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4.1B Space
Location should have enough clearance to handle the unit’s
overall dimensions as well as the necessary return/supply
ductwork to the unit.
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4.1C Low Voltage Wiring
Unit location should be in an area where field wiring the
remote controls (low voltage) to the unit will be possible.
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4.1D Back-Draft Damper
(P/N 4023647)
It is recommended that a back draft damper be used in
the discharge duct of the Ultra-Aire 65H, especially when
connecting to the supply ducting system. The backdraft
damper prevents supply air from counter flowing through
the Ultra-Aire 65H when it is not operating. The unit location
should be chosen to allow installation of this accessory.
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4.1E Support Structure and Suspension
Place the Ultra-Aire 65H on supports to raise the base of the
unit. Do not place the Ultra-Aire 65H directly on structural
building members without vibration absorbers or unwanted
noise may result.
The Ultra-Aire 65H may be suspended with a hang kit
(4028111) or a suitable alternative from structural members,
as long as the suspending assembly supports the Ultra-Aire
65H’s base in its entirety. Do not hang the Ultra-Aire 65H
from the cabinet. Remember to place a drain pan under the
unit if it is suspended above a finished area or above an area
where water leakage could cause damage.
4.2 Electrical Requirements
WARNING!
WARNING: DO NOT ALLOW THE YELLOW LEAD FROM
THE ULTRA-AIRE TO CONTACT THE RED LEAD FROM THE
ULTRA-AIRE OR DAMAGE TO THE TRANSFORMER WILL
RESULT.
The Ultra-Aire 65H plugs into a common grounded
115VAC outlet. The device draws 5.5 Amps under normal
operating conditions. 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 Ultra-Aire 65H. 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 Ultra-Aire 65H with low voltage wire
(thermostat or other appropriate).
CAUTION
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 Ultra-Aire
65H and the control panel. Be sure to safely route the control
wiring to prevent damage during installation.
CAUTION
Do not cross wires when connecting the Ultra-Aire 65H and
the remote control panel or damage to the transformer may
result. The remote controls of the Ultra-Aire 65H 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 Ultra-Aire 65H and the remote
control panels are numbered and color-coded to prevent
confusion. Some of the control wires leaving the Ultra-Aire
65H may not be used with certain control panels and should
be left unconnected with wire nuts taped onto the stripped
ends for safety. Be sure to consult the electrical schematic in
this manual or inside the access panel of the Ultra-Aire 65H
before making control connections.
4.3 Condensate (Water) Removal
CAUTION
A trap in the drain line is preferred, but not required for
the unit to drain properly. Local codes may require a trap.
Use care to keep the pipe assembly as flat to the floor as
possible. Kinks and/or humps will prevent proper drainage.
FOR HVAC INSTALLER ONLY
4
Ultra-Aire 65H Installer’s & Owner’s Manual
Hang Kit (4028111) shown suspending a UA65H. Available
from your dealer or Therma-Stor. Call 1-800-533-7533.
