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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

21

EN

12 Preparation for Use

This consists of the following steps:

• Checking for Leaks.

• Evacuation of the installation.

• Start up.

• Troubleshooting.

12.1 Checking for leaks

Fig. 12.1 Checking for leaks in the installation.

Legend

1 Suction valve (gas)

2 Return valve (liquid)

3 Service manifold (suitable for R410a refrigerant)

4 Non-return valve

5 Gauge lines

6 Nitrogen cylinder

Warning

!

Use of high pressure gas - risk of injury. Pressure

testing should only be undertaken by competent

and qualified persons.

• Connect a service manifold set to the service port on

the gas line stop valve of the outdoor unit.

• Connect a nitrogen cylinder to the charging hose of

the refrigerant gauges.

• Carefully open the valves on the service manifold to

allow the nitrogen to enter the installation.

Caution do not open the service valve on the outdoor

unit as this will release the pre-charged refrigerant

from the outdoor unit.

• In the event of using R-410A coolant set it to 40 bar(g)

of pressure, for 10/20 min.

• Check that all the connections and joints are gastight.

If any leaks are found, repair and start the process

again from the beginning.

• On satisfactory completion of the test, close all the

valves on the service manifold and remove the

nitrogen cylinder.

• Release the pressure from the system by slowly

opening the valves on the service manifold.

• Do not continue to the next step until the pressure

test has been successfully completed.

Note!

According to Regulation 842/2006/EC, the

complete refrigerant circuit must be periodically

checked for leakage. Take the necessary actions

to ensure these tests are performed and the

results correctly logged into the maintenance

record of the machine. The leakage test must be

done with the following frequency:

- Systems with less than 3 kg of refrigerant =>

periodic leakage test not needed.

- Systems with 3 kg or more of refrigerant =>

at least once every 12 months.

- Systems with 30 kg or more of refrigerant =>

at least once every 6 months.

- Systems with 300 kg or more of refrigerant =>

at least once every 3 months.

Preparation for Use 12