Lennox VEPS075N432K, User Manual

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DC Inverter Multi VRF System
9
4.2.2 Allowable Length and Height Difference of Connection Pipe
Y type branch joint is adopted to connect indoor and outdoor units. Connecting method is shown in
the figure below.
NOTE: Equivalent length of one Y-type branch is 0.5m.
Fig.5 Allowable Length and Height Difference of Connection Pipe
Piping parameters of VEPS075N432K , VEPS096N432K , VEPS120N432K :
Allowable
value
Fitting pipe
Total length (actual length) of fitting pipe 300m L1+L2+L3+a+b+c+d
Length of farthest fitting pipe (m)
Actual length 120m
L1+L2+L3+d
Equivalent length 150m
From the 1 st branch to the farthest indoor pipe 40m L2+L3+d
Height difference between ODU and
IDU
ODU at upper side 50m —
ODU at lower side 40m —
Height difference between IDUs 15m —