System air Fantech ATMO Series User manual

Installation, Operations, and Maintenance Manual
Manuel d’installation, de fonctionnement et de maintenance
ATMO™ Series
Fresh Air Appliance (FAA)
Appareil à air frais (AAF)
Literature Item #: 463913
Rev date: 07-26-2023
No. d'article #: 463913
Date de revision: 07-26-2023
Your ventilation system should be installed in conformance with the appropriate provincial requirements or, in the absence of
such requirements, with the current edition of the National Building Code, and / or ASHRAE’s “Good Engineering Practices”.
Votre système de ventilation doit être installé conformément aux exigences de la province où vous habitez ou, à défaut de
telles exigences, conformément à l’édition actuelle du Code national du bâtiment du Canada ou aux « méthodes d’ingénierie
appropriées » de l’ASHRAE.
Fantech reserves the right to modify, at any time and without notice, any or all of its products’ features, designs,
components and specifications to maintain their technological leadership position.
Please visit our website www.fantech.net for more detailed technical information.
Fantech se réserve le droit de modifier partiellement ou entièrement, en tout moment et sans préavis, les
caractéristiques, la conception, les composants et les spécifications de ses produits, afin de conserver sa
position de leader de technologie.
S'il vous plaît visitez notre site siteweb www.fantech.net pour des informations techiques plus détaillées.
United States
10048 Industrial Blvd., Lenexa, KS, 66215
Tel.: [phone] • Fax: [phone]
Canada
50 Kanalflakt Way, Bouctouche, NB, E4S 3M5
Tel.: [phone] • Fax: [phone]
PARTS IN THE BOX
Fresh Air Appliance, 1 pc
Hanging Chain Kit, 1 pc
Hardware Kit, 1 pc
Drain Hose Kit, 1 pc
External Damper Wire harness, 1 pc
Operation and Installation Manual, 1 pc
PIÈCES DANS LA BOÎTE
Appareil à air frais, 1 pc
Kit de suspension, 1 pc
Vis et matériel d'assemblage, 1 pc
Tuyau d’évacuation, 1 pc
Faisceau de câbles de clapet externe, 1 pc
Manuel d'installation, 1 pc
ATMO 150H
is not
ENERGY STAR
listed.

2
Note Warning/
Important
note
Information Technical
information Practical tip
PLEASE READ AND SAVE THESE INSTRUCTIONS
Before installation careful consideration must be given to how this system will operate if connected to
any other piece of mechanical equipment, i.e. a forced air furnace or air handler operating at a higher
static pressure. After installation, the compatibility of the two pieces of equipment must be conrmed by
measuring the airow of the Fresh Air Applliance (FAA) using the balancing procedure found in this manual.
It is always important to assess how the operation of any FAA may interact with vented combustion equipment (i.e.
Gas Furnaces, Oil Furnaces, Wood Stoves, etc.)
Products are designed and manufactured to provide reliable performance, but they are not guaranteed to be 100%
free of defects. Even reliable products will experience occasional failures, and this possibility should be recognized
by the user. If these products are used in a life support ventilation system where failure could result in loss or injury,
the user should provide adequate back-up ventilation, supplementary natural ventilation or failure alarm system, or
acknowledge willingness to accept the risk of such loss or injury.
Your ventilation system should be installed in accordance with the local building code that is in effect, in absence
of such requirements, it is recommenced to check with local authorities having jurisdiction in your area prior to
installing this product.

3
TABLE OF CONTENTS
DETERMINING YOUR AIRFLOW REQUIREMENT ..................................................... 4
INSTALLATION EXAMPLES
Fully dedicated system ................................................................ 5
Partially dedicated system .............................................................. 6
Simplified Installation ................................................................. 7
EXTERIOR DUCTING INSTALLATION
Weatherhood Location ................................................................. 8
Installing the ducting to the weatherhood ................................................... 8
INTERIOR DUCTING INSTALLATION
General Tips ........................................................................ 9
Installing duct to FAA.................................................................. 9
Supply & Exhaust Air Grilles Location....................................................... 9
FAA INSTALLATION ......................................................................... 10
AIRFLOW ADJUSTMENT & BALANCING ...........................................................12
LOW VOLTAGE CONTROL SYSTEMS ............................................................. 13
WIRING DIAGRAM ......................................................................... 15
TROUBLESHOOTING .........................................................................17
FAA MAINTENANCE CHART....................................................................18
PARTS LIST ...............................................................................37

4
Room classification Number of rooms CFM (L/s) CFM Required
Master bedroom x 10 L/s (20 CFM) =
Basement yes or no =
Bedrooms x 5 L/s (10 CFM) =
Living room x 5 L/s (10 CFM) =
Others x 5 L/s (10 CFM) =
Kitchen x 5 L/s (10 CFM) =
Bathroom x 5 L/s (10 CFM) =
Laundry room x 5 L/s (10 CFM) =
Utility room x 5 L/s (10 CFM) =
Total Ventilation Requirements (add last column ) =
if yes add 10 L/s (20 CFM)
if no = 0
1 CFM = 0.47 L/s
1 L/s = 2.13 CFM
Room Count Method
DETERMINING YOUR AIRFLOW REQUIREMENT
ASHRAE method
Ventilation Air requirements
Floor area Bedrooms
1 2 3 4 5
Ft2m2CFM L/s CFM L/s CFM L/s CFM L/s CFM L/s
<500 <47 30 128 38 18 45 21 53 25 60 28
501-1000 47-93 45 21 53 24 60 28 68 31 75 35
1001-1500 94-139 60 28 68 31 75 35 83 38 90 42
1501-2000 140-186 75 35 83 38 90 42 98 45 105 49
2001-2500 187-232 90 42 98 45 105 49 113 52 120 56
2501-3000 233-279 105 49 113 52 120 56 128 59 135 63
3001-3500 280-325 120 56 128 59 135 63 143 66 150 70
3501-4000 326-372 135 63 143 66 150 70 158 73 165 77
4001-4500 373-418 150 70 158 73 165 77 173 80 180 84
4501-5000 419-465 165 77 173 80 180 84 188 87 195 91
* ASHRAE 62.2-2016 Table 4.1, Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings.
Bathroom: If the FAA is going to provide the required local exhaust ventilation for each bathroom with each a continuous 20 CFM
(10 L/s), this ventilation rate can be considered as part of the whole-building ventilation rate.

5
INSTALLATION EXAMPLES
The way your heat/energy-recovery ventilator is installed can make a significant difference to the electrical
energy you use. To minimize the electricity use of the heat/energy-recovery ventilator, a stand-alone fully
ducted installation is recommended. If you choose a simplified installation that operates your furnace air
handler for room-to-room ventilation, an electrically efficient furnace that has an electronically commutated
(EC) variable speed blower motor will minimize your electrical energy consumption and operating cost.
Example only – duct configuration may differ depending on the model.
FULLY DEDICATED SYSTEM
BEST FOR NEW CONSTRUCTION
1. Stale air is drawn from
key areas of the home
requiring local exhaust
(bathroom, kitchen,
laundry room).
2. Fresh air is distributed
directly to habitable
rooms in the house
(bedrooms, living room)
3. The FAA’s airflow must
be balanced after
installation using the
procedure found in the
section “AIRFLOW
BALANCING”
Suggested installation for:
• Hydronic baseboard
• Inoor heating
• Electric baseboard
• Mini split heat pump
Benets: Provides the best
fresh air distribution in the
house; lowest operation cost
since the furnace/air handler
unit is not needed.
FAA ducting for fully Dedicated System
* Ductwork layout may dif-
fer depending on model
Air from inside
* Unit air flow should be balanced while FAA is on "Normal" speed and
furnace blower is running.
Stale air to
outside
Fresh air from
outside
Fresh air to
living areas

6
INSTALLATION EXAMPLES (CONT'D)
DIRECT CONNECTION of the FRESH air to living area to the RETURN PLENUM
of the AIR HANDLER (Stale air drawn from key areas of home)
PARTIALLY DEDICATED SYSTEM (BETTER)
Suggested installation for:
• Central furnace (air
handling unit or central air
conditioners)
• When ducting fresh air to
living area is not possible or
practical, i.e. expensive or
when the central AHU will
operate year-round.
Benets: Conditions the fresh
air prior to
distributing it throughout the
house
1. In order to provide proper distribution of the fresh air, it is
recommended that the furnace blower be set to run continuously or
interconnected with FAA. See furnace electrical connection on page
16.
2. Stale air is drawn from key areas of the home (bathroom, kitchen,
laundry room).
3. Fresh air is supplied to the return air plenum of the furnace.
4. Due to the difference in pressure between the FAA and the equipment
it is being connected to the FAA's airflow must be balanced on site,
using the procedure found in the section “AIRFLOW BALANCING”
* In the case of a multi-zone system, please contact Fantech customer
service prior to installing any installation type requiring the use of the
furnace interlock"
FAA/Furnace ducting for Partially Dedicated System
Air from inside
* Unit air flow should be balanced while FAA is on "Normal" speed and
furnace blower is running.
Air return
Cold air
return
* Ductwork layout may dif-
fer depending on model
Stale air to
outside
Fresh air from
outside
Fresh air to
living areas
Make sure the FAA is
capable of meeting the
required airow rate.
For Fresh Air Appliances (FAAs) that do not include an outdoor air motorized damper: If
you are using a partially dedicated or simplied installation, i.e. connecting the FAA supply
air duct to a furnace's return air duct, the FAA must operate continuously. When the FAA
is turned off, no warm exhaust air will ow through the FAA but the furnace's fan will
continue to draw in outdoor air directly into the furnace. If it's cold outside, cold air will be
introduced, without re-heating, directly into the furnace.
If the FAA is installed such that the homeowner may turn off the FAA during the winter, we
recommend installing a motorized damper between the FAA's supply air and the furnace's
return air duct that closes when the FAA is not operating. To install a damper accessory to
the product, locate the auxiliary connector on the side of the electrical box. See Figure 1.
Using the included wire harness, connect the damper accessory to the product.
Figure 1
*Auxiliary connector for external damper wire
harness, damper motor not included.

7
INSTALLATION EXAMPLES (CONT'D)
DIRECT CONNECTION of both the FAA SUPPLY AIR STREAM and EXHAUST AIR STREAM
to the FURNACE COLD AIR RETURN
SIMPLIFIED INSTALLATION
(GOOD)
(RETURN/RETURN METHOD)
Suggested installation for:
• When bathroom and kitchen
already have local exhaust
system
• May be suitable for
retrotting
Benets: Least expensive
installation type
1. Furnace blower must operate when ventilation from FAA is required. The furnace should
be set to run continuously or interlocked with FAA. See furnace electrical connection
on page 16.
2. A minimum separation of 1m (39’’) is recommended between the two direct
connections.
3. In order to prevent exhausting any fresh air, the FAA's exhaust air connection should be
upstream of the FAA's supply air connection when ducting to the furnace’s cold air return.
4. Due to the difference in pressure between the FAA and the equipment it is being
connected to the FAA's airflow must be balanced on site, using the procedure found in the
section “AIRFLOW BALANCING”
* In the case of a multi-zone system, please contact Fantech customer
service prior to installing any installation type requiring the use of the
furnace interlock"
Air from inside
* Unit air flow should be balanced while FAA is on "Normal" speed and
furnace blower is running.
1 m (3' 3")
min.
recommended
* Ductwork layout may dif-
fer depending on model
FAA/Furnace ducting for Simplified Installation
Stale air to
outside
Fresh air from
outside
Fresh air to
living areas
Motorized
damper
1 m (3' 3")
min.
recommended
Air return
For Fresh Air Appliances (FAAs) that do not include an outdoor air motorized damper: If
you are using a partially dedicated or simplied installation, i.e. connecting the FAA supply
air duct to a furnace's return air duct, the FAA must operate continuously. When the FAA
is turned off, no warm exhaust air will ow through the FAA but the furnace's fan will
continue to draw in outdoor air directly into the furnace. If it's cold outside, cold air will be
introduced, without re-heating, directly into the furnace.
If the FAA is installed such that the homeowner may turn off the FAA during the winter, we
recommend installing a motorized damper between the FAA's supply air and the furnace's
return air duct that closes when the FAA is not operating. To install a damper accessory to
the product, locate the auxiliary connector on the side of the electrical box. See Figure 1.
Using the included wire harness, connect the damper accessory to the product.
Figure 1
*Auxiliary connector for external damper wire
harness, damper motor not included”

8
EXTERIOR DUCTING INSTALLATION
WEATHERHOOD LOCATION
• Decide where your intake and exhaust hoods will be located.
Locating the Intake Weatherhood
• Should be located upstream (if there are prevailing winds) from the
exhaust outlet.
• At a minimum distance to 900 mm (3') away from dryer vents and furnace
exhaust (medium or high efficiency furnaces), driveways, oil fill pipes, gas
meters, or garbage containers.
• At a minimum height of 460mm (18’’) above the ground, or above the level
of expected snow accumulation.
• Ideally, keep weatherhoods 1m (3') from corners.
• Do not locate in the garage, attic, crawl space, or underneath deck.
Locating the Exhaust Weatherhood
• At least 460mm (18") above ground or above the depth of expected snow accumulation
• Ideally, keep weatherhoods 1m (3') from corners.
• Not near a gas meter, electric meter or a walkway where fog or ice could create a hazard
• Do not locate in a garage, workshop or other unheated space
INSTALLING THE DUCTING TO THE WEATHERHOODS
A well designed and installed ducting system will allow the FAA to operate at its
maximum efficiency. The inner liner of the flexible insulated duct must be secured to the
sleeve of the weatherhood (as close to the outside as possible) and to the appropriate duct
connection on the FAA. The insulation should remain full and not crushed. The outer liner,
which acts as a vapor barrier, must be completely sealed to the outer wall and the FAA
using tape and/or caulking. A good bead of high quality caulking (preferably acoustical
sealant) will seal the inner flexible duct to both the FAA duct connection and the
weatherhood prior to securing them.
To minimize airflow restriction, the flexible insulated duct that connects the two outside
weatherhoods to the FAA should be stretched tightly and be as short as possible.
Twisting or folding the duct will severely restrict airflow.
See “Installation Diagram Examples” for installation examples.
1Using the duct connection of
the outside hood, outline the
intake & exhaust holes to be
cut. The holes should be slightly
larger than the duct connection
to allow for the thickness of the
insulated flexible duct. Cut a
hole for both the intake and
exhaust hoods.
3 Push the hood into the opening
and then attach the hood to the
outside wall with mounting
screws.
Repeat the installation
procedure for both the supply
and exhaust hoods.
2Pull the insulated flexible duct
through the opening until it is
well extended and straight.
Slide the duct’s inner vinyl sleeve
over the hood duct connection
and secure. Pull the insulation
over the duct and pull the vapor
barrier over the sleeve. Secure
with appropriate tape or
sealant.
4Using a caulking gun, seal
around both hoods to prevent
any leaks.
STEPS FOR HOOD INSTALLATION:
36" (1m)
INTAKE
OUTSIDE CORNER INSIDE CORNER
EXHAUST
18" (460mm) 18" (460mm)
3' (900mm)
min.
36” (1m)
REQUIRES A WEATHERHOOD
WITH A BACKDRAFT
DAMPER ON THE EXHAUST
SIDE.

9
INTERIOR DUCTING INSTALLATION
• To maximize airflow through the ductwork system, all ducts should be kept short and have as few bends or elbows as possible.
• 45º elbows are preferable to 90º.
• Use “Y“ ducts instead of “T” ducts whenever possible.
• All duct joints must be fastened with screws or duct sealant and wrapped with aluminum foil duct tape to prevent leakage.
• Galvanized ducting from the FAA to the living areas in the house is recommended whenever possible, although flexible ducting
can be used in moderation when necessary.
• To avoid possible noise transfer through the ductwork system, a short length (approximately 300 mm, 12’’) of nonmetallic flexible
insulated duct should be connected between the FAA and the supply/exhaust ductwork system.
• The main supply and return line to/from the FAA must have the same diameter as the duct connection or larger.
• Branch lines to the individual rooms may be as small as 100 mm (4’’).
Installing ducting to FAA
Warning: Always fix and secure the 6" collars with the screws supplied. Avoiding this critical step the unit will accumulate condensation.
Tip to Installer: To ensure a better installation and to avoid an undesired bend in the duct, align the duct with the collar before securing over the four
hooks.
The fresh air from outside and the Exhaust air to outside from the termination ducts to the FAA must be fully insulated of thermal insulation ducts to
minimize heat loss and gain. All tapes, mastics, and nonmetallic clamps used for field installation of flexible ducts shall be listed and labeled to Standard
UL 181B - Closure Systems for Use With Flexible Air Ducts and Air Connectors.
Air Connector A category of flexible duct not meeting the requirements of an Air Duct per UL 181 Standard (not tested for flame penetration, puncture
and impact) and having limitations on use, length and location as defined by NFPA 90A and 90B. Air Connectors are identified by a “round shape” listing
label of the listing agency.
Air Duct A category of flexible duct tested and classified as to the Surface Burning Characteristics in accordance with the UL 181 Standard. Air Ducts
are identified by a “rectangular shape” listing label of the listing agency.
To ensure quiet operation of ENERGY STAR qualified FAA, each product should be installed using sound attenuation techniques appropriate for the
installation. Once insulated flex is attached to the collar, slide collar in keeper section, fixed collar to the unit with four screws supplied in installation
kit to insure a proper seal.
Warning: To reduce air leakage in the final installation always seal the joint between all collars and keepers with aluminum tape or mastic.
Supply air grilles location
In homes without a forced air furnace, fresh air should be supplied to all habitable rooms, including bedrooms and living areas. It should be supplied
from high wall or ceiling locations. Grilles that diffuse the air comfortably are recommended. In homes with a forced air furnace, you may want to connect
the FAA to the furnace ductwork (see information below).
Exhaust air grilles location
The stale air exhaust system is used to draw air from the points in the house where the worst air quality problems occur. It is recommended that return
air ducts be installed in the bathroom, kitchen, and laundry room. Additional return air ducts from strategic locations may be installed. The furnace
return duct may also be used to exhaust from. In this method, the exhaust air is not ducted back from bathrooms, kitchens, etc to the HRV with
“dedicated lines”.
Insert vinyl duct over the hooks
and seal with a Tie wrap
Insert insulation inside the double
collar.
Finish by taping the vapor
barrier to the collar to insure
proper seal.
Slide collar on the unit. Fix and secure with four screws supplied
and seal all joints.
As per building codes and installation requirements for combustion appliances:
Air return ducts, or openings for air return, should not be placed in enclosed spaces containing combustion
appliances that are subject to spillage.

10
FAA INSTALLATION
LOCATION
The FAA must be located in a conditioned space where it will be possible to conveniently service the unit. Typically
the FAA would be located in the mechanical room or an area close to the outside wall where the weatherhoods will
be mounted. If a basement area is not convenient or does not exist, a utility room may be used.
Attic installation must meet the following conditions:
• Attic temperature must be above freezing conditions at all times and for best performance should be 12°C
(54 °F).
• The condensate drain (if included) must be installed so that the condensate drains and is protected from freezing.
• The attic is easily accessible for equipment maintenance and inspection.
Connecting appliances to the FAA is not recommended. These include:
• Clothes dryer
• Range top
• Stovetop fan
• Central vacuum system
• Bathroom exhaust fans unless they are specifically designed for this purpose
These appliances may cause lint, dust or grease to collect in the FAA, damaging the unit.
Connecting any of these types of appliances to the
FAA will void your warranty.
Mounting- Chain mount
• Have a nearby power supply
(120 volts, 60Hz)
• Choose a location which
allows the possibility
of mounting the unit to
supporting beams.
• The unit should be level
in order to allow proper
condensate drainage
• To minimize noise, do not
install unit in living area
• Ensure proper drainage
1 Place fastening hooks on
the strapping board or
the oor joists.
2 Take at screwdriver and
slightly pull on punched out
tab. Put chain link under
hook.
4 Install a spring on each
chain. Hook the spring
in the links so a loop is
created in the chain. The
spring will then support the
unit's weight and absorb
vibrations.
3 Hang the unit by slipping
a link onto the hanging
hooks, making sure the
unit is level.

11
INSTALLING DRAIN LINE
Insert the threaded drain adapter thru the bottom of the FAA and hand tighten the plastic nut, and with a wrench tighten the nut another half turn to assure a
better seal.
Install the condensate line (included in drain kit). Insert condensate tubing by pushing clear plastic line over drain adapter. Make condensate trap by
looping the clear plastic tubing. This procedure is to avoid foul odor to enter the FAA.
The drain nipple is placed upside down in the unit to prevent it being damaged during shipping or the installation of the unit.
The Switch on the electrical box is used to toggle between STANDBY, REDUCED speed and NORMAL speed modes.
Place the unit in NORMAL speed to perform the balancing.
Make a loop in condensate line, not be subject to
freezing temperatures.
Use a condensate pump if you don’t have access to a drain.
CAUTION
A Drain and Tubing (included) must be installed for all HRV units. For ERV units, drain is not required, however, it is recommended for
climates where outdoor temperatures typically remain below -25°C (-13°F) combined with an indoor relative humidity higher than 40%
for a period of 24 hours or serveral days in a row.

12
Airflow balancing
Balancing must be completed using the Fantech ECO-Touch®
Programmable Touch Screen Wall Control
ENTERING BALANCING MODE
In the options menu during the initial 5 second countdown
sequence, long press on "ECO" area for 5 seconds to
enter basic balancing mode. The supply and exhaust
fans are adjusted on high speed only and the offsets
are proportionally applied to the medium and low speed
automatically.
STAGE 1
(ADJUST LEVEL OF EXHAUST FAN IN HIGH
SPEED):
• In this step, balance exhaust fan and
measure airow on the exhaust air side
• Pressing on "up" or "down" will adjust the fan
speed in increments of 1%.
• Once the desired exhaust airow is reached,
press on "next" and move on to the next
stage.
STAGE 2
(BALANCE SUPPLY FAN ONLY IN HIGH
SPEED):
• In this step, balance supply fan and measure
airow on the supply air side
• Pressing on "up" or "down" will adjust the fan
speed in increments of 1%.
• Once happy with the outcome, press on
"next" to complete balancing
• The supply and exhaust offset values will be
proportionally applied to low and medium
speed as well.
Fresh Air
from Outside
Stale Air
to Outside
Stale Air
from Home
Fresh
Air
Stale
Air
Fresh Air
to Home
Remove all four (4)
nylon knock out seals.
Do not discard.
LOW
LOW
LOW
LOW
LOW
LOW
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
Aspiration
d'air frais
Évacuation
d'air vicié
Aspiration
d'air vicié
Air frais
Air vicié
Distribution
d'air frais
BASBASBAS
BAS
BASBAS
HAUT
HAUTHAUT
HAUT
HAUTHAUT
Enlever les quatre (4)
bouchons de nylon.
Ne pas les jeter.
Pressure / Pression Fresh air / Air frais Stale air / Air vicié
IN. W.G. Pascal CFM L/s CFM L/s
PO. d’eau (Pa) PCM PCM
0.36 90 216 102 - -
0.34 85 209 99 222 105
0.32 80 200 94 214 101
0.30 75 192 91 207 98
0.28 70 183 86 198 93
0.26 65 173 82 189 89
0.24 60 163 77 180 85
0.22 55 153 72 170 80
0.20 50 142 67 159 75
0.18 45 131 62 148 70
0.16 40 119 56 136 64
0.14 35 107 50 124 59
0.12 30 95 45 111 52
0.10 25 82 39 97 46
0.08 20 68 32 83 39
0.06 15 55 26 69 33
0.04 10 55 26 54 25
Balancing chart 2.0Balancing chart 1.5
Pressure / Pression Fresh air / Air frais Stale air / Air vicié
IN. W.G. Pascal CFM L/s CFM L/s
PO. d’eau (Pa) PCM PCM
0.60 149 186 88 187 88
0.58 144 182 86 184 87
0.56 139 177 84 180 85
0.54 135 172 81 176 83
0.52 130 167 79 173 82
0.50 125 162 76 169 80
0.48 120 157 74 165 78
0.46 115 152 72 161 76
0.44 110 146 69 156 74
0.42 105 141 67 152 72
0.40 100 136 64 147 69
0.38 95 130 61 143 67
0.36 90 125 59 138 65
0.34 85 119 56 133 63
0.32 80 113 53 128 60
0.30 75 107 50 123 58
0.28 70 102 48 117 55
0.26 65 96 45 112 53
0.24 60 90 42 106 50
0.22 55 84 40 100 47
0.20 50 78 37 94 44
0.18 45 71 34 88 42
0.16 40 65 31 82 39
0.14 35 59 28 76 36
0.12 30 52 25 69 33
0.10 25 46 22 62 29
0.08 20 39 18 56 26
0.06 15 33 16 49 23
AUTO MANUAL
OPTIONS
AUTO MANUAL
OPTIONS
NEXT
AUTO MANUAL
OPTIONS
NEXT
0 %
ADJUST
AUTO MANUAL
OPTIONS
NEXT
0 %
BALANCE

13
WALL CONTROLS
CENTRAL CONTROLS
These cannot be used with another central control
*Maintain polarity between control and FAA (+ →+ ; - →-)
ECO SERIES* FEATURES CONNECT TO
ECO-Touch® • Our most complete, yet easy-to-use control system
• Sleek design with backlight touchscreen LCD
• ECO mode selects the best operating mode and speed for the season, minimizing energy use associated with
ventilation
• Set preferred indoor relative humidity range and ventilation mode for day and night conditions
• No battery to replace, all programmed settings are retained during power outages
• Maintenance reminder indicator
• Error code messages reduce troubleshooting time
B
A
→
D+
ECO-TouchIAQ • Integrated VOC Sensor
• Our most complete, yet easy-to-use control system
• Sleek design with backlight touchscreen LCD
• ECO mode selects the best operating mode and speed for the season, minimizing energy use associated with
ventilation
• Set preferred indoor relative humidity range and ventilation mode for day and night conditions
• No battery to replace, all programmed settings are retained during power outages
• Maintenance reminder indicator
• Error code messages reduce troubleshooting time
ECO-Feel • ECO mode selects the best operating mode and speed for the season, minimizing energy use associated with
ventilation
• Integrated VOC Sensor
• No battery to replace, all programmed settings are retained during power outages
1. Ensure that unit is not plugged when connecting the control
2. Recirculation mode is only available with the Flex100H ES, HERO series and the models with the “R” sufx at the end of the model
number.
The wiring connectors can be removed for easier connection.
* Please see instruction manuals for individual controls for proper wiring and set up of control systems.
Installation of a user-accessible control with your product model will improve comfort and may significantly reduce the product model’s energy use

14
AUXILIARY CONTROL –These controls can be paired with central controls or combined together.
*Maintain polarity between control and FAA (+ →+ ; - →-)
RTS SERIES FEATURES CONNECTS TO
• Wireless timer
• Can only be paired with the ECO-TouchIAQ
• 20/40/60 minute timer with LED light
• Boosts system to high speed with the touch of a button
• Up to 5 can be used in one system
• Use in bathroom, kitchen, laundry room
Connects wireleslly to the
RTS2* • 20- minute timer with LED light
• Boosts system to high speed with the touch of a button
• Up to 5 can be used in one system
• Use in bathroom, kitchen, laundry room
+T
-T
RTS5* • 20/40/60 minute timer with LED light
• Boosts system to high speed with the touch of a button
• Up to 5 can be used in one system
• Use in bathroom, kitchen, laundry room
WALL CONTROLS (CONT'D)
MDEH SERIES FEATURES CONNECT TO
MDEH1 • Rotary dial Dehumidistat
• Multiple units can be used
• We recommend setting the relative humidity above 80% during the summer
D
D
EDF SERIES FEATURES CONNECTS TO
EDF8 • MODE button provides 3 modes of operations: Ventilation , Recirculation and Standby
• User selected fan speed: Reduced, Medium, Normal and 20 minutes per hour
• AUTO setting allows the homeowner to deactivate the dehumidistat
• When the humidity exceeds the desired setpoint, the ventilation system operates at normal speed
• Once the desired humidity level is achieved, your ventilation system resumes to its previous mode of
operation.
EDF3 • Press button once for ECONO mode: continuous low or medium speed.
• Press button twice for 20 MIN/H mode: the unit will cycle 20 minutes ON/40 minutes OFF at intermit-
tent speed and repeat.
• Press button three times for CONT mode: the unit will run continuously in ventilation or recirculation on
HIGH speed.
W
W

15
WIRING DIAGRAM - ATMO PRODUCT LINE
Observe polarity on all accessory controls where applicable.

W
R
G
C
Y
WR G Y
Standard Furnace Interlock Wiring
THERMOSTAT
TERMINALS
FURNACE
24-VOLT
TERMINAL BLOCK
FOUR
WIRE
TWO WIRE
heating only
TWO
WIRE
COOLING SYSTEM
W
R
G
C
Y
WR G Y
Alternate Furnace Interlock Wiring
THERMOSTAT
TERMINALS
FURNACE
24-VOLT
TERMINAL BLOCK
FOUR
WIRE
TWO WIRE
heating only
TWO
WIRE
COOLING SYSTEM
WIRE JOINT
WIRING DIAGRAM (CONT'D)
WIRING DIAGRAM TO
FURNACE
FOR A FURNACE
CONNECTION TO
A COOLING SYSTEM:
On some newer furnaces and older
thermostats, energizing the R and
G terminal at the furnace has the
effect of energizing the Y at the
thermostat and thereby turning on
the cooling system. If you identify this
type of thermostat, you must use the
“Alternate Furnace Interlock Wiring”
Standard Accessory Control Contact
Alternative Accessory Control Contact
As per building codes and installation requirements for combustion appliances:
Air return ducts, or openings for air return, should not be placed in enclosed spaces containing combustion
appliances that are subject to spillage.

17
TROUBLESHOOTING
Problem Causes Solutions
Air is too dry Dehumidistat control is set too low Increase the desired level of humidity. Change ventilation mode from
continuous mode to standby.
FAA out of balance Have contractor balance FAA airows
Air is too humid Dehumidistat control is set too high Reduce the desired level of humidity. Combine this with the use of continuous
exchange mode.
Sudden change in temperature Wait until outside temperature stabilizes (winter). Heating will also improve
situation.
Storing too much wood for heating Store a majority of your wood outside. Even dried, a cord of wood contains
more than 20 gallons of water.
Dryer vent exhaust is inside home Make sure the dryer vent is exhausting outside.
Poor air circulation near windows Open curtains or blinds.
FAA out of balance Have contractor balance FAA airows
Well sealed basement door is closed Open the door or install a grill on the door.
Failed damper system may be stuck in recirculation
mode
Check defrost damper. If damper is always blocking incoming fresh air, have
contractor verify damper system.
Persistent condensation
on window
Improper adjustment of dehumidistat control Reduce the desired level of humidity. Combine this step with use of continuous
exchange mode.
FAA out of balance Have contractor balance FAA
Poor air circulation near windows Open curtains or blinds.
Poor Air Flows 1/4" (6mm) mesh on the outside hoods is plugged Clean exterior hoods or vents
Filters plugged Remove and clean lter
Core obstructed Remove and clean core
Indoor grilles closed or blocked Check and open grilles
Inadequate power supply at site Have electrician check supply voltage
Ductwork is restricting airow Check duct installation
Improper speed control setting Increase the speed of the FAA (i.e. change unit control from REDUCED to NORMAL
speed)
FAA airow improperly balanced Have contractor balance FAA airows
Ducting has fallen down or been disconnected from FAA Have contractor reconnect ducting
Supply air feels cold Poor location of supply grilles, the airow may irritate
the occupant
Locate the grilles high on the walls or under the baseboards, install ceiling
mounted diffuser or grilles so as not to directly spill the supply air on the
occupant (eg. Over a sofa)
Turn down the FAA supply speed. A small duct heater (1kw) could be used to
temper the supply air
Placement of furniture or closed doors is restricting the movement of air in
the home
Outdoor temperature extremely cold If supply air is ducted into furnace return, the furnace fan may need to run
continuously to distribute ventilation air comfortably
FAA and/or Ducts frosting up FAA air ows are improperly balanced Have HVAC contractor balance the FAA airows
Malfunction of the FAA defrost system Note: minimal frost build-up is expected on the core before unit initiates
defrost cycle functions
Condensation or Ice Build Up in
Insulated Duct to the Outside
Incomplete vapor barrier around insulated duct Tape and seal all joints
A hole or tear in outer duct covering Tape any holes or tears made in the outer duct covering
Ensure that the vapor barrier is completely sealed.
LED is ashing Everything is in good operations
LED is not ashing No Power is being transmitted to the Control Board Make sure unit is plugged.
Transformer may need replacing.
Note: It is best to get the unit checked by a certied HVAC Contractor/Technician.

18
FAA MAINTENANCE CHART
Maintenance Required Recommended Frequency Date Maintenance Performed
Check and Clean Filters Every 3 months or if
dirty
Check Heat Recovery
Core
Every 6 months
Check Drain Pan and
Lines
Every 3 months
Vacuum the Inside of the
Unit
Annually
Clean and Un-block
Outside
Hoods
Annually
Clean and Inspect Duct
Work
Annually
General Servicing by a
Qualied Contractor
Annually
* Schedule may be altered to meet your own needs. More frequent servicing may be required depending on the
severity of your home's indoor and outdoor environments.
Contractor Telephone Number Date Serviced
Make a scan of the QR code above to access
Fantech’s warranty in English, French, or
Spanish. Includes a 7y Motor, 5y on Electri-
cal components and Core limited warranty.
If additional support is needed to retrieve the war-
ranty, visit fantech.net; call (800) 747–1762 (US),
(800) 565–3548 (Canada), or [phone]
(Latin America); email [email protected]; or mail
us at 10048 Industrial Blvd, Lenexa, KS 66215
United States or at 50 Kanalläkt Way, Bouctouche,
NB E4S 3M5 Canada.
Scannez le code QR ci-dessus pour accéder à
la garantie de Fantech en anglais, français ou
espagnol. Garantie limitée du Moteur 7 ans,
composants électriques et noyau 5 ans inclue.
Si vous avez besoin d'une assistance supplémen-
taire pour récupérer la garantie, visitez fantech.net;
appelez au [phone] (États-Unis), (800) 565-
3548 (Canada) ou [phone] (Amérique
latine); envoyez un courriel à [email protected];
ou envoyez-nous un courrier à 10048 Industrial Blvd,
Lenexa, KS 66215 États-Unis ou à 50 Kanalläkt Way,
Bouctouche, NB E4S 3M5 Canada.

Manuel d’installation, de fonctionnement et de maintenance
ATMO Series
Appareil à air frais (AAF
No. d'article #: 463913
Date de révision: 2023-07-26
Votre système de ventilation doit être installé conformément aux exigences de la province où vous habitez ou, à défaut de
telles exigences, conformément à l’édition actuelle du Code national du bâtiment du Canada ou aux « méthodes d’ingénierie
appropriées » de l’ASHRAE.
Fantech se réserve le droit de modifier partiellement ou entièrement, en tout moment et sans préavis, les
caractéristiques, la conception, les composants et les spécifications de ses produits, afin de conserver sa
position de leader de technologie.
S'il vous plaît visitez notre site siteweb www.fantech.net pour des informations techiques plus détaillées.
United States
10048 Industrial Blvd., Lenexa, KS, 66215
Tél.: [phone] • Fax: [phone]
Canada
50 Kanalflakt Way, Bouctouche, NB, E4S 3M5
Tél.: [phone] • Fax: [phone]
PIÈCES DANS LA BOÎTE
Appareil à air frais, 1 pc
Kit de suspension, 1 pc
Vis et matériel d'assemblage, 1 pc
Tuyau d’évacuation, 1 pc
Faisceau de câbles de clapet externe, 1 pc
Manuel d'installation, 1 pc
MC
ATMO 150H
n'est pas
Homologué
ENERGY STAR.

20
Note Avertissement/
Note importante Information Information technique Conseil pratique
VEUILLEZ LIRE ET CONSERVER CES INSTRUCTIONS
Avant de procéder à l’installation, examinez avec soin la façon dont le système fonctionnera s’il est relié à tout
autre appareil mécanique, notamment une fournaise à air pulsé ou un appareil de traitement d’air dont la pression
statique est plus élevée. Une fois l’installation terminée, la compatibilité des deux appareils doit être conrmée en
mesurant le débit d’air du appareil à air frais (AAF) au moyen de la procédure d’équilibrage du présent manuel. Il
importe de toujours évaluer l’interaction du AAF avec les appareils de chauffage à évacuation
(fournaise à gaz, fournaise à mazout, poêle à bois, etc.)
Les produits sont conçus et fabriqués pour fournir une performance able, mais ils ne sont pas garantis à 100%
sans défaut. Même les produits ont des pannes occasionnelles et cette possibilité devrait être reconnue par
l'utilisateur. Si ces produits sont utilisés dans un système de ventilation qui maintien des fonctions vitales où une
défaillance pourrait entraîner des pertes ou des blessures, l'utilisateur doit fournir une ventilation de secours
adéquate, une ventilation supplémentaire naturelle, un système d'alarme de défaillance ou d'accepter les risques
de pertes ou de blessures.
Votre système de ventilation doit être installé en conformité avec le code du bâtiment local qui est en vigueur, en
l’absence de telles exigences, il est recommandé de vérier auprès des autorités locales ayant juridiction dans
votre région avant d’installer ce produit.