Daikin EHVH08SU23DA6V7 [81/240] Installation

Daikin EHVH08SU23DA6V7 [81/240] Installation
7 | Installation
Installer reference guide
81
ERGA04~08DAV3(A) + EHVH04+08SU18+23DA6V7
Daikin Altherma 3 R F
4P618956-1 – 2020.03
a
b
c
d
a Torque wrench
b Spanner
c Piping union
d Flare nut
Piping size (mm) Tightening torque
(N•m)
Flare dimensions
(A) (mm)
Flare shape (mm)
Ø6.4 15~17 8.7~9.1
R=
0.4~0.8
±2
45°
90°
±2
ØA
Ø15.9 62~75 19.3~19.7
7.5.4 Pipe bending guidelines
Use a pipe bender for bending. All pipe bends should be as gentle as possible
(bending radius should be 30~40 mm or larger).
7.5.5 To flare the pipe end
CAUTION
Incomplete flaring may cause refrigerant gas leakage.
Do NOT re-use flares. Use new flares to prevent refrigerant gas leakage.
Use flare nuts that are included with the unit. Using different flare nuts may
cause refrigerant gas leakage.
1 Cut the pipe end with a pipe cutter.
2 Remove burrs with the cut surface facing down so that the chips do NOT enter
the pipe.
a b
a Cut exactly at right angles.
b Remove burrs.
3 Remove the flare nut from the stop valve and put the flare nut on the pipe.
4 Flare the pipe. Set exactly at the position as shown in the following figure.
A
Flare tool for R32
(clutch type)
Conventional flare tool
Clutch type
(Ridgid-type)
Wing nut type
(Imperial-type)
A 0~0.5mm 1.0~1.5mm 1.5~2.0mm
5 Check that the flaring is properly made.

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