Dometic Breathe Easy Installation & Operation Manual page 2

Power
The unit operates on 120V/60Hz, 220V/50Hz, or 230V/60Hz AC power and is wired to the incoming power of the air conditioning system.
The unit is configured for 230V/50Hz or 60Hz as a default. If it is to be used for 120V/60Hz the switch on the ballast must be switched to
the left to the 120V/60Hz position. See table below for electrical specifications and Figure 1 for wiring information. 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.
ELECTRICAL SPECIFICATIONS
Volts/Hz/mA
UV Bulb Watts
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 drips & 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. Set ballast switch to right (white dot on right) if using the default 230V/50Hz or 60Hz, or to left (white dot on
left) if using 120V/60Hz and apply appropriate sticker from tag on power cord. FAILURE TO DO SO WILL VOID THE WARRANTY.
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.
Figure 1: Electrical Wiring Diagram
AC: Use supplied wire to mount pilot light up to
120/60Hz,
7" (178 mm) away for optimum visibility.
220V/50Hz,or
230V/60Hz
DO NOT WIRE UNIT TO BLOWER POWER OR BALLAST WILL BE
DAMAGED AND UV BULB LIFE WILL BE GREATLY REDUCED.
S O
YSTEM PERATION
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.
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 hour of bulb life is lost each time it is turned on and off, which is why the unit
should never be wired to blower power.
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.
2
4", 5", 6" I -D M 7", 8", 10" I -D
OR N UCT ODELS OR N UCT
115/60/200 115/60/250
220/50/350 220/50/350
230/60/200 230/60/225
12 20
Tag on power cord with voltage stickers for ballast switch
M
AINTENANCE
Replacing the UV Bulb
Like all light bulbs, UV bulbs have a limited life span. Unlike regular light bulbs that work until they burn out, UV bulbs lose their germicidal
effectiveness over time and must be replaced even though they may still produce light.
After approximately 1 year of continuous use (about 9,000 hours), the UV bulb will lose power and have to be replaced. Replace with a new
M
ODELS Dometic UV bulb (see "Replacement Parts"). Use of any other bulb will void the warranty.
NOTE
The bulb will still glow blue after 9,000 hours of use, but the UV radiation will not be strong enough to be functional. If the bulb
is glowing red or orange instead of a bright purple-blue, the bulb needs to be replaced immediately.
Refer to Figure 2 below and follow these steps to replace the bulb:
1. Disconnect power to the unit by turning off the breaker to the air conditioning system's incoming terminal strip.
2. Allow 5 minutes for the bulb (#1) to cool.
3. Loosen the finger screws (#2) to open and lift out the bulb housing (#3).
4. Pop the power-cord strain relief (#5) out of the housing (#3) to give easier access to the plug. Pull the bulb out of the power plug socket
then twist the bulb to remove it from the bulb clips (#4).
5. Take a new Dometic UV bulb (#1) (see "Replacement Parts") and twist the bulb to insert it into the bulb clips (#4) then slide it toward the
power-cord strain relief (#5) end of the housing (#3) to create a 3/16-inch (5mm) gap (#8) between it and the housing (#3). Write the
in-service month and year on the "Replacement Due Date" sticker (included with the bulb) and attach it over the old sticker.
6. Insert the bulb prongs firmly into the power plug socket. If the prongs don't fit, rotate the socket 90 degrees.
7. Slide the power-cord strain relief (#5) back into the housing (#3) making sure to orient it as shown in Figure 2: The plug goes to the
inside, the side of the strain relief with 2 pressure clips goes toward the open area of the housing and the side of the strain-relief with 1
pressure clip goes toward the closed area of the housing. It is important to seat the power-cord strain relief correctly to avoid air leaks
that could cause secondary condensation.
8. Insert the lip of the housing (#3) into the tube (#6), align the finger screws with the screw holes, then tighten the finger screws (#2). Check
for any misalignment that could cause air leaks and correct any you find. It is important to seat the housing correctly to avoid air leaks
that could cause secondary condensation.
9. Reconnect power to the unit by turning on the breaker to the air conditioning system's incoming terminal strip.
10. 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. (See the location of the pilot light in Figure 1.)
Figure 2: Diagram of the Breathe Easy In-Duct Tube
4
1 2
3
8
4
1 UV Bulb
2 Finger Screws
3 Bulb Housing
5
4 Bulb Clips (2 pairs)
5 Power-Cord Strain Relief
6 Breathe Easy Tube
7 Nano-Mesh Structure
NOTE: A slight twist in the
6
structure is normal and should
not be straightened. This shape
creates a vortex for better
purification of the air.
8 Gap Between Bulb and Housing
NOTE: You must have a 3/16"
(5mm) gap between bulb and
housing.
7
3