Service manual
16-32
APPENDIX A
SM DLF 1-A.1 GB
SAFETY PRECAUTIONS
Read the following "SAFETY 
PRECAUTIONS" carefully before installation. 
Electrical work must be installed by a 
licensed electrician. Be sure to use the 
correct rating of the power plug and main 
circuit for the model to be installed. 
The caution items stated here must be 
followed because these important contents 
are related to safety. The meaning of each 
indication used is as below. 
  Incorrect installation due to ignoring of the 
instruction will cause harm or damage, and the 
seriousness is classified by the following 
indications. 
Carry out test running to confirm that no 
abnormality occurs after the installation. Then, 
explain to user the operation, care and 
maintenance as stated in instructions. Please 
remind the customer to keep the operating 
instructions for future reference. 
The items to be followed are classified by the symbols: 
WARNING 
This indication shows the possibility of 
causing death or serious injury. 
  Symbol with background white 
denotes item that is PROHIBITED 
from doing. 
 WARNING
1.  Use qualified installer and follow careful 
this instructions, otherwise it will cause 
electrical shock, water leakage, or 
aesthetic problem. 
2.  Install at a strong and firm location, 
which is able to withstand the set's 
weight. If the strength is not enough or 
installation is not properly done, the set 
will drop and cause injury. 
3.  For electrical work, follow the local 
national wiring standard, regulation and 
this installation instruction. An 
independent circuit and single outlet 
must be used. If electrical circuit 
capacity is not enough it will cause 
electrical shock or fire. 
4.  Use the specified cable and connect 
tightly for indoor/outdoor connection. 
Connect tightly and clamp the cable so 
that no external force will be acted on 
the terminal. If connection or fixing is 
not perfect, it will cause heat-up or fire 
at the connection. 
5.  Wire routing must be properly arranged 
so that control board cover is fixed 
properly. If control board cover is not 
fixed perfectly, it will cause heat-up at 
connection point of terminal, fire or 
electrical shock. 
6. Before obtaining access to terminals, 
all supply circuits must be 
disconnected. 
  7.    When carrying out piping connection, take 
care not to let air substances other than 
the specified refrigerant go into 
refrigeration cycle, otherwise, it will cause 
lower capacity, abnormal high pressure in 
the refrigeration cycle, explosion 
and injury. 
8.    Do not damage or use unspecified 
power supply cord. Otherwise, it 
will cause fire or electrical shock. 
9.    Do not modify the length of the 
power supply cord or use of the extension 
cord, and do not share the single outlet 
with other electrical appliances. 
Otherwise, it will cause fire or electrical 
shock.
10. This equipment must be earthed. It may 
cause electrical shock if 
grounding is not perfect. 
11. Do not install the unit at place where 
leakage of flammable gas may occur. 
Incase of gas leaks and accumulates at 
surrounding of the unit, it may cause fire. 
12. Carry out drainage piping as mentioned in 
installation instructions. If drainage is not 
perfect, water may enter the room and 
damage the furniture. 
13. If supply cord is damaged, it must be 
replaced by the manufacturer, its service 
agent or similarly qualified persons in 
order to avoid a hazard. 
CONTENT










