Installation Of The Refrigerant Pipes; Handling The Refrigerant Pipes; Laying Of The Refrigerant Pipes - Saunier Duval SDH 10-051 NK Installation Manual

10.3 INSTALLATION OF THE REFRIGERANT PIPES

10.3.1 HANDLING THE REFRIGERANT PIPES

DANGER!
Danger of burns and eye injuries.
In the event of soldering, use suitable protection
equipment (protective soldering mask, soldering gloves,
.
solderer clothing)
WARNING!
Danger of breakdowns or malfunction. Danger of wear
in the refrigerant pipes.
To ensure that the refrigerant pipes do not wear take
the following points into consideration:
- Use pipes specifically intended for cooling.
- Ensure that the pipes are clean, dry and polished on
the inside.
- The insulation of the pipes should be done using
specific insulation for cooling.
- Observe the minimum and maximum pipe distances
for each model.
- Do not bend the pipes where possible. When
bending them, keep the radius as wide as possible
to minimise load losses.
- If soldering, do so using strong welding (copper-
silver alloy). During the soldering process a stream
of dry nitrogen should be run through the inside of
the pipes in order to avoid rusting.
- Only cut the refrigerant pipes using pipe cutters and
always keep the pipe ends covered.
- Any flaring work should be performed meticulously
in order to avoid subsequent losses of gas through
the pipes.
- When reviving keep the pipe opening directed
downwards in order to prevent shavings from getting
into the pipes.
- Mount the joining tubes carefully, ensuring they
cannot become displaced. Ensure that they will not
cause traction in the joins.
- Equip the refrigerant pipes (inflow and outflow)
separately and with high density heat insulation.
- Carefully squeeze the flaring connector, centring the
flaring cone and the flanged nut. Applying excessive
force without correctly centring can damage the
thread and cause a reduction in the water tightness
in the join.
NOTE!
In specialised dealers you will find refrigerant pipes
which are thermally insulated as a Saunier Duval
accessory.
CASSETTE - FLOOR-CEILING - DUCTED UNITS
10 INSTALLATION OF THE FLOOR-CEILING INDOOR UNIT
10.3.2

LAyING OF THE REFRIGERANT PIPES

NOTE!
Ensure that after mounting there is enough space for
accessing the indoor unit connections.
• Carefully bend the installation pipe in the right direction.
WARNING!
Danger of breakdowns or malfunction.
Danger of wear in the refrigerant pipes.
Bend the pipe carefully to prevent choking or breaks.
• Position the pipes in the runoff provided.
• Cut the pipes, leaving enough extra piping hanging over to
enable the unit to be hooked up at the indoor unit joins.
• Insert the nut in the refrigerant pipe and carry out the
flaring.
• Insulate the refrigerant piping correctly and separately
(figure 10.1). To do so, cover any possible cuts with masking
tape or insulate any bare refrigerant piping with the
corresponding insulation material used for cooling.
Fig. 10.1 Pipe Insulation.
Legend
1 Refrigerant pipe (gas)
 Insulation
 Refrigerant pipe (liquid)
4 Winding
5 Condensed water drainpipe
4
/ Installation Manual