Sinclair MV-H09BIF, MV-H12BIF, MV-H18BIF, MV-H24BIF User Manual

Content

Operation Notices

The Refrigerant......................................................................................................1

Precautions............................................................................................................2

Parts Name............................................................................................................7

ScreenOperation Guide

Buttons on remote controller .................................................................................9

Introduction for icons on display screen.................................................................9

Introduction for buttons on remote controller ........................................................10

Function introduction for combination buttons.....................................................17

Operation guide ...................................................................................................18

Replacement of batteries in remote controller .....................................................18

Emergency operation ..........................................................................................19

Maintenance

Clean and Maintenance.......................................................................................19

Malfunction

Malfunction analysis ............................................................................................22

Installation Notice

Safety operation of flammable refrigerant............................................................26

Installation dimension diagram ............................................................................28

Safety precautions for installing and relocating the unit.......................................29

Tools for installation .............................................................................................30

Selection of installation location ..........................................................................30

Requirements for electric connection ..................................................................31

Installation

Installation of indoor unit......................................................................................32

Check after installation ........................................................................................37

Test and operation

Test operation ......................................................................................................37

Attachment

Configuration of connection pipe.........................................................................38

Pipe expanding method .......................................................................................40

R32: 675

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.

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 the

y 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.

Frequency band(s) in which the radio equipment operates

2400MHz-2483.5MHz
Maximum radio-frequency power transmitted in the frequency band(s) in which the radio equipment
operates

20dBm

Explanation of Symbols

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.

WARNING

CAUTION

DANGER

N OT IC 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 nea­rest 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 X m .

Appliance filled with flammable gas R32. For repairs, strictly follow manufacturer’s
instructions only. Be aware that refrigrants not contain 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

Make sure the power supply matches with the
requirement of air conditioner.Unstable power supply or
incorrect wiring or malfunction. Please install proper power
supply cables before using the air conditioner.

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

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

Indoor side DB/WB(

℃

Outdoor side DB/WB(

℃

Maximum cooling 32/23 43/26

Maximum heating 27/- 24/18

NOTICE:

Working temperature range

6

● The operating temperature range (outdoor temperature) for Low-temperature
cooling only unit is -15℃~ 43℃; for Low-temperature heat pump unit is

-22℃

~ 43℃.

7

Display

(Display content or position may be different from above
graphics, please refer to actual products)

remote control

NOTICE:

Actual product may be different from above graphics, please refer to actual
products.

air inlet

panel

filter

aux.button

horizontal louver

air outlet

Parts Name

Indoor Unit

temp.
indicator

display

For some model:

receiver
window

Power indicatior

Parts Name

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 model:

For some model:

For some model:

For some model:

heating
indicator

temp.
indicator

cooling
indicator

power
indicator

receiver
window

drying
indicator

display

For some model:

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 Mode­Green-G-Dry Mode-

O

W

R

Power LED color indicator:
Green-status-ON.
Red -status-OFF.

Mode LED color indicator:
White-W-Cool Mode­Red-R-Heat Mode-

Orange-O-Dry Mode-

(only for heating model)

(only for heating model)

8

9

Buttons on remote controller

Introduction for icons on display screen

6

3

7

9

11

13

15

12

14

16

10

8

5

4

2

1

6 button

7 button

15 button

16 TEMP button

8 SLEEP button

1 ON/OFF button

2 MODE button

3 FAN button

4 TURBO button

5

▲

▲/ button

Send signal

Turbo mode

Scavenging functions
8℃ heating function

Set temperature

Set time

X-FAN function

TIMER ON/TIMER OFF

Child lock
Up & down swing
Left & right swing

Light

Temp. display type

:Set temp.

:Outdoor ambient temp.

:Indoor ambient temp.

Sleep mode

Clock

Heat mode

Fan mode

Dry mode

Cool mode

Auto mode

Operation mode

I feel

Healthy mode

Quiet

WiFi

This is a general remote controller.Some
models have this function while some
do not. Please refer to the actual models.

{

Set fan speed

9 I FEEL button

10 TIMER ON / TIMER OFF button

11 CLOCK button

12 QUIET button

13

WiFi button

14 LIGHT button

10

●

● 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). Pres▲s "▲" 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 cond tioner 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.

● dna gnilooc on ,naf wolb ylno lliw renoi tdnoc ria eht ,edom naf gnitceles nehW
no heating. All indicators are OFF,Operation indicator is ON. Press "FAN" button

● After putting through the power, the air conditioner will give out a sound.
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.

●

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 “d

●

As for the models with functions of WiFi or wired controller, the indoor unit must
has been controlled by standard remote controller under auto mode first, and then
the function of adjustable temperature under auto mode can be realized by APP
or the wired controller.

●

This remote controller can adjust the temperature under auto mode. When matching
with the unit which is without the function of adjustable temperature under auto mode,
the set temperature under auto mode may be invalid, or the displayed set temperature
on the unit is not same as that on the remote controller under auto mode.

i” sound, which means the signal has been sent to the air conditioner.

MODE button

2

1

ON/OFF button

Press this button to turn on the unit. Press this button again to turn off the unit.

Press this button to select your required operation mode.

AUTO COOL DRY FAN HEAT

" " / " " button can adjust fan blowin g angle.

● 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.

Introduction for buttons on remote controller

Note:

gnidrocca yllacitamotua etarepo lliw reno itidnoc ria ,edom otua gnitceles nehW

to the sensed temperature. Press "F AN" button can adjust fan speed. Press

● For preventing cold air, after starting up heating mode, indoor unit will delay 1~5

●

● Under auto mode, temperature can be displayed;Under auto mode,

,

Low-Medium speed

Medium-High speed

Medium speed

High speed

●

●

11

Introduction for buttons on remote controller

Note:

set temperature can be adjusted.

to

Auto

Low speed

Note:

●

It’s Low fan speed under Dry mode

X-FAN function Hold fan speed button for 2s in COOL or DRY mode, 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.

4

TURBO button

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.

3

FAN button

This button is used for setting Fan Speed in the sequence that goes from AUTO,

, ,

,

then back to Auto.

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, Hold fan 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.

This function indicates that moisture on evaporator of indoor unit will be blowed
after the unit is stopped to avoid mould.

●

minutes to blow air (actual delay time is d epend on indoor ambient temperature).

Set temperature range from remote controller: 16~30 ℃(61-86°F);
Fan speed: auto, low speed, low-medium speed,medium speed, medium-high
speed,high speed.

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 djust 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).

6

●

●

The

7

●

●

●

●

Press this button can select left & right swing angle. Fan blow angle can be selected
circularly as below:

Press this button can select up & down swing angle. Fan blow angle can be selected
circularly as below:

Note:

●

no display
(horizontal louvers stops
at current position)

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.

When setting TIMER ON, TIMER OFF or CLOCK, press "▲" or " " button to

▲

adjust time. (Refer to CLOCK, TIMER ON, TIMER OFF buttons) When setting

TIMER ON, TIMER OFF or CLOCK, press "▲" or "

▲

" button to adjust time. (Refer

to CLOCK, TIMER ON, TIMER OFF buttons)

Introduction for buttons on remote controller

●

The function is only available for some model.

Press this button continuously more than 2s, the main unit will swing back an
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.

●

so that the ambient temp. approachs the preset temp. as soon as possible.

▲

▲/ button

5

Holding "▲" or " " button, 2s lat▲er, set temperature on remote controller will

change quickly . On releasing button after setting is finished, temperature indica-
tor on indoor unit will change accordingly.

Press "▲" or " " button once increase or decrease set temperature 1 ℃(°F).

If start this function, the unit will run at super-high fan speed to cool or heat quickly

12

13

Introduction for buttons on remote controller

the Sleep, circulate between these, after electrified, Sleep Cancel is defaulted.
Sleep 1 is Sleep mode 1, in Cool modes; sleep status after run for one hour, the

main unit setting temperature will increase 1 , two hours, setting temperature increa­sed 2 , then the unit will run at this setting temperature; In Heat mode: sleep status
after run for one hour, the setting temperature will decrease 1 , two hours, setting
temperature will decrease 2 , then the unit will run at this setting temperature.

● Sleep 2 is sleep mode 2, that is air conditioner will run according to the presetting a
group of sleep temperature curve.

● Sleep 3-the sleep curve setting under Sleep mode by DIY;
(1)Under Sleep 3 mode, press “Turbo” button for a long time, remote controller enters
into user individuation sleep setting status, at this time, the time of remote controller
will display “1hour”, the setting temperature “88” will display the corresponding temp-

erature of last setting sleep curve and blink (The first entering will display according to
the initial curve setting value of original factory);
(2)Adjust "▲" and " "

▲

button, could change the corresponding setting temperature,

after adjusted, press “Turbo” button for confirmation;
(3) At this time, 1hour will be automatically increased at the timer postion on the remote

control, (that are "2hours" or "3hours" or "8hours"), the place of setting temperature "88"
will display the corresponding temperature of last setting sleep curve and blink;
(4) Repeat the above step (2)~(3) operation, until 8 hours temperature setting finished,
sleep,curve setting finished, at this time, the remote controller will resume the original
timer display; temperature display will resume to original setting temperature.

●

Sleep3- the sleep curve setting under Sleep mode by DIY could be inquired:
The user could accord to sleep curve setting method to inquire the presetting sleep
curve,

enter into user individuation sleep setting status, but do not change the tempera­ture, press “Turbo” button directly for confirmation. Note: In the above presetting or
enquiry procedure, if continuously within 10s, there is no button pressed, the sleep
curve setting within 10s, there is no button pressed, the sleep curve setting status will
be automatically quit and resume to display the original displaying. In the presetting or

8

SLEEP button

● Press this button, can select Sleep 1 ( ), Sleep 2 ( ), Sleep 3 ( ) and cancel

●

●

、 、

" 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 an
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

this button again within 2s, the change of swing status will also depend on the
circulation sequence stated above.

Note:

●

14

Introduction for buttons on remote controller

Note:

● Under on and off status, you can set TIMER OFF or TIMER ON simultaneously.

● Before setting TIMER ON or TIMER OFF, please adjust the clock time.

● After starting up TIMER ON or TIMER 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.

the remote controller near the object of high temperature or low temperature in
order to avoid detecting inaccurate ambient temperature. When I FEEL function
is turned on, the remote controller should be put within the area where indoor
unit can receive the signal sent by the remote controller.

● TIMER ON button
"TIMER 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 TIMER ON setting. After each pressing "▲" or " " button,

▲

TIMER ON setting will increase or decrease 1min. Hold "▲" or " " button, 2s

▲

later, the time will change quickly until reaching your required time.
Press "TIMER ON" to confirm it. The word "ON" will stop blinking. " " icon
resumes displaying. Cancel TIMER ON: Under the condition that TIMER ON is
started up, press "TIMER ON" button to cancel it.

● TIMER OFF button
"TIMER 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 TIMER OFF setting. After each pressing "▲" or " " button,

▲

TIMER OFF setting will increase or decrease 1min. Hold "▲" or " " button, 2s

▲

later, the time will change quickly until reaching your required time.
Press "TIMER OFF" word "OFF" will stop blinking. " " icon resumes displaying.
Cancel TIMER OFF. Under the condition that TIMER OFF is started up, press
"TIMER OFF" button to cancel it.

10

TIMER ON / TIMER OFF button

11

CLOCK button

Press this button to set clock time. " " icon on remote controller will blink. Press

9

I FEEL button

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

enquiry procedure, press

"ON/OFF" button, "Mode" button, "Timer" button or "Sleep"

button, the sleep curve setting or enquiry status will quit similarly.

15

14

LIGHT button

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

button

Press this button to achieve the on and off of healthy and scavenging functions in
operation status. Press this button for the first time to start scavenging function;

13

WiFi button

12

QUIET button

Press this button, the Quiet status is under the Auto Quiet mode (display " " and
"AUTO" signal ) and Quiet mode (display " " singal) and Quiet OFF (there is no
signal of " " displayed), after powered on, the Quiet OFF is defaulted.

Note:

●

The Quiet function can be set up in all modes; Under the Quiet mode,

the fan

speed is not available.

●

●

The Quiet function is only available for some models.

When quiet function is selected

Under cooling mode: indoor fan operates at notch 4 speed. 10 minutes later or

when indoor ambient temperature≤28℃, indoor fan will operate at notch 2 speed

or quiet mode according to the comparison between indoor ambinet temperature
and set temperature.
Under heating mode: indoor fan operates at notch 3 speed or quiet mode according
to the comparison between indoor ambient temperature and set temperature.
Under dry, fan mode: indoor fan operates at quiet mode.
Under auto mode: the indoor fan operates at the auto quiet mode according to
actual cooling, heating or fan mode.

● 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.

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 TIMER ON/TIMER OFF is the same.

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.
Press "CLOCK" button to confirm the time. " " icon stops blinking.

▲

"▲" or " " button within 5s to set clock time. Each pressing of "▲" or " " button,

▲

16

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.

16

TEMP button

By pressing this button, you can see indoor set temperature, indoor ambient temp­erature 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

to display set temperature after three or five seconds.

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 time to start healthy function; LCD display " " .
Press this button again to repeat the operation above.

●

This function is applicable to partial of models.

Introduction for buttons on remote controller

17

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 temp­erature display between ℃ and ℉.

▲

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.

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.

●

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.

18

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.

4.

Press "FAN" button to set your required fan speed: auto, low speed, low-medium

speed,medium speed, medium-high speed,high speed.

Operation guide

▲

Replacement of batteries in remote controller

1. Press the back side of remote controller marked
with " ", as shown in the fig, and then push out
the cover of battery box along the arrow direction.

2. Replace two 7# (AAA 1.5V) dry batteries, and
make sure the position of "+" polar and "-" polar
are correct.

3. Reinstall the cover of battery box.

signal sender battery

Cover of battery box

remove

reinstall

● 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 fiuorescent 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.

Emergency operation

air conditioner. When the air conditioner is turned on, it will operate under
auto mode.

aux. button

panel

WARNING

NOTICE:

WARNING:

Use insulated object to press the auto button

If remote controller is lost or damaged, please use auxiliary button to turn
on or turn off the air conditioner. The operation in details are as below:

19

Clean and maintenance

■ Turn off the air conditioner and disconnect the power before cleaning the air
conditioner to avoid electric shock.

■ Do not wash the air conditioner with water to avoid electric shock.

■ Do not use volatile liquid to clean the air conditioner.

Clean surface of indoor unit

When the surface of indoor unit is dirty, it is recommended to use a soft dry cloth
or wet cloth to wipe it.

● Do not remove the panel when cleaning it.

Clean and Maintenance

1

2

3

4

Open panel

Pull out the panel to a certain ● Use dust catcher or water to

the water (below 45℃) to clean
it, and then put it in a shady
and cool place to dry.

panel cover tightly.

operation environment, clean frequency can be increased.

WARNING

20

Clean and Maintenance

1. Check whether air inlets and air outlets are blocked.

2. Check whether air switch, plug and socket are in good condition.

4. Check whether mounting bracket for outdoor unit is damaged or corroded.
If yes, please contact dealer.

5. Check whether drainage pipe is damaged.

1. Disconnect power supply.

3. Check whether mounting bracket for outdoor unit is damaged or corroded.
If yes, please contact dealer.

Notice for recovery

1. Many packing materials are recyclable materials.
Please dispose them in appropriate recycling unit.

2. If you want to dispose the air conditioner, please contact local dealer or
consultant service center for the correct disposal method.

21

NOTICE: Checking before use-season

NOTICE: Checking after use-season

Malfunction analysis

General phenomenon analysis

Please check below items before asking for maintenance. If the malfunction still

Phenomenon Check items Solution

Indoor unit
can’t receive
remote
controller’s
signal or
remote
controller
has no
action.

● Whether it's interfered severely
(such as static electricity, stable
voltage)?

● Whether remote controller is
within the signal receiving
range?

● Whether there are obstacles?

● Whether remote controller is
pointing at the receiving
window?

● Is sensitivity of remote contro-

ller low; fuzzy display and no

display?

● No display when operating
remote controller?

● Fluorescent lamp in room?

● Pull out the plug. Reinsert
the plug after about 3min, and
then turn on the unit again.

● Signal receiving range is 8m.

● Remove obstacles.

●

Select proper angle and point
the remote controller at the re-

ceiving window on indoor unit.

● Check the batteries. If the

power of batteries is too low,
please replace them.

● Take the remote controller
close to indoor unit.

and then try it again.

● Check whether remote cont-

roller appears to be damaged.

If yes, replace it.

No air
emitted
from
indoor
unit

● Air inlet or air outlet of indoor
unit is blocked?

● Eliminate obstacles.

● Under heating mode, indoor
temperature is reached to set
temperature?

● After reaching to set temper­ ature, indoor unit will stop bl­ owing out air.

● Heating mode is turned on just
now?

● In order to prevent blowing
out cold air, indoor unit will be
started after delaying for sev-

eral minutes, which is a nor­ mal phenomenon.

22

Malfunction analysis

● Power failure?

● Is plug loose?

● Air switch trips off or fuse is

burnt out?

● Wiring has malfunction?

● Unit has restarted immediately

after stopping operation?

● Whether the function setting

for remote controller is
correct?

● Reset the function.

● Wait for 3min, and then turn

on the unit again.

● Ask professional to replace it.

● Ask professional to replace

air switch or fuse.

● Reinsert the plug.

● Wait until power recovery.

Air condit­ioner can’t
operate

Mist is em­itted from
indoor unit’s
air outlet

● Indoor temperature and hum­ idity is high?

● Because indoor air is cooled

rapidly. After a while, indoor
temperature and humidity will
be decrease and mist will
disappear.

Phenomenon Check items Solution

Set temper­ature can’t
be adjusted

● Your required temperature

exceeds the set temperature
range?

● Set temperature range:

16℃~30℃.

Cooling
(heating)
effect is
not good.

● Voltage is too low?

● Wait until the voltage

resumes normal.

● Filter is dirty?

● Set temperature is in proper

range?

● Adjust temperature to proper

range.

● Door and window are open? ● Close door and window.

23

Phenomenon Check items Solution

Odours are
emitted

● Whether there’s odour source,
such as furniture and cigarette,
etc.

● Eliminate the odour source.

● Whether there’s interference,
such as thunder, wireless
devices, etc.

● Disconnect power, put back
power, and then turn on the
unit again.

“Wa te r

noise

● Air conditioner is turned on or
turned off just now?

● The noise is the sound of

the unit, which is a normal
phenomenon.

Cracking
noise

● Air conditioner is turned on or
turned off just now?

● This is the sound of friction
caused by expansion and/or
contraction of panel or other
parts due to the change of
temperature.

Malfunction analysis

Air conditio­ner operates
abnormally

24

Error code

E5

E8

U8

H6

C5

F1
F2

Troubleshooting

It can be eliminated after restarting the unit. If not, please

It can be eliminated after restarting the unit. If not, please

It can be eliminated after restarting the unit. If not, please

It

Note: If there're other error codes, please contact qualified professionals for

service.

can be eliminated after restarting the unit. If not, please

F0

■ When below phenomenon occurs, please turn off air conditioner and discon-

for service.

● Power cord is overheating or damaged.

● There’s abnormal sound during operation.

● Air switch trips off frequently.

● Air conditioner gives off burning smell.

● Indoor unit is leaking.

■ If the air conditioner operates under abnormal conditions, it may cause

Malfunction analysis

Error Code

● When air conditioner status is abnormal, temperature indicator on indoor unit will

ation of error code.

25

WARNING

H3

It can be eliminated after restarting the unit. If not, please

It can be eliminated after restarting the unit. If not, please

E1

E6

It can be eliminated after restarting the unit. If not, please

26

All the work men who are engaging in the refrigeration system should bear the
valid certification awarded by the authoritative organization and the qualification
for dealing with the refrigeration system recognized by this industry. If it needs
other technician to maintain and repair the appliance, they should be supervised
by the person who bears the qualification for using the flammable refrigerant.

It can only be repaired by the method suggested by the equipment’s manufacturer.

Safety operation of flammable refrigerant

Qualification requirement for installation and maintenance man

Installation notes

The air conditioner is not allowed to use in a room that has running fire (such as fire
source, working coal gas ware, operating heater).

Maintenance notes

Welding

Check whether the maintenance area or the room area meet the requirement of the

nameplate.

- It’s only allowed to be operated in the rooms that meet the requirement of the

Check whether the maintenance area is well-ventilated.

- The continuous ventilation status should be kept during the operation process.

Check whether there is fire source or potential fire source in the maintenance area.

- The naked flame is prohibited in the maintenance area; and the “no smoking”
warning board should be hanged.

nameplate.

Check whether the appliance mark is in good condition.

- Replace the vague or damaged warning mark.

If you should cut or weld the refrigerant system pipes in the process of maintaining,
please follow the steps as below:

It is not allowed to drill hole or burn the connection pipe.
The air conditioner must be installed in a room that is larger than the minimum room
area. The minimum room area is shown on the nameplate or following table a.
Leak test is a must after installation.

table a - Minimum room area ( m )

2

Charge amount (kg)

≤1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4 2.5

/

/

/

/

14.5 16.8 19.3 22 24.8 27.8 31 34.3 37.8 41.5 45.4 49.4 53.6

5.2 6.1 7 7.9 8.9 10 11.2 12.4 13.6 15 16.3 17.8 19.3

1.6 1.9 2.1 2.4 2.8 3.1 3.4 3.8 4.2 4.6 5 5.5 6

1.1 1.3 1.4 1.6 1.8 2.1 2.3 2.6 2.8 3.1 3.4 3.7 4

floor location

wall mounted

window mounted

ceiling mounted

Minimum

room

2

area( m )

27

Safety operation of flammable refrigerant

Filling the refrigerant

Safety instructions for transportation and storage

a. Shut down the unit and cut power supply
b. Eliminate the refrigerant
c. Vacuuming
d. Clean it with N2 gas
e. Cutting or welding
f. Carry back to the service spot for welding

The refrigerant should be recycled into the specialized storage tank.

Make sure that there isn’t any naked flame near the outlet of the vacuum pump
and it’s well-ventilated.

Use the refrigerant filling appliances specialized for R32. Make sure that different

kinds of refrigerant won’t contaminate with each other.

After filling is finished, please do the leakage detection before test running; another
time of leak detection should be done when it’s removed.

Please use the flammable gas detector to check before unload and open the container.
No fire source and smoking.
According to the local rules and laws.

The refrigerant tank should be kept upright at the time of filling refrigerant.

Stick the label on the system after filling is finished (or haven’t finished).

Don’t overfilling.

28

Installation dimension diagram

At least 250cm

At least 15cm

At least 300cm

Space to the ceiling

Space to the obstruction

At least 15cm

At least 15cm

Space to the wall

Space to the wall

29

To ensure safety, please be mindful of the following precautions.

Warning

When installing or relocating the unit, be sure to keep the refrigerant
circuit free from air or substances other than the specified refrigerant.

Any presence of air or other foreign substance in the refrigerant circuit will cause
system pressure rise or compressor rupture, resulting in injury.

When installing or moving this unit, do not charge the refrigerant which
is not comply with that on the nameplate or unqualified refrigerant.

Otherwise, it may cause abnormal operation, wrong action, mechanical
malfunction or even series safety accident.

When refrigerant needs to be recovered during relocating or repairing the
unit, be sure that the unit is running in cooling mode.Then, fully close the
valve at high pressure side (liquid valve).About 30-40 seconds later, fully
close the valve at low pressure side (gas valve), immediately stop the unit
and disconnect power. Please note that the time for refrigerant recovery
should not exceed 1 minute.

If refrigerant recovery takes too much time, air may be sucked in and cause
pressure rise or compressor rupture, resulting in injury.

During refrigerant recovery, make sure that liquid valve and gas valve are
fully closed and power is disconnected before detaching the connection pipe.

If compressor starts running when stop valve is open and connection pipe is not
yet connected, air will be sucked in and cause pressure rise or compressor
rupture, resulting in injury.

When installing the unit, make sure that connection pipe is securely
connected before the compressor starts running.

If compressor starts running when stop valve is open and connection pipe is not
yet connected, air will be sucked in and cause pressure rise or compressor
rupture, resulting in injury.

Prohibit installing the unit at the place where there may be leaked corrosive
gas or flammable gas.

If there leaked gas around the unit, it may cause explosion and other accidents.

Do not use extension cords for electrical connections. If the electric wire
is not long enough, please contact a local service center authorized
and ask for a proper electric wire.

Poor connections may lead to electric shock or fire.

Use the specified types of wires for electrical connections between the
indoor and outdoor units. Firmly clamp the wires so that their terminals
receive no external stresses.

Electric wires with insufficient capacity, wrong wire connections and insecure
wire terminals may cause electric shock or fire.

Safety precautions for installing and relocating the unit

1. There should be no obstruction near air inlet .

2. Select a location where the condensation water can be dispersed easily and
won't affect other people.

3. Select a location which is convenient to connect the outdoor unit and near the
power socket.

4. Select a location which is out of reach for children.

5. The location should be able to withstand the weight of indoor unit and won't

increase noise and vibration.

6. The appliance must be installed 2.5m above floor.

7. Don't install the indoor unit right above the electric appliance.

8. Please try your best to keep way from fluorescent lamp.

Selection of installation location

Basic requirement

Indoor unit

Installing the unit in the following places maycause malfunction. If it is unavoidable,
please consult the local dealer:

1. The place with strong heat sources,

vapors, flammable or explosive gas

, or

volatile objects spread in the air.

2. The place with high-frequency devices (such as welding machine, medical

equipment).

as truck) or in the corrosive environment (such as chemical factory).

3. The place near coast area.

4.

The place with oil or fumes in the air.

5. The place with sulfureted gas.

6. Other places with special circumstances.

7. The appliance shall nost be installed in the laundry.

8. It’s not allowed to be installed on the unstable or motive base structure (such

30

Tools for installation

1 Level meter 2 Screw driver 3 Impact drill

4 Drill head 5 Pipe expander 6 Torque wrench

7 Open-end wrench 8 Pipe cutter 9 Leakage detector

10 Vacuum pump 11 Pressure meter 12 Universal meter

13 Inner hexagon spanner 14 Measuring tape

Note:

● Please contact the local agent for installation.

31

Requirements for electric connection

Grounding requirement

1. Must follow the electric safety regulations when installing the unit.

air switch.

3. Make sure the power supply matches with the requirement of air conditioner.
Unstable power supply or incorrect wiring or malfunction. Please install proper
power supply cables before using the air conditioner.

4. Properly connect the live wire, neutral wire and grounding wire of power socket.

5. Be sure to cut off the power supply before proceeding any work related to
electricity and safety. For models with a power plug, make sure the plug is
within reach after installation.

7. If the supply cord is damaged, it must be replaced by the manufacturer, its

8. The temperature of refrigerant circuit will be high, please keep the interconnec­ tion cable away from the copper tube.

9.

10. Appliance shall be installed, operated and stored in a room with a floor area

Please notice that the unit is filled with flammable gas R32. Inappropriate

larger than “X”m (see table 1).

treatment of the unit involves the risk of severe damages of people and
material. Details to this refrigerant are found in chapter “refrigerant”.

2

The appliance shall be installed in accordance with national wiring regulations.

grounding with specialized grounding device by a professional. Please make
sure it is always grounded effectively, otherwise it may cause electric shock.

2. The yellow-green wire in air conditioner is grounding wire, which can't be used
for other purposes.

3. The grounding resistance should comply with national electric safety regulations.

4. The appliance must be positioned so that the plug is accessible.

5. An all-pole disconnection switch having a contact separation of at least 3mm in

Safety precaution

MV-H12BIF:

Left

Wall

Φ55mm

Right

Mark in the middle of it

Level meter

Rear piping hole

Wall

Space

to the

wall

above

150mm

Space

to the

wall

above

150mm

Φ55mm

Rear piping hole

2. Open a piping hole with the diameter of Φ55 or Φ70 on the selected outlet pipe
position.In order to drain smoothly, slant the piping hole on the wall slightly
downward to the outdoor side with the gradient of 5-10°.

32

Installation of indoor unit

Step one: choosing installation location

Step two: install wall-mounting frame

rm it with the client.

1. Hang the wall-mounting frame on the wall; adjust it in horizontal position with the

plastic expansion particles in the holes.

3. Fix the wall-mounting frame on the wall with tapping screws

and

.

1. Choose the position of piping hole according to the direction of outlet pipe. The

position of piping hole should be a little lower than the wall-mounted frame,
shown as below.

Step three: open piping hole

MV-H18BIF:

Wall

Left

Wall

Φ50mm

Right

Mark in the middle of it

Level meter

Rear piping hole

Space

to the

wall

above

150mm

Space

to the

wall

above

150mm

Φ50mm

Rear piping hole

Left

Wall

Φ55mm

Right

Mark in the middle of it

Level meter

Rear piping hole

Wall

Space

to the

wall

above

150mm

Space

to the

wall

above

150mm

Φ55mm

Rear piping hole

MV-H07,09BIF:

Left

Wall

Φ70mm

Right

Mark in the middle of it

Level meter

Rear piping hole

Wall

Space

to the

wall

above

150mm

Space

to the

wall

above

150mm

Φ70mm

Rear piping hole

MV-H24BIF:

33

1. Aim the pipe joint at the corresponding
bellmouth.

2. Pretightening the union nut with hand.

3. Adjust the torque force by referring to the following sheet. Place the open-end
wrench on the pipe joint and place the torque wrench on the union nut. Tighten
the union nut with torque wrench.

2. When select leading out the pipe
from left or right, please cut off the
corresponding hole on the bottom
case.

cut off
the hole

left right

1. The pipe can be led out in the
direction of right, rear right, left or
rear left.

left

rear left

right

rear right

Step four: outlet pipe

Installation of indoor unit

union nutpipe joint

pipe

Note:

● Pay attention to dust prevention and
take relevant safety measures when
opening the hole.

● The plastic expansion particles are
not provided and should be bought
locally.

Indoor

5-10

outdoor

Φ55/
Φ70

34

nection pipe with insulating pipe, and
then wrap it with tape.

Step six: install drain hose

insulating pipe

1. Connect the drain hose to the outlet pipe of

2. Bind the joint with tape.

outlet

pipe

drain hose

drain hose

tape

outlet pipe

drain hose

insulating pipe

● Add insulating pipe in the indoor

drain hose in order to prevent
condensation.

● The plastic expansion particles are

1. Open the panel, remove the screw
on the wiring cover and then take
down the cover.

wiring cover

screw

panel

Step seven: connect wire of indoor unit

4. Wrap the indoor pipe and joint of con-

Installation of indoor unit

torque wrench

open-end
wrench

indoor pipe

pipe

union nut

Hex nut diameter Tightening torque (N.m)

Φ 6

Φ 9.52

Φ 12
Φ 16
Φ 19

30~40
45~55

60~65
70~75

15~20

indoor unit.

Note:

not provided.

N(1) 2 32

black

Outdoor unit connection

yellow­green

blue brown

4. Put wiring cover back and then tighten the screw.

5. Close the panel.

Installation of indoor unit

Note:

● All wires of indoor unit and outdoor unit should be connected by a professional.

for a new one. Avoid extending the wire by yourself.

installation.

● For the air conditioner without plug, an air switch must be installed in the line.

The air switch should be all-pole parting and the contact parting distance should
be more than 3mm.

power connection
wire

cable-cross
hole

2. Make the power connection wire go
through the cable-cross hole at the back
of indoor unit and then pull it out from
the front side.

35

3. Remove the wire clip; connect the power connection wire to the wiring terminal
according to the color; tighten the screw and then fix the power connection wire
with wire clip.

Note: the wiring board is for reference only, please refer to the actual one.

36

Installation of indoor unit

Step eight: bind up pipe

1. Bind up the connection pipe, power

cord and drain hose with the band.

indoor unit

gas
pipe

indoor and

outdoor power cord

liquid pipe

drain hose

band

2. Reserve a certain length of drain

hose and power cord for installation
when binding them. When binding to
a certain degree, separate the indoor
power and then separate the drain
hose.

3. Bind them evenly.

4. The liquid pipe and gas pipe should
be bound separately at the end.

Note:

● The power cord and control wire
can't be crossed or winding.

● The drain hose should be bound
at the bottom.

drain hose

band

connection pipe

indoor power cord

Step nine: hang the indoor unit

1. Put the bound pipes in the wall pipe and then make them pass through the wall
hole.

2. Hang the indoor unit on the wall-mounting frame.

3. Stuff the gap between pipes and wall hole with sealing gum.

4. Fix the wall pipe.

5. Check if the indoor unit is installed firmly and closed to the wall.

Note:

● Do not bend the drain hose too excessively in order to prevent blocking.

indoor

outdoor

wall pipe

sealing gum

upper hook

lower hook of
wall-mounting frame

37

(heating) capacity.

1. Preparation of test operation

● The client approves the air conditioner.

● Specify the important notes for air conditioner to the client.

2. Method of test operation

● Put through the power, press ON/OFF button on the remote controller to start
operation.

● Press MODE button to select AUTO, COOL, DRY, FAN and HEAT to check
whether the operation is normal or not.

● If the ambient temperature is lower than 16℃, the air conditioner can’t
start cooling.

Is the inlet and outlet of piping hole
been covered?

It may cause insufficient cooling
(heating) capacity or waster eletricity.

Check after installation

Test operation

Items to be checked Possible malfunction

The unit may drop, shake or emit noise.

Have you done the refrigerant leakage
test?

(heating) capacity.

It may cause condensation and water
dripping.

Is water drained well?

It may cause condensation and water
dripping.

Is the voltage of power supply accord­ing to the voltage marked on the
nameplate?

It may cause malfunction or damaging
the parts.

Is electric wiring and pipeline installed
correctly?

It may cause malfunction or damaging
the parts.

Is the unit grounded securely? It may cause electric leakage.

Does the power cord follow the speci-

It may cause malfunction or damaging
the parts.

Is there any obstruction in the air inlet
and outlet?

(heating) capacity.

The dust and sundries caused during
installation are removed?

It may cause malfunction or damaging
the parts.

The gas valve and liquid valve of
connection pipe are open completely?

38

1. Standard length of connection pipe

● 5m、7.5m、8m

4. The calculation method of additional refrigerant oil and refrigerant charging amount
after prolonging connection pipe
After the length of connection pipe is prolonged for 10m at the basis of standard
length, you should add 5ml of refrigerant oil for each additional 5m of connection
pipe.

The calculation method of additional refrigerant charging amount (on the basis
of liquid pipe):

(2)

(1) Additional refrigerant charging amount= prolonged length of liquid pipe × additional

refrigerant charging amount per meter

capacity capacity

5000Btu/h

(1465W)

24000Btu/h

(7032W)

7000Btu/h

(2051W)

28000Btu/h

(8204W)

9000Btu/h

(2637W)

36000Btu/h

(10548W)

12000Btu/h

(3516W)

42000Btu/h

(12306W)

18000Btu/h

(5274W)

48000Btu/h

(14064W)

Max length of

connection pipe

Max length of

connection pipe

15 25

15 30

15 30

20 30

25 30

2. Min length of connection pipe
For the unit with standard connection pipe of 5m, there is no limitation for the
min length of connection pipe. For the unit with standard connection pipe of

7.5m and 8m, the min length of connection pipe is 3m.

Sheet 1 Max length of connection pipe Unit: m

3. Max length of connection pipe

Configuration of connection pipe

Basing on the length of standard pipe, add refrigerant according to the

requirement as shown in the table. The additional refrigerant charging amount

per meter is different according to the diameter of liquid pipe. See Sheet 2.

39

Sheet 2. Additional refrigerant charging amount for R32

Note: The additional refrigerant charging amount in Sheet 2 is recommended

value, not compulsory.

Diameter of connection pipe mm

Liquid pipe Gas pipe

Ф6

Ф6 or Ф9.5

Ф9.5 or Ф12

Ф12

Ф16

Ф19

Ф22.2

Ф16 or Ф19

Ф19 or Ф22.2

Ф25.4 or Ф31.8

_

_

Cooling only,

cooling and heating

(g / m) (g / m)

Cooling only

(g / m)

cooling and

heating

16

40

80

136

200 200

280280

48

24

12

12

200

280

96

96

40

16

Indoor unit throttle Outdoor unit throttle

Configuration of connection pipe

40

Φ6 - 6.35(1/4")

Φ9.52(3/8")

Φ12-12.7(1/2")

Φ15.8-16(5/8")

1.3 0.7

1.6 1.0

1.8 1.0

2.4 2.2

Pipe expanding method

Note:

Improper pipe expanding is the main cause of refrigerant leakage. Please expand
the pipe according to the following steps:

A: Cut the pipe

the distance of indoor unit and
outdoor unit.

● Cut the required pipe with pipe cutter.

pipe

pipe cutter

leaning uneven burr

B: Remove the burrs

● Remove the burrs with shaper and

prevent the burrs from getting into
the pipe.

downwards

pipe

shaper

C: Put on suitable insulating pipe
D: Put on the union nut

● Remove the union nut on the indoor

connection pipe and outdoor valve;
install the union nut on the pipe.

union pipe

pipe

E: Expand the port

● Expand the port with expander.

Note:

● "A" is different according to the
diameter, please refer to the sheet
below:

expander

hard
mold

pipe

F: Inspection

● Check the quality of expanding port.
If there is any blemish, expand the
port again according to the steps
above.

the length is equal

improper expanding

leaning

damaged

surface

crack uneven

thickness

smooth surface

Outer diameter

(mm)

A(mm)

Max Min