SYSVRF2 INDOOR UNIT OM
1
1. IMPORTANT SAFETY INFORMATION
WARNING
CAUTION
CONTENTS PAGE
IMPORTANT SAFETY INFORMATION..........................................................1 
PART NAMES.................................................................................................3
AIR CONDITIONER OPERATIONS AND PERFORMANCE..........................5
ADJUSTING AIR FLOW DIRECTION.............................................................6
MAINTENANCE...............................................................................................9
SYMPTOMS THAT ARE NOT FAULTS.........................................................12
TROUBLESHOOTING...................................................................................12 
WARNING
1.1 Types of precautions
To gain full advantage of the unit’s functions and to avoid malfunc-
tions due to mishandling, we recommend that you read this instruc-
tion manual carefully before use.
The precautions described herein are classified as WARNING and 
CAUTION. They both contain important information regarding 
safety. Ensure that you follow them carefully.
Failure to follow these instructions may result in injury, 
even loss of life.
1.2 General precautions
Failure to observe these instructions may result in 
serious property damage or injury.
Do not use this unit in locations where flammable gas may 
exist. If flammable gas comes into contact with the unit, a 
fire may occur, which could result in serious injury or death.
If this unit exhibits any abnormal behavior (such as emitting 
smoke) there is a danger of serious injury. Disconnect the 
power supply and contact your supplier or service engineer 
immediately.
The refrigerant in this unit is safe and should not leak if the 
system is designed and installed properly. However, if a 
large amount of refrigerant leaks into a room, the oxygen 
concentration will decrease rapidly, which can cause 
serious injury or death. The refrigerant used in this unit is 
heavier than air, so the danger is greater in basements or 
other underground spaces. In the event of a refrigerant leak, 
turn off any devices that produce a naked flame and any 
heating devices, ventilate the room, and contact your 
supplier or service engineer immediately.
If this unit is used in the same room as a cooker, stove, hob, 
or burner, ventilation for sufficient fresh air must be 
ensured, otherwise the oxygen concentration will fall, which 
may cause injury.
Do not attempt to inspect or repair this unit yourself. This 
unit should only be serviced and maintained by a 
professional air conditioning service engineer. Incorrect 
servicing or maintenance can cause electric shocks, fire or 
water leaks.
This unit should only be re-positioned or re-installed by a 
professional technician. Incorrect installation can lead to 
electric shocks, fire or water leaks. The installation and 
grounding of electrical appliances should only be carried 
out by licensed professionals. Ask your supplier or 
installation engineer for further information.
Do not allow this unit or its remote controller to come into 
contact with water, as this can lead to electric shocks or fire.
Do not use paint, varnish, hair spray, other flammable 
sprays or other liquids that may give off flammable 
fumes/vapor near this unit, as doing so can cause fires.
When replacing a fuse, ensure that the new fuse to be 
installed completely complies with requirements.
Do not touch the unit or its remote controller with wet 
hands, as doing so can lead to electric shocks.
Do not insert your fingers or other objects into the unit’s air 
inlet or air outlet to avoid injury or damage to the equip-
ment.
Do not place vases or other liquid containers on the unit or 
in places where liquid could drip onto it. Water or other 
liquids that come into contact with the unit can lead to 
electric shocks or fires.
Toxic fumes may be produced if the refrigerant in this unit 
comes into contact with naked flames (such as from a 
heater, gas stove/burners, or electric appliances).
Dispose of this unit’s packaging carefully, so children 
cannot play with it. Packaging, especially plastic packaging, 
can be dangerous, can cause serious injury or death. 
Screws, staples and other metal packaging components 
can be sharp and should be disposed of carefully to avoid 
injury.
Do not open or remove the unit's panel when the unit is 
powered on. Touching the unit's internal components while 
the unit is powered on can lead to electric shocks or injuries 
caused by moving parts such as the unit's fan.
Do  not  remove  the  remote  controller’s  front  or  back 
overs  and  do  not  touch  the  remote  controller’s  internal 
components,  as  doing  so  can  cause  injury.  If  the  remote 
controller  stops  working,  contact  your  supplier  or  service 
engineer.
Do  not  spray  any  liquids  onto  the  unit  or  allow  any 
liquids to drip onto the unit. 
Do  not  allow  children  to  play  near  this  unit,  as  doing  so 
risks injury.
Ensure  that the  power  supply  is  disconnected  before  any 
servicing or maintenance is carried out.










