8
9
9.2
[Fig. 9.2.3]
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If there is no trap, oil can accumulate inside the pipe, causing a shortage of oil damaging the compressor.
IRU34+<3ā76/08$<6/08$
2m[6ft]
D
A
D
A
B
C
%! ([DPSOHRISLSLQJFRQQHFWL<3ā76/08$<6/08$
A
: Indoor unit
B
7UDSJDVSLSHRQO\
C
: Within 2 m [6ft]
D
: Twinning pipe
E
: Field-supplied piping
F
: Twinning kit
G
: Straight pipe length that is 500mm [19-11/16 in] or more
G
F
E
E
[Fig. 9.2.4]
<A> Install the piping so that oil will not accumulate in the stopped heat source unit. (both the liquid and the gas side for PQHY-P·TSLMU-A/YSLMU-A,
WKHKLJKSUHVVXUHVLGHRQO\IRU345<3ā76/08$<6/08$
1.
A
C
D
unit 1
unit 2
C
D
B
unit 1
unit 2
The NG example shows that oil accumulates because the units are installed on a reverse gradient while unit 1 is in operation, and unit 2 is stopped.
2.
unit 1
unit 2
unit 1
unit 2
h1
K PLQPD[
unit 1
unit 2
h1
K!PLQ
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Summary of Contents for CITY MULTI PQHY-P-TLMU-A
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