Rotenso J100Wi, Service Manual

Page: 70 / 132

LCAC R32 Series
70 Service manual
5.3 FOR UNITS WITH TWINS FUNCTION
5.3.1 Length and drop height permitted of the refrigerant piping
NOTE:
Reduced length of the branching tube is the 0.5m of the equivalent length of the pipe.
NOTE:
All used branch pipe must be produced by Rotenso, otherwise it causes malfunction. The indoor units
should be installed equivalently at the both side of the U type branch pipe.
Permitted Value Piping
Pipe
Length
Total pipe length (Actual)
18K+18K 30m
L+L1+L2 24K+24K 50m
30K+30K 50m
Max. branch pipe length - 15m L1, L2
Max. branch pipe length difference - 10m L1-L2
Drop
Height
Max. height difference between indoor unit and outdoor unit - 20m H1
Max. height difference between indoor units - 0.5m H2
5.3.2 Size of joint pipes for indoor unit (R32)
Capacity of indoor unit
(A)
Size of main pipe (mm)
Gas side Liquid side Available branching pipe
18K Ø12.7 Ø6.35 CE-FQZHN-01C
24K Ø15.9 Ø9.5 CE-FQZHN-01C
30K Ø15.9 Ø9.5 CE-FQZHN-01C
PART 4. INSTALLATION