Installing The Condensate Drain Line - STIEBEL ELTRON CUR 25 I BASIC Installationsanleitung

InstallatIon
assembly
5.3

installing the condensate drain line

Since the external unit is outside, moisture can get into it. When
operating the air conditioning system, an increased amount of
condensate may be created, especially in heating mode. In the
floor plate of the external unit, an aperture is provided to connect
a condensate drain line.
f Push the condensate drain connector provided together with
the seal in the floor plate aperture.
f connect a suitable condensate drain line to the connector.
Risk of damage
!
Insulate the condensate drain so it cannot freeze in winter.
Single-split appliances are equipped with a condensate
tray heater, which provides protection against freezing
at low outside temperatures for the condensate tray, but
not the condensate drain line.
installing the condensate drain line
5.3.1 Securing the external unit
f Use heavy-duty rawl plugs to secure the wall mounting
panels.
f Position the external unit in the selected installation location
and secure it safely, so it will not vibrate, using suitable
bolts, screws and nuts.
5.3.2 notes on the installation of refrigerant lines
Ensure that both the internal appliance and external unit are
installed in such a way that the maximum lengths and heights of
the refrigerant lines between the two devices are not exceeded.
When routing the refrigerant lines, observe the following
information.
Risk of damage
!
Only use copper lines with a wall thickness of at least
1.0 mm (for Ø 1/2" or 12 mm to 5/8" or 16 mm). For pipes
with thinner walls, the pressure resistance will be insuf-
ficient. There is a risk of burst pipes.
- Never saw off refrigerant lines, but rather trim them with a
pipe cutter. Always keep the pipe ends closed.
- When deburring, hold the pipe opening facing down, so no
filings can get into the pipe.
- Always carry out flange work carefully to prevent loss of
refrigerant in the pipes later on.
- Always route pipe bends with a minimum radius of 100 mm.
www.stIebel-eltron.com
- Route refrigerant lines carefully and protect them from
slipping.
- Ensure that no strain can be placed on the connections.
- Route refrigerant lines separately from each other with
diffusion-proof thermal insulation.
5.3.3 routing connecting lines
Risk of damage
!
Bend the copper pipes for the refrigerant lines only
once into their final position. copper pipes that are bent
several times can leak or break.
f Bundle together all the lines and cables that will be routed
along the same path, for example with insulating tape, and
shape this package of lines and cables accordingly.
f Route and secure the package of cables/lines.
5.3.4 connecting refrigerant lines
The connections from the refrigerant lines to the external unit
must be flanged connections. Ensure that union nuts for the
appliance connections are pushed onto the pipe before flange
work. The flange must be smooth and of equal length all the way
round. The inner surface must be plain and free of cracks.
5.3.5 line connection to the external unit
Risk of injury
When handling the refrigerant, wear suitable safety gog-
gles and gloves.
f Remove any protective casing from the refrigerant
connections.
f Remove the union nuts from the valves.
f Trim the refrigerant lines to the right length.
f Push the union nuts onto the refrigerant lines.
f Make the necessary pipe flange.
f Make the refrigerant line straight and tighten the union nut
by turning it three to four times by hand.
f Use two spanners to tighten and counterhold the pipework
connections. Observe the necessary torque values:
pipe diameter
1/4" / 6 mm
3/8" / 10 mm
1/2" / 12 mm
5/8" / 16 mm
torque
14 - 18 Nm
34 - 42 Nm
49 - 61 Nm
74 - 78 Nm
cur basIc | 21