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Installation
※ In case you want more information about the controllers and accessories, please refer to the Controller and
Accessory TDB on pvi.Samsung.com site or Global Partner Portal site.
CAUTION
•
Be sure to use C1220T-1/2H (Semi-hard) pipe for more
than Ø19.05 mm. If you use C1220T-O (Soft) pipe for
Ø19.05 mm, the pipe may be broken, which can result
in an injury.
Make at least one round:
It will reduce noise and vibration
•
The appearance of the unit may be different from the
diagram depending on the model.
CAUTION
•
After connecting the pipes with knock-out treatment,
plug the space around the pipes.
•
After connecting the pipes, proceed exactly as
directed in the guide to prevent interference with the
internal parts.
•
Tighten the nuts to the specified torques. If
overtightened, the nuts could be broken so
refrigerant may leak.
•
Protect or enclose refrigerant tubing to avoid
mechanical damage.
Adding refrigerant (R-32)
Precautions on adding the R-32 refrigerant
In addition to the conventional charging procedure, the
following requirements shall be kept.
•
Make sure that contamination by other refrigerants
does not occur for charging.
•
To minimize the amount of refrigerant, keep the
hoses and lines as short as possible.
•
The cylinders shall be kept upright.
•
Make sure that the refrigeration system is earthed
before charging.
•
Label the system after charging, if necessary.
•
Extreme care is required not to overcharge the
system.
•
Before recharging, the pressure shall be checked with
nitrogen blowing.
•
After charging, check for leakage before
commissioning.
•
Be sure to check for leakage before leaving the work
area.
•
The outdoor unit is loaded with sufficient refrigerant
for the standard piping. Thus, refrigerant must be
added if the piping is lengthened. This operation
can only be performed by a qualified refrigeration
specialist. To determine the quantity of refrigerant
charge, see
Calculating the quantity of refrigerant to
1
Check if the stop valve is closed completely.
2
Charge the refrigerant through the service port of the
liquid stop valve.
3
If you have any difficulty charging the refrigerant
as described in the steps above, take the following
steps:
a
Open the liquid stop valve and gas stop valve.
b
Operate the air conditioner by pressing the K2 key
on the outdoor unit PCB.
c
After about 30 minutes, charge the refrigerant
through the service port of the gas stop valve.
Gas side stop valve
(service port))
Liquid side stop valve
(service port)
Vacuum
Pump
Ref
Balance
Indoor Unit
