Therma-Stor Products Group UA-135H - Manual (Page 5)

4.3 Electrical Requirements
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.
The UA-135H plugs into a common grounded 115VAC outlet. The
device draws around 11.4 Amps under normal operating conditions.
Note, the unit may trip the current of a 15A circuit, if the circuit
contains other heavy electrical loads. If used in an area which may
become wet, a ground fault interrupter (GFI) protected circuit is
recommended. Please, consult local electrical codes for any further
information.
Therma-Stor LLC offers a family of control devices for use with the
UA-135H. The controls are to be located remotely from the unit and
located in the space to be conditioned. The controls are low voltage
(24 volt) and should be connected to the UA-135H with low voltage
wire (thermostat or other appropriate).
Do not install the control panel where it may not accurately sense
the relative humidity such as near HVAC supply registers, near
exterior doors, on an outside wall, near a window, or near a water
source.
The installer must supply the wiring between the UA-135H and the
control panel. Be sure to safely route the control wiring to prevent
damage during installation.
Do not cross wires when connecting the UA-135H and the remote
control panel or damage to the transformer may result. The remote
controls of the UA-135H are powered by a low voltage circuit
(24VAC) and must NEVER contact or be connected to a high voltage
circuit.
The control wires leaving the UA-135H and the remote control
panels are numbered and color-coded to prevent confusion. Some of
the control wires leaving the UA-135H 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 inside the access panel of the UA-135H
before making control connections.
4.4 Condensate (Water) Removal
IMPORTANT:
Incorporate a trap for the assembly as shown in
Figure 2. Use care to keep the pipe assembly as flat to the floor
as possible, kinks and/or humps will prevent proper drainage.
The Ultra-Aire APD generates condensate.
Condensate drains by gravity via the 1"
x 3⁄4" bushing extending from the unit. It
is necessary to assemble your own drain
pipe assembly utilizing 3⁄4" PVC pipe to
get the condensate to a floor or other
drain. Pipe is commonly available in 10'
lengths from building supply, plumbing or hardware stores. Grade of
pitch should be 1" per 10'.
4.4A Lifting Condensate
An optional condensate pump kit may be
installed if a lift is required to dispose of
the condensate. The condensate pump
can be ordered direct from the factory.
See the optional parts list in Section 7 for
information on the kit.
4.5 Ducting
4.5A Installing Duct Collars
The UA-135H is equipped with 10" diameter round inlet and exhaust
collars. The inlet collar is factory installed. The inlet collar is designed
with tabs that fold inside the 10" hole located on the return panel of
the UA-135H.
To install the exhaust collar, bend all
four tabs out and away from the center
of the collar. The exhaust collar is
attached to the UA-135H by fastening
the four tabs on the outside of the
supply panel to the UA-135H. Fasten
the collar to the supply panel of the
UA-135H by removing one fan screw, placing the collar over the
four holes, then screwing the fan screw and three additional #10-24
thread cutting screws into the four holes near the 8" diameter outlet
hole.
4.5B 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 UA-135H 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 UA-135H to each isolated area is
recommended.
4.5C Fresh Air / Supply Air
IMPORTANT:
DO NOT draw air directly from the kitchen,
laundry, or isolated basement.
You may draw air from a basement that is open to the home. All
flexible ducting connected to the UA-135H should be UL listed.
A length of 6 feet or more of flex ducting on the outlet of the UA-
135H will reduce air noise from the impeller fan. A length of flexible
ducting on all UA-135H duct connections is recommended to reduce
noise and vibration transmitted to rigid ductwork in the structure.
Ducting the UA-135H as mentioned requires consideration of the
following points:
FOR HVAC INSTALLER ONLY
5 Ultra-Aire 135H Installer’s & Owner’s Manual