Charging Additional Refrigerant - Samsung AM MXVAFC Series Installation Manual

Charging additional refrigerant

f R-410A refrigerant is blended refrigerant . Add refrigerant in liquid form only . (Make sure to use the refrigerant bomb in f
upright position)
f Measure the quantity of the refrigerant according to the length of the liquid side pipe . Add fixed quantity of the f
refrigerant using a scale .
Single installation
f Open the manifold gauge valve connected to the liquid side service valve and add the liquid refrigerant .
f
f If you cannot add the whole quantity of the refrigerant while the outdoor unit is stopped, open the gas side and liquid f
side service valve . Then, add remaining refrigerant by pressing the refrigerant adding button of the outdoor PCB .
R-410A (Inject
liquid refrigerant)
Scale
Module installation
f Open the manifold gauge valve connected to the liquid side service valve and add the liquid refrigerant . f
f If you cannot add the whole quantity of the refrigerant while the outdoor unit is stopped, open the gas side and liquid f
side service valve . Then, add remaining refrigerant by pressing the refrigerant adding button of the outdoor PCB .
f If you use the refrigerant charging function from the PCB, outdoor unit will operate and charge the refrigerant . At this
f
time, you must use gas side manifold gauge for cooling operation .
R-410A (Inject
liquid refrigerant)
Scale
Outdoor unit
Gas side
Manifold gage
Vacuum port
Outdoor unit
Manifold gage
Liquid side
Gas
side
Liquid side pipe
Vacuum port
Liquid side
Service valve
Outdoor unit
Service valve
77