Sinclair MC-C24AI User manual

USER'S MANUAL
MC-C24AI
MULTI COMBI SERIES
CASSETTE



User Notice
◆When operating, the entire capacity of the cooperating indoor unit should be not larger than
150% of outdoor unit. Otherwise, it will cause the shortage of cooling (heating) capacity.
◆A Breaker(or fuse) need to be installed in every indoor unit, and the capacity should
in according with indoor unit’s electrical parameter; all the indoor units are required to be
centralized controlled by a total Switch, this Switch can cut off the electric power supply in case of
emergency. The Breaker(or fuse) on each indoor units have the function of short circuit prevention
and abnormal overload avoiding, it should be connected in normal situation. The total switch
controlling the power supply of all the indoor units. Before clearing and maintenance job being
carried out to the indoor units, it is very important to turn off the total power supply switch.
◆In order to turn on the units successfully, the main power switch should be opened 8 hours
before the operation.
◆After receiving the turn off signal, every indoor unit will continue to work for 20-70sec to
make use of the rest cool air or the rest heat air in the heat exchanger, while preparing for the next
operation. And this is normal.
◆When the selected operating mode of the indoor unit are clash with the operating mode of
the outdoor unit, the malfunction light will blink after 5s on the indoor unit or remote controller
showing that the operation clash, then the indoor unit will stop. At this time, change the operation
mode of the indoor unit to the one that would not clash with the outdoor operating mode to make
the operation normal. The cooling mode is not clash with the dry mode, while the fan mode is not
clash with any mode.
◆The appliance shall not be installed in the laundry
◆An all-pole disconnection switch having a contact separation of at least 3mm in all poles
should be connected in xed wiring
◆Information regarding transport/storage temperature (-25-55°C) is missing
◆Main switch provided by end user: main switch handle should be black or gray, it can be
locked in “OFF” position with padlock
◆The main disconnection device should be explained in user manual and the height should
be recommended at 0.6-1.7m. over current protection is required(EN 60947-3, EN 60947-2)
◆The cooling range of the unit is the outdoor environment temp.-5~48°C DB, the heating
range of the unit( only for the heat pump type unit) is the outdoor environment temp. -15~27°C
WB.
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 your selecting of Sinclair air conditioner, please read this usage and
install instruction carefully and keep it well in order to use this unit correctly.

Wireless Remote Controller YT1F
18
ⅡWireless Remote Controller YT1F
Notes:
① .
Be sure that there are no obstructions between the receiver and the remote controller;
② .
Do not drop or throw the remote controller;
③ .
Do not let any liquid into the remote controller and expose the remote controller to direct sunlight or
any place where is very hot.
④ .
This is a general use remote controller. If press some button which is not available for the
corresponding function, the unit will keep the original running status.
1 Function of Press Buttons:
Fig.21
1) ON/OFF ( )
Press this button to turn on/off the unit. After that, the sleep function will be canceled but the preset time
is still remained.
2) MODE
Auto, Cool, Dry Fan, Heat modes can be selected circularly by pressing this button. Auto mode is the
default after power on. Under Auto mode, the temperature will not be displayed. Under Heat mode, the initial
value is 28℃(82 ℉); Under other modes, the initial value is 25℃(77 ℉).
3) SLEEP
Sleep On and Sleep Off can be selected by pressing this button. After powered on, the default is Sleep Off.
After the unit is turned off, the Sleep function is canceled. When the sleep function is set already, the symbol
will be displayed. And at this time, the time of timer can be adjusted. Under Fan and Auto modes, this
unction is not available.

Wireless Remote Controller YT1F
19
4) FAN
Auto, Low, Middle, or High fan speed can circularly selected by pressing this button. After powered on,
the default is Auto speed. Under Dehumidifying mode, only Low fan speed is available.
5) CLOCK
The clock can be set up by pressing this button, with the symbol displayed and blinking. In such a
case, pressing ＋or －within 5 seconds can adjust the value. If the button is pressed down for more than 2
seconds, the value on ten’s place will increase by 1 in every 0.5 seconds. After that, repressing this button
and then symbol stops blinking, which indicates the setting is made successfully. After powered on, the
default value is 12:00 with displayed. Once the symbol is displayed, the current time is the Clock value;
otherwise it is the Timer value.
6) LIGHT
Light On and Light Off can be set by pressing this button when the unit is at On or Off status. After
powered on, the default is Light On.
7) TURBO
In Cool or Heat mode, pressing this button can activate or deactivate this function. When this function
is on, its symbol will be displayed. Any change of either mode or fan speed will make this function canceled
automatically.
8) BLOW
BlOW On and BLOW Off can be set by pressing this button. In Cool and Dehumidifying modes, press
this button to activate this function and then “BLOW” will be displayed. After that, it can be canceled by
repressing this button. After powered on, the default is Blow Off. If the ON/OFF button is operated or the unit
is switched to the Cool or Dehumidifying mode, it will keep its original status. When the unit is turned off,
Only Blow Off is available. Under Auto, Fan or Heat mode, this function is unavailable.
9) －
The preset temperature can be decreased by pressing this button. If the button is pressed down for more
than 2 seconds, the temperature will be decreased quickly until it is released, with ℃ (℉) displayed al the
time. Under Auto mode, the temperature adjustment is unavailable.
10) ＋
The preset temperature can be increased by pressing this button. If the button is pressed down for more
than 2 seconds, the temperature will be increased quickly until it is released, with ℃(℉) displayed all the
time. Under Auto mode, the temperature adjustment is unavailable. The setting range is 16-30 ℃or 61-86 ℉
11) TEMP
It can be decided by pressing this button which temperature will be displayed, indoor set temperature, or
indoor ambient temperature. When the indoor unit is powered on, the indoor set temperature will be displayed,
while if the status is changed to , the indoor ambient temperature will be displayed. However, the indoor
set temperature will be displayed again when the controller receives other remote controls signals. Without
setting this function, the default is the indoor set temperature.
12) SWING UP/DOWN ( )
The swing angle which circularly changes as below can be selected by pressing this button:

Wireless Remote Controller YT1F
20
This kind of remoter controller is universal. And the three swing statuses of are the same
as that of .
If the swing function is deactivated when the air guide louver is swing up and down, it will stop at the
current position.
indicates that the air guide louver swings up and down among all ve positions.
13) AIR ( )
AIR ON or Air OFF can be selected by pressing this button.
14) TIMER ON
“ON” will be displayed and blink for 5 seconds by pressing this button, and soon adjust the time by
pressing ＋or －within 5 seconds. Each press will make the time increased or decreased by 1 minute. If
the button is pressed down for more than 2 seconds, the time will be changed quickly in such a way: rstly
the value on the one’s place is changed and then is the value on the ten’s place. Once Timer ON has been set
already, it can be canceled by repressing it. Before the setting, please adjust the CLOCK to the current actual
time.
15) TIMER OFF
TIME OFF can be activated by pressing this button, with “OFF” blinking. The method of setting is the
same as that for TIMER ON.
16) HEALTH ( )
This function can be activated or deactivated by pressing this button. After the unit is turned on, the
default is HEALTH ON.
17) I FEEL
This function can be activated by pressing this button and canceled by another press. When this function
is on, the I FEEL information will be sent out in 200ms after each operation on the controller and the remote
controller will send the temperature information to the main controller every 10 minutes.
2 Guide for General Operation
a. After powered on, press ON/OFF and then the unit will start to run. (Note: when powered off, the
guide louver of the main unit will close automatically).
b. Press MODE to select the desired running mode.
c. Press ＋or －to set the desired temperature (it is unnecessary to set the temperature under the AUTO
mode.)
d. Press FAN to set the fan speed, AUTO, LOW, MID, or HIGH.
e. Press to select the swing angle.
3 Guide for Optional Operation
a. About BLOW
This function indicates that moisture in the evaporator of the indoor unit will be dried after the unit is
stopped to avoid mould.
① .
BLOW ON: When press the ON/OFF button to turn off the unit, the indoor fan will continue running
for about another 10 minutes at the low speed. In this case, the indoor fan can be stopped directly by pressing
the button BLOW.

Wireless Remote Controller YT1F
21
② .
BLOW OFF: When press the ON/OFF button to turn off the unit, the whole unit will be stopped
completely.
b. About AFTERHEAT BLOW
Under the Heat mode or Auto Heat mode, if the unit is turned off, the compressor and outdoor fan will
stop running immediately and the upper and lower guide board will rotate to the horizontal position, while the
indoor fan will still run at the low fan speed. Then, 10 seconds later, the unit will stop completely.
c. About AUTO RUN
When AUTO RUN is selected, the setting temperature will not be displayed on the LCD and the unit will
choose the suitable running mode automatically in accordance with the room temperature.
d. About TURBO
If this function is activated, the unit will run at super-high fan speed to cool or heat quickly so that the
ambient temperature will approaches the preset temperature as soon as possible.

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
2
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
3
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
4
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
5
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
6
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
7
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
8
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
9
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
10
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
11
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
12
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
13
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