19
Installation procedure
The pipe "a, b, c, d, e, f" should be confirmed as to the below table.
Note: When the single pipe length is over 90m, the above pipe should be enlarged as the former
information.
Oil equalization pipe connection
Oil equalization pipe Ø9.52mm
Oil equalization pipe Ø9.52mm
18~32HP
34~48HP
T-shape 3-way pipe
Unit pipe spec and connection method (unit: mm)
A. Outdoor unit
Model
Suction gas pipe side
Liquid pipe side
Diameter (mm) Connecting method Diameter (mm) Connecting method
Flared
YCV280HR
Ø22.22
Braze
Ø9.52
YCV335HR
Ø25.4
Ø12.7
YCV400HR
Ø25.4
Ø12.7
YCV450HR
Ø28.58
Ø12.7
Model
HP gas pipe side
Oil pipe side
Diameter (mm) Connecting method Diameter (mm) Connecting method
Flared
Flared
YCV280HR
Ø19.05
Ø9.52
YCV335HR
Ø22.22
Braze
Ø9.52
YCV400HR
Ø22.22
Ø9.52
YCV450HR
Ø22.22
Ø9.52
Total outdoor capacity before
the gather pipe (kW)
Suction gas pipe (c,f)
(mm)
HP gas pipe (b,e)
(mm)
Liquid pipe (a,d)
(mm)
X ≤ 68
Ø28.58
Ø28.58
Ø15.88
68 < X < 96
Ø31.8
Ø28.58
Ø19.05
96 ≤ X ≤ 101
Ø34.9
Ø28.58
Ø19.05
X > 101
Ø38.1
Ø31.8
Ø19.05
