Vaillant VA 6-050 MXNHDI, Installation Manual

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Multi Split Type Installation Manual
15 EN
9.3.5 Laying the Pipes
• If installing the rear piping:
• Place the lid supplied for the hole in the piping and
insert the coolant pipes with the condensed water
pipe through the hole.
• Seal the hole properly after installing the pipes.
• Carefully bend the installation pipe in the right
direction.
Warning!
Danger of breakdowns or malfunction. Danger of
wear in the coolant pipes.
Bend the pipe carefully to prevent choking or
breaks.
• 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 coolant pipe and carry out the
flaring.
• Carefully remove the insulation of the flared
connections in the indoor unit.
• Hang the indoor unit on the top edge of the mounting
plate.
• Tilt the lower part of the indoor unit forwards and
insert an auxiliary tool (e.g. a piece of wood) between
the mounting plate and the unit (see Figure 9.9).
Fig. 9.9 Assembling the indoor unit.
• Connect the coolant pipes and the condensed water
hose to the corresponding pipes and installation drain.
• Insulate the coolant piping correctly and separately. To
do so, cover any possible cuts with masking tape or
insulate any bare coolant piping with the
corresponding insulation material used for cooling.
Fig. 9.10 Laying the Pipes.
Legend
1 Heat-resistant material
2 Drain pipe
3 Coolant pipe
4 Piping support plate
5 Indoor/outdoor electric cable
• Insert the electric piping, connect the line on the
indoor unit terminal strip and assemble the cabling
covering (see section 13).
• Carry out the start up and the equipment functional
test (see section 15).
• Fix the entire indoor unit (see section 9.3.6)..
Note!
The connections in the flaring should be
accessible in order to carry out the water
tightness tests.
• Install the mounting plate, lining up the holes with the
help of the plate.
9.3.6 Installation of the Indoor Unit Body
• Check that the installation has been carried out
correctly and that there are no leaks (see section 15.1).
• Securely hang the indoor unit body onto the upper
notches of the mounting plate. Briefly move the body
from side to side to verify that it is secure.
• Lift the body up slightly from underneath, press it
onto the mounting plate and then lower it vertically.
The body will fit into the lower supports on the
mounting plate.
• Check that the indoor unit is properly secured.
• In the event that the body does not slot into the
supports properly, repeat this process.
Installation of the Wall Mounted Indoor Unit 9