To Connect The Drain Hose To The Drain; Piping Installation; Preparing Refrigerant Piping; Refrigerant Piping Requirements - Daikin Altherma 3 R F Installation Manual

NOTICE
Do NOT tilt the unit forwards:
0°
4.3.2

To connect the drain hose to the drain

Water coming from the pressure relief valve is collected in the drain
pan. The drain pan is connected to a drain hose inside the unit. You
must connect the drain hose to an appropriate drain according to the
applicable legislation. You can route the drain hose through the left
or right side panel.
Prerequisite: The user interface panel and front panel have been
removed.
1 Remove one of the side panels.
2 Cut out the rubber grommet.
3 Pull the drain hose through the hole.
4 Reattach the side panel. Ensure the water can flow through the
drain tube.
It is recommended to use a tundish to collect the water.
Option 1: Through the left side panel
3×
T25
1
EBVH/X11+16S18+23DJ
Daikin Altherma 3 R F
4P643599-1B – 2021.10
≤1°
Option 2: Through the right side panel
1° 1°
5
5.1
5.1.1
Also see
additional requirements.
▪ Piping length: See
indoor
▪ Piping material: Phosphoric acid deoxidised seamless copper.
▪ Piping connections: Only flare and brazed connections are
allowed. The indoor and outdoor units have flare connections.
Connect both ends without brazing. If brazing should be needed,
take the guidelines in the installer reference guide into account.
▪ Flare connections: Only use annealed material.
▪ Piping diameter:
Liquid piping
Gas piping
▪ Piping temper grade and thickness:
Outer diameter
9.5 mm (3/8")
15.9 mm (5/8")
5.1.2
▪ Use polyethylene foam as insulation material:
▪ with a heat transfer rate between 0.041 and 0.052 W/mK (0.035
▪ with a heat resistance of at least 120°C
▪ Insulation thickness
Pipe outer diameter
9.5 mm (3/8")
15.9 mm (5/8")
1
3×
T25

Piping installation

Preparing refrigerant piping

Refrigerant piping requirements

"4.1.2 Special requirements for R32
"4.1.1 Installation site requirements of the
unit" [ 4 7].
Ø9.5 mm (3/8")
Ø15.9 mm (5/8")
Temper grade
(Ø)
Annealed (O)
Annealed (O)
(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.

Refrigerant piping insulation

and 0.045 kcal/mh°C)
Insulation inner
(Ø ) diameter (Ø
p
12~15 mm
17~20 mm
5 Piping installation
units" [ 4 7] for
(a)
Thickness (t)
Ø
≥0.8 mm
t
≥1.0 mm
Insulation thickness
) (t)
i
≥13 mm
≥13 mm
Installation manual
15