Carrier 40GJB Owner's Manual page 26

Configuration of connection pipe
Additional refrigerant charging amount for R410A
Liquid pipe(in/mm)
1/4 in (6 mm)
1/4 in (6 mm)
3/8 in (9.52 mm)
1/2 in (12 mm)
5/8 in (16 mm)
3/4 in (19 mm)
7/8 in (22.2 mm)
Gas pipe(in/mm) Cooling only(oz/ft (g/m)) Cooling and heating(oz/ft (g/m))
3/8 in (9.52 mm)
0.2 oz/ft (15 g/m)
1/2 in (12 mm)
5/8 in (16 mm)
0.2 oz/ft (15 g/m)
3/4 in (19 mm)
3/4 in (19 mm)
0.3 oz/ft (30 g/m)
7/8 in (22.2 mm)
1 in (25.4 mm)
0.6 oz/ft (60 g/m)
1 1/4 in (31.8mm)
_ 2.7 oz/ft (250 g/m)
_ 3.8 oz/ft (350 g/m)
25
Outdoor unit throttle
0.2 oz/ft (20 g/m)
0.5 oz/ft (50 g/m)
1.3 oz/ft (120 g/m)
1.3 oz/ft (120 g/m)
2.7 oz/ft (250 g/m)
3.8 oz/ft (350 g/m)