AUX ANB66FVAMT - Page 101

AUX-DC inverter ARV outdoor unit individual series technical manual
98
Note:
Equivalent length refers to conversion length of parts such as elbow after considering pressure loss.
Equivalent length: actual length of pipe + quantity of elbow ×equivalent length of each elbow + quantity of
oil trap ×equivalent length of each oil trap
Elbow and oil trap recommend dimension list
Type
Diameter of pipe(mm)
90° elbow(m)
Oil trap(m)
9.52
0.18
1.3
12.7
0.20
1.5
15.88
0.25
2.0
19.05
0.35
2.4
22.2
0.40
3.0
25.4
0.45
3.4
28.6
0.50
3.7
31.8
0.55
4.0
34.93
0.58
4.2
41.3
0.63
4.6
44.5
0.66
5.0
Example:
When actual length of 32HP outdoor unit is 80m, diameter of pipe is 34.93mm and 12 elbows & 2 oil traps
are used, the equivalent length should be calculated:
80+0.58×12+4.2×2=95.36m
Note:
If there is relatively level difference of indoor and outdoor unit, S-shaped oil trap must be installed every
8~10m for vertical pipe.