Daikin WGZ030DW Installation And Maintenance Manual page 11

Recommended Line Sizing for Field Piping
Final design should be based on ASHRAE design standards.
Table 1: Equivalent Feet for Fittings
Fitting Type 7/8"
2.0
90º Standard
90º Long Radius 1.4
3.2
90º Street
45º Standard 0.9
45º Street 1.5
180º Bend 3.2
1.4
Full Size
2.0
Reducing
Globe Valve, Open 22.0
Gate Valve, Open 0.9
Angle Valve, Open 9.0
Table 2: Maximum Line Size for Oil Carry Up a Discharge Riser, R-410A
Unit Size WGZ030 WGZ035
Line Size (in.) 1 3/8 1 3/8
Unit Size WGZ100 WGZ115
Line Size (in.) 2 1/8 2 5/8
Table 3: Recommended Liquid Line Size, R-410A
Conn. Size
Unit Model
at Unit
50 Equiv. Ft
WGZ030 7/8"
WGZ035 7/8"
WGZ040 7/8"
WGZ045 7/8"
WGZ050 7/8"
WGZ055 7/8"
WGZ060 7/8"
WGZ070 1 1/8"
WGZ080 1 1/8" 1 1/8 "
WGZ090 1 1/8" 1 1/8 "
WGZ100 1 1/8" 1 1/8 "
WGZ115 1 1/8" 1 1/8 "
WGZ130 1 1/8" 1 1/8 "
WGZ150 1 3/8"
WGZ170 1 3/8"
WGZ-200 1 3/8"
IM 1131-2
1 1/8" 1 3/8" 1 5/8" 2 1/8"
Elbows
2.6 3.3 4.0 5.0
1.7 2.3 2.6 3.3
4.1 5.6 6.3 8.2
1.3 1.7 2.1 2.6
2.1 3.0 3.4 4.5
4.1 5.6 6.3 8.2
Tees
1.7 2.3 2.6 3.3
2.6 3.3 4.0 5.0
Valves
29.0 38.0 43.0 55.0
1.0 1.5 1.8 2.3
12.0 15.0 18.0 24.0
WGZ040 WGZ045 WGZ050
1 5/8 1 5/8 1 5/8
WGZ130 WGZ150 WGZ170
2 5/8 2 1/8 2 5/8
Recom m ended Liquid Line Size (in.)
Up to Up to
75 Equiv. Ft 100 Equiv. Ft
7/8 " 7/8 "
7/8 " 7/8 "
7/8 " 7/8 "
7/8 " 7/8 "
7/8 " 7/8 "
7/8 " 7/8 "
7/8 " 7/8 "
1 1/8" 1 1/8 "
1 1/8 "
1 1/8 "
1 1/8 "
1 1/8 "
1 3/8"
1 3/8" 1 1/8 "
1 3/8" 1 1/8 "
1 3/8" 1 1/8 "
2 5/8" 3 1/8"
6.0 7.5
4.1 5.0
10.0 12.0
3.2 4.0
5.2 6.4
10.0 12.0
4.1 5.0
6.0 7.5
69.0 84.0
2.8 3.2
29.0 35.0
WGZ055 WGZ060 WGZ070 WGZ080
1 5/8 1 5/8 1 5/8 2 1/8
WGZ200
2 5/8
Up to Up to
125 Equiv. Ft 150 Equiv. Ft
7/8 " 7/8 "
7/8 " 7/8 "
7/8 " 1 1/8 "
7/8 " 1 1/8 "
7/8 " 1 1/8 "
1 1/8" 1 1/8 "
1 1/8 " 1 1/8 "
1 1/8 " 1 1/8 "
1 1/8" 1 1/8"
1 1/8" 1 1/8"
1 1/8" 1 1/8"
1 1/8" 1 3/8"
1 1/8" 1 3/8"
1 3/8" 1 3/8"
1 3/8" 1 3/8"
1 3/8" 1 3/8"
Refrigerant Piping
WGZ090
2 1/8
Up to
7/8 "
1 1/8 "
1 1/8 "
1 1/8 "
1 1/8 "
1 1/8 "
1 1/8 "
1 1/8"
1 1/8"
1 1/8"
1 1/8"
1 3/8"
1 3/8"
1 3/8"
1 3/8"
1 3/8"
11