Boreal brisa BRS36HPJ1IA User manual

Split Air Conditioner
Thank you for choosing our product.
For proper operation, please read and keep this manual carefully.
If you have lost the Owner’s Manual, please contact the local agent or visit
www.borealintl.com or sent email to [email protected] for electronic version.
BRS30HPJ1IA
BRS30HPJ1OA
BRS36HPJ1IA
BRS36HPJ1OA

BRS30HPJ1IA
BRS30HPJ1OA
BRS36HPJ1IA
BRS36HPJ1OA

Content
Operation Notices
Precautions............................................................................................................1
Parts name ............................................................................................................6
Screen Operation Guide
Buttons on remote controller .................................................................................8
Introduction for icons on display screen ................................................................8
Introduction for buttons on remote controller.........................................................9
Function introduction for combination buttons.....................................................15
Operation guide................................................................................................... 16
Replacement of batteries in remote controller.....................................................16
Emergency operation .......................................................................................... 17
Maintenance
Clean and maintenance....................................................................................... 17
Malfunction
Malfunction analysis ............................................................................................ 20
Installation Notice
Installation dimension diagram............................................................................24
Tools for installation.............................................................................................26
Selection of installation location ..........................................................................26
Requirements for electric connection ..................................................................27
Installation
Installation of indoor unit......................................................................................28
Installation of outdoor unit ...................................................................................33
Vacuum pumping................................................................................................. 36
Leakage detection ...............................................................................................36
Check after installation ........................................................................................ 37
Test and operation
Test operation......................................................................................................37
Attachment .........................................................................38
Pipe expanding method.......................................................................................40
Wired Controller(Optional)
Configuration of connection pipe
...................................................................................41
Safety precautions for installing and relocating the unit ................................... 25
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.

Explanation of Symbols
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;
After verification, defects are due to improper operation during transportation of
product;
4.
Operate, repair, maintain the unit without abiding by instruction manual or related
regulations;
5.
After verification, the problem or dispute is caused by the quality specification or
performance of parts and components that produced by other manufacturers;
6.
The damage is caused by natural calamities, bad using environment or force
majeure.
7.
After verification, the defect of product is directly caused by corrosive gas;3.
Exception Clauses
Manufacturer will bear no responsibilities when personal injury or
property loss is caused by the following reasons.
Indicates a hazardous situation that, if not avoided, will
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 OT IC E
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.
When refrigerant leaks or requires discharge during installation, maintenance,
or disassembly, it should be handled by certified professionals or otherwise in
compliance with local laws and regulations.

Precautions
WARNING
1
Operation and Maintenance
This appliance can be used by children aged from 8
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.
Children shall not play with the appliance.
Cleaning and user maintenance shall not be made by
children without supervision.
Do not connect air conditioner to multi-purpose socket.
Otherwise, it may cause fire hazard.
Do disconnect power supply when cleaning air
conditioner. Otherwise, it may cause electric shock.
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 wash the air conditioner with water to avoid
electric shock.
Do not spray water on indoor unit. It may cause electric
shock or malfunction.
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 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.
2

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
3
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.
4

Precautions
The indoor unit should be installed close to the wall.
Instructions for installation and use of this product are
provided by the manufacturer.
WARNING
If you need to relocate the air conditioner to another
place, only the qualified person can perform the work.
Otherwise, it may cause personal injury or damage.
For the air conditioner without plug, an circuit break
must be installed in the line.
For the air conditioner with plug, the plug should be
reachable after finishing installation.
Select a location which is out of reach for children and
far away from animals or plants. If it is unavoidable,
please add the fence for safety purpose.
Maximum cooling 27/19(81/66)
Indoor side DB/WB(℃/°F)
46/24(115/75)
Outdoor side DB/WB(℃/°F)
Maximum heating 27/-(81/-) 24/18(75/64)
●
Working temperature range
The operating temperature range (outdoor temperature) for cooling only unit is
NOTICE:
For some models:
-15 ~ 46℃(5 ~ 115°F) ; for heat pump unit is -20℃~ 46℃(-4 ~ 115°F).
●The operating temperature range (outdoor temperature) for cooling only unit is
-20℃~ 46℃(-4 ~ 115°F) ; for heat pump unit is -25℃~ 46℃(-13 ~ 115°F).
5
For models: BRS30HPJ1OA、BRS30HPJ1IA、
BRS36HPJ1OA、BRS36HPJ1IA

6
Parts name
Outdoor Unit air inlet
Connection wire
air outlet
(Display content or position may be different from above
graphics, please refer to actual products)
Indoor Unit air inlet
panel
aux.button
horizontal louver
air outlet
NOTICE:
Actual product may be different from above graphics, please refer to actual
products.
remote controller

temp.
indicator display
indicator
For some models:
receiver
window
Power indicator
Display content or position may be different from above graphics, please refer to actual
products.
Display
W R G
temp.
indicator
display
receiver
window
W R O
temp.
indicator
display
receiver
window
heating
indicator temp. indicator
cooling
indicator power indicator receiver window
drying
indicator display
For some models:
For some models:
For some models:
For some models:
heating
indicator
temp.
indicator
cooling
indicator
power
indicator
receiver
window
drying
display
For some models:
heating
indicator temp.
indicator
cooling
indicator power
indicator
receiver
window
drying
indicator
G
W
R
Power LED color indicator:
Green-status-ON.
Red -status-OFF.
Mode LED color indicator:
White-W-Cool Mode-
Red-R-Heat Mode-
Green-G-Dry Mode-
O
W
R
Power LED color indicator:
Green-status-ON.
Red -status-OFF.
Mode LED color indicator:
White-W-Cool Mode-
Red-R-Heat Mode-
Orange-O-Dry Mode-
(only for heating model)
(only for heating model)
7
Parts name

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

9
● When selecting auto mode, air conditioner will operate automatically according
to ex-factory setting. 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 mod-
●
● When selecting fan mode, the air conditioner will only blow fan, no cooling and
no heating. All indicators are OFF. Press "FAN" button to adjust fan speed. Press
" " / " " button to adjust fan blowing angle.
Introduction for buttons on remote controller
Note:
● After putting through the power, the air conditioner will give out a sound.
● 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 “de” sound, which means the signal has been sent to the air conditioner.
ON/OFF button
MODE button
▲
1
2
Press this button to select your required operation mode.
AUTO COOL FANDRY HEAT
● 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.
●
▲
els.) 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’t be adjusted. 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).
Press this button to turn on the unit. Press this button again to turn off the unit.
Operation indicator " " is ON (red indicator, the colour is different for different
models). After that, you can operate the air conditioner by using remote controller.

FAN button
3
Pressing this button can set fan speed circularly as: auto (AUTO), low( ), medium
( ), high( ).
Auto
Introduction for buttons on remote controller
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: 16~30℃(61-86°F);
Fan speed: auto, low speed, medium speed, high speed.
TURBO button
4
Under COOL or HEAT mode, press this button to turn to quick COOL or quick
HEAT mode. " " icon is displayed on remote controller. Press this button again
to exit turbo function and " " icon will disappear.
If start this function, the unit will run at super-high fan speed to cool or heat quickly
so that the ambient temp. approachs the preset temp. as soon as possible.
▲
▲/ 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
▲
▲
●It’s Low fan speed under Dry 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 a few minutes. at low speed. In this
period, Holdfan speed button for 2s to stop indoor fan directly.
Having set X-FAN function off: After turning off the unit by pressing ON/OFF
button, the complete unit will be off directly.
X-FAN function Holdfan speed button for 2s in COOL or DRYmode, the icon “ ” is
displayed and the 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.
●
●
●
●Under AUTO speed, air conditioner will select proper fan speed automatically
according to ex-factory setting.
Note:
10

▲
▲
● When setting T-ON, T-OFF or CLOCK, press "▲" or " " button to adjust time.
(Refer to CLOCK, T-ON, T-OFF buttons) When setting T-ON, T-OFF or CLOCK
press "▲" or " " button to adjust time. (Refer to CLOCK,T-ON, T-OFF buttons)
Note:
● Press this button continuously more than 2s, the main unit will swing back and
forth from left to right, and then loosen the button, the unit will stop swinging and
present position of guide louver will be kept immediately.
● Under swing left and right mode, when the status is switched from off to , if
press this button again 2s later, status will switch to off status directly; if press
this button again within 2s, the change of swing status will also depend on the
circulation sequence stated above.
Introduction for buttons on remote controller
7
Press this button can select up & down swing angle. Fan blow angle can be selected
circularly as below:
● When selecting " ", air conditioner is blowing fan automatically. Horizontal
louver will automatically swing up & down at maximum angle.
● When selecting " 、 、 、 、 ", air conditioner is blowing fan at fixed
position. Horizontal louver will stop at the fixed position.
● When selecting " 、 、 ", air conditioner is blowing fan at fixed angle.
Horizontal louver will send air at the fixed angle.
● Hold " " button above 2s to set your required swing angle. When reaching your
required angle, release the button.
Note:
● " 、 、 " may not be available. When air conditioner receives this signal, the
air conditioner will blow fan automatically.
● Press this button continuously more than 2s, the main unit will swing back and
forth from up to down, and then loosen the button, the unit will stop swinging and
present position of guide louver will be kept immediately.
● Under swing up and down mode, when the status is switched from off to , if
press this button again 2s later, status will switch to off status directly; if press
no display
(horizontal louvers stops
at current position)
button
this button again within 2s, the change of swing status will also depend on the
circulation sequence stated above.
auto mode)
6
Press this button can select left & right swing angle. Fan blow angle can be selected
circularly as below:
button
no display
(stops at current position)
11

Introduction for buttons on remote controller
Note:
● Under on and off status, you can set T-OFF or T-ON simultaneously.
● Before setting T-ON or T-OFF, please adjust the clock time.
● After starting up T-ON or T-OFF, set the constant circulating valid.
After that, air conditioner will be turned on or turned off according to setting time.
ON/OFF button has no effect on setting. If you don’t need this function, please
use remote controller to cancel it.
I FEEL button
9
Press this button to start I FEEL function and " " will be displayed on the remote
controller. After this function is set, the remote controller will send the detected
ambient temperature to the controller and the unit will automatically adjust the
indoor temperature according to the detected temperature. Press this button again
to close I FEEL function and " " will disappear.
● Please put the remote controller near user when this function is set. Do not put
the remote controller near the object of high temperature or low temperature in
order to avoid detecting inaccurate ambient temperature.
● T-ON button
"T-ON" button can set the time for timer on. After pressing this button, " "
icon disappears and the word "ON" on remote controller blinks. Press "▲" or
" " button to adjust T-ON setting. After each pressing "▲" or " " button,
T-ON setting will increase or decrease 1min. Hold "▲" or " " button, 2s
later, the time will change quickly until reaching your required time.
Press "T-ON" to confirm it. The word "ON" will stop blinking. " " icon
resumes displaying. Cancel T-ON: Under the condition that T-ON is started up,
press "T-ON" button to cancel it.
● T-OFF button
"T-OFF" button can set the time for timer off. After pressing this button," "
icon disappears and the word "OFF" on remote controller blinks. Press "▲" or
" " button to adjust T-OFF setting. After each pressing "▲" or " " button,
T-OFF setting will increase or decrease 1min. Hold "▲" or " " button, 2s
later, the time will change quickly until reaching your required time.
Press "T-OFF" word "OFF" will stop blinking. " " icon resumes displaying.
Cancel T-OFF. Under the condition that T-OFF is started up, press "T-OFF"
button to cancel it.
▲
▲
▲
▲
T-ON / T-OFF button
8
▲
▲
12

13
Press this button to achieve the on and off of healthy and scavenging functions in
LCD displays " ". Press the button for the second time to start healthy and
scavenging functions simultaneously; LCD displays " " and " ". Press this
button for the third time to quit healthy and scavenging functions simultaneously.
Press the button for the fourth t ime to start healthy function; LCD display " ".
Press this button again to repeat the operation above.
● This function is applicable to partial of models.
button
● 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.
13
12
Introduction for buttons on remote controller
Press this button to set clock time. " " icon on remote controller will blink. Press
"▲" or " " button within 5s to set clock time. Each pressing of "▲" or " " button,
clock time will increase or decrease 1 minute. If hold "▲" or " " button, 2s later,
time will change quickly. Release this button when reaching your required time.
Note:
● Clock time adopts 24-hour mode.
● The interval between two operation can’t exceeds 5s. Otherwise, remote contro-
ller will quit setting status. Operation for T-ON/T-OFF is the same.
CLOCK button
SLEEP button
11
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, the time of time can be adjusted. Under Fan DRY and Auto modes,
this function is not available.
10
▲
▲▲
WiFi button

14
LIGHT button
14
Press this button to turn off display light on indoor unit. " " icon on remote
controller disappears. Press this button again to turn on display light. " " icon is
displayed.
Introduction for buttons on remote controller
15 TEMP button
By pressing this button, you can see indoor set temperature, indoor ambient temp-
erature or outdoor ambient temperature on indoor unit’s display. The setting on
remote controlleris selected circularly as below:
no display
● When selecting " " or no display with remote controller, temperature indicator
on indoor unit displays set temperature.
● When selecting " " with remote controller, temperature indicator on indoor unit
displays indoor ambient temperature.
● When selecting " " with remote controller, temperature indicator on indoor unit
displays outdoor ambient temperature.
Note:
● Outdoor temperature display is not available for some models. At that time, indoor
unit receives " " signal, while it displays indoor set temperature.
● It’s defaulted to display set temperature when turning on the unit.There is no
display in the remote controller.
● Only for the models whose indoor unit has dual-8 display.
● When selecting displaying of indoor or outdoor ambient temperature, indoor
temperature indicator displays corresponding temperature and automatically turn

15
Function introduction for combination buttons
Energy-saving function
Under cooling mode, press "TEMP" and " CLOCK" buttons simultaneously 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 "TEMP" and "CLOCK" buttons simultaneously again to
exit energy-saving function.
Note:
● Under energy-saving function, fan speed is defaulted at auto speed and it can’t
be adjusted.
● Under energy-saving function, set temperature can’t be adjusted. Press "TURBO"
button and the remote controller won’t send signal.
● Sleep function and energy-saving function can’t operate at the same time. If
energy-saving function has been set under cooling mode, press sleep button will
cancel energy-saving function. If sleep function has been set under cooling
mode, start up the energy-saving function will cancel sleep function.
8℃heating function
Under heating mode, press "TEMP" and "CLOCK" buttons simultaneously to start
up or turn off 8
℃
heating function. When this function is started up, " " and "8
℃
"
will be shown on remote controller, and the air conditioner keep the heating status
at 8℃. Press "TEMP" and "CLOCK" buttons simultaneously again to exit 8℃
heating function.
Note:
● Under 8℃ heating function, fan speed is defaulted at auto speed and it can’t be
adjusted.
● Under 8℃ heating function, set temperature can’t be adjusted. Press " TURBO "
button and the remote controller won’t send signal.
● Sleep function and 8℃ heating function can’t operate at the same time. If 8℃
heating function has been set under cooling mode, press sleep button will cancel
8℃ heating function. If sleep function has been set under cooling mode, start up
the 8℃ heating function will cancel sleep function.
● Under ℉ temperature display, the remote controller will display 46 ℉ heating.
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
1. After putting through the power, press "ON/OFF" button on remote controller to
turn on the air conditioner.
2. Press "MODE" button to select your required mode: AUTO, COOL, DRY, FAN,
HEAT.
3. Press "▲" or " " button to set your required temperature. (Temperature can’t
be adjusted under auto mode).
4. Press "FAN" button to set your required fan speed: auto, low speed, medium
speed, high speed.
Operation guide
▲
Replacement of batteries in remote controller
●During operation, point the remote control signal sender at the receiving
window on indoor unit.
●The distance between signal sender and receiving window should be no
more than 8m, and there should be no obstacles between them.
●Signal may be interfered easily in the room where there is fluorescent lamp
or wireless telephone; remote controller should be close to indoor unit during
operation.
●Replace new batteries of the same model when replacement is required.
●When you don’t use remote controller for a long time, please take out the
batteries.
●If the display on remote controller is fuzzy or there’s no display, please
replace batteries.
NOTICE
5. Press " " button to select fan blowing angle.
1. Lift the cover along the direction of arrow (as shown in Fig 1①).
2. Take out the original batteries (as shown in Fig 1 ②).
3. Place two 7# (AAA 1.5V) dry batteries, and make sure the position of “+”
polar and “-” polar is correct (as shown in Fig 2③).
4. Reinstall the cover (as shown in Fig 2 ④).
Fig.1 Fig.2