Perfect Aire 3PAMSHHQC18-MZO2, Техническое и сервисное руководство

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10. PIPING WORK AND REFRIGERANT CHARGE
10. Piping work and refrigerant charge
10.1 MAX.length allowed
18K 24K 36K 42K
Piping to each indoor unit
(A/B/C/D/E)
ft./m
≤
82
(
25
) ≤
65
.
6
(
20)
≤
65
.
6
(
20)
≤
65
.
6
(
20)
Total length of piping between all
units
ft./m
A+B≤
164
(
50
)
A+B+C≤
197
(
60
)
A+B+C+D≤
246
(
75
)
A+B+C+D+E
≤
262
(
80)
Max height difference between
indoor unit and outdoor unit (F
)
ft./m
≤
49 (15)
max height difference between
indoor units (G
)
ft./m
≤
25
(
7.5)
Model
Item
Outdoor unit
Indoor unit
Pipe length E
B
C
D
E
A
Pipe length A
Height dif
ference F
Height
dif
ference G
1) To avoid storing too much oil in the oil trap, the oil trap should be as short as possible.
2) The horizontal piping should slope down along the refrigerant flow direction, to bring the oil
back to compressor, the slope is about 1/200 to1/250.
3) In order to ensure cooling/heating performance better, the refrigerant piping should be as short
and straight as possible.
1 0 .2 Oil trap
When the indoor unit is lower than outdoor unit and height difference is larger than 5m, set an
oil trap every 16.4 ft (5m) (height difference) on suction piping.
NOTE:
Oil trap
Slope: 1/200~1/250
Slope: 1/200~1/250
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