Daikin ELVZ-E9W, Руководство по установке

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5 Piping installation
Installation manual
14
EL23E
Daikin Altherma 3 R MT F
4P708476-1 – 2023.03
≤1°
NOTICE
Do NOT tilt the unit forwards:
0°
1° 1°
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
2
3
1
3×
T25
Option 2: Through the right side panel
2
3
1
3×
T25
5 Piping installation
INFORMATION
This unit is a heating only model. Therefore, all references
to cooling in this document are NOT applicable.
5.1 Preparing refrigerant piping
5.1.1 Refrigerant piping requirements
Also see "4.1.2 Special requirements for R32 units" [
4
5] for
additional requirements.
▪ Piping length: See "4.1.1 Installation site requirements of the
indoor unit" [ 4 5].
▪ 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 Ø6.4 mm (1/4")
Gas piping Ø15.9 mm (5/8")
▪ Piping temper grade and thickness:
Outer diameter
(Ø)
Temper grade Thickness (t)
(a)
6.4 mm (1/4") Annealed (O) ≥0.8 mm
t
Ø
15.9 mm (5/8") Annealed (O) ≥1.0 mm
(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.
5.1.2 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