INVENTOR B2VI-18 User manual

Wall Mounted Unit
Owner’s Manual
Models
Thank you for choosing INVENTOR air
conditioning system. For correct use of this unit,
please read this manual carefully and keep it for
future reference.
B2VI-24/B2VO-24
B2VI-18/B2VO-18
66129912893

This symbol stands for the items
should be forbidden.
This symbol stands for the items
should be followed
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Operation and maintenance
Safety Precautions
Operation Tips ....................................................................4
Name of Parts.....................................................................6
■Operation of Remote Controller ..............................................7
Care and Cleaning
Troubleshooting
Installation service
Notices for installation
Installation Drawing
Installation of Indoor Unit
Installation of Outdoor Unit
Check after installation and test operation
Emergency Operation
Installation and Maintenance of Healthy Filter
■
Configuration of connection pipe and additional volume of refrigerant ....28
Do not dispose this product as unsorted municipal waste.
Collection of such waste separately for special treatment
is necessary.
The products in this manual may be different with the real one, according to different
models, some models have displayer and some models without displayer, the position
and shape of the displayer please refer to the real one.
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.
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CONTENTS

Please read the following notices before operation.
Warning
- 1 -
Safety Precautions
Make sure that the power
plug is inserted tightly.
Do not unplug the power plug
when the unit is operating.
Do not damage the power cord
or use unspecified power cord.
★★★
Otherwise, it may cause electric
shock or fire. Otherwise, it may cause electric
shock or fire. Otherwise, it may cause electric shock or fire.
Do not share the socket with
other electric appliances or
extend the power cord by using
other sockets.
Do not operate the air condi-
tioner with wet hands.
Do not drag the power cord to
pull out the plug.
★
Otherwise, it may cause electric
shock or fire.
★
Otherwise, it may cause electric
shock.
★
Otherwise, it may cause fire due to
overheating of power cord.
Before cleaning the air cond-
plug.
When the voltage is too low,
the compressor will vibrate fiercely,
which may damage the cooling
system.
If there's abnormal pheno-
menon(like smell of burning),
please cut off the power imm-
ediately and then contact with
Gree authorized maintenance
center.
itioner,please turn off the air con
-ditioner and unplug the power
★
Otherwise, it may cause electric
shock or injury.
★
If there's abnormal phenomenon
(like smell of burning), please cut
off the power immediately and then
contact with Gree authorized
maintenance center.
If this abnormal status is kept
★
on, air conditioner may be
damaged or even cause
electric shock or fire.

- 2 -
Safety Precautions
★
★
★
★★For safety,be sure to turn
off the circuit beaker before
★
★★
★
No earthing may cause electric
shock.
performing any maintenance
Accumulated dust may cause fire
or electric shock.
Select the most appropriate
temperature.
Keep room about
5 cooler than
outside.
It can save electric energy.
Do not keep windows and
doors open for a long time
during operation.
It will result in insufficient performance.
Do not block the air inlet or
outlet.
and cause malfunctions.
Keep combustible materials
at least 1m away from the
units.
.noisolpxeroerifesuacyamtI
It may cause falling of the unit
and injury to the person.
Install the outdoor unit firmly
enough.
Do not step on the top of the
outdoor unit or place heavy
things on it.
It may cause damage or injury.
Do ehtriaperottpmetatton
air conditioner by yourself.
Incorrect repairs may cause electric
shock or fire. Please contact the
local authorised service center.
Always ensure effective
earthing.
or cleaning or when the
product is not used for an
extended period of time.
℃
It will result in insufficient performance

- 3 -
Safety Precautions
★
★
★
★
★
★
★
★
Do not cut off or damage the power cords or
control cords. If they are damaged, please
contact the dealer or qualified service
personnel.
To change the airflow direction, adjust the vertical
and horizontal air flow direction by using the
remote controller.
Vertical Louver Horizontal Louver
Do not insert your hands or objects into
the air inlet or outlet.
It may cause an accident.
Do not expose animals or plants directly to
the air flow.
Do not expose yourself to cold air directly
for a long time.
Do not use the unit for any other purpose, such
as preserving food
or drying clothes.
Do not splash water on the air conditioner. Do not place a burner near the air conditioner.
It will cause CO toxicosis due to incomplete burning.
It may have a detrimental effect on them.
It's not good for your health.
It may cause electric shock or malfunction.

Cooling Operation
Principle:
Air conditioners absorb heat in the room and transmit it to the outdoor unit so that the
room temperature is decreased. The cooling capacity will increase or decrease according
to outdoor ambient temperature.
Freeze Protection:
If the unit is operating in COOL mode and in low ambient temperature, frost may form
on the heat exchanger. When indoor heat exchanger temperature decreases below zero,
compressor will stop operation to protect the unit.
*
*
*
*
*
Principle:
Defrosting:
Air conditioners absorb heat from outdoors and transmit it to the indoor unit, increasing
room temperature. The heating capacity will decrease at low ambient temperature.
When outdoor temperature is low but humidity is high, frost may form on the outdoor unit
during extended operation, affecting heating efficiency. The air conditioner may stop
operation during auto defrosting operation.
During auto defrosting, the fan motors of indoor unit and outdoor unit will stop.
During defrosting, the indoor indicator flashes and the outdoor unit may emit vapor.
This is not malfunction.
After defrosting is finished, the heating operation will recover automatically.
Anti-cold Air Function:
In HEAT mode, the indoor fan will not operate in order to prevent cold air blowing out
(within 2 minutes) if indoor heat exchanger doesn't reach a certain temperature under the
following three states:
1. Heating operation starts; 2. After Auto Defrosting is finished; 3.Heating at low temperature.
Rest Heat Blow
In the following situations, the indoor unit may still run for some time, to blow out the rest
heat of the indoor unit.
1. In HEAT mode, the temperature reaches the setting value, the compressor stops and the
indoor fan still run for 60s.
Heating Operation
- 4 -
Operation Tips
2. In HEAT mode, if you turn off the unit, the compressor stops and the indoor fan still run for
10s.

Tips for energy saving:
*Do not overcool or overheat.
Setting temperature at a moderate level helps energy saving.
*Cover windows with a blind or a curtain.
Blocking sunlight and air from outdoors is favorable for cooling (heating).
*Clean air filters once per two weeks.
Clogged air filters lead to inefficient operation and energy waste.
Tip for relative humidity:
Condensate is likely to form at the air outlet if cooling or drying for a long time
when the relative humidity is more than 80% ( with doors and windows open).
Maximum cooling
Maximum heating
Indoor sideDB/WB(oC) Outdoor sideDB/WB(oC)
32/23
27/---
43/26
24/18
The operating temperature range (outdoor temperature) for cooling unit is 18℃~ 43℃；
for cooling and heating unit is -7℃~43℃.
Operating Temperature Range
- 5 -
Operation Tips

Indoor unit
Outdoor unit
Remote control
Front panel
Filter
Guide louver
Wall pipe
Bind tape
Connection wire
Drainage pipe
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(1)
(2)
(3) (4)
(5) (6)
(7)
(8)
Air in
Air out
：Cool
：Dry
：Heat
：Set temp.
：Power
The icons displayed:
Air in
Air out
- 6 -
Name of Parts

Remote Controller Description
2
8
9
10
3
4
11
12
7
6
13 14
5
1
Press it to start or stop operation
ON/OFF
MODE
Press it to select operation mode
(AUTO/COOL/DRY/FAN/HEAT)
+ :Press it to increase temperature
setting
-
: Press it to decrease temperature
setting
FAN
Press it to set swing angle
TIMER ON
TIMER OFF
CLOCK
X-FAN (page 10)
TEMP (page 10)
TURBO(page 10)
SLEEP(page 10)
Press it to turn on/off the light.
LIGHT
Press it to set fan speed
Press it to set auto-on timer
Press it to set auto-off timer
Press it to set clock
1
2
3
4
5
6
7
8
9
10
11
12
13
14
- 7 -
Operation of Remote Controller

This area will show the set tempe-
rature.
DIGITAL display:
23
Press FAN button to select the
desired fan speed setting(AUTO-
Low-Med-High).Your selection will
be displayed in the LCD windows,
except the AUTO fan speed.
FAN SPEED display:
25
is displayed when pressing
the up & down swing button.
Press this button again to clear the
display.
18
Up & down swing icon:
After pressing TIMER button, ON
or OFF will blink.This area will
show the set time.
SET TIME display:
21
SLEEP icon :
is displayed by pressing
the SLEEP button. Press this
button again to clear the display.
16
n
is displayed when pressing the
ottubsihtsserP.nottubOBRUT
again to clear the display.
TURBO icon:
22
is displayed when pressing the
X-FAN button. Press this button
again to clear the display.
X-FAN icon:
24
15
16 20
23
24
22
25
17 18 19
21
MODE icon:
If MODE button is pressed,
current operation mode icon
(AUTO), ( COOL),
(DRY), (FAN) or (HEAT
is only for heat pump models) will
15
show.
LIGHT icon:
is displayed by pressing the
LIGHT button.Press LIGHT button
again to clear the display.
19
LOCK icon:
20
is displayed by pressing "+" and
"-" buttons simultaneously. Press
them again to clear the display.
- 8 -
Operation of Remote Controller
Pressing TEMP button,
(set temperature),
ambient temperature)
(outdoor ambient temperature)
and blank is displayed circularly.
(indoor
TEMP icon:
17
NOTE: “ ” function is applicable
to partial of models.