Step 10 Adding Refrigerant (R-410A) - Samsung AR36BSHUMGMX Installation Manual

Step 10 Adding refrigerant (R-410A)

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 add on page 19.
1 Check if the stop valve is closed completely.
2 Charge the refrigerant through the service port of the
liquid stop valve.
NOTE
• Do not charge the refrigerant through the service port
of the gas 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
button on the outdoor unit PCB.
c After about 30 minutes, charge the refrigerant
through the service port of the gas stop valve.
Indoor Unit
DB68-11579A-00_IM_RAC oudoor_AA_EN_.indd 19 DB68-11579A-00_IM_RAC oudoor_AA_EN_.indd 19
Liquid side stop valve(service port)
Gas side stop valve(service port)
Balance
Outdoor Unit
Ref
Vacuum
pump
Calculating the quantity of refrigerant to add
The quantity of additional refrigerant is variable according
to the installation situation. Thus, make sure the outdoor
unit situation before adding refrigerant. This operation
can only be performed by a qualified refrigeration
specialist.
Model
0~24.6(0~7.5)
AR36BSHUMGMX 0
Charging the system with liquid refrigerant
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, follow the instructions below.
• Before recharging, check whether the cylinder has
a siphon or not. There are two ways to recharge the
refrigerant.
Cylinder with siphon
siphon
Charge the refrigerant standing
the cylinder upright.
NOTE
• If R-410A refrigerant is charged with gas, the
composition of the charged refrigerant changes and
the characteristics of the equipment vary.
• While adding refrigerant use an electronic scale to
measure the volume added. If the refrigerant cylinder
doesn't have a siphon, turn it upside-down.
• The designs and shape are subject to change
according to the model.
Inter-connection
pipe length [ft(m)]
24.6~246.1(7.5~75)
0.323 oz/ft over 24.6ft
(+30g/m over 7.5 m)
Cylinder without siphon
Charge the refrigerant turning
the cylinder upside down.
19
English
2022-01-12 오후 1:37:52 2022-01-12 오후 1:37:52