Dometic In-Duct Model, Breathe Easy in-Duct Model Installation And Operation Manual

Breathe Easy Air Purifier
In-Duct Model

Installation & Operation Manual

HOW IT WORKS

The In-Duct Dometic Breathe Easy Air Purifier uses your marine air
conditioning system’s blower to move air through the unit where
ultraviolet (UV) light and innovative Photocatalytic Nano-Mesh
technology improve air quality.

The unit uses a specific frequency of UV light that enables maximum
effectiveness in reducing pollutants such as pollen, mold spores,
bacteria, viruses, fumes, and odors, yet it produces no harmful ozone.

UV energy activates the titanium-dioxide catalyst on the surface of the
nano-mesh structure. The molecules of pollutants that come in contact
with the catalyst are reconfigured into nontoxic elements.

The density and quantity of pollutants present affect how rapidly the air will be cleaned. As air re-circulates and makes multiple passes through the
system you will notice continuously improving purification levels.

NOTE: The air purifier does not fix the source of ongoing odor problems. For example, a leak that caused mold must be repaired and the mold
must be removed.

SAFETY PRECAUTIONS

WARNING

• Do not use outdoors.

• Keep the cord away from heated surfaces.

• Never open the cover without turning off the main breaker.

• Never operate this unit if it has a damaged cord or plug.

• Never operate this unit if it has been damaged or submerged in water.

• Do not place in an area where uncured siliconized sealers are being used, as the vapors will inhibit the unit’s photocatalytic
capability.

DANGER

• Never look directly at a lit ultraviolet (UV) bulb. The direct power of the UV bulb can be harmful to the eyes. However,
looking at the indirect blue glow from the bul b is safe.

• This equipment is not ignition protected per CFR 183.410 and may not be installed in areas that may be exposed to
flammable gas.

SYSTEM SETUP

Selecting the Location

• This unit is designed for installation within the supply-air ducting of an air conditioning system positioned downstre am of the blower.

• If there is a T-box or other diverter box attached to the blower, position the unit in line with the side that gets the most air. Or, relocate the
diverter box away from the blower and place the Breathe Easy between the blower and the diverter. If the unit is installed downstream of
a diverter box, be sure the diameter of the Breathe Easy matches the diameter of the outgoing duct. (For example, a diverter box could
have 6” ducting going in, then have 2”, 4”, and 5” branches going out, so you would need a 5”-diameter unit instead of a 6”-diameter unit
to place it on the outgoing branch that gets the most air.)

• Make sure the ducting that connects to the air purifier is UV-stable. If you can not confirm that it is, replace the ducting in the area
stretching at least 3 feet (1m) before and 3 feet (1m) after the unit with UV-stable ducting to prevent eventual deterioration of the ducting.

Deteriorated ducting may create air leaks that could cause secondary condensation.

• The ducting should service an indoor area.

• The unit requires annual replacement of the UV bulb, so situate the unit for easy access to both the bulb housing and the bulb ballast.

• The unit requires electricity and operates on 115V/60Hz, 220V/50Hz, or 230V/60Hz AC power. Its power supply is auto-sensing, so no
rewiring of ballast or switching is needed to match operating voltage and Hz. See “Power” for electrical specifications.

• Do not install in areas that may be exposed to flammable gas.

14

Power

DO NOT WIRE UNIT

OR THE BALLAST

TO BLOWER POWER

WILL BE DAMAGED

AND UV BULB LIFE

WILL BE GREATLY

REDUCED.

AC:
115/60Hz,
220V/50Hz,or
230V/60Hz

A

I

R

F

L

O

W

12

3

4

5

6

7

4

8

The unit operates on 115V/60Hz, 220V/50Hz, or 230V/60Hz AC power and is wired to the incoming power of the air conditioning system. The
unit’s power supply is auto-sensing, so no rewiring of ballast or switching is needed to match operating voltage and Hz. Do NOT wire the unit to
blower power, as this will significantly reduce the life of the UV bulb and cause damage to the ballast . See table below for electrical
specifications and Figure 1 for wiring information.

ELECTRICAL
SPECIFICATIONS

Volts/Hz/mA

UV Bulb Watt s

Installation

1. Determine the optimum location within the ducting route (see “Selecting the Location”).

2. Cut the ducting to make room for unit. Make sure the ducting in the areas 3 feet (1m) before and 3 feet (1m) after the unit is UV stable. If
not, replace that area with ducting that is UV stable. When cutting the ducting leave enough length to cover the ends of the Breathe Easy
tube without having to stretch the ducting, but no so much length that you create bends or kinks.

3. Determine the direction of air flow and install the tube per the air-flow arrow on the bulb housing. Note that the incoming air enters the
tube at the end opposite the power-cord end. (See Figure 2.)

4. Position the unit so the bulb housing is easily accessible for annual bulb replacement (see Figure 2) and write in the in-service month and
year on the “Replacement Due Date” sticker.

5. Attach the UV-stable ducting to each end of the unit. Use at least 3 large-head screws per side to catch the ducting wire then use a tie
strap around the connection. Finish with duct tape to ensure a good air-tight seal.

WARNING

An air leak at the duct connection could cause secondary condensation to form, resulting in drip s & wetness in the surrounding area.

6. Turn off the breaker to the air conditioning system’s incoming terminal strip.

7. Connect the Breathe Easy to incoming AC power at the air conditioning system’s incoming terminal strip and follow the wiring diagram
shown in Figure 1.

8. Turn breaker on. Look for a blue glow coming from the unit. Never look directly at a lit UV bulb! Or, verify that the blue pilot light on the
ballast is lit, which indicates the bulb is working. The blue pilot light will be lit only if power is applied to the unit and the bulb is operational
(i.e., if the bulb is not properly seated but power is connected, the pilot light will not be lit). See the location of the pilot light in Figure 1.

N-DUCT MODEL 5” IN-DUCT MODEL 6” IN-DUCT MODEL 7” IN-DUCT MODEL 8” IN-DUCT MODEL

4” I

115/60/200
220/50/350
230/60/200

12 12 12 20 20

115/60/200
220/50/350
230/60/200

115/60/200
220/50/350
230/60/200

115/60/250
220/50/350
230/60/225

115/60/250
220/50/350
230/60/225

Figure 1: Electrical Wiring Diagram

SYSTEM OPERATION

On

The Breathe Easy unit is in operational ready mode when power is supplied to the unit and the bulb is lit and the blue pilot light on the ballast is lit.
The air purification process begins when the air conditioning system’s blowers begin moving air through the tube.

Off
Disconnect power to the unit by turning off the breaker to the air conditioning system’s incoming terminal strip. Always turn the unit off when
performing maintenance.

NOTE

It is normal for the Breathe Easy UV bulb to remain lit as long as power is applied to the unit at the breaker, even if the AC unit is in
OFF mode. This maximizes the life of the bulb. One hou r of bu lb life is lost each time it is turned on and off, which is why the unit
should never be wired to blower power.