AirTech AIR+ PIV/L Instructions d'installation et de mise en service - Page 4

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INSTALLATION

TYPICAL INSTALLATION

Fig.1.

Air+ PIV UNIT:

Prior to installation ensure that the loft is adequately ventilated. The

following tips can be used as a basis for this.

However this is not an

exhaustive list.

Ensure that any ridge vents, tile vents and continuous air gaps are not

blocked. These may not be present in older properties; however there should be

enough 'leakage' to accommodate the requirements of the Air+ PIV unit.

One method of checking this is by entering the loft, closing the loft hatch,

switching off the lights and looking for any daylight penetration. If daylight

is visible it is reasonable to assume that there is adequate ventilation

within the loft.

There may well be occasions where a loft is so well sealed that additional

ventilation may need to be provided by the owner/occupier. This will not only

assist the operation of the Air+ PIV, but may also help to prevent future

expensive structural damage caused by inadequate air movement. It should be

noted that there can never be too much ventilation in a loft.

Ensure that all water tanks are covered and sealed.

Check that all water pipes are lagged.

Ensure that any extract fans are discharging to the outside and not into the

loft.

Check that the loft hatch is tightly sealed.

Ensure that all holes in the ceilings are sealed, i.e. ceiling light fittings

etc.

A visual inspection of any flues or chimneys for leakage in the loft should be

carried out by the installer.

If any leakage points are found, or if there is any doubt at all, the

installer should advise the house owner/provider as soon as possible and seek

instruction from them before proceeding with the installation.

Flexible ducting is supplied as standard.

Ensure that this is pulled out and

does not allow any moisture to collect; it should be a smooth single curve to

the grille.

If the application requires a fixed 90 degree bend, straight

ducting may be used. See Spares and Accessories on page 13.