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Vaillant V 12-060 M2W Installation Manual

Download Installation manual of Vaillant V 12-025 W Air Conditioner for Free or View it Online on All-Guides.com. This version of Vaillant V 12-025 W Manual compatible with such list of devices, as: V 12-025 W, V 12-060 M2W, V 12-035 W, V 12-050 W, V 12-060 W

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Split Type Installation Manual

13

EN

9.3.2 Handling the refrigerant Pipes

Danger!

Danger of burns and eye injuries.

When brazing or soldering pipe lines, use

suitable protection equipment (protective eye

protection and mask, welding gloves, flame

proof clothing)

.

Warning

!

Danger of breakdowns or malfunction. Danger of

damage to refrigerant pipes through the use of

unsuitable materials

.

- Use only pipes specifically intended for refrigeration

and R410a refrigerant.

Note!

In specialised wholesalers you will find suitable

refrigerant pipes and the correct thermal

insulation.

- Ensure that the refrigerant pipes are clean, dry and

polished on the inside.

- The insulation of the pipes should be done using

specific class ‘O’ closed cell insulation.

- Observe the minimum and maximum pipe lengths for

each model.

- Wherever possible avoid installing excessive numbers

of bends in pipes. Do not over bend the pipe, keep the

radius as wide as possible to minimise losses.

- When brazing pipes together, use only the correct

welding materials. During the brazing process a stream

of dry nitrogen should be run through the inside of the

pipes in order to avoid oxidisation forming inside the

pipe connection.

- Only cut the coolant pipes using propriety pipe cutters

ensuring no swarf enters the pipe and always keep the

pipe ends sealed wherever possible.

- Any flaring work should be performed meticulously in

order to create the correct connection and to avoid

subsequent refrigerant leaks.

- When reaming the cut pipe keep the pipe opening

directed downwards in order to prevent shavings from

getting into the pipes.

- Mount the connecting tubes carefully, ensuring they

cannot become displaced during brazing. Ensure that

there is no strain on the pipe joints.

- Ensure that all pipework is insulated with the correct

grade of closed cell insulation and that all joints in the

insulation are sealed with insulation tape or glued.

- Carefully tighten the flaring connectors, centring the

flaring cone and the flanged nut. Applying excessive

force without correctly centering can damage the

thread and may allow water ingress into the

connection.

9.3.3

Correct installation of the condensate pipe work

Warning

!

Danger of breakdowns or malfunction. Danger of

water leaks and blockages from unit and

pipework.

- Ensure that sufficient air breaks and traps are

provided to avoid water being retained within the

indoor unit. Otherwise, the condensed water could leak

from the indoor unit.

- For gravity drains ensure fall is sufficient, the pipework

is adequately supported and does not sag and bends

are of large radius to avoid blockages.

- If the water pipe is run outdoors, ensure that it is

insulated against freezing.

- If the condensed water pipe run through an un-heated

room, fit thermal insulation.

- Avoid installing the condensed water pipe with a rising

bend (see Figure 9.1).

Fig. 9.1 Avoid rising bends.

- If the drain is run to a tank or butt, avoid installing the

condensed water pipe with it free end submerged in

water (see Figure 9.2).

Fig. 9.2 Avoiding submerging the end.

Installation of the Indoor Unit 9