Samsung AC BNPDBC Series User & Installation Manual page 51

How to add refrigerant
R-410 is a mixed type of refrigerant. It is required for recharging under condition of liquid with the cylinder
upright.
Measure the quantity of refrigerant depending on the length of the liquid side pipe. Then, add fixed quantity
of refrigerant by using a scale.
• When the pipe length exceeds the standard length of 5 m, charge refrigerant according to the increased
length. Measure the quantity of refrigerant depending on the length of the liquid side pipe. Then, add
fixed quantity of refrigerant by using a scale.
R-410A
(Liquid
refrigerant
charging)
Scale
CAUTION
• After charging, open completely the both gas and liquid side valves. (If you operate the air conditioner
with the service valves closed, the main parts of the outdoor unit may be damaged.)
• When charging refrigerant, wear protective gear.
• Do not charge refrigerant while operating the indoor unit.
• Be careful with the upper fan on the outdoor unit when operating the air conditioner with the front
cabinet panel detached.
• Do not heat the refrigerant container with an extra heat source to charge refrigerant faster when the
outdoor temperature is lower. This may result in an explosion or fire.
• Take care when connecting the manifold gauge to the refrigerant charging port for heating, the
refrigerant may leak.
• After charging, close the valve of the refrigerant container quickly. The overall amount of refrigerant
may be changed.
Outdoor unit
Gas
Liquid
side side
Manifold
gauge
Vacuum pump
Service valve
English 51