Carrier 42VMC Manual de instalación descargar pdf (Pagina 18)

42VMC---N

GB - 17

ENGLISH

Units are prearranged for introduction of renewal air through

a prepunched hole located on back side.

Back knockout allows connection of fresh air inlet duct.

• Use locally purchased material, suitable for operating

temperatures of 60 °C (continuous).

Conduits can be of flexible polyester (with spiral core) or

corrugated aluminium, externally covered with anti-condensate

material (fibre glass from 12 to 25 mm thickness).

• To complete the installation, all non-insulated ducts must be

covered with anti-condensate insulation (ex. expanded

neoprene, 6 mm thickness).

Not observing of these instructions may cause

condensate dripping; the manufacturer will not be held

responsible for any damage caused.

• The supplementary fan motor for outside air intake has to be

supplied separately and controlled by a bipolar ON-OFF switch

with safety fuses (field-installed).

To adjust the fan motor air flow to the required values it is

advisable to install a speed controller.

Fresh air flow must be less than 10% of the total air flow, to

avoid operating problems.

For fresh air ventilation rates higher than 10%, a primary air

treatment system with separate deflectors is recommended.

• Install an air inlet grille with filter inspection port to prevent

dust and dirt from entering and fouling the indoor unit heat

exchanger.

Filter installation also makes the installation of a duct closing

damper during shutdown periods unnecessary.

570

100

Ø 80

Models 009N - 012N

Models 014N - 018N - 024N

Hole for external air intake

Models 028N - 048N

Ø 70

Ø 74

Fresh air renewal

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Carrier 42VMC Manual de instalación Pagina 18