Daikin RZAG71N V1B Series User Manual

6 | Preparation
Installer reference guide
30
RZAG71~140N
Sky Air Alpha-series
4P695307-1A – 2024.02
Refrigerant branch kit One or more refrigerant branch kits are required. See
"5.3.1Possible options for the outdoor unit"[425].
Upward and downward
piping
Perform upward and downward piping only on the
main piping line (L1).
Branch pipes ▪ Install the branch pipes horizontally (with a
maximum inclination of 15°) or vertically.
▪ Make the length of the branch pipes to the indoor
units as short as possible.
▪ Try to keep length of the branch pipes to the indoor
units equal.
Definitions: L1~L7, H1, H2
Pair
(a)
H1
L1
Twin
(a)
H1
H2
L1
L2
L3
Triple
(a)
L2
L3
L4
H1
H2
L1
Double twin
(a)
H1
H2
L1
L2
L3
L4
L5
L6
L7
(a) Assume that the longest line in the illustration corresponds with the actual longest
pipe, and the highest unit in the illustration corresponds with the actual highest
unit.
L1 Main piping
L2~L7 Branch piping
H1 Height difference between the highest indoor unit and the outdoor unit
H2 Height difference between the highest and the lowest indoor unit
Refrigerant branch kit
Refrigerant piping material
▪ Piping material: phosphoric acid deoxidised seamless copper
▪ Flare connections: Only use annealed material.
▪ Piping temper grade and thickness:
Outer diameter (Ø) Temper grade Thickness (t)
(a)
6.4mm (1/4")
9.5mm (3/8")
12.7mm (1/2")
Annealed (O) ≥0.8mm
t
Ø
15.9mm (5/8") Annealed (O) ≥1.0mm
19.1mm (3/4") Half hard (1/2H)
(a)
Depending on the applicable legislation and the maximum working pressure of the unit
(see "PS High" on the unit name plate), larger piping thickness might be required.

Daikin RZAG71N V1B Series Specifications

General

Brand	Daikin
Model	RZAG71N V1B Series
Category	Air Conditioner
Language	English