Sinclair TOWER Series User manual

INSTALLATION MANUAL
AST-24BI
INSTALLATION MANUAL

Content
Precautions .......................................................................................................................... 2
Operation Notices
Parts Name ..........................................................................................................................
7
Malfunction .......................................................................................................................... 20
Malfunction
Installation of indoor unit .................................................................................................... 30
Installation of outdoor unit .................................................................................................. 34
Vacuum pumping .............................................................................................................. 37
Leakage detection ............................................................................................................. 37
Check after installation ....................................................................................................... 38
Test operation .................................................................................................................... 38
Installation
Clean and maintenance .....................................................................................................
Maintenance
18
Installation instructions of anti-collapse chain ....................................................................
Configuration of connection pipe ........................................................................................
Pipe expanding method ......................................................................................................
Attachment
42
40
39
Installation dimension diagram ..........................................................................................
Tools for installation ........................................................................................................... 28
Selection of installation location .........................................................................................
Requirements for electric connection .................................................................................
Installation Notice
29
28
26
Function introduction for combination buttons ....................................................................
Operation Guide
Operation guide .................................................................................................................. 17
Replacement of batteries in remote controller ....................................................................
Introduction for buttons on remote controller .....................................................................
Introduction for icons on display screen .............................................................................
Button’s introduction ........................................................................................................... ..9
Buttons on remote controller ..............................................................................................
Button’s Name and Function ................................................................................................
Introduction for icons on display screen of air conditioner ....................................................
17
16
12
11
11
8
8
Safety precautions for installing and relocating the unit .....................................................
27
The Refrigerant
........................................................................................................
.........
1
Safety operation of flammable refrigerant
...................................................................
24
1) Frequency band(s) in which the radio equipment operates：2400MHz-2483.5MHz
2) Maximum radio-frequency power transmitted in the frequency band(s) in which the radio equipment
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 responsible for their safety.
Children should be supervised to ensure that they do not play with the appliance.
If it needs to install, move or maintain the air conditioner, please contact dealer or local service
center to conduct it at first. Air conditioner must be installed, moved or maintained by appointed
unit. Otherwise, it may cause serious damage or personal injury or death.
operates：20dBm
This marking indicates that this product should not be disposed with other household wastes throughout the EU.
To prevent possible harm to the environment or human health from uncontrolled waste disposal, recycle it
responsibly to promote the sustainable reuse of material resources. To return your used device, please use the
return and collection systems or contact the retailer where the product was purchased. They can take this
product for environmental safe recycling.
R32: 675

Explanation of Symbols
Exception Clauses
Indicates a hazardous situation that, if not avoided, will
Manufacturer will bear no responsibilities when personal injury or
1.Damage the product due to improper use or misuse of the product;
2.Alter, change, maintain or use the product with other equipment without abiding
by the instruction manual of manufacturer;
product;
4.After verification, defects are due to improper operation during transportation of
regulations;
5.Operate, repair, maintain the unit without abiding by instruction manual or related
performance of parts and components that produced by other manufacturers;
6.After verification, the problem or dispute is caused by the quality specification or
majeure.
7.The damage is caused by natural calamities, bad using environment or force
3.After verification, the defect of product is directly caused by corrosive gas;
property loss is caused by the following reasons.
result in death or serious injury.
Indicates a hazardous situation that, if not avoided, could
result in death or serious injury.
Indicates a hazardous situation that, if not avoided, may
result in minor or moderate injury.
Indicates important but not hazard-related information,
used to indicate risk of property damage.
Indicates a hazard that would be assigned a signal word
WARNING or CAUTION.
DANGER
WARNING
CAUTION
N OTIC E

1
The Refrigerant
WARNING：
To realize the function of the air conditioner unit, a special refrigerant circulates in
the system. The used refrigerant is the fluoride R32, which is specially cleaned.
The refrigerant is flammable and inodorous. Furthermore, it can leads to explosion
under certain conditions. But the flammability of the refrigerant is very low. It can
be ignited only by fire.
Compared to common refrigerants, R32 is a nonpolluting refrigerant with no harm
to the ozonosphere. The influence upon the greenhouse effect is also lower. R32
has got very good thermodynamic features which lead to a really high energy
efficiency. The units therefore need a less filling.
Do not use means to accelerate the defrosting process or to clean, other than those
recommended by the manufacture. Should repair be necessary, contact your nea-
rest authorized Service Centre. Any repairs carried out by unqualified personnel
may be dangerous. The appliance shall be stored in a room without continuously
operating ignition sources. (for example: open flames, an operating gas appliance
or an operating electric heater.) Do not pierce or burn.
Appliance shall be installed, operated and stored in a room with a floor area larger
than Xm .
Appliance filled with flammable gas R32. For repairs, strictly follow manufacturer’s
instructions only. Be aware that refrigerants may not contain an odour. Read specialist’s
manual.
2
Appliance filled with flammable gas R32.
Before use the appliance, read the owner’s manual first.
Before repair the appliance, read the service manual first.
Before install the appliance, read the installation manual first.
(Please refer to table "a" in section of " Safety Operation of Inflammable
Refrigerant" for Space X.)

Precautions
WARNING
Do not connect air conditioner to multi-purpose socket.
This appliance can be used by children aged from 8
Operation and Maintenance
If the supply cord is damaged, it must be replaced by
the manufacturer, its service agent or similarly qualified
persons in order to avoid a hazard.
Do not spray water on indoor unit. It may cause electric
shock or malfunction.
Otherwise, it may cause fire hazard.
Children shall not play with the appliance.
Cleaning and user maintenance shall not be made by
children without supervision.
years and above and persons with reduced physical,
sensory or mental capabilities or lack of experience
and knowledge if they have been given supervision or
instruction concerning use of the appliance in a safe
way and understand the hazards involved.
Do not wash the air conditioner with water to avoid
electric shock.
After removing the filter, do not touch fins to avoid injury.
Do not use fire or hair dryer to dry the filter to avoid
deformation or fire hazard.
Do disconnect power supply when cleaning air
conditioner. Otherwise, it may cause electric shock.
.
2

Do not block air outlet or air inlet. It may cause
malfunction.
remote controller may be broken.
●Power cord is overheating or damaged.
●There’s abnormal sound during operation.
●Circuit break trips off frequently.
●Air conditioner gives off burning smell.
●Indoor unit is leaking.
contact the dealer or qualified professionals for service.
When turning on or turning off the unit by emergency
operation switch, please press this switch with an insulating
object other than metal.
outlet. It may cause personal injury or damage.
Precautions
WARNING
conditioner and disconnect power immediately, and then
If the air conditioner operates under abnormal conditions,
it may cause malfunction, electric shock or fire hazard.
Do not spill water on the remote controller, otherwise the
electric shock or damage. Please contact dealer when
you need to repair air conditioner.
Do not repair air conditioner by yourself. It may cause
objects. It may cause damage or personal injury.
Do not step on top panel of outdoor unit, or put heavy
When below phenomenon occurs, please turn off air
Do not extend fingers or objects into air inlet or air
Maintenance must be performed by qualified
professionals. Otherwise, it may cause personal injury
or damage.
3

Do install the circuit break. If not, it may cause malfunction.
of at least 3mm in all poles should be connected in fixed
wiring.
magnet buckle and heating buckle function, it can protect
the circuit-short and overload.
power supply circuit and circuit break.
Precautions
WARNING
note the following table. Air switch should be included
An all-pole disconnection switch having a contact separation
Must follow the electric safety regulations when installing
the unit.
grounding wire of power socket.
Properly connect the live wire, neutral wire and
any work related to electricity and safety.
Be sure to cut off the power supply before proceeding
Including an circuit break with suitable capacity, please
Air Conditioner should be properly grounded. Incorrect
Don't use unqualified power cord.
grounding may cause electric shock.
According to the local safety regulations, use qualified
Installation must be performed by qualified professionals.
Otherwise, it may cause personal injury or damage.
Attachment
4
Make sure the power supply matches with the requirement
of air conditioner. Unstable power supply or incorrect wiring
may result in electric shock, fire hazard or malfunction.
Please install proper power supply cables before using the
air conditioner.

Installation must be performed in accordance with the
persons in order to avoid a hazard.
must be properly grounding with specialized grounding
device by a professional. Please make sure it is always
grounded effectively, otherwise it may cause electric shock.
The appliance must be positioned so that the plug is
accessible.
If the length of power connection wire is insufficient, please
contact the supplier for a new one. Avoid extending the
wire by yourself.
All wires of indoor unit and outdoor unit should be
connected by a professional.
national wiring regulations.
requirement of NEC and CEC by authorized personnel
only.
Precautions
WARNING
wire, which can't be used for other purposes.
The grounding resistance should comply with national
electric safety regulations.
The air conditioner is the first class electric appliance. It
keep the interconnection cable away from the copper
tube.
The temperature of refrigerant circuit will be high, please
the manufacturer, its service agent or similarly qualified
If the supply cord is damaged, it must be replaced by
The yellow-green wire in air conditioner is grounding
The appliance shall be installed in accordance with
Do not put through the power before finishing installation.
5

The indoor unit should be installed close to the wall.
Instructions for installation and use of this product are
provided by the manufacturer.
Precautions
WARNING
place, only the qualified person can perform the work.
Otherwise, it may cause personal injury or damage.
If you need to relocate the air conditioner to another
must be installed in the line.
For the air conditioner without plug, an circuit break
far away from animals or plants.If it is unavoidable,
please add the fence for safety purpose.
Select a location which is out of reach for children and
reachable after finishing installation.
For the air conditioner with plug, the plug should be
Working temperature range
NOTICE:
Indoor side DB/WB(℃) Outdoor side DB/WB(℃)
Maximum cooling 32/23 43/26
Maximum heating 27/- 24/18
●The operating temperature range (outdoor temperature) for cooling only unit is
-15℃~ 43℃; for heat pump unit is -15℃~ 43℃.
6

MODE
FAN
FUNC.
ON/OFF
display and button
(Display content or position may be different from above
graphics, please refer to actual products)
Parts Name
Indoor Unit
remote controller
air outlet
air inlet
display and button
panel
NOTICE:
Actual product may be different from above graphics, please refer to actual
products.
Outdoor Unit
air inlet
air outlet
handle
MODE
FAN
FUNC.
ON/OFF
7

Timer
display
Ambient temperature
or set temperature
display or others
Operation
Cooling display
Dry display
Fan display
E-Heater display
Defrosting display
Heating display
Fan speed display
display
1
6
2
3
4
5
Button’s Name and Function
Introduction for icons on display screen
of air conditioner
4FUNCTION button
2MODE button
MODE
3FAN button
FAN
FUNC.
1ON/OFF button
ON/OFF5▼/▲ button
6button
/
8

Button’s introduction
ON/OFF button
MODE button
1
2
FAN button
3
●
This series unit adopts touch buttons. You only need to touch the buttons slightly.
Press this button to turn on or turn off the unit.(Note: Under X-FAN mode,
press this button to turn on the unit directly.)
● Every time press this button, the mode will switchover in cycle among.
(Note: Cooling only unit won’t accept heating operation signal. For cooling only unit,
pressing MODE button under FAN mode will skip heating mode and enter cooling
mode.)
COOLING DRY
HEATING FAN
● Press this button and then fan speed can be selected and displayed in the
sequence as below:
(Note:Only low fan speed is available for dry mode. Fan speed can't be adjusted
under dry mode. Turbo cannot be set in FAN mode.)
(low) (medium) (high)
(turbo)
Note:
FUNCTION button
4
●
●
Under on status, press Function button to switch between timer and auxiliary
heating function setting (auxiliary heating can be set only in heating mode). When
timer or auxiliary heating icon is blinking, it means this function can be set. Press
"▲" or "▼" button to set function. If there’s no operation change within 5s after
setting is finished, the function setting will be confirmed. Or press Function button
again to exit or confirm the function.When the function is selected through Function
button, if the unit is not turned off and no remote control signal is received within
2min, pressing Function button again to circulate from the previous set function.
After 2min or the unit is turned off or remote control signal is received, pressing
Function button again to circulate from timer icon. (Note: Only when the unit is
under heating mode and with auxiliary heating function, auxiliary heating function
can be turned on or off through Function button.)
Under off status, if the unit is in X-FAN status, press Function button to turn off the
unit directly; if the unit is not in X-FAN status, press Function button to set timer ON.
9

Button’s introduction
Operation display
Timer display
●It indicates the air conditioner is
put through the power. Under on
Heating display
●When this indicator is on, it
indicates the timer function
is turned on.
status, this indicator is on; under
off status, this indicator is off.
●When this indicator is on, it
indicates the heating mode is
turned on.
●When this indicator is on, it
indicates the defrosting function
is turned on.
●
●
●
When this indicator is on, it indicates
the dry mode is turned on.
When this indicator is on, it indicates
the cooling mode is turned on.
When this indicator is on, it indicates
the E-heater function is turned on.
●When this indicator is on, it indicates
the fan mode is turned on.
●Displays the fan speed. The fan speed
is displayed as below:
Dry display
E-Heater display
Cooling display
Fan display
Icon function introduction
button
6
●
Left and right swing: this button controls the left and right swing motor, single
press it to switchover between ON and OFF.
● Up and down swing: this button controls the up and down swing motor, single
press it to switchover between ON and OFF.
▼/▲ button
5
● After each pressing of "▲" or "▼" button, set temperature will increase or decrease
auto mode. Timer setting can be set in 1h increment among 0~24h. When
it is adjusted to auxiliary heating function setting through Function button,
press this button to turn on or turn off auxiliary heating. (Note: auxiliary heating
is valid only for the model with this function.)
1℃. Temperature adjustment range is 16℃~30℃. This button is invalid under
● Hold "▲" and "▼" buttons for 3s and the air conditioner will display "LC", which
indicates buttons are locked. Any button under on status or ON/OFF button and
function buttons under off status are all invalid. Hold these two button for 3s
again to release the lock.
Fan speed display
Defrosting display
(low) → (medium) →
(high) → (turbo)
/
10

Buttons on remote controller
Introduction for icons on display screen
7
3
6
9
10
14
15
13
12
8
11
5
4
2
1
X-FAN function
Turbo fan speed
Quiet mode
Set fan speed
(No fan speed. It’s displayed
only after turning it on.)
{
Send signal
Switch temperature displaying type on
the unit’s display
Set time
TIMER ON/TIMER OFF
Child lock
Up & down swing
Left & right swing
battery power
Heat mode
Fan mode
Dry mode
Cool mode
Auto mode
Operation mode
I feel function
Sleep mode
WiFi This is a general remote controller.Some
models have this function while some
do not. Please refer to the actual models.
{
1ON/OFF button
2SAVE button
3FAN button
4MODE button
6
button
7
button
9
COOL button
14 LIGHT button
15 TIMER button
12
SLEEP button
13 QUIET button
10
HEAT button
8
X-FAN/E-HEATER button
11 WiFi button
5▲/ button
▲
11

12
Introduction for buttons on remote controller
Note:
●After putting through the power, the air conditioner will give out a sound.
Operation indicator " " is ON. After that, you can operate the air conditioner by
using remote controller.
● Under on status, pressing the button on the remote controller, the signal icon " "
on the display of remote controller will blink once and the air conditioner will give
out a “di” sound, which means the signal has been sent to the air conditioner.
ON/OFF button
1
SAVE button
2
Press this button can turn on or turn off the air conditioner. After turning on the air
conditioner, indoor unit will give out a sound.
FAN button
3
Pressing this button can set fan speed circularly as: auto (AUTO), low( ), medium
( ), high( ), turbo( ).
Auto
●It’s Low fan speed under Dry mode.
●Turbo cannot be set in FAN mode.
●Under AUTO speed, air conditioner will select proper fan speed automatically
according to ex-factory setting.
Note:
●This is a general use remote controller, it could be used for the air conditioners
with multifunction; For some function, which the model doesn't have, if press
the corresponding button on the remote controller that the unit will keep the
original running status.
Under cooling mode, press this button to start up or turn off energy-saving function.
When energy-saving function is started up, "SE" will be shown on remote controller,
and air conditioner will adjust the set temperature automatically according to
ex-factory setting to reach to the best energy-saving effect. Press this button again
to exit energy-saving function.

Introduction for buttons on remote controller
▲
▲/ button
5
● Press "▲" or " " button once increase or decrease set temperature 1℃(°F).
Holding "▲" or " " button, 2s later, set temperature on remote controller will
change quickly. On releasing button after setting is finished, temperature indica-
tor on indoor unit will change accordingly. (Temperature can’t be adjusted under
▲
▲
13
▲
● When setting TIMER ON, TIMER OFF, press "▲" or " " button to adjust time.
(Refer to TIMER button for details)
auto mode)
● When selecting auto mode, air conditioner will operate automatically according
to the sensed temperature. Set temperature can’t be adjusted and will not be
displayed as well. Press "FAN" button can adjust fan speed. Press " " / " "
button can adjust fan blowing angle.
● After selecting cool mode, air conditioner will operate under cool mode. Cool
indicator " " on indoor unit is ON(This indicator is not available for some models).
Press "▲" or " " button to adjust set temperature. Press "FAN" button to adjust
fan speed. Press " " / " " button to adjust fan blowing angle.
● When selecting dry mode, the air conditioner operates at low speed under dry
mode. Dry indicator " " on indoor unit is ON(This indicator is not available for
some models). Under dry mode, fan speed can’tbe adjusted. Press " " / " "
button to adjust fan blowing angle.
● When selecting fan mode, the air conditioner will only blow fan, no cooling and
no heating. Fan indicator " " on indoor unit is ON. Press "FAN" button to adjust
fan speed. Press" " / " " button to adjust fan blowing angle.
● When selecting heating mode, the air conditioner operates under heat mode.
Heat indicator " " on indoor unit is ON(This indicator is not available for some
models). Press "▲" or " " button to adjust set temperature. Press "FAN" button
to adjust fan speed. Press " " / " " button to adjust fan blowing angle. (Cooling
only unit won’t receive heating mode signal. If setting heat mode with remote
controller, press ON/OFF button can’t start up the unit).
MODE button
▲
▲
4
Press this button to select your required operation mode.
AUTO COOL FANDRY HEAT
Note:
● For preventing cold air, after starting up heating mode, indoor unit will delay 1~5
minutes to blow air (actual delay time is depend on indoor ambient temperature).
● Set temperature range from remote controller: 20~28℃(68-82.4°F);
Fan speed: auto, low speed, medium speed, high speed, turbo speed.

14
● Under simple swing mode, press this button can turn on (" " icon is displayed) or
turn off (" " icon is not displayed) the left&right swing function.
● When the unit is turned off by remote controller, press "▲" button and " "
● This remote controller is the general type remote controller. When remote controller
receives the signal of " " , swing status is same as " " ; when remote controller
receives " " , swing status is same as left&right swing OFF.
button can switch between single swing mode and fixed-angle swing mode.
" " on the remote controller will flash twice.
Introduction for buttons on remote controller
9
Under fixed-angle swing mode, press this button and then left&right swing status will
circulate as shown in the right figure:
● Under simple swing mode, press this button can turn on (" " icon is displayed)
or turn off (" " icon is not displayed) the up&down swing function.
● When the unit is turned off by remote controller, press "▲" button and " "
button can switch between single swing mode and fixed-angle swing mode.
" " on the remote controller will flash twice.
Under fixed-angle swing mode, press this button and the up&down swing status will
circulate as shown in the right figure:
button
8 button
no display
no display
Cool button
6
● Press this button, unit will operate in cool mode.
● Press this button, unit will operate in heat mode.
Heat button
7

15
Introduction for buttons on remote controller
10 SLEEP button
Under COOL, or HEAT mode, press this button to start up sleep function.
" " icon is displayed on remote controller. Press this button again to cancel sleep
function and " " icon will disappear.After powered on, Sleep Off is defaulted. After
the unit is turned off, the Sleep function is canceled.
In this mode, set temperature will be adjusted with the change of time. Under Fan、
DRY and Auto modes, this function is not available.
WiFi button
11
●This function is only available for some models.
Press " WiFi " button to turn on or turn off WiFi function. When WiFi function is
turned on, the " WiFi " icon will be displayed on remote controller; Under status
of remote controller off, press "MODE" and " WiFi " buttons simultaneously for 1s,
WiFi module will restore to factory default setting.
LIGHT button
14
Press this button to turn off display light on indoor unit. Press this button again
to turn on display light.
12
Pressing this button in COOL or DRY mode, the icon " " is displayed and the
Only under cooling mode and dry mode, press this button can turn on (characters
of “X-FAN” are displayed) or turn off (characters of “X-FAN” are not displayed)
X-FAN function.
indoor fan will continue operation for a few minutes in order to dry the indoor unit
even though you have turned off the unit. After energization, X-FAN OFF is
defaulted.X-FAN is not available in AUTO, FAN or HEAT mode.
This function indicates that moisture on evaporator of indoor unit will be blowed
after the unit is stopped to avoid mould.
●Having set X-FAN function on: After turning off the unit by pressing ON/OFF
button indoor fan will continue running for about a few minutes. at low speed.
In this period, press X-FAN button to stop indoor fan directly.
●
●
Under heating mode, press this button and the E-HEATER status will changed
circularly as below:
●
Having set X-FAN function off: After turning off the unit by pressing ON/OFF
●This function is not available for this unit.
button, the complete unit will be off directly.
Press this button can turn on or turn off QUIET function.
X-FAN/E-HEATER button
13 QUIET button
Auto E-HEATER (no display)
E-HEATER OFF
( is displayed)
E-HEATER ON
( is displayed)

Introduction for buttons on remote controller
Note:
● Time setting range: 0.5-24 hours.
● Time interval between two operations can’t exceed 5s. Otherwise, remote
controller will exit the setting status automatically.
hour. When holding " " or " " button, 2s later, the time will change quickly until to
Cancel TIMER OFF: Press "TIMER" button again under TIMER OFF status.
● At OFF status, press this button once can set TIMER ON. Please refer to TIMER
off for detailed operation.
Cancel TIMER ON: Press "TIMER" button again under TIMER ON status.
TIMER button
15
●
At ON status, press this button once can set TIMER OFF. The character of HOUR
TIMER
ON. After each pressing of " " or " " button, time will increase or decrease half an
▲
▲
▲
▲
▲
▲
Function introduction for combination buttons
Child lock function
Press "▲" and " " simultaneously to turn on or turn off child lock function. When
child lock function is on, " " icon is displayed on remote controller. If you operate
the remote controller, the " " icon will blink three times without sending signal to
the unit.
▲
Temperature display switchover function
Under OFF status, press " " and "MODE" buttons simultaneously to switch temp-
erature display between ℃ and ℉.
▲
16