Step 3.4 Adding Refrigerant - Samsung MV Series User & Installation Manual

5. Set a valve cork of liquid and gas service
port to the open position.

Step 3.4 Adding refrigerant

If you use a pipe longer than the length specified in
the piping codes and standards, you must add 15g of
refrigerant R-410A for each extra metre. If you use a pipe
shorter than the length specified in the piping codes and
standards, the evacuating time is normal. Refer to the
Service Manual for further details.
CAUTION
• The remaining air in the Refrigeration cycle, which
contains moisture, may cause malfunction of the
compressor.
• Always contact the service centre or a professional
installation agency for product installation.
R-410A is a mixed type of refrigerant. It is necessary for
recharging under conditions of liquid. When recharging
refrigerant from the refrigerant cylinder to the equipment,
take the following instructions:
Before recharging, check whether the cylinder has
a siphon or not. There are two ways to recharge the
refrigerant:
Siphon
Charge the refrigerant
standing the cylinder upright.
<Cylinder with siphon>
NOTE
• If R-410A refrigerant is charged with gas, the
composition of the charged refrigerant changes and
the characteristics of the equipment vary.
• During the measuring operation of refrigerant quantity
added, use electronic scales. If cylinder doesn't have
siphon, upset it.
Charge the refrigerant turning
the cylinder upside down.
<Cylinder without siphon>
English 47