Sleep 2 in Cooling Mode
In the Heating mode, the temperature may be set at 16℃or between 17℃- 20℃, 21℃-27℃or 28℃-
30℃and their Sleep curves are shown in Fig.12:
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
0 1 2 3 4 5 6 7 8 9 10 11 12
Time/（H r ）
T
e
m
p
/
（
℃
）
Fig.12 Sleep Curve of Sleep 2 in Heating Mode

Wired Controller XK19
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For example, the temperature in the Heating mode is set at 22 ℃.Under the mode of Sleep2, the
temperature will decrease by 1 ℃every 1hr. After it decreases by 2 ℃in total, i.e. 20 ℃,the unit will keep
running at 20℃ .
c. Sleep 3
Sleep curve setting under Sleep 3(DIY mode)
d. Under the mode of Sleep 3, press Timer to enter the Sleep setting. In this case, “1 HOUR” is displayed
where the timing value once is displayed and the corresponding temperature with the last Sleep curve setting
is displayed where the ambient/preset temperature once in displayed.
e. Press ▲or ▼ to change the corresponding temperature setting.
f. Press Timer, time will automatically increase by 1hr, and the corresponding temperature with the last
Sleep curve setting is displayed where the ambient/preset temperature once is displayed.
g. Repeat step 2 and step 3 till 8 HOUR Sleep setting is nished.
h. Press Enter/cancel to conrm the setting.
Sleep curve setting under Sleep 3 is as shown in Fig.13.
Fig. 13 Sleep Curve Setting under Sleep 3
Notes:
① .
During the above setting, if Function is pressed down or there is not any operation within 5s, sleep
curve setting will be canceled.
② .
26℃is the default Sleep curve temperature before delivery. The wired controller will automatically
memorize the Sleep curve after the setting.
3.8 Turbo Setting
Turbo function: The unit at the high fan speed can realize quick cooling or heating so that the room
temperature can quickly approach the setting value.
In the Cooling or Heating mode, press Function till the unit enters the Turbo setting interface and then
press Enter/Cancel to conrm the setting.

Wired Controller XK19
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When the Turbo function is activated, press Function to enter the Turbo setting interface and then press
Enter/Cancel to cancel this function.
Turbo function setting is as shown in Fig.14.
Fig.14 Turbo Setting
Notes:
① .
When the Turbo function is activated, if the difference between the room temperature and set
temperature is at or below 2 ℃(detected in successive 1 min.), the Turbo function will be automatically
deactivated.
② .
Turbo function is unavailable in the Dry and Fan mode. And the Turbo function is off after power
failure and then power recovery. If Quiet function is on, Turbo function will be canceled subsequently.
3.9 Save Setting
Save: Energy saving which will result the air conditioner runs in smaller temperature range is realized by
setting lower limited value in the Cooling or Dry mode and upper limited value in the Heating mode.
Save Setting for Cooling:
Under the “On” state and in the Cooling or Dry mode of the unit, press Function to enter the Save setting
interface and then press ▲or ▼ to adjust the lower limited value in the Cooling mode. After that, press Enter/
Cancel to activate the Save function. The initial lower limited value in the Cooling mode is 26℃.
When the Save function is activated, press Function to enter the Save setting interface and then press
Enter/cancel to cancel this function.
The Save setting for cooling is shown in the Fig.15

Wired Controller XK19
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Fig. 15 Saving Setting for Cooling
Save Setting for Heating:
Under on state or in the Heating mode of the unit, press Function to enter the Save setting interface and
then press ▲or ▼ to adjust upper limited value in the Heating mode. After that, press Enter/Cancel to activate
the Save function for heating. The upper initial limited value in the Heating mode is 20℃.
After the Saving function is activated, press Function to enter the Save setting interface and then press
Enter/Cancel to cancel this function.
Save setting for heating is as shown in Fig. 16

Wired Controller XK19
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Fig.16 Save Setting for Heating
Notes:
① .
If press Function on the Save setting interface or if there is not any operation for 5s after last button
press, the Save setting will be canceled automatically by the system, with memorizing the present setting data.
② .
When power is on after the power failure, the Save function will be memorized.
3.10 E-heater Setting
E-heater (auxiliary electric heating function): In the Heating mode, E-heater is allowed to be turned on for
improvement of efciency.
Once the wired controller or the remote controller enters the Heating mode, this function will be turned on
automatically.
Press Function in the Heating mode to enter the E-heater setting interface and then press Enter/cancel to
cancel this function.
Press Function to enter the E-heater setting interface, if the E-heater function is not activated, and then
press Enter/Cancel to turn it on.
The setting of this function is shown as Fig.17 below:

Wired Controller XK19
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Fig.17 E-heater Setting
3.11 Blow Setting
Blow function: After the unit is turned off, the water in evaporator of indoor unit will be automatically
evaporated to avoid mildew.
In the Cooling or Dry mode, press Function till the unit enters the Blow setting interface and then press
Enter/Cancel to active this function.
When the Blow function is activated, press Function to the Blow setting interface and then press Enter/
Cancel to cancel this function.
Blow function setting is as shown in Fig.18

Wired Controller XK19
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Fig.18 Blow Setting
Notes:
① .
When the Blow function is activated, if turning off the unit by pressing On/Off or by the remote
controller, the indoor fan will run at the low fan speed for 10 min, with “BLOW” displayed on the LCD.
While, if the Blow function is deactivated, the indoor fan will be turned off directly.
② .
Blow function is unavailable in the Fan or Heating mode.
3.12 Quiet Setting
Quiet function consists of two kinds: quiet and auto quiet.
Press Function till the unit enters the Quite setting interface, with “Quiet” or “Auto” blinking. In this case,
press ▲or ▼ to switch between Quiet and Auto and then press Enter/cancel to make a conrmation.
When the Quiet function is activated, press Function till the unit enters the Quite setting interface, with
“Quite” or “Auto” blinking. Then press Enter/cancel to cancel this function.
Quiet function setting is as shown in Fig.3.16:

Wired Controller XK19
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Fig.19 Quiet Setting
Notes:
① .
When the Quite function is activated, the fan speed is low and un-adjustable.
② .
When the Auto Quite function is activated, the unit will run according to the difference between the
room temperature and the setting temperature. In this case, the fan speed is adjustable.
Difference between the room temperature and the setting temperature: the fan speed will keep its current
state if the temperature difference ≥4 ℃; the fan speed will reduce one grade if 2 ℃ ≤ the temperature
difference ≤3℃; the fan speed will be at min. grade if the temperature difference ≤1℃.
③ .
When the Auto Quiet function is on, the fan speed can not be raised but reduced. If the high fan speed
is manually adjusted, the function will quit automatically.
④ .
There is not Auto Quiet function in the Fan or Dry mode. Quiet off is default after power failure and
then power recovery.
3.13 Other Functions
a. Lock
Upon startup of the unit without malfunction or under the “Off” state of the unit, press ▲ and ▼ at the
same time for 5s till the wired controller enters the Lock function. In this case, LCD displays . After that,
repress these two buttons at the same time for 5s to quit this function.
Under the Lock state, any other button press won’t get any response.
b. Memory
Memory switchover: Under the “Off” state of the unit, press Mode and ▲ at the same time for 5s to
switch memory states between memory on and memory off. When this function is activated, Memory will be
displayed. If this function is not set, the unit will be under the “Off” state after power failure and then power
recovery.

Wired Controller XK19
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Memory recovery: If this function has been set for the wired controller, the wired controller after power
failure will resume its original running state upon power recovery. Memory contents: On/Off, Mode, set
temperature, set fan speed, Save function and Lock function.
c. Enquiry of the Outdoor Ambient Temperature
Under the “On” or “Off” state of the unit, press Enter/Cancel for 5s, and the outdoor ambient temperature
will be displayed after a sound of click. This enquiry state will quit by pressing Function or On/Off or during
the temperature adjustment. If there is not any operation for 10s, it will also quit automatically.
4 Errors
If there is an error occurring during the operation of the system, the error code will be displayed on the
LCD, as show in Fig.20. If multi errors occur at the same time, their codes will be displayed circularly.
Note: In event of any error, please turn off the unit and contact the professionally skilled personnel.
Fig.20

Wired Controller XK19
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Table 3 Meaning of Each Error
Error Error Code
High pressure protection E1
Low pressure protection E3
Discharge protection E4
Over-current protection P5
Communication error E6
Indoor water overow protection E9
Mode conict E7
Anti-freezing protection E2
Defrosting or oil returning for heating H1
Indoor ambient temperature sensor open/short circuit F1
Evaporator temperature sensor open/short circuit F2
Indoor unit (liquid valve) refrigerant pipe inlet temperature sensor error b5
Indoor unit (gas valve) refrigerant pipe outlet temperature sensor error b7
Condenser coil inlet temperature sensor open/short circuit A5
Condenser coil midway temperature sensor error F4
Condenser coil outlet temperature senor open/short circuit A7
Discharge air temperature sensor error F5
Outdoor ambient temperature sensor error F3
Module temperature sensor error oE
Outdoor unit overall error oE