Daikin VRV Aurora RELQ-TATJU Series Engineering Data page 8

REFNET Pipe System
4.1.2 Equivalent Piping Length of Joints and Headers (Reference)
Pipe Size *
L Joints
REFNET Joint
REFNET Header
Single Branch Selector
Unit
Multi Branch Selector Unit
* When the equivalent piping length in cooling operation is calculated, the gas pipe size is selected.
When the equivalent piping length in heating operation is calculated, the liquid pipe size is selected.
6
φ 1/4 in. φ 3/8 in. φ 1/2 in. φ 5/8 in.
(φ 6.4 mm) (φ 9.5 mm) (φ 12.7 mm) (φ 15.9 mm)
6-1/4 in. 7-1/8 in. 7-7/8 in. 9-7/8 in.
(0.16 m) (0.18 m) (0.20 m) (0.25 m)
φ 3/4 in. φ 7/8 in. φ 1 in. φ 1-1/8 in.
(φ 19.1 mm) (φ 22.2 mm) (φ 25.4 mm) (φ 28.6 mm)
13-3/4 in. 15-3/4 in. 17-3/4 in. 19-5/8 in.
(0.35 m) (0.40 m) (0.45 m) (0.50 m)
1.6 ft. (0.5 m)
3.3 ft. (1 m)
BSQ36/60TVJ: 13 ft. (4 m)
BSQ96TVJ: 19 ft. (6 m)
BS4/6Q54TVJ: 19 ft. (6 m)
BS8 to 12Q54TVJ: 33 ft. (10 m)
EDUS371705A-N
φ 1-1/4 in. φ 1-3/8 in. φ 1-1/2 in. φ 1-5/8 in.
(φ 31.8 mm) (φ 34.9 mm) (φ 38.1 mm) (φ 41.3 mm)
21-5/8 in. 23-5/8 in. 25-5/8 in. 29-1/2 in.
(0.55 m) (0.60 m) (0.65 m) (0.75 m)
Installation of Outdoor Units