3. Installation
3.1 Location
The Ultra-Aire should be located near the existing air handling system
to minimize the required ductwork for connecting the Ultra-Aire to
the existing air handling system.The controls for the Ultra-Aire are
remote from the unit and must be located in the space that is to be
conditioned. The controls are low voltage (24 volt) and should be
connected to the Ultra-Aire with low voltage thermostat cable.
If fresh air ventilation is desired, thought should be given to the
location for the fresh air ducting. A 6" round duct will have to be
installed on the Ultra-Aire and run to the outside of the structure to
bring in fresh air. Use an 8" insulated round duct for lengths of more
than 25' or if more than 100 CFM is needed.
3.2 Electrical Requirements
The Ultra-Aire plugs into a common grounded outlet on a 15 Amp
circuit. It draws between 6 and 7 Amps under normal operating
conditions. If used in a wet area (pool, spa room, or basement prone
to flooding), a ground fault interrupter protected circuit is required.
The installer must supply the wiring between the Ultra-Aire and the
control panel. Be sure to safely route the control wires to prevent
damage during installation. Be careful not to cross the wires when
connecting the Ultra-Aire and the remote control panel or damage to
the transformer may result.
The remote controls of the Ultra-Aire are powered by a low voltage
circuit (24 Vac) and must NEVER contact or be connected to a high
voltage circuit. The control wires leaving the Ultra-Aire and the
remote control panels are color coded to prevent confusion. Some of
the control wires leaving the Ultra-Aire may not be used with certain
control panels and should be left safely disconnected with wire
nuts taped onto the stripped ends. Be sure to consult the electrical
schematic in this manual or on the front panel of the Ultra-Aire before
making the control connections.
WARNING!
Do not allow the yellow lead
from the Ultra-Aire to contact the red lead or orange
lead from the Ultra-Aire or damage to the transformer
will result.
NOTE: Reset the ventilation timer before attempting to
program after initial installation. The timer may not ..
operate correctly until it is reset.
3.3 Condensate Removal
Condensate drains by gravity via the clear hose extending from the
unit. Route the hose to a floor drain. Use care to keep the hose as flat
to the floor as possible; excessive humps will prevent proper drainage.
We do not call for a trap since there is an internal trap with this unit.
If the Ultra-Aire is located too far from a floor drain for the attached
hose to reach, inexpensive 1⁄2" PVC pipe can be used to extend it. It is
commonly available in 10' lengths from building supply, plumbing and
hardware stores. It will slide tightly inside the end of the drain hose.
If more than one length of pipe is required, they can be joined with a
short piece cut from the end of the drain hose.
An optional condensate pump may be installed if a lift is required to
dispose of the condensate. The condensate pump kit can be ordered
direct from the factory. See item 27 on page 21.
3.4 Ducting
3.4A Installing Duct Collars
The Ultra-Aire is equipped with 8" and 6" round inlet collars and an
8" round white exhaust collar. The 8" and 6" round inlet collars are
designed with tabs that fold under the top of the Ultra-Aire. The 8"
round white exhaust collar is attached to the Ultra-Aire by (4) screws.
To install the inlet collars:
Insert the tabs of the collar into the hole in
the top of the Ultra-Aire and fold the tabs up to attach to the Ultra-Aire.
To install the exhaust collar:
Bend the (4) tabs toward the inside of
the collar 90°. Attach the collar to the Ultra-Aire cabinet using 1⁄2"
long #8 sheet metal screws. DO NOT use screws longer than 1⁄2" to
attach this collar or damage to the refrigeration system may result.
3.4B Ducting for Dehumidification
For the ideal installation, draw air from the central part of the home
and return it to the isolated areas of the home like the bedrooms,
den, utility room, or family room. The ductwork of the existing heating
system can be used to supply air to the home. If the existing supply
goes to isolated areas of the home, discharge the supply of the
Ultra-Aire into the supply of the existing heating system. If the existing
heating system incorporates a central supply, installation of a separate
supply duct from the Ultra-Aire to each isolated area is recommended.
DO NOT draw air directly from the kitchen, laundry, or basement. All
flexible ducting connected to the Ultra-Aire should be UL listed.
The inlet of the Ultra-Aire is the 8" diameter hole on top of the unit. An
8" round collar is supplied with the unit to attach to round duct. The
duct may be permanently attached to the collar. A 6" round collar is
provided with the unit to attach to the 6" hole in the top. The 6" collar
should be capped if fresh make-up air is not desired. If fresh make-up
air is desired see section 3.4C.
The outlet of the Ultra-Aire is located on the side of the unit. A second
8" round collar is supplied with the unit and can be attached using the
screws provided and the pre-punched holes in the cabinet side.
A length of 10 feet or more of acoustical flex ducting on the outlet of
the Ultra-Aire will reduce air noise from the blower. A length of flexible
ducting on all Ultra-Aire duct connections is recommended to reduce
noise and vibration transmitted to rigid ductwork in the structure.
Ducting the Ultra-Aire as mentioned in sections 3.4A-3.4G requires
consideration of the following points:
SAFETY PRECAUTIONS
3
Ultra-Aire 100V Installer’s & Owner’s Manual
