Installing The Refrigerant Pipe Work - Samsung RD060PHXEA Installation Manual

Installing the Refrigerant Pipe Work

Install the refrigerant pipe within the maximum allowable length, difference in height and length of

after the first branch pipe.
The pressure of the R410A is high.

Use only rated refrigerant pipe and follow the installation method.
Use clean refrigerant pipe which there is no harmful ion, oxide, dust, iron content or moisture.

Use tools and accessories fit on R410A.

Manifold gauge
 Use manifold gauge only for R410A to prevent the inflow of foreign substances.
 Use vacuum pump with check valve to prevent pump oil from flowing backward while
Vacuum pump
 Use the vacuum pump that the vacuum induction is available up to 5Torr
Flare nut  Use only flare nut supplied with the product.
Allowable Length of the Refrigerant Pipe and the Installation Examples
   U sing only Y-joint
Outdoor unit
Maximum
Outdoor unit ~
allowable
Indoor units
length of pipe
Outdoor unit ~
Indoor units
Maximum
allowable
Indoor unit ~
height
Indoor unit
Maximum
First Y-joint ~
allowable
Last indoor unit
length of pipe
Additional refrigerant
calculation
 Contact the manufacturer if the length should exceed.
16
E-
the vacuum pump is stopped.
(666.6Pa , 0.0067 kgf/cm², 5 mmHg)
Item
Longest Less than
piping length 70m
Equivalent Less than
length 85m
Less than
Total length
200m
Less than 30m
Height
difference Less than
between 15m
indoor units
Actual piping Less than
length 40m
R=Basic charge + additional charge by the piping length
Basic charge : Up to 10m when installing A2W only = 3300g
When installing A2W and A2A together, add basic additional refrigerant (700g)=4000g
   U sing EEV kit
Outdoor unit
Example
a+b+c+d+j ≤ 70m
Y-joint and EEV kit : 0.5m
a+b+c+d+e+f+g+h+i+j ≤ 200m
H1
H2
b+c+d+h ≤ 40m (between first Y-joint and indoor unit)
h≤20m(between EEV kit and indoor unit)
Indoor unit
Y-Joint
EEV kit
Hydro unit
Remarks
10m≤Total length
≤200m
If outdoor unit is
located lower
position H1 ≤ 25m