Daikin VRV 5 BS4A14AJV1B, Руководство пользователя

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15 | Piping installation
Installer and user reference guide
75
BS4~12A14AJV1B
VRV 5 branch selector unit
4P695527-1 – 2022.02
Outer diameter (Ø) Temper grade Thickness (t)FN
6.4 mm (1/4")
9.5 mm (3/8")
12.7 mm (1/2")
Annealed (O) ≥0.80 mm
t
Ø
15.9 mm (5/8") Annealed (O) ≥0.99 mm
19.1 mm (3/4")
22.2 mm (7/8")
Half hard (1/2H) ≥0.80 mm
28.6 mm (1 1/8") Half hard (1/2H) ≥0.99 mm
15.2.3 Refrigerant piping insulation
▪ Use polyethylene foam as insulation material:
- with a heat transfer rate between 0.041 and 0.052 W/mK (0.035 and
0.045 kcal/mh°C)
- with a heat resistance of at least 120°C
▪ Insulation thickness
Ambient temperature Humidity Minimum thickness
≤30°C 75% to 80% RH 15 mm
>30°C ≥80% RH 20 mm
15.3 Connecting the refrigerant piping
15.3.1 To connect the refrigerant piping
e
e
b
a
d
c
g
h
e
f f
f f
f f
f
a BS unit
b Liquid pipe (field supply)
c HP/LP gas pipe (field supply)
d Suction gas pipe (field supply)
e Reducing joints and insulation tubes (accessory)
f Indoor unit connection set
g Liquid pipe (field supply)
h Gas pipe (field supply)