Air innovations HEPAir 24S050, Инструкция по установке, эксплуатации и обслуживанию, Страница: 26 / 51

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Performing a Pre-installation Check
✓
Check for the proper installation of the electrical plug configuration.
✓
Check for the properly sized breaker.
✓
Is the conditioned built with adequate insulation and vapor barriers?
✓
Are ducts installed above the ceiling or in accessible places properly sized before
being covered?
✓
Is enough space available around the unit for service and repair?
Locating the Unit
HEPAir units are typically installed indoors located near the space to be conditioned to minimize
the duct runs. Each unit is provided with one entering or return air inlet and three possible supply
air outlets for each of the evaporator and condenser sections. A maximum cumulative total length
for both supply and return ducts (including bends) of 25 feet (7.5 meter) is recommended. If
longer runs are needed use more than one supply opening to reduce the airflow in each duct by one
half.
See Recommended Flexible Ductwork Sizing Chart on page 49.
Provide a three-foot (1 meter) clearance around the unit for removal of grilles or ductwork, access
to filters and unit maintenance. If the humidifier is used, provide access space in front of it for
service.
Grilles
One grille is provided on the condenser outlet. The grille is removable and can be replaced with a
duct collar should warm air need to be ducted away from the mounting area. Additional grilles can
be purchased as an option and as wall grilles inside the conditioned space. The return air, or inlet,
to the unit must connect to the return air outlet from the conditioned space. Any of the three
supply air outlets on the unit can be used for the ductwork to the supply grille inside the
conditioned space. The procedures below apply to both the evaporator and the condenser sections.
In most cases, no ducts are installed on the condenser section because the unit is located in a
mechanical or storage type space. If exhaust heat is undesirable, use duct collars and ductwork to
move the heat outdoors or to another space.
Reducing Noise from the Unit
Consider noise when locating the unit close to the conditioned space or an adjacent occupied
space. A piece of 1 inch or two-inch (25 or 50mm) dense rubber or Styrofoam with foil face in
between the unit and the wall absorbs and reduces the noise from the unit. For air noise use larger
grilles or use flexible ductwork to absorb the noise. Sound usually travels as a line of sight. Sound
is reduced when it turns a corner, such as passing through a bend in ductwork. If the unit is
supported from a wall or joist, using a rubber pad under the unit will reduce vibration
transmission.